msousa@417: /*
msousa@417: * matiec - a compiler for the programming languages defined in IEC 61131-3
msousa@417: *
msousa@417: * Copyright (C) 2009-2011 Mario de Sousa (msousa@fe.up.pt)
msousa@417: * Copyright (C) 20011-2012 Manuele Conti (manuele.conti@sirius-es.it)
msousa@417: * Copyright (C) 20011-2012 Matteo Facchinetti (matteo.facchinetti@sirius-es.it)
msousa@417: *
msousa@417: * This program is free software: you can redistribute it and/or modify
msousa@417: * it under the terms of the GNU General Public License as published by
msousa@417: * the Free Software Foundation, either version 3 of the License, or
msousa@417: * (at your option) any later version.
msousa@417: *
msousa@417: * This program is distributed in the hope that it will be useful,
msousa@417: * but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@417: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
msousa@417: * GNU General Public License for more details.
msousa@417: *
msousa@417: * You should have received a copy of the GNU General Public License
msousa@417: * along with this program. If not, see .
msousa@417: *
msousa@417: *
msousa@417: * This code is made available on the understanding that it will not be
msousa@417: * used in safety-critical situations without a full and competent review.
msousa@417: */
msousa@417:
msousa@417: /*
msousa@417: * An IEC 61131-3 compiler.
msousa@417: *
msousa@417: * Based on the
msousa@417: * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
msousa@417: *
msousa@417: */
msousa@417:
msousa@417:
msousa@417: /*
msousa@417: * Fill candidate list of data types for all symbols
msousa@417: */
msousa@417:
msousa@417: #include "print_datatypes_error.hh"
msousa@417: #include
msousa@417: #include
msousa@417: #include
msousa@417: #include
msousa@417: #include
msousa@417:
msousa@417:
msousa@417: #define FIRST_(symbol1, symbol2) (((symbol1)->first_order < (symbol2)->first_order) ? (symbol1) : (symbol2))
msousa@417: #define LAST_(symbol1, symbol2) (((symbol1)->last_order > (symbol2)->last_order) ? (symbol1) : (symbol2))
msousa@417:
msousa@417: #define STAGE3_ERROR(symbol1, symbol2, ...) { \
msousa@417: fprintf(stderr, "%s:%d-%d..%d-%d: error : ", \
msousa@417: FIRST_(symbol1,symbol2)->first_file, FIRST_(symbol1,symbol2)->first_line, FIRST_(symbol1,symbol2)->first_column, \
msousa@417: LAST_(symbol1,symbol2) ->last_line, LAST_(symbol1,symbol2) ->last_column); \
msousa@417: fprintf(stderr, __VA_ARGS__); \
msousa@417: fprintf(stderr, "\n"); \
msousa@417: il_error = true; \
msousa@417: error_found = true;\
msousa@417: }
msousa@417:
msousa@417:
msousa@417: /* set to 1 to see debug info during execution */
msousa@417: static int debug = 0;
msousa@417:
msousa@417: print_datatypes_error_c::print_datatypes_error_c(symbol_c *ignore) {
msousa@417: error_found = false;
msousa@417: }
msousa@417:
msousa@417: print_datatypes_error_c::~print_datatypes_error_c(void) {
msousa@417: error_found = false;
msousa@417: }
msousa@417:
msousa@417: int print_datatypes_error_c::get_error_found() {
msousa@417: return error_found;
msousa@417: }
msousa@417:
msousa@417: /* a helper function... */
msousa@417: symbol_c *print_datatypes_error_c::base_type(symbol_c *symbol) {
msousa@417: /* NOTE: symbol == NULL is valid. It will occur when, for e.g., an undefined/undeclared symbolic_variable is used
msousa@417: * in the code.
msousa@417: */
msousa@417: if (symbol == NULL) return NULL;
msousa@417: return (symbol_c *)symbol->accept(search_base_type);
msousa@417: }
msousa@417:
msousa@417: /*********************/
msousa@417: /* B 1.2 - Constants */
msousa@417: /*********************/
msousa@417: /******************************/
msousa@417: /* B 1.2.1 - Numeric Literals */
msousa@417: /******************************/
msousa@417: void *print_datatypes_error_c::visit(real_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_REAL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_REAL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(integer_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(neg_real_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_REAL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_REAL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(neg_integer_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(binary_integer_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(octal_integer_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(hex_integer_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(integer_literal_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_INT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_INT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(real_literal_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_REAL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_REAL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(bit_string_literal_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_BIT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_BIT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(boolean_literal_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_BOOL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_BOOL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(boolean_true_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_BOOL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_BOOL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(boolean_false_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for ANY_BOOL data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "ANY_BOOL data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /*******************************/
msousa@417: /* B.1.2.2 Character Strings */
msousa@417: /*******************************/
msousa@417: void *print_datatypes_error_c::visit(double_byte_character_string_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for WSTRING data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "WSTRING data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(single_byte_character_string_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for STRING data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "STRING data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /***************************/
msousa@417: /* B 1.2.3 - Time Literals */
msousa@417: /***************************/
msousa@417: /************************/
msousa@417: /* B 1.2.3.1 - Duration */
msousa@417: /************************/
msousa@417: void *print_datatypes_error_c::visit(duration_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid syntax for TIME data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "TIME data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /************************************/
msousa@417: /* B 1.2.3.2 - Time of day and Date */
msousa@417: /************************************/
msousa@417: void *print_datatypes_error_c::visit(time_of_day_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid syntax for TOD data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "TOD data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(date_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid syntax for DATE data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "DATE data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(date_and_time_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid syntax for DT data type.");
msousa@417: } else if (NULL == symbol->datatype) {
msousa@417: STAGE3_ERROR(symbol, symbol, "DT data type not valid in this location.");
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /**********************/
msousa@417: /* B 1.3 - Data types */
msousa@417: /**********************/
msousa@417: /********************************/
msousa@417: /* B 1.3.3 - Derived data types */
msousa@417: /********************************/
msousa@417: void *print_datatypes_error_c::visit(data_type_declaration_c *symbol) {
msousa@417: // TODO !!!
msousa@417: /* for the moment we must return NULL so semantic analysis of remaining code is not interrupted! */
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(enumerated_value_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0)
msousa@417: STAGE3_ERROR(symbol, symbol, "Ambiguous enumerate value or Variable not declared in this scope.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: /*********************/
msousa@417: /* B 1.4 - Variables */
msousa@417: /*********************/
msousa@417: void *print_datatypes_error_c::visit(symbolic_variable_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0)
msousa@417: STAGE3_ERROR(symbol, symbol, "Variable not declared in this scope.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /********************************************/
msousa@417: /* B 1.4.1 - Directly Represented Variables */
msousa@417: /********************************************/
msousa@417: void *print_datatypes_error_c::visit(direct_variable_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0)
msousa@417: STAGE3_ERROR(symbol, symbol, "Numerical result exceeds range for located variable data type.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /*************************************/
msousa@417: /* B 1.4.2 - Multi-element variables */
msousa@417: /*************************************/
msousa@417: /* subscripted_variable '[' subscript_list ']' */
msousa@417: // SYM_REF2(array_variable_c, subscripted_variable, subscript_list)
msousa@417: void *print_datatypes_error_c::visit(array_variable_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0)
msousa@417: STAGE3_ERROR(symbol, symbol, "Array variable not declared in this scope.");
msousa@417:
msousa@417: /* recursively call the subscript list to print any errors in the expressions used in the subscript...*/
msousa@417: symbol->subscript_list->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /* subscript_list ',' subscript */
msousa@417: // SYM_LIST(subscript_list_c)
msousa@417: /* NOTE: we inherit from iterator visitor, so we do not need to implement this method... */
msousa@417: #if 0
msousa@417: void *print_datatypes_error_c::visit(subscript_list_c *symbol) {
msousa@417: }
msousa@417: #endif
msousa@417:
msousa@417:
msousa@417: /* record_variable '.' field_selector */
msousa@417: /* WARNING: input and/or output variables of function blocks
msousa@417: * may be accessed as fields of a structured variable!
msousa@417: * Code handling a structured_variable_c must take
msousa@417: * this into account!
msousa@417: */
msousa@417: // SYM_REF2(structured_variable_c, record_variable, field_selector)
msousa@417: /* NOTE: We do not recursively determine the data types of each field_selector in fill_candidate_datatypes_c,
msousa@417: * so it does not make sense to recursively visit all the field_selectors to print out error messages.
msousa@417: * Maybe in the future, if we find the need to print out more detailed error messages, we might do it that way. For now, we don't!
msousa@417: */
msousa@417: void *print_datatypes_error_c::visit(structured_variable_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() == 0)
msousa@417: STAGE3_ERROR(symbol, symbol, "Structure variable not declared in this scope.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /************************************/
msousa@417: /* B 1.5 Program organization units */
msousa@417: /************************************/
msousa@417: /*********************/
msousa@417: /* B 1.5.1 Functions */
msousa@417: /*********************/
msousa@417: void *print_datatypes_error_c::visit(function_declaration_c *symbol) {
msousa@417: search_varfb_instance_type = new search_varfb_instance_type_c(symbol);
msousa@417: /* We do not check for data type errors in variable declarations, Skip this for now... */
msousa@417: // symbol->var_declarations_list->accept(*this);
msousa@417: if (debug) printf("Print error data types list in body of function %s\n", ((token_c *)(symbol->derived_function_name))->value);
msousa@417: il_parenthesis_level = 0;
msousa@417: il_error = false;
msousa@417: prev_il_instruction = NULL;
msousa@417: symbol->function_body->accept(*this);
msousa@417: prev_il_instruction = NULL;
msousa@417: delete search_varfb_instance_type;
msousa@417: search_varfb_instance_type = NULL;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /***************************/
msousa@417: /* B 1.5.2 Function blocks */
msousa@417: /***************************/
msousa@417: void *print_datatypes_error_c::visit(function_block_declaration_c *symbol) {
msousa@417: search_varfb_instance_type = new search_varfb_instance_type_c(symbol);
msousa@417: /* We do not check for data type errors in variable declarations, Skip this for now... */
msousa@417: // symbol->var_declarations->accept(*this);
msousa@417: if (debug) printf("Print error data types list in body of FB %s\n", ((token_c *)(symbol->fblock_name))->value);
msousa@417: il_parenthesis_level = 0;
msousa@417: il_error = false;
msousa@417: prev_il_instruction = NULL;
msousa@417: symbol->fblock_body->accept(*this);
msousa@417: prev_il_instruction = NULL;
msousa@417: delete search_varfb_instance_type;
msousa@417: search_varfb_instance_type = NULL;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /**********************/
msousa@417: /* B 1.5.3 - Programs */
msousa@417: /**********************/
msousa@417: void *print_datatypes_error_c::visit(program_declaration_c *symbol) {
msousa@417: search_varfb_instance_type = new search_varfb_instance_type_c(symbol);
msousa@417: /* We do not check for data type errors in variable declarations, Skip this for now... */
msousa@417: // symbol->var_declarations->accept(*this);
msousa@417: if (debug) printf("Print error data types list in body of program %s\n", ((token_c *)(symbol->program_type_name))->value);
msousa@417: il_parenthesis_level = 0;
msousa@417: il_error = false;
msousa@417: prev_il_instruction = NULL;
msousa@417: symbol->function_block_body->accept(*this);
msousa@417: prev_il_instruction = NULL;
msousa@417: delete search_varfb_instance_type;
msousa@417: search_varfb_instance_type = NULL;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417:
msousa@417: /********************************/
msousa@417: /* B 1.7 Configuration elements */
msousa@417: /********************************/
msousa@417: void *print_datatypes_error_c::visit(configuration_declaration_c *symbol) {
msousa@417: #if 0
msousa@417: // TODO !!!
msousa@417: /* for the moment we must return NULL so semantic analysis of remaining code is not interrupted! */
msousa@417: #endif
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /****************************************/
msousa@417: /* B.2 - Language IL (Instruction List) */
msousa@417: /****************************************/
msousa@417: /***********************************/
msousa@417: /* B 2.1 Instructions and Operands */
msousa@417: /***********************************/
msousa@417: // void *visit(instruction_list_c *symbol);
msousa@417: void *print_datatypes_error_c::visit(il_simple_operation_c *symbol) {
msousa@417: il_operand = symbol->il_operand;
msousa@417: if (NULL != symbol->il_operand) {
msousa@417: symbol->il_operand->accept(*this);
msousa@417: }
msousa@417: /* recursive call to see whether data types are compatible */
msousa@417: symbol->il_simple_operator->accept(*this);
msousa@417: il_operand = NULL;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(il_function_call_c *symbol) {
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(il_expression_c *symbol) {
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(il_fb_call_c *symbol) {
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(il_formal_funct_call_c *symbol) {
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: /*
msousa@417: void *visit(il_operand_list_c *symbol);
msousa@417: void *visit(simple_instr_list_c *symbol);
msousa@417: void *visit(il_param_list_c *symbol);
msousa@417: void *visit(il_param_assignment_c *symbol);
msousa@417: void *visit(il_param_out_assignment_c *symbol);
msousa@417: */
msousa@417:
msousa@417: /*******************/
msousa@417: /* B 2.2 Operators */
msousa@417: /*******************/
msousa@417: void *print_datatypes_error_c::visit(LD_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(LDN_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'LDN' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(ST_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417: /* MANU:
msousa@417: * if prev_instruction is NULL we can print a message error or warning error like:
msousa@417: * we can't use a ST like first instruction.
msousa@417: * What do you think?
msousa@417: */
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'ST' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(STN_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417: /* MANU:
msousa@417: * if prev_instruction is NULL we can print a message error or warning error like:
msousa@417: * we can't use a ST like first instruction.
msousa@417: * What do you think?
msousa@417: */
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'STN' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(NOT_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(S_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'S' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(R_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'R' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(S1_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'S1' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(R1_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'R1' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CLK_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CU_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CD_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(PV_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(IN_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(PT_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(AND_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'AND' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(OR_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'OR' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(XOR_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'XOR' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(ANDN_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'ANDN' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(ORN_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'ORN' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(XORN_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'ORN' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(ADD_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'ADD' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(SUB_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'SUB' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(MUL_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'MUL' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(DIV_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'DIV' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(MOD_operator_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: il_operand->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (il_operand->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'MOD' operator.");
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(GT_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(GE_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(EQ_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(LT_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(LE_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(NE_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CAL_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CALC_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(CALCN_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(RET_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(RETC_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(RETCN_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(JMP_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(JMPC_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(JMPCN_operator_c *symbol) {
msousa@417: prev_il_instruction = symbol;
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /* Symbol class handled together with function call checks */
msousa@417: // void *visit(il_assign_operator_c *symbol, variable_name);
msousa@417: /* Symbol class handled together with function call checks */
msousa@417: // void *visit(il_assign_operator_c *symbol, option, variable_name);
msousa@417:
msousa@417: /***************************************/
msousa@417: /* B.3 - Language ST (Structured Text) */
msousa@417: /***************************************/
msousa@417: /***********************/
msousa@417: /* B 3.1 - Expressions */
msousa@417: /***********************/
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(or_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'OR' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(xor_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'XOR' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(and_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for 'AND' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(equ_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '=' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(notequ_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '<>' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(lt_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '<' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(gt_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '>' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(le_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '<=' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(ge_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '>=' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(add_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Current '+' result and operand not of same data type.");
msousa@417:
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(sub_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Current '-' result and operand not of same data type.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(mul_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Current '*' result and operand not of same data type.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(div_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Current '/' result and operand not of same data type.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(mod_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Current 'MOD' result and operand not of same data type.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(power_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Data type mismatch for '**' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(neg_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'NEG' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(not_expression_c *symbol) {
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417:
msousa@417: symbol->exp->accept(*this);
msousa@417: if ((symbol->candidate_datatypes.size() == 0) &&
msousa@417: (symbol->exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'NOT' expression.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(function_invocation_c *symbol) {
msousa@417: list_c *parameter_list;
msousa@417: function_declaration_c * f_decl;
msousa@417:
msousa@417: if (NULL != symbol->datatype) return NULL;
msousa@417: if (NULL != symbol->formal_param_list)
msousa@417: parameter_list = (list_c *)symbol->formal_param_list;
msousa@417: else if (NULL != symbol->nonformal_param_list)
msousa@417: parameter_list = (list_c *)symbol->nonformal_param_list;
msousa@417: else ERROR;
msousa@417: parameter_list->accept(*this);
msousa@417: if (symbol->candidate_datatypes.size() == 0) {
msousa@417: identifier_c *fname = (identifier_c *)symbol->function_name;
msousa@417: f_decl = (function_declaration_c *)symbol->called_function_declaration;
msousa@417: /*
msousa@417: * Manuele: In the future we have to test parameter number
msousa@417: * and show a specific message.
msousa@417: */
msousa@417: STAGE3_ERROR(symbol, symbol, "No matching overloaded '%s' function call.", fname->value);
msousa@417: }
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /********************/
msousa@417: /* B 3.2 Statements */
msousa@417: /********************/
msousa@417:
msousa@417: /*********************************/
msousa@417: /* B 3.2.1 Assignment Statements */
msousa@417: /*********************************/
msousa@417: void *print_datatypes_error_c::visit(assignment_statement_c *symbol) {
msousa@417: symbol->l_exp->accept(*this);
msousa@417: symbol->r_exp->accept(*this);
msousa@417: if ((NULL == symbol->l_exp->datatype) &&
msousa@417: (NULL == symbol->r_exp->datatype) &&
msousa@417: (symbol->l_exp->candidate_datatypes.size() > 0) &&
msousa@417: (symbol->r_exp->candidate_datatypes.size() > 0))
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data types for ':=' operation.");
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /********************************/
msousa@417: /* B 3.2.3 Selection Statements */
msousa@417: /********************************/
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(if_statement_c *symbol) {
msousa@417: symbol->expression->accept(*this);
msousa@417: if ((NULL == symbol->expression->datatype) &&
msousa@417: (symbol->expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'IF' condition.");
msousa@417: }
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417: if (NULL != symbol->elseif_statement_list)
msousa@417: symbol->elseif_statement_list->accept(*this);
msousa@417: if (NULL != symbol->else_statement_list)
msousa@417: symbol->else_statement_list->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(elseif_statement_c *symbol) {
msousa@417: symbol->expression->accept(*this);
msousa@417: if ((NULL == symbol->expression->datatype) &&
msousa@417: (symbol->expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'ELSIF' condition.");
msousa@417: }
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(case_statement_c *symbol) {
msousa@417: symbol->expression->accept(*this);
msousa@417: if ((NULL == symbol->expression->datatype) &&
msousa@417: (symbol->expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "'CASE' quantity not an integer or enumerated.");
msousa@417: }
msousa@417: symbol->case_element_list->accept(*this);
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: /********************************/
msousa@417: /* B 3.2.4 Iteration Statements */
msousa@417: /********************************/
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(for_statement_c *symbol) {
msousa@417: symbol->control_variable->accept(*this);
msousa@417: symbol->beg_expression->accept(*this);
msousa@417: symbol->end_expression->accept(*this);
msousa@417: /* Control variable */
msousa@417: if ((NULL == symbol->control_variable->datatype) &&
msousa@417: (symbol->control_variable->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'FOR' control variable.");
msousa@417: }
msousa@417: /* BEG expression */
msousa@417: if ((NULL == symbol->beg_expression->datatype) &&
msousa@417: (symbol->beg_expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'FOR' begin expression.");
msousa@417: }
msousa@417: /* END expression */
msousa@417: if ((NULL == symbol->end_expression->datatype) &&
msousa@417: (symbol->end_expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'FOR' end expression.");
msousa@417: }
msousa@417: /* BY expression */
msousa@417: if ((NULL != symbol->by_expression) &&
msousa@417: (NULL == symbol->by_expression->datatype) &&
msousa@417: (symbol->end_expression->candidate_datatypes.size() > 0)) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'FOR' by expression.");
msousa@417: }
msousa@417: /* DO statement */
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417:
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(while_statement_c *symbol) {
msousa@417: symbol->expression->accept(*this);
msousa@417: if (symbol->candidate_datatypes.size() != 1) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'WHILE' condition.");
msousa@417: return NULL;
msousa@417: }
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417: void *print_datatypes_error_c::visit(repeat_statement_c *symbol) {
msousa@417: if (symbol->candidate_datatypes.size() != 1) {
msousa@417: STAGE3_ERROR(symbol, symbol, "Invalid data type for 'REPEAT' condition.");
msousa@417: return NULL;
msousa@417: }
msousa@417: if (NULL != symbol->statement_list)
msousa@417: symbol->statement_list->accept(*this);
msousa@417: symbol->expression->accept(*this);
msousa@417: return NULL;
msousa@417: }
msousa@417:
msousa@417:
msousa@417:
msousa@417:
msousa@417: