first commit

[sv2nmigen.git] / parse_sv.py

# %{
# /*
#  * Copyright (c) 1998-2017 Stephen Williams (steve@icarus.com)
#  * Copyright CERN 2012-2013 / Stephen Williams (steve@icarus.com)
#  *
#  *    This source code is free software; you can redistribute it
#  *    and/or modify it in source code form under the terms of the GNU
#  *    General Public License as published by the Free Software
#  *    Foundation; either version 2 of the License, or (at your option)
#  *    any later version.
#  *
#  *    This program is distributed in the hope that it will be useful,
#  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
#  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  *    GNU General Public License for more details.
#  *
#  *    You should have received a copy of the GNU General Public License
#  *    along with this program; if not, write to the Free Software
#  *    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#  */
from ply import *

#from parse_tokens import tokens
import lexor
tokens = lexor.tokens # list(set(lexor.tokens).union(set(tokens)))
literals = lexor.literals

precedence = [\
    ('right', 'K_PLUS_EQ', 'K_MINUS_EQ', 'K_MUL_EQ', 'K_DIV_EQ',
              'K_MOD_EQ', 'K_AND_EQ', 'K_OR_EQ'),
    ('right', 'K_XOR_EQ', 'K_LS_EQ', 'K_RS_EQ', 'K_RSS_EQ'),
    ('right', '?', ':', 'K_inside'),
    ('left', 'K_LOR'), 
    ('left', 'K_LAND'), 
    ('left', '|'), 
    ('left', '^', 'K_NXOR', 'K_NOR'), 
    ('left', '&', 'K_NAND'), 
    ('left', 'K_EQ', 'K_NE', 'K_CEQ', 'K_CNE', 'K_WEQ', 'K_WNE'), 
    ('left', 'K_GE', 'K_LE', '<', '>'), 
    ('left', 'K_LS', 'K_RS', 'K_RSS'), 
    ('left', '+', '-'), 
    ('left', '*', '/', '%'), 
    ('left', 'K_POW'), 
    ('left', 'UNARY_PREC'), 
    ('nonassoc', 'less_than_K_else'), 
    ('nonassoc', 'K_else'), 
    ('nonassoc', '('), 
    ('nonassoc', 'K_exclude'), 
    ('nonassoc', 'no_timeunits_declaration'), 
    ('nonassoc', 'one_timeunits_declaration'), 
    ('nonassoc', 'K_timeunit', 'K_timeprecision')
    ]
()
# -------------- RULES ----------------
()
#'''source_text : timeunits_declaration_opt _embed0_source_text description_list 
def p_source_text(p):
    '''source_text : timeunits_declaration_opt _embed0_source_text description_list 
    '''
    print(p)
()
def p__embed0_source_text(p):
    '''_embed0_source_text : '''
    # { pform_set_scope_timescale(yyloc); }
()
def p_assertion_item_1(p):
    '''assertion_item : concurrent_assertion_item '''
    print(p)
()
def p_assignment_pattern_1(p):
    '''assignment_pattern : K_LP expression_list_proper '}' '''
    print(p)
    # { PEAssignPattern*tmp = new PEAssignPattern(*$2);
    #   FILE_NAME(tmp, @1);
    #   delete $2;
    #   $$ = tmp;
    #       }
()
def p_assignment_pattern_2(p):
    '''assignment_pattern : K_LP '}' '''
    print(p)
    # { PEAssignPattern*tmp = new PEAssignPattern;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_block_identifier_opt_1(p):
    '''block_identifier_opt : IDENTIFIER ':' '''
    print(p)
()
def p_block_identifier_opt_2(p):
    '''block_identifier_opt :  '''
    print(p)
()
def p_class_declaration_1(p):
    '''class_declaration : K_virtual_opt K_class lifetime_opt class_identifier class_declaration_extends_opt ';' _embed0_class_declaration class_items_opt K_endclass _embed1_class_declaration class_declaration_endlabel_opt '''
    print(p)
    # { // Wrap up the class.
    #   if ($11 && $4 && $4->name != $11) {
    #         yyerror(@11, "error: Class end label doesn't match class name.");
    #         delete[]$11;
    #   }
    #       }
()
def p__embed0_class_declaration(p):
    '''_embed0_class_declaration : '''
    # { pform_start_class_declaration(@2, $4, $5.type, $5.exprs, $3); }
()
def p__embed1_class_declaration(p):
    '''_embed1_class_declaration : '''
    # { // Process a class.
    #   pform_end_class_declaration(@9);
    #       }
()
def p_class_constraint_1(p):
    '''class_constraint : constraint_prototype '''
    print(p)
()
def p_class_constraint_2(p):
    '''class_constraint : constraint_declaration '''
    print(p)
()
def p_class_identifier_1(p):
    '''class_identifier : IDENTIFIER '''
    print(p)
    # { // Create a synthetic typedef for the class name so that the
    #   // lexor detects the name as a type.
    #   perm_string name = lex_strings.make($1);
    #   class_type_t*tmp = new class_type_t(name);
    #   FILE_NAME(tmp, @1);
    #   pform_set_typedef(name, tmp, NULL);
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_class_identifier_2(p):
    '''class_identifier : TYPE_IDENTIFIER '''
    print(p)
    # { class_type_t*tmp = dynamic_cast<class_type_t*>($1.type);
    #   if (tmp == 0) {
    #         yyerror(@1, "Type name \"%s\"is not a predeclared class name.", $1.text);
    #   }
    #   delete[]$1.text;
    #   $$ = tmp;
    #       }
()
def p_class_declaration_endlabel_opt_1(p):
    '''class_declaration_endlabel_opt : ':' TYPE_IDENTIFIER '''
    print(p)
    # { class_type_t*tmp = dynamic_cast<class_type_t*> ($2.type);
    #   if (tmp == 0) {
    #         yyerror(@2, "error: class declaration endlabel \"%s\" is not a class name\n", $2.text);
    #         $$ = 0;
    #   } else {
    #         $$ = strdupnew(tmp->name.str());
    #   }
    #   delete[]$2.text;
    #       }
()
def p_class_declaration_endlabel_opt_2(p):
    '''class_declaration_endlabel_opt : ':' IDENTIFIER '''
    print(p)
    # { $$ = $2; }
()
def p_class_declaration_endlabel_opt_3(p):
    '''class_declaration_endlabel_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_class_declaration_extends_opt_1(p):
    '''class_declaration_extends_opt : K_extends TYPE_IDENTIFIER '''
    print(p)
    # { $$.type = $2.type;
    #   $$.exprs= 0;
    #   delete[]$2.text;
    #       }
()
def p_class_declaration_extends_opt_2(p):
    '''class_declaration_extends_opt : K_extends TYPE_IDENTIFIER '(' expression_list_with_nuls ')' '''
    print(p)
    # { $$.type  = $2.type;
    #   $$.exprs = $4;
    #   delete[]$2.text;
    #       }
()
def p_class_declaration_extends_opt_3(p):
    '''class_declaration_extends_opt :  '''
    print(p)
    # { $$.type = 0; $$.exprs = 0; }
()
def p_class_items_opt_1(p):
    '''class_items_opt : class_items '''
    print(p)
()
def p_class_items_opt_2(p):
    '''class_items_opt :  '''
    print(p)
()
def p_class_items_1(p):
    '''class_items : class_items class_item '''
    print(p)
()
def p_class_items_2(p):
    '''class_items : class_item '''
    print(p)
()
def p_class_item_1(p):
    '''class_item : method_qualifier_opt K_function K_new _embed0_class_item '(' tf_port_list_opt ')' ';' function_item_list_opt statement_or_null_list_opt K_endfunction endnew_opt '''
    print(p)
    # { current_function->set_ports($6);
    #   pform_set_constructor_return(current_function);
    #   pform_set_this_class(@3, current_function);
    #   current_function_set_statement(@3, $10);
    #   pform_pop_scope();
    #   current_function = 0;
    #       }
()
def p_class_item_2(p):
    '''class_item : property_qualifier_opt data_type list_of_variable_decl_assignments ';' '''
    print(p)
    # { pform_class_property(@2, $1, $2, $3); }
()
def p_class_item_3(p):
    '''class_item : K_const class_item_qualifier_opt data_type list_of_variable_decl_assignments ';' '''
    print(p)
    # { pform_class_property(@1, $2 | property_qualifier_t::make_const(), $3, $4); }
()
def p_class_item_4(p):
    '''class_item : method_qualifier_opt task_declaration '''
    print(p)
    # { /* The task_declaration rule puts this into the class */ }
()
def p_class_item_5(p):
    '''class_item : method_qualifier_opt function_declaration '''
    print(p)
    # { /* The function_declaration rule puts this into the class */ }
()
def p_class_item_6(p):
    '''class_item : K_extern method_qualifier_opt K_function K_new ';' '''
    print(p)
    # { yyerror(@1, "sorry: External constructors are not yet supported."); }
()
def p_class_item_7(p):
    '''class_item : K_extern method_qualifier_opt K_function K_new '(' tf_port_list_opt ')' ';' '''
    print(p)
    # { yyerror(@1, "sorry: External constructors are not yet supported."); }
()
def p_class_item_8(p):
    '''class_item : K_extern method_qualifier_opt K_function data_type_or_implicit_or_void IDENTIFIER ';' '''
    print(p)
    # { yyerror(@1, "sorry: External methods are not yet supported.");
    #   delete[] $5;
    #       }
()
def p_class_item_9(p):
    '''class_item : K_extern method_qualifier_opt K_function data_type_or_implicit_or_void IDENTIFIER '(' tf_port_list_opt ')' ';' '''
    print(p)
    # { yyerror(@1, "sorry: External methods are not yet supported.");
    #   delete[] $5;
    #       }
()
def p_class_item_10(p):
    '''class_item : K_extern method_qualifier_opt K_task IDENTIFIER ';' '''
    print(p)
    # { yyerror(@1, "sorry: External methods are not yet supported.");
    #   delete[] $4;
    #       }
()
def p_class_item_11(p):
    '''class_item : K_extern method_qualifier_opt K_task IDENTIFIER '(' tf_port_list_opt ')' ';' '''
    print(p)
    # { yyerror(@1, "sorry: External methods are not yet supported.");
    #   delete[] $4;
    #       }
()
def p_class_item_12(p):
    '''class_item : class_constraint '''
    print(p)
()
def p_class_item_13(p):
    '''class_item : property_qualifier_opt data_type error ';' '''
    print(p)
    # { yyerror(@3, "error: Errors in variable names after data type.");
    #   yyerrok;
    #       }
()
def p_class_item_14(p):
    '''class_item : property_qualifier_opt IDENTIFIER error ';' '''
    print(p)
    # { yyerror(@3, "error: %s doesn't name a type.", $2);
    #   yyerrok;
    #       }
()
def p_class_item_15(p):
    '''class_item : method_qualifier_opt K_function K_new error K_endfunction endnew_opt '''
    print(p)
    # { yyerror(@1, "error: I give up on this class constructor declaration.");
    #   yyerrok;
    #       }
()
def p_class_item_16(p):
    '''class_item : error ';' '''
    print(p)
    # { yyerror(@2, "error: invalid class item.");
    #   yyerrok;
    #       }
()
def p__embed0_class_item(p):
    '''_embed0_class_item : '''
    # { assert(current_function==0);
    #   current_function = pform_push_constructor_scope(@3);
    #       }
()
def p_class_item_qualifier_1(p):
    '''class_item_qualifier : K_static '''
    print(p)
    # { $$ = property_qualifier_t::make_static(); }
()
def p_class_item_qualifier_2(p):
    '''class_item_qualifier : K_protected '''
    print(p)
    # { $$ = property_qualifier_t::make_protected(); }
()
def p_class_item_qualifier_3(p):
    '''class_item_qualifier : K_local '''
    print(p)
    # { $$ = property_qualifier_t::make_local(); }
()
def p_class_item_qualifier_list_1(p):
    '''class_item_qualifier_list : class_item_qualifier_list class_item_qualifier '''
    print(p)
    # { $$ = $1 | $2; }
()
def p_class_item_qualifier_list_2(p):
    '''class_item_qualifier_list : class_item_qualifier '''
    print(p)
    # { $$ = $1; }
()
def p_class_item_qualifier_opt_1(p):
    '''class_item_qualifier_opt : class_item_qualifier_list '''
    print(p)
    # { $$ = $1; }
()
def p_class_item_qualifier_opt_2(p):
    '''class_item_qualifier_opt :  '''
    print(p)
    # { $$ = property_qualifier_t::make_none(); }
()
def p_class_new_1(p):
    '''class_new : K_new '(' expression_list_with_nuls ')' '''
    print(p)
    # { list<PExpr*>*expr_list = $3;
    #   strip_tail_items(expr_list);
    #   PENewClass*tmp = new PENewClass(*expr_list);
    #   FILE_NAME(tmp, @1);
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_class_new_2(p):
    '''class_new : K_new hierarchy_identifier '''
    print(p)
    # { PEIdent*tmpi = new PEIdent(*$2);
    #   FILE_NAME(tmpi, @2);
    #   PENewCopy*tmp = new PENewCopy(tmpi);
    #   FILE_NAME(tmp, @1);
    #   delete $2;
    #   $$ = tmp;
    #       }
()
def p_class_new_3(p):
    '''class_new : K_new '''
    print(p)
    # { PENewClass*tmp = new PENewClass;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_concurrent_assertion_item_1(p):
    '''concurrent_assertion_item : block_identifier_opt K_assert K_property '(' property_spec ')' statement_or_null '''
    print(p)
    # { /* */
    #   if (gn_assertions_flag) {
    #         yyerror(@2, "sorry: concurrent_assertion_item not supported."
    #                 " Try -gno-assertion to turn this message off.");
    #   }
    #       }
()
def p_concurrent_assertion_item_2(p):
    '''concurrent_assertion_item : block_identifier_opt K_assert K_property '(' error ')' statement_or_null '''
    print(p)
    # { yyerrok;
    #         yyerror(@2, "error: Error in property_spec of concurrent assertion item.");
    #       }
()
def p_constraint_block_item_1(p):
    '''constraint_block_item : constraint_expression '''
    print(p)
()
def p_constraint_block_item_list_1(p):
    '''constraint_block_item_list : constraint_block_item_list constraint_block_item '''
    print(p)
()
def p_constraint_block_item_list_2(p):
    '''constraint_block_item_list : constraint_block_item '''
    print(p)
()
def p_constraint_block_item_list_opt_1(p):
    '''constraint_block_item_list_opt :  '''
    print(p)
()
def p_constraint_block_item_list_opt_2(p):
    '''constraint_block_item_list_opt : constraint_block_item_list '''
    print(p)
()
def p_constraint_declaration_1(p):
    '''constraint_declaration : K_static_opt K_constraint IDENTIFIER '{' constraint_block_item_list_opt '}' '''
    print(p)
    # { yyerror(@2, "sorry: Constraint declarations not supported."); }
()
def p_constraint_declaration_2(p):
    '''constraint_declaration : K_static_opt K_constraint IDENTIFIER '{' error '}' '''
    print(p)
    # { yyerror(@4, "error: Errors in the constraint block item list."); }
()
def p_constraint_expression_1(p):
    '''constraint_expression : expression ';' '''
    print(p)
()
def p_constraint_expression_2(p):
    '''constraint_expression : expression K_dist '{' '}' ';' '''
    print(p)
()
def p_constraint_expression_3(p):
    '''constraint_expression : expression K_TRIGGER constraint_set '''
    print(p)
()
def p_constraint_expression_4(p):
    '''constraint_expression : K_if '(' expression ')' constraint_set %prec less_than_K_else '''
    print(p)
()
def p_constraint_expression_5(p):
    '''constraint_expression : K_if '(' expression ')' constraint_set K_else constraint_set '''
    print(p)
()
def p_constraint_expression_6(p):
    '''constraint_expression : K_foreach '(' IDENTIFIER '[' loop_variables ']' ')' constraint_set '''
    print(p)
()
def p_constraint_expression_list_1(p):
    '''constraint_expression_list : constraint_expression_list constraint_expression '''
    print(p)
()
def p_constraint_expression_list_2(p):
    '''constraint_expression_list : constraint_expression '''
    print(p)
()
def p_constraint_prototype_1(p):
    '''constraint_prototype : K_static_opt K_constraint IDENTIFIER ';' '''
    print(p)
    # { yyerror(@2, "sorry: Constraint prototypes not supported."); }
()
def p_constraint_set_1(p):
    '''constraint_set : constraint_expression '''
    print(p)
()
def p_constraint_set_2(p):
    '''constraint_set : '{' constraint_expression_list '}' '''
    print(p)
()
def p_data_declaration_1(p):
    '''data_declaration : attribute_list_opt data_type_or_implicit list_of_variable_decl_assignments ';' '''
    print(p)
    # { data_type_t*data_type = $2;
    #   if (data_type == 0) {
    #         data_type = new vector_type_t(IVL_VT_LOGIC, false, 0);
    #         FILE_NAME(data_type, @2);
    #   }
    #   pform_makewire(@2, 0, str_strength, $3, NetNet::IMPLICIT_REG, data_type);
    #       }
()
def p_data_type_1(p):
    '''data_type : integer_vector_type unsigned_signed_opt dimensions_opt '''
    print(p)
    # { ivl_variable_type_t use_vtype = $1;
    #   bool reg_flag = false;
    #   if (use_vtype == IVL_VT_NO_TYPE) {
    #         use_vtype = IVL_VT_LOGIC;
    #         reg_flag = true;
    #   }
    #   vector_type_t*tmp = new vector_type_t(use_vtype, $2, $3);
    #   tmp->reg_flag = reg_flag;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_data_type_2(p):
    '''data_type : non_integer_type '''
    print(p)
    # { real_type_t*tmp = new real_type_t($1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_data_type_3(p):
    '''data_type : struct_data_type '''
    print(p)
    # { if (!$1->packed_flag) {
    #         yyerror(@1, "sorry: Unpacked structs not supported.");
    #   }
    #   $$ = $1;
    #       }
()
def p_data_type_4(p):
    '''data_type : enum_data_type '''
    print(p)
    # { $$ = $1; }
()
def p_data_type_5(p):
    '''data_type : atom2_type signed_unsigned_opt '''
    print(p)
    # { atom2_type_t*tmp = new atom2_type_t($1, $2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_data_type_6(p):
    '''data_type : K_integer signed_unsigned_opt '''
    print(p)
    # { list<pform_range_t>*pd = make_range_from_width(integer_width);
    #   vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, $2, pd);
    #   tmp->reg_flag = true;
    #   tmp->integer_flag = true;
    #   $$ = tmp;
    #       }
()
def p_data_type_7(p):
    '''data_type : K_time '''
    print(p)
    # { list<pform_range_t>*pd = make_range_from_width(64);
    #   vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, false, pd);
    #   tmp->reg_flag = !gn_system_verilog();
    #   $$ = tmp;
    #       }
()
def p_data_type_8(p):
    '''data_type : TYPE_IDENTIFIER dimensions_opt '''
    print(p)
    # { if ($2) {
    #         parray_type_t*tmp = new parray_type_t($1.type, $2);
    #         FILE_NAME(tmp, @1);
    #         $$ = tmp;
    #   } else $$ = $1.type;
    #   delete[]$1.text;
    #       }
()
def p_data_type_9(p):
    '''data_type : PACKAGE_IDENTIFIER K_SCOPE_RES _embed0_data_type TYPE_IDENTIFIER '''
    print(p)
    # { lex_in_package_scope(0);
    #   $$ = $4.type;
    #   delete[]$4.text;
    #       }
()
def p_data_type_10(p):
    '''data_type : K_string '''
    print(p)
    # { string_type_t*tmp = new string_type_t;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p__embed0_data_type(p):
    '''_embed0_data_type : '''
    # { lex_in_package_scope($1); }
()
def p_data_type_or_implicit_1(p):
    '''data_type_or_implicit : data_type '''
    print(p)
    # { $$ = $1; }
()
def p_data_type_or_implicit_2(p):
    '''data_type_or_implicit : signing dimensions_opt '''
    print(p)
    # { vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, $1, $2);
    #   tmp->implicit_flag = true;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_data_type_or_implicit_3(p):
    '''data_type_or_implicit : dimensions '''
    print(p)
    # { vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, false, $1);
    #   tmp->implicit_flag = true;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_data_type_or_implicit_4(p):
    '''data_type_or_implicit :  '''
    print(p)
    # { $$ = 0; }
()
def p_data_type_or_implicit_or_void_1(p):
    '''data_type_or_implicit_or_void : data_type_or_implicit '''
    print(p)
    # { $$ = $1; }
()
def p_data_type_or_implicit_or_void_2(p):
    '''data_type_or_implicit_or_void : K_void '''
    print(p)
    # { void_type_t*tmp = new void_type_t;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_description_1(p):
    '''description : module '''
    print(p)
()
def p_description_2(p):
    '''description : udp_primitive '''
    print(p)
()
def p_description_3(p):
    '''description : config_declaration '''
    print(p)
()
def p_description_4(p):
    '''description : nature_declaration '''
    print(p)
()
def p_description_5(p):
    '''description : package_declaration '''
    print(p)
()
def p_description_6(p):
    '''description : discipline_declaration '''
    print(p)
()
def p_description_7(p):
    '''description : package_item '''
    print(p)
()
def p_description_8(p):
    '''description : KK_attribute '(' IDENTIFIER ',' STRING ',' STRING ')' '''
    print(p)
    # { perm_string tmp3 = lex_strings.make($3);
    #   pform_set_type_attrib(tmp3, $5, $7);
    #   delete[] $3;
    #   delete[] $5;
    #       }
()
def p_description_list_1(p):
    '''description_list : description '''
    print(p)
()
def p_description_list_2(p):
    '''description_list : description_list description '''
    print(p)
()
def p_endnew_opt_1(p):
    '''endnew_opt : ':' K_new '''
    print(p)
()
def p_endnew_opt_2(p):
    '''endnew_opt :  '''
    print(p)
()
def p_dynamic_array_new_1(p):
    '''dynamic_array_new : K_new '[' expression ']' '''
    print(p)
    # { $$ = new PENewArray($3, 0);
    #   FILE_NAME($$, @1);
    #       }
()
def p_dynamic_array_new_2(p):
    '''dynamic_array_new : K_new '[' expression ']' '(' expression ')' '''
    print(p)
    # { $$ = new PENewArray($3, $6);
    #   FILE_NAME($$, @1);
    #       }
()
def p_for_step_1(p):
    '''for_step : lpvalue '=' expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1,$3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_for_step_2(p):
    '''for_step : inc_or_dec_expression '''
    print(p)
    # { $$ = pform_compressed_assign_from_inc_dec(@1, $1); }
()
def p_for_step_3(p):
    '''for_step : compressed_statement '''
    print(p)
    # { $$ = $1; }
()
def p_function_declaration_1(p):
    '''function_declaration : K_function lifetime_opt data_type_or_implicit_or_void IDENTIFIER ';' _embed0_function_declaration function_item_list statement_or_null_list_opt K_endfunction _embed1_function_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name.
    #   if ($11) {
    #         if (strcmp($4,$11) != 0) {
    #               yyerror(@11, "error: End label doesn't match "
    #                            "function name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@11, "error: Function end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$11;
    #   }
    #   delete[]$4;
    #       }
()
def p_function_declaration_2(p):
    '''function_declaration : K_function lifetime_opt data_type_or_implicit_or_void IDENTIFIER _embed2_function_declaration '(' tf_port_list_opt ')' ';' block_item_decls_opt statement_or_null_list_opt K_endfunction _embed3_function_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name.
    #   if ($14) {
    #         if (strcmp($4,$14) != 0) {
    #               yyerror(@14, "error: End label doesn't match "
    #                            "function name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@14, "error: Function end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$14;
    #   }
    #   delete[]$4;
    #       }
()
def p_function_declaration_3(p):
    '''function_declaration : K_function lifetime_opt data_type_or_implicit_or_void IDENTIFIER error K_endfunction _embed4_function_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name.
    #   if ($8) {
    #         if (strcmp($4,$8) != 0) {
    #               yyerror(@8, "error: End label doesn't match function name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@8, "error: Function end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$8;
    #   }
    #   delete[]$4;
    #       }
()
def p__embed0_function_declaration(p):
    '''_embed0_function_declaration : '''
    # { assert(current_function == 0);
    #   current_function = pform_push_function_scope(@1, $4, $2);
    #       }
()
def p__embed1_function_declaration(p):
    '''_embed1_function_declaration : '''
    # { current_function->set_ports($7);
    #   current_function->set_return($3);
    #   current_function_set_statement($8? @8 : @4, $8);
    #   pform_set_this_class(@4, current_function);
    #   pform_pop_scope();
    #   current_function = 0;
    #       }
()
def p__embed2_function_declaration(p):
    '''_embed2_function_declaration : '''
    # { assert(current_function == 0);
    #   current_function = pform_push_function_scope(@1, $4, $2);
    #       }
()
def p__embed3_function_declaration(p):
    '''_embed3_function_declaration : '''
    # { current_function->set_ports($7);
    #   current_function->set_return($3);
    #   current_function_set_statement($11? @11 : @4, $11);
    #   pform_set_this_class(@4, current_function);
    #   pform_pop_scope();
    #   current_function = 0;
    #   if ($7==0 && !gn_system_verilog()) {
    #         yyerror(@4, "error: Empty parenthesis syntax requires SystemVerilog.");
    #   }
    #       }
()
def p__embed4_function_declaration(p):
    '''_embed4_function_declaration : '''
    # { /* */
    #   if (current_function) {
    #         pform_pop_scope();
    #         current_function = 0;
    #   }
    #   assert(current_function == 0);
    #   yyerror(@1, "error: Syntax error defining function.");
    #   yyerrok;
    #       }
()
def p_import_export_1(p):
    '''import_export : K_import '''
    print(p)
    # { $$ = true; }
()
def p_import_export_2(p):
    '''import_export : K_export '''
    print(p)
    # { $$ = false; }
()
def p_implicit_class_handle_1(p):
    '''implicit_class_handle : K_this '''
    print(p)
    # { $$ = pform_create_this(); }
()
def p_implicit_class_handle_2(p):
    '''implicit_class_handle : K_super '''
    print(p)
    # { $$ = pform_create_super(); }
()
def p_inc_or_dec_expression_1(p):
    '''inc_or_dec_expression : K_INCR lpvalue %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('I', $2);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_inc_or_dec_expression_2(p):
    '''inc_or_dec_expression : lpvalue K_INCR %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('i', $1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_inc_or_dec_expression_3(p):
    '''inc_or_dec_expression : K_DECR lpvalue %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('D', $2);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_inc_or_dec_expression_4(p):
    '''inc_or_dec_expression : lpvalue K_DECR %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('d', $1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_inside_expression_1(p):
    '''inside_expression : expression K_inside '{' open_range_list '}' '''
    print(p)
    # { yyerror(@2, "sorry: \"inside\" expressions not supported yet.");
    #   $$ = 0;
    #       }
()
def p_integer_vector_type_1(p):
    '''integer_vector_type : K_reg '''
    print(p)
    # { $$ = IVL_VT_NO_TYPE; }
()
def p_integer_vector_type_2(p):
    '''integer_vector_type : K_bit '''
    print(p)
    # { $$ = IVL_VT_BOOL; }
()
def p_integer_vector_type_3(p):
    '''integer_vector_type : K_logic '''
    print(p)
    # { $$ = IVL_VT_LOGIC; }
()
def p_integer_vector_type_4(p):
    '''integer_vector_type : K_bool '''
    print(p)
    # { $$ = IVL_VT_BOOL; }
()
def p_join_keyword_1(p):
    '''join_keyword : K_join '''
    print(p)
    # { $$ = PBlock::BL_PAR; }
()
def p_join_keyword_2(p):
    '''join_keyword : K_join_none '''
    print(p)
    # { $$ = PBlock::BL_JOIN_NONE; }
()
def p_join_keyword_3(p):
    '''join_keyword : K_join_any '''
    print(p)
    # { $$ = PBlock::BL_JOIN_ANY; }
()
def p_jump_statement_1(p):
    '''jump_statement : K_break ';' '''
    print(p)
    # { yyerror(@1, "sorry: break statements not supported.");
    #   $$ = 0;
    #       }
()
def p_jump_statement_2(p):
    '''jump_statement : K_return ';' '''
    print(p)
    # { PReturn*tmp = new PReturn(0);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_jump_statement_3(p):
    '''jump_statement : K_return expression ';' '''
    print(p)
    # { PReturn*tmp = new PReturn($2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_lifetime_1(p):
    '''lifetime : K_automatic '''
    print(p)
    # { $$ = LexicalScope::AUTOMATIC; }
()
def p_lifetime_2(p):
    '''lifetime : K_static '''
    print(p)
    # { $$ = LexicalScope::STATIC; }
()
def p_lifetime_opt_1(p):
    '''lifetime_opt : lifetime '''
    print(p)
    # { $$ = $1; }
()
def p_lifetime_opt_2(p):
    '''lifetime_opt :  '''
    print(p)
    # { $$ = LexicalScope::INHERITED; }
()
def p_loop_statement_1(p):
    '''loop_statement : K_for '(' lpvalue '=' expression ';' expression ';' for_step ')' statement_or_null '''
    print(p)
    # { PForStatement*tmp = new PForStatement($3, $5, $7, $9, $11);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_loop_statement_2(p):
    '''loop_statement : K_for '(' data_type IDENTIFIER '=' expression ';' expression ';' for_step ')' _embed0_loop_statement statement_or_null '''
    print(p)
    # { pform_name_t tmp_hident;
    #   tmp_hident.push_back(name_component_t(lex_strings.make($4)));
    # 
    #   PEIdent*tmp_ident = pform_new_ident(tmp_hident);
    #   FILE_NAME(tmp_ident, @4);
    # 
    #   PForStatement*tmp_for = new PForStatement(tmp_ident, $6, $8, $10, $13);
    #   FILE_NAME(tmp_for, @1);
    # 
    #   pform_pop_scope();
    #   vector<Statement*>tmp_for_list (1);
    #   tmp_for_list[0] = tmp_for;
    #   PBlock*tmp_blk = current_block_stack.top();
    #   current_block_stack.pop();
    #   tmp_blk->set_statement(tmp_for_list);
    #   $$ = tmp_blk;
    #   delete[]$4;
    #       }
()
def p_loop_statement_3(p):
    '''loop_statement : K_forever statement_or_null '''
    print(p)
    # { PForever*tmp = new PForever($2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_loop_statement_4(p):
    '''loop_statement : K_repeat '(' expression ')' statement_or_null '''
    print(p)
    # { PRepeat*tmp = new PRepeat($3, $5);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_loop_statement_5(p):
    '''loop_statement : K_while '(' expression ')' statement_or_null '''
    print(p)
    # { PWhile*tmp = new PWhile($3, $5);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_loop_statement_6(p):
    '''loop_statement : K_do statement_or_null K_while '(' expression ')' ';' '''
    print(p)
    # { PDoWhile*tmp = new PDoWhile($5, $2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_loop_statement_7(p):
    '''loop_statement : K_foreach '(' IDENTIFIER '[' loop_variables ']' ')' _embed1_loop_statement statement_or_null '''
    print(p)
    # { PForeach*tmp_for = pform_make_foreach(@1, $3, $5, $9);
    # 
    #   pform_pop_scope();
    #   vector<Statement*>tmp_for_list(1);
    #   tmp_for_list[0] = tmp_for;
    #   PBlock*tmp_blk = current_block_stack.top();
    #   current_block_stack.pop();
    #   tmp_blk->set_statement(tmp_for_list);
    #   $$ = tmp_blk;
    #       }
()
def p_loop_statement_8(p):
    '''loop_statement : K_for '(' lpvalue '=' expression ';' expression ';' error ')' statement_or_null '''
    print(p)
    # { $$ = 0;
    #   yyerror(@1, "error: Error in for loop step assignment.");
    #       }
()
def p_loop_statement_9(p):
    '''loop_statement : K_for '(' lpvalue '=' expression ';' error ';' for_step ')' statement_or_null '''
    print(p)
    # { $$ = 0;
    #   yyerror(@1, "error: Error in for loop condition expression.");
    #       }
()
def p_loop_statement_10(p):
    '''loop_statement : K_for '(' error ')' statement_or_null '''
    print(p)
    # { $$ = 0;
    #   yyerror(@1, "error: Incomprehensible for loop.");
    #       }
()
def p_loop_statement_11(p):
    '''loop_statement : K_while '(' error ')' statement_or_null '''
    print(p)
    # { $$ = 0;
    #   yyerror(@1, "error: Error in while loop condition.");
    #       }
()
def p_loop_statement_12(p):
    '''loop_statement : K_do statement_or_null K_while '(' error ')' ';' '''
    print(p)
    # { $$ = 0;
    #   yyerror(@1, "error: Error in do/while loop condition.");
    #       }
()
def p_loop_statement_13(p):
    '''loop_statement : K_foreach '(' IDENTIFIER '[' error ']' ')' statement_or_null '''
    print(p)
    # { $$ = 0;
    #         yyerror(@4, "error: Errors in foreach loop variables list.");
    #       }
()
def p__embed0_loop_statement(p):
    '''_embed0_loop_statement : '''
    # { static unsigned for_counter = 0;
    #   char for_block_name [64];
    #   snprintf(for_block_name, sizeof for_block_name, "$ivl_for_loop%u", for_counter);
    #   for_counter += 1;
    #   PBlock*tmp = pform_push_block_scope(for_block_name, PBlock::BL_SEQ);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    # 
    #   list<decl_assignment_t*>assign_list;
    #   decl_assignment_t*tmp_assign = new decl_assignment_t;
    #   tmp_assign->name = lex_strings.make($4);
    #   assign_list.push_back(tmp_assign);
    #   pform_makewire(@4, 0, str_strength, &assign_list, NetNet::REG, $3);
    #       }
()
def p__embed1_loop_statement(p):
    '''_embed1_loop_statement : '''
    # { static unsigned foreach_counter = 0;
    #   char for_block_name[64];
    #   snprintf(for_block_name, sizeof for_block_name, "$ivl_foreach%u", foreach_counter);
    #   foreach_counter += 1;
    # 
    #   PBlock*tmp = pform_push_block_scope(for_block_name, PBlock::BL_SEQ);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    # 
    #   pform_make_foreach_declarations(@1, $5);
    #       }
()
def p_list_of_variable_decl_assignments_1(p):
    '''list_of_variable_decl_assignments : variable_decl_assignment '''
    print(p)
    # { list<decl_assignment_t*>*tmp = new list<decl_assignment_t*>;
    #   tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_list_of_variable_decl_assignments_2(p):
    '''list_of_variable_decl_assignments : list_of_variable_decl_assignments ',' variable_decl_assignment '''
    print(p)
    # { list<decl_assignment_t*>*tmp = $1;
    #   tmp->push_back($3);
    #   $$ = tmp;
    #       }
()
def p_variable_decl_assignment_1(p):
    '''variable_decl_assignment : IDENTIFIER dimensions_opt '''
    print(p)
    # { decl_assignment_t*tmp = new decl_assignment_t;
    #   tmp->name = lex_strings.make($1);
    #   if ($2) {
    #         tmp->index = *$2;
    #         delete $2;
    #   }
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_variable_decl_assignment_2(p):
    '''variable_decl_assignment : IDENTIFIER '=' expression '''
    print(p)
    # { decl_assignment_t*tmp = new decl_assignment_t;
    #   tmp->name = lex_strings.make($1);
    #   tmp->expr .reset($3);
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_variable_decl_assignment_3(p):
    '''variable_decl_assignment : IDENTIFIER '=' K_new '(' ')' '''
    print(p)
    # { decl_assignment_t*tmp = new decl_assignment_t;
    #   tmp->name = lex_strings.make($1);
    #   PENewClass*expr = new PENewClass;
    #   FILE_NAME(expr, @3);
    #   tmp->expr .reset(expr);
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_loop_variables_1(p):
    '''loop_variables : loop_variables ',' IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #   tmp->push_back(lex_strings.make($3));
    #   delete[]$3;
    #   $$ = tmp;
    #       }
()
def p_loop_variables_2(p):
    '''loop_variables : IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #   tmp->push_back(lex_strings.make($1));
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_method_qualifier_1(p):
    '''method_qualifier : K_virtual '''
    print(p)
()
def p_method_qualifier_2(p):
    '''method_qualifier : class_item_qualifier '''
    print(p)
()
def p_method_qualifier_opt_1(p):
    '''method_qualifier_opt : method_qualifier '''
    print(p)
()
def p_method_qualifier_opt_2(p):
    '''method_qualifier_opt :  '''
    print(p)
()
def p_modport_declaration_1(p):
    '''modport_declaration : K_modport _embed0_modport_declaration modport_item_list ';' '''
    print(p)
()
def p__embed0_modport_declaration(p):
    '''_embed0_modport_declaration : '''
    # { if (!pform_in_interface())
    #         yyerror(@1, "error: modport declarations are only allowed "
    #                     "in interfaces.");
    #       }
()
def p_modport_item_list_1(p):
    '''modport_item_list : modport_item '''
    print(p)
()
def p_modport_item_list_2(p):
    '''modport_item_list : modport_item_list ',' modport_item '''
    print(p)
()
def p_modport_item_1(p):
    '''modport_item : IDENTIFIER _embed0_modport_item '(' modport_ports_list ')' '''
    print(p)
    # { pform_end_modport_item(@1); }
()
def p__embed0_modport_item(p):
    '''_embed0_modport_item : '''
    # { pform_start_modport_item(@1, $1); }
()
def p_modport_ports_list_1(p):
    '''modport_ports_list : modport_ports_declaration '''
    print(p)
()
def p_modport_ports_list_2(p):
    '''modport_ports_list : modport_ports_list ',' modport_ports_declaration '''
    print(p)
()
def p_modport_ports_list_3(p):
    '''modport_ports_list : modport_ports_list ',' modport_simple_port '''
    print(p)
    # { if (last_modport_port.type == MP_SIMPLE) {
    #         pform_add_modport_port(@3, last_modport_port.direction,
    #                                $3->name, $3->parm);
    #   } else {
    #         yyerror(@3, "error: modport expression not allowed here.");
    #   }
    #   delete $3;
    #       }
()
def p_modport_ports_list_4(p):
    '''modport_ports_list : modport_ports_list ',' modport_tf_port '''
    print(p)
    # { if (last_modport_port.type != MP_TF)
    #         yyerror(@3, "error: task/function declaration not allowed here.");
    #       }
()
def p_modport_ports_list_5(p):
    '''modport_ports_list : modport_ports_list ',' IDENTIFIER '''
    print(p)
    # { if (last_modport_port.type == MP_SIMPLE) {
    #         pform_add_modport_port(@3, last_modport_port.direction,
    #                                lex_strings.make($3), 0);
    #   } else if (last_modport_port.type != MP_TF) {
    #         yyerror(@3, "error: list of identifiers not allowed here.");
    #   }
    #   delete[] $3;
    #       }
()
def p_modport_ports_list_6(p):
    '''modport_ports_list : modport_ports_list ',' '''
    print(p)
    # { yyerror(@2, "error: NULL port declarations are not allowed"); }
()
def p_modport_ports_declaration_1(p):
    '''modport_ports_declaration : attribute_list_opt port_direction IDENTIFIER '''
    print(p)
    # { last_modport_port.type = MP_SIMPLE;
    #   last_modport_port.direction = $2;
    #   pform_add_modport_port(@3, $2, lex_strings.make($3), 0);
    #   delete[] $3;
    #   delete $1;
    #       }
()
def p_modport_ports_declaration_2(p):
    '''modport_ports_declaration : attribute_list_opt port_direction modport_simple_port '''
    print(p)
    # { last_modport_port.type = MP_SIMPLE;
    #   last_modport_port.direction = $2;
    #   pform_add_modport_port(@3, $2, $3->name, $3->parm);
    #   delete $3;
    #   delete $1;
    #       }
()
def p_modport_ports_declaration_3(p):
    '''modport_ports_declaration : attribute_list_opt import_export IDENTIFIER '''
    print(p)
    # { last_modport_port.type = MP_TF;
    #   last_modport_port.is_import = $2;
    #   yyerror(@3, "sorry: modport task/function ports are not yet supported.");
    #   delete[] $3;
    #   delete $1;
    #       }
()
def p_modport_ports_declaration_4(p):
    '''modport_ports_declaration : attribute_list_opt import_export modport_tf_port '''
    print(p)
    # { last_modport_port.type = MP_TF;
    #   last_modport_port.is_import = $2;
    #   yyerror(@3, "sorry: modport task/function ports are not yet supported.");
    #   delete $1;
    #       }
()
def p_modport_ports_declaration_5(p):
    '''modport_ports_declaration : attribute_list_opt K_clocking IDENTIFIER '''
    print(p)
    # { last_modport_port.type = MP_CLOCKING;
    #   last_modport_port.direction = NetNet::NOT_A_PORT;
    #   yyerror(@3, "sorry: modport clocking declaration is not yet supported.");
    #   delete[] $3;
    #   delete $1;
    #       }
()
def p_modport_simple_port_1(p):
    '''modport_simple_port : '.' IDENTIFIER '(' expression ')' '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #   tmp->name = lex_strings.make($2);
    #   tmp->parm = $4;
    #   delete[]$2;
    #   $$ = tmp;
    #       }
()
def p_modport_tf_port_1(p):
    '''modport_tf_port : K_task IDENTIFIER '''
    print(p)
()
def p_modport_tf_port_2(p):
    '''modport_tf_port : K_task IDENTIFIER '(' tf_port_list_opt ')' '''
    print(p)
()
def p_modport_tf_port_3(p):
    '''modport_tf_port : K_function data_type_or_implicit_or_void IDENTIFIER '''
    print(p)
()
def p_modport_tf_port_4(p):
    '''modport_tf_port : K_function data_type_or_implicit_or_void IDENTIFIER '(' tf_port_list_opt ')' '''
    print(p)
()
def p_non_integer_type_1(p):
    '''non_integer_type : K_real '''
    print(p)
    # { $$ = real_type_t::REAL; }
()
def p_non_integer_type_2(p):
    '''non_integer_type : K_realtime '''
    print(p)
    # { $$ = real_type_t::REAL; }
()
def p_non_integer_type_3(p):
    '''non_integer_type : K_shortreal '''
    print(p)
    # { $$ = real_type_t::SHORTREAL; }
()
def p_number_1(p):
    '''number : BASED_NUMBER '''
    print(p)
    # { $$ = $1; based_size = 0;}
()
def p_number_2(p):
    '''number : DEC_NUMBER '''
    print(p)
    # { $$ = $1; based_size = 0;}
()
def p_number_3(p):
    '''number : DEC_NUMBER BASED_NUMBER '''
    print(p)
    # { $$ = pform_verinum_with_size($1,$2, @2.text, @2.first_line);
    #          based_size = 0; }
()
def p_number_4(p):
    '''number : UNBASED_NUMBER '''
    print(p)
    # { $$ = $1; based_size = 0;}
()
def p_number_5(p):
    '''number : DEC_NUMBER UNBASED_NUMBER '''
    print(p)
    # { yyerror(@1, "error: Unbased SystemVerilog literal cannot have "
    #                      "a size.");
    #          $$ = $1; based_size = 0;}
()
def p_open_range_list_1(p):
    '''open_range_list : open_range_list ',' value_range '''
    print(p)
()
def p_open_range_list_2(p):
    '''open_range_list : value_range '''
    print(p)
()
def p_package_declaration_1(p):
    '''package_declaration : K_package lifetime_opt IDENTIFIER ';' _embed0_package_declaration timeunits_declaration_opt _embed1_package_declaration package_item_list_opt K_endpackage endlabel_opt '''
    print(p)
    # { pform_end_package_declaration(@1);
    #   // If an end label is present make sure it match the package name.
    #   if ($10) {
    #         if (strcmp($3,$10) != 0) {
    #               yyerror(@10, "error: End label doesn't match package name");
    #         }
    #         delete[]$10;
    #   }
    #   delete[]$3;
    #       }
()
def p__embed0_package_declaration(p):
    '''_embed0_package_declaration : '''
    # { pform_start_package_declaration(@1, $3, $2); }
()
def p__embed1_package_declaration(p):
    '''_embed1_package_declaration : '''
    # { pform_set_scope_timescale(@1); }
()
def p_module_package_import_list_opt_1(p):
    '''module_package_import_list_opt :  '''
    print(p)
()
def p_module_package_import_list_opt_2(p):
    '''module_package_import_list_opt : package_import_list '''
    print(p)
()
def p_package_import_list_1(p):
    '''package_import_list : package_import_declaration '''
    print(p)
()
def p_package_import_list_2(p):
    '''package_import_list : package_import_list package_import_declaration '''
    print(p)
()
def p_package_import_declaration_1(p):
    '''package_import_declaration : K_import package_import_item_list ';' '''
    print(p)
    # { }
()
def p_package_import_item_1(p):
    '''package_import_item : PACKAGE_IDENTIFIER K_SCOPE_RES IDENTIFIER '''
    print(p)
    # { pform_package_import(@2, $1, $3);
    #   delete[]$3;
    #       }
()
def p_package_import_item_2(p):
    '''package_import_item : PACKAGE_IDENTIFIER K_SCOPE_RES '*' '''
    print(p)
    # { pform_package_import(@2, $1, 0);
    #       }
()
def p_package_import_item_list_1(p):
    '''package_import_item_list : package_import_item_list ',' package_import_item '''
    print(p)
()
def p_package_import_item_list_2(p):
    '''package_import_item_list : package_import_item '''
    print(p)
()
def p_package_item_1(p):
    '''package_item : timeunits_declaration '''
    print(p)
()
def p_package_item_2(p):
    '''package_item : K_parameter param_type parameter_assign_list ';' '''
    print(p)
()
def p_package_item_3(p):
    '''package_item : K_localparam param_type localparam_assign_list ';' '''
    print(p)
()
def p_package_item_4(p):
    '''package_item : type_declaration '''
    print(p)
()
def p_package_item_5(p):
    '''package_item : function_declaration '''
    print(p)
()
def p_package_item_6(p):
    '''package_item : task_declaration '''
    print(p)
()
def p_package_item_7(p):
    '''package_item : data_declaration '''
    print(p)
()
def p_package_item_8(p):
    '''package_item : class_declaration '''
    print(p)
()
def p_package_item_list_1(p):
    '''package_item_list : package_item_list package_item '''
    print(p)
()
def p_package_item_list_2(p):
    '''package_item_list : package_item '''
    print(p)
()
def p_package_item_list_opt_1(p):
    '''package_item_list_opt : package_item_list '''
    print(p)
()
def p_package_item_list_opt_2(p):
    '''package_item_list_opt :  '''
    print(p)
()
def p_port_direction_1(p):
    '''port_direction : K_input '''
    print(p)
    # { $$ = NetNet::PINPUT; }
()
def p_port_direction_2(p):
    '''port_direction : K_output '''
    print(p)
    # { $$ = NetNet::POUTPUT; }
()
def p_port_direction_3(p):
    '''port_direction : K_inout '''
    print(p)
    # { $$ = NetNet::PINOUT; }
()
def p_port_direction_4(p):
    '''port_direction : K_ref '''
    print(p)
    # { $$ = NetNet::PREF;
    #         if (!gn_system_verilog()) {
    #         yyerror(@1, "error: Reference ports (ref) require SystemVerilog.");
    #         $$ = NetNet::PINPUT;
    #   }
    #       }
()
def p_port_direction_opt_1(p):
    '''port_direction_opt : port_direction '''
    print(p)
    # { $$ = $1; }
()
def p_port_direction_opt_2(p):
    '''port_direction_opt :  '''
    print(p)
    # { $$ = NetNet::PIMPLICIT; }
()
def p_property_expr_1(p):
    '''property_expr : expression '''
    print(p)
()
def p_procedural_assertion_statement_1(p):
    '''procedural_assertion_statement : K_assert '(' expression ')' statement %prec less_than_K_else '''
    print(p)
    # { yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
    #   $$ = 0;
    #       }
()
def p_procedural_assertion_statement_2(p):
    '''procedural_assertion_statement : K_assert '(' expression ')' K_else statement '''
    print(p)
    # { yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
    #   $$ = 0;
    #       }
()
def p_procedural_assertion_statement_3(p):
    '''procedural_assertion_statement : K_assert '(' expression ')' statement K_else statement '''
    print(p)
    # { yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
    #   $$ = 0;
    #       }
()
def p_property_qualifier_1(p):
    '''property_qualifier : class_item_qualifier '''
    print(p)
()
def p_property_qualifier_2(p):
    '''property_qualifier : random_qualifier '''
    print(p)
()
def p_property_qualifier_opt_1(p):
    '''property_qualifier_opt : property_qualifier_list '''
    print(p)
    # { $$ = $1; }
()
def p_property_qualifier_opt_2(p):
    '''property_qualifier_opt :  '''
    print(p)
    # { $$ = property_qualifier_t::make_none(); }
()
def p_property_qualifier_list_1(p):
    '''property_qualifier_list : property_qualifier_list property_qualifier '''
    print(p)
    # { $$ = $1 | $2; }
()
def p_property_qualifier_list_2(p):
    '''property_qualifier_list : property_qualifier '''
    print(p)
    # { $$ = $1; }
()
def p_property_spec_1(p):
    '''property_spec : clocking_event_opt property_spec_disable_iff_opt property_expr '''
    print(p)
()
def p_property_spec_disable_iff_opt_1(p):
    '''property_spec_disable_iff_opt : K_disable K_iff '(' expression ')' '''
    print(p)
()
def p_property_spec_disable_iff_opt_2(p):
    '''property_spec_disable_iff_opt :  '''
    print(p)
()
def p_random_qualifier_1(p):
    '''random_qualifier : K_rand '''
    print(p)
    # { $$ = property_qualifier_t::make_rand(); }
()
def p_random_qualifier_2(p):
    '''random_qualifier : K_randc '''
    print(p)
    # { $$ = property_qualifier_t::make_randc(); }
()
def p_real_or_realtime_1(p):
    '''real_or_realtime : K_real '''
    print(p)
()
def p_real_or_realtime_2(p):
    '''real_or_realtime : K_realtime '''
    print(p)
()
def p_signing_1(p):
    '''signing : K_signed '''
    print(p)
    # { $$ = true; }
()
def p_signing_2(p):
    '''signing : K_unsigned '''
    print(p)
    # { $$ = false; }
()
def p_simple_type_or_string_1(p):
    '''simple_type_or_string : integer_vector_type '''
    print(p)
    # { ivl_variable_type_t use_vtype = $1;
    #   bool reg_flag = false;
    #   if (use_vtype == IVL_VT_NO_TYPE) {
    #         use_vtype = IVL_VT_LOGIC;
    #         reg_flag = true;
    #   }
    #   vector_type_t*tmp = new vector_type_t(use_vtype, false, 0);
    #   tmp->reg_flag = reg_flag;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_simple_type_or_string_2(p):
    '''simple_type_or_string : non_integer_type '''
    print(p)
    # { real_type_t*tmp = new real_type_t($1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_simple_type_or_string_3(p):
    '''simple_type_or_string : atom2_type '''
    print(p)
    # { atom2_type_t*tmp = new atom2_type_t($1, true);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_simple_type_or_string_4(p):
    '''simple_type_or_string : K_integer '''
    print(p)
    # { list<pform_range_t>*pd = make_range_from_width(integer_width);
    #   vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, true, pd);
    #   tmp->reg_flag = true;
    #   tmp->integer_flag = true;
    #   $$ = tmp;
    #       }
()
def p_simple_type_or_string_5(p):
    '''simple_type_or_string : K_time '''
    print(p)
    # { list<pform_range_t>*pd = make_range_from_width(64);
    #   vector_type_t*tmp = new vector_type_t(IVL_VT_LOGIC, false, pd);
    #   tmp->reg_flag = !gn_system_verilog();
    #   $$ = tmp;
    #       }
()
def p_simple_type_or_string_6(p):
    '''simple_type_or_string : TYPE_IDENTIFIER '''
    print(p)
    # { $$ = $1.type;
    #   delete[]$1.text;
    #       }
()
def p_simple_type_or_string_7(p):
    '''simple_type_or_string : PACKAGE_IDENTIFIER K_SCOPE_RES _embed0_simple_type_or_string TYPE_IDENTIFIER '''
    print(p)
    # { lex_in_package_scope(0);
    #   $$ = $4.type;
    #   delete[]$4.text;
    #       }
()
def p_simple_type_or_string_8(p):
    '''simple_type_or_string : K_string '''
    print(p)
    # { string_type_t*tmp = new string_type_t;
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p__embed0_simple_type_or_string(p):
    '''_embed0_simple_type_or_string : '''
    # { lex_in_package_scope($1); }
()
def p_statement_1(p):
    '''statement : attribute_list_opt statement_item '''
    print(p)
    # { pform_bind_attributes($2->attributes, $1);
    #   $$ = $2;
    #       }
()
def p_statement_or_null_1(p):
    '''statement_or_null : statement '''
    print(p)
    # { $$ = $1; }
()
def p_statement_or_null_2(p):
    '''statement_or_null : attribute_list_opt ';' '''
    print(p)
    # { $$ = 0; }
()
def p_stream_expression_1(p):
    '''stream_expression : expression '''
    print(p)
()
def p_stream_expression_list_1(p):
    '''stream_expression_list : stream_expression_list ',' stream_expression '''
    print(p)
()
def p_stream_expression_list_2(p):
    '''stream_expression_list : stream_expression '''
    print(p)
()
def p_stream_operator_1(p):
    '''stream_operator : K_LS '''
    print(p)
()
def p_stream_operator_2(p):
    '''stream_operator : K_RS '''
    print(p)
()
def p_streaming_concatenation_1(p):
    '''streaming_concatenation : '{' stream_operator '{' stream_expression_list '}' '}' '''
    print(p)
    # { /* streaming concatenation is a SystemVerilog thing. */
    #   if (gn_system_verilog()) {
    #         yyerror(@2, "sorry: Streaming concatenation not supported.");
    #         $$ = 0;
    #   } else {
    #         yyerror(@2, "error: Streaming concatenation requires SystemVerilog");
    #         $$ = 0;
    #   }
    #       }
()
def p_task_declaration_1(p):
    '''task_declaration : K_task lifetime_opt IDENTIFIER ';' _embed0_task_declaration task_item_list_opt statement_or_null_list_opt K_endtask _embed1_task_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name. This is done late so
    #   // that the parser can look ahead to detect the present
    #   // endlabel_opt but still have the pform_endmodule() called
    #   // early enough that the lexor can know we are outside the
    #   // module.
    #   if ($10) {
    #         if (strcmp($3,$10) != 0) {
    #               yyerror(@10, "error: End label doesn't match task name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@10, "error: Task end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$10;
    #   }
    #   delete[]$3;
    #       }
()
def p_task_declaration_2(p):
    '''task_declaration : K_task lifetime_opt IDENTIFIER '(' _embed2_task_declaration tf_port_list ')' ';' block_item_decls_opt statement_or_null_list_opt K_endtask _embed3_task_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name. This is done late so
    #   // that the parser can look ahead to detect the present
    #   // endlabel_opt but still have the pform_endmodule() called
    #   // early enough that the lexor can know we are outside the
    #   // module.
    #   if ($13) {
    #         if (strcmp($3,$13) != 0) {
    #               yyerror(@13, "error: End label doesn't match task name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@13, "error: Task end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$13;
    #   }
    #   delete[]$3;
    #       }
()
def p_task_declaration_3(p):
    '''task_declaration : K_task lifetime_opt IDENTIFIER '(' ')' ';' _embed4_task_declaration block_item_decls_opt statement_or_null_list K_endtask _embed5_task_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name. This is done late so
    #   // that the parser can look ahead to detect the present
    #   // endlabel_opt but still have the pform_endmodule() called
    #   // early enough that the lexor can know we are outside the
    #   // module.
    #   if ($12) {
    #         if (strcmp($3,$12) != 0) {
    #               yyerror(@12, "error: End label doesn't match task name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@12, "error: Task end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$12;
    #   }
    #   delete[]$3;
    #       }
()
def p_task_declaration_4(p):
    '''task_declaration : K_task lifetime_opt IDENTIFIER error K_endtask _embed6_task_declaration endlabel_opt '''
    print(p)
    # { // Last step: check any closing name. This is done late so
    #   // that the parser can look ahead to detect the present
    #   // endlabel_opt but still have the pform_endmodule() called
    #   // early enough that the lexor can know we are outside the
    #   // module.
    #   if ($7) {
    #         if (strcmp($3,$7) != 0) {
    #               yyerror(@7, "error: End label doesn't match task name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@7, "error: Task end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$7;
    #   }
    #   delete[]$3;
    #       }
()
def p__embed0_task_declaration(p):
    '''_embed0_task_declaration : '''
    # { assert(current_task == 0);
    #   current_task = pform_push_task_scope(@1, $3, $2);
    #       }
()
def p__embed1_task_declaration(p):
    '''_embed1_task_declaration : '''
    # { current_task->set_ports($6);
    #   current_task_set_statement(@3, $7);
    #   pform_set_this_class(@3, current_task);
    #   pform_pop_scope();
    #   current_task = 0;
    #   if ($7 && $7->size() > 1 && !gn_system_verilog()) {
    #         yyerror(@7, "error: Task body with multiple statements requires SystemVerilog.");
    #   }
    #   delete $7;
    #       }
()
def p__embed2_task_declaration(p):
    '''_embed2_task_declaration : '''
    # { assert(current_task == 0);
    #   current_task = pform_push_task_scope(@1, $3, $2);
    #       }
()
def p__embed3_task_declaration(p):
    '''_embed3_task_declaration : '''
    # { current_task->set_ports($6);
    #   current_task_set_statement(@3, $10);
    #   pform_set_this_class(@3, current_task);
    #   pform_pop_scope();
    #   current_task = 0;
    #   if ($10) delete $10;
    #       }
()
def p__embed4_task_declaration(p):
    '''_embed4_task_declaration : '''
    # { assert(current_task == 0);
    #   current_task = pform_push_task_scope(@1, $3, $2);
    #       }
()
def p__embed5_task_declaration(p):
    '''_embed5_task_declaration : '''
    # { current_task->set_ports(0);
    #   current_task_set_statement(@3, $9);
    #   pform_set_this_class(@3, current_task);
    #   if (! current_task->method_of()) {
    #         cerr << @3 << ": warning: task definition for \"" << $3
    #              << "\" has an empty port declaration list!" << endl;
    #   }
    #   pform_pop_scope();
    #   current_task = 0;
    #   if ($9->size() > 1 && !gn_system_verilog()) {
    #         yyerror(@9, "error: Task body with multiple statements requires SystemVerilog.");
    #   }
    #   delete $9;
    #       }
()
def p__embed6_task_declaration(p):
    '''_embed6_task_declaration : '''
    # {
    #   if (current_task) {
    #         pform_pop_scope();
    #         current_task = 0;
    #   }
    #       }
()
def p_tf_port_declaration_1(p):
    '''tf_port_declaration : port_direction K_reg_opt unsigned_signed_opt dimensions_opt list_of_identifiers ';' '''
    print(p)
    # { vector<pform_tf_port_t>*tmp = pform_make_task_ports(@1, $1,
    #                                           $2 ? IVL_VT_LOGIC :
    #                                                IVL_VT_NO_TYPE,
    #                                           $3, $4, $5);
    #   $$ = tmp;
    #       }
()
def p_tf_port_declaration_2(p):
    '''tf_port_declaration : port_direction K_integer list_of_identifiers ';' '''
    print(p)
    # { list<pform_range_t>*range_stub = make_range_from_width(integer_width);
    #   vector<pform_tf_port_t>*tmp = pform_make_task_ports(@1, $1, IVL_VT_LOGIC, true,
    #                                               range_stub, $3, true);
    #   $$ = tmp;
    #       }
()
def p_tf_port_declaration_3(p):
    '''tf_port_declaration : port_direction K_time list_of_identifiers ';' '''
    print(p)
    # { list<pform_range_t>*range_stub = make_range_from_width(64);
    #   vector<pform_tf_port_t>*tmp = pform_make_task_ports(@1, $1, IVL_VT_LOGIC, false,
    #                                              range_stub, $3);
    #   $$ = tmp;
    #       }
()
def p_tf_port_declaration_4(p):
    '''tf_port_declaration : port_direction real_or_realtime list_of_identifiers ';' '''
    print(p)
    # { vector<pform_tf_port_t>*tmp = pform_make_task_ports(@1, $1, IVL_VT_REAL, true,
    #                                              0, $3);
    #   $$ = tmp;
    #       }
()
def p_tf_port_declaration_5(p):
    '''tf_port_declaration : port_direction K_string list_of_identifiers ';' '''
    print(p)
    # { vector<pform_tf_port_t>*tmp = pform_make_task_ports(@1, $1, IVL_VT_STRING, true,
    #                                              0, $3);
    #   $$ = tmp;
    #       }
()
def p_tf_port_item_1(p):
    '''tf_port_item : port_direction_opt data_type_or_implicit IDENTIFIER dimensions_opt tf_port_item_expr_opt '''
    print(p)
    # { vector<pform_tf_port_t>*tmp;
    #   NetNet::PortType use_port_type = $1;
    #         if ((use_port_type == NetNet::PIMPLICIT) && (gn_system_verilog() || ($2 == 0)))
    #               use_port_type = port_declaration_context.port_type;
    #   perm_string name = lex_strings.make($3);
    #   list<perm_string>* ilist = list_from_identifier($3);
    # 
    #   if (use_port_type == NetNet::PIMPLICIT) {
    #         yyerror(@1, "error: missing task/function port direction.");
    #         use_port_type = NetNet::PINPUT; // for error recovery
    #   }
    #   if (($2 == 0) && ($1==NetNet::PIMPLICIT)) {
    #           // Detect special case this is an undecorated
    #           // identifier and we need to get the declaration from
    #           // left context.
    #         if ($4 != 0) {
    #               yyerror(@4, "internal error: How can there be an unpacked range here?\n");
    #         }
    #         tmp = pform_make_task_ports(@3, use_port_type,
    #                                     port_declaration_context.data_type,
    #                                     ilist);
    # 
    #   } else {
    #           // Otherwise, the decorations for this identifier
    #           // indicate the type. Save the type for any right
    #           // context that may come later.
    #         port_declaration_context.port_type = use_port_type;
    #         if ($2 == 0) {
    #               $2 = new vector_type_t(IVL_VT_LOGIC, false, 0);
    #               FILE_NAME($2, @3);
    #         }
    #         port_declaration_context.data_type = $2;
    #         tmp = pform_make_task_ports(@3, use_port_type, $2, ilist);
    #   }
    #   if ($4 != 0) {
    #         pform_set_reg_idx(name, $4);
    #   }
    # 
    #   $$ = tmp;
    #   if ($5) {
    #         assert(tmp->size()==1);
    #         tmp->front().defe = $5;
    #   }
    #       }
()
def p_tf_port_item_2(p):
    '''tf_port_item : port_direction_opt data_type_or_implicit IDENTIFIER error '''
    print(p)
    # { yyerror(@3, "error: Error in task/function port item after port name %s.", $3);
    #   yyerrok;
    #   $$ = 0;
    #       }
()
def p_tf_port_item_expr_opt_1(p):
    '''tf_port_item_expr_opt : '=' expression '''
    print(p)
    # { if (! gn_system_verilog()) {
    #         yyerror(@1, "error: Task/function default arguments require "
    #                     "SystemVerilog.");
    #   }
    #   $$ = $2;
    #       }
()
def p_tf_port_item_expr_opt_2(p):
    '''tf_port_item_expr_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_tf_port_list_1(p):
    '''tf_port_list : _embed0_tf_port_list tf_port_item_list '''
    print(p)
    # { $$ = $2; }
()
def p__embed0_tf_port_list(p):
    '''_embed0_tf_port_list : '''
    # { port_declaration_context.port_type = gn_system_verilog() ? NetNet::PINPUT : NetNet::PIMPLICIT;
    #   port_declaration_context.data_type = 0;
    #       }
()
def p_tf_port_item_list_1(p):
    '''tf_port_item_list : tf_port_item_list ',' tf_port_item '''
    print(p)
    # { vector<pform_tf_port_t>*tmp;
    #   if ($1 && $3) {
    #         size_t s1 = $1->size();
    #         tmp = $1;
    #         tmp->resize(tmp->size()+$3->size());
    #         for (size_t idx = 0 ; idx < $3->size() ; idx += 1)
    #               tmp->at(s1+idx) = $3->at(idx);
    #         delete $3;
    #   } else if ($1) {
    #         tmp = $1;
    #   } else {
    #         tmp = $3;
    #   }
    #   $$ = tmp;
    #       }
()
def p_tf_port_item_list_2(p):
    '''tf_port_item_list : tf_port_item '''
    print(p)
    # { $$ = $1; }
()
def p_tf_port_item_list_3(p):
    '''tf_port_item_list : error ',' tf_port_item '''
    print(p)
    # { yyerror(@2, "error: Syntax error in task/function port declaration.");
    #   $$ = $3;
    #       }
()
def p_tf_port_item_list_4(p):
    '''tf_port_item_list : tf_port_item_list ',' '''
    print(p)
    # { yyerror(@2, "error: NULL port declarations are not allowed.");
    #   $$ = $1;
    #       }
()
def p_tf_port_item_list_5(p):
    '''tf_port_item_list : tf_port_item_list ';' '''
    print(p)
    # { yyerror(@2, "error: ';' is an invalid port declaration separator.");
    #   $$ = $1;
    #       }
()
def p_timeunits_declaration_1(p):
    '''timeunits_declaration : K_timeunit TIME_LITERAL ';' '''
    print(p)
    # { pform_set_timeunit($2, allow_timeunit_decl); }
()
def p_timeunits_declaration_2(p):
    '''timeunits_declaration : K_timeunit TIME_LITERAL '/' TIME_LITERAL ';' '''
    print(p)
    # { bool initial_decl = allow_timeunit_decl && allow_timeprec_decl;
    #         pform_set_timeunit($2, initial_decl);
    #         pform_set_timeprec($4, initial_decl);
    #       }
()
def p_timeunits_declaration_3(p):
    '''timeunits_declaration : K_timeprecision TIME_LITERAL ';' '''
    print(p)
    # { pform_set_timeprec($2, allow_timeprec_decl); }
()
def p_timeunits_declaration_opt_1(p):
    '''timeunits_declaration_opt : %prec no_timeunits_declaration '''
    print(p)
()
def p_timeunits_declaration_opt_2(p):
    '''timeunits_declaration_opt : timeunits_declaration %prec one_timeunits_declaration '''
    print(p)
()
def p_timeunits_declaration_opt_3(p):
    '''timeunits_declaration_opt : timeunits_declaration timeunits_declaration '''
    print(p)
()
def p_value_range_1(p):
    '''value_range : expression '''
    print(p)
    # { }
()
def p_value_range_2(p):
    '''value_range : '[' expression ':' expression ']' '''
    print(p)
    # { }
()
def p_variable_dimension_1(p):
    '''variable_dimension : '[' expression ':' expression ']' '''
    print(p)
    # { list<pform_range_t> *tmp = new list<pform_range_t>;
    #   pform_range_t index ($2,$4);
    #   tmp->push_back(index);
    #   $$ = tmp;
    #       }
()
def p_variable_dimension_2(p):
    '''variable_dimension : '[' expression ']' '''
    print(p)
    # { // SystemVerilog canonical range
    #   if (!gn_system_verilog()) {
    #         warn_count += 1;
    #         cerr << @2 << ": warning: Use of SystemVerilog [size] dimension. "
    #              << "Use at least -g2005-sv to remove this warning." << endl;
    #   }
    #   list<pform_range_t> *tmp = new list<pform_range_t>;
    #   pform_range_t index;
    #   index.first = new PENumber(new verinum((uint64_t)0, integer_width));
    #   index.second = new PEBinary('-', $2, new PENumber(new verinum((uint64_t)1, integer_width)));
    #   tmp->push_back(index);
    #   $$ = tmp;
    #       }
()
def p_variable_dimension_3(p):
    '''variable_dimension : '[' ']' '''
    print(p)
    # { list<pform_range_t> *tmp = new list<pform_range_t>;
    #   pform_range_t index (0,0);
    #   tmp->push_back(index);
    #   $$ = tmp;
    #       }
()
def p_variable_dimension_4(p):
    '''variable_dimension : '[' '$' ']' '''
    print(p)
    # { // SystemVerilog queue
    #   list<pform_range_t> *tmp = new list<pform_range_t>;
    #   pform_range_t index (new PENull,0);
    #   if (!gn_system_verilog()) {
    #         yyerror("error: Queue declarations require SystemVerilog.");
    #   }
    #   tmp->push_back(index);
    #   $$ = tmp;
    #       }
()
def p_variable_lifetime_1(p):
    '''variable_lifetime : lifetime '''
    print(p)
    # { if (!gn_system_verilog()) {
    #         yyerror(@1, "error: overriding the default variable lifetime "
    #                     "requires SystemVerilog.");
    #   } else if ($1 != pform_peek_scope()->default_lifetime) {
    #         yyerror(@1, "sorry: overriding the default variable lifetime "
    #                     "is not yet supported.");
    #   }
    #   var_lifetime = $1;
    #       }
()
def p_attribute_list_opt_1(p):
    '''attribute_list_opt : attribute_instance_list '''
    print(p)
    # { $$ = $1; }
()
def p_attribute_list_opt_2(p):
    '''attribute_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_attribute_instance_list_1(p):
    '''attribute_instance_list : K_PSTAR K_STARP '''
    print(p)
    # { $$ = 0; }
()
def p_attribute_instance_list_2(p):
    '''attribute_instance_list : K_PSTAR attribute_list K_STARP '''
    print(p)
    # { $$ = $2; }
()
def p_attribute_instance_list_3(p):
    '''attribute_instance_list : attribute_instance_list K_PSTAR K_STARP '''
    print(p)
    # { $$ = $1; }
()
def p_attribute_instance_list_4(p):
    '''attribute_instance_list : attribute_instance_list K_PSTAR attribute_list K_STARP '''
    print(p)
    # { list<named_pexpr_t>*tmp = $1;
    #   if (tmp) {
    #       tmp->splice(tmp->end(), *$3);
    #       delete $3;
    #       $$ = tmp;
    #   } else $$ = $3;
    #       }
()
def p_attribute_list_1(p):
    '''attribute_list : attribute_list ',' attribute '''
    print(p)
    # { list<named_pexpr_t>*tmp = $1;
    #         tmp->push_back(*$3);
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_attribute_list_2(p):
    '''attribute_list : attribute '''
    print(p)
    # { list<named_pexpr_t>*tmp = new list<named_pexpr_t>;
    #         tmp->push_back(*$1);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_attribute_1(p):
    '''attribute : IDENTIFIER '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($1);
    #             tmp->parm = 0;
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_attribute_2(p):
    '''attribute : IDENTIFIER '=' expression '''
    print(p)
    # { PExpr*tmp = $3;
    #             named_pexpr_t*tmp2 = new named_pexpr_t;
    #             tmp2->name = lex_strings.make($1);
    #             tmp2->parm = tmp;
    #             delete[]$1;
    #             $$ = tmp2;
    #           }
()
def p_block_item_decl_1(p):
    '''block_item_decl : data_type register_variable_list ';' '''
    print(p)
    # { if ($1) pform_set_data_type(@1, $1, $2, NetNet::REG, attributes_in_context);
    #       }
()
def p_block_item_decl_2(p):
    '''block_item_decl : variable_lifetime data_type register_variable_list ';' '''
    print(p)
    # { if ($2) pform_set_data_type(@2, $2, $3, NetNet::REG, attributes_in_context);
    #   var_lifetime = LexicalScope::INHERITED;
    #       }
()
def p_block_item_decl_3(p):
    '''block_item_decl : K_reg data_type register_variable_list ';' '''
    print(p)
    # { if ($2) pform_set_data_type(@2, $2, $3, NetNet::REG, attributes_in_context);
    #       }
()
def p_block_item_decl_4(p):
    '''block_item_decl : variable_lifetime K_reg data_type register_variable_list ';' '''
    print(p)
    # { if ($3) pform_set_data_type(@3, $3, $4, NetNet::REG, attributes_in_context);
    #   var_lifetime = LexicalScope::INHERITED;
    #       }
()
def p_block_item_decl_5(p):
    '''block_item_decl : K_event event_variable_list ';' '''
    print(p)
    # { if ($2) pform_make_events($2, @1.text, @1.first_line);
    #       }
()
def p_block_item_decl_6(p):
    '''block_item_decl : K_parameter param_type parameter_assign_list ';' '''
    print(p)
()
def p_block_item_decl_7(p):
    '''block_item_decl : K_localparam param_type localparam_assign_list ';' '''
    print(p)
()
def p_block_item_decl_8(p):
    '''block_item_decl : type_declaration '''
    print(p)
()
def p_block_item_decl_9(p):
    '''block_item_decl : K_integer error ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error in integer variable list.");
    #   yyerrok;
    #       }
()
def p_block_item_decl_10(p):
    '''block_item_decl : K_time error ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error in time variable list.");
    #   yyerrok;
    #       }
()
def p_block_item_decl_11(p):
    '''block_item_decl : K_parameter error ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error in parameter list.");
    #   yyerrok;
    #       }
()
def p_block_item_decl_12(p):
    '''block_item_decl : K_localparam error ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error localparam list.");
    #   yyerrok;
    #       }
()
def p_block_item_decls_1(p):
    '''block_item_decls : block_item_decl '''
    print(p)
()
def p_block_item_decls_2(p):
    '''block_item_decls : block_item_decls block_item_decl '''
    print(p)
()
def p_block_item_decls_opt_1(p):
    '''block_item_decls_opt : block_item_decls '''
    print(p)
    # { $$ = true; }
()
def p_block_item_decls_opt_2(p):
    '''block_item_decls_opt :  '''
    print(p)
    # { $$ = false; }
()
def p_type_declaration_1(p):
    '''type_declaration : K_typedef data_type IDENTIFIER dimensions_opt ';' '''
    print(p)
    # { perm_string name = lex_strings.make($3);
    #   pform_set_typedef(name, $2, $4);
    #   delete[]$3;
    #       }
()
def p_type_declaration_2(p):
    '''type_declaration : K_typedef data_type TYPE_IDENTIFIER ';' '''
    print(p)
    # { perm_string name = lex_strings.make($3.text);
    #   if (pform_test_type_identifier_local(name)) {
    #         yyerror(@3, "error: Typedef identifier \"%s\" is already a type name.", $3.text);
    # 
    #   } else {
    #         pform_set_typedef(name, $2, NULL);
    #   }
    #   delete[]$3.text;
    #       }
()
def p_type_declaration_3(p):
    '''type_declaration : K_typedef K_class IDENTIFIER ';' '''
    print(p)
    # { // Create a synthetic typedef for the class name so that the
    #   // lexor detects the name as a type.
    #   perm_string name = lex_strings.make($3);
    #   class_type_t*tmp = new class_type_t(name);
    #   FILE_NAME(tmp, @3);
    #   pform_set_typedef(name, tmp, NULL);
    #   delete[]$3;
    #       }
()
def p_type_declaration_4(p):
    '''type_declaration : K_typedef K_enum IDENTIFIER ';' '''
    print(p)
    # { yyerror(@1, "sorry: Enum forward declarations not supported yet."); }
()
def p_type_declaration_5(p):
    '''type_declaration : K_typedef K_struct IDENTIFIER ';' '''
    print(p)
    # { yyerror(@1, "sorry: Struct forward declarations not supported yet."); }
()
def p_type_declaration_6(p):
    '''type_declaration : K_typedef K_union IDENTIFIER ';' '''
    print(p)
    # { yyerror(@1, "sorry: Union forward declarations not supported yet."); }
()
def p_type_declaration_7(p):
    '''type_declaration : K_typedef IDENTIFIER ';' '''
    print(p)
    # { // Create a synthetic typedef for the class name so that the
    #   // lexor detects the name as a type.
    #   perm_string name = lex_strings.make($2);
    #   class_type_t*tmp = new class_type_t(name);
    #   FILE_NAME(tmp, @2);
    #   pform_set_typedef(name, tmp, NULL);
    #   delete[]$2;
    #       }
()
def p_type_declaration_8(p):
    '''type_declaration : K_typedef error ';' '''
    print(p)
    # { yyerror(@2, "error: Syntax error in typedef clause.");
    #   yyerrok;
    #       }
()
def p_enum_data_type_1(p):
    '''enum_data_type : K_enum '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($3);
    #   enum_type->base_type = IVL_VT_BOOL;
    #   enum_type->signed_flag = true;
    #   enum_type->integer_flag = false;
    #   enum_type->range.reset(make_range_from_width(32));
    #   $$ = enum_type;
    #       }
()
def p_enum_data_type_2(p):
    '''enum_data_type : K_enum atom2_type signed_unsigned_opt '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($5);
    #   enum_type->base_type = IVL_VT_BOOL;
    #   enum_type->signed_flag = $3;
    #   enum_type->integer_flag = false;
    #   enum_type->range.reset(make_range_from_width($2));
    #   $$ = enum_type;
    #       }
()
def p_enum_data_type_3(p):
    '''enum_data_type : K_enum K_integer signed_unsigned_opt '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($5);
    #   enum_type->base_type = IVL_VT_LOGIC;
    #   enum_type->signed_flag = $3;
    #   enum_type->integer_flag = true;
    #   enum_type->range.reset(make_range_from_width(integer_width));
    #   $$ = enum_type;
    #       }
()
def p_enum_data_type_4(p):
    '''enum_data_type : K_enum K_logic unsigned_signed_opt dimensions_opt '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($6);
    #   enum_type->base_type = IVL_VT_LOGIC;
    #   enum_type->signed_flag = $3;
    #   enum_type->integer_flag = false;
    #   enum_type->range.reset($4 ? $4 : make_range_from_width(1));
    #   $$ = enum_type;
    #       }
()
def p_enum_data_type_5(p):
    '''enum_data_type : K_enum K_reg unsigned_signed_opt dimensions_opt '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($6);
    #   enum_type->base_type = IVL_VT_LOGIC;
    #   enum_type->signed_flag = $3;
    #   enum_type->integer_flag = false;
    #   enum_type->range.reset($4 ? $4 : make_range_from_width(1));
    #   $$ = enum_type;
    #       }
()
def p_enum_data_type_6(p):
    '''enum_data_type : K_enum K_bit unsigned_signed_opt dimensions_opt '{' enum_name_list '}' '''
    print(p)
    # { enum_type_t*enum_type = new enum_type_t;
    #   FILE_NAME(enum_type, @1);
    #   enum_type->names .reset($6);
    #   enum_type->base_type = IVL_VT_BOOL;
    #   enum_type->signed_flag = $3;
    #   enum_type->integer_flag = false;
    #   enum_type->range.reset($4 ? $4 : make_range_from_width(1));
    #   $$ = enum_type;
    #       }
()
def p_enum_name_list_1(p):
    '''enum_name_list : enum_name '''
    print(p)
    # { $$ = $1;
    #       }
()
def p_enum_name_list_2(p):
    '''enum_name_list : enum_name_list ',' enum_name '''
    print(p)
    # { list<named_pexpr_t>*lst = $1;
    #   lst->splice(lst->end(), *$3);
    #   delete $3;
    #   $$ = lst;
    #       }
()
def p_pos_neg_number_1(p):
    '''pos_neg_number : number '''
    print(p)
    # { $$ = $1;
    #       }
()
def p_pos_neg_number_2(p):
    '''pos_neg_number : '-' number '''
    print(p)
    # { verinum tmp = -(*($2));
    #   *($2) = tmp;
    #   $$ = $2;
    #       }
()
def p_enum_name_1(p):
    '''enum_name : IDENTIFIER '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   delete[]$1;
    #   $$ = make_named_number(name);
    #       }
()
def p_enum_name_2(p):
    '''enum_name : IDENTIFIER '[' pos_neg_number ']' '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   long count = check_enum_seq_value(@1, $3, false);
    #   delete[]$1;
    #   $$ = make_named_numbers(name, 0, count-1);
    #   delete $3;
    #       }
()
def p_enum_name_3(p):
    '''enum_name : IDENTIFIER '[' pos_neg_number ':' pos_neg_number ']' '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   $$ = make_named_numbers(name, check_enum_seq_value(@1, $3, true),
    #                                 check_enum_seq_value(@1, $5, true));
    #   delete[]$1;
    #   delete $3;
    #   delete $5;
    #       }
()
def p_enum_name_4(p):
    '''enum_name : IDENTIFIER '=' expression '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   delete[]$1;
    #   $$ = make_named_number(name, $3);
    #       }
()
def p_enum_name_5(p):
    '''enum_name : IDENTIFIER '[' pos_neg_number ']' '=' expression '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   long count = check_enum_seq_value(@1, $3, false);
    #   $$ = make_named_numbers(name, 0, count-1, $6);
    #   delete[]$1;
    #   delete $3;
    #       }
()
def p_enum_name_6(p):
    '''enum_name : IDENTIFIER '[' pos_neg_number ':' pos_neg_number ']' '=' expression '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   $$ = make_named_numbers(name, check_enum_seq_value(@1, $3, true),
    #                                 check_enum_seq_value(@1, $5, true), $8);
    #   delete[]$1;
    #   delete $3;
    #   delete $5;
    #       }
()
def p_struct_data_type_1(p):
    '''struct_data_type : K_struct K_packed_opt '{' struct_union_member_list '}' '''
    print(p)
    # { struct_type_t*tmp = new struct_type_t;
    #   FILE_NAME(tmp, @1);
    #   tmp->packed_flag = $2;
    #   tmp->union_flag = false;
    #   tmp->members .reset($4);
    #   $$ = tmp;
    #       }
()
def p_struct_data_type_2(p):
    '''struct_data_type : K_union K_packed_opt '{' struct_union_member_list '}' '''
    print(p)
    # { struct_type_t*tmp = new struct_type_t;
    #   FILE_NAME(tmp, @1);
    #   tmp->packed_flag = $2;
    #   tmp->union_flag = true;
    #   tmp->members .reset($4);
    #   $$ = tmp;
    #       }
()
def p_struct_data_type_3(p):
    '''struct_data_type : K_struct K_packed_opt '{' error '}' '''
    print(p)
    # { yyerror(@3, "error: Errors in struct member list.");
    #   yyerrok;
    #   struct_type_t*tmp = new struct_type_t;
    #   FILE_NAME(tmp, @1);
    #   tmp->packed_flag = $2;
    #   tmp->union_flag = false;
    #   $$ = tmp;
    #       }
()
def p_struct_data_type_4(p):
    '''struct_data_type : K_union K_packed_opt '{' error '}' '''
    print(p)
    # { yyerror(@3, "error: Errors in union member list.");
    #   yyerrok;
    #   struct_type_t*tmp = new struct_type_t;
    #   FILE_NAME(tmp, @1);
    #   tmp->packed_flag = $2;
    #   tmp->union_flag = true;
    #   $$ = tmp;
    #       }
()
def p_struct_union_member_list_1(p):
    '''struct_union_member_list : struct_union_member_list struct_union_member '''
    print(p)
    # { list<struct_member_t*>*tmp = $1;
    #   tmp->push_back($2);
    #   $$ = tmp;
    #       }
()
def p_struct_union_member_list_2(p):
    '''struct_union_member_list : struct_union_member '''
    print(p)
    # { list<struct_member_t*>*tmp = new list<struct_member_t*>;
    #   tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_struct_union_member_1(p):
    '''struct_union_member : attribute_list_opt data_type list_of_variable_decl_assignments ';' '''
    print(p)
    # { struct_member_t*tmp = new struct_member_t;
    #   FILE_NAME(tmp, @2);
    #   tmp->type  .reset($2);
    #   tmp->names .reset($3);
    #   $$ = tmp;
    #       }
()
def p_struct_union_member_2(p):
    '''struct_union_member : error ';' '''
    print(p)
    # { yyerror(@2, "Error in struct/union member.");
    #   yyerrok;
    #   $$ = 0;
    #       }
()
def p_case_item_1(p):
    '''case_item : expression_list_proper ':' statement_or_null '''
    print(p)
    # { PCase::Item*tmp = new PCase::Item;
    #             tmp->expr = *$1;
    #             tmp->stat = $3;
    #             delete $1;
    #             $$ = tmp;
    #           }
()
def p_case_item_2(p):
    '''case_item : K_default ':' statement_or_null '''
    print(p)
    # { PCase::Item*tmp = new PCase::Item;
    #             tmp->stat = $3;
    #             $$ = tmp;
    #           }
()
def p_case_item_3(p):
    '''case_item : K_default statement_or_null '''
    print(p)
    # { PCase::Item*tmp = new PCase::Item;
    #             tmp->stat = $2;
    #             $$ = tmp;
    #           }
()
def p_case_item_4(p):
    '''case_item : error ':' statement_or_null '''
    print(p)
    # { yyerror(@2, "error: Incomprehensible case expression.");
    #             yyerrok;
    #           }
()
def p_case_items_1(p):
    '''case_items : case_items case_item '''
    print(p)
    # { svector<PCase::Item*>*tmp;
    #             tmp = new svector<PCase::Item*>(*$1, $2);
    #             delete $1;
    #             $$ = tmp;
    #           }
()
def p_case_items_2(p):
    '''case_items : case_item '''
    print(p)
    # { svector<PCase::Item*>*tmp = new svector<PCase::Item*>(1);
    #             (*tmp)[0] = $1;
    #             $$ = tmp;
    #           }
()
def p_charge_strength_1(p):
    '''charge_strength : '(' K_small ')' '''
    print(p)
()
def p_charge_strength_2(p):
    '''charge_strength : '(' K_medium ')' '''
    print(p)
()
def p_charge_strength_3(p):
    '''charge_strength : '(' K_large ')' '''
    print(p)
()
def p_charge_strength_opt_1(p):
    '''charge_strength_opt : charge_strength '''
    print(p)
()
def p_charge_strength_opt_2(p):
    '''charge_strength_opt :  '''
    print(p)
()
def p_defparam_assign_1(p):
    '''defparam_assign : hierarchy_identifier '=' expression '''
    print(p)
    # { pform_set_defparam(*$1, $3);
    #             delete $1;
    #           }
()
def p_defparam_assign_list_1(p):
    '''defparam_assign_list : defparam_assign '''
    print(p)
()
def p_defparam_assign_list_2(p):
    '''defparam_assign_list : dimensions defparam_assign '''
    print(p)
    # { yyerror(@1, "error: defparam may not include a range.");
    #   delete $1;
    #       }
()
def p_defparam_assign_list_3(p):
    '''defparam_assign_list : defparam_assign_list ',' defparam_assign '''
    print(p)
()
def p_delay1_1(p):
    '''delay1 : '#' delay_value_simple '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($2);
    #             $$ = tmp;
    #           }
()
def p_delay1_2(p):
    '''delay1 : '#' '(' delay_value ')' '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             $$ = tmp;
    #           }
()
def p_delay3_1(p):
    '''delay3 : '#' delay_value_simple '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($2);
    #             $$ = tmp;
    #           }
()
def p_delay3_2(p):
    '''delay3 : '#' '(' delay_value ')' '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             $$ = tmp;
    #           }
()
def p_delay3_3(p):
    '''delay3 : '#' '(' delay_value ',' delay_value ')' '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             tmp->push_back($5);
    #             $$ = tmp;
    #           }
()
def p_delay3_4(p):
    '''delay3 : '#' '(' delay_value ',' delay_value ',' delay_value ')' '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             tmp->push_back($5);
    #             tmp->push_back($7);
    #             $$ = tmp;
    #           }
()
def p_delay3_opt_1(p):
    '''delay3_opt : delay3 '''
    print(p)
    # { $$ = $1; }
()
def p_delay3_opt_2(p):
    '''delay3_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_delay_value_list_1(p):
    '''delay_value_list : delay_value '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #   tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_delay_value_list_2(p):
    '''delay_value_list : delay_value_list ',' delay_value '''
    print(p)
    # { list<PExpr*>*tmp = $1;
    #   tmp->push_back($3);
    #   $$ = tmp;
    #       }
()
def p_delay_value_1(p):
    '''delay_value : expression '''
    print(p)
    # { PExpr*tmp = $1;
    #             $$ = tmp;
    #           }
()
def p_delay_value_2(p):
    '''delay_value : expression ':' expression ':' expression '''
    print(p)
    # { $$ = pform_select_mtm_expr($1, $3, $5); }
()
def p_delay_value_simple_1(p):
    '''delay_value_simple : DEC_NUMBER '''
    print(p)
    # { verinum*tmp = $1;
    #             if (tmp == 0) {
    #                   yyerror(@1, "internal error: delay.");
    #                   $$ = 0;
    #             } else {
    #                   $$ = new PENumber(tmp);
    #                   FILE_NAME($$, @1);
    #             }
    #             based_size = 0;
    #           }
()
def p_delay_value_simple_2(p):
    '''delay_value_simple : REALTIME '''
    print(p)
    # { verireal*tmp = $1;
    #             if (tmp == 0) {
    #                   yyerror(@1, "internal error: delay.");
    #                   $$ = 0;
    #             } else {
    #                   $$ = new PEFNumber(tmp);
    #                   FILE_NAME($$, @1);
    #             }
    #           }
()
def p_delay_value_simple_3(p):
    '''delay_value_simple : IDENTIFIER '''
    print(p)
    # { PEIdent*tmp = new PEIdent(lex_strings.make($1));
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_delay_value_simple_4(p):
    '''delay_value_simple : TIME_LITERAL '''
    print(p)
    # { int unit;
    # 
    #             based_size = 0;
    #             $$         = 0;
    #             if ($1 == 0 || !get_time_unit($1, unit))
    #                   yyerror(@1, "internal error: delay.");
    #             else {
    #                   double p = pow(10.0,
    #                                  (double)(unit - pform_get_timeunit()));
    #                   double time = atof($1) * p;
    # 
    #                   verireal *v = new verireal(time);
    #                   $$ = new PEFNumber(v);
    #                   FILE_NAME($$, @1);
    #             }
    #           }
()
def p_optional_semicolon_1(p):
    '''optional_semicolon : ';' '''
    print(p)
()
def p_optional_semicolon_2(p):
    '''optional_semicolon :  '''
    print(p)
()
def p_discipline_declaration_1(p):
    '''discipline_declaration : K_discipline IDENTIFIER optional_semicolon _embed0_discipline_declaration discipline_items K_enddiscipline '''
    print(p)
    # { pform_end_discipline(@1); delete[] $2; }
()
def p__embed0_discipline_declaration(p):
    '''_embed0_discipline_declaration : '''
    # { pform_start_discipline($2); }
()
def p_discipline_items_1(p):
    '''discipline_items : discipline_items discipline_item '''
    print(p)
()
def p_discipline_items_2(p):
    '''discipline_items : discipline_item '''
    print(p)
()
def p_discipline_item_1(p):
    '''discipline_item : K_domain K_discrete ';' '''
    print(p)
    # { pform_discipline_domain(@1, IVL_DIS_DISCRETE); }
()
def p_discipline_item_2(p):
    '''discipline_item : K_domain K_continuous ';' '''
    print(p)
    # { pform_discipline_domain(@1, IVL_DIS_CONTINUOUS); }
()
def p_discipline_item_3(p):
    '''discipline_item : K_potential IDENTIFIER ';' '''
    print(p)
    # { pform_discipline_potential(@1, $2); delete[] $2; }
()
def p_discipline_item_4(p):
    '''discipline_item : K_flow IDENTIFIER ';' '''
    print(p)
    # { pform_discipline_flow(@1, $2); delete[] $2; }
()
def p_nature_declaration_1(p):
    '''nature_declaration : K_nature IDENTIFIER optional_semicolon _embed0_nature_declaration nature_items K_endnature '''
    print(p)
    # { pform_end_nature(@1); delete[] $2; }
()
def p__embed0_nature_declaration(p):
    '''_embed0_nature_declaration : '''
    # { pform_start_nature($2); }
()
def p_nature_items_1(p):
    '''nature_items : nature_items nature_item '''
    print(p)
()
def p_nature_items_2(p):
    '''nature_items : nature_item '''
    print(p)
()
def p_nature_item_1(p):
    '''nature_item : K_units '=' STRING ';' '''
    print(p)
    # { delete[] $3; }
()
def p_nature_item_2(p):
    '''nature_item : K_abstol '=' expression ';' '''
    print(p)
()
def p_nature_item_3(p):
    '''nature_item : K_access '=' IDENTIFIER ';' '''
    print(p)
    # { pform_nature_access(@1, $3); delete[] $3; }
()
def p_nature_item_4(p):
    '''nature_item : K_idt_nature '=' IDENTIFIER ';' '''
    print(p)
    # { delete[] $3; }
()
def p_nature_item_5(p):
    '''nature_item : K_ddt_nature '=' IDENTIFIER ';' '''
    print(p)
    # { delete[] $3; }
()
def p_config_declaration_1(p):
    '''config_declaration : K_config IDENTIFIER ';' K_design lib_cell_identifiers ';' list_of_config_rule_statements K_endconfig '''
    print(p)
    # { cerr << @1 << ": sorry: config declarations are not supported and "
    #                 "will be skipped." << endl;
    #   delete[] $2;
    #       }
()
def p_lib_cell_identifiers_1(p):
    '''lib_cell_identifiers :  '''
    print(p)
()
def p_lib_cell_identifiers_2(p):
    '''lib_cell_identifiers : lib_cell_identifiers lib_cell_id '''
    print(p)
()
def p_list_of_config_rule_statements_1(p):
    '''list_of_config_rule_statements :  '''
    print(p)
()
def p_list_of_config_rule_statements_2(p):
    '''list_of_config_rule_statements : list_of_config_rule_statements config_rule_statement '''
    print(p)
()
def p_config_rule_statement_1(p):
    '''config_rule_statement : K_default K_liblist list_of_libraries ';' '''
    print(p)
()
def p_config_rule_statement_2(p):
    '''config_rule_statement : K_instance hierarchy_identifier K_liblist list_of_libraries ';' '''
    print(p)
    # { delete $2; }
()
def p_config_rule_statement_3(p):
    '''config_rule_statement : K_instance hierarchy_identifier K_use lib_cell_id opt_config ';' '''
    print(p)
    # { delete $2; }
()
def p_config_rule_statement_4(p):
    '''config_rule_statement : K_cell lib_cell_id K_liblist list_of_libraries ';' '''
    print(p)
()
def p_config_rule_statement_5(p):
    '''config_rule_statement : K_cell lib_cell_id K_use lib_cell_id opt_config ';' '''
    print(p)
()
def p_opt_config_1(p):
    '''opt_config :  '''
    print(p)
()
def p_opt_config_2(p):
    '''opt_config : ':' K_config '''
    print(p)
()
def p_lib_cell_id_1(p):
    '''lib_cell_id : IDENTIFIER '''
    print(p)
    # { delete[] $1; }
()
def p_lib_cell_id_2(p):
    '''lib_cell_id : IDENTIFIER '.' IDENTIFIER '''
    print(p)
    # { delete[] $1; delete[] $3; }
()
def p_list_of_libraries_1(p):
    '''list_of_libraries :  '''
    print(p)
()
def p_list_of_libraries_2(p):
    '''list_of_libraries : list_of_libraries IDENTIFIER '''
    print(p)
    # { delete[] $2; }
()
def p_drive_strength_1(p):
    '''drive_strength : '(' dr_strength0 ',' dr_strength1 ')' '''
    print(p)
    # { $$.str0 = $2.str0;
    #             $$.str1 = $4.str1;
    #           }
()
def p_drive_strength_2(p):
    '''drive_strength : '(' dr_strength1 ',' dr_strength0 ')' '''
    print(p)
    # { $$.str0 = $4.str0;
    #             $$.str1 = $2.str1;
    #           }
()
def p_drive_strength_3(p):
    '''drive_strength : '(' dr_strength0 ',' K_highz1 ')' '''
    print(p)
    # { $$.str0 = $2.str0;
    #             $$.str1 = IVL_DR_HiZ;
    #           }
()
def p_drive_strength_4(p):
    '''drive_strength : '(' dr_strength1 ',' K_highz0 ')' '''
    print(p)
    # { $$.str0 = IVL_DR_HiZ;
    #             $$.str1 = $2.str1;
    #           }
()
def p_drive_strength_5(p):
    '''drive_strength : '(' K_highz1 ',' dr_strength0 ')' '''
    print(p)
    # { $$.str0 = $4.str0;
    #             $$.str1 = IVL_DR_HiZ;
    #           }
()
def p_drive_strength_6(p):
    '''drive_strength : '(' K_highz0 ',' dr_strength1 ')' '''
    print(p)
    # { $$.str0 = IVL_DR_HiZ;
    #             $$.str1 = $4.str1;
    #           }
()
def p_drive_strength_opt_1(p):
    '''drive_strength_opt : drive_strength '''
    print(p)
    # { $$ = $1; }
()
def p_drive_strength_opt_2(p):
    '''drive_strength_opt :  '''
    print(p)
    # { $$.str0 = IVL_DR_STRONG; $$.str1 = IVL_DR_STRONG; }
()
def p_dr_strength0_1(p):
    '''dr_strength0 : K_supply0 '''
    print(p)
    # { $$.str0 = IVL_DR_SUPPLY; }
()
def p_dr_strength0_2(p):
    '''dr_strength0 : K_strong0 '''
    print(p)
    # { $$.str0 = IVL_DR_STRONG; }
()
def p_dr_strength0_3(p):
    '''dr_strength0 : K_pull0 '''
    print(p)
    # { $$.str0 = IVL_DR_PULL; }
()
def p_dr_strength0_4(p):
    '''dr_strength0 : K_weak0 '''
    print(p)
    # { $$.str0 = IVL_DR_WEAK; }
()
def p_dr_strength1_1(p):
    '''dr_strength1 : K_supply1 '''
    print(p)
    # { $$.str1 = IVL_DR_SUPPLY; }
()
def p_dr_strength1_2(p):
    '''dr_strength1 : K_strong1 '''
    print(p)
    # { $$.str1 = IVL_DR_STRONG; }
()
def p_dr_strength1_3(p):
    '''dr_strength1 : K_pull1 '''
    print(p)
    # { $$.str1 = IVL_DR_PULL; }
()
def p_dr_strength1_4(p):
    '''dr_strength1 : K_weak1 '''
    print(p)
    # { $$.str1 = IVL_DR_WEAK; }
()
def p_clocking_event_opt_1(p):
    '''clocking_event_opt : event_control '''
    print(p)
()
def p_clocking_event_opt_2(p):
    '''clocking_event_opt :  '''
    print(p)
()
def p_event_control_1(p):
    '''event_control : '@' hierarchy_identifier '''
    print(p)
    # { PEIdent*tmpi = new PEIdent(*$2);
    #             PEEvent*tmpe = new PEEvent(PEEvent::ANYEDGE, tmpi);
    #             PEventStatement*tmps = new PEventStatement(tmpe);
    #             FILE_NAME(tmps, @1);
    #             $$ = tmps;
    #             delete $2;
    #           }
()
def p_event_control_2(p):
    '''event_control : '@' '(' event_expression_list ')' '''
    print(p)
    # { PEventStatement*tmp = new PEventStatement(*$3);
    #             FILE_NAME(tmp, @1);
    #             delete $3;
    #             $$ = tmp;
    #           }
()
def p_event_control_3(p):
    '''event_control : '@' '(' error ')' '''
    print(p)
    # { yyerror(@1, "error: Malformed event control expression.");
    #             $$ = 0;
    #           }
()
def p_event_expression_list_1(p):
    '''event_expression_list : event_expression '''
    print(p)
    # { $$ = $1; }
()
def p_event_expression_list_2(p):
    '''event_expression_list : event_expression_list K_or event_expression '''
    print(p)
    # { svector<PEEvent*>*tmp = new svector<PEEvent*>(*$1, *$3);
    #             delete $1;
    #             delete $3;
    #             $$ = tmp;
    #           }
()
def p_event_expression_list_3(p):
    '''event_expression_list : event_expression_list ',' event_expression '''
    print(p)
    # { svector<PEEvent*>*tmp = new svector<PEEvent*>(*$1, *$3);
    #             delete $1;
    #             delete $3;
    #             $$ = tmp;
    #           }
()
def p_event_expression_1(p):
    '''event_expression : K_posedge expression '''
    print(p)
    # { PEEvent*tmp = new PEEvent(PEEvent::POSEDGE, $2);
    #             FILE_NAME(tmp, @1);
    #             svector<PEEvent*>*tl = new svector<PEEvent*>(1);
    #             (*tl)[0] = tmp;
    #             $$ = tl;
    #           }
()
def p_event_expression_2(p):
    '''event_expression : K_negedge expression '''
    print(p)
    # { PEEvent*tmp = new PEEvent(PEEvent::NEGEDGE, $2);
    #             FILE_NAME(tmp, @1);
    #             svector<PEEvent*>*tl = new svector<PEEvent*>(1);
    #             (*tl)[0] = tmp;
    #             $$ = tl;
    #           }
()
def p_event_expression_3(p):
    '''event_expression : expression '''
    print(p)
    # { PEEvent*tmp = new PEEvent(PEEvent::ANYEDGE, $1);
    #             FILE_NAME(tmp, @1);
    #             svector<PEEvent*>*tl = new svector<PEEvent*>(1);
    #             (*tl)[0] = tmp;
    #             $$ = tl;
    #           }
()
def p_branch_probe_expression_1(p):
    '''branch_probe_expression : IDENTIFIER '(' IDENTIFIER ',' IDENTIFIER ')' '''
    print(p)
    # { $$ = pform_make_branch_probe_expression(@1, $1, $3, $5); }
()
def p_branch_probe_expression_2(p):
    '''branch_probe_expression : IDENTIFIER '(' IDENTIFIER ')' '''
    print(p)
    # { $$ = pform_make_branch_probe_expression(@1, $1, $3); }
()
def p_expression_1(p):
    '''expression : expr_primary_or_typename '''
    print(p)
    # { $$ = $1; }
()
def p_expression_2(p):
    '''expression : inc_or_dec_expression '''
    print(p)
    # { $$ = $1; }
()
def p_expression_3(p):
    '''expression : inside_expression '''
    print(p)
    # { $$ = $1; }
()
def p_expression_4(p):
    '''expression : '+' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { $$ = $3; }
()
def p_expression_5(p):
    '''expression : '-' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('-', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_6(p):
    '''expression : '~' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('~', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_7(p):
    '''expression : '&' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('&', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_8(p):
    '''expression : '!' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('!', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_9(p):
    '''expression : '|' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('|', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_10(p):
    '''expression : '^' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('^', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_11(p):
    '''expression : '~' '&' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { yyerror(@1, "error: '~' '&'  is not a valid expression. "
    #           "Please use operator '~&' instead.");
    #   $$ = 0;
    #       }
()
def p_expression_12(p):
    '''expression : '~' '|' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { yyerror(@1, "error: '~' '|'  is not a valid expression. "
    #           "Please use operator '~|' instead.");
    #   $$ = 0;
    #       }
()
def p_expression_13(p):
    '''expression : '~' '^' attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { yyerror(@1, "error: '~' '^'  is not a valid expression. "
    #           "Please use operator '~^' instead.");
    #   $$ = 0;
    #       }
()
def p_expression_14(p):
    '''expression : K_NAND attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('A', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_15(p):
    '''expression : K_NOR attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('N', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_16(p):
    '''expression : K_NXOR attribute_list_opt expr_primary %prec UNARY_PREC '''
    print(p)
    # { PEUnary*tmp = new PEUnary('X', $3);
    #   FILE_NAME(tmp, @3);
    #   $$ = tmp;
    #       }
()
def p_expression_17(p):
    '''expression : '!' error %prec UNARY_PREC '''
    print(p)
    # { yyerror(@1, "error: Operand of unary ! "
    #           "is not a primary expression.");
    #   $$ = 0;
    #       }
()
def p_expression_18(p):
    '''expression : '^' error %prec UNARY_PREC '''
    print(p)
    # { yyerror(@1, "error: Operand of reduction ^ "
    #           "is not a primary expression.");
    #   $$ = 0;
    #       }
()
def p_expression_19(p):
    '''expression : expression '^' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('^', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_20(p):
    '''expression : expression K_POW attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBPower('p', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_21(p):
    '''expression : expression '*' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('*', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_22(p):
    '''expression : expression '/' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('/', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_23(p):
    '''expression : expression '%' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('%', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_24(p):
    '''expression : expression '+' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('+', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_25(p):
    '''expression : expression '-' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('-', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_26(p):
    '''expression : expression '&' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('&', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_27(p):
    '''expression : expression '|' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('|', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_28(p):
    '''expression : expression K_NAND attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('A', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_29(p):
    '''expression : expression K_NOR attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('O', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_30(p):
    '''expression : expression K_NXOR attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBinary('X', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_31(p):
    '''expression : expression '<' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('<', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_32(p):
    '''expression : expression '>' attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('>', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_33(p):
    '''expression : expression K_LS attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBShift('l', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_34(p):
    '''expression : expression K_RS attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBShift('r', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_35(p):
    '''expression : expression K_RSS attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBShift('R', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_36(p):
    '''expression : expression K_EQ attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('e', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_37(p):
    '''expression : expression K_CEQ attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('E', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_38(p):
    '''expression : expression K_WEQ attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('w', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_39(p):
    '''expression : expression K_LE attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('L', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_40(p):
    '''expression : expression K_GE attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('G', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_41(p):
    '''expression : expression K_NE attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('n', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_42(p):
    '''expression : expression K_CNE attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('N', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_43(p):
    '''expression : expression K_WNE attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBComp('W', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_44(p):
    '''expression : expression K_LOR attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBLogic('o', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_45(p):
    '''expression : expression K_LAND attribute_list_opt expression '''
    print(p)
    # { PEBinary*tmp = new PEBLogic('a', $1, $4);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expression_46(p):
    '''expression : expression '?' attribute_list_opt expression ':' expression '''
    print(p)
    # { PETernary*tmp = new PETernary($1, $4, $6);
    #   FILE_NAME(tmp, @2);
    #   $$ = tmp;
    #       }
()
def p_expr_mintypmax_1(p):
    '''expr_mintypmax : expression '''
    print(p)
    # { $$ = $1; }
()
def p_expr_mintypmax_2(p):
    '''expr_mintypmax : expression ':' expression ':' expression '''
    print(p)
    # { switch (min_typ_max_flag) {
    #                 case MIN:
    #                   $$ = $1;
    #                   delete $3;
    #                   delete $5;
    #                   break;
    #                 case TYP:
    #                   delete $1;
    #                   $$ = $3;
    #                   delete $5;
    #                   break;
    #                 case MAX:
    #                   delete $1;
    #                   delete $3;
    #                   $$ = $5;
    #                   break;
    #             }
    #             if (min_typ_max_warn > 0) {
    #                   cerr << $$->get_fileline() << ": warning: choosing ";
    #                   switch (min_typ_max_flag) {
    #                       case MIN:
    #                         cerr << "min";
    #                         break;
    #                       case TYP:
    #                         cerr << "typ";
    #                         break;
    #                       case MAX:
    #                         cerr << "max";
    #                         break;
    #                   }
    #                   cerr << " expression." << endl;
    #                   min_typ_max_warn -= 1;
    #             }
    #           }
()
def p_expression_list_with_nuls_1(p):
    '''expression_list_with_nuls : expression_list_with_nuls ',' expression '''
    print(p)
    # { list<PExpr*>*tmp = $1;
    #   tmp->push_back($3);
    #   $$ = tmp;
    #       }
()
def p_expression_list_with_nuls_2(p):
    '''expression_list_with_nuls : expression '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #   tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_expression_list_with_nuls_3(p):
    '''expression_list_with_nuls :  '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #         tmp->push_back(0);
    #   $$ = tmp;
    #       }
()
def p_expression_list_with_nuls_4(p):
    '''expression_list_with_nuls : expression_list_with_nuls ',' '''
    print(p)
    # { list<PExpr*>*tmp = $1;
    #   tmp->push_back(0);
    #   $$ = tmp;
    #       }
()
def p_expression_list_proper_1(p):
    '''expression_list_proper : expression_list_proper ',' expression '''
    print(p)
    # { list<PExpr*>*tmp = $1;
    #         tmp->push_back($3);
    #         $$ = tmp;
    #       }
()
def p_expression_list_proper_2(p):
    '''expression_list_proper : expression '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #   tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_or_typename_1(p):
    '''expr_primary_or_typename : expr_primary '''
    print(p)
()
def p_expr_primary_or_typename_2(p):
    '''expr_primary_or_typename : TYPE_IDENTIFIER '''
    print(p)
    # { PETypename*tmp = new PETypename($1.type);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #   delete[]$1.text;
    #       }
()
def p_expr_primary_1(p):
    '''expr_primary : number '''
    print(p)
    # { assert($1);
    #   PENumber*tmp = new PENumber($1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_2(p):
    '''expr_primary : REALTIME '''
    print(p)
    # { PEFNumber*tmp = new PEFNumber($1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_3(p):
    '''expr_primary : STRING '''
    print(p)
    # { PEString*tmp = new PEString($1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_4(p):
    '''expr_primary : TIME_LITERAL '''
    print(p)
    # { int unit;
    # 
    #           based_size = 0;
    #           $$         = 0;
    #           if ($1 == 0 || !get_time_unit($1, unit))
    #               yyerror(@1, "internal error: delay.");
    #           else {
    #               double p = pow(10.0, (double)(unit - pform_get_timeunit()));
    #               double time = atof($1) * p;
    # 
    #               verireal *v = new verireal(time);
    #               $$ = new PEFNumber(v);
    #               FILE_NAME($$, @1);
    #           }
    #       }
()
def p_expr_primary_5(p):
    '''expr_primary : SYSTEM_IDENTIFIER '''
    print(p)
    # { perm_string tn = lex_strings.make($1);
    #   PECallFunction*tmp = new PECallFunction(tn);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #   delete[]$1;
    #       }
()
def p_expr_primary_6(p):
    '''expr_primary : hierarchy_identifier '''
    print(p)
    # { PEIdent*tmp = pform_new_ident(*$1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #   delete $1;
    #       }
()
def p_expr_primary_7(p):
    '''expr_primary : PACKAGE_IDENTIFIER K_SCOPE_RES hierarchy_identifier '''
    print(p)
    # { $$ = pform_package_ident(@2, $1, $3);
    #   delete $3;
    #       }
()
def p_expr_primary_8(p):
    '''expr_primary : hierarchy_identifier '(' expression_list_with_nuls ')' '''
    print(p)
    # { list<PExpr*>*expr_list = $3;
    #   strip_tail_items(expr_list);
    #   PECallFunction*tmp = pform_make_call_function(@1, *$1, *expr_list);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_9(p):
    '''expr_primary : implicit_class_handle '.' hierarchy_identifier '(' expression_list_with_nuls ')' '''
    print(p)
    # { pform_name_t*t_name = $1;
    #   while (! $3->empty()) {
    #         t_name->push_back($3->front());
    #         $3->pop_front();
    #   }
    #   list<PExpr*>*expr_list = $5;
    #   strip_tail_items(expr_list);
    #   PECallFunction*tmp = pform_make_call_function(@1, *t_name, *expr_list);
    #   delete $1;
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_10(p):
    '''expr_primary : SYSTEM_IDENTIFIER '(' expression_list_proper ')' '''
    print(p)
    # { perm_string tn = lex_strings.make($1);
    #   PECallFunction*tmp = new PECallFunction(tn, *$3);
    #   FILE_NAME(tmp, @1);
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_11(p):
    '''expr_primary : PACKAGE_IDENTIFIER K_SCOPE_RES IDENTIFIER '(' expression_list_proper ')' '''
    print(p)
    # { perm_string use_name = lex_strings.make($3);
    #   PECallFunction*tmp = new PECallFunction($1, use_name, *$5);
    #   FILE_NAME(tmp, @3);
    #   delete[]$3;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_12(p):
    '''expr_primary : SYSTEM_IDENTIFIER '(' ')' '''
    print(p)
    # { perm_string tn = lex_strings.make($1);
    #   const vector<PExpr*>empty;
    #   PECallFunction*tmp = new PECallFunction(tn, empty);
    #   FILE_NAME(tmp, @1);
    #   delete[]$1;
    #   $$ = tmp;
    #   if (!gn_system_verilog()) {
    #         yyerror(@1, "error: Empty function argument list requires SystemVerilog.");
    #   }
    #       }
()
def p_expr_primary_13(p):
    '''expr_primary : implicit_class_handle '''
    print(p)
    # { PEIdent*tmp = new PEIdent(*$1);
    #   FILE_NAME(tmp,@1);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_14(p):
    '''expr_primary : implicit_class_handle '.' hierarchy_identifier '''
    print(p)
    # { pform_name_t*t_name = $1;
    #   while (! $3->empty()) {
    #         t_name->push_back($3->front());
    #         $3->pop_front();
    #   }
    #   PEIdent*tmp = new PEIdent(*t_name);
    #   FILE_NAME(tmp,@1);
    #   delete $1;
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_15(p):
    '''expr_primary : K_acos '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$acos");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_16(p):
    '''expr_primary : K_acosh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$acosh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_17(p):
    '''expr_primary : K_asin '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$asin");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_18(p):
    '''expr_primary : K_asinh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$asinh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_19(p):
    '''expr_primary : K_atan '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$atan");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_20(p):
    '''expr_primary : K_atanh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$atanh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_21(p):
    '''expr_primary : K_atan2 '(' expression ',' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$atan2");
    #   PECallFunction*tmp = make_call_function(tn, $3, $5);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_22(p):
    '''expr_primary : K_ceil '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$ceil");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_23(p):
    '''expr_primary : K_cos '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$cos");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_24(p):
    '''expr_primary : K_cosh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$cosh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_25(p):
    '''expr_primary : K_exp '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$exp");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_26(p):
    '''expr_primary : K_floor '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$floor");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_27(p):
    '''expr_primary : K_hypot '(' expression ',' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$hypot");
    #   PECallFunction*tmp = make_call_function(tn, $3, $5);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_28(p):
    '''expr_primary : K_ln '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$ln");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_29(p):
    '''expr_primary : K_log '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$log10");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_30(p):
    '''expr_primary : K_pow '(' expression ',' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$pow");
    #         PECallFunction*tmp = make_call_function(tn, $3, $5);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_31(p):
    '''expr_primary : K_sin '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$sin");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_32(p):
    '''expr_primary : K_sinh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$sinh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_33(p):
    '''expr_primary : K_sqrt '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$sqrt");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_34(p):
    '''expr_primary : K_tan '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$tan");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_35(p):
    '''expr_primary : K_tanh '(' expression ')' '''
    print(p)
    # { perm_string tn = perm_string::literal("$tanh");
    #   PECallFunction*tmp = make_call_function(tn, $3);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_36(p):
    '''expr_primary : K_abs '(' expression ')' '''
    print(p)
    # { PEUnary*tmp = new PEUnary('m', $3);
    #         FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_37(p):
    '''expr_primary : K_max '(' expression ',' expression ')' '''
    print(p)
    # { PEBinary*tmp = new PEBinary('M', $3, $5);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_38(p):
    '''expr_primary : K_min '(' expression ',' expression ')' '''
    print(p)
    # { PEBinary*tmp = new PEBinary('m', $3, $5);
    #   FILE_NAME(tmp,@1);
    #   $$ = tmp;
    #       }
()
def p_expr_primary_39(p):
    '''expr_primary : '(' expr_mintypmax ')' '''
    print(p)
    # { $$ = $2; }
()
def p_expr_primary_40(p):
    '''expr_primary : '{' expression_list_proper '}' '''
    print(p)
    # { PEConcat*tmp = new PEConcat(*$2);
    #   FILE_NAME(tmp, @1);
    #   delete $2;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_41(p):
    '''expr_primary : '{' expression '{' expression_list_proper '}' '}' '''
    print(p)
    # { PExpr*rep = $2;
    #   PEConcat*tmp = new PEConcat(*$4, rep);
    #   FILE_NAME(tmp, @1);
    #   delete $4;
    #   $$ = tmp;
    #       }
()
def p_expr_primary_42(p):
    '''expr_primary : '{' expression '{' expression_list_proper '}' error '}' '''
    print(p)
    # { PExpr*rep = $2;
    #   PEConcat*tmp = new PEConcat(*$4, rep);
    #   FILE_NAME(tmp, @1);
    #   delete $4;
    #   $$ = tmp;
    #   yyerror(@5, "error: Syntax error between internal '}' "
    #           "and closing '}' of repeat concatenation.");
    #   yyerrok;
    #       }
()
def p_expr_primary_43(p):
    '''expr_primary : '{' '}' '''
    print(p)
    # { // This is the empty queue syntax.
    #   if (gn_system_verilog()) {
    #         list<PExpr*> empty_list;
    #         PEConcat*tmp = new PEConcat(empty_list);
    #         FILE_NAME(tmp, @1);
    #         $$ = tmp;
    #   } else {
    #         yyerror(@1, "error: Concatenations are not allowed to be empty.");
    #         $$ = 0;
    #   }
    #       }
()
def p_expr_primary_44(p):
    '''expr_primary : expr_primary "'" '(' expression ')' '''
    print(p)
    # { PExpr*base = $4;
    #   if (gn_system_verilog()) {
    #         PECastSize*tmp = new PECastSize($1, base);
    #         FILE_NAME(tmp, @1);
    #         $$ = tmp;
    #   } else {
    #         yyerror(@1, "error: Size cast requires SystemVerilog.");
    #         $$ = base;
    #   }
    #       }
()
def p_expr_primary_45(p):
    '''expr_primary : simple_type_or_string "'" '(' expression ')' '''
    print(p)
    # { PExpr*base = $4;
    #   if (gn_system_verilog()) {
    #         PECastType*tmp = new PECastType($1, base);
    #         FILE_NAME(tmp, @1);
    #         $$ = tmp;
    #   } else {
    #         yyerror(@1, "error: Type cast requires SystemVerilog.");
    #         $$ = base;
    #   }
    #       }
()
def p_expr_primary_46(p):
    '''expr_primary : assignment_pattern '''
    print(p)
    # { $$ = $1; }
()
def p_expr_primary_47(p):
    '''expr_primary : streaming_concatenation '''
    print(p)
    # { $$ = $1; }
()
def p_expr_primary_48(p):
    '''expr_primary : K_null '''
    print(p)
    # { PENull*tmp = new PENull;
    #       FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_function_item_list_opt_1(p):
    '''function_item_list_opt : function_item_list '''
    print(p)
    # { $$ = $1; }
()
def p_function_item_list_opt_2(p):
    '''function_item_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_function_item_list_1(p):
    '''function_item_list : function_item '''
    print(p)
    # { $$ = $1; }
()
def p_function_item_list_2(p):
    '''function_item_list : function_item_list function_item '''
    print(p)
    # { /* */
    #   if ($1 && $2) {
    #         vector<pform_tf_port_t>*tmp = $1;
    #         size_t s1 = tmp->size();
    #         tmp->resize(s1 + $2->size());
    #         for (size_t idx = 0 ; idx < $2->size() ; idx += 1)
    #               tmp->at(s1+idx) = $2->at(idx);
    #         delete $2;
    #         $$ = tmp;
    #   } else if ($1) {
    #         $$ = $1;
    #   } else {
    #         $$ = $2;
    #   }
    #       }
()
def p_function_item_1(p):
    '''function_item : tf_port_declaration '''
    print(p)
    # { $$ = $1; }
()
def p_function_item_2(p):
    '''function_item : block_item_decl '''
    print(p)
    # { $$ = 0; }
()
def p_gate_instance_1(p):
    '''gate_instance : IDENTIFIER '(' expression_list_with_nuls ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #             tmp->name = $1;
    #             tmp->parms = $3;
    #             tmp->file  = @1.text;
    #             tmp->lineno = @1.first_line;
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_gate_instance_2(p):
    '''gate_instance : IDENTIFIER dimensions '(' expression_list_with_nuls ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #   list<pform_range_t>*rng = $2;
    #   tmp->name = $1;
    #   tmp->parms = $4;
    #   tmp->range = rng->front();
    #   rng->pop_front();
    #   assert(rng->empty());
    #   tmp->file  = @1.text;
    #   tmp->lineno = @1.first_line;
    #   delete[]$1;
    #   delete rng;
    #   $$ = tmp;
    #       }
()
def p_gate_instance_3(p):
    '''gate_instance : '(' expression_list_with_nuls ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #             tmp->name = "";
    #             tmp->parms = $2;
    #             tmp->file  = @1.text;
    #             tmp->lineno = @1.first_line;
    #             $$ = tmp;
    #           }
()
def p_gate_instance_4(p):
    '''gate_instance : IDENTIFIER dimensions '''
    print(p)
    # { lgate*tmp = new lgate;
    #   list<pform_range_t>*rng = $2;
    #   tmp->name = $1;
    #   tmp->parms = 0;
    #   tmp->parms_by_name = 0;
    #   tmp->range = rng->front();
    #   rng->pop_front();
    #   assert(rng->empty());
    #   tmp->file  = @1.text;
    #   tmp->lineno = @1.first_line;
    #   delete[]$1;
    #   delete rng;
    #   $$ = tmp;
    #       }
()
def p_gate_instance_5(p):
    '''gate_instance : IDENTIFIER '(' port_name_list ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #   tmp->name = $1;
    #   tmp->parms = 0;
    #   tmp->parms_by_name = $3;
    #   tmp->file  = @1.text;
    #   tmp->lineno = @1.first_line;
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_gate_instance_6(p):
    '''gate_instance : IDENTIFIER dimensions '(' port_name_list ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #   list<pform_range_t>*rng = $2;
    #   tmp->name = $1;
    #   tmp->parms = 0;
    #   tmp->parms_by_name = $4;
    #   tmp->range = rng->front();
    #   rng->pop_front();
    #   assert(rng->empty());
    #   tmp->file  = @1.text;
    #   tmp->lineno = @1.first_line;
    #   delete[]$1;
    #   delete rng;
    #   $$ = tmp;
    #       }
()
def p_gate_instance_7(p):
    '''gate_instance : IDENTIFIER '(' error ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #             tmp->name = $1;
    #             tmp->parms = 0;
    #             tmp->parms_by_name = 0;
    #             tmp->file  = @1.text;
    #             tmp->lineno = @1.first_line;
    #             yyerror(@2, "error: Syntax error in instance port "
    #                     "expression(s).");
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_gate_instance_8(p):
    '''gate_instance : IDENTIFIER dimensions '(' error ')' '''
    print(p)
    # { lgate*tmp = new lgate;
    #             tmp->name = $1;
    #             tmp->parms = 0;
    #             tmp->parms_by_name = 0;
    #             tmp->file  = @1.text;
    #             tmp->lineno = @1.first_line;
    #             yyerror(@3, "error: Syntax error in instance port "
    #                     "expression(s).");
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_gate_instance_list_1(p):
    '''gate_instance_list : gate_instance_list ',' gate_instance '''
    print(p)
    # { svector<lgate>*tmp1 = $1;
    #             lgate*tmp2 = $3;
    #             svector<lgate>*out = new svector<lgate> (*tmp1, *tmp2);
    #             delete tmp1;
    #             delete tmp2;
    #             $$ = out;
    #           }
()
def p_gate_instance_list_2(p):
    '''gate_instance_list : gate_instance '''
    print(p)
    # { svector<lgate>*tmp = new svector<lgate>(1);
    #             (*tmp)[0] = *$1;
    #             delete $1;
    #             $$ = tmp;
    #           }
()
def p_gatetype_1(p):
    '''gatetype : K_and '''
    print(p)
    # { $$ = PGBuiltin::AND; }
()
def p_gatetype_2(p):
    '''gatetype : K_nand '''
    print(p)
    # { $$ = PGBuiltin::NAND; }
()
def p_gatetype_3(p):
    '''gatetype : K_or '''
    print(p)
    # { $$ = PGBuiltin::OR; }
()
def p_gatetype_4(p):
    '''gatetype : K_nor '''
    print(p)
    # { $$ = PGBuiltin::NOR; }
()
def p_gatetype_5(p):
    '''gatetype : K_xor '''
    print(p)
    # { $$ = PGBuiltin::XOR; }
()
def p_gatetype_6(p):
    '''gatetype : K_xnor '''
    print(p)
    # { $$ = PGBuiltin::XNOR; }
()
def p_gatetype_7(p):
    '''gatetype : K_buf '''
    print(p)
    # { $$ = PGBuiltin::BUF; }
()
def p_gatetype_8(p):
    '''gatetype : K_bufif0 '''
    print(p)
    # { $$ = PGBuiltin::BUFIF0; }
()
def p_gatetype_9(p):
    '''gatetype : K_bufif1 '''
    print(p)
    # { $$ = PGBuiltin::BUFIF1; }
()
def p_gatetype_10(p):
    '''gatetype : K_not '''
    print(p)
    # { $$ = PGBuiltin::NOT; }
()
def p_gatetype_11(p):
    '''gatetype : K_notif0 '''
    print(p)
    # { $$ = PGBuiltin::NOTIF0; }
()
def p_gatetype_12(p):
    '''gatetype : K_notif1 '''
    print(p)
    # { $$ = PGBuiltin::NOTIF1; }
()
def p_switchtype_1(p):
    '''switchtype : K_nmos '''
    print(p)
    # { $$ = PGBuiltin::NMOS; }
()
def p_switchtype_2(p):
    '''switchtype : K_rnmos '''
    print(p)
    # { $$ = PGBuiltin::RNMOS; }
()
def p_switchtype_3(p):
    '''switchtype : K_pmos '''
    print(p)
    # { $$ = PGBuiltin::PMOS; }
()
def p_switchtype_4(p):
    '''switchtype : K_rpmos '''
    print(p)
    # { $$ = PGBuiltin::RPMOS; }
()
def p_switchtype_5(p):
    '''switchtype : K_cmos '''
    print(p)
    # { $$ = PGBuiltin::CMOS; }
()
def p_switchtype_6(p):
    '''switchtype : K_rcmos '''
    print(p)
    # { $$ = PGBuiltin::RCMOS; }
()
def p_switchtype_7(p):
    '''switchtype : K_tran '''
    print(p)
    # { $$ = PGBuiltin::TRAN; }
()
def p_switchtype_8(p):
    '''switchtype : K_rtran '''
    print(p)
    # { $$ = PGBuiltin::RTRAN; }
()
def p_switchtype_9(p):
    '''switchtype : K_tranif0 '''
    print(p)
    # { $$ = PGBuiltin::TRANIF0; }
()
def p_switchtype_10(p):
    '''switchtype : K_tranif1 '''
    print(p)
    # { $$ = PGBuiltin::TRANIF1; }
()
def p_switchtype_11(p):
    '''switchtype : K_rtranif0 '''
    print(p)
    # { $$ = PGBuiltin::RTRANIF0; }
()
def p_switchtype_12(p):
    '''switchtype : K_rtranif1 '''
    print(p)
    # { $$ = PGBuiltin::RTRANIF1; }
()
def p_hierarchy_identifier_1(p):
    '''hierarchy_identifier : IDENTIFIER '''
    print(p)
    # { $$ = new pform_name_t;
    #     $$->push_back(name_component_t(lex_strings.make($1)));
    #     delete[]$1;
    #   }
()
def p_hierarchy_identifier_2(p):
    '''hierarchy_identifier : hierarchy_identifier '.' IDENTIFIER '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     tmp->push_back(name_component_t(lex_strings.make($3)));
    #     delete[]$3;
    #     $$ = tmp;
    #   }
()
def p_hierarchy_identifier_3(p):
    '''hierarchy_identifier : hierarchy_identifier '[' expression ']' '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     name_component_t&tail = tmp->back();
    #     index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_BIT;
    #     itmp.msb = $3;
    #     tail.index.push_back(itmp);
    #     $$ = tmp;
    #   }
()
def p_hierarchy_identifier_4(p):
    '''hierarchy_identifier : hierarchy_identifier '[' '$' ']' '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     name_component_t&tail = tmp->back();
    #     if (! gn_system_verilog()) {
    #           yyerror(@3, "error: Last element expression ($) "
    #                   "requires SystemVerilog. Try enabling SystemVerilog.");
    #     }
    #     index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_BIT_LAST;
    #     itmp.msb = 0;
    #     itmp.lsb = 0;
    #     tail.index.push_back(itmp);
    #     $$ = tmp;
    #   }
()
def p_hierarchy_identifier_5(p):
    '''hierarchy_identifier : hierarchy_identifier '[' expression ':' expression ']' '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     name_component_t&tail = tmp->back();
    #     index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_PART;
    #     itmp.msb = $3;
    #     itmp.lsb = $5;
    #     tail.index.push_back(itmp);
    #     $$ = tmp;
    #   }
()
def p_hierarchy_identifier_6(p):
    '''hierarchy_identifier : hierarchy_identifier '[' expression K_PO_POS expression ']' '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     name_component_t&tail = tmp->back();
    #     index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_IDX_UP;
    #     itmp.msb = $3;
    #     itmp.lsb = $5;
    #     tail.index.push_back(itmp);
    #     $$ = tmp;
    #   }
()
def p_hierarchy_identifier_7(p):
    '''hierarchy_identifier : hierarchy_identifier '[' expression K_PO_NEG expression ']' '''
    print(p)
    # { pform_name_t * tmp = $1;
    #     name_component_t&tail = tmp->back();
    #     index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_IDX_DO;
    #     itmp.msb = $3;
    #     itmp.lsb = $5;
    #     tail.index.push_back(itmp);
    #     $$ = tmp;
    #   }
()
def p_list_of_identifiers_1(p):
    '''list_of_identifiers : IDENTIFIER '''
    print(p)
    # { $$ = list_from_identifier($1); }
()
def p_list_of_identifiers_2(p):
    '''list_of_identifiers : list_of_identifiers ',' IDENTIFIER '''
    print(p)
    # { $$ = list_from_identifier($1, $3); }
()
def p_list_of_port_identifiers_1(p):
    '''list_of_port_identifiers : IDENTIFIER dimensions_opt '''
    print(p)
    # { $$ = make_port_list($1, $2, 0); }
()
def p_list_of_port_identifiers_2(p):
    '''list_of_port_identifiers : list_of_port_identifiers ',' IDENTIFIER dimensions_opt '''
    print(p)
    # { $$ = make_port_list($1, $3, $4, 0); }
()
def p_list_of_variable_port_identifiers_1(p):
    '''list_of_variable_port_identifiers : IDENTIFIER dimensions_opt '''
    print(p)
    # { $$ = make_port_list($1, $2, 0); }
()
def p_list_of_variable_port_identifiers_2(p):
    '''list_of_variable_port_identifiers : IDENTIFIER dimensions_opt '=' expression '''
    print(p)
    # { $$ = make_port_list($1, $2, $4); }
()
def p_list_of_variable_port_identifiers_3(p):
    '''list_of_variable_port_identifiers : list_of_variable_port_identifiers ',' IDENTIFIER dimensions_opt '''
    print(p)
    # { $$ = make_port_list($1, $3, $4, 0); }
()
def p_list_of_variable_port_identifiers_4(p):
    '''list_of_variable_port_identifiers : list_of_variable_port_identifiers ',' IDENTIFIER dimensions_opt '=' expression '''
    print(p)
    # { $$ = make_port_list($1, $3, $4, $6); }
()
def p_list_of_ports_1(p):
    '''list_of_ports : port_opt '''
    print(p)
    # { vector<Module::port_t*>*tmp
    #                     = new vector<Module::port_t*>(1);
    #             (*tmp)[0] = $1;
    #             $$ = tmp;
    #           }
()
def p_list_of_ports_2(p):
    '''list_of_ports : list_of_ports ',' port_opt '''
    print(p)
    # { vector<Module::port_t*>*tmp = $1;
    #             tmp->push_back($3);
    #             $$ = tmp;
    #           }
()
def p_list_of_port_declarations_1(p):
    '''list_of_port_declarations : port_declaration '''
    print(p)
    # { vector<Module::port_t*>*tmp
    #                     = new vector<Module::port_t*>(1);
    #             (*tmp)[0] = $1;
    #             $$ = tmp;
    #           }
()
def p_list_of_port_declarations_2(p):
    '''list_of_port_declarations : list_of_port_declarations ',' port_declaration '''
    print(p)
    # { vector<Module::port_t*>*tmp = $1;
    #             tmp->push_back($3);
    #             $$ = tmp;
    #           }
()
def p_list_of_port_declarations_3(p):
    '''list_of_port_declarations : list_of_port_declarations ',' IDENTIFIER '''
    print(p)
    # { Module::port_t*ptmp;
    #             perm_string name = lex_strings.make($3);
    #             ptmp = pform_module_port_reference(name, @3.text,
    #                                                @3.first_line);
    #             vector<Module::port_t*>*tmp = $1;
    #             tmp->push_back(ptmp);
    # 
    #               /* Get the port declaration details, the port type
    #                  and what not, from context data stored by the
    #                  last port_declaration rule. */
    #             pform_module_define_port(@3, name,
    #                                   port_declaration_context.port_type,
    #                                   port_declaration_context.port_net_type,
    #                                   port_declaration_context.data_type, 0);
    #             delete[]$3;
    #             $$ = tmp;
    #           }
()
def p_list_of_port_declarations_4(p):
    '''list_of_port_declarations : list_of_port_declarations ',' '''
    print(p)
    # {
    #             yyerror(@2, "error: NULL port declarations are not "
    #                         "allowed.");
    #           }
()
def p_list_of_port_declarations_5(p):
    '''list_of_port_declarations : list_of_port_declarations ';' '''
    print(p)
    # {
    #             yyerror(@2, "error: ';' is an invalid port declaration "
    #                         "separator.");
    #           }
()
def p_port_declaration_1(p):
    '''port_declaration : attribute_list_opt K_input net_type_opt data_type_or_implicit IDENTIFIER dimensions_opt '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($5);
    #   data_type_t*use_type = $4;
    #   if ($6) use_type = new uarray_type_t(use_type, $6);
    #   ptmp = pform_module_port_reference(name, @2.text, @2.first_line);
    #   pform_module_define_port(@2, name, NetNet::PINPUT, $3, use_type, $1);
    #   port_declaration_context.port_type = NetNet::PINPUT;
    #   port_declaration_context.port_net_type = $3;
    #   port_declaration_context.data_type = $4;
    #   delete[]$5;
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_2(p):
    '''port_declaration : attribute_list_opt K_input K_wreal IDENTIFIER '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($4);
    #   ptmp = pform_module_port_reference(name, @2.text,
    #                                      @2.first_line);
    #   real_type_t*real_type = new real_type_t(real_type_t::REAL);
    #   FILE_NAME(real_type, @3);
    #   pform_module_define_port(@2, name, NetNet::PINPUT,
    #                            NetNet::WIRE, real_type, $1);
    #   port_declaration_context.port_type = NetNet::PINPUT;
    #   port_declaration_context.port_net_type = NetNet::WIRE;
    #   port_declaration_context.data_type = real_type;
    #   delete[]$4;
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_3(p):
    '''port_declaration : attribute_list_opt K_inout net_type_opt data_type_or_implicit IDENTIFIER dimensions_opt '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($5);
    #   ptmp = pform_module_port_reference(name, @2.text, @2.first_line);
    #   pform_module_define_port(@2, name, NetNet::PINOUT, $3, $4, $1);
    #   port_declaration_context.port_type = NetNet::PINOUT;
    #   port_declaration_context.port_net_type = $3;
    #   port_declaration_context.data_type = $4;
    #   delete[]$5;
    #   if ($6) {
    #         yyerror(@6, "sorry: Inout ports with unpacked dimensions not supported.");
    #         delete $6;
    #   }
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_4(p):
    '''port_declaration : attribute_list_opt K_inout K_wreal IDENTIFIER '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($4);
    #   ptmp = pform_module_port_reference(name, @2.text,
    #                                      @2.first_line);
    #   real_type_t*real_type = new real_type_t(real_type_t::REAL);
    #   FILE_NAME(real_type, @3);
    #   pform_module_define_port(@2, name, NetNet::PINOUT,
    #                            NetNet::WIRE, real_type, $1);
    #   port_declaration_context.port_type = NetNet::PINOUT;
    #   port_declaration_context.port_net_type = NetNet::WIRE;
    #   port_declaration_context.data_type = real_type;
    #   delete[]$4;
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_5(p):
    '''port_declaration : attribute_list_opt K_output net_type_opt data_type_or_implicit IDENTIFIER dimensions_opt '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($5);
    #   data_type_t*use_dtype = $4;
    #   if ($6) use_dtype = new uarray_type_t(use_dtype, $6);
    #   NetNet::Type use_type = $3;
    #   if (use_type == NetNet::IMPLICIT) {
    #         if (vector_type_t*dtype = dynamic_cast<vector_type_t*> ($4)) {
    #               if (dtype->reg_flag)
    #                     use_type = NetNet::REG;
    #               else if (dtype->implicit_flag)
    #                     use_type = NetNet::IMPLICIT;
    #               else
    #                     use_type = NetNet::IMPLICIT_REG;
    # 
    #                 // The SystemVerilog types that can show up as
    #                 // output ports are implicitly (on the inside)
    #                 // variables because "reg" is not valid syntax
    #                 // here.
    #         } else if (dynamic_cast<atom2_type_t*> ($4)) {
    #               use_type = NetNet::IMPLICIT_REG;
    #         } else if (dynamic_cast<struct_type_t*> ($4)) {
    #               use_type = NetNet::IMPLICIT_REG;
    #         } else if (enum_type_t*etype = dynamic_cast<enum_type_t*> ($4)) {
    #               if(etype->base_type == IVL_VT_LOGIC)
    #                   use_type = NetNet::IMPLICIT_REG;
    #         }
    #   }
    #   ptmp = pform_module_port_reference(name, @2.text, @2.first_line);
    #   pform_module_define_port(@2, name, NetNet::POUTPUT, use_type, use_dtype, $1);
    #   port_declaration_context.port_type = NetNet::POUTPUT;
    #   port_declaration_context.port_net_type = use_type;
    #   port_declaration_context.data_type = $4;
    #   delete[]$5;
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_6(p):
    '''port_declaration : attribute_list_opt K_output K_wreal IDENTIFIER '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($4);
    #   ptmp = pform_module_port_reference(name, @2.text,
    #                                      @2.first_line);
    #   real_type_t*real_type = new real_type_t(real_type_t::REAL);
    #   FILE_NAME(real_type, @3);
    #   pform_module_define_port(@2, name, NetNet::POUTPUT,
    #                            NetNet::WIRE, real_type, $1);
    #   port_declaration_context.port_type = NetNet::POUTPUT;
    #   port_declaration_context.port_net_type = NetNet::WIRE;
    #   port_declaration_context.data_type = real_type;
    #   delete[]$4;
    #   $$ = ptmp;
    #       }
()
def p_port_declaration_7(p):
    '''port_declaration : attribute_list_opt K_output net_type_opt data_type_or_implicit IDENTIFIER '=' expression '''
    print(p)
    # { Module::port_t*ptmp;
    #   perm_string name = lex_strings.make($5);
    #   NetNet::Type use_type = $3;
    #   if (use_type == NetNet::IMPLICIT) {
    #         if (vector_type_t*dtype = dynamic_cast<vector_type_t*> ($4)) {
    #               if (dtype->reg_flag)
    #                     use_type = NetNet::REG;
    #               else
    #                     use_type = NetNet::IMPLICIT_REG;
    #         } else {
    #               use_type = NetNet::IMPLICIT_REG;
    #         }
    #   }
    #   ptmp = pform_module_port_reference(name, @2.text, @2.first_line);
    #   pform_module_define_port(@2, name, NetNet::POUTPUT, use_type, $4, $1);
    #   port_declaration_context.port_type = NetNet::PINOUT;
    #   port_declaration_context.port_net_type = use_type;
    #   port_declaration_context.data_type = $4;
    # 
    #   pform_make_var_init(@5, name, $7);
    # 
    #   delete[]$5;
    #   $$ = ptmp;
    #       }
()
def p_net_type_opt_1(p):
    '''net_type_opt : net_type '''
    print(p)
    # { $$ = $1; }
()
def p_net_type_opt_2(p):
    '''net_type_opt :  '''
    print(p)
    # { $$ = NetNet::IMPLICIT; }
()
def p_unsigned_signed_opt_1(p):
    '''unsigned_signed_opt : K_signed '''
    print(p)
    # { $$ = true; }
()
def p_unsigned_signed_opt_2(p):
    '''unsigned_signed_opt : K_unsigned '''
    print(p)
    # { $$ = false; }
()
def p_unsigned_signed_opt_3(p):
    '''unsigned_signed_opt :  '''
    print(p)
    # { $$ = false; }
()
def p_signed_unsigned_opt_1(p):
    '''signed_unsigned_opt : K_signed '''
    print(p)
    # { $$ = true; }
()
def p_signed_unsigned_opt_2(p):
    '''signed_unsigned_opt : K_unsigned '''
    print(p)
    # { $$ = false; }
()
def p_signed_unsigned_opt_3(p):
    '''signed_unsigned_opt :  '''
    print(p)
    # { $$ = true; }
()
def p_atom2_type_1(p):
    '''atom2_type : K_byte '''
    print(p)
    # { $$ = 8; }
()
def p_atom2_type_2(p):
    '''atom2_type : K_shortint '''
    print(p)
    # { $$ = 16; }
()
def p_atom2_type_3(p):
    '''atom2_type : K_int '''
    print(p)
    # { $$ = 32; }
()
def p_atom2_type_4(p):
    '''atom2_type : K_longint '''
    print(p)
    # { $$ = 64; }
()
def p_lpvalue_1(p):
    '''lpvalue : hierarchy_identifier '''
    print(p)
    # { PEIdent*tmp = pform_new_ident(*$1);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #   delete $1;
    #       }
()
def p_lpvalue_2(p):
    '''lpvalue : implicit_class_handle '.' hierarchy_identifier '''
    print(p)
    # { pform_name_t*t_name = $1;
    #   while (!$3->empty()) {
    #         t_name->push_back($3->front());
    #         $3->pop_front();
    #   }
    #   PEIdent*tmp = new PEIdent(*t_name);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #   delete $1;
    #   delete $3;
    #       }
()
def p_lpvalue_3(p):
    '''lpvalue : '{' expression_list_proper '}' '''
    print(p)
    # { PEConcat*tmp = new PEConcat(*$2);
    #   FILE_NAME(tmp, @1);
    #   delete $2;
    #   $$ = tmp;
    #       }
()
def p_lpvalue_4(p):
    '''lpvalue : streaming_concatenation '''
    print(p)
    # { yyerror(@1, "sorry: streaming concatenation not supported in l-values.");
    #   $$ = 0;
    #       }
()
def p_cont_assign_1(p):
    '''cont_assign : lpvalue '=' expression '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #   tmp->push_back($1);
    #   tmp->push_back($3);
    #   $$ = tmp;
    #       }
()
def p_cont_assign_list_1(p):
    '''cont_assign_list : cont_assign_list ',' cont_assign '''
    print(p)
    # { list<PExpr*>*tmp = $1;
    #   tmp->splice(tmp->end(), *$3);
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_cont_assign_list_2(p):
    '''cont_assign_list : cont_assign '''
    print(p)
    # { $$ = $1; }
()
def p_module_1(p):
    '''module : attribute_list_opt module_start lifetime_opt IDENTIFIER _embed0_module module_package_import_list_opt module_parameter_port_list_opt module_port_list_opt module_attribute_foreign ';' _embed1_module timeunits_declaration_opt _embed2_module module_item_list_opt module_end _embed3_module endlabel_opt '''
    print(p)
    # { // Last step: check any closing name. This is done late so
    #   // that the parser can look ahead to detect the present
    #   // endlabel_opt but still have the pform_endmodule() called
    #   // early enough that the lexor can know we are outside the
    #   // module.
    #   if ($17) {
    #         if (strcmp($4,$17) != 0) {
    #               switch ($2) {
    #                   case K_module:
    #                     yyerror(@17, "error: End label doesn't match "
    #                                  "module name.");
    #                     break;
    #                   case K_program:
    #                     yyerror(@17, "error: End label doesn't match "
    #                                  "program name.");
    #                     break;
    #                   case K_interface:
    #                     yyerror(@17, "error: End label doesn't match "
    #                                  "interface name.");
    #                     break;
    #                   default:
    #                     break;
    #               }
    #         }
    #         if (($2 == K_module) && (! gn_system_verilog())) {
    #               yyerror(@8, "error: Module end labels require "
    #                            "SystemVerilog.");
    #         }
    #         delete[]$17;
    #   }
    #   delete[]$4;
    #       }
()
def p__embed0_module(p):
    '''_embed0_module : '''
    # { pform_startmodule(@2, $4, $2==K_program, $2==K_interface, $3, $1); }
()
def p__embed1_module(p):
    '''_embed1_module : '''
    # { pform_module_set_ports($8); }
()
def p__embed2_module(p):
    '''_embed2_module : '''
    # { pform_set_scope_timescale(@2); }
()
def p__embed3_module(p):
    '''_embed3_module : '''
    # { Module::UCDriveType ucd;
    #     // The lexor detected `unconnected_drive directives and
    #     // marked what it found in the uc_drive variable. Use that
    #     // to generate a UCD flag for the module.
    #   switch (uc_drive) {
    #       case UCD_NONE:
    #       default:
    #         ucd = Module::UCD_NONE;
    #         break;
    #       case UCD_PULL0:
    #         ucd = Module::UCD_PULL0;
    #         break;
    #       case UCD_PULL1:
    #         ucd = Module::UCD_PULL1;
    #         break;
    #   }
    #     // Check that program/endprogram and module/endmodule
    #     // keywords match.
    #   if ($2 != $15) {
    #         switch ($2) {
    #             case K_module:
    #               yyerror(@15, "error: module not closed by endmodule.");
    #               break;
    #             case K_program:
    #               yyerror(@15, "error: program not closed by endprogram.");
    #               break;
    #             case K_interface:
    #               yyerror(@15, "error: interface not closed by endinterface.");
    #               break;
    #             default:
    #               break;
    #         }
    #   }
    #   pform_endmodule($4, in_celldefine, ucd);
    #       }
()
def p_module_start_1(p):
    '''module_start : K_module '''
    print(p)
    # { $$ = K_module; }
()
def p_module_start_2(p):
    '''module_start : K_macromodule '''
    print(p)
    # { $$ = K_module; }
()
def p_module_start_3(p):
    '''module_start : K_program '''
    print(p)
    # { $$ = K_program; }
()
def p_module_start_4(p):
    '''module_start : K_interface '''
    print(p)
    # { $$ = K_interface; }
()
def p_module_end_1(p):
    '''module_end : K_endmodule '''
    print(p)
    # { $$ = K_module; }
()
def p_module_end_2(p):
    '''module_end : K_endprogram '''
    print(p)
    # { $$ = K_program; }
()
def p_module_end_3(p):
    '''module_end : K_endinterface '''
    print(p)
    # { $$ = K_interface; }
()
def p_endlabel_opt_1(p):
    '''endlabel_opt : ':' IDENTIFIER '''
    print(p)
    # { $$ = $2; }
()
def p_endlabel_opt_2(p):
    '''endlabel_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_module_attribute_foreign_1(p):
    '''module_attribute_foreign : K_PSTAR IDENTIFIER K_integer IDENTIFIER '=' STRING ';' K_STARP '''
    print(p)
    # { $$ = 0; }
()
def p_module_attribute_foreign_2(p):
    '''module_attribute_foreign :  '''
    print(p)
    # { $$ = 0; }
()
def p_module_port_list_opt_1(p):
    '''module_port_list_opt : '(' list_of_ports ')' '''
    print(p)
    # { $$ = $2; }
()
def p_module_port_list_opt_2(p):
    '''module_port_list_opt : '(' list_of_port_declarations ')' '''
    print(p)
    # { $$ = $2; }
()
def p_module_port_list_opt_3(p):
    '''module_port_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_module_port_list_opt_4(p):
    '''module_port_list_opt : '(' error ')' '''
    print(p)
    # { yyerror(@2, "Errors in port declarations.");
    #   yyerrok;
    #   $$ = 0;
    #       }
()
def p_module_parameter_port_list_opt_1(p):
    '''module_parameter_port_list_opt :  '''
    print(p)
()
def p_module_parameter_port_list_opt_2(p):
    '''module_parameter_port_list_opt : '#' '(' module_parameter_port_list ')' '''
    print(p)
()
def p_module_parameter_port_list_1(p):
    '''module_parameter_port_list : K_parameter param_type parameter_assign '''
    print(p)
()
def p_module_parameter_port_list_2(p):
    '''module_parameter_port_list : module_parameter_port_list ',' parameter_assign '''
    print(p)
()
def p_module_parameter_port_list_3(p):
    '''module_parameter_port_list : module_parameter_port_list ',' K_parameter param_type parameter_assign '''
    print(p)
()
def p_module_item_1(p):
    '''module_item : module '''
    print(p)
()
def p_module_item_2(p):
    '''module_item : attribute_list_opt net_type data_type_or_implicit delay3_opt net_variable_list ';' '''
    print(p)
    # { data_type_t*data_type = $3;
    #   if (data_type == 0) {
    #         data_type = new vector_type_t(IVL_VT_LOGIC, false, 0);
    #         FILE_NAME(data_type, @2);
    #   }
    #   pform_set_data_type(@2, data_type, $5, $2, $1);
    #   if ($4 != 0) {
    #         yyerror(@2, "sorry: net delays not supported.");
    #         delete $4;
    #   }
    #   delete $1;
    #       }
()
def p_module_item_3(p):
    '''module_item : attribute_list_opt K_wreal delay3 net_variable_list ';' '''
    print(p)
    # { real_type_t*tmpt = new real_type_t(real_type_t::REAL);
    #   pform_set_data_type(@2, tmpt, $4, NetNet::WIRE, $1);
    #   if ($3 != 0) {
    #         yyerror(@3, "sorry: net delays not supported.");
    #         delete $3;
    #   }
    #   delete $1;
    #       }
()
def p_module_item_4(p):
    '''module_item : attribute_list_opt K_wreal net_variable_list ';' '''
    print(p)
    # { real_type_t*tmpt = new real_type_t(real_type_t::REAL);
    #   pform_set_data_type(@2, tmpt, $3, NetNet::WIRE, $1);
    #   delete $1;
    #       }
()
def p_module_item_5(p):
    '''module_item : attribute_list_opt net_type data_type_or_implicit delay3_opt net_decl_assigns ';' '''
    print(p)
    # { data_type_t*data_type = $3;
    #   if (data_type == 0) {
    #         data_type = new vector_type_t(IVL_VT_LOGIC, false, 0);
    #         FILE_NAME(data_type, @2);
    #   }
    #   pform_makewire(@2, $4, str_strength, $5, $2, data_type);
    #   if ($1) {
    #         yywarn(@2, "Attributes are not supported on net declaration "
    #                "assignments and will be discarded.");
    #         delete $1;
    #   }
    #       }
()
def p_module_item_6(p):
    '''module_item : attribute_list_opt net_type data_type_or_implicit drive_strength net_decl_assigns ';' '''
    print(p)
    # { data_type_t*data_type = $3;
    #   if (data_type == 0) {
    #         data_type = new vector_type_t(IVL_VT_LOGIC, false, 0);
    #         FILE_NAME(data_type, @2);
    #   }
    #   pform_makewire(@2, 0, $4, $5, $2, data_type);
    #   if ($1) {
    #         yywarn(@2, "Attributes are not supported on net declaration "
    #                "assignments and will be discarded.");
    #         delete $1;
    #   }
    #       }
()
def p_module_item_7(p):
    '''module_item : attribute_list_opt K_wreal net_decl_assigns ';' '''
    print(p)
    # { real_type_t*data_type = new real_type_t(real_type_t::REAL);
    #         pform_makewire(@2, 0, str_strength, $3, NetNet::WIRE, data_type);
    #   if ($1) {
    #         yywarn(@2, "Attributes are not supported on net declaration "
    #                "assignments and will be discarded.");
    #         delete $1;
    #   }
    #       }
()
def p_module_item_8(p):
    '''module_item : K_trireg charge_strength_opt dimensions_opt delay3_opt list_of_identifiers ';' '''
    print(p)
    # { yyerror(@1, "sorry: trireg nets not supported.");
    #             delete $3;
    #             delete $4;
    #           }
()
def p_module_item_9(p):
    '''module_item : attribute_list_opt port_direction net_type data_type_or_implicit list_of_port_identifiers ';' '''
    print(p)
    # { pform_module_define_port(@2, $5, $2, $3, $4, $1); }
()
def p_module_item_10(p):
    '''module_item : attribute_list_opt port_direction K_wreal list_of_port_identifiers ';' '''
    print(p)
    # { real_type_t*real_type = new real_type_t(real_type_t::REAL);
    #   pform_module_define_port(@2, $4, $2, NetNet::WIRE, real_type, $1);
    #       }
()
def p_module_item_11(p):
    '''module_item : attribute_list_opt K_inout data_type_or_implicit list_of_port_identifiers ';' '''
    print(p)
    # { NetNet::Type use_type = $3 ? NetNet::IMPLICIT : NetNet::NONE;
    #   if (vector_type_t*dtype = dynamic_cast<vector_type_t*> ($3)) {
    #         if (dtype->implicit_flag)
    #               use_type = NetNet::NONE;
    #   }
    #   if (use_type == NetNet::NONE)
    #         pform_set_port_type(@2, $4, NetNet::PINOUT, $3, $1);
    #   else
    #         pform_module_define_port(@2, $4, NetNet::PINOUT, use_type, $3, $1);
    #       }
()
def p_module_item_12(p):
    '''module_item : attribute_list_opt K_input data_type_or_implicit list_of_port_identifiers ';' '''
    print(p)
    # { NetNet::Type use_type = $3 ? NetNet::IMPLICIT : NetNet::NONE;
    #   if (vector_type_t*dtype = dynamic_cast<vector_type_t*> ($3)) {
    #         if (dtype->implicit_flag)
    #               use_type = NetNet::NONE;
    #   }
    #   if (use_type == NetNet::NONE)
    #         pform_set_port_type(@2, $4, NetNet::PINPUT, $3, $1);
    #   else
    #         pform_module_define_port(@2, $4, NetNet::PINPUT, use_type, $3, $1);
    #       }
()
def p_module_item_13(p):
    '''module_item : attribute_list_opt K_output data_type_or_implicit list_of_variable_port_identifiers ';' '''
    print(p)
    # { NetNet::Type use_type = $3 ? NetNet::IMPLICIT : NetNet::NONE;
    #   if (vector_type_t*dtype = dynamic_cast<vector_type_t*> ($3)) {
    #         if (dtype->implicit_flag)
    #               use_type = NetNet::NONE;
    #         else if (dtype->reg_flag)
    #               use_type = NetNet::REG;
    #         else
    #               use_type = NetNet::IMPLICIT_REG;
    # 
    #           // The SystemVerilog types that can show up as
    #           // output ports are implicitly (on the inside)
    #           // variables because "reg" is not valid syntax
    #           // here.
    #   } else if (dynamic_cast<atom2_type_t*> ($3)) {
    #         use_type = NetNet::IMPLICIT_REG;
    #   } else if (dynamic_cast<struct_type_t*> ($3)) {
    #         use_type = NetNet::IMPLICIT_REG;
    #   } else if (enum_type_t*etype = dynamic_cast<enum_type_t*> ($3)) {
    #         if(etype->base_type == IVL_VT_LOGIC)
    #             use_type = NetNet::IMPLICIT_REG;
    #   }
    #   if (use_type == NetNet::NONE)
    #         pform_set_port_type(@2, $4, NetNet::POUTPUT, $3, $1);
    #   else
    #         pform_module_define_port(@2, $4, NetNet::POUTPUT, use_type, $3, $1);
    #       }
()
def p_module_item_14(p):
    '''module_item : attribute_list_opt port_direction net_type data_type_or_implicit error ';' '''
    print(p)
    # { yyerror(@2, "error: Invalid variable list in port declaration.");
    #   if ($1) delete $1;
    #   if ($4) delete $4;
    #   yyerrok;
    #       }
()
def p_module_item_15(p):
    '''module_item : attribute_list_opt K_inout data_type_or_implicit error ';' '''
    print(p)
    # { yyerror(@2, "error: Invalid variable list in port declaration.");
    #   if ($1) delete $1;
    #   if ($3) delete $3;
    #   yyerrok;
    #       }
()
def p_module_item_16(p):
    '''module_item : attribute_list_opt K_input data_type_or_implicit error ';' '''
    print(p)
    # { yyerror(@2, "error: Invalid variable list in port declaration.");
    #   if ($1) delete $1;
    #   if ($3) delete $3;
    #   yyerrok;
    #       }
()
def p_module_item_17(p):
    '''module_item : attribute_list_opt K_output data_type_or_implicit error ';' '''
    print(p)
    # { yyerror(@2, "error: Invalid variable list in port declaration.");
    #   if ($1) delete $1;
    #   if ($3) delete $3;
    #   yyerrok;
    #       }
()
def p_module_item_18(p):
    '''module_item : DISCIPLINE_IDENTIFIER list_of_identifiers ';' '''
    print(p)
    # { pform_attach_discipline(@1, $1, $2); }
()
def p_module_item_19(p):
    '''module_item : attribute_list_opt _embed0_module_item block_item_decl '''
    print(p)
    # { delete attributes_in_context;
    #   attributes_in_context = 0;
    #       }
()
def p_module_item_20(p):
    '''module_item : K_defparam _embed1_module_item defparam_assign_list ';' '''
    print(p)
()
def p_module_item_21(p):
    '''module_item : attribute_list_opt gatetype gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, str_strength, 0, $3, $1); }
()
def p_module_item_22(p):
    '''module_item : attribute_list_opt gatetype delay3 gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, str_strength, $3, $4, $1); }
()
def p_module_item_23(p):
    '''module_item : attribute_list_opt gatetype drive_strength gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, $3, 0, $4, $1); }
()
def p_module_item_24(p):
    '''module_item : attribute_list_opt gatetype drive_strength delay3 gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, $3, $4, $5, $1); }
()
def p_module_item_25(p):
    '''module_item : attribute_list_opt switchtype gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, str_strength, 0, $3, $1); }
()
def p_module_item_26(p):
    '''module_item : attribute_list_opt switchtype delay3 gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@2, $2, str_strength, $3, $4, $1); }
()
def p_module_item_27(p):
    '''module_item : K_pullup gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLUP, pull_strength, 0, $2, 0); }
()
def p_module_item_28(p):
    '''module_item : K_pulldown gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLDOWN, pull_strength, 0, $2, 0); }
()
def p_module_item_29(p):
    '''module_item : K_pullup '(' dr_strength1 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLUP, $3, 0, $5, 0); }
()
def p_module_item_30(p):
    '''module_item : K_pullup '(' dr_strength1 ',' dr_strength0 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLUP, $3, 0, $7, 0); }
()
def p_module_item_31(p):
    '''module_item : K_pullup '(' dr_strength0 ',' dr_strength1 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLUP, $5, 0, $7, 0); }
()
def p_module_item_32(p):
    '''module_item : K_pulldown '(' dr_strength0 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLDOWN, $3, 0, $5, 0); }
()
def p_module_item_33(p):
    '''module_item : K_pulldown '(' dr_strength1 ',' dr_strength0 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLDOWN, $5, 0, $7, 0); }
()
def p_module_item_34(p):
    '''module_item : K_pulldown '(' dr_strength0 ',' dr_strength1 ')' gate_instance_list ';' '''
    print(p)
    # { pform_makegates(@1, PGBuiltin::PULLDOWN, $3, 0, $7, 0); }
()
def p_module_item_35(p):
    '''module_item : attribute_list_opt IDENTIFIER parameter_value_opt gate_instance_list ';' '''
    print(p)
    # { perm_string tmp1 = lex_strings.make($2);
    #             pform_make_modgates(@2, tmp1, $3, $4, $1);
    #             delete[]$2;
    #           }
()
def p_module_item_36(p):
    '''module_item : attribute_list_opt IDENTIFIER parameter_value_opt error ';' '''
    print(p)
    # { yyerror(@2, "error: Invalid module instantiation");
    #             delete[]$2;
    #             if ($1) delete $1;
    #           }
()
def p_module_item_37(p):
    '''module_item : K_assign drive_strength_opt delay3_opt cont_assign_list ';' '''
    print(p)
    # { pform_make_pgassign_list($4, $3, $2, @1.text, @1.first_line); }
()
def p_module_item_38(p):
    '''module_item : attribute_list_opt K_always statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_ALWAYS, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_39(p):
    '''module_item : attribute_list_opt K_always_comb statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_ALWAYS_COMB, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_40(p):
    '''module_item : attribute_list_opt K_always_ff statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_ALWAYS_FF, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_41(p):
    '''module_item : attribute_list_opt K_always_latch statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_ALWAYS_LATCH, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_42(p):
    '''module_item : attribute_list_opt K_initial statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_INITIAL, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_43(p):
    '''module_item : attribute_list_opt K_final statement_item '''
    print(p)
    # { PProcess*tmp = pform_make_behavior(IVL_PR_FINAL, $3, $1);
    #   FILE_NAME(tmp, @2);
    #       }
()
def p_module_item_44(p):
    '''module_item : attribute_list_opt K_analog analog_statement '''
    print(p)
    # { pform_make_analog_behavior(@2, IVL_PR_ALWAYS, $3); }
()
def p_module_item_45(p):
    '''module_item : attribute_list_opt assertion_item '''
    print(p)
()
def p_module_item_46(p):
    '''module_item : timeunits_declaration '''
    print(p)
()
def p_module_item_47(p):
    '''module_item : class_declaration '''
    print(p)
()
def p_module_item_48(p):
    '''module_item : task_declaration '''
    print(p)
()
def p_module_item_49(p):
    '''module_item : function_declaration '''
    print(p)
()
def p_module_item_50(p):
    '''module_item : K_generate generate_item_list_opt K_endgenerate '''
    print(p)
    # { // Test for bad nesting. I understand it, but it is illegal.
    #        if (pform_parent_generate()) {
    #        cerr << @1 << ": error: Generate/endgenerate regions cannot nest." << endl;
    #        cerr << @1 << ":      : Try removing optional generate/endgenerate keywords," << endl;
    #        cerr << @1 << ":      : or move them to surround the parent generate scheme." << endl;
    #        error_count += 1;
    #   }
    #       }
()
def p_module_item_51(p):
    '''module_item : K_genvar list_of_identifiers ';' '''
    print(p)
    # { pform_genvars(@1, $2); }
()
def p_module_item_52(p):
    '''module_item : K_for '(' IDENTIFIER '=' expression ';' expression ';' IDENTIFIER '=' expression ')' _embed2_module_item generate_block '''
    print(p)
    # { pform_endgenerate(); }
()
def p_module_item_53(p):
    '''module_item : generate_if generate_block_opt K_else _embed3_module_item generate_block '''
    print(p)
    # { pform_endgenerate(); }
()
def p_module_item_54(p):
    '''module_item : generate_if generate_block_opt %prec less_than_K_else '''
    print(p)
    # { pform_endgenerate(); }
()
def p_module_item_55(p):
    '''module_item : K_case '(' expression ')' _embed4_module_item generate_case_items K_endcase '''
    print(p)
    # { pform_endgenerate(); }
()
def p_module_item_56(p):
    '''module_item : modport_declaration '''
    print(p)
()
def p_module_item_57(p):
    '''module_item : package_import_declaration '''
    print(p)
()
def p_module_item_58(p):
    '''module_item : attribute_list_opt K_specparam _embed5_module_item specparam_decl ';' '''
    print(p)
()
def p_module_item_59(p):
    '''module_item : K_specify _embed6_module_item specify_item_list_opt K_endspecify '''
    print(p)
()
def p_module_item_60(p):
    '''module_item : K_specify error K_endspecify '''
    print(p)
    # { yyerror(@1, "error: syntax error in specify block");
    #   yyerrok;
    #       }
()
def p_module_item_61(p):
    '''module_item : error ';' '''
    print(p)
    # { yyerror(@2, "error: invalid module item.");
    #             yyerrok;
    #           }
()
def p_module_item_62(p):
    '''module_item : K_assign error '=' expression ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error in left side "
    #                     "of continuous assignment.");
    #             yyerrok;
    #           }
()
def p_module_item_63(p):
    '''module_item : K_assign error ';' '''
    print(p)
    # { yyerror(@1, "error: syntax error in "
    #                     "continuous assignment");
    #             yyerrok;
    #           }
()
def p_module_item_64(p):
    '''module_item : K_function error K_endfunction endlabel_opt '''
    print(p)
    # { yyerror(@1, "error: I give up on this "
    #                     "function definition.");
    #             if ($4) {
    #                   if (!gn_system_verilog()) {
    #                         yyerror(@4, "error: Function end names require "
    #                                     "SystemVerilog.");
    #                   }
    #                   delete[]$4;
    #             }
    #             yyerrok;
    #           }
()
def p_module_item_65(p):
    '''module_item : KK_attribute '(' IDENTIFIER ',' STRING ',' STRING ')' ';' '''
    print(p)
    # { perm_string tmp3 = lex_strings.make($3);
    #             perm_string tmp5 = lex_strings.make($5);
    #             pform_set_attrib(tmp3, tmp5, $7);
    #             delete[] $3;
    #             delete[] $5;
    #           }
()
def p_module_item_66(p):
    '''module_item : KK_attribute '(' error ')' ';' '''
    print(p)
    # { yyerror(@1, "error: Malformed $attribute parameter list."); }
()
def p__embed0_module_item(p):
    '''_embed0_module_item : '''
    # { attributes_in_context = $1; }
()
def p__embed1_module_item(p):
    '''_embed1_module_item : '''
    # { if (pform_in_interface())
    #         yyerror(@1, "error: Parameter overrides are not allowed "
    #                     "in interfaces.");
    #       }
()
def p__embed2_module_item(p):
    '''_embed2_module_item : '''
    # { pform_start_generate_for(@1, $3, $5, $7, $9, $11); }
()
def p__embed3_module_item(p):
    '''_embed3_module_item : '''
    # { pform_start_generate_else(@1); }
()
def p__embed4_module_item(p):
    '''_embed4_module_item : '''
    # { pform_start_generate_case(@1, $3); }
()
def p__embed5_module_item(p):
    '''_embed5_module_item : '''
    # { if (pform_in_interface())
    #         yyerror(@1, "error: specparam declarations are not allowed "
    #                     "in interfaces.");
    #       }
()
def p__embed6_module_item(p):
    '''_embed6_module_item : '''
    # { if (pform_in_interface())
    #         yyerror(@1, "error: specify blocks are not allowed "
    #                     "in interfaces.");
    #       }
()
def p_module_item_list_1(p):
    '''module_item_list : module_item_list module_item '''
    print(p)
()
def p_module_item_list_2(p):
    '''module_item_list : module_item '''
    print(p)
()
def p_module_item_list_opt_1(p):
    '''module_item_list_opt : module_item_list '''
    print(p)
()
def p_module_item_list_opt_2(p):
    '''module_item_list_opt :  '''
    print(p)
()
def p_generate_if_1(p):
    '''generate_if : K_if '(' expression ')' '''
    print(p)
    # { pform_start_generate_if(@1, $3); }
()
def p_generate_case_items_1(p):
    '''generate_case_items : generate_case_items generate_case_item '''
    print(p)
()
def p_generate_case_items_2(p):
    '''generate_case_items : generate_case_item '''
    print(p)
()
def p_generate_case_item_1(p):
    '''generate_case_item : expression_list_proper ':' _embed0_generate_case_item generate_block_opt '''
    print(p)
    # { pform_endgenerate(); }
()
def p_generate_case_item_2(p):
    '''generate_case_item : K_default ':' _embed1_generate_case_item generate_block_opt '''
    print(p)
    # { pform_endgenerate(); }
()
def p__embed0_generate_case_item(p):
    '''_embed0_generate_case_item : '''
    # { pform_generate_case_item(@1, $1); }
()
def p__embed1_generate_case_item(p):
    '''_embed1_generate_case_item : '''
    # { pform_generate_case_item(@1, 0); }
()
def p_generate_item_1(p):
    '''generate_item : module_item '''
    print(p)
()
def p_generate_item_2(p):
    '''generate_item : K_begin generate_item_list_opt K_end '''
    print(p)
    # { /* Detect and warn about anachronistic begin/end use */
    #   if (generation_flag > GN_VER2001 && warn_anachronisms) {
    #         warn_count += 1;
    #         cerr << @1 << ": warning: Anachronistic use of begin/end to surround generate schemes." << endl;
    #   }
    #       }
()
def p_generate_item_3(p):
    '''generate_item : K_begin ':' IDENTIFIER _embed0_generate_item generate_item_list_opt K_end '''
    print(p)
    # { /* Detect and warn about anachronistic named begin/end use */
    #   if (generation_flag > GN_VER2001 && warn_anachronisms) {
    #         warn_count += 1;
    #         cerr << @1 << ": warning: Anachronistic use of named begin/end to surround generate schemes." << endl;
    #   }
    #   pform_endgenerate();
    #       }
()
def p__embed0_generate_item(p):
    '''_embed0_generate_item : '''
    # {
    #   pform_start_generate_nblock(@1, $3);
    #       }
()
def p_generate_item_list_1(p):
    '''generate_item_list : generate_item_list generate_item '''
    print(p)
()
def p_generate_item_list_2(p):
    '''generate_item_list : generate_item '''
    print(p)
()
def p_generate_item_list_opt_1(p):
    '''generate_item_list_opt : generate_item_list '''
    print(p)
()
def p_generate_item_list_opt_2(p):
    '''generate_item_list_opt :  '''
    print(p)
()
def p_generate_block_1(p):
    '''generate_block : module_item '''
    print(p)
()
def p_generate_block_2(p):
    '''generate_block : K_begin generate_item_list_opt K_end '''
    print(p)
()
def p_generate_block_3(p):
    '''generate_block : K_begin ':' IDENTIFIER generate_item_list_opt K_end endlabel_opt '''
    print(p)
    # { pform_generate_block_name($3);
    #   if ($6) {
    #         if (strcmp($3,$6) != 0) {
    #               yyerror(@6, "error: End label doesn't match "
    #                           "begin name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@6, "error: Begin end labels require "
    #                           "SystemVerilog.");
    #         }
    #         delete[]$6;
    #   }
    #   delete[]$3;
    #       }
()
def p_generate_block_opt_1(p):
    '''generate_block_opt : generate_block '''
    print(p)
()
def p_generate_block_opt_2(p):
    '''generate_block_opt : ';' '''
    print(p)
()
def p_net_decl_assign_1(p):
    '''net_decl_assign : IDENTIFIER '=' expression '''
    print(p)
    # { net_decl_assign_t*tmp = new net_decl_assign_t;
    #   tmp->next = tmp;
    #   tmp->name = lex_strings.make($1);
    #   tmp->expr = $3;
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_net_decl_assigns_1(p):
    '''net_decl_assigns : net_decl_assigns ',' net_decl_assign '''
    print(p)
    # { net_decl_assign_t*tmp = $1;
    #             $3->next = tmp->next;
    #             tmp->next = $3;
    #             $$ = tmp;
    #           }
()
def p_net_decl_assigns_2(p):
    '''net_decl_assigns : net_decl_assign '''
    print(p)
    # { $$ = $1;
    #           }
()
def p_bit_logic_1(p):
    '''bit_logic : K_logic '''
    print(p)
    # { $$ = IVL_VT_LOGIC; }
()
def p_bit_logic_2(p):
    '''bit_logic : K_bool '''
    print(p)
    # { $$ = IVL_VT_BOOL; /* Icarus misc */}
()
def p_bit_logic_3(p):
    '''bit_logic : K_bit '''
    print(p)
    # { $$ = IVL_VT_BOOL; /* IEEE1800 / IEEE1364-2009 */}
()
def p_bit_logic_opt_1(p):
    '''bit_logic_opt : bit_logic '''
    print(p)
()
def p_bit_logic_opt_2(p):
    '''bit_logic_opt :  '''
    print(p)
    # { $$ = IVL_VT_NO_TYPE; }
()
def p_net_type_1(p):
    '''net_type : K_wire '''
    print(p)
    # { $$ = NetNet::WIRE; }
()
def p_net_type_2(p):
    '''net_type : K_tri '''
    print(p)
    # { $$ = NetNet::TRI; }
()
def p_net_type_3(p):
    '''net_type : K_tri1 '''
    print(p)
    # { $$ = NetNet::TRI1; }
()
def p_net_type_4(p):
    '''net_type : K_supply0 '''
    print(p)
    # { $$ = NetNet::SUPPLY0; }
()
def p_net_type_5(p):
    '''net_type : K_wand '''
    print(p)
    # { $$ = NetNet::WAND; }
()
def p_net_type_6(p):
    '''net_type : K_triand '''
    print(p)
    # { $$ = NetNet::TRIAND; }
()
def p_net_type_7(p):
    '''net_type : K_tri0 '''
    print(p)
    # { $$ = NetNet::TRI0; }
()
def p_net_type_8(p):
    '''net_type : K_supply1 '''
    print(p)
    # { $$ = NetNet::SUPPLY1; }
()
def p_net_type_9(p):
    '''net_type : K_wor '''
    print(p)
    # { $$ = NetNet::WOR; }
()
def p_net_type_10(p):
    '''net_type : K_trior '''
    print(p)
    # { $$ = NetNet::TRIOR; }
()
def p_net_type_11(p):
    '''net_type : K_wone '''
    print(p)
    # { $$ = NetNet::UNRESOLVED_WIRE;
    #                 cerr << @1.text << ":" << @1.first_line << ": warning: "
    #                         "'wone' is deprecated, please use 'uwire' "
    #                         "instead." << endl;
    #               }
()
def p_net_type_12(p):
    '''net_type : K_uwire '''
    print(p)
    # { $$ = NetNet::UNRESOLVED_WIRE; }
()
def p_param_type_1(p):
    '''param_type : bit_logic_opt unsigned_signed_opt dimensions_opt '''
    print(p)
    # { param_active_range = $3;
    #   param_active_signed = $2;
    #   if (($1 == IVL_VT_NO_TYPE) && ($3 != 0))
    #         param_active_type = IVL_VT_LOGIC;
    #   else
    #         param_active_type = $1;
    #       }
()
def p_param_type_2(p):
    '''param_type : K_integer '''
    print(p)
    # { param_active_range = make_range_from_width(integer_width);
    #   param_active_signed = true;
    #   param_active_type = IVL_VT_LOGIC;
    #       }
()
def p_param_type_3(p):
    '''param_type : K_time '''
    print(p)
    # { param_active_range = make_range_from_width(64);
    #   param_active_signed = false;
    #   param_active_type = IVL_VT_LOGIC;
    #       }
()
def p_param_type_4(p):
    '''param_type : real_or_realtime '''
    print(p)
    # { param_active_range = 0;
    #   param_active_signed = true;
    #   param_active_type = IVL_VT_REAL;
    #       }
()
def p_param_type_5(p):
    '''param_type : atom2_type '''
    print(p)
    # { param_active_range = make_range_from_width($1);
    #   param_active_signed = true;
    #   param_active_type = IVL_VT_BOOL;
    #       }
()
def p_param_type_6(p):
    '''param_type : TYPE_IDENTIFIER '''
    print(p)
    # { pform_set_param_from_type(@1, $1.type, $1.text, param_active_range,
    #                             param_active_signed, param_active_type);
    #   delete[]$1.text;
    #       }
()
def p_parameter_assign_list_1(p):
    '''parameter_assign_list : parameter_assign '''
    print(p)
()
def p_parameter_assign_list_2(p):
    '''parameter_assign_list : parameter_assign_list ',' parameter_assign '''
    print(p)
()
def p_localparam_assign_list_1(p):
    '''localparam_assign_list : localparam_assign '''
    print(p)
()
def p_localparam_assign_list_2(p):
    '''localparam_assign_list : localparam_assign_list ',' localparam_assign '''
    print(p)
()
def p_parameter_assign_1(p):
    '''parameter_assign : IDENTIFIER '=' expression parameter_value_ranges_opt '''
    print(p)
    # { PExpr*tmp = $3;
    #   pform_set_parameter(@1, lex_strings.make($1), param_active_type,
    #                       param_active_signed, param_active_range, tmp, $4);
    #   delete[]$1;
    #       }
()
def p_localparam_assign_1(p):
    '''localparam_assign : IDENTIFIER '=' expression '''
    print(p)
    # { PExpr*tmp = $3;
    #   pform_set_localparam(@1, lex_strings.make($1), param_active_type,
    #                        param_active_signed, param_active_range, tmp);
    #   delete[]$1;
    #       }
()
def p_parameter_value_ranges_opt_1(p):
    '''parameter_value_ranges_opt : parameter_value_ranges '''
    print(p)
    # { $$ = $1; }
()
def p_parameter_value_ranges_opt_2(p):
    '''parameter_value_ranges_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_parameter_value_ranges_1(p):
    '''parameter_value_ranges : parameter_value_ranges parameter_value_range '''
    print(p)
    # { $$ = $2; $$->next = $1; }
()
def p_parameter_value_ranges_2(p):
    '''parameter_value_ranges : parameter_value_range '''
    print(p)
    # { $$ = $1; $$->next = 0; }
()
def p_parameter_value_range_1(p):
    '''parameter_value_range : from_exclude '[' value_range_expression ':' value_range_expression ']' '''
    print(p)
    # { $$ = pform_parameter_value_range($1, false, $3, false, $5); }
()
def p_parameter_value_range_2(p):
    '''parameter_value_range : from_exclude '[' value_range_expression ':' value_range_expression ')' '''
    print(p)
    # { $$ = pform_parameter_value_range($1, false, $3, true, $5); }
()
def p_parameter_value_range_3(p):
    '''parameter_value_range : from_exclude '(' value_range_expression ':' value_range_expression ']' '''
    print(p)
    # { $$ = pform_parameter_value_range($1, true, $3, false, $5); }
()
def p_parameter_value_range_4(p):
    '''parameter_value_range : from_exclude '(' value_range_expression ':' value_range_expression ')' '''
    print(p)
    # { $$ = pform_parameter_value_range($1, true, $3, true, $5); }
()
def p_parameter_value_range_5(p):
    '''parameter_value_range : K_exclude expression '''
    print(p)
    # { $$ = pform_parameter_value_range(true, false, $2, false, $2); }
()
def p_value_range_expression_1(p):
    '''value_range_expression : expression '''
    print(p)
    # { $$ = $1; }
()
def p_value_range_expression_2(p):
    '''value_range_expression : K_inf '''
    print(p)
    # { $$ = 0; }
()
def p_value_range_expression_3(p):
    '''value_range_expression : '+' K_inf '''
    print(p)
    # { $$ = 0; }
()
def p_value_range_expression_4(p):
    '''value_range_expression : '-' K_inf '''
    print(p)
    # { $$ = 0; }
()
def p_from_exclude_1(p):
    '''from_exclude : K_from '''
    print(p)
    # { $$ = false; }
()
def p_from_exclude_2(p):
    '''from_exclude : K_exclude '''
    print(p)
    # { $$ = true; }
()
def p_parameter_value_opt_1(p):
    '''parameter_value_opt : '#' '(' expression_list_with_nuls ')' '''
    print(p)
    # { struct parmvalue_t*tmp = new struct parmvalue_t;
    #             tmp->by_order = $3;
    #             tmp->by_name = 0;
    #             $$ = tmp;
    #           }
()
def p_parameter_value_opt_2(p):
    '''parameter_value_opt : '#' '(' parameter_value_byname_list ')' '''
    print(p)
    # { struct parmvalue_t*tmp = new struct parmvalue_t;
    #             tmp->by_order = 0;
    #             tmp->by_name = $3;
    #             $$ = tmp;
    #           }
()
def p_parameter_value_opt_3(p):
    '''parameter_value_opt : '#' DEC_NUMBER '''
    print(p)
    # { assert($2);
    #             PENumber*tmp = new PENumber($2);
    #             FILE_NAME(tmp, @1);
    # 
    #             struct parmvalue_t*lst = new struct parmvalue_t;
    #             lst->by_order = new list<PExpr*>;
    #             lst->by_order->push_back(tmp);
    #             lst->by_name = 0;
    #             $$ = lst;
    #             based_size = 0;
    #           }
()
def p_parameter_value_opt_4(p):
    '''parameter_value_opt : '#' REALTIME '''
    print(p)
    # { assert($2);
    #             PEFNumber*tmp = new PEFNumber($2);
    #             FILE_NAME(tmp, @1);
    # 
    #             struct parmvalue_t*lst = new struct parmvalue_t;
    #             lst->by_order = new list<PExpr*>;
    #             lst->by_order->push_back(tmp);
    #             lst->by_name = 0;
    #             $$ = lst;
    #           }
()
def p_parameter_value_opt_5(p):
    '''parameter_value_opt : '#' error '''
    print(p)
    # { yyerror(@1, "error: syntax error in parameter value "
    #                     "assignment list.");
    #             $$ = 0;
    #           }
()
def p_parameter_value_opt_6(p):
    '''parameter_value_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_parameter_value_byname_1(p):
    '''parameter_value_byname : '.' IDENTIFIER '(' expression ')' '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = $4;
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_parameter_value_byname_2(p):
    '''parameter_value_byname : '.' IDENTIFIER '(' ')' '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = 0;
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_parameter_value_byname_list_1(p):
    '''parameter_value_byname_list : parameter_value_byname '''
    print(p)
    # { list<named_pexpr_t>*tmp = new list<named_pexpr_t>;
    #   tmp->push_back(*$1);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_parameter_value_byname_list_2(p):
    '''parameter_value_byname_list : parameter_value_byname_list ',' parameter_value_byname '''
    print(p)
    # { list<named_pexpr_t>*tmp = $1;
    #   tmp->push_back(*$3);
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_port_1(p):
    '''port : port_reference '''
    print(p)
    # { $$ = $1; }
()
def p_port_2(p):
    '''port : '.' IDENTIFIER '(' port_reference ')' '''
    print(p)
    # { Module::port_t*tmp = $4;
    #             tmp->name = lex_strings.make($2);
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_3(p):
    '''port : '{' port_reference_list '}' '''
    print(p)
    # { Module::port_t*tmp = $2;
    #             tmp->name = perm_string();
    #             $$ = tmp;
    #           }
()
def p_port_4(p):
    '''port : '.' IDENTIFIER '(' '{' port_reference_list '}' ')' '''
    print(p)
    # { Module::port_t*tmp = $5;
    #             tmp->name = lex_strings.make($2);
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_opt_1(p):
    '''port_opt : port '''
    print(p)
    # { $$ = $1; }
()
def p_port_opt_2(p):
    '''port_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_port_name_1(p):
    '''port_name : '.' IDENTIFIER '(' expression ')' '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = $4;
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_name_2(p):
    '''port_name : '.' IDENTIFIER '(' error ')' '''
    print(p)
    # { yyerror(@3, "error: invalid port connection expression.");
    #             named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = 0;
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_name_3(p):
    '''port_name : '.' IDENTIFIER '(' ')' '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = 0;
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_name_4(p):
    '''port_name : '.' IDENTIFIER '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make($2);
    #             tmp->parm = new PEIdent(lex_strings.make($2), true);
    #             FILE_NAME(tmp->parm, @1);
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_port_name_5(p):
    '''port_name : K_DOTSTAR '''
    print(p)
    # { named_pexpr_t*tmp = new named_pexpr_t;
    #             tmp->name = lex_strings.make("*");
    #             tmp->parm = 0;
    #             $$ = tmp;
    #           }
()
def p_port_name_list_1(p):
    '''port_name_list : port_name_list ',' port_name '''
    print(p)
    # { list<named_pexpr_t>*tmp = $1;
    #         tmp->push_back(*$3);
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_port_name_list_2(p):
    '''port_name_list : port_name '''
    print(p)
    # { list<named_pexpr_t>*tmp = new list<named_pexpr_t>;
    #         tmp->push_back(*$1);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_port_reference_1(p):
    '''port_reference : IDENTIFIER '''
    print(p)
    # { Module::port_t*ptmp;
    #     perm_string name = lex_strings.make($1);
    #     ptmp = pform_module_port_reference(name, @1.text, @1.first_line);
    #     delete[]$1;
    #     $$ = ptmp;
    #   }
()
def p_port_reference_2(p):
    '''port_reference : IDENTIFIER '[' expression ':' expression ']' '''
    print(p)
    # { index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_PART;
    #     itmp.msb = $3;
    #     itmp.lsb = $5;
    # 
    #     name_component_t ntmp (lex_strings.make($1));
    #     ntmp.index.push_back(itmp);
    # 
    #     pform_name_t pname;
    #     pname.push_back(ntmp);
    # 
    #     PEIdent*wtmp = new PEIdent(pname);
    #     FILE_NAME(wtmp, @1);
    # 
    #     Module::port_t*ptmp = new Module::port_t;
    #     ptmp->name = perm_string();
    #     ptmp->expr.push_back(wtmp);
    # 
    #     delete[]$1;
    #     $$ = ptmp;
    #   }
()
def p_port_reference_3(p):
    '''port_reference : IDENTIFIER '[' expression ']' '''
    print(p)
    # { index_component_t itmp;
    #     itmp.sel = index_component_t::SEL_BIT;
    #     itmp.msb = $3;
    #     itmp.lsb = 0;
    # 
    #     name_component_t ntmp (lex_strings.make($1));
    #     ntmp.index.push_back(itmp);
    # 
    #     pform_name_t pname;
    #     pname.push_back(ntmp);
    # 
    #     PEIdent*tmp = new PEIdent(pname);
    #     FILE_NAME(tmp, @1);
    # 
    #     Module::port_t*ptmp = new Module::port_t;
    #     ptmp->name = perm_string();
    #     ptmp->expr.push_back(tmp);
    #     delete[]$1;
    #     $$ = ptmp;
    #   }
()
def p_port_reference_4(p):
    '''port_reference : IDENTIFIER '[' error ']' '''
    print(p)
    # { yyerror(@1, "error: invalid port bit select");
    #     Module::port_t*ptmp = new Module::port_t;
    #     PEIdent*wtmp = new PEIdent(lex_strings.make($1));
    #     FILE_NAME(wtmp, @1);
    #     ptmp->name = lex_strings.make($1);
    #     ptmp->expr.push_back(wtmp);
    #     delete[]$1;
    #     $$ = ptmp;
    #   }
()
def p_port_reference_list_1(p):
    '''port_reference_list : port_reference '''
    print(p)
    # { $$ = $1; }
()
def p_port_reference_list_2(p):
    '''port_reference_list : port_reference_list ',' port_reference '''
    print(p)
    # { Module::port_t*tmp = $1;
    #             append(tmp->expr, $3->expr);
    #             delete $3;
    #             $$ = tmp;
    #           }
()
def p_dimensions_opt_1(p):
    '''dimensions_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_dimensions_opt_2(p):
    '''dimensions_opt : dimensions '''
    print(p)
    # { $$ = $1; }
()
def p_dimensions_1(p):
    '''dimensions : variable_dimension '''
    print(p)
    # { $$ = $1; }
()
def p_dimensions_2(p):
    '''dimensions : dimensions variable_dimension '''
    print(p)
    # { list<pform_range_t> *tmp = $1;
    #   if ($2) {
    #         tmp->splice(tmp->end(), *$2);
    #         delete $2;
    #   }
    #   $$ = tmp;
    #       }
()
def p_register_variable_1(p):
    '''register_variable : IDENTIFIER dimensions_opt '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   pform_makewire(@1, name, NetNet::REG,
    #                  NetNet::NOT_A_PORT, IVL_VT_NO_TYPE, 0);
    #   pform_set_reg_idx(name, $2);
    #   $$ = $1;
    #       }
()
def p_register_variable_2(p):
    '''register_variable : IDENTIFIER dimensions_opt '=' expression '''
    print(p)
    # { if (pform_peek_scope()->var_init_needs_explicit_lifetime()
    #       && (var_lifetime == LexicalScope::INHERITED)) {
    #         cerr << @3 << ": warning: Static variable initialization requires "
    #                       "explicit lifetime in this context." << endl;
    #         warn_count += 1;
    #   }
    #   perm_string name = lex_strings.make($1);
    #   pform_makewire(@1, name, NetNet::REG,
    #                  NetNet::NOT_A_PORT, IVL_VT_NO_TYPE, 0);
    #   pform_set_reg_idx(name, $2);
    #   pform_make_var_init(@1, name, $4);
    #   $$ = $1;
    #       }
()
def p_register_variable_list_1(p):
    '''register_variable_list : register_variable '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($1));
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_register_variable_list_2(p):
    '''register_variable_list : register_variable_list ',' register_variable '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($3));
    #             $$ = tmp;
    #             delete[]$3;
    #           }
()
def p_net_variable_1(p):
    '''net_variable : IDENTIFIER dimensions_opt '''
    print(p)
    # { perm_string name = lex_strings.make($1);
    #   pform_makewire(@1, name, NetNet::IMPLICIT,
    #                  NetNet::NOT_A_PORT, IVL_VT_NO_TYPE, 0);
    #   pform_set_reg_idx(name, $2);
    #   $$ = $1;
    #       }
()
def p_net_variable_list_1(p):
    '''net_variable_list : net_variable '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($1));
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_net_variable_list_2(p):
    '''net_variable_list : net_variable_list ',' net_variable '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($3));
    #             $$ = tmp;
    #             delete[]$3;
    #           }
()
def p_event_variable_1(p):
    '''event_variable : IDENTIFIER dimensions_opt '''
    print(p)
    # { if ($2) {
    #         yyerror(@2, "sorry: event arrays are not supported.");
    #         delete $2;
    #   }
    #   $$ = $1;
    #       }
()
def p_event_variable_list_1(p):
    '''event_variable_list : event_variable '''
    print(p)
    # { $$ = list_from_identifier($1); }
()
def p_event_variable_list_2(p):
    '''event_variable_list : event_variable_list ',' event_variable '''
    print(p)
    # { $$ = list_from_identifier($1, $3); }
()
def p_specify_item_1(p):
    '''specify_item : K_specparam specparam_decl ';' '''
    print(p)
()
def p_specify_item_2(p):
    '''specify_item : specify_simple_path_decl ';' '''
    print(p)
    # { pform_module_specify_path($1);
    #           }
()
def p_specify_item_3(p):
    '''specify_item : specify_edge_path_decl ';' '''
    print(p)
    # { pform_module_specify_path($1);
    #           }
()
def p_specify_item_4(p):
    '''specify_item : K_if '(' expression ')' specify_simple_path_decl ';' '''
    print(p)
    # { PSpecPath*tmp = $5;
    #             if (tmp) {
    #                   tmp->conditional = true;
    #                   tmp->condition = $3;
    #             }
    #             pform_module_specify_path(tmp);
    #           }
()
def p_specify_item_5(p):
    '''specify_item : K_if '(' expression ')' specify_edge_path_decl ';' '''
    print(p)
    # { PSpecPath*tmp = $5;
    #             if (tmp) {
    #                   tmp->conditional = true;
    #                   tmp->condition = $3;
    #             }
    #             pform_module_specify_path(tmp);
    #           }
()
def p_specify_item_6(p):
    '''specify_item : K_ifnone specify_simple_path_decl ';' '''
    print(p)
    # { PSpecPath*tmp = $2;
    #             if (tmp) {
    #                   tmp->conditional = true;
    #                   tmp->condition = 0;
    #             }
    #             pform_module_specify_path(tmp);
    #           }
()
def p_specify_item_7(p):
    '''specify_item : K_ifnone specify_edge_path_decl ';' '''
    print(p)
    # { yyerror(@1, "Sorry: ifnone with an edge-sensitive path is "
    #                         "not supported.");
    #             yyerrok;
    #           }
()
def p_specify_item_8(p):
    '''specify_item : K_Sfullskew '(' spec_reference_event ',' spec_reference_event ',' delay_value ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #             delete $9;
    #           }
()
def p_specify_item_9(p):
    '''specify_item : K_Shold '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_10(p):
    '''specify_item : K_Snochange '(' spec_reference_event ',' spec_reference_event ',' delay_value ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #             delete $9;
    #           }
()
def p_specify_item_11(p):
    '''specify_item : K_Speriod '(' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $5;
    #           }
()
def p_specify_item_12(p):
    '''specify_item : K_Srecovery '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_13(p):
    '''specify_item : K_Srecrem '(' spec_reference_event ',' spec_reference_event ',' delay_value ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #             delete $9;
    #           }
()
def p_specify_item_14(p):
    '''specify_item : K_Sremoval '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_15(p):
    '''specify_item : K_Ssetup '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_16(p):
    '''specify_item : K_Ssetuphold '(' spec_reference_event ',' spec_reference_event ',' delay_value ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #             delete $9;
    #           }
()
def p_specify_item_17(p):
    '''specify_item : K_Sskew '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_18(p):
    '''specify_item : K_Stimeskew '(' spec_reference_event ',' spec_reference_event ',' delay_value spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $7;
    #           }
()
def p_specify_item_19(p):
    '''specify_item : K_Swidth '(' spec_reference_event ',' delay_value ',' expression spec_notifier_opt ')' ';' '''
    print(p)
    # { delete $5;
    #             delete $7;
    #           }
()
def p_specify_item_20(p):
    '''specify_item : K_Swidth '(' spec_reference_event ',' delay_value ')' ';' '''
    print(p)
    # { delete $5;
    #           }
()
def p_specify_item_21(p):
    '''specify_item : K_pulsestyle_onevent specify_path_identifiers ';' '''
    print(p)
    # { delete $2;
    #           }
()
def p_specify_item_22(p):
    '''specify_item : K_pulsestyle_ondetect specify_path_identifiers ';' '''
    print(p)
    # { delete $2;
    #           }
()
def p_specify_item_23(p):
    '''specify_item : K_showcancelled specify_path_identifiers ';' '''
    print(p)
    # { delete $2;
    #           }
()
def p_specify_item_24(p):
    '''specify_item : K_noshowcancelled specify_path_identifiers ';' '''
    print(p)
    # { delete $2;
    #           }
()
def p_specify_item_list_1(p):
    '''specify_item_list : specify_item '''
    print(p)
()
def p_specify_item_list_2(p):
    '''specify_item_list : specify_item_list specify_item '''
    print(p)
()
def p_specify_item_list_opt_1(p):
    '''specify_item_list_opt :  '''
    print(p)
    # {  }
()
def p_specify_item_list_opt_2(p):
    '''specify_item_list_opt : specify_item_list '''
    print(p)
    # {  }
()
def p_specify_edge_path_decl_1(p):
    '''specify_edge_path_decl : specify_edge_path '=' '(' delay_value_list ')' '''
    print(p)
    # { $$ = pform_assign_path_delay($1, $4); }
()
def p_specify_edge_path_decl_2(p):
    '''specify_edge_path_decl : specify_edge_path '=' delay_value_simple '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             $$ = pform_assign_path_delay($1, tmp);
    #           }
()
def p_edge_operator_1(p):
    '''edge_operator : K_posedge '''
    print(p)
    # { $$ = true; }
()
def p_edge_operator_2(p):
    '''edge_operator : K_negedge '''
    print(p)
    # { $$ = false; }
()
def p_specify_edge_path_1(p):
    '''specify_edge_path : '(' specify_path_identifiers spec_polarity K_EG '(' specify_path_identifiers polarity_operator expression ')' ')' '''
    print(p)
    # { int edge_flag = 0;
    #                 $$ = pform_make_specify_edge_path(@1, edge_flag, $2, $3, false, $6, $8); }
()
def p_specify_edge_path_2(p):
    '''specify_edge_path : '(' edge_operator specify_path_identifiers spec_polarity K_EG '(' specify_path_identifiers polarity_operator expression ')' ')' '''
    print(p)
    # { int edge_flag = $2? 1 : -1;
    #                 $$ = pform_make_specify_edge_path(@1, edge_flag, $3, $4, false, $7, $9);}
()
def p_specify_edge_path_3(p):
    '''specify_edge_path : '(' specify_path_identifiers spec_polarity K_SG '(' specify_path_identifiers polarity_operator expression ')' ')' '''
    print(p)
    # { int edge_flag = 0;
    #                 $$ = pform_make_specify_edge_path(@1, edge_flag, $2, $3, true, $6, $8); }
()
def p_specify_edge_path_4(p):
    '''specify_edge_path : '(' edge_operator specify_path_identifiers spec_polarity K_SG '(' specify_path_identifiers polarity_operator expression ')' ')' '''
    print(p)
    # { int edge_flag = $2? 1 : -1;
    #                 $$ = pform_make_specify_edge_path(@1, edge_flag, $3, $4, true, $7, $9); }
()
def p_polarity_operator_1(p):
    '''polarity_operator : K_PO_POS '''
    print(p)
()
def p_polarity_operator_2(p):
    '''polarity_operator : K_PO_NEG '''
    print(p)
()
def p_polarity_operator_3(p):
    '''polarity_operator : ':' '''
    print(p)
()
def p_specify_simple_path_decl_1(p):
    '''specify_simple_path_decl : specify_simple_path '=' '(' delay_value_list ')' '''
    print(p)
    # { $$ = pform_assign_path_delay($1, $4); }
()
def p_specify_simple_path_decl_2(p):
    '''specify_simple_path_decl : specify_simple_path '=' delay_value_simple '''
    print(p)
    # { list<PExpr*>*tmp = new list<PExpr*>;
    #             tmp->push_back($3);
    #             $$ = pform_assign_path_delay($1, tmp);
    #           }
()
def p_specify_simple_path_decl_3(p):
    '''specify_simple_path_decl : specify_simple_path '=' '(' error ')' '''
    print(p)
    # { yyerror(@3, "Syntax error in delay value list.");
    #             yyerrok;
    #             $$ = 0;
    #           }
()
def p_specify_simple_path_1(p):
    '''specify_simple_path : '(' specify_path_identifiers spec_polarity K_EG specify_path_identifiers ')' '''
    print(p)
    # { $$ = pform_make_specify_path(@1, $2, $3, false, $5); }
()
def p_specify_simple_path_2(p):
    '''specify_simple_path : '(' specify_path_identifiers spec_polarity K_SG specify_path_identifiers ')' '''
    print(p)
    # { $$ = pform_make_specify_path(@1, $2, $3, true, $5); }
()
def p_specify_simple_path_3(p):
    '''specify_simple_path : '(' error ')' '''
    print(p)
    # { yyerror(@1, "Invalid simple path");
    #             yyerrok;
    #           }
()
def p_specify_path_identifiers_1(p):
    '''specify_path_identifiers : IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($1));
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_specify_path_identifiers_2(p):
    '''specify_path_identifiers : IDENTIFIER '[' expr_primary ']' '''
    print(p)
    # { if (gn_specify_blocks_flag) {
    #                   yywarn(@4, "Bit selects are not currently supported "
    #                              "in path declarations. The declaration "
    #                              "will be applied to the whole vector.");
    #             }
    #             list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($1));
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_specify_path_identifiers_3(p):
    '''specify_path_identifiers : IDENTIFIER '[' expr_primary polarity_operator expr_primary ']' '''
    print(p)
    # { if (gn_specify_blocks_flag) {
    #                   yywarn(@4, "Part selects are not currently supported "
    #                              "in path declarations. The declaration "
    #                              "will be applied to the whole vector.");
    #             }
    #             list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($1));
    #             $$ = tmp;
    #             delete[]$1;
    #           }
()
def p_specify_path_identifiers_4(p):
    '''specify_path_identifiers : specify_path_identifiers ',' IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($3));
    #             $$ = tmp;
    #             delete[]$3;
    #           }
()
def p_specify_path_identifiers_5(p):
    '''specify_path_identifiers : specify_path_identifiers ',' IDENTIFIER '[' expr_primary ']' '''
    print(p)
    # { if (gn_specify_blocks_flag) {
    #                   yywarn(@4, "Bit selects are not currently supported "
    #                              "in path declarations. The declaration "
    #                              "will be applied to the whole vector.");
    #             }
    #             list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($3));
    #             $$ = tmp;
    #             delete[]$3;
    #           }
()
def p_specify_path_identifiers_6(p):
    '''specify_path_identifiers : specify_path_identifiers ',' IDENTIFIER '[' expr_primary polarity_operator expr_primary ']' '''
    print(p)
    # { if (gn_specify_blocks_flag) {
    #                   yywarn(@4, "Part selects are not currently supported "
    #                              "in path declarations. The declaration "
    #                              "will be applied to the whole vector.");
    #             }
    #             list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($3));
    #             $$ = tmp;
    #             delete[]$3;
    #           }
()
def p_specparam_1(p):
    '''specparam : IDENTIFIER '=' expression '''
    print(p)
    # { PExpr*tmp = $3;
    #             pform_set_specparam(@1, lex_strings.make($1),
    #                                 param_active_range, tmp);
    #             delete[]$1;
    #           }
()
def p_specparam_2(p):
    '''specparam : IDENTIFIER '=' expression ':' expression ':' expression '''
    print(p)
    # { PExpr*tmp = 0;
    #             switch (min_typ_max_flag) {
    #                 case MIN:
    #                   tmp = $3;
    #                   delete $5;
    #                   delete $7;
    #                   break;
    #                 case TYP:
    #                   delete $3;
    #                   tmp = $5;
    #                   delete $7;
    #                   break;
    #                 case MAX:
    #                   delete $3;
    #                   delete $5;
    #                   tmp = $7;
    #                   break;
    #             }
    #             if (min_typ_max_warn > 0) {
    #                   cerr << tmp->get_fileline() << ": warning: choosing ";
    #                   switch (min_typ_max_flag) {
    #                       case MIN:
    #                         cerr << "min";
    #                         break;
    #                       case TYP:
    #                         cerr << "typ";
    #                         break;
    #                       case MAX:
    #                         cerr << "max";
    #                         break;
    #                   }
    #                   cerr << " expression." << endl;
    #                   min_typ_max_warn -= 1;
    #             }
    #             pform_set_specparam(@1, lex_strings.make($1),
    #                                 param_active_range, tmp);
    #             delete[]$1;
    #           }
()
def p_specparam_3(p):
    '''specparam : PATHPULSE_IDENTIFIER '=' expression '''
    print(p)
    # { delete[]$1;
    #             delete $3;
    #           }
()
def p_specparam_4(p):
    '''specparam : PATHPULSE_IDENTIFIER '=' '(' expression ',' expression ')' '''
    print(p)
    # { delete[]$1;
    #             delete $4;
    #             delete $6;
    #           }
()
def p_specparam_list_1(p):
    '''specparam_list : specparam '''
    print(p)
()
def p_specparam_list_2(p):
    '''specparam_list : specparam_list ',' specparam '''
    print(p)
()
def p_specparam_decl_1(p):
    '''specparam_decl : specparam_list '''
    print(p)
()
def p_specparam_decl_2(p):
    '''specparam_decl : dimensions _embed0_specparam_decl specparam_list '''
    print(p)
    # { param_active_range = 0; }
()
def p__embed0_specparam_decl(p):
    '''_embed0_specparam_decl : '''
    # { param_active_range = $1; }
()
def p_spec_polarity_1(p):
    '''spec_polarity : '+' '''
    print(p)
    # { $$ = '+'; }
()
def p_spec_polarity_2(p):
    '''spec_polarity : '-' '''
    print(p)
    # { $$ = '-'; }
()
def p_spec_polarity_3(p):
    '''spec_polarity :  '''
    print(p)
    # { $$ = 0;   }
()
def p_spec_reference_event_1(p):
    '''spec_reference_event : K_posedge expression '''
    print(p)
    # { delete $2; }
()
def p_spec_reference_event_2(p):
    '''spec_reference_event : K_negedge expression '''
    print(p)
    # { delete $2; }
()
def p_spec_reference_event_3(p):
    '''spec_reference_event : K_posedge expr_primary K_TAND expression '''
    print(p)
    # { delete $2;
    #       delete $4;
    #     }
()
def p_spec_reference_event_4(p):
    '''spec_reference_event : K_negedge expr_primary K_TAND expression '''
    print(p)
    # { delete $2;
    #       delete $4;
    #     }
()
def p_spec_reference_event_5(p):
    '''spec_reference_event : K_edge '[' edge_descriptor_list ']' expr_primary '''
    print(p)
    # { delete $5; }
()
def p_spec_reference_event_6(p):
    '''spec_reference_event : K_edge '[' edge_descriptor_list ']' expr_primary K_TAND expression '''
    print(p)
    # { delete $5;
    #       delete $7;
    #     }
()
def p_spec_reference_event_7(p):
    '''spec_reference_event : expr_primary K_TAND expression '''
    print(p)
    # { delete $1;
    #       delete $3;
    #     }
()
def p_spec_reference_event_8(p):
    '''spec_reference_event : expr_primary '''
    print(p)
    # { delete $1; }
()
def p_edge_descriptor_list_1(p):
    '''edge_descriptor_list : edge_descriptor_list ',' K_edge_descriptor '''
    print(p)
()
def p_edge_descriptor_list_2(p):
    '''edge_descriptor_list : K_edge_descriptor '''
    print(p)
()
def p_spec_notifier_opt_1(p):
    '''spec_notifier_opt :  '''
    print(p)
    # {  }
()
def p_spec_notifier_opt_2(p):
    '''spec_notifier_opt : spec_notifier '''
    print(p)
    # {  }
()
def p_spec_notifier_1(p):
    '''spec_notifier : ',' '''
    print(p)
    # { args_after_notifier = 0; }
()
def p_spec_notifier_2(p):
    '''spec_notifier : ',' hierarchy_identifier '''
    print(p)
    # { args_after_notifier = 0; delete $2; }
()
def p_spec_notifier_3(p):
    '''spec_notifier : spec_notifier ',' '''
    print(p)
    # {  args_after_notifier += 1; }
()
def p_spec_notifier_4(p):
    '''spec_notifier : spec_notifier ',' hierarchy_identifier '''
    print(p)
    # { args_after_notifier += 1;
    #             if (args_after_notifier >= 3)  {
    #                     cerr << @3 << ": warning: timing checks are not supported "
    #                             "and delayed signal \"" << *$3
    #                    << "\" will not be driven." << endl;
    #             }
    #                   delete $3; }
()
def p_spec_notifier_5(p):
    '''spec_notifier : IDENTIFIER '''
    print(p)
    # { args_after_notifier = 0; delete[]$1; }
()
def p_statement_item_1(p):
    '''statement_item : K_assign lpvalue '=' expression ';' '''
    print(p)
    # { PCAssign*tmp = new PCAssign($2, $4);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_2(p):
    '''statement_item : K_deassign lpvalue ';' '''
    print(p)
    # { PDeassign*tmp = new PDeassign($2);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_3(p):
    '''statement_item : K_force lpvalue '=' expression ';' '''
    print(p)
    # { PForce*tmp = new PForce($2, $4);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_4(p):
    '''statement_item : K_release lpvalue ';' '''
    print(p)
    # { PRelease*tmp = new PRelease($2);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_5(p):
    '''statement_item : K_begin K_end '''
    print(p)
    # { PBlock*tmp = new PBlock(PBlock::BL_SEQ);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_6(p):
    '''statement_item : K_begin _embed0_statement_item block_item_decls_opt _embed1_statement_item statement_or_null_list K_end '''
    print(p)
    # { PBlock*tmp;
    #   if ($3) {
    #       pform_pop_scope();
    #       assert(! current_block_stack.empty());
    #       tmp = current_block_stack.top();
    #       current_block_stack.pop();
    #   } else {
    #       tmp = new PBlock(PBlock::BL_SEQ);
    #       FILE_NAME(tmp, @1);
    #   }
    #   if ($5) tmp->set_statement(*$5);
    #   delete $5;
    #   $$ = tmp;
    #       }
()
def p_statement_item_7(p):
    '''statement_item : K_begin ':' IDENTIFIER _embed2_statement_item block_item_decls_opt statement_or_null_list_opt K_end endlabel_opt '''
    print(p)
    # { pform_pop_scope();
    #   assert(! current_block_stack.empty());
    #   PBlock*tmp = current_block_stack.top();
    #   current_block_stack.pop();
    #   if ($6) tmp->set_statement(*$6);
    #   delete $6;
    #   if ($8) {
    #         if (strcmp($3,$8) != 0) {
    #               yyerror(@8, "error: End label doesn't match begin name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@8, "error: Begin end labels require "
    #                           "SystemVerilog.");
    #         }
    #         delete[]$8;
    #   }
    #   delete[]$3;
    #   $$ = tmp;
    #       }
()
def p_statement_item_8(p):
    '''statement_item : K_fork join_keyword '''
    print(p)
    # { PBlock*tmp = new PBlock($2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_9(p):
    '''statement_item : K_fork _embed3_statement_item block_item_decls_opt _embed4_statement_item statement_or_null_list join_keyword '''
    print(p)
    # { PBlock*tmp;
    #   if ($3) {
    #       pform_pop_scope();
    #       assert(! current_block_stack.empty());
    #       tmp = current_block_stack.top();
    #       current_block_stack.pop();
    #       tmp->set_join_type($6);
    #   } else {
    #       tmp = new PBlock($6);
    #       FILE_NAME(tmp, @1);
    #   }
    #   if ($5) tmp->set_statement(*$5);
    #   delete $5;
    #   $$ = tmp;
    #       }
()
def p_statement_item_10(p):
    '''statement_item : K_fork ':' IDENTIFIER _embed5_statement_item block_item_decls_opt statement_or_null_list_opt join_keyword endlabel_opt '''
    print(p)
    # { pform_pop_scope();
    #         assert(! current_block_stack.empty());
    #   PBlock*tmp = current_block_stack.top();
    #   current_block_stack.pop();
    #   tmp->set_join_type($7);
    #   if ($6) tmp->set_statement(*$6);
    #   delete $6;
    #   if ($8) {
    #         if (strcmp($3,$8) != 0) {
    #               yyerror(@8, "error: End label doesn't match fork name");
    #         }
    #         if (! gn_system_verilog()) {
    #               yyerror(@8, "error: Fork end labels require "
    #                           "SystemVerilog.");
    #         }
    #         delete[]$8;
    #   }
    #   delete[]$3;
    #   $$ = tmp;
    #       }
()
def p_statement_item_11(p):
    '''statement_item : K_disable hierarchy_identifier ';' '''
    print(p)
    # { PDisable*tmp = new PDisable(*$2);
    #             FILE_NAME(tmp, @1);
    #             delete $2;
    #             $$ = tmp;
    #           }
()
def p_statement_item_12(p):
    '''statement_item : K_disable K_fork ';' '''
    print(p)
    # { pform_name_t tmp_name;
    #             PDisable*tmp = new PDisable(tmp_name);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_13(p):
    '''statement_item : K_TRIGGER hierarchy_identifier ';' '''
    print(p)
    # { PTrigger*tmp = new PTrigger(*$2);
    #             FILE_NAME(tmp, @1);
    #             delete $2;
    #             $$ = tmp;
    #           }
()
def p_statement_item_14(p):
    '''statement_item : procedural_assertion_statement '''
    print(p)
    # { $$ = $1; }
()
def p_statement_item_15(p):
    '''statement_item : loop_statement '''
    print(p)
    # { $$ = $1; }
()
def p_statement_item_16(p):
    '''statement_item : jump_statement '''
    print(p)
    # { $$ = $1; }
()
def p_statement_item_17(p):
    '''statement_item : K_case '(' expression ')' case_items K_endcase '''
    print(p)
    # { PCase*tmp = new PCase(NetCase::EQ, $3, $5);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_18(p):
    '''statement_item : K_casex '(' expression ')' case_items K_endcase '''
    print(p)
    # { PCase*tmp = new PCase(NetCase::EQX, $3, $5);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_19(p):
    '''statement_item : K_casez '(' expression ')' case_items K_endcase '''
    print(p)
    # { PCase*tmp = new PCase(NetCase::EQZ, $3, $5);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_20(p):
    '''statement_item : K_case '(' expression ')' error K_endcase '''
    print(p)
    # { yyerrok; }
()
def p_statement_item_21(p):
    '''statement_item : K_casex '(' expression ')' error K_endcase '''
    print(p)
    # { yyerrok; }
()
def p_statement_item_22(p):
    '''statement_item : K_casez '(' expression ')' error K_endcase '''
    print(p)
    # { yyerrok; }
()
def p_statement_item_23(p):
    '''statement_item : K_if '(' expression ')' statement_or_null %prec less_than_K_else '''
    print(p)
    # { PCondit*tmp = new PCondit($3, $5, 0);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_24(p):
    '''statement_item : K_if '(' expression ')' statement_or_null K_else statement_or_null '''
    print(p)
    # { PCondit*tmp = new PCondit($3, $5, $7);
    #             FILE_NAME(tmp, @1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_25(p):
    '''statement_item : K_if '(' error ')' statement_or_null %prec less_than_K_else '''
    print(p)
    # { yyerror(@1, "error: Malformed conditional expression.");
    #             $$ = $5;
    #           }
()
def p_statement_item_26(p):
    '''statement_item : K_if '(' error ')' statement_or_null K_else statement_or_null '''
    print(p)
    # { yyerror(@1, "error: Malformed conditional expression.");
    #             $$ = $5;
    #           }
()
def p_statement_item_27(p):
    '''statement_item : compressed_statement ';' '''
    print(p)
    # { $$ = $1; }
()
def p_statement_item_28(p):
    '''statement_item : inc_or_dec_expression ';' '''
    print(p)
    # { $$ = pform_compressed_assign_from_inc_dec(@1, $1); }
()
def p_statement_item_29(p):
    '''statement_item : delay1 statement_or_null '''
    print(p)
    # { PExpr*del = $1->front();
    #   assert($1->size() == 1);
    #   delete $1;
    #   PDelayStatement*tmp = new PDelayStatement(del, $2);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_30(p):
    '''statement_item : event_control statement_or_null '''
    print(p)
    # { PEventStatement*tmp = $1;
    #   if (tmp == 0) {
    #         yyerror(@1, "error: Invalid event control.");
    #         $$ = 0;
    #   } else {
    #         tmp->set_statement($2);
    #         $$ = tmp;
    #   }
    #       }
()
def p_statement_item_31(p):
    '''statement_item : '@' '*' statement_or_null '''
    print(p)
    # { PEventStatement*tmp = new PEventStatement;
    #   FILE_NAME(tmp, @1);
    #   tmp->set_statement($3);
    #   $$ = tmp;
    #       }
()
def p_statement_item_32(p):
    '''statement_item : '@' '(' '*' ')' statement_or_null '''
    print(p)
    # { PEventStatement*tmp = new PEventStatement;
    #   FILE_NAME(tmp, @1);
    #   tmp->set_statement($5);
    #   $$ = tmp;
    #       }
()
def p_statement_item_33(p):
    '''statement_item : lpvalue '=' expression ';' '''
    print(p)
    # { PAssign*tmp = new PAssign($1,$3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_34(p):
    '''statement_item : error '=' expression ';' '''
    print(p)
    # { yyerror(@2, "Syntax in assignment statement l-value.");
    #   yyerrok;
    #   $$ = new PNoop;
    #       }
()
def p_statement_item_35(p):
    '''statement_item : lpvalue K_LE expression ';' '''
    print(p)
    # { PAssignNB*tmp = new PAssignNB($1,$3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_36(p):
    '''statement_item : error K_LE expression ';' '''
    print(p)
    # { yyerror(@2, "Syntax in assignment statement l-value.");
    #   yyerrok;
    #   $$ = new PNoop;
    #       }
()
def p_statement_item_37(p):
    '''statement_item : lpvalue '=' delay1 expression ';' '''
    print(p)
    # { PExpr*del = $3->front(); $3->pop_front();
    #   assert($3->empty());
    #   PAssign*tmp = new PAssign($1,del,$4);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_38(p):
    '''statement_item : lpvalue K_LE delay1 expression ';' '''
    print(p)
    # { PExpr*del = $3->front(); $3->pop_front();
    #   assert($3->empty());
    #   PAssignNB*tmp = new PAssignNB($1,del,$4);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_39(p):
    '''statement_item : lpvalue '=' event_control expression ';' '''
    print(p)
    # { PAssign*tmp = new PAssign($1,0,$3,$4);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_40(p):
    '''statement_item : lpvalue '=' K_repeat '(' expression ')' event_control expression ';' '''
    print(p)
    # { PAssign*tmp = new PAssign($1,$5,$7,$8);
    #   FILE_NAME(tmp,@1);
    #   tmp->set_lineno(@1.first_line);
    #   $$ = tmp;
    #       }
()
def p_statement_item_41(p):
    '''statement_item : lpvalue K_LE event_control expression ';' '''
    print(p)
    # { PAssignNB*tmp = new PAssignNB($1,0,$3,$4);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_42(p):
    '''statement_item : lpvalue K_LE K_repeat '(' expression ')' event_control expression ';' '''
    print(p)
    # { PAssignNB*tmp = new PAssignNB($1,$5,$7,$8);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_43(p):
    '''statement_item : lpvalue '=' dynamic_array_new ';' '''
    print(p)
    # { PAssign*tmp = new PAssign($1,$3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_44(p):
    '''statement_item : lpvalue '=' class_new ';' '''
    print(p)
    # { PAssign*tmp = new PAssign($1,$3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_item_45(p):
    '''statement_item : K_wait '(' expression ')' statement_or_null '''
    print(p)
    # { PEventStatement*tmp;
    #             PEEvent*etmp = new PEEvent(PEEvent::POSITIVE, $3);
    #             tmp = new PEventStatement(etmp);
    #             FILE_NAME(tmp,@1);
    #             tmp->set_statement($5);
    #             $$ = tmp;
    #           }
()
def p_statement_item_46(p):
    '''statement_item : K_wait K_fork ';' '''
    print(p)
    # { PEventStatement*tmp = new PEventStatement((PEEvent*)0);
    #             FILE_NAME(tmp,@1);
    #             $$ = tmp;
    #           }
()
def p_statement_item_47(p):
    '''statement_item : SYSTEM_IDENTIFIER '(' expression_list_with_nuls ')' ';' '''
    print(p)
    # { PCallTask*tmp = new PCallTask(lex_strings.make($1), *$3);
    #             FILE_NAME(tmp,@1);
    #             delete[]$1;
    #             delete $3;
    #             $$ = tmp;
    #           }
()
def p_statement_item_48(p):
    '''statement_item : SYSTEM_IDENTIFIER ';' '''
    print(p)
    # { list<PExpr*>pt;
    #             PCallTask*tmp = new PCallTask(lex_strings.make($1), pt);
    #             FILE_NAME(tmp,@1);
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_statement_item_49(p):
    '''statement_item : hierarchy_identifier '(' expression_list_with_nuls ')' ';' '''
    print(p)
    # { PCallTask*tmp = pform_make_call_task(@1, *$1, *$3);
    #   delete $1;
    #   delete $3;
    #   $$ = tmp;
    #       }
()
def p_statement_item_50(p):
    '''statement_item : hierarchy_identifier K_with '{' constraint_block_item_list_opt '}' ';' '''
    print(p)
    # { /* ....randomize with { <constraints> } */
    #   if ($1 && peek_tail_name(*$1) == "randomize") {
    #         if (!gn_system_verilog())
    #               yyerror(@2, "error: Randomize with constraint requires SystemVerilog.");
    #         else
    #               yyerror(@2, "sorry: Randomize with constraint not supported.");
    #   } else {
    #         yyerror(@2, "error: Constraint block can only be applied to randomize method.");
    #   }
    #   list<PExpr*>pt;
    #   PCallTask*tmp = new PCallTask(*$1, pt);
    #   FILE_NAME(tmp, @1);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_statement_item_51(p):
    '''statement_item : implicit_class_handle '.' hierarchy_identifier '(' expression_list_with_nuls ')' ';' '''
    print(p)
    # { pform_name_t*t_name = $1;
    #   while (! $3->empty()) {
    #         t_name->push_back($3->front());
    #         $3->pop_front();
    #   }
    #   PCallTask*tmp = new PCallTask(*t_name, *$5);
    #   FILE_NAME(tmp, @1);
    #   delete $1;
    #   delete $3;
    #   delete $5;
    #   $$ = tmp;
    #       }
()
def p_statement_item_52(p):
    '''statement_item : hierarchy_identifier ';' '''
    print(p)
    # { list<PExpr*>pt;
    #   PCallTask*tmp = pform_make_call_task(@1, *$1, pt);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_statement_item_53(p):
    '''statement_item : implicit_class_handle '.' K_new '(' expression_list_with_nuls ')' ';' '''
    print(p)
    # { PChainConstructor*tmp = new PChainConstructor(*$5);
    #   FILE_NAME(tmp, @3);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_statement_item_54(p):
    '''statement_item : hierarchy_identifier '(' error ')' ';' '''
    print(p)
    # { yyerror(@3, "error: Syntax error in task arguments.");
    #   list<PExpr*>pt;
    #   PCallTask*tmp = pform_make_call_task(@1, *$1, pt);
    #   delete $1;
    #   $$ = tmp;
    #       }
()
def p_statement_item_55(p):
    '''statement_item : error ';' '''
    print(p)
    # { yyerror(@2, "error: malformed statement");
    #   yyerrok;
    #   $$ = new PNoop;
    #       }
()
def p__embed0_statement_item(p):
    '''_embed0_statement_item : '''
    # { PBlock*tmp = pform_push_block_scope(0, PBlock::BL_SEQ);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    #       }
()
def p__embed1_statement_item(p):
    '''_embed1_statement_item : '''
    # { if ($3) {
    #       if (! gn_system_verilog()) {
    #             yyerror("error: Variable declaration in unnamed block "
    #                     "requires SystemVerilog.");
    #       }
    #   } else {
    #       /* If there are no declarations in the scope then just delete it. */
    #       pform_pop_scope();
    #       assert(! current_block_stack.empty());
    #       PBlock*tmp = current_block_stack.top();
    #       current_block_stack.pop();
    #       delete tmp;
    #   }
    #       }
()
def p__embed2_statement_item(p):
    '''_embed2_statement_item : '''
    # { PBlock*tmp = pform_push_block_scope($3, PBlock::BL_SEQ);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    #       }
()
def p__embed3_statement_item(p):
    '''_embed3_statement_item : '''
    # { PBlock*tmp = pform_push_block_scope(0, PBlock::BL_PAR);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    #       }
()
def p__embed4_statement_item(p):
    '''_embed4_statement_item : '''
    # { if ($3) {
    #       if (! gn_system_verilog()) {
    #             yyerror("error: Variable declaration in unnamed block "
    #                     "requires SystemVerilog.");
    #       }
    #   } else {
    #       /* If there are no declarations in the scope then just delete it. */
    #       pform_pop_scope();
    #       assert(! current_block_stack.empty());
    #       PBlock*tmp = current_block_stack.top();
    #       current_block_stack.pop();
    #       delete tmp;
    #   }
    #       }
()
def p__embed5_statement_item(p):
    '''_embed5_statement_item : '''
    # { PBlock*tmp = pform_push_block_scope($3, PBlock::BL_PAR);
    #   FILE_NAME(tmp, @1);
    #   current_block_stack.push(tmp);
    #       }
()
def p_compressed_statement_1(p):
    '''compressed_statement : lpvalue K_PLUS_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '+', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_2(p):
    '''compressed_statement : lpvalue K_MINUS_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '-', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_3(p):
    '''compressed_statement : lpvalue K_MUL_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '*', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_4(p):
    '''compressed_statement : lpvalue K_DIV_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '/', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_5(p):
    '''compressed_statement : lpvalue K_MOD_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '%', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_6(p):
    '''compressed_statement : lpvalue K_AND_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '&', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_7(p):
    '''compressed_statement : lpvalue K_OR_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '|', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_8(p):
    '''compressed_statement : lpvalue K_XOR_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, '^', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_9(p):
    '''compressed_statement : lpvalue K_LS_EQ expression '''
    print(p)
    # { PAssign  *tmp = new PAssign($1, 'l', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_10(p):
    '''compressed_statement : lpvalue K_RS_EQ expression '''
    print(p)
    # { PAssign*tmp = new PAssign($1, 'r', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_compressed_statement_11(p):
    '''compressed_statement : lpvalue K_RSS_EQ expression '''
    print(p)
    # { PAssign  *tmp = new PAssign($1, 'R', $3);
    #   FILE_NAME(tmp, @1);
    #   $$ = tmp;
    #       }
()
def p_statement_or_null_list_opt_1(p):
    '''statement_or_null_list_opt : statement_or_null_list '''
    print(p)
    # { $$ = $1; }
()
def p_statement_or_null_list_opt_2(p):
    '''statement_or_null_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_statement_or_null_list_1(p):
    '''statement_or_null_list : statement_or_null_list statement_or_null '''
    print(p)
    # { vector<Statement*>*tmp = $1;
    #   if ($2) tmp->push_back($2);
    #   $$ = tmp;
    #       }
()
def p_statement_or_null_list_2(p):
    '''statement_or_null_list : statement_or_null '''
    print(p)
    # { vector<Statement*>*tmp = new vector<Statement*>(0);
    #   if ($1) tmp->push_back($1);
    #   $$ = tmp;
    #       }
()
def p_analog_statement_1(p):
    '''analog_statement : branch_probe_expression K_CONTRIBUTE expression ';' '''
    print(p)
    # { $$ = pform_contribution_statement(@2, $1, $3); }
()
def p_task_item_1(p):
    '''task_item : block_item_decl '''
    print(p)
    # { $$ = new vector<pform_tf_port_t>(0); }
()
def p_task_item_2(p):
    '''task_item : tf_port_declaration '''
    print(p)
    # { $$ = $1; }
()
def p_task_item_list_1(p):
    '''task_item_list : task_item_list task_item '''
    print(p)
    # { vector<pform_tf_port_t>*tmp = $1;
    #   size_t s1 = tmp->size();
    #   tmp->resize(s1 + $2->size());
    #   for (size_t idx = 0 ; idx < $2->size() ; idx += 1)
    #         tmp->at(s1 + idx) = $2->at(idx);
    #   delete $2;
    #   $$ = tmp;
    #       }
()
def p_task_item_list_2(p):
    '''task_item_list : task_item '''
    print(p)
    # { $$ = $1; }
()
def p_task_item_list_opt_1(p):
    '''task_item_list_opt : task_item_list '''
    print(p)
    # { $$ = $1; }
()
def p_task_item_list_opt_2(p):
    '''task_item_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_tf_port_list_opt_1(p):
    '''tf_port_list_opt : tf_port_list '''
    print(p)
    # { $$ = $1; }
()
def p_tf_port_list_opt_2(p):
    '''tf_port_list_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_udp_body_1(p):
    '''udp_body : K_table udp_entry_list K_endtable '''
    print(p)
    # { lex_end_table();
    #   $$ = $2;
    #       }
()
def p_udp_body_2(p):
    '''udp_body : K_table K_endtable '''
    print(p)
    # { lex_end_table();
    #   yyerror(@1, "error: Empty UDP table.");
    #   $$ = 0;
    #       }
()
def p_udp_body_3(p):
    '''udp_body : K_table error K_endtable '''
    print(p)
    # { lex_end_table();
    #   yyerror(@2, "Errors in UDP table");
    #   yyerrok;
    #   $$ = 0;
    #       }
()
def p_udp_entry_list_1(p):
    '''udp_entry_list : udp_comb_entry_list '''
    print(p)
()
def p_udp_entry_list_2(p):
    '''udp_entry_list : udp_sequ_entry_list '''
    print(p)
()
def p_udp_comb_entry_1(p):
    '''udp_comb_entry : udp_input_list ':' udp_output_sym ';' '''
    print(p)
    # { char*tmp = new char[strlen($1)+3];
    #             strcpy(tmp, $1);
    #             char*tp = tmp+strlen(tmp);
    #             *tp++ = ':';
    #             *tp++ = $3;
    #             *tp++ = 0;
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_udp_comb_entry_list_1(p):
    '''udp_comb_entry_list : udp_comb_entry '''
    print(p)
    # { list<string>*tmp = new list<string>;
    #             tmp->push_back($1);
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_udp_comb_entry_list_2(p):
    '''udp_comb_entry_list : udp_comb_entry_list udp_comb_entry '''
    print(p)
    # { list<string>*tmp = $1;
    #             tmp->push_back($2);
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_udp_sequ_entry_list_1(p):
    '''udp_sequ_entry_list : udp_sequ_entry '''
    print(p)
    # { list<string>*tmp = new list<string>;
    #             tmp->push_back($1);
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_udp_sequ_entry_list_2(p):
    '''udp_sequ_entry_list : udp_sequ_entry_list udp_sequ_entry '''
    print(p)
    # { list<string>*tmp = $1;
    #             tmp->push_back($2);
    #             delete[]$2;
    #             $$ = tmp;
    #           }
()
def p_udp_sequ_entry_1(p):
    '''udp_sequ_entry : udp_input_list ':' udp_input_sym ':' udp_output_sym ';' '''
    print(p)
    # { char*tmp = new char[strlen($1)+5];
    #             strcpy(tmp, $1);
    #             char*tp = tmp+strlen(tmp);
    #             *tp++ = ':';
    #             *tp++ = $3;
    #             *tp++ = ':';
    #             *tp++ = $5;
    #             *tp++ = 0;
    #             $$ = tmp;
    #           }
()
def p_udp_initial_1(p):
    '''udp_initial : K_initial IDENTIFIER '=' number ';' '''
    print(p)
    # { PExpr*etmp = new PENumber($4);
    #             PEIdent*itmp = new PEIdent(lex_strings.make($2));
    #             PAssign*atmp = new PAssign(itmp, etmp);
    #             FILE_NAME(atmp, @2);
    #             delete[]$2;
    #             $$ = atmp;
    #           }
()
def p_udp_init_opt_1(p):
    '''udp_init_opt : udp_initial '''
    print(p)
    # { $$ = $1; }
()
def p_udp_init_opt_2(p):
    '''udp_init_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_udp_input_list_1(p):
    '''udp_input_list : udp_input_sym '''
    print(p)
    # { char*tmp = new char[2];
    #             tmp[0] = $1;
    #             tmp[1] = 0;
    #             $$ = tmp;
    #           }
()
def p_udp_input_list_2(p):
    '''udp_input_list : udp_input_list udp_input_sym '''
    print(p)
    # { char*tmp = new char[strlen($1)+2];
    #             strcpy(tmp, $1);
    #             char*tp = tmp+strlen(tmp);
    #             *tp++ = $2;
    #             *tp++ = 0;
    #             delete[]$1;
    #             $$ = tmp;
    #           }
()
def p_udp_input_sym_1(p):
    '''udp_input_sym : '0' '''
    print(p)
    # { $$ = '0'; }
()
def p_udp_input_sym_2(p):
    '''udp_input_sym : '1' '''
    print(p)
    # { $$ = '1'; }
()
def p_udp_input_sym_3(p):
    '''udp_input_sym : 'x' '''
    print(p)
    # { $$ = 'x'; }
()
def p_udp_input_sym_4(p):
    '''udp_input_sym : '?' '''
    print(p)
    # { $$ = '?'; }
()
def p_udp_input_sym_5(p):
    '''udp_input_sym : 'b' '''
    print(p)
    # { $$ = 'b'; }
()
def p_udp_input_sym_6(p):
    '''udp_input_sym : '*' '''
    print(p)
    # { $$ = '*'; }
()
def p_udp_input_sym_7(p):
    '''udp_input_sym : '%' '''
    print(p)
    # { $$ = '%'; }
()
def p_udp_input_sym_8(p):
    '''udp_input_sym : 'f' '''
    print(p)
    # { $$ = 'f'; }
()
def p_udp_input_sym_9(p):
    '''udp_input_sym : 'F' '''
    print(p)
    # { $$ = 'F'; }
()
def p_udp_input_sym_10(p):
    '''udp_input_sym : 'l' '''
    print(p)
    # { $$ = 'l'; }
()
def p_udp_input_sym_11(p):
    '''udp_input_sym : 'h' '''
    print(p)
    # { $$ = 'h'; }
()
def p_udp_input_sym_12(p):
    '''udp_input_sym : 'B' '''
    print(p)
    # { $$ = 'B'; }
()
def p_udp_input_sym_13(p):
    '''udp_input_sym : 'r' '''
    print(p)
    # { $$ = 'r'; }
()
def p_udp_input_sym_14(p):
    '''udp_input_sym : 'R' '''
    print(p)
    # { $$ = 'R'; }
()
def p_udp_input_sym_15(p):
    '''udp_input_sym : 'M' '''
    print(p)
    # { $$ = 'M'; }
()
def p_udp_input_sym_16(p):
    '''udp_input_sym : 'n' '''
    print(p)
    # { $$ = 'n'; }
()
def p_udp_input_sym_17(p):
    '''udp_input_sym : 'N' '''
    print(p)
    # { $$ = 'N'; }
()
def p_udp_input_sym_18(p):
    '''udp_input_sym : 'p' '''
    print(p)
    # { $$ = 'p'; }
()
def p_udp_input_sym_19(p):
    '''udp_input_sym : 'P' '''
    print(p)
    # { $$ = 'P'; }
()
def p_udp_input_sym_20(p):
    '''udp_input_sym : 'Q' '''
    print(p)
    # { $$ = 'Q'; }
()
def p_udp_input_sym_21(p):
    '''udp_input_sym : 'q' '''
    print(p)
    # { $$ = 'q'; }
()
def p_udp_input_sym_22(p):
    '''udp_input_sym : '_' '''
    print(p)
    # { $$ = '_'; }
()
def p_udp_input_sym_23(p):
    '''udp_input_sym : '+' '''
    print(p)
    # { $$ = '+'; }
()
def p_udp_input_sym_24(p):
    '''udp_input_sym : DEC_NUMBER '''
    print(p)
    # { yyerror(@1, "internal error: Input digits parse as decimal number!"); $$ = '0'; }
()
def p_udp_output_sym_1(p):
    '''udp_output_sym : '0' '''
    print(p)
    # { $$ = '0'; }
()
def p_udp_output_sym_2(p):
    '''udp_output_sym : '1' '''
    print(p)
    # { $$ = '1'; }
()
def p_udp_output_sym_3(p):
    '''udp_output_sym : 'x' '''
    print(p)
    # { $$ = 'x'; }
()
def p_udp_output_sym_4(p):
    '''udp_output_sym : '-' '''
    print(p)
    # { $$ = '-'; }
()
def p_udp_output_sym_5(p):
    '''udp_output_sym : DEC_NUMBER '''
    print(p)
    # { yyerror(@1, "internal error: Output digits parse as decimal number!"); $$ = '0'; }
()
def p_udp_port_decl_1(p):
    '''udp_port_decl : K_input list_of_identifiers ';' '''
    print(p)
    # { $$ = pform_make_udp_input_ports($2); }
()
def p_udp_port_decl_2(p):
    '''udp_port_decl : K_output IDENTIFIER ';' '''
    print(p)
    # { perm_string pname = lex_strings.make($2);
    #   PWire*pp = new PWire(pname, NetNet::IMPLICIT, NetNet::POUTPUT, IVL_VT_LOGIC);
    #   vector<PWire*>*tmp = new vector<PWire*>(1);
    #   (*tmp)[0] = pp;
    #   $$ = tmp;
    #   delete[]$2;
    #       }
()
def p_udp_port_decl_3(p):
    '''udp_port_decl : K_reg IDENTIFIER ';' '''
    print(p)
    # { perm_string pname = lex_strings.make($2);
    #   PWire*pp = new PWire(pname, NetNet::REG, NetNet::PIMPLICIT, IVL_VT_LOGIC);
    #   vector<PWire*>*tmp = new vector<PWire*>(1);
    #   (*tmp)[0] = pp;
    #   $$ = tmp;
    #   delete[]$2;
    #       }
()
def p_udp_port_decl_4(p):
    '''udp_port_decl : K_reg K_output IDENTIFIER ';' '''
    print(p)
    # { perm_string pname = lex_strings.make($3);
    #   PWire*pp = new PWire(pname, NetNet::REG, NetNet::POUTPUT, IVL_VT_LOGIC);
    #   vector<PWire*>*tmp = new vector<PWire*>(1);
    #   (*tmp)[0] = pp;
    #   $$ = tmp;
    #   delete[]$3;
    #       }
()
def p_udp_port_decls_1(p):
    '''udp_port_decls : udp_port_decl '''
    print(p)
    # { $$ = $1; }
()
def p_udp_port_decls_2(p):
    '''udp_port_decls : udp_port_decls udp_port_decl '''
    print(p)
    # { vector<PWire*>*tmp = $1;
    #   size_t s1 = $1->size();
    #   tmp->resize(s1+$2->size());
    #   for (size_t idx = 0 ; idx < $2->size() ; idx += 1)
    #         tmp->at(s1+idx) = $2->at(idx);
    #   $$ = tmp;
    #   delete $2;
    #       }
()
def p_udp_port_list_1(p):
    '''udp_port_list : IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #   tmp->push_back(lex_strings.make($1));
    #   delete[]$1;
    #   $$ = tmp;
    #       }
()
def p_udp_port_list_2(p):
    '''udp_port_list : udp_port_list ',' IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #   tmp->push_back(lex_strings.make($3));
    #   delete[]$3;
    #   $$ = tmp;
    #       }
()
def p_udp_reg_opt_1(p):
    '''udp_reg_opt : K_reg '''
    print(p)
    # { $$ = true; }
()
def p_udp_reg_opt_2(p):
    '''udp_reg_opt :  '''
    print(p)
    # { $$ = false; }
()
def p_udp_initial_expr_opt_1(p):
    '''udp_initial_expr_opt : '=' expression '''
    print(p)
    # { $$ = $2; }
()
def p_udp_initial_expr_opt_2(p):
    '''udp_initial_expr_opt :  '''
    print(p)
    # { $$ = 0; }
()
def p_udp_input_declaration_list_1(p):
    '''udp_input_declaration_list : K_input IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = new list<perm_string>;
    #             tmp->push_back(lex_strings.make($2));
    #             $$ = tmp;
    #             delete[]$2;
    #           }
()
def p_udp_input_declaration_list_2(p):
    '''udp_input_declaration_list : udp_input_declaration_list ',' K_input IDENTIFIER '''
    print(p)
    # { list<perm_string>*tmp = $1;
    #             tmp->push_back(lex_strings.make($4));
    #             $$ = tmp;
    #             delete[]$4;
    #           }
()
def p_udp_primitive_1(p):
    '''udp_primitive : K_primitive IDENTIFIER '(' udp_port_list ')' ';' udp_port_decls udp_init_opt udp_body K_endprimitive endlabel_opt '''
    print(p)
    # { perm_string tmp2 = lex_strings.make($2);
    #             pform_make_udp(tmp2, $4, $7, $9, $8,
    #                            @2.text, @2.first_line);
    #             if ($11) {
    #                   if (strcmp($2,$11) != 0) {
    #                         yyerror(@11, "error: End label doesn't match "
    #                                      "primitive name");
    #                   }
    #                   if (! gn_system_verilog()) {
    #                         yyerror(@11, "error: Primitive end labels "
    #                                      "require SystemVerilog.");
    #                   }
    #                   delete[]$11;
    #             }
    #             delete[]$2;
    #           }
()
def p_udp_primitive_2(p):
    '''udp_primitive : K_primitive IDENTIFIER '(' K_output udp_reg_opt IDENTIFIER udp_initial_expr_opt ',' udp_input_declaration_list ')' ';' udp_body K_endprimitive endlabel_opt '''
    print(p)
    # { perm_string tmp2 = lex_strings.make($2);
    #             perm_string tmp6 = lex_strings.make($6);
    #             pform_make_udp(tmp2, $5, tmp6, $7, $9, $12,
    #                            @2.text, @2.first_line);
    #             if ($14) {
    #                   if (strcmp($2,$14) != 0) {
    #                         yyerror(@14, "error: End label doesn't match "
    #                                      "primitive name");
    #                   }
    #                   if (! gn_system_verilog()) {
    #                         yyerror(@14, "error: Primitive end labels "
    #                                      "require SystemVerilog.");
    #                   }
    #                   delete[]$14;
    #             }
    #             delete[]$2;
    #             delete[]$6;
    #           }
()
def p_K_packed_opt_1(p):
    '''K_packed_opt : K_packed '''
    print(p)
    # { $$ = true; }
()
def p_K_packed_opt_2(p):
    '''K_packed_opt :  '''
    print(p)
    # { $$ = false; }
()
def p_K_reg_opt_1(p):
    '''K_reg_opt : K_reg '''
    print(p)
    # { $$ = true; }
()
def p_K_reg_opt_2(p):
    '''K_reg_opt :  '''
    print(p)
    # { $$ = false; }
()
def p_K_static_opt_1(p):
    '''K_static_opt : K_static '''
    print(p)
    # { $$ = true; }
()
def p_K_static_opt_2(p):
    '''K_static_opt :  '''
    print(p)
    # { $$ = false; }
()

def p_K_virtual_opt_1(p):
    '''K_virtual_opt : K_virtual '''
    print(p)
    # { $$ = true; }
()
def p_K_virtual_opt_2(p):
    '''K_virtual_opt :  '''
    print(p)
    # { $$ = false; }
()

def p_error(p):
    print ("error", p)
    exit(0)

yacc.yacc(debug=0)