diff -r bfbe4aca6b77 -r 9b61eb4f00dc stage3/narrow_candidate_datatypes.cc --- a/stage3/narrow_candidate_datatypes.cc Tue Nov 13 18:02:15 2012 +0000 +++ b/stage3/narrow_candidate_datatypes.cc Tue Nov 13 18:03:17 2012 +0000 @@ -414,9 +414,8 @@ return search_base_type_c::get_basetype_decl(symbol); } -/*********************/ -/* B 1.2 - Constants */ -/*********************/ + + /**********************/ /* B 1.3 - Data types */ @@ -424,6 +423,18 @@ /********************************/ /* B 1.3.3 - Derived data types */ /********************************/ +/* TYPE type_declaration_list END_TYPE */ +// SYM_REF1(data_type_declaration_c, type_declaration_list) +/* NOTE: Not required. already handled by iterator_visitor_c base class */ + +/* helper symbol for data_type_declaration */ +// SYM_LIST(type_declaration_list_c) +/* NOTE: Not required. already handled by iterator_visitor_c base class */ + +/* simple_type_name ':' simple_spec_init */ +// SYM_REF2(simple_type_declaration_c, simple_type_name, simple_spec_init) +/* NOTE: Not required. already handled by iterator_visitor_c base class */ + /* simple_specification ASSIGN constant */ // SYM_REF2(simple_spec_init_c, simple_specification, constant) void *narrow_candidate_datatypes_c::visit(simple_spec_init_c *symbol) { @@ -441,9 +452,18 @@ } +/* subrange_type_name ':' subrange_spec_init */ +// SYM_REF2(subrange_type_declaration_c, subrange_type_name, subrange_spec_init) + +/* subrange_specification ASSIGN signed_integer */ +// SYM_REF2(subrange_spec_init_c, subrange_specification, signed_integer) + +/* integer_type_name '(' subrange')' */ +// SYM_REF2(subrange_specification_c, integer_type_name, subrange) /* signed_integer DOTDOT signed_integer */ -// SYM_REF2(subrange_c, lower_limit, upper_limit) +/* dimension will be filled in during stage 3 (array_range_check_c) with the number of elements in this subrange */ +// SYM_REF2(subrange_c, lower_limit, upper_limit, unsigned long long int dimension;) void *narrow_candidate_datatypes_c::visit(subrange_c *symbol) { symbol->lower_limit->datatype = symbol->datatype; symbol->lower_limit->accept(*this); @@ -453,6 +473,113 @@ } +/* enumerated_type_name ':' enumerated_spec_init */ +// SYM_REF2(enumerated_type_declaration_c, enumerated_type_name, enumerated_spec_init) +void *narrow_candidate_datatypes_c::visit(enumerated_type_declaration_c *symbol) { + symbol->datatype = search_base_type_c::get_basetype_decl(symbol); + symbol->enumerated_type_name->datatype = symbol->datatype; + symbol->enumerated_spec_init->datatype = symbol->datatype; + + symbol->enumerated_spec_init->accept(*this); + return NULL; +} + + +/* enumerated_specification ASSIGN enumerated_value */ +// SYM_REF2(enumerated_spec_init_c, enumerated_specification, enumerated_value) +void *narrow_candidate_datatypes_c::visit(enumerated_spec_init_c *symbol) { + /* If we are handling an anonymous datatype (i.e. a datatype implicitly declared inside a VAR ... END_VAR declaration) + * then the symbol->datatype has not yet been set by the previous visit(enumerated_spec_init_c) method! + */ + if (NULL == symbol->datatype) + symbol->datatype = search_base_type_c::get_basetype_decl(symbol); + symbol->enumerated_specification->datatype = symbol->datatype; + if (NULL != symbol->enumerated_value) + /* the enumerated_value_c object to which this list points to has both the datatype and the candidate_datatype_list filled in, so we + * call set_datatype() instead of setting the datatype directly! + * If the desired datatype does not match the datatypes in the candidate list, then the source code has a bug that will be caught by + * print_datatypes_error_c + */ + set_datatype(symbol->datatype, symbol->enumerated_value); + + symbol->enumerated_specification->accept(*this); /* calls enumerated_value_list_c (or identifier_c, which we ignore!) visit method */ + return NULL; +} + +/* helper symbol for enumerated_specification->enumerated_spec_init */ +/* enumerated_value_list ',' enumerated_value */ +// SYM_LIST(enumerated_value_list_c) +void *narrow_candidate_datatypes_c::visit(enumerated_value_list_c *symbol) { + if (NULL == symbol->datatype) ERROR; + + for(int i = 0; i < symbol->n; i++) { + /* the enumerated_value_c objects to which this list points to has both the datatype and the candidate_datatype_list filled in, so we + * call set_datatype() instead of setting the datatype directly! + */ + set_datatype(symbol->datatype, symbol->elements[i]); + if (NULL == symbol->elements[i]->datatype) ERROR; + } + return NULL; +} + + +/* enumerated_type_name '#' identifier */ +// SYM_REF2(enumerated_value_c, type, value) +// void *narrow_candidate_datatypes_c::visit(enumerated_value_c *symbol) {/* do nothing! */ return NULL;} + + +/* identifier ':' array_spec_init */ +// SYM_REF2(array_type_declaration_c, identifier, array_spec_init) + +/* array_specification [ASSIGN array_initialization} */ +/* array_initialization may be NULL ! */ +// SYM_REF2(array_spec_init_c, array_specification, array_initialization) + +/* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */ +// SYM_REF2(array_specification_c, array_subrange_list, non_generic_type_name) + +/* helper symbol for array_specification */ +/* array_subrange_list ',' subrange */ +// SYM_LIST(array_subrange_list_c) + +/* array_initialization: '[' array_initial_elements_list ']' */ +/* helper symbol for array_initialization */ +/* array_initial_elements_list ',' array_initial_elements */ +// SYM_LIST(array_initial_elements_list_c) + +/* integer '(' [array_initial_element] ')' */ +/* array_initial_element may be NULL ! */ +// SYM_REF2(array_initial_elements_c, integer, array_initial_element) + +/* structure_type_name ':' structure_specification */ +// SYM_REF2(structure_type_declaration_c, structure_type_name, structure_specification) + +/* structure_type_name ASSIGN structure_initialization */ +/* structure_initialization may be NULL ! */ +// SYM_REF2(initialized_structure_c, structure_type_name, structure_initialization) + +/* helper symbol for structure_declaration */ +/* structure_declaration: STRUCT structure_element_declaration_list END_STRUCT */ +/* structure_element_declaration_list structure_element_declaration ';' */ +// SYM_LIST(structure_element_declaration_list_c) + +/* structure_element_name ':' *_spec_init */ +// SYM_REF2(structure_element_declaration_c, structure_element_name, spec_init) + +/* helper symbol for structure_initialization */ +/* structure_initialization: '(' structure_element_initialization_list ')' */ +/* structure_element_initialization_list ',' structure_element_initialization */ +// SYM_LIST(structure_element_initialization_list_c) + +/* structure_element_name ASSIGN value */ +// SYM_REF2(structure_element_initialization_c, structure_element_name, value) + +/* string_type_name ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init */ +// SYM_REF4(string_type_declaration_c, string_type_name, elementary_string_type_name, string_type_declaration_size, string_type_declaration_init/* may be == NULL! */) + + + + /*********************/ /* B 1.4 - Variables */ /*********************/