lbessard@70: /*
Edouard@279: * matiec - a compiler for the programming languages defined in IEC 61131-3
Edouard@279: *
Edouard@279: * Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
Edouard@279: * Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
Edouard@279: *
Edouard@279: * This program is free software: you can redistribute it and/or modify
Edouard@279: * it under the terms of the GNU General Public License as published by
Edouard@279: * the Free Software Foundation, either version 3 of the License, or
Edouard@279: * (at your option) any later version.
Edouard@279: *
Edouard@279: * This program is distributed in the hope that it will be useful,
Edouard@279: * but WITHOUT ANY WARRANTY; without even the implied warranty of
Edouard@279: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Edouard@279: * GNU General Public License for more details.
Edouard@279: *
Edouard@279: * You should have received a copy of the GNU General Public License
Edouard@279: * along with this program. If not, see .
Edouard@279: *
lbessard@70: *
lbessard@70: * This code is made available on the understanding that it will not be
lbessard@70: * used in safety-critical situations without a full and competent review.
lbessard@70: */
etisserant@139: #include
lbessard@70:
lbessard@70: class generate_c_typedecl_c: public generate_c_base_c {
lbessard@70:
lbessard@121: protected:
lbessard@121: stage4out_c &s4o_incl;
lbessard@121:
lbessard@98: private:
lbessard@98: symbol_c* current_type_name;
laurent@309: bool array_is_derived;
lbessard@98: search_base_type_c search_base_type;
laurent@328: search_constant_type_c search_constant_type;
lbessard@98:
lbessard@121: generate_c_base_c *basedecl;
lbessard@121:
lbessard@70: public:
lbessard@121: generate_c_typedecl_c(stage4out_c *s4o_ptr, stage4out_c *s4o_incl_ptr): generate_c_base_c(s4o_ptr), s4o_incl(*s4o_incl_ptr) {
lbessard@98: current_typedefinition = none_td;
lbessard@98: current_basetypedeclaration = none_bd;
laurent@328: current_type_name = NULL;
lbessard@121: basedecl = new generate_c_base_c(&s4o_incl);
lbessard@98: }
lbessard@121: generate_c_typedecl_c(stage4out_c *s4o_ptr): generate_c_base_c(s4o_ptr), s4o_incl(*s4o_ptr) {
lbessard@121: current_typedefinition = none_td;
lbessard@121: current_basetypedeclaration = none_bd;
laurent@328: current_type_name = NULL;
lbessard@121: basedecl = new generate_c_base_c(&s4o_incl);
lbessard@121: }
lbessard@121: ~generate_c_typedecl_c(void) {
lbessard@121: delete basedecl;
lbessard@121: }
lbessard@70:
lbessard@98: typedef enum {
lbessard@98: none_td,
laurent@310: enumerated_td,
lbessard@98: subrange_td,
laurent@310: array_td,
laurent@310: struct_td,
lbessard@98: } typedefinition_t;
lbessard@98:
lbessard@98: typedefinition_t current_typedefinition;
lbessard@98:
lbessard@98: typedef enum {
lbessard@98: none_bd,
lbessard@98: subrangebasetype_bd,
lbessard@98: subrangetest_bd,
laurent@309: arrayderiveddeclaration_bd,
lbessard@98: arraybasetype_bd,
lbessard@121: arraybasetypeincl_bd,
laurent@377: arraysubrange_bd
lbessard@98: } basetypedeclaration_t;
laurent@377:
lbessard@98: basetypedeclaration_t current_basetypedeclaration;
lbessard@98:
lbessard@121: void *print_list_incl(list_c *list,
lbessard@121: std::string pre_elem_str = "",
lbessard@121: std::string inter_elem_str = "",
lbessard@121: std::string post_elem_str = "",
lbessard@121: visitor_c *visitor = NULL) {
lbessard@121: if (visitor == NULL) visitor = this;
lbessard@121:
lbessard@121: if (list->n > 0) {
lbessard@121: //std::cout << "generate_c_base_c::print_list(n = " << list->n << ") 000\n";
lbessard@121: s4o_incl.print(pre_elem_str);
lbessard@121: list->elements[0]->accept(*visitor);
lbessard@121: }
lbessard@121:
lbessard@121: for(int i = 1; i < list->n; i++) {
lbessard@121: //std::cout << "generate_c_base_c::print_list " << i << "\n";
lbessard@121: s4o_incl.print(inter_elem_str);
lbessard@121: list->elements[i]->accept(*visitor);
lbessard@121: }
lbessard@121:
lbessard@121: if (list->n > 0)
lbessard@121: s4o_incl.print(post_elem_str);
lbessard@121:
lbessard@121: return NULL;
lbessard@121: }
lbessard@121:
Laurent@706: bool type_is_fb(symbol_c* type_decl) {
Laurent@706: return search_base_type.type_is_fb(type_decl);
Laurent@706: }
lbessard@121:
lbessard@70: /***************************/
lbessard@70: /* B 0 - Programming Model */
lbessard@70: /***************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*************************/
lbessard@70: /* B.1 - Common elements */
lbessard@70: /*************************/
lbessard@70: /*******************************************/
lbessard@70: /* B 1.1 - Letters, digits and identifiers */
lbessard@70: /*******************************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /*********************/
lbessard@70: /* B 1.2 - Constants */
lbessard@70: /*********************/
lbessard@70: /* originally empty... */
lbessard@70:
lbessard@70: /******************************/
lbessard@70: /* B 1.2.1 - Numeric Literals */
lbessard@70: /******************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /*******************************/
lbessard@70: /* B.1.2.2 Character Strings */
lbessard@70: /*******************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /***************************/
lbessard@70: /* B 1.2.3 - Time Literals */
lbessard@70: /***************************/
lbessard@70: /************************/
lbessard@70: /* B 1.2.3.1 - Duration */
lbessard@70: /************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /************************************/
lbessard@70: /* B 1.2.3.2 - Time of day and Date */
lbessard@70: /************************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /**********************/
lbessard@70: /* B.1.3 - Data types */
lbessard@70: /**********************/
lbessard@70: /***********************************/
lbessard@70: /* B 1.3.1 - Elementary Data Types */
lbessard@70: /***********************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /********************************/
lbessard@70: /* B.1.3.2 - Generic data types */
lbessard@70: /********************************/
lbessard@70: /* originally empty... */
lbessard@70:
lbessard@70: /********************************/
lbessard@70: /* B 1.3.3 - Derived data types */
lbessard@70: /********************************/
lbessard@98: /* subrange_type_name ':' subrange_spec_init */
lbessard@98: void *visit(subrange_type_declaration_c *symbol) {
lbessard@98: TRACE("subrange_type_declaration_c");
lbessard@98:
laurent@310: current_typedefinition = subrange_td;
laurent@328: current_type_name = symbol->subrange_type_name;
laurent@310:
laurent@221: s4o_incl.print("__DECLARE_DERIVED_TYPE(");
laurent@328: current_type_name->accept(*basedecl);
laurent@327: s4o_incl.print(",");
lbessard@98: current_basetypedeclaration = subrangebasetype_bd;
lbessard@98: symbol->subrange_spec_init->accept(*this);
lbessard@98: current_basetypedeclaration = none_bd;
laurent@221: s4o_incl.print(")\n");
lbessard@98:
lbessard@98: current_basetypedeclaration = subrangetest_bd;
lbessard@98: symbol->subrange_spec_init->accept(*this);
lbessard@98: current_basetypedeclaration = none_bd;
lbessard@98:
laurent@328: current_type_name = NULL;
laurent@310: current_typedefinition = none_td;
laurent@310:
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* subrange_specification ASSIGN signed_integer */
lbessard@70: void *visit(subrange_spec_init_c *symbol) {
lbessard@70: TRACE("subrange_spec_init_c");
lbessard@98: symbol->subrange_specification->accept(*this);
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* integer_type_name '(' subrange')' */
lbessard@98: void *visit(subrange_specification_c *symbol) {
laurent@310: if (current_typedefinition == subrange_td) {
laurent@310: switch (current_basetypedeclaration) {
laurent@310: case subrangebasetype_bd:
laurent@310: symbol->integer_type_name->accept(*basedecl);
laurent@310: break;
laurent@310: case subrangetest_bd:
laurent@310: if (symbol->subrange != NULL) {
laurent@310: current_type_name->accept(*this);
laurent@310: s4o.print(" __CHECK_");
laurent@310: current_type_name->accept(*this);
laurent@310: s4o.print("(");
laurent@310: current_type_name->accept(*this);
laurent@310: s4o.print(" value) {\n");
laurent@310: s4o.indent_right();
laurent@310:
laurent@310: if (search_base_type.type_is_subrange(symbol->integer_type_name)) {
laurent@310: s4o.print(s4o.indent_spaces + "value = __CHECK_");
laurent@310: symbol->integer_type_name->accept(*this);
laurent@310: s4o.print("(value);\n");
laurent@310: }
laurent@310:
laurent@310: symbol->subrange->accept(*this);
laurent@310:
laurent@310: s4o.indent_left();
laurent@310: s4o.print("}\n");
laurent@310: }
laurent@310: else {
laurent@310: s4o.print("#define __CHECK_");
laurent@310: current_type_name->accept(*this);
laurent@310: s4o.print(" __CHECK_");
lbessard@98: symbol->integer_type_name->accept(*this);
laurent@310: s4o.print("\n");
lbessard@98: }
laurent@310: break;
laurent@310: default:
laurent@310: break;
laurent@310: }
laurent@310: }
laurent@310: else {
laurent@310: symbol->integer_type_name->accept(*basedecl);
lbessard@98: }
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* signed_integer DOTDOT signed_integer */
lbessard@98: void *visit(subrange_c *symbol) {
lbessard@98: int dimension;
lbessard@98: switch (current_typedefinition) {
lbessard@98: case array_td:
lbessard@98: if (current_basetypedeclaration == arraysubrange_bd) {
lbessard@121: s4o_incl.print("[");
msousa@594: s4o_incl.print(symbol->dimension);
lbessard@121: s4o_incl.print("]");
lbessard@98: }
lbessard@98: else
lbessard@98: symbol->lower_limit->accept(*this);
lbessard@98: break;
lbessard@98: case subrange_td:
lbessard@98: s4o.print(s4o.indent_spaces + "if (value < ");
lbessard@98: symbol->lower_limit->accept(*this);
lbessard@98: s4o.print(")\n");
lbessard@98: s4o.indent_right();
lbessard@98: s4o.print(s4o.indent_spaces + "return ");
lbessard@98: symbol->lower_limit->accept(*this);
lbessard@98: s4o.print(";\n");
lbessard@98: s4o.indent_left();
lbessard@98: s4o.print(s4o.indent_spaces + "else if (value > ");
lbessard@98: symbol->upper_limit->accept(*this);
lbessard@98: s4o.print(")\n");
lbessard@98: s4o.indent_right();
lbessard@98: s4o.print(s4o.indent_spaces + "return ");
lbessard@98: symbol->upper_limit->accept(*this);
lbessard@98: s4o.print(";\n");
lbessard@98: s4o.indent_left();
lbessard@98: s4o.print(s4o.indent_spaces + "else\n");
lbessard@98: s4o.indent_right();
lbessard@98: s4o.print(s4o.indent_spaces + "return value;\n");
lbessard@98: s4o.indent_left();
lbessard@98: default:
lbessard@98: break;
lbessard@98: }
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* enumerated_type_name ':' enumerated_spec_init */
lbessard@98: void *visit(enumerated_type_declaration_c *symbol) {
lbessard@98: TRACE("enumerated_type_declaration_c");
lbessard@98:
laurent@310: current_typedefinition = enumerated_td;
laurent@328: current_type_name = symbol->enumerated_type_name;
laurent@310:
laurent@327: s4o_incl.print("__DECLARE_ENUMERATED_TYPE(");
laurent@328: current_type_name->accept(*basedecl);
laurent@327: s4o_incl.print(",\n");
lbessard@121: s4o_incl.indent_right();
lbessard@98: symbol->enumerated_spec_init->accept(*this);
lbessard@121: s4o_incl.indent_left();
laurent@327: s4o_incl.print(")\n");
laurent@310:
laurent@328: current_type_name = NULL;
laurent@310: current_typedefinition = none_td;
laurent@310:
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
laurent@328: /* enumerated_specification ASSIGN enumerated_value */
lbessard@70: void *visit(enumerated_spec_init_c *symbol) {
lbessard@70: TRACE("enumerated_spec_init_c");
laurent@310: if (current_typedefinition == enumerated_td)
laurent@310: symbol->enumerated_specification->accept(*this);
laurent@310: else
laurent@310: symbol->enumerated_specification->accept(*basedecl);
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* helper symbol for enumerated_specification->enumerated_spec_init */
lbessard@98: /* enumerated_value_list ',' enumerated_value */
lbessard@98: void *visit(enumerated_value_list_c *symbol) {
lbessard@121: print_list_incl(symbol, s4o_incl.indent_spaces, ",\n"+s4o_incl.indent_spaces, "\n");
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* enumerated_type_name '#' identifier */
lbessard@98: void *visit(enumerated_value_c *symbol) {
laurent@328: symbol_c *value_type;
laurent@328: if (current_typedefinition == enumerated_td)
laurent@328: current_type_name->accept(*basedecl);
laurent@328: else {
laurent@328: value_type = (symbol_c *)symbol->accept(search_constant_type);
laurent@328: if (value_type == NULL) ERROR;
laurent@328:
laurent@328: value_type->accept(*basedecl);
laurent@328: }
laurent@329: s4o_incl.print("__");
lbessard@121: symbol->value->accept(*basedecl);
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* identifier ':' array_spec_init */
lbessard@98: void *visit(array_type_declaration_c *symbol) {
lbessard@98: TRACE("array_type_declaration_c");
lbessard@98:
laurent@310: current_typedefinition = array_td;
laurent@328: current_type_name = symbol->identifier;
laurent@310:
laurent@309: array_is_derived = false;
laurent@309: current_basetypedeclaration = arrayderiveddeclaration_bd;
laurent@309: symbol->array_spec_init->accept(*this);
laurent@309: current_basetypedeclaration = none_bd;
laurent@309:
laurent@309: if (array_is_derived)
Laurent@706: s4o_incl.print("__DECLARE_DERIVED_TYPE(");
laurent@309: else
Laurent@706: s4o_incl.print("__DECLARE_ARRAY_TYPE(");
laurent@328: current_type_name->accept(*basedecl);
laurent@327: s4o_incl.print(",");
lbessard@121: current_basetypedeclaration = arraybasetypeincl_bd;
lbessard@98: symbol->array_spec_init->accept(*this);
lbessard@98: current_basetypedeclaration = none_bd;
laurent@309: if (!array_is_derived) {
Laurent@706: s4o_incl.print(",");
Laurent@706: current_basetypedeclaration = arraysubrange_bd;
Laurent@706: symbol->array_spec_init->accept(*this);
Laurent@706: current_basetypedeclaration = none_bd;
laurent@309: }
laurent@221: s4o_incl.print(")\n");
laurent@322:
laurent@328: current_type_name = NULL;
laurent@310: current_typedefinition = none_td;
laurent@310:
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@160: /* array_specification [ASSIGN array_initialization] */
lbessard@98: /* array_initialization may be NULL ! */
lbessard@98: void *visit(array_spec_init_c *symbol) {
lbessard@98: TRACE("array_spec_init_c");
lbessard@160:
laurent@322: if (current_typedefinition == array_td) {
laurent@322: switch (current_basetypedeclaration) {
Laurent@706: case arrayderiveddeclaration_bd:
Laurent@706: array_is_derived = dynamic_cast(symbol->array_specification) != NULL;
Laurent@706: break;
Laurent@706: default:
Laurent@706: if (array_is_derived)
Laurent@706: symbol->array_specification->accept(*basedecl);
Laurent@706: else
Laurent@706: symbol->array_specification->accept(*this);
Laurent@706: break;
laurent@322: }
laurent@322: }
laurent@322: else {
Laurent@706: symbol->array_specification->accept(*basedecl);
lbessard@160: }
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */
lbessard@98: void *visit(array_specification_c *symbol) {
lbessard@98: switch (current_basetypedeclaration) {
lbessard@98: case arraybasetype_bd:
lbessard@98: symbol->non_generic_type_name->accept(*this);
lbessard@98: break;
lbessard@121: case arraybasetypeincl_bd:
lbessard@121: symbol->non_generic_type_name->accept(*basedecl);
lbessard@121: break;
lbessard@98: case arraysubrange_bd:
lbessard@98: symbol->array_subrange_list->accept(*this);
lbessard@98: break;
lbessard@98: default:
lbessard@98: break;
lbessard@98: }
lbessard@98: return NULL;
lbessard@98: }
lbessard@98:
lbessard@98: /* helper symbol for array_specification */
lbessard@98: /* array_subrange_list ',' subrange */
lbessard@98: void *visit(array_subrange_list_c *symbol) {
laurent@377: print_list(symbol);
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* TYPE type_declaration_list END_TYPE */
lbessard@70: void *visit(data_type_declaration_c *symbol) {
lbessard@70: TRACE("data_type_declaration_c");
lbessard@70: symbol->type_declaration_list->accept(*this);
lbessard@70: s4o.print("\n\n");
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* helper symbol for data_type_declaration */
lbessard@70: void *visit(type_declaration_list_c *symbol) {
lbessard@70: TRACE("type_declaration_list_c");
lbessard@160: return print_list_incl(symbol, "", "\n", "\n");
lbessard@70: }
lbessard@70:
lbessard@70: /* simple_type_name ':' simple_spec_init */
lbessard@70: void *visit(simple_type_declaration_c *symbol) {
lbessard@70: TRACE("simple_type_declaration_c");
lbessard@70:
msousa@307: s4o_incl.print("__DECLARE_DERIVED_TYPE(");
laurent@327: symbol->simple_type_name->accept(*basedecl);
laurent@327: s4o_incl.print(",");
lbessard@70: symbol->simple_spec_init->accept(*this);
laurent@309: s4o_incl.print(")\n");
laurent@377:
laurent@377: if (search_base_type.type_is_subrange(symbol->simple_type_name)) {
Laurent@706: s4o.print("#define __CHECK_");
Laurent@706: current_type_name->accept(*this);
Laurent@706: s4o.print(" __CHECK_");
Laurent@706: symbol->simple_spec_init->accept(*this);
Laurent@706: s4o.print("\n");
laurent@377: }
laurent@377:
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* simple_specification [ASSIGN constant] */
lbessard@70: //SYM_REF2(simple_spec_init_c, simple_specification, constant)
lbessard@70: // may be NULL
lbessard@70: void *visit(simple_spec_init_c *symbol) {
lbessard@70: TRACE("simple_spec_init_c");
lbessard@121: symbol->simple_specification->accept(*basedecl);
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: #if 0
lbessard@70: /* subrange_type_name ':' subrange_spec_init */
lbessard@70: SYM_REF2(subrange_type_declaration_c, subrange_type_name, subrange_spec_init)
lbessard@70:
lbessard@70: /* subrange_specification ASSIGN signed_integer */
lbessard@70: SYM_REF2(subrange_spec_init_c, subrange_specification, signed_integer)
lbessard@70:
lbessard@70: /* integer_type_name '(' subrange')' */
lbessard@70: SYM_REF2(subrange_specification_c, integer_type_name, subrange)
lbessard@70:
lbessard@70: /* signed_integer DOTDOT signed_integer */
lbessard@70: SYM_REF2(subrange_c, lower_limit, upper_limit)
lbessard@70:
lbessard@70: /* enumerated_type_name ':' enumerated_spec_init */
lbessard@70: SYM_REF2(enumerated_type_declaration_c, enumerated_type_name, enumerated_spec_init)
lbessard@70:
lbessard@70: /* enumerated_specification ASSIGN enumerated_value */
lbessard@70: SYM_REF2(enumerated_spec_init_c, enumerated_specification, enumerated_value)
lbessard@70:
lbessard@70: /* helper symbol for enumerated_specification->enumerated_spec_init */
lbessard@70: /* enumerated_value_list ',' enumerated_value */
lbessard@70: SYM_LIST(enumerated_value_list_c)
lbessard@70:
lbessard@70: /* enumerated_type_name '#' identifier */
lbessard@70: SYM_REF2(enumerated_value_c, type, value)
lbessard@70:
lbessard@70: /* identifier ':' array_spec_init */
lbessard@70: SYM_REF2(array_type_declaration_c, identifier, array_spec_init)
lbessard@70:
lbessard@70: /* array_specification [ASSIGN array_initialization} */
lbessard@70: /* array_initialization may be NULL ! */
lbessard@70: SYM_REF2(array_spec_init_c, array_specification, array_initialization)
lbessard@70:
lbessard@70: /* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */
lbessard@70: SYM_REF2(array_specification_c, array_subrange_list, non_generic_type_name)
lbessard@70:
lbessard@70: /* helper symbol for array_specification */
lbessard@70: /* array_subrange_list ',' subrange */
lbessard@70: SYM_LIST(array_subrange_list_c)
lbessard@70:
lbessard@70: /* array_initialization: '[' array_initial_elements_list ']' */
lbessard@70: /* helper symbol for array_initialization */
lbessard@70: /* array_initial_elements_list ',' array_initial_elements */
lbessard@70: SYM_LIST(array_initial_elements_list_c)
lbessard@70:
lbessard@70: /* integer '(' [array_initial_element] ')' */
lbessard@70: /* array_initial_element may be NULL ! */
lbessard@70: SYM_REF2(array_initial_elements_c, integer, array_initial_element)
lbessard@70: #endif
lbessard@70:
lbessard@70: /* structure_type_name ':' structure_specification */
lbessard@70: //SYM_REF2(structure_type_declaration_c, structure_type_name, structure_specification)
lbessard@70: void *visit(structure_type_declaration_c *symbol) {
lbessard@70: TRACE("structure_type_declaration_c");
lbessard@70:
laurent@310: current_typedefinition = struct_td;
laurent@310:
laurent@221: s4o_incl.print("__DECLARE_STRUCT_TYPE(");
laurent@327: symbol->structure_type_name->accept(*basedecl);
laurent@327: s4o_incl.print(",");
lbessard@70: symbol->structure_specification->accept(*this);
laurent@327: s4o_incl.print(")\n");
laurent@310:
laurent@310: current_typedefinition = none_td;
laurent@310:
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* structure_type_name ASSIGN structure_initialization */
lbessard@70: /* structure_initialization may be NULL ! */
lbessard@70: //SYM_REF2(initialized_structure_c, structure_type_name, structure_initialization)
lbessard@70: void *visit(initialized_structure_c *symbol) {
lbessard@70: TRACE("initialized_structure_c");
lbessard@164:
lbessard@164: symbol->structure_type_name->accept(*basedecl);
lbessard@164:
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* helper symbol for structure_declaration */
lbessard@70: /* structure_declaration: STRUCT structure_element_declaration_list END_STRUCT */
lbessard@70: /* structure_element_declaration_list structure_element_declaration ';' */
lbessard@70: //SYM_LIST(structure_element_declaration_list_c)
lbessard@70: void *visit(structure_element_declaration_list_c *symbol) {
lbessard@70: TRACE("structure_element_declaration_list_c");
laurent@327: s4o_incl.print("\n");
lbessard@160: s4o_incl.indent_right();
lbessard@160: s4o_incl.print(s4o_incl.indent_spaces);
lbessard@160:
lbessard@160: print_list_incl(symbol, "", s4o_incl.indent_spaces, "");
lbessard@160:
lbessard@160: s4o_incl.indent_left();
lbessard@160: s4o_incl.print(s4o_incl.indent_spaces);
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* structure_element_name ':' spec_init */
lbessard@70: //SYM_REF2(structure_element_declaration_c, structure_element_name, spec_init)
lbessard@70: void *visit(structure_element_declaration_c *symbol) {
lbessard@70: TRACE("structure_element_declaration_c");
lbessard@70:
lbessard@70: symbol->spec_init->accept(*this);
lbessard@160: s4o_incl.print(" ");
lbessard@160: symbol->structure_element_name->accept(*basedecl);
lbessard@160: s4o_incl.print(";\n");
lbessard@160: s4o_incl.print(s4o.indent_spaces);
lbessard@70:
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* helper symbol for structure_initialization */
lbessard@70: /* structure_initialization: '(' structure_element_initialization_list ')' */
lbessard@70: /* structure_element_initialization_list ',' structure_element_initialization */
lbessard@70: //SYM_LIST(structure_element_initialization_list_c)
lbessard@70: void *visit(structure_element_initialization_list_c *symbol) {
lbessard@70: TRACE("structure_element_initialization_list_c");
lbessard@70:
lbessard@70: // TODO ???
lbessard@160: //ERROR;
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: /* structure_element_name ASSIGN value */
lbessard@70: //SYM_REF2(structure_element_initialization_c, structure_element_name, value)
lbessard@70: void *visit(structure_element_initialization_c *symbol) {
lbessard@70: TRACE("structure_element_initialization_c");
lbessard@70:
lbessard@70: // TODO ???
lbessard@160: //ERROR;
lbessard@70: return NULL;
lbessard@70: }
lbessard@70:
lbessard@70: #if 0
lbessard@70: /* string_type_name ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init */
lbessard@70: /*
lbessard@70: * NOTE:
lbessard@70: * (Summary: Contrary to what is expected, the
lbessard@70: * string_type_declaration_c is not used to store
lbessard@70: * simple string type declarations that do not include
lbessard@70: * size limits.
lbessard@70: * For e.g.:
lbessard@70: * str1_type: STRING := "hello!"
lbessard@70: * will be stored in a simple_type_declaration_c
lbessard@70: * instead of a string_type_declaration_c.
lbessard@70: * The following:
lbessard@70: * str2_type: STRING [64] := "hello!"
lbessard@70: * will be stored in a sring_type_declaration_c
lbessard@70: *
lbessard@70: * Read on for why this is done...
lbessard@70: * End Summary)
lbessard@70: *
lbessard@70: * According to the spec, the valid construct
lbessard@70: * TYPE new_str_type : STRING := "hello!"; END_TYPE
lbessard@70: * has two possible routes to type_declaration...
lbessard@70: *
lbessard@70: * Route 1:
lbessard@70: * type_declaration: single_element_type_declaration
lbessard@70: * single_element_type_declaration: simple_type_declaration
lbessard@70: * simple_type_declaration: identifier ':' simple_spec_init
lbessard@70: * simple_spec_init: simple_specification ASSIGN constant
lbessard@70: * (shift: identifier <- 'new_str_type')
lbessard@70: * simple_specification: elementary_type_name
lbessard@70: * elementary_type_name: STRING
lbessard@70: * (shift: elementary_type_name <- STRING)
lbessard@70: * (reduce: simple_specification <- elementary_type_name)
lbessard@70: * (shift: constant <- "hello!")
lbessard@70: * (reduce: simple_spec_init: simple_specification ASSIGN constant)
lbessard@70: * (reduce: ...)
lbessard@70: *
lbessard@70: *
lbessard@70: * Route 2:
lbessard@70: * type_declaration: string_type_declaration
lbessard@70: * string_type_declaration: identifier ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init
lbessard@70: * (shift: identifier <- 'new_str_type')
lbessard@70: * elementary_string_type_name: STRING
lbessard@70: * (shift: elementary_string_type_name <- STRING)
lbessard@70: * (shift: string_type_declaration_size <- empty )
lbessard@70: * string_type_declaration_init: ASSIGN character_string
lbessard@70: * (shift: character_string <- "hello!")
lbessard@70: * (reduce: string_type_declaration_init <- ASSIGN character_string)
lbessard@70: * (reduce: string_type_declaration <- identifier ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init )
lbessard@70: * (reduce: type_declaration <- string_type_declaration)
lbessard@70: *
lbessard@70: *
lbessard@70: * At first glance it seems that removing route 1 would make
lbessard@70: * the most sense. Unfortunately the construct 'simple_spec_init'
lbessard@70: * shows up multiple times in other rules, so changing this construct
lbessard@70: * would also mean changing all the rules in which it appears.
lbessard@70: * I (Mario) therefore chose to remove route 2 instead. This means
lbessard@70: * that the above declaration gets stored in a
lbessard@70: * simple_type_declaration_c, and not in a string_type_declaration_c
lbessard@70: * as would be expected!
lbessard@70: */
lbessard@70: /* string_type_name ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init */
lbessard@70: SYM_REF4(string_type_declaration_c, string_type_name,
lbessard@70: elementary_string_type_name,
lbessard@70: string_type_declaration_size,
lbessard@70: string_type_declaration_init) /* may be == NULL! */
lbessard@70: #endif
lbessard@70:
lbessard@70: /*********************/
lbessard@70: /* B 1.4 - Variables */
lbessard@70: /*********************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /********************************************/
lbessard@70: /* B.1.4.1 Directly Represented Variables */
lbessard@70: /********************************************/
lbessard@70: // direct_variable: direct_variable_token {$$ = new direct_variable_c($1);};
lbessard@70: void *visit(direct_variable_c *symbol) {
lbessard@70: TRACE("direct_variable_c");
lbessard@70: /* Do not use print_token() as it will change everything into uppercase */
lbessard@70: if (strlen(symbol->value) == 0) ERROR;
lbessard@70: return s4o.printlocation(symbol->value + 1);
lbessard@70: }
lbessard@70:
lbessard@70:
lbessard@70: /*************************************/
lbessard@70: /* B.1.4.2 Multi-element Variables */
lbessard@70: /*************************************/
lbessard@70: /* done in base class(es) */
lbessard@70:
lbessard@70: /******************************************/
lbessard@70: /* B 1.4.3 - Declaration & Initialisation */
lbessard@70: /******************************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /**************************************/
lbessard@70: /* B.1.5 - Program organization units */
lbessard@70: /**************************************/
lbessard@70: /***********************/
lbessard@70: /* B 1.5.1 - Functions */
lbessard@70: /***********************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*****************************/
lbessard@70: /* B 1.5.2 - Function Blocks */
lbessard@70: /*****************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /**********************/
lbessard@70: /* B 1.5.3 - Programs */
lbessard@70: /**********************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*********************************************/
lbessard@70: /* B.1.6 Sequential function chart elements */
lbessard@70: /*********************************************/
lbessard@70:
lbessard@70: /********************************/
lbessard@70: /* B 1.7 Configuration elements */
lbessard@70: /********************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /****************************************/
lbessard@70: /* B.2 - Language IL (Instruction List) */
lbessard@70: /****************************************/
lbessard@70: /***********************************/
lbessard@70: /* B 2.1 Instructions and Operands */
lbessard@70: /***********************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*******************/
lbessard@70: /* B 2.2 Operators */
lbessard@70: /*******************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70:
lbessard@70: /***************************************/
lbessard@70: /* B.3 - Language ST (Structured Text) */
lbessard@70: /***************************************/
lbessard@70: /***********************/
lbessard@70: /* B 3.1 - Expressions */
lbessard@70: /***********************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /********************/
lbessard@70: /* B 3.2 Statements */
lbessard@70: /********************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*********************************/
lbessard@70: /* B 3.2.1 Assignment Statements */
lbessard@70: /*********************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /*****************************************/
lbessard@70: /* B 3.2.2 Subprogram Control Statements */
lbessard@70: /*****************************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /********************************/
lbessard@70: /* B 3.2.3 Selection Statements */
lbessard@70: /********************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70: /********************************/
lbessard@70: /* B 3.2.4 Iteration Statements */
lbessard@70: /********************************/
lbessard@70: /* leave for derived classes... */
lbessard@70:
lbessard@70:
lbessard@70:
lbessard@70:
lbessard@70: }; /* generate_c_typedecl_c */
lbessard@70:
lbessard@70:
lbessard@70: