| author | Mario de Sousa <msousa@fe.up.pt> |
| Sun, 15 Apr 2012 19:56:33 +0100 | |
| changeset 509 | 35d391c38a30 |
| parent 508 | dc6906338042 |
| child 510 | 9317e04c1dde |
| permissions | -rw-r--r-- |
| 508 | 1 |
/* |
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* matiec - a compiler for the programming languages defined in IEC 61131-3 |
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* |
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* Copyright (C) 2009-2012 Mario de Sousa (msousa@fe.up.pt) |
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* Copyright (C) 2012 Manuele Conti (conti.ma@alice.it) |
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* |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (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, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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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 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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#include <vector> |
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#include "../absyntax_utils/absyntax_utils.hh" |
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#include "datatype_functions.hh" |
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/* |
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* In this class we implemented all lvalue check. |
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* With lvalue check we mean all semantic error about |
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* assignment with wrong access |
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*/ |
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class lvalue_check_c: public iterator_visitor_c {
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private: |
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509
35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
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search_varfb_instance_type_c *search_varfb_instance_type; |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
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search_var_instance_decl_c *search_var_instance_decl; |
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search_base_type_c search_base_type; |
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int error_found; |
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int current_display_error_level; |
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std::vector <symbol_c *> control_variables; |
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509
35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
53 |
|
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
54 |
void verify_is_lvalue (symbol_c *lvalue); |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
55 |
void check_assignment_to_controlvar(symbol_c *lvalue); |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
56 |
void check_assignment_to_output (symbol_c *lvalue); |
|
35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
57 |
void check_assignment_to_constant (symbol_c *lvalue); |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
58 |
void check_assignment_to_expression(symbol_c *lvalue); |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
|
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void check_formal_call (symbol_c *f_call, symbol_c *f_decl); |
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35d391c38a30
Fixing some bugs in lvalue checking (other bugs remain - to be fixed later)
Mario de Sousa <msousa@fe.up.pt>
parents:
508
diff
changeset
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void check_nonformal_call(symbol_c *f_call, symbol_c *f_decl); |
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public: |
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lvalue_check_c(symbol_c *ignore); |
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virtual ~lvalue_check_c(void); |
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int get_error_found(); |
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/**************************************/ |
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/* B 1.5 - Program organisation units */ |
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/**************************************/ |
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/***********************/ |
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/* B 1.5.1 - Functions */ |
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/***********************/ |
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void *visit(function_declaration_c *symbol); |
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/*****************************/ |
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/* B 1.5.2 - Function blocks */ |
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/*****************************/ |
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void *visit(function_block_declaration_c *symbol); |
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/**********************/ |
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/* B 1.5.3 - Programs */ |
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/**********************/ |
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void *visit(program_declaration_c *symbol); |
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/***************************************/ |
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/* B.3 - Language ST (Structured Text) */ |
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/***************************************/ |
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/***********************/ |
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/* B 3.1 - Expressions */ |
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/***********************/ |
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void *visit(function_invocation_c *symbol); |
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/*********************************/ |
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/* B 3.2.1 Assignment Statements */ |
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/*********************************/ |
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void *visit(assignment_statement_c *symbol); |
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/********************************/ |
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/* B 3.2.4 Iteration Statements */ |
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/********************************/ |
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void *visit(for_statement_c *symbol); |
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}; /* lvalue_check_c */ |
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