author | Mario de Sousa <msousa@fe.up.pt> |
Thu, 08 Mar 2012 18:57:55 +0000 | |
changeset 466 | d97a29b7fa8b |
parent 312 | 29add821207d |
child 547 | dab341e80664 |
permissions | -rwxr-xr-x |
70 | 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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#include <string.h> |
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typedef struct |
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{ |
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symbol_c *param_name; |
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symbol_c *param_value; |
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symbol_c *param_type; |
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function_param_iterator_c::param_direction_t param_direction; |
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} FUNCTION_PARAM; |
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#define DECLARE_PARAM_LIST()\ |
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std::list<FUNCTION_PARAM*> param_list;\ |
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std::list<FUNCTION_PARAM*>::iterator pt;\ |
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FUNCTION_PARAM *param; |
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#define ADD_PARAM_LIST(name, value, type, direction)\ |
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param = new FUNCTION_PARAM;\ |
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param->param_name = name;\ |
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param->param_value = value;\ |
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param->param_type = type;\ |
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param->param_direction = direction;\ |
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param_list.push_back(param); |
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#define PARAM_LIST_ITERATOR() for(pt = param_list.begin(); pt != param_list.end(); pt++) |
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#define PARAM_NAME (*pt)->param_name |
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#define PARAM_VALUE (*pt)->param_value |
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#define PARAM_TYPE (*pt)->param_type |
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#define PARAM_DIRECTION (*pt)->param_direction |
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#define CLEAR_PARAM_LIST()\ |
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PARAM_LIST_ITERATOR()\ |
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delete *pt;\ |
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param_list.clear(); |
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class generate_c_base_c: public iterator_visitor_c { |
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protected: |
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stage4out_c &s4o; |
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private: |
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/* Unlike programs that are mapped onto C++ classes, Function Blocks are mapped onto a data structure type |
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* and a separate function containing the code. This function is passed a pointer to an instance of the data |
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* structure. This means that the code inside the functions must insert a pointer to the data structure whenever |
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* it wishes to access a Function Block variable. |
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* The variable_prefix_ variable will contain the correct string which needs to be prefixed to all variable accesses. |
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* This string is set with the set_variable_prefix() member function. |
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*/ |
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const char *variable_prefix_; |
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public: |
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generate_c_base_c(stage4out_c *s4o_ptr): s4o(*s4o_ptr) { |
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variable_prefix_ = NULL; |
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} |
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~generate_c_base_c(void) {} |
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void set_variable_prefix(const char *variable_prefix) {variable_prefix_ = variable_prefix;} |
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const char *get_variable_prefix(void) {return variable_prefix_;} |
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bool is_variable_prefix_null(void) {return variable_prefix_ == NULL;} |
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void print_variable_prefix(void) { |
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if (variable_prefix_ != NULL) |
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s4o.print(variable_prefix_); |
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} |
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void *print_token(token_c *token, int offset = 0) { |
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return s4o.printupper((token->value)+offset); |
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} |
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void *print_literal(symbol_c *type, symbol_c *value) { |
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s4o.print("__"); |
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type->accept(*this); |
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s4o.print("_LITERAL("); |
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value->accept(*this); |
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s4o.print(")"); |
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return NULL; |
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} |
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void *print_striped_token(token_c *token, int offset = 0) { |
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std::string str = ""; |
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bool leading_zero = true; |
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for (unsigned int i = offset; i < strlen(token->value); i++) { |
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if (leading_zero && |
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(token->value[i] != '0' || |
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i == strlen(token->value) - 1 || |
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token->value[i + 1] == '.' |
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)) |
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leading_zero = false; |
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if (!leading_zero && token->value[i] != '_') |
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str += token->value[i]; |
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} |
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return s4o.printupper(str); |
120 |
} |
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void *print_striped_binary_token(token_c *token, unsigned int offset = 0) { |
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/* convert the binary value to hexadecimal format... */ |
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unsigned char value, bit_mult; |
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unsigned int i; |
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int total_bits; |
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char str[2] = {'A', '\0'}; /* since the s4o object is not prepared to print out one character at a time... */ |
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s4o.print("0x"); |
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total_bits = 0; |
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for (i = offset; i < strlen(token->value); i++) |
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if (token->value[i] != '_') |
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total_bits++; |
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value = 0; |
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bit_mult = (unsigned char)1 << (((total_bits+3)%4)+1); |
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for (i = offset; i < strlen(token->value); i++) { |
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if (token->value[i] != '_') { |
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bit_mult /= 2; |
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value += bit_mult * ((token->value[i] == '0')? 0:1); |
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if (bit_mult == 1) { |
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str[0] = (value <= 9)? (char)'0' + value : (char)'A' + value - 10; |
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s4o.print(str); |
145 |
bit_mult = 0x10; |
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value = 0; |
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} |
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} |
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} |
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151 |
return NULL; |
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152 |
} |
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void *print_list(list_c *list, |
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155 |
std::string pre_elem_str = "", |
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156 |
std::string inter_elem_str = "", |
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std::string post_elem_str = "", |
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visitor_c *visitor = NULL) { |
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159 |
if (visitor == NULL) visitor = this; |
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160 |
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161 |
if (list->n > 0) { |
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//std::cout << "generate_c_base_c::print_list(n = " << list->n << ") 000\n"; |
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s4o.print(pre_elem_str); |
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list->elements[0]->accept(*visitor); |
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} |
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167 |
for(int i = 1; i < list->n; i++) { |
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//std::cout << "generate_c_base_c::print_list " << i << "\n"; |
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s4o.print(inter_elem_str); |
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list->elements[i]->accept(*visitor); |
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} |
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173 |
if (list->n > 0) |
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s4o.print(post_elem_str); |
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return NULL; |
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} |
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178 |
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void *print_binary_expression(symbol_c *l_exp, |
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181 |
symbol_c *r_exp, |
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182 |
const char *operation) { |
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183 |
s4o.print("("); |
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184 |
l_exp->accept(*this); |
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185 |
s4o.print(operation); |
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186 |
r_exp->accept(*this); |
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s4o.print(")"); |
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return NULL; |
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189 |
} |
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191 |
void *print_unary_expression(symbol_c *exp, |
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192 |
const char *operation) { |
|
193 |
s4o.print(operation); |
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194 |
s4o.print("("); |
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195 |
exp->accept(*this); |
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196 |
s4o.print(")"); |
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return NULL; |
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198 |
} |
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199 |
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200 |
void *print_binary_function(const char *function, |
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201 |
symbol_c *l_exp, |
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202 |
symbol_c *r_exp) { |
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s4o.print(function); |
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s4o.print("("); |
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205 |
l_exp->accept(*this); |
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206 |
s4o.print(", "); |
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207 |
r_exp->accept(*this); |
|
208 |
s4o.print(")"); |
|
209 |
return NULL; |
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210 |
} |
|
211 |
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212 |
void *print_compare_function(const char *function, |
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213 |
symbol_c *compare_type, |
|
214 |
symbol_c *l_exp, |
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215 |
symbol_c *r_exp) { |
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216 |
s4o.print(function); |
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217 |
compare_type->accept(*this); |
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s4o.print("(__BOOL_LITERAL(TRUE), NULL, 2, "); |
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l_exp->accept(*this); |
220 |
s4o.print(", "); |
|
221 |
r_exp->accept(*this); |
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222 |
s4o.print(")"); |
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223 |
return NULL; |
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224 |
} |
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225 |
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void *print_check_function(symbol_c *type, |
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symbol_c *value, |
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symbol_c *fb_name = NULL, |
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bool temp = false) { |
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search_base_type_c search_base_type; |
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bool is_subrange = search_base_type.type_is_subrange(type); |
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if (is_subrange) { |
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s4o.print("__CHECK_"); |
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type->accept(*this); |
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s4o.print("("); |
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} |
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if (fb_name != NULL) { |
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s4o.print(GET_VAR); |
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s4o.print("("); |
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print_variable_prefix(); |
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fb_name->accept(*this); |
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s4o.print("."); |
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value->accept(*this); |
244 |
s4o.print(")"); |
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} |
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else { |
247 |
if (temp) |
|
248 |
s4o.print(TEMP_VAR); |
|
249 |
value->accept(*this); |
|
250 |
} |
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if (is_subrange) |
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s4o.print(")"); |
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return NULL; |
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} |
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/********************/ |
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/* 2.1.6 - Pragmas */ |
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/********************/ |
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starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents:
258
diff
changeset
|
259 |
void *visit(enable_code_generation_pragma_c * symbol) {s4o.enable_output(); return NULL;} |
0a1204bcc9af
starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents:
258
diff
changeset
|
260 |
void *visit(disable_code_generation_pragma_c * symbol) {s4o.disable_output(); return NULL;} |
0a1204bcc9af
starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents:
258
diff
changeset
|
261 |
|
70 | 262 |
/* Do not use print_token() as it will change everything into uppercase */ |
263 |
void *visit(pragma_c *symbol) {return s4o.print(symbol->value);} |
|
264 |
||
265 |
||
266 |
/***************************/ |
|
267 |
/* B 0 - Programming Model */ |
|
268 |
/***************************/ |
|
269 |
/* leave for derived classes... */ |
|
270 |
||
271 |
||
272 |
||
273 |
/*************************/ |
|
274 |
/* B.1 - Common elements */ |
|
275 |
/*************************/ |
|
276 |
/*******************************************/ |
|
277 |
/* B 1.1 - Letters, digits and identifiers */ |
|
278 |
/*******************************************/ |
|
279 |
void *visit(identifier_c *symbol) {return print_token(symbol);} |
|
280 |
||
281 |
/*********************/ |
|
282 |
/* B 1.2 - Constants */ |
|
283 |
/*********************/ |
|
284 |
/* originally empty... */ |
|
285 |
||
286 |
/******************************/ |
|
287 |
/* B 1.2.1 - Numeric Literals */ |
|
288 |
/******************************/ |
|
289 |
void *visit(real_c *symbol) {return print_striped_token(symbol);} |
|
290 |
void *visit(integer_c *symbol) {return print_striped_token(symbol);} |
|
291 |
void *visit(binary_integer_c *symbol) {return print_striped_binary_token(symbol, 2);} |
|
292 |
void *visit(octal_integer_c *symbol) {s4o.print("0"); return print_striped_token(symbol, 2);} |
|
293 |
void *visit(hex_integer_c *symbol) {s4o.print("0x"); return print_striped_token(symbol, 3);} |
|
294 |
||
257 | 295 |
void *visit(neg_real_c *symbol) { |
296 |
s4o.print("-"); |
|
297 |
symbol->exp->accept(*this); |
|
298 |
return NULL; |
|
299 |
} |
|
300 |
||
301 |
void *visit(neg_integer_c *symbol) { |
|
302 |
s4o.print("-"); |
|
303 |
symbol->exp->accept(*this); |
|
304 |
return NULL; |
|
305 |
} |
|
306 |
||
70 | 307 |
void *visit(integer_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
308 |
void *visit(real_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
309 |
void *visit(bit_string_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
257 | 310 |
void *visit(boolean_literal_c *symbol) { |
311 |
if (NULL != symbol->type) |
|
312 |
return print_literal(symbol->type, symbol->value); |
|
313 |
else { |
|
314 |
bool_type_name_c bool_type; |
|
315 |
return print_literal(&bool_type, symbol->value); |
|
316 |
} |
|
317 |
} |
|
70 | 318 |
|
319 |
/* helper class for boolean_literal_c */ |
|
320 |
void *visit(boolean_true_c *symbol) {s4o.print("TRUE"); return NULL;} |
|
321 |
void *visit(boolean_false_c *symbol) {s4o.print("FALSE"); return NULL;} |
|
322 |
||
98 | 323 |
void *visit(neg_expression_c *symbol) { |
324 |
s4o.print("-"); |
|
325 |
symbol->exp->accept(*this); |
|
326 |
return NULL; |
|
327 |
} |
|
328 |
||
70 | 329 |
/*******************************/ |
330 |
/* B.1.2.2 Character Strings */ |
|
331 |
/*******************************/ |
|
332 |
void *visit(double_byte_character_string_c *symbol) { |
|
333 |
// TO DO ... |
|
334 |
ERROR; |
|
335 |
return print_token(symbol); |
|
336 |
} |
|
337 |
||
338 |
void *visit(single_byte_character_string_c *symbol) { |
|
339 |
std::string str = ""; |
|
340 |
unsigned int count = 0; |
|
341 |
str += '"'; |
|
342 |
/* we ignore the first and last bytes, they will be the character ' */ |
|
343 |
for (unsigned int i = 1; i < strlen(symbol->value) - 1; i++) { |
|
344 |
char c = symbol->value[i]; |
|
345 |
if ((c == '\\') || (c == '"')) |
|
346 |
{str += '\\'; str += c; count ++; continue;} |
|
347 |
if (c != '$') |
|
348 |
{str += c; count++; continue;} |
|
349 |
/* this should be safe, since the code has passed the syntax parser!! */ |
|
350 |
c = symbol->value[++i]; |
|
351 |
switch (c) { |
|
352 |
case '$': |
|
353 |
case '\'': |
|
354 |
{str += c; count++; continue;} |
|
355 |
case 'L': |
|
356 |
case 'l': |
|
357 |
{str += "\x0A"; /* LF */; count++; continue;} |
|
358 |
case 'N': |
|
359 |
case 'n': |
|
360 |
{str += "\\x0A"; /* NL */; count++; continue;} |
|
361 |
case 'P': |
|
362 |
case 'p': |
|
363 |
{str += "\\f"; /* FF */; count++; continue;} |
|
364 |
case 'R': |
|
365 |
case 'r': |
|
366 |
{str += "\\r"; /* CR */; count++; continue;} |
|
367 |
case 'T': |
|
368 |
case 't': |
|
369 |
{str += "\\t"; /* tab */; count++; continue;} |
|
370 |
default: { |
|
371 |
if (isxdigit(c)) { |
|
372 |
/* this should be safe, since the code has passed the syntax parser!! */ |
|
373 |
char c2 = symbol->value[++i]; |
|
374 |
if (isxdigit(c2)) { |
|
375 |
str += '\\'; str += 'x'; str += c; str += c2; |
|
376 |
count++; continue; |
|
377 |
} |
|
378 |
} |
|
379 |
} |
|
380 |
/* otherwise we have an invalid string!! */ |
|
381 |
/* This should not have got through the syntax parser! */ |
|
382 |
ERROR; |
|
383 |
} /* switch() */ |
|
384 |
} /* for() */ |
|
385 |
||
386 |
str += '"'; |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
387 |
s4o.print("__STRING_LITERAL("); |
70 | 388 |
s4o.print_integer(count); |
389 |
s4o.print(","); |
|
390 |
s4o.print(str); |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
391 |
s4o.print(")"); |
70 | 392 |
return NULL; |
393 |
} |
|
394 |
||
395 |
||
396 |
/***************************/ |
|
397 |
/* B 1.2.3 - Time Literals */ |
|
398 |
/***************************/ |
|
399 |
||
400 |
/************************/ |
|
401 |
/* B 1.2.3.1 - Duration */ |
|
402 |
/************************/ |
|
403 |
/* The following output is actually the parameters to the constructor of the TIME class! */ |
|
404 |
||
405 |
/* SYM_REF0(neg_time_c) */ |
|
406 |
void *visit(neg_time_c *symbol) {s4o.print("-1"); /* negative time value */; return NULL;} |
|
407 |
||
408 |
||
409 |
/* SYM_REF2(duration_c, neg, interval) */ |
|
410 |
void *visit(duration_c *symbol) { |
|
411 |
TRACE("duration_c"); |
|
412 |
s4o.print("__time_to_timespec("); |
|
413 |
if (NULL == symbol->neg) |
|
414 |
s4o.print("1"); /* positive time value */ |
|
415 |
else |
|
416 |
symbol->neg->accept(*this); /* this will print '-1' :-) */ |
|
417 |
||
418 |
s4o.print(", "); |
|
419 |
||
420 |
symbol->interval->accept(*this); |
|
421 |
if (typeid(*symbol->interval) == typeid(hours_c)) {s4o.print(", 0");} |
|
422 |
if (typeid(*symbol->interval) == typeid(minutes_c)) {s4o.print(", 0, 0");} |
|
423 |
if (typeid(*symbol->interval) == typeid(seconds_c)) {s4o.print(", 0, 0, 0");} |
|
424 |
if (typeid(*symbol->interval) == typeid(milliseconds_c)) {s4o.print(", 0, 0, 0, 0");} |
|
425 |
s4o.print(")"); |
|
426 |
return NULL; |
|
427 |
} |
|
428 |
||
429 |
||
430 |
/* SYM_TOKEN(fixed_point_c) */ |
|
312
29add821207d
Fix bug when generating integer with leading zero (octal value for C compiler)
laurent
parents:
308
diff
changeset
|
431 |
void *visit(fixed_point_c *symbol) {return print_striped_token(symbol);} |
70 | 432 |
|
433 |
||
434 |
/* SYM_REF2(days_c, days, hours) */ |
|
435 |
void *visit(days_c *symbol) { |
|
436 |
TRACE("days_c"); |
|
437 |
if (NULL == symbol->hours) |
|
438 |
s4o.print("0, 0, 0, 0"); /* milliseconds, seconds, minutes, hours */ |
|
439 |
else |
|
440 |
symbol->hours->accept(*this); |
|
441 |
||
442 |
s4o.print(", "); |
|
443 |
||
444 |
symbol->days->accept(*this); |
|
445 |
return NULL; |
|
446 |
} |
|
447 |
||
448 |
||
449 |
/* SYM_REF2(hours_c, hours, minutes) */ |
|
450 |
void *visit(hours_c *symbol) { |
|
451 |
TRACE("hours_c"); |
|
452 |
if (NULL == symbol->minutes) |
|
453 |
s4o.print("0, 0, 0"); /* milliseconds, seconds, minutes */ |
|
454 |
else |
|
455 |
symbol->minutes->accept(*this); |
|
456 |
||
457 |
s4o.print(", "); |
|
458 |
||
459 |
symbol->hours->accept(*this); |
|
460 |
return NULL; |
|
461 |
} |
|
462 |
||
463 |
||
464 |
/* SYM_REF2(minutes_c, minutes, seconds) */ |
|
465 |
void *visit(minutes_c *symbol) { |
|
466 |
TRACE("minutes_c"); |
|
467 |
if (NULL == symbol->seconds) |
|
468 |
s4o.print("0, 0"); /* milliseconds, seconds */ |
|
469 |
else |
|
470 |
symbol->seconds->accept(*this); |
|
471 |
||
472 |
s4o.print(", "); |
|
473 |
||
474 |
symbol->minutes->accept(*this); |
|
475 |
return NULL; |
|
476 |
} |
|
477 |
||
478 |
||
479 |
/* SYM_REF2(seconds_c, seconds, milliseconds) */ |
|
480 |
void *visit(seconds_c *symbol) { |
|
481 |
TRACE("seconds_c"); |
|
482 |
if (NULL == symbol->milliseconds) |
|
483 |
s4o.print("0"); /* milliseconds */ |
|
484 |
else |
|
485 |
symbol->milliseconds->accept(*this); |
|
486 |
||
487 |
s4o.print(", "); |
|
488 |
||
489 |
symbol->seconds->accept(*this); |
|
490 |
return NULL; |
|
491 |
} |
|
492 |
||
493 |
||
494 |
/* SYM_REF2(milliseconds_c, milliseconds, unused) */ |
|
495 |
void *visit(milliseconds_c *symbol) { |
|
496 |
TRACE("milliseconds_c"); |
|
497 |
symbol->milliseconds->accept(*this); |
|
498 |
return NULL; |
|
499 |
} |
|
500 |
||
501 |
/************************************/ |
|
502 |
/* B 1.2.3.2 - Time of day and Date */ |
|
503 |
/************************************/ |
|
504 |
||
505 |
/* SYM_REF2(time_of_day_c, daytime, unused) */ |
|
506 |
void *visit(time_of_day_c *symbol) { |
|
507 |
TRACE("time_of_day_c"); |
|
508 |
s4o.print("__tod_to_timespec("); |
|
509 |
symbol->daytime->accept(*this); |
|
510 |
s4o.print(")"); |
|
511 |
return NULL; |
|
512 |
} |
|
513 |
||
514 |
||
515 |
/* SYM_REF4(daytime_c, day_hour, day_minute, day_second, unused) */ |
|
516 |
void *visit(daytime_c *symbol) { |
|
517 |
TRACE("daytime_c"); |
|
518 |
symbol->day_second->accept(*this); |
|
519 |
s4o.print(", "); |
|
520 |
symbol->day_minute->accept(*this); |
|
521 |
s4o.print(", "); |
|
522 |
symbol->day_hour->accept(*this); |
|
523 |
return NULL; |
|
524 |
} |
|
525 |
||
526 |
||
527 |
/* SYM_REF2(date_c, date_literal, unused) */ |
|
528 |
void *visit(date_c *symbol) { |
|
529 |
TRACE("date_c"); |
|
530 |
s4o.print("__date_to_timespec("); |
|
531 |
symbol->date_literal->accept(*this); |
|
532 |
s4o.print(")"); |
|
533 |
return NULL; |
|
534 |
} |
|
535 |
||
536 |
||
537 |
/* SYM_REF4(date_literal_c, year, month, day, unused) */ |
|
538 |
void *visit(date_literal_c *symbol) { |
|
539 |
TRACE("date_literal_c"); |
|
540 |
symbol->day->accept(*this); |
|
541 |
s4o.print(", "); |
|
542 |
symbol->month->accept(*this); |
|
543 |
s4o.print(", "); |
|
544 |
symbol->year->accept(*this); |
|
545 |
return NULL; |
|
546 |
} |
|
547 |
||
548 |
||
549 |
/* SYM_REF2(date_and_time_c, date_literal, daytime) */ |
|
550 |
void *visit(date_and_time_c *symbol) { |
|
551 |
TRACE("date_and_time_c"); |
|
552 |
s4o.print("__dt_to_timespec("); |
|
553 |
symbol->daytime->accept(*this); |
|
554 |
s4o.print(", "); |
|
555 |
symbol->date_literal->accept(*this); |
|
556 |
s4o.print(")"); |
|
557 |
return NULL; |
|
558 |
} |
|
559 |
||
560 |
||
561 |
/**********************/ |
|
562 |
/* B.1.3 - Data types */ |
|
563 |
/**********************/ |
|
564 |
/***********************************/ |
|
565 |
/* B 1.3.1 - Elementary Data Types */ |
|
566 |
/***********************************/ |
|
257 | 567 |
void *visit(time_type_name_c *symbol) {s4o.print("TIME"); return NULL;} |
568 |
void *visit(bool_type_name_c *symbol) {s4o.print("BOOL"); return NULL;} |
|
569 |
void *visit(sint_type_name_c *symbol) {s4o.print("SINT"); return NULL;} |
|
570 |
void *visit(int_type_name_c *symbol) {s4o.print("INT"); return NULL;} |
|
571 |
void *visit(dint_type_name_c *symbol) {s4o.print("DINT"); return NULL;} |
|
572 |
void *visit(lint_type_name_c *symbol) {s4o.print("LINT"); return NULL;} |
|
573 |
void *visit(usint_type_name_c *symbol) {s4o.print("USINT"); return NULL;} |
|
574 |
void *visit(uint_type_name_c *symbol) {s4o.print("UINT"); return NULL;} |
|
575 |
void *visit(udint_type_name_c *symbol) {s4o.print("UDINT"); return NULL;} |
|
576 |
void *visit(ulint_type_name_c *symbol) {s4o.print("ULINT"); return NULL;} |
|
577 |
void *visit(real_type_name_c *symbol) {s4o.print("REAL"); return NULL;} |
|
578 |
void *visit(lreal_type_name_c *symbol) {s4o.print("LREAL"); return NULL;} |
|
579 |
void *visit(date_type_name_c *symbol) {s4o.print("DATE"); return NULL;} |
|
580 |
void *visit(tod_type_name_c *symbol) {s4o.print("TOD"); return NULL;} |
|
581 |
void *visit(dt_type_name_c *symbol) {s4o.print("DT"); return NULL;} |
|
582 |
void *visit(byte_type_name_c *symbol) {s4o.print("BYTE"); return NULL;} |
|
583 |
void *visit(word_type_name_c *symbol) {s4o.print("WORD"); return NULL;} |
|
584 |
void *visit(lword_type_name_c *symbol) {s4o.print("LWORD"); return NULL;} |
|
585 |
void *visit(dword_type_name_c *symbol) {s4o.print("DWORD"); return NULL;} |
|
586 |
void *visit(string_type_name_c *symbol) {s4o.print("STRING"); return NULL;} |
|
587 |
void *visit(wstring_type_name_c *symbol) {s4o.print("WSTRING"); return NULL;} |
|
588 |
||
589 |
void *visit(safetime_type_name_c *symbol) {s4o.print("TIME"); return NULL;} |
|
590 |
void *visit(safebool_type_name_c *symbol) {s4o.print("BOOL"); return NULL;} |
|
591 |
void *visit(safesint_type_name_c *symbol) {s4o.print("SINT"); return NULL;} |
|
592 |
void *visit(safeint_type_name_c *symbol) {s4o.print("INT"); return NULL;} |
|
593 |
void *visit(safedint_type_name_c *symbol) {s4o.print("DINT"); return NULL;} |
|
594 |
void *visit(safelint_type_name_c *symbol) {s4o.print("LINT"); return NULL;} |
|
595 |
void *visit(safeusint_type_name_c *symbol) {s4o.print("USINT"); return NULL;} |
|
596 |
void *visit(safeuint_type_name_c *symbol) {s4o.print("UINT"); return NULL;} |
|
597 |
void *visit(safeudint_type_name_c *symbol) {s4o.print("UDINT"); return NULL;} |
|
598 |
void *visit(safeulint_type_name_c *symbol) {s4o.print("ULINT"); return NULL;} |
|
599 |
void *visit(safereal_type_name_c *symbol) {s4o.print("REAL"); return NULL;} |
|
600 |
void *visit(safelreal_type_name_c *symbol) {s4o.print("LREAL"); return NULL;} |
|
601 |
void *visit(safedate_type_name_c *symbol) {s4o.print("DATE"); return NULL;} |
|
602 |
void *visit(safetod_type_name_c *symbol) {s4o.print("TOD"); return NULL;} |
|
603 |
void *visit(safedt_type_name_c *symbol) {s4o.print("DT"); return NULL;} |
|
604 |
void *visit(safebyte_type_name_c *symbol) {s4o.print("BYTE"); return NULL;} |
|
605 |
void *visit(safeword_type_name_c *symbol) {s4o.print("WORD"); return NULL;} |
|
606 |
void *visit(safelword_type_name_c *symbol) {s4o.print("LWORD"); return NULL;} |
|
607 |
void *visit(safedword_type_name_c *symbol) {s4o.print("DWORD"); return NULL;} |
|
608 |
void *visit(safestring_type_name_c *symbol) {s4o.print("STRING"); return NULL;} |
|
609 |
void *visit(safewstring_type_name_c *symbol) {s4o.print("WSTRING"); return NULL;} |
|
70 | 610 |
|
611 |
/********************************/ |
|
612 |
/* B.1.3.2 - Generic data types */ |
|
613 |
/********************************/ |
|
614 |
/* originally empty... */ |
|
615 |
||
616 |
/********************************/ |
|
617 |
/* B 1.3.3 - Derived data types */ |
|
618 |
/********************************/ |
|
619 |
/* leave for derived classes... */ |
|
620 |
||
621 |
/*********************/ |
|
622 |
/* B 1.4 - Variables */ |
|
623 |
/*********************/ |
|
624 |
void *visit(symbolic_variable_c *symbol) { |
|
625 |
TRACE("symbolic_variable_c"); |
|
626 |
this->print_variable_prefix(); |
|
627 |
symbol->var_name->accept(*this); |
|
628 |
return NULL; |
|
629 |
} |
|
630 |
||
631 |
/********************************************/ |
|
632 |
/* B.1.4.1 Directly Represented Variables */ |
|
633 |
/********************************************/ |
|
634 |
void *visit(direct_variable_c *symbol) { |
|
635 |
TRACE("direct_variable_c"); |
|
636 |
/* Do not use print_token() as it will change everything into uppercase */ |
|
637 |
return s4o.printlocation(symbol->value); |
|
638 |
} |
|
639 |
||
640 |
||
641 |
||
642 |
/*************************************/ |
|
643 |
/* B.1.4.2 Multi-element Variables */ |
|
644 |
/*************************************/ |
|
645 |
#if 0 |
|
646 |
/* subscripted_variable '[' subscript_list ']' */ |
|
647 |
SYM_REF2(array_variable_c, subscripted_variable, subscript_list) |
|
648 |
||
649 |
#endif |
|
650 |
||
651 |
/* record_variable '.' field_selector */ |
|
652 |
/* WARNING: input and/or output variables of function blocks |
|
653 |
* may be accessed as fields of a structured variable! |
|
654 |
* Code handling a structured_variable_c must take |
|
655 |
* this into account! |
|
656 |
*/ |
|
657 |
// SYM_REF2(structured_variable_c, record_variable, field_selector) |
|
658 |
void *visit(structured_variable_c *symbol) { |
|
659 |
TRACE("structured_variable_c"); |
|
660 |
||
661 |
symbol->record_variable->accept(*this); |
|
662 |
s4o.print("."); |
|
663 |
symbol->field_selector->accept(*this); |
|
664 |
return NULL; |
|
665 |
} |
|
666 |
||
667 |
/******************************************/ |
|
668 |
/* B 1.4.3 - Declaration & Initialisation */ |
|
669 |
/******************************************/ |
|
670 |
/* leave for derived classes... */ |
|
671 |
||
672 |
/**************************************/ |
|
673 |
/* B.1.5 - Program organization units */ |
|
674 |
/**************************************/ |
|
675 |
/***********************/ |
|
676 |
/* B 1.5.1 - Functions */ |
|
677 |
/***********************/ |
|
678 |
/* leave for derived classes... */ |
|
679 |
||
680 |
/*****************************/ |
|
681 |
/* B 1.5.2 - Function Blocks */ |
|
682 |
/*****************************/ |
|
683 |
/* leave for derived classes... */ |
|
684 |
||
685 |
/**********************/ |
|
686 |
/* B 1.5.3 - Programs */ |
|
687 |
/**********************/ |
|
688 |
/* leave for derived classes... */ |
|
689 |
||
690 |
/*********************************************/ |
|
691 |
/* B.1.6 Sequential function chart elements */ |
|
692 |
/*********************************************/ |
|
693 |
||
694 |
/********************************/ |
|
695 |
/* B 1.7 Configuration elements */ |
|
696 |
/********************************/ |
|
697 |
/* leave for derived classes... */ |
|
698 |
||
699 |
/****************************************/ |
|
700 |
/* B.2 - Language IL (Instruction List) */ |
|
701 |
/****************************************/ |
|
702 |
/***********************************/ |
|
703 |
/* B 2.1 Instructions and Operands */ |
|
704 |
/***********************************/ |
|
705 |
/* leave for derived classes... */ |
|
706 |
||
707 |
/*******************/ |
|
708 |
/* B 2.2 Operators */ |
|
709 |
/*******************/ |
|
710 |
/* leave for derived classes... */ |
|
711 |
||
712 |
||
713 |
/***************************************/ |
|
714 |
/* B.3 - Language ST (Structured Text) */ |
|
715 |
/***************************************/ |
|
716 |
/***********************/ |
|
717 |
/* B 3.1 - Expressions */ |
|
718 |
/***********************/ |
|
719 |
/* leave for derived classes... */ |
|
720 |
||
721 |
/********************/ |
|
722 |
/* B 3.2 Statements */ |
|
723 |
/********************/ |
|
724 |
/* leave for derived classes... */ |
|
725 |
||
726 |
/*********************************/ |
|
727 |
/* B 3.2.1 Assignment Statements */ |
|
728 |
/*********************************/ |
|
729 |
/* leave for derived classes... */ |
|
730 |
||
731 |
/*****************************************/ |
|
732 |
/* B 3.2.2 Subprogram Control Statements */ |
|
733 |
/*****************************************/ |
|
734 |
/* leave for derived classes... */ |
|
735 |
||
736 |
/********************************/ |
|
737 |
/* B 3.2.3 Selection Statements */ |
|
738 |
/********************************/ |
|
739 |
/* leave for derived classes... */ |
|
740 |
||
741 |
/********************************/ |
|
742 |
/* B 3.2.4 Iteration Statements */ |
|
743 |
/********************************/ |
|
744 |
/* leave for derived classes... */ |
|
745 |
||
177
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
746 |
|
70 | 747 |
}; /* class generate_c_basic_c */ |
748 |
||
749 |
||
750 |
||
751 |
||
752 |
||
753 |
||
754 |
||
755 |
||
756 |
||
757 |
||
758 |
||
759 |
||
760 |
||
761 |