author | mario |
Mon, 01 Jun 2009 21:08:44 +0200 | |
changeset 181 | 38d6eb056260 |
parent 178 | 1622dc05c6ca |
permissions | -rw-r--r-- |
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/* |
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* (c) 2009 Mario de Sousa |
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* |
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* Offered to the public under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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* Public License for more details. |
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* |
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* This code is made available on the understanding that it will not be |
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* used in safety-critical situations without a full and competent review. |
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*/ |
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/* |
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* An IEC 61131-3 IL and ST compiler. |
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* |
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* Based on the |
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* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10) |
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* |
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*/ |
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/* |
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* This is the main stage 3a file. |
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* |
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* In stage 3a some helpful symbol tables are instanciated and populated. |
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* These symbol tables wll then be used by stage3b and atage4 code generators. |
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*/ |
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// #include <stdio.h> /* required for NULL */ |
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#include <string> |
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#include <iostream> |
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#include <sstream> |
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#include <typeinfo> |
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#include <list> |
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#include <strings.h> |
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#include "../util/symtable.hh" |
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#include "../util/dsymtable.hh" |
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#include "../absyntax/visitor.hh" |
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//#define DEBUG |
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#ifdef DEBUG |
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#define TRACE(classname) printf("\n____%s____\n",classname); |
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#else |
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#define TRACE(classname) |
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#endif |
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#define ERROR error_exit(__FILE__,__LINE__) |
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/* function defined in main.cc */ |
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extern void error_exit(const char *file_name, int line_no); |
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/* A symbol table with all globally declared functions... */ |
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function_declaration_c null_symbol1(NULL,NULL,NULL,NULL); |
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dsymtable_c<function_declaration_c *, &null_symbol1> function_symtable; |
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/* A symbol table with all globally declared functions block types... */ |
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function_block_declaration_c null_symbol2(NULL,NULL,NULL); |
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symtable_c<function_block_declaration_c *, &null_symbol2> function_block_type_symtable; |
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/* A symbol table with all globally declared program types... */ |
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program_declaration_c null_symbol3(NULL,NULL,NULL); |
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symtable_c<program_declaration_c *, &null_symbol3> program_type_symtable; |
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/* A symbol table with all user declared type definitions... */ |
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/* Note that function block types and program types have their |
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* own symbol tables, so do not get placed in this symbol table! |
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*/ |
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symbol_c null_symbol4; |
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symtable_c<symbol_c *, &null_symbol4> type_symtable; |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/* |
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#include "spec_init_separator.cc" |
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#include "function_param_iterator.cc" |
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#include "function_call_iterator.cc" |
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#include "function_call_param_iterator.cc" |
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#include "type_initial_value.cc" |
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#include "search_fb_instance_decl.cc" |
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#include "search_fb_typedecl.cc" |
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#include "search_base_type.cc" |
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#include "search_var_instance_decl.cc" |
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#include "decompose_var_instance_name.cc" |
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#include "search_varfb_instance_type.cc" |
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#include "search_constant_type.cc" |
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#include "search_expression_type.cc" |
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#include "generate_c_base.cc" |
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#include "generate_c_typedecl.cc" |
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#include "generate_c_sfcdecl.cc" |
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#include "generate_c_vardecl.cc" |
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#include "generate_c_configbody.cc" |
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#include "generate_location_list.cc" |
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#include "generate_var_list.cc" |
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*/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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/***********************************************************************/ |
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class populate_symtables_c: public iterator_visitor_c { |
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public: |
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populate_symtables_c(void) {}; |
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virtual ~populate_symtables_c(void) {} |
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public: |
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/*************************/ |
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/* B.1 - Common elements */ |
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/*************************/ |
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/*******************************************/ |
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/* B 1.1 - Letters, digits and identifiers */ |
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/*******************************************/ |
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/*********************/ |
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/* B 1.2 - Constants */ |
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/*********************/ |
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/******************************/ |
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/* B 1.2.1 - Numeric Literals */ |
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/******************************/ |
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/*******************************/ |
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146 |
/* B.1.2.2 Character Strings */ |
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147 |
/*******************************/ |
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|
148 |
/***************************/ |
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|
149 |
/* B 1.2.3 - Time Literals */ |
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150 |
/***************************/ |
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|
151 |
/************************/ |
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|
152 |
/* B 1.2.3.1 - Duration */ |
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153 |
/************************/ |
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|
154 |
/************************************/ |
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155 |
/* B 1.2.3.2 - Time of day and Date */ |
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156 |
/************************************/ |
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|
157 |
/**********************/ |
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|
158 |
/* B.1.3 - Data types */ |
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|
159 |
/**********************/ |
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|
160 |
/***********************************/ |
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|
161 |
/* B 1.3.1 - Elementary Data Types */ |
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|
162 |
/***********************************/ |
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|
163 |
/********************************/ |
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|
164 |
/* B.1.3.2 - Generic data types */ |
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|
165 |
/********************************/ |
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|
166 |
/********************************/ |
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|
167 |
/* B 1.3.3 - Derived data types */ |
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|
168 |
/********************************/ |
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|
169 |
|
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170 |
/* subrange_type_name ':' subrange_spec_init */ |
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171 |
void *visit(subrange_type_declaration_c *symbol) { |
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|
172 |
TRACE("subrange_type_declaration_c"); |
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173 |
type_symtable.insert(symbol->subrange_type_name, symbol->subrange_spec_init); |
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|
174 |
return NULL; |
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|
175 |
} |
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|
176 |
|
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|
177 |
|
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|
178 |
/* enumerated_type_name ':' enumerated_spec_init */ |
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|
179 |
void *visit(enumerated_type_declaration_c *symbol) { |
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|
180 |
TRACE("enumerated_type_declaration_c"); |
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|
181 |
type_symtable.insert(symbol->enumerated_type_name, symbol->enumerated_spec_init); |
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|
182 |
return NULL; |
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|
183 |
} |
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|
184 |
|
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|
185 |
|
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|
186 |
/* identifier ':' array_spec_init */ |
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|
187 |
void *visit(array_type_declaration_c *symbol) { |
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|
188 |
TRACE("array_type_declaration_c"); |
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|
189 |
type_symtable.insert(symbol->identifier, symbol->array_spec_init); |
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|
190 |
return NULL; |
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|
191 |
} |
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|
192 |
|
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|
193 |
|
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|
194 |
/* simple_type_name ':' simple_spec_init */ |
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|
195 |
void *visit(simple_type_declaration_c *symbol) { |
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|
196 |
TRACE("simple_type_declaration_c"); |
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|
197 |
type_symtable.insert(symbol->simple_type_name, symbol->simple_spec_init); |
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|
198 |
return NULL; |
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|
199 |
} |
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|
200 |
|
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|
201 |
|
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|
202 |
/* structure_type_name ':' structure_specification */ |
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|
203 |
void *visit(structure_type_declaration_c *symbol) { |
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|
204 |
TRACE("structure_type_declaration_c"); |
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|
205 |
type_symtable.insert(symbol->structure_type_name, symbol->structure_specification); |
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|
206 |
return NULL; |
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|
207 |
} |
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|
208 |
|
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|
209 |
|
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|
210 |
|
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|
211 |
/*********************/ |
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|
212 |
/* B 1.4 - Variables */ |
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|
213 |
/*********************/ |
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|
214 |
/********************************************/ |
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|
215 |
/* B.1.4.1 Directly Represented Variables */ |
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|
216 |
/********************************************/ |
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|
217 |
/*************************************/ |
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|
218 |
/* B.1.4.2 Multi-element Variables */ |
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|
219 |
/*************************************/ |
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|
220 |
/******************************************/ |
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|
221 |
/* B 1.4.3 - Declaration & Initialisation */ |
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|
222 |
/******************************************/ |
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|
223 |
/**************************************/ |
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|
224 |
/* B.1.5 - Program organization units */ |
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|
225 |
/**************************************/ |
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|
226 |
/***********************/ |
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|
227 |
/* B 1.5.1 - Functions */ |
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|
228 |
/***********************/ |
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|
229 |
public: |
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|
230 |
/* FUNCTION derived_function_name ':' elementary_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */ |
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231 |
/* | FUNCTION derived_function_name ':' derived_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */ |
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|
232 |
void *visit(function_declaration_c *symbol) { |
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|
233 |
TRACE("function_declaration_c"); |
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|
234 |
function_symtable.insert(symbol->derived_function_name, symbol); |
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|
235 |
|
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|
236 |
/* symbol->derived_function_name->accept(*this); */ /* Function name */ |
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|
237 |
/* symbol->type_name->accept(*this); */ /* return data type */ |
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|
238 |
/* symbol->var_declarations_list->accept(*this); */ /* Function parameters and variables */ |
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|
239 |
/* symbol->function_body->accept(*this); */ /* Function body */ |
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|
240 |
return NULL; |
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changeset
|
241 |
} |
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|
242 |
|
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changeset
|
243 |
|
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|
244 |
/*****************************/ |
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|
245 |
/* B 1.5.2 - Function Blocks */ |
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|
246 |
/*****************************/ |
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|
247 |
public: |
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|
248 |
/* FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */ |
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|
249 |
//SYM_REF4(function_block_declaration_c, fblock_name, var_declarations, fblock_body, unused) |
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|
250 |
void *visit(function_block_declaration_c *symbol) { |
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|
251 |
TRACE("function_block_declaration_c"); |
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|
252 |
function_block_type_symtable.insert(symbol->fblock_name, symbol); |
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|
253 |
/* |
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|
254 |
symbol->fblock_name->accept(*this); |
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|
255 |
symbol->var_declarations->accept(*this); |
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|
256 |
symbol->fblock_body->accept(*this); |
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|
257 |
*/ |
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|
258 |
return NULL; |
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|
259 |
} |
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|
260 |
|
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|
261 |
|
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|
262 |
/**********************/ |
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|
263 |
/* B 1.5.3 - Programs */ |
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|
264 |
/**********************/ |
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|
265 |
public: |
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|
266 |
/* PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */ |
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|
267 |
//SYM_REF4(program_declaration_c, program_type_name, var_declarations, function_block_body, unused) |
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|
268 |
void *visit(program_declaration_c *symbol) { |
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parents:
diff
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|
269 |
TRACE("program_declaration_c"); |
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|
270 |
program_type_symtable.insert(symbol->program_type_name, symbol); |
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|
271 |
/* |
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|
272 |
symbol->program_type_name->accept(*this); |
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|
273 |
symbol->var_declarations->accept(*this); |
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parents:
diff
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|
274 |
symbol->function_block_body->accept(*this); |
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parents:
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changeset
|
275 |
*/ |
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|
276 |
return NULL; |
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diff
changeset
|
277 |
} |
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|
278 |
|
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parents:
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|
279 |
}; /* populate_symtables_c */ |
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|
280 |
|
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|
281 |
|
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parents:
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|
282 |
|
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parents:
diff
changeset
|
283 |
|
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parents:
diff
changeset
|
284 |
|
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parents:
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|
285 |
void search_utils_init(symbol_c *tree_root) { |
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parents:
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|
286 |
populate_symtables_c populate_symbols; |
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parents:
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changeset
|
287 |
|
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Starting move of search utils to their own top level directory.
mario
parents:
diff
changeset
|
288 |
tree_root->accept(populate_symbols); |
1622dc05c6ca
Starting move of search utils to their own top level directory.
mario
parents:
diff
changeset
|
289 |
} |