author | Manuele Conti <manuele.conti@sirius-es.it> |
Tue, 18 Sep 2012 14:21:19 +0200 | |
changeset 657 | cac2973b6884 |
parent 656 | 45a796bce487 |
child 658 | fe5e1f01a49e |
permissions | -rw-r--r-- |
656
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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/* |
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Start declaration check class.
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* matiec - a compiler for the programming languages defined in IEC 61131-3 |
45a796bce487
Start declaration check class.
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* |
45a796bce487
Start declaration check class.
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* Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt) |
45a796bce487
Start declaration check class.
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* Copyright (C) 2012 Manuele Conti (conti.ma@alice.it) |
45a796bce487
Start declaration check class.
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parents:
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* |
45a796bce487
Start declaration check class.
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parents:
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* This program is free software: you can redistribute it and/or modify |
45a796bce487
Start declaration check class.
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parents:
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* it under the terms of the GNU General Public License as published by |
45a796bce487
Start declaration check class.
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parents:
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9 |
* the Free Software Foundation, either version 3 of the License, or |
45a796bce487
Start declaration check class.
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parents:
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* (at your option) any later version. |
45a796bce487
Start declaration check class.
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parents:
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* |
45a796bce487
Start declaration check class.
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* This program is distributed in the hope that it will be useful, |
45a796bce487
Start declaration check class.
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parents:
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
45a796bce487
Start declaration check class.
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
45a796bce487
Start declaration check class.
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parents:
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* GNU General Public License for more details. |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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* |
45a796bce487
Start declaration check class.
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* You should have received a copy of the GNU General Public License |
45a796bce487
Start declaration check class.
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
45a796bce487
Start declaration check class.
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* |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
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* |
45a796bce487
Start declaration check class.
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* This code is made available on the understanding that it will not be |
45a796bce487
Start declaration check class.
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* used in safety-critical situations without a full and competent review. |
45a796bce487
Start declaration check class.
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*/ |
45a796bce487
Start declaration check class.
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|
45a796bce487
Start declaration check class.
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/* |
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Start declaration check class.
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* An IEC 61131-3 compiler. |
45a796bce487
Start declaration check class.
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* |
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Start declaration check class.
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* Based on the |
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Start declaration check class.
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* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10) |
45a796bce487
Start declaration check class.
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* |
45a796bce487
Start declaration check class.
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*/ |
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Start declaration check class.
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|
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Start declaration check class.
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|
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Start declaration check class.
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/* Declaration sequence is a source code part needed to declare variables. |
45a796bce487
Start declaration check class.
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* There are some checks we need to do before start with other analysis: |
45a796bce487
Start declaration check class.
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* |
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Start declaration check class.
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* - Check external option redefinition. |
45a796bce487
Start declaration check class.
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* - Check external data type redefinition. |
45a796bce487
Start declaration check class.
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* - Check initial values consistently with the data types of the variables/data types being declared. |
45a796bce487
Start declaration check class.
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* - Check whether a function block uses a CONSTANT qualifier as described in 2.5.2.1. |
45a796bce487
Start declaration check class.
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* |
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Start declaration check class.
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*/ |
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Start declaration check class.
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Start declaration check class.
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Start declaration check class.
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#include "declaration_check.hh" |
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Start declaration check class.
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#include "datatype_functions.hh" |
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Start declaration check class.
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|
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Start declaration check class.
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#define FIRST_(symbol1, symbol2) (((symbol1)->first_order < (symbol2)->first_order) ? (symbol1) : (symbol2)) |
45a796bce487
Start declaration check class.
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#define LAST_(symbol1, symbol2) (((symbol1)->last_order > (symbol2)->last_order) ? (symbol1) : (symbol2)) |
45a796bce487
Start declaration check class.
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|
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Start declaration check class.
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#define STAGE3_ERROR(error_level, symbol1, symbol2, ...) { \ |
45a796bce487
Start declaration check class.
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if (current_display_error_level >= error_level) { \ |
45a796bce487
Start declaration check class.
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fprintf(stderr, "%s:%d-%d..%d-%d: error: ", \ |
45a796bce487
Start declaration check class.
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FIRST_(symbol1,symbol2)->first_file, FIRST_(symbol1,symbol2)->first_line, FIRST_(symbol1,symbol2)->first_column,\ |
45a796bce487
Start declaration check class.
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LAST_(symbol1,symbol2) ->last_line, LAST_(symbol1,symbol2) ->last_column);\ |
45a796bce487
Start declaration check class.
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parents:
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fprintf(stderr, __VA_ARGS__); \ |
45a796bce487
Start declaration check class.
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fprintf(stderr, "\n"); \ |
45a796bce487
Start declaration check class.
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error_count++; \ |
45a796bce487
Start declaration check class.
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} \ |
45a796bce487
Start declaration check class.
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} |
45a796bce487
Start declaration check class.
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Start declaration check class.
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Start declaration check class.
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#define STAGE3_WARNING(symbol1, symbol2, ...) { \ |
45a796bce487
Start declaration check class.
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fprintf(stderr, "%s:%d-%d..%d-%d: warning: ", \ |
45a796bce487
Start declaration check class.
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parents:
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FIRST_(symbol1,symbol2)->first_file, FIRST_(symbol1,symbol2)->first_line, FIRST_(symbol1,symbol2)->first_column,\ |
45a796bce487
Start declaration check class.
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parents:
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LAST_(symbol1,symbol2) ->last_line, LAST_(symbol1,symbol2) ->last_column);\ |
45a796bce487
Start declaration check class.
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67 |
fprintf(stderr, __VA_ARGS__); \ |
45a796bce487
Start declaration check class.
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fprintf(stderr, "\n"); \ |
45a796bce487
Start declaration check class.
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warning_found = true; \ |
45a796bce487
Start declaration check class.
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} |
45a796bce487
Start declaration check class.
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Start declaration check class.
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45a796bce487
Start declaration check class.
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declaration_check_c::declaration_check_c(symbol_c *ignore) { |
45a796bce487
Start declaration check class.
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error_count = 0; |
45a796bce487
Start declaration check class.
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} |
45a796bce487
Start declaration check class.
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|
45a796bce487
Start declaration check class.
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declaration_check_c::~declaration_check_c(void) { |
45a796bce487
Start declaration check class.
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|
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Start declaration check class.
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} |
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Start declaration check class.
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Start declaration check class.
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int declaration_check_c::get_error_count() { |
45a796bce487
Start declaration check class.
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return error_count; |
45a796bce487
Start declaration check class.
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} |
45a796bce487
Start declaration check class.
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84 |
|
45a796bce487
Start declaration check class.
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void declaration_check_c::check_global_decl(symbol_c *p_decl) { |
45a796bce487
Start declaration check class.
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86 |
symbol_c *var_name; |
45a796bce487
Start declaration check class.
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87 |
search_base_type_c search_base_type; |
45a796bce487
Start declaration check class.
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|
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Start declaration check class.
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search_var_instance_decl_c search_var_instance_glo_decl(global_var_decls); |
45a796bce487
Start declaration check class.
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90 |
search_var_instance_decl_c search_var_instance_ext_decl(p_decl); |
45a796bce487
Start declaration check class.
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91 |
function_param_iterator_c fpi(p_decl); |
45a796bce487
Start declaration check class.
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92 |
while((var_name = fpi.next()) != NULL) { |
45a796bce487
Start declaration check class.
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93 |
if (fpi.param_direction() == function_param_iterator_c::direction_extref) { |
45a796bce487
Start declaration check class.
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94 |
/* found an external reference parameter. */ |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
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symbol_c *glo_decl = search_var_instance_glo_decl.get_decl(var_name); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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96 |
symbol_c *ext_decl = search_var_instance_ext_decl.get_decl(var_name); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
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97 |
if (search_var_instance_glo_decl.get_option(var_name) != search_var_instance_ext_decl.get_option(var_name)) |
45a796bce487
Start declaration check class.
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98 |
STAGE3_ERROR(0, glo_decl, glo_decl, "Declaration error an external redefinition option."); |
45a796bce487
Start declaration check class.
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99 |
|
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
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/* TODO: Check redefinition data type. |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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101 |
* We need a new class (like search_base_type class) to get type id by variable declaration. |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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102 |
* symbol_c *glo_type = ????; |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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103 |
* symbol_c *ext_type = fpi.param_type(); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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104 |
* if (! is_type_equal(glo_type, ext_type)) |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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105 |
* STAGE3_ERROR(0, glo_decl, glo_decl, "Declaration error an external redefinition data type."); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
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106 |
*/ |
45a796bce487
Start declaration check class.
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107 |
} |
45a796bce487
Start declaration check class.
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108 |
} |
45a796bce487
Start declaration check class.
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109 |
|
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Start declaration check class.
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110 |
} |
45a796bce487
Start declaration check class.
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111 |
|
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Start declaration check class.
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112 |
/******************************************/ |
45a796bce487
Start declaration check class.
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113 |
/* B 1.4.3 - Declaration & Initialisation */ |
45a796bce487
Start declaration check class.
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114 |
/******************************************/ |
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Start declaration check class.
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115 |
void *declaration_check_c::visit(global_var_declarations_c *symbol) { |
45a796bce487
Start declaration check class.
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116 |
global_var_decls = dynamic_cast<list_c *>(symbol->global_var_decl_list); |
45a796bce487
Start declaration check class.
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117 |
if (NULL == global_var_decls) |
45a796bce487
Start declaration check class.
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118 |
ERROR; |
45a796bce487
Start declaration check class.
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119 |
return NULL; |
45a796bce487
Start declaration check class.
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120 |
} |
45a796bce487
Start declaration check class.
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121 |
|
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Start declaration check class.
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122 |
/********************************/ |
45a796bce487
Start declaration check class.
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123 |
/* B 1.7 Configuration elements */ |
45a796bce487
Start declaration check class.
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124 |
/********************************/ |
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Start declaration check class.
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125 |
void *declaration_check_c::visit(program_configuration_c *symbol) { |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
126 |
symbol_c *p_decl = program_type_symtable.find_value(symbol->program_type_name); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
127 |
if (p_decl == program_type_symtable.end_value()) |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
128 |
p_decl = function_block_type_symtable.find_value(symbol->program_type_name); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
129 |
/* stage1_2 guarantees that we are sure to find a declaration in FB or Program symtable. */ |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
130 |
if (p_decl == function_block_type_symtable.end_value()) |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
131 |
ERROR; |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
132 |
check_global_decl(p_decl); |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
133 |
return NULL; |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
134 |
} |
45a796bce487
Start declaration check class.
Manuele Conti <conti.ma@alice.it>
parents:
diff
changeset
|
135 |