stage3/print_datatypes_error.cc
changeset 439 cf7d6862033d
parent 438 744b125d911e
child 441 e8de43eefcc5
equal deleted inserted replaced
438:744b125d911e 439:cf7d6862033d
  1138 /* B 3.2.2 Subprogram Control Statements */
  1138 /* B 3.2.2 Subprogram Control Statements */
  1139 /*****************************************/
  1139 /*****************************************/
  1140 /* fb_name '(' [param_assignment_list] ')' */
  1140 /* fb_name '(' [param_assignment_list] ')' */
  1141 /*    formal_param_list -> may be NULL ! */
  1141 /*    formal_param_list -> may be NULL ! */
  1142 /* nonformal_param_list -> may be NULL ! */
  1142 /* nonformal_param_list -> may be NULL ! */
  1143 /* NOTES:
  1143 /* NOTE: The parameter 'called_fb_declaration'is used to pass data between stage 3 and stage4 (although currently it is not used in stage 4 */
  1144  *    The parameter 'called_fb_declaration'... 
       
  1145  *       ...is used to pass data between two passes of stage 3.
       
  1146  *       (actually set in fill_candidate_datatypes_c, and used in narrow_candidate_datatypes_c and print_datatypes_error_c).
       
  1147  *       This allows fill_candidate_datatypes_c to figure out whether it is a valid FB call,
       
  1148  *       and let the other classes handle it aproproately.
       
  1149  *       It could also be used in stage 4, if required.
       
  1150  */
       
  1151 // SYM_REF3(fb_invocation_c, fb_name, formal_param_list, nonformal_param_list, symbol_c *called_fb_declaration;)
  1144 // SYM_REF3(fb_invocation_c, fb_name, formal_param_list, nonformal_param_list, symbol_c *called_fb_declaration;)
  1152 void *print_datatypes_error_c::visit(fb_invocation_c *symbol) {
  1145 void *print_datatypes_error_c::visit(fb_invocation_c *symbol) {
  1153 	symbol_c *param_value, *param_name;
  1146 	symbol_c *param_value, *param_name;
  1154 	function_call_param_iterator_c fcp_iterator(symbol);
  1147 	function_call_param_iterator_c fcp_iterator(symbol);
  1155 	bool function_invocation_error = false;
  1148 	bool function_invocation_error = false;