author | Mario de Sousa <msousa@fe.up.pt> |
Fri, 29 Jul 2011 16:05:03 +0100 | |
changeset 351 | e7d236750709 |
parent 350 | 2c3c4dc34979 |
child 355 | 30db860bd3bd |
permissions | -rwxr-xr-x |
219 | 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) 2003-2011 Mario de Sousa (msousa@fe.up.pt) |
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* Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant |
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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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#define INLINE_RESULT_TEMP_VAR "__res" |
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||
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class generate_c_inlinefcall_c: public generate_c_typedecl_c { |
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public: |
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typedef enum { |
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expression_vg, |
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assignment_vg, |
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complextype_base_vg, |
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complextype_suffix_vg |
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} variablegeneration_t; |
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private: |
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/* The name of the IL default variable... */ |
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#define IL_DEFVAR VAR_LEADER "IL_DEFVAR" |
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/* The name of the variable used to pass the result of a |
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* parenthesised instruction list to the immediately preceding |
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* scope ... |
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*/ |
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il_default_variable_c default_variable_name; |
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symbol_c* current_array_type; |
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int fcall_number; |
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symbol_c *fbname; |
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53 |
search_expression_type_c *search_expression_type; |
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54 |
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55 |
search_varfb_instance_type_c *search_varfb_instance_type; |
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56 |
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57 |
search_base_type_c search_base_type; |
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variablegeneration_t wanted_variablegeneration; |
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public: |
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generate_c_inlinefcall_c(stage4out_c *s4o_ptr, symbol_c *name, symbol_c *scope, const char *variable_prefix = NULL) |
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: generate_c_typedecl_c(s4o_ptr), |
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default_variable_name(IL_DEFVAR, NULL) |
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65 |
{ |
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search_expression_type = new search_expression_type_c(scope); |
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search_varfb_instance_type = new search_varfb_instance_type_c(scope); |
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this->set_variable_prefix(variable_prefix); |
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fcall_number = 0; |
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fbname = name; |
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wanted_variablegeneration = expression_vg; |
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} |
73 |
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virtual ~generate_c_inlinefcall_c(void) { |
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delete search_expression_type; |
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delete search_varfb_instance_type; |
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} |
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void print(symbol_c* symbol) { |
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function_call_iterator_c fc_iterator(symbol); |
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symbol_c* function_call; |
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while ((function_call = fc_iterator.next()) != NULL) { |
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function_call->accept(*this); |
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} |
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} |
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void generate_inline(symbol_c *function_name, |
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symbol_c *function_type_prefix, |
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symbol_c *function_type_suffix, |
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std::list<FUNCTION_PARAM*> param_list, |
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function_declaration_c *f_decl = NULL) { |
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std::list<FUNCTION_PARAM*>::iterator pt; |
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fcall_number++; |
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function_type_prefix = search_expression_type->default_literal_type(function_type_prefix); |
98 |
if (function_type_suffix) { |
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function_type_suffix = search_expression_type->default_literal_type(function_type_suffix); |
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} |
219 | 101 |
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102 |
s4o.print(s4o.indent_spaces); |
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103 |
s4o.print("inline "); |
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235 | 104 |
function_type_prefix->accept(*this); |
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s4o.print(" __"); |
106 |
fbname->accept(*this); |
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s4o.print("_"); |
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function_name->accept(*this); |
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if (f_decl != NULL) { |
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printf("generate_inline(): calling print_function_parameter_data_types_c !!!!!!!!!!!!!!!!!!!!!!\n"); |
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print_function_parameter_data_types_c overloaded_func_suf(&s4o); |
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f_decl->accept(overloaded_func_suf); |
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} |
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if (function_type_suffix) { |
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function_type_suffix->accept(*this); |
336 | 116 |
} |
219 | 117 |
s4o.print_integer(fcall_number); |
118 |
s4o.print("("); |
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119 |
s4o.indent_right(); |
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120 |
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121 |
PARAM_LIST_ITERATOR() { |
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122 |
if (PARAM_DIRECTION == function_param_iterator_c::direction_in) { |
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search_expression_type->default_literal_type(PARAM_TYPE)->accept(*this); |
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s4o.print(" "); |
125 |
PARAM_NAME->accept(*this); |
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126 |
s4o.print(",\n" + s4o.indent_spaces); |
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127 |
} |
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128 |
} |
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fbname->accept(*this); |
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s4o.print(" *"); |
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s4o.print(FB_FUNCTION_PARAM); |
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s4o.indent_left(); |
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s4o.print(")\n" + s4o.indent_spaces); |
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s4o.print("{\n"); |
219 | 135 |
s4o.indent_right(); |
136 |
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137 |
s4o.print(s4o.indent_spaces); |
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235 | 138 |
function_type_prefix->accept(*this); |
219 | 139 |
s4o.print(" "), |
140 |
s4o.print(INLINE_RESULT_TEMP_VAR); |
|
141 |
s4o.print(";\n"); |
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142 |
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PARAM_LIST_ITERATOR() { |
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if ((PARAM_DIRECTION == function_param_iterator_c::direction_out || |
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PARAM_DIRECTION == function_param_iterator_c::direction_inout) && |
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PARAM_VALUE != NULL) { |
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s4o.print(s4o.indent_spaces); |
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PARAM_TYPE->accept(*this); |
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s4o.print(" "); |
150 |
s4o.print(TEMP_VAR); |
|
151 |
PARAM_NAME->accept(*this); |
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152 |
s4o.print(" = "); |
|
153 |
print_check_function(PARAM_TYPE, PARAM_VALUE); |
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154 |
s4o.print(";\n"); |
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} |
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} |
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s4o.print(s4o.indent_spaces + INLINE_RESULT_TEMP_VAR), |
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159 |
s4o.print(" = "); |
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function_name->accept(*this); |
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if (f_decl != NULL) { |
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162 |
printf("generate_inline(): calling print_function_parameter_data_types_c !!!!!!!!!!!!!!!!!!!!!!\n"); |
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163 |
print_function_parameter_data_types_c overloaded_func_suf(&s4o); |
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164 |
f_decl->accept(overloaded_func_suf); |
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165 |
} |
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166 |
|
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167 |
if (function_type_suffix) |
235 | 168 |
function_type_suffix->accept(*this); |
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169 |
s4o.print("("); |
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s4o.indent_right(); |
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171 |
|
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172 |
PARAM_LIST_ITERATOR() { |
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if (pt != param_list.begin()) |
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174 |
s4o.print(",\n" + s4o.indent_spaces); |
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175 |
if (PARAM_DIRECTION == function_param_iterator_c::direction_in) |
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176 |
PARAM_NAME->accept(*this); |
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177 |
else if (PARAM_VALUE != NULL){ |
219 | 178 |
s4o.print("&"); |
179 |
s4o.print(TEMP_VAR); |
|
180 |
PARAM_NAME->accept(*this); |
|
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181 |
} else { |
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|
182 |
s4o.print("NULL"); |
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|
183 |
} |
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|
184 |
} |
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|
185 |
s4o.print(");\n"); |
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parents:
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diff
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|
186 |
s4o.indent_left(); |
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|
187 |
|
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|
188 |
PARAM_LIST_ITERATOR() { |
219 | 189 |
if ((PARAM_DIRECTION == function_param_iterator_c::direction_out || |
350
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parents:
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|
190 |
PARAM_DIRECTION == function_param_iterator_c::direction_inout) && |
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parents:
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|
191 |
PARAM_VALUE != NULL) { |
219 | 192 |
s4o.print(s4o.indent_spaces); |
228
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|
193 |
print_setter(PARAM_VALUE, PARAM_TYPE, PARAM_NAME); |
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|
194 |
s4o.print(";\n"); |
350
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parents:
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diff
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|
195 |
} |
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diff
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|
196 |
} |
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parents:
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|
197 |
s4o.print(s4o.indent_spaces + "return "); |
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|
198 |
s4o.print(INLINE_RESULT_TEMP_VAR); |
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|
199 |
s4o.print(";\n"); |
219 | 200 |
|
201 |
s4o.indent_left(); |
|
202 |
s4o.print(s4o.indent_spaces + "}\n\n"); |
|
203 |
} |
|
204 |
||
205 |
private: |
|
206 |
||
228
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|
207 |
void *print_getter(symbol_c *symbol) { |
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|
208 |
unsigned int vartype = search_varfb_instance_type->get_vartype(symbol); |
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|
209 |
if (vartype == search_var_instance_decl_c::external_vt) |
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210 |
s4o.print(GET_EXTERNAL); |
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|
211 |
else if (vartype == search_var_instance_decl_c::located_vt) |
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|
212 |
s4o.print(GET_LOCATED); |
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|
213 |
else |
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214 |
s4o.print(GET_VAR); |
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|
215 |
s4o.print("("); |
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|
216 |
|
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|
217 |
wanted_variablegeneration = complextype_base_vg; |
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|
218 |
symbol->accept(*this); |
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|
219 |
if (search_varfb_instance_type->type_is_complex()) |
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|
220 |
s4o.print(","); |
43831b683764
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changeset
|
221 |
wanted_variablegeneration = complextype_suffix_vg; |
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|
222 |
symbol->accept(*this); |
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|
223 |
s4o.print(")"); |
43831b683764
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|
224 |
wanted_variablegeneration = expression_vg; |
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|
225 |
return NULL; |
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|
226 |
} |
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227 |
|
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228 |
void *print_setter(symbol_c* symbol, |
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|
229 |
symbol_c* type, |
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|
230 |
symbol_c* value) { |
43831b683764
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|
231 |
unsigned int vartype = search_varfb_instance_type->get_vartype(symbol); |
231
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|
232 |
if (vartype == search_var_instance_decl_c::external_vt) { |
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|
233 |
symbolic_variable_c *variable = dynamic_cast<symbolic_variable_c *>(symbol); |
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|
234 |
/* TODO Find a solution for forcing global complex variables */ |
b8527b0abe75
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diff
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|
235 |
if (variable != NULL) { |
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diff
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|
236 |
s4o.print(SET_EXTERNAL); |
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changeset
|
237 |
s4o.print("("); |
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diff
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|
238 |
variable->var_name->accept(*this); |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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diff
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|
239 |
s4o.print(","); |
b8527b0abe75
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228
diff
changeset
|
240 |
} |
b8527b0abe75
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diff
changeset
|
241 |
else { |
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|
242 |
s4o.print(SET_COMPLEX_EXTERNAL); |
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diff
changeset
|
243 |
s4o.print("("); |
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diff
changeset
|
244 |
} |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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diff
changeset
|
245 |
} |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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diff
changeset
|
246 |
else { |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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diff
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|
247 |
if (vartype == search_var_instance_decl_c::located_vt) |
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diff
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|
248 |
s4o.print(SET_LOCATED); |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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parents:
228
diff
changeset
|
249 |
else |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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parents:
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diff
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|
250 |
s4o.print(SET_VAR); |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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parents:
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diff
changeset
|
251 |
s4o.print("("); |
b8527b0abe75
Adding support for forcing global without perturbation from setting external
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parents:
228
diff
changeset
|
252 |
} |
228
43831b683764
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diff
changeset
|
253 |
|
43831b683764
Adding support for setter and getter on complex datatype in IL
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diff
changeset
|
254 |
wanted_variablegeneration = complextype_base_vg; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
255 |
symbol->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
256 |
s4o.print(","); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
257 |
wanted_variablegeneration = expression_vg; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
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diff
changeset
|
258 |
print_check_function(type, value, NULL, true); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
259 |
if (search_varfb_instance_type->type_is_complex()) { |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
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diff
changeset
|
260 |
s4o.print(","); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
261 |
wanted_variablegeneration = complextype_suffix_vg; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
262 |
symbol->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
263 |
} |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
264 |
s4o.print(")"); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
265 |
wanted_variablegeneration = expression_vg; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
266 |
return NULL; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
267 |
} |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
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diff
changeset
|
268 |
|
219 | 269 |
/*********************/ |
270 |
/* B 1.4 - Variables */ |
|
271 |
/*********************/ |
|
272 |
void *visit(symbolic_variable_c *symbol) { |
|
228
43831b683764
Adding support for setter and getter on complex datatype in IL
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diff
changeset
|
273 |
unsigned int vartype; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
274 |
if (wanted_variablegeneration == complextype_base_vg) |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
275 |
generate_c_base_c::visit(symbol); |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
276 |
else if (wanted_variablegeneration == complextype_suffix_vg) |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
277 |
return NULL; |
221
c6aed7e5f070
Adding support for flags on Function Block variables for marking which variable must be debugged, retained or is forced
laurent
parents:
219
diff
changeset
|
278 |
else |
235 | 279 |
print_getter(symbol); |
219 | 280 |
return NULL; |
281 |
} |
|
282 |
||
283 |
/********************************************/ |
|
284 |
/* B.1.4.1 Directly Represented Variables */ |
|
285 |
/********************************************/ |
|
286 |
// direct_variable: direct_variable_token {$$ = new direct_variable_c($1);}; |
|
287 |
void *visit(direct_variable_c *symbol) { |
|
288 |
TRACE("direct_variable_c"); |
|
289 |
/* Do not use print_token() as it will change everything into uppercase */ |
|
290 |
if (strlen(symbol->value) == 0) ERROR; |
|
291 |
s4o.print(GET_LOCATED); |
|
292 |
s4o.print("("); |
|
293 |
this->print_variable_prefix(); |
|
294 |
s4o.printlocation(symbol->value + 1); |
|
295 |
s4o.print(")"); |
|
296 |
return NULL; |
|
297 |
} |
|
298 |
||
228
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
299 |
/*************************************/ |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
300 |
/* B.1.4.2 Multi-element Variables */ |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
301 |
/*************************************/ |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
302 |
|
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
303 |
// SYM_REF2(structured_variable_c, record_variable, field_selector) |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
304 |
void *visit(structured_variable_c *symbol) { |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
305 |
TRACE("structured_variable_c"); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
306 |
switch (wanted_variablegeneration) { |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
307 |
case complextype_base_vg: |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
308 |
symbol->record_variable->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
309 |
break; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
310 |
case complextype_suffix_vg: |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
311 |
symbol->record_variable->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
312 |
s4o.print("."); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
313 |
symbol->field_selector->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
314 |
break; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
315 |
default: |
237 | 316 |
print_getter(symbol); |
228
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
317 |
break; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
318 |
} |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
319 |
return NULL; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
320 |
} |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
321 |
|
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
322 |
/* subscripted_variable '[' subscript_list ']' */ |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
323 |
//SYM_REF2(array_variable_c, subscripted_variable, subscript_list) |
43831b683764
Adding support for setter and getter on complex datatype in IL
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parents:
221
diff
changeset
|
324 |
void *visit(array_variable_c *symbol) { |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
325 |
switch (wanted_variablegeneration) { |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
326 |
case complextype_base_vg: |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
327 |
symbol->subscripted_variable->accept(*this); |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
328 |
break; |
43831b683764
Adding support for setter and getter on complex datatype in IL
berem
parents:
221
diff
changeset
|
329 |
case complextype_suffix_vg: |
238
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
330 |
symbol->subscripted_variable->accept(*this); |
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
331 |
|
321
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
332 |
current_array_type = search_varfb_instance_type->get_type_id(symbol->subscripted_variable); |
238
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
333 |
if (current_array_type == NULL) ERROR; |
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
334 |
|
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
335 |
s4o.print(".table"); |
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
336 |
symbol->subscript_list->accept(*this); |
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
237
diff
changeset
|
337 |
|
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
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diff
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|
338 |
current_array_type = NULL; |
228
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Adding support for setter and getter on complex datatype in IL
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diff
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|
339 |
break; |
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Adding support for setter and getter on complex datatype in IL
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|
340 |
default: |
237 | 341 |
print_getter(symbol); |
228
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Adding support for setter and getter on complex datatype in IL
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diff
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|
342 |
break; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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diff
changeset
|
343 |
} |
43831b683764
Adding support for setter and getter on complex datatype in IL
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|
344 |
return NULL; |
43831b683764
Adding support for setter and getter on complex datatype in IL
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changeset
|
345 |
} |
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|
346 |
|
219 | 347 |
/****************************************/ |
348 |
/* B.2 - Language IL (Instruction List) */ |
|
349 |
/****************************************/ |
|
350 |
||
351 |
/***********************************/ |
|
352 |
/* B 2.1 Instructions and Operands */ |
|
353 |
/***********************************/ |
|
354 |
||
355 |
void *visit(il_function_call_c *symbol) { |
|
235 | 356 |
symbol_c* function_type_prefix = NULL; |
350
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357 |
symbol_c* function_name = NULL; |
235 | 358 |
symbol_c* function_type_suffix = NULL; |
359 |
DECLARE_PARAM_LIST() |
|
360 |
||
361 |
symbol_c *param_data_type = default_variable_name.current_type; |
|
362 |
||
363 |
function_call_param_iterator_c function_call_param_iterator(symbol); |
|
364 |
||
350
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365 |
function_declaration_c *f_decl = (function_declaration_c *)symbol->called_function_declaration; |
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|
366 |
if (f_decl == NULL) ERROR; |
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|
367 |
|
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|
368 |
/* determine the base data type returned by the function being called... */ |
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|
369 |
search_base_type_c search_base_type; |
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|
370 |
function_type_prefix = (symbol_c *)f_decl->type_name->accept(search_base_type); |
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|
371 |
|
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|
372 |
function_name = symbol->function_name; |
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|
373 |
|
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|
374 |
/* loop through each function parameter, find the value we should pass |
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|
375 |
* to it, and then output the c equivalent... |
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|
376 |
*/ |
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|
377 |
|
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|
378 |
function_param_iterator_c fp_iterator(f_decl); |
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|
379 |
identifier_c *param_name; |
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|
380 |
/* flag to remember whether we have already used the value stored in the default variable to pass to the first parameter */ |
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381 |
bool used_defvar = false; |
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382 |
/* flag to cirreclty handle calls to extensible standard functions (i.e. functions with variable number of input parameters) */ |
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383 |
bool found_first_extensible_parameter = false; |
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|
384 |
for(int i = 1; (param_name = fp_iterator.next()) != NULL; i++) { |
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|
385 |
if (fp_iterator.is_extensible_param() && (!found_first_extensible_parameter)) { |
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|
386 |
/* We are calling an extensible function. Before passing the extensible |
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|
387 |
* parameters, we must add a dummy paramater value to tell the called |
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|
388 |
* function how many extensible parameters we will be passing. |
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|
389 |
* |
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changeset
|
390 |
* Note that stage 3 has already determined the number of extensible |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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|
391 |
* paramters, and stored that info in the abstract syntax tree. We simply |
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Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
392 |
* re-use that value. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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diff
changeset
|
393 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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diff
changeset
|
394 |
/* NOTE: we are not freeing the malloc'd memory. This is not really a bug. |
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Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
395 |
* Since we are writing a compiler, which runs to termination quickly, |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
396 |
* we can consider this as just memory required for the compilation process |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
397 |
* that will be free'd when the program terminates. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
398 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
399 |
char *tmp = (char *)malloc(32); /* enough space for a call with 10^31 (larger than 2^64) input parameters! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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diff
changeset
|
400 |
if (tmp == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
401 |
int res = snprintf(tmp, 32, "%d", symbol->extensible_param_count); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
402 |
if ((res >= 32) || (res < 0)) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
403 |
identifier_c *param_value = new identifier_c(tmp); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
404 |
uint_type_name_c *param_type = new uint_type_name_c(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
405 |
identifier_c *param_name = new identifier_c(""); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
406 |
ADD_PARAM_LIST(param_name, param_value, param_type, function_param_iterator_c::direction_in) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
407 |
found_first_extensible_parameter = true; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
408 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
409 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
410 |
symbol_c *param_type = fp_iterator.param_type(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
411 |
if (param_type == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
412 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
413 |
function_param_iterator_c::param_direction_t param_direction = fp_iterator.param_direction(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
414 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
415 |
symbol_c *param_value = NULL; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
416 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
417 |
/* Get the value from a foo(<param_name> = <param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
418 |
/* NOTE: the following line of code is not required in this case, but it doesn't |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
419 |
* harm to leave it in, as in the case of a non-formal syntax function call, |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
420 |
* it will always return NULL. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
421 |
* We leave it in in case we later decide to merge this part of the code together |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
422 |
* with the function calling code in generate_c_st_c, which does require |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
423 |
* the following line... |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
424 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
425 |
if (param_value == NULL) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
426 |
param_value = function_call_param_iterator.search_f(param_name); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
427 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
428 |
/* if it is the first parameter in a non-formal function call (which is the |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
429 |
* case being handled!), semantics specifies that we should |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
430 |
* get the value off the IL default variable! |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
431 |
* |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
432 |
* However, if the parameter is an implicitly defined EN or ENO parameter, we should not |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
433 |
* use the default variable as a source of data to pass to those parameters! |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
434 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
435 |
if ((param_value == NULL) && (!used_defvar) && !fp_iterator.is_en_eno_param_implicit()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
436 |
param_value = &this->default_variable_name; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
437 |
used_defvar = true; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
438 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
439 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
440 |
/* Get the value from a foo(<param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
441 |
if ((param_value == NULL) && !fp_iterator.is_en_eno_param_implicit()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
442 |
param_value = function_call_param_iterator.next_nf(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
443 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
444 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
445 |
/* if no more parameter values in function call, and the current parameter |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
446 |
* of the function declaration is an extensible parameter, we |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
447 |
* have reached the end, and should simply jump out of the for loop. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
448 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
449 |
if ((param_value == NULL) && (fp_iterator.is_extensible_param())) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
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changeset
|
450 |
break; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
451 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
452 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
453 |
if ((param_value == NULL) && (param_direction == function_param_iterator_c::direction_in)) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
454 |
/* No value given for parameter, so we must use the default... */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
455 |
/* First check whether default value specified in function declaration...*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
456 |
param_value = fp_iterator.default_value(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
457 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
458 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
459 |
ADD_PARAM_LIST(param_name, param_value, param_type, fp_iterator.param_direction()) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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changeset
|
460 |
} /* for(...) */ |
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diff
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|
461 |
|
2c3c4dc34979
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|
462 |
if (function_call_param_iterator.next_nf() != NULL) ERROR; |
235 | 463 |
if (NULL == function_type_prefix) ERROR; |
464 |
||
465 |
bool has_output_params = false; |
|
466 |
||
467 |
PARAM_LIST_ITERATOR() { |
|
468 |
if ((PARAM_DIRECTION == function_param_iterator_c::direction_out || |
|
469 |
PARAM_DIRECTION == function_param_iterator_c::direction_inout) && |
|
470 |
PARAM_VALUE != NULL) { |
|
471 |
has_output_params = true; |
|
472 |
} |
|
473 |
} |
|
474 |
||
350
2c3c4dc34979
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diff
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|
475 |
/* Check whether we are calling an overloaded function! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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|
476 |
/* (fdecl_mutiplicity==2) => calling overloaded function */ |
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|
477 |
int fdecl_mutiplicity = function_symtable.multiplicity(symbol->function_name); |
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Support for semantic verification of calls to standard functions.
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|
478 |
if (fdecl_mutiplicity == 0) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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|
479 |
if (fdecl_mutiplicity == 1) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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diff
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|
480 |
/* function being called is NOT overloaded! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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diff
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|
481 |
f_decl = NULL; |
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Support for semantic verification of calls to standard functions.
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diff
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|
482 |
|
235 | 483 |
if (has_output_params) |
350
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Support for semantic verification of calls to standard functions.
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|
484 |
generate_inline(function_name, function_type_prefix, function_type_suffix, param_list, f_decl); |
235 | 485 |
|
486 |
CLEAR_PARAM_LIST() |
|
487 |
||
488 |
return NULL; |
|
489 |
} |
|
490 |
||
491 |
/* | function_name '(' eol_list [il_param_list] ')' */ |
|
492 |
// SYM_REF2(il_formal_funct_call_c, function_name, il_param_list) |
|
219 | 493 |
void *visit(il_formal_funct_call_c *symbol) { |
235 | 494 |
symbol_c* function_type_prefix = NULL; |
495 |
symbol_c* function_name = NULL; |
|
496 |
symbol_c* function_type_suffix = NULL; |
|
497 |
DECLARE_PARAM_LIST() |
|
498 |
||
499 |
function_call_param_iterator_c function_call_param_iterator(symbol); |
|
500 |
||
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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|
501 |
function_declaration_c *f_decl = (function_declaration_c *)symbol->called_function_declaration; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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changeset
|
502 |
if (f_decl == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
503 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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changeset
|
504 |
/* determine the base data type returned by the function being called... */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
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changeset
|
505 |
search_base_type_c search_base_type; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
diff
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|
506 |
function_type_prefix = (symbol_c *)f_decl->type_name->accept(search_base_type); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
507 |
if (NULL == function_type_prefix) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
508 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
509 |
function_name = symbol->function_name; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
510 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
511 |
/* loop through each function parameter, find the value we should pass |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
512 |
* to it, and then output the c equivalent... |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
513 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
514 |
function_param_iterator_c fp_iterator(f_decl); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
515 |
identifier_c *param_name; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
516 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
517 |
/* flag to cirreclty handle calls to extensible standard functions (i.e. functions with variable number of input parameters) */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
518 |
bool found_first_extensible_parameter = false; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
519 |
for(int i = 1; (param_name = fp_iterator.next()) != NULL; i++) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
520 |
if (fp_iterator.is_extensible_param() && (!found_first_extensible_parameter)) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
521 |
/* We are calling an extensible function. Before passing the extensible |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
522 |
* parameters, we must add a dummy paramater value to tell the called |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
523 |
* function how many extensible parameters we will be passing. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
524 |
* |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
525 |
* Note that stage 3 has already determined the number of extensible |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
526 |
* paramters, and stored that info in the abstract syntax tree. We simply |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
527 |
* re-use that value. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
528 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
529 |
/* NOTE: we are not freeing the malloc'd memory. This is not really a bug. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
530 |
* Since we are writing a compiler, which runs to termination quickly, |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
531 |
* we can consider this as just memory required for the compilation process |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
532 |
* that will be free'd when the program terminates. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
533 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
534 |
char *tmp = (char *)malloc(32); /* enough space for a call with 10^31 (larger than 2^64) input parameters! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
535 |
if (tmp == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
536 |
int res = snprintf(tmp, 32, "%d", symbol->extensible_param_count); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
537 |
if ((res >= 32) || (res < 0)) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
538 |
identifier_c *param_value = new identifier_c(tmp); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
539 |
uint_type_name_c *param_type = new uint_type_name_c(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
540 |
identifier_c *param_name = new identifier_c(""); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
541 |
ADD_PARAM_LIST(param_name, param_value, param_type, function_param_iterator_c::direction_in) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
542 |
found_first_extensible_parameter = true; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
543 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
544 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
545 |
if (fp_iterator.is_extensible_param()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
546 |
/* since we are handling an extensible parameter, we must add the index to the |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
547 |
* parameter name so we can go looking for the value passed to the correct |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
548 |
* extended parameter (e.g. IN1, IN2, IN3, IN4, ...) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
549 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
550 |
char *tmp = (char *)malloc(32); /* enough space for a call with 10^31 (larger than 2^64) input parameters! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
551 |
int res = snprintf(tmp, 32, "%d", fp_iterator.extensible_param_index()); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
552 |
if ((res >= 32) || (res < 0)) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
553 |
param_name = new identifier_c(strdup2(param_name->value, tmp)); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
554 |
if (param_name->value == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
555 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
556 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
557 |
symbol_c *param_type = fp_iterator.param_type(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
558 |
if (param_type == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
559 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
560 |
function_param_iterator_c::param_direction_t param_direction = fp_iterator.param_direction(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
561 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
562 |
symbol_c *param_value = NULL; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
563 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
564 |
/* Get the value from a foo(<param_name> = <param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
565 |
if (param_value == NULL) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
566 |
param_value = function_call_param_iterator.search_f(param_name); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
567 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
568 |
/* Get the value from a foo(<param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
569 |
/* NOTE: the following line of code is not required in this case, but it doesn't |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
570 |
* harm to leave it in, as in the case of a formal syntax function call, |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
571 |
* it will always return NULL. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
572 |
* We leave it in in case we later decide to merge this part of the code together |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
573 |
* with the function calling code in generate_c_st_c, which does require |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
574 |
* the following line... |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
575 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
576 |
if ((param_value == NULL) && !fp_iterator.is_en_eno_param_implicit()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
577 |
param_value = function_call_param_iterator.next_nf(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
578 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
579 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
580 |
/* if no more parameter values in function call, and the current parameter |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
581 |
* of the function declaration is an extensible parameter, we |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
582 |
* have reached the end, and should simply jump out of the for loop. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
583 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
584 |
if ((param_value == NULL) && (fp_iterator.is_extensible_param())) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
585 |
break; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
586 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
587 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
588 |
if ((param_value == NULL) && (param_direction == function_param_iterator_c::direction_in)) { |
2c3c4dc34979
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|
589 |
/* No value given for parameter, so we must use the default... */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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diff
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|
590 |
/* First check whether default value specified in function declaration...*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
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|
591 |
param_value = fp_iterator.default_value(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
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|
592 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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changeset
|
593 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
594 |
ADD_PARAM_LIST(param_name, param_value, param_type, fp_iterator.param_direction()) |
235 | 595 |
} |
596 |
||
597 |
if (function_call_param_iterator.next_nf() != NULL) ERROR; |
|
598 |
||
599 |
bool has_output_params = false; |
|
600 |
||
601 |
PARAM_LIST_ITERATOR() { |
|
602 |
if ((PARAM_DIRECTION == function_param_iterator_c::direction_out || |
|
603 |
PARAM_DIRECTION == function_param_iterator_c::direction_inout) && |
|
604 |
PARAM_VALUE != NULL) { |
|
605 |
has_output_params = true; |
|
219 | 606 |
} |
235 | 607 |
} |
608 |
||
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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diff
changeset
|
609 |
/* Check whether we are calling an overloaded function! */ |
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parents:
336
diff
changeset
|
610 |
/* (fdecl_mutiplicity==2) => calling overloaded function */ |
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Support for semantic verification of calls to standard functions.
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|
611 |
int fdecl_mutiplicity = function_symtable.multiplicity(symbol->function_name); |
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Support for semantic verification of calls to standard functions.
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changeset
|
612 |
if (fdecl_mutiplicity == 0) ERROR; |
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Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
613 |
if (fdecl_mutiplicity == 1) |
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Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
614 |
/* function being called is NOT overloaded! */ |
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Support for semantic verification of calls to standard functions.
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|
615 |
f_decl = NULL; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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336
diff
changeset
|
616 |
|
235 | 617 |
if (has_output_params) |
350
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Support for semantic verification of calls to standard functions.
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|
618 |
generate_inline(function_name, function_type_prefix, function_type_suffix, param_list, f_decl); |
235 | 619 |
|
620 |
CLEAR_PARAM_LIST() |
|
621 |
||
219 | 622 |
return NULL; |
623 |
} |
|
624 |
||
625 |
/***************************************/ |
|
626 |
/* B.3 - Language ST (Structured Text) */ |
|
627 |
/***************************************/ |
|
628 |
/***********************/ |
|
629 |
/* B 3.1 - Expressions */ |
|
630 |
/***********************/ |
|
631 |
||
632 |
void *visit(function_invocation_c *symbol) { |
|
235 | 633 |
symbol_c* function_type_prefix = NULL; |
634 |
symbol_c* function_name = NULL; |
|
635 |
symbol_c* function_type_suffix = NULL; |
|
636 |
DECLARE_PARAM_LIST() |
|
637 |
||
638 |
symbol_c *parameter_assignment_list = NULL; |
|
639 |
if (NULL != symbol-> formal_param_list) parameter_assignment_list = symbol-> formal_param_list; |
|
640 |
if (NULL != symbol->nonformal_param_list) parameter_assignment_list = symbol->nonformal_param_list; |
|
641 |
if (NULL == parameter_assignment_list) ERROR; |
|
642 |
||
643 |
function_call_param_iterator_c function_call_param_iterator(symbol); |
|
644 |
||
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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|
645 |
function_declaration_c *f_decl = (function_declaration_c *)symbol->called_function_declaration; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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changeset
|
646 |
if (f_decl == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
647 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
648 |
function_name = symbol->function_name; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
649 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
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changeset
|
650 |
/* determine the base data type returned by the function being called... */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
651 |
search_base_type_c search_base_type; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
652 |
function_type_prefix = (symbol_c *)f_decl->type_name->accept(search_base_type); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
653 |
if (NULL == function_type_prefix) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
654 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
655 |
/* loop through each function parameter, find the value we should pass |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
656 |
* to it, and then output the c equivalent... |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
657 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
658 |
function_param_iterator_c fp_iterator(f_decl); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
659 |
identifier_c *param_name; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
660 |
/* flag to cirreclty handle calls to extensible standard functions (i.e. functions with variable number of input parameters) */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
661 |
bool found_first_extensible_parameter = false; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
662 |
for(int i = 1; (param_name = fp_iterator.next()) != NULL; i++) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
336
diff
changeset
|
663 |
if (fp_iterator.is_extensible_param() && (!found_first_extensible_parameter)) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
664 |
/* We are calling an extensible function. Before passing the extensible |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
665 |
* parameters, we must add a dummy paramater value to tell the called |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
666 |
* function how many extensible parameters we will be passing. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
667 |
* |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
668 |
* Note that stage 3 has already determined the number of extensible |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
669 |
* paramters, and stored that info in the abstract syntax tree. We simply |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
670 |
* re-use that value. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
671 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
672 |
/* NOTE: we are not freeing the malloc'd memory. This is not really a bug. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
673 |
* Since we are writing a compiler, which runs to termination quickly, |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
674 |
* we can consider this as just memory required for the compilation process |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
675 |
* that will be free'd when the program terminates. |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
676 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
677 |
char *tmp = (char *)malloc(32); /* enough space for a call with 10^31 (larger than 2^64) input parameters! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
678 |
if (tmp == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
679 |
int res = snprintf(tmp, 32, "%d", symbol->extensible_param_count); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
680 |
if ((res >= 32) || (res < 0)) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
681 |
identifier_c *param_value = new identifier_c(tmp); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
682 |
uint_type_name_c *param_type = new uint_type_name_c(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
683 |
identifier_c *param_name = new identifier_c(""); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
684 |
ADD_PARAM_LIST(param_name, param_value, param_type, function_param_iterator_c::direction_in) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
685 |
found_first_extensible_parameter = true; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
686 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
687 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
688 |
if (fp_iterator.is_extensible_param()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
689 |
/* since we are handling an extensible parameter, we must add the index to the |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
690 |
* parameter name so we can go looking for the value passed to the correct |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
691 |
* extended parameter (e.g. IN1, IN2, IN3, IN4, ...) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
692 |
*/ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
693 |
char *tmp = (char *)malloc(32); /* enough space for a call with 10^31 (larger than 2^64) input parameters! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
694 |
int res = snprintf(tmp, 32, "%d", fp_iterator.extensible_param_index()); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
695 |
if ((res >= 32) || (res < 0)) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
696 |
param_name = new identifier_c(strdup2(param_name->value, tmp)); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
697 |
if (param_name->value == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
698 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
699 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
700 |
symbol_c *param_type = fp_iterator.param_type(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
701 |
if (param_type == NULL) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
702 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
703 |
function_param_iterator_c::param_direction_t param_direction = fp_iterator.param_direction(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
704 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
705 |
symbol_c *param_value = NULL; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
706 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
707 |
/* Get the value from a foo(<param_name> = <param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
708 |
if (param_value == NULL) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
709 |
param_value = function_call_param_iterator.search_f(param_name); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
710 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
711 |
/* Get the value from a foo(<param_value>) style call */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
712 |
if ((param_value == NULL) && !fp_iterator.is_en_eno_param_implicit()) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
713 |
param_value = function_call_param_iterator.next_nf(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
714 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
715 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
716 |
/* if no more parameter values in function call, and the current parameter |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
717 |
* of the function declaration is an extensible parameter, we |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
718 |
* have reached the end, and should simply jump out of the for loop. |
219 | 719 |
*/ |
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
720 |
if ((param_value == NULL) && (fp_iterator.is_extensible_param())) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
721 |
break; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
722 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
723 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
724 |
if ((param_value == NULL) && (param_direction == function_param_iterator_c::direction_in)) { |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
725 |
/* No value given for parameter, so we must use the default... */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
726 |
/* First check whether default value specified in function declaration...*/ |
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diff
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|
727 |
param_value = fp_iterator.default_value(); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
728 |
} |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
729 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
730 |
ADD_PARAM_LIST(param_name, param_value, param_type, param_direction) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
731 |
} /* for(...) */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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changeset
|
732 |
// symbol->parameter_assignment->accept(*this); |
235 | 733 |
|
734 |
if (function_call_param_iterator.next_nf() != NULL) ERROR; |
|
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
735 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
736 |
bool has_output_params = false; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
737 |
|
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
738 |
PARAM_LIST_ITERATOR() { |
235 | 739 |
if ((PARAM_DIRECTION == function_param_iterator_c::direction_out || |
740 |
PARAM_DIRECTION == function_param_iterator_c::direction_inout) && |
|
741 |
PARAM_VALUE != NULL) { |
|
742 |
has_output_params = true; |
|
219 | 743 |
} |
235 | 744 |
} |
745 |
||
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
746 |
/* Check whether we are calling an overloaded function! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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diff
changeset
|
747 |
/* (fdecl_mutiplicity==2) => calling overloaded function */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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changeset
|
748 |
int fdecl_mutiplicity = function_symtable.multiplicity(symbol->function_name); |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
336
diff
changeset
|
749 |
if (fdecl_mutiplicity == 0) ERROR; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
750 |
if (fdecl_mutiplicity == 1) |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
751 |
/* function being called is NOT overloaded! */ |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
752 |
f_decl = NULL; |
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
753 |
|
235 | 754 |
if (has_output_params) |
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
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parents:
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diff
changeset
|
755 |
generate_inline(function_name, function_type_prefix, function_type_suffix, param_list, f_decl); |
235 | 756 |
|
757 |
CLEAR_PARAM_LIST() |
|
758 |
||
350
2c3c4dc34979
Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents:
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diff
changeset
|
759 |
return NULL; |
219 | 760 |
} |
761 |
||
234
e4d31cd0e6d8
Using function_call_iterator in generate_c_inlinefcall instead of creating a new visitor
laurent
parents:
233
diff
changeset
|
762 |
}; /* generate_c_inlinefcall_c */ |
e4d31cd0e6d8
Using function_call_iterator in generate_c_inlinefcall instead of creating a new visitor
laurent
parents:
233
diff
changeset
|
763 |
|
e4d31cd0e6d8
Using function_call_iterator in generate_c_inlinefcall instead of creating a new visitor
laurent
parents:
233
diff
changeset
|
764 |