typedef struct construct_type_base_t {
construct_type_kind_t kind;
+ source_position_t pos;
construct_type_t *next;
} construct_type_base_t;
{
construct_type_t *const cons = obstack_alloc(&temp_obst, size);
memset(cons, 0, size);
- cons->kind = kind;
+ cons->kind = kind;
+ cons->base.pos = *HERE;
return cons;
}
/* §6.7.5.1 */
static construct_type_t *parse_pointer_declarator(void)
{
- eat('*');
-
construct_type_t *const cons = allocate_declarator_zero(CONSTRUCT_POINTER, sizeof(parsed_pointer_t));
+ eat('*');
cons->pointer.type_qualifiers = parse_type_qualifiers();
//cons->pointer.base_variable = base_variable;
/* ISO/IEC 14882:1998(E) §8.3.2 */
static construct_type_t *parse_reference_declarator(void)
{
- eat('&');
-
if (!(c_mode & _CXX))
errorf(HERE, "references are only available for C++");
construct_type_t *const cons = allocate_declarator_zero(CONSTRUCT_REFERENCE, sizeof(parsed_reference_t));
+ eat('&');
return cons;
}
/* §6.7.5.2 */
static construct_type_t *parse_array_declarator(void)
{
- eat('[');
- add_anchor_token(']');
-
construct_type_t *const cons = allocate_declarator_zero(CONSTRUCT_ARRAY, sizeof(parsed_array_t));
parsed_array_t *const array = &cons->array;
+ eat('[');
+ add_anchor_token(']');
+
bool is_static = next_if(T_static);
type_qualifiers_t type_qualifiers = parse_type_qualifiers();
/* §6.7.5.3 */
static construct_type_t *parse_function_declarator(scope_t *scope)
{
+ construct_type_t *const cons = allocate_declarator_zero(CONSTRUCT_FUNCTION, sizeof(construct_function_type_t));
+
type_t *type = allocate_type_zero(TYPE_FUNCTION);
function_type_t *ftype = &type->function;
parse_parameters(ftype, scope);
- construct_type_t *const cons = allocate_declarator_zero(CONSTRUCT_FUNCTION, sizeof(construct_function_type_t));
cons->function.function_type = type;
return cons;
{
construct_type_t *iter = construct_list;
for (; iter != NULL; iter = iter->base.next) {
+ source_position_t const* const pos = &iter->base.pos;
switch (iter->kind) {
case CONSTRUCT_INVALID:
break;
type_t *skipped_return_type = skip_typeref(type);
/* §6.7.5.3:1 */
if (is_type_function(skipped_return_type)) {
- errorf(HERE, "function returning function is not allowed");
+ errorf(pos, "function returning function is not allowed");
} else if (is_type_array(skipped_return_type)) {
- errorf(HERE, "function returning array is not allowed");
+ errorf(pos, "function returning array is not allowed");
} else {
if (skipped_return_type->base.qualifiers != 0 && warning.other) {
- warningf(HERE,
- "type qualifiers in return type of function type are meaningless");
+ warningf(pos, "type qualifiers in return type of function type are meaningless");
}
}
case CONSTRUCT_POINTER: {
if (is_type_reference(skip_typeref(type)))
- errorf(HERE, "cannot declare a pointer to reference");
+ errorf(pos, "cannot declare a pointer to reference");
parsed_pointer_t *pointer = &iter->pointer;
type = make_based_pointer_type(type, pointer->type_qualifiers, pointer->base_variable);
case CONSTRUCT_REFERENCE:
if (is_type_reference(skip_typeref(type)))
- errorf(HERE, "cannot declare a reference to reference");
+ errorf(pos, "cannot declare a reference to reference");
type = make_reference_type(type);
continue;
case CONSTRUCT_ARRAY: {
if (is_type_reference(skip_typeref(type)))
- errorf(HERE, "cannot declare an array of references");
+ errorf(pos, "cannot declare an array of references");
parsed_array_t *array = &iter->array;
type_t *array_type = allocate_type_zero(TYPE_ARRAY);
type_t *skipped_type = skip_typeref(type);
/* §6.7.5.2:1 */
if (is_type_incomplete(skipped_type)) {
- errorf(HERE, "array of incomplete type '%T' is not allowed", type);
+ errorf(pos, "array of incomplete type '%T' is not allowed", type);
} else if (is_type_function(skipped_type)) {
- errorf(HERE, "array of functions is not allowed");
+ errorf(pos, "array of functions is not allowed");
}
type = identify_new_type(array_type);
continue;
}
}
- internal_errorf(HERE, "invalid type construction found");
+ internal_errorf(pos, "invalid type construction found");
}
return type;
storage_class_t storage_class = specifiers->storage_class;
entity->declaration.declared_storage_class = storage_class;
- if (storage_class == STORAGE_CLASS_NONE && current_function != NULL)
+ if (storage_class == STORAGE_CLASS_NONE && current_function != NULL)
storage_class = STORAGE_CLASS_AUTO;
entity->declaration.storage_class = storage_class;
}
} else {
unsigned old_storage_class = prev_decl->storage_class;
- if (warning.redundant_decls &&
+ if (warning.redundant_decls &&
is_definition &&
!prev_decl->used &&
!(prev_decl->modifiers & DM_USED) &&
static void parse_init_declarator_rest(entity_t *entity)
{
- assert(is_declaration(entity));
- declaration_t *const declaration = &entity->declaration;
+ type_t *orig_type = type_error_type;
+ if (entity->base.kind == ENTITY_TYPEDEF) {
+ errorf(&entity->base.source_position,
+ "typedef '%Y' is initialized (use __typeof__ instead)",
+ entity->base.symbol);
+ } else {
+ assert(is_declaration(entity));
+ orig_type = entity->declaration.type;
+ }
eat('=');
- type_t *orig_type = declaration->type;
- type_t *type = skip_typeref(orig_type);
+ type_t *type = skip_typeref(orig_type);
if (entity->kind == ENTITY_VARIABLE
&& entity->variable.initializer != NULL) {
parser_error_multiple_definition(entity, HERE);
}
+ declaration_t *const declaration = &entity->declaration;
bool must_be_constant = false;
if (declaration->storage_class == STORAGE_CLASS_STATIC ||
entity->base.parent_scope == file_scope) {
/* report exact scope in error messages (like "in argument 3") */
char buf[64];
snprintf(buf, sizeof(buf), "call argument %u", pos);
- report_assign_error(error, expected_type, arg_expr, buf,
- &arg_expr->base.source_position);
+ report_assign_error(error, expected_type, arg_expr, buf,
+ &arg_expr->base.source_position);
} else if (warning.traditional || warning.conversion) {
type_t *const promoted_type = get_default_promoted_type(arg_type);
if (!types_compatible(expected_type_skip, promoted_type) &&
if (entity->declaration.storage_class == STORAGE_CLASS_REGISTER
&& !may_be_register) {
errorf(&expression->base.source_position,
- "address of register %s '%Y' requested",
- get_entity_kind_name(entity->kind), entity->base.symbol);
+ "address of register %s '%Y' requested",
+ get_entity_kind_name(entity->kind), entity->base.symbol);
}
if (entity->kind == ENTITY_VARIABLE) {
expression->base.type = arithmetic_type;
}
+static void semantic_binexpr_integer(binary_expression_t *const expression)
+{
+ expression_t *const left = expression->left;
+ expression_t *const right = expression->right;
+ type_t *const orig_type_left = left->base.type;
+ type_t *const orig_type_right = right->base.type;
+ type_t *const type_left = skip_typeref(orig_type_left);
+ type_t *const type_right = skip_typeref(orig_type_right);
+
+ if (!is_type_integer(type_left) || !is_type_integer(type_right)) {
+ /* TODO: improve error message */
+ if (is_type_valid(type_left) && is_type_valid(type_right)) {
+ errorf(&expression->base.source_position,
+ "operation needs integer types");
+ }
+ return;
+ }
+
+ type_t *const result_type = semantic_arithmetic(type_left, type_right);
+ expression->left = create_implicit_cast(left, result_type);
+ expression->right = create_implicit_cast(right, result_type);
+ expression->base.type = result_type;
+}
+
static void warn_div_by_zero(binary_expression_t const *const expression)
{
if (!warning.div_by_zero ||
CREATE_BINEXPR_PARSER(T_GREATEREQUAL, EXPR_BINARY_GREATEREQUAL, PREC_SHIFT, semantic_comparison)
CREATE_BINEXPR_PARSER(T_EXCLAMATIONMARKEQUAL, EXPR_BINARY_NOTEQUAL, PREC_RELATIONAL, semantic_comparison)
CREATE_BINEXPR_PARSER(T_EQUALEQUAL, EXPR_BINARY_EQUAL, PREC_RELATIONAL, semantic_comparison)
-CREATE_BINEXPR_PARSER('&', EXPR_BINARY_BITWISE_AND, PREC_EQUALITY, semantic_binexpr_arithmetic)
-CREATE_BINEXPR_PARSER('^', EXPR_BINARY_BITWISE_XOR, PREC_AND, semantic_binexpr_arithmetic)
-CREATE_BINEXPR_PARSER('|', EXPR_BINARY_BITWISE_OR, PREC_XOR, semantic_binexpr_arithmetic)
+CREATE_BINEXPR_PARSER('&', EXPR_BINARY_BITWISE_AND, PREC_EQUALITY, semantic_binexpr_integer)
+CREATE_BINEXPR_PARSER('^', EXPR_BINARY_BITWISE_XOR, PREC_AND, semantic_binexpr_integer)
+CREATE_BINEXPR_PARSER('|', EXPR_BINARY_BITWISE_OR, PREC_XOR, semantic_binexpr_integer)
CREATE_BINEXPR_PARSER(T_ANDAND, EXPR_BINARY_LOGICAL_AND, PREC_OR, semantic_logical_op)
CREATE_BINEXPR_PARSER(T_PIPEPIPE, EXPR_BINARY_LOGICAL_OR, PREC_LOGICAL_AND, semantic_logical_op)
CREATE_BINEXPR_PARSER('=', EXPR_BINARY_ASSIGN, PREC_ASSIGNMENT, semantic_binexpr_assign)
* @param precedence the precedence of the operator
*/
static void register_infix_parser(parse_expression_infix_function parser,
- int token_type, precedence_t precedence)
+ int token_type, precedence_t precedence)
{
expression_parser_function_t *entry = &expression_parsers[token_type];
return create_invalid_statement();
}
-static statement_t *parse_label_inner_statement(char const *const label, bool const eat_empty_stmt)
+static statement_t *parse_label_inner_statement(statement_t const *const label, char const *const label_kind)
{
statement_t *inner_stmt;
switch (token.type) {
case '}':
- errorf(HERE, "%s at end of compound statement", label);
+ errorf(&label->base.source_position, "%s at end of compound statement", label_kind);
inner_stmt = create_invalid_statement();
break;
case ';':
- if (eat_empty_stmt) {
+ if (label->kind == STATEMENT_LABEL) {
/* Eat an empty statement here, to avoid the warning about an empty
* statement after a label. label:; is commonly used to have a label
* before a closing brace. */
default:
inner_stmt = parse_statement();
- if (inner_stmt->kind == STATEMENT_DECLARATION) {
- errorf(&inner_stmt->base.source_position, "declaration after %s", label);
+ /* ISO/IEC 14882:1998(E) §6:1/§6.7 Declarations are statements */
+ if (inner_stmt->kind == STATEMENT_DECLARATION && !(c_mode & _CXX)) {
+ errorf(&inner_stmt->base.source_position, "declaration after %s", label_kind);
}
break;
}
errorf(pos, "case label not within a switch statement");
}
- statement->case_label.statement = parse_label_inner_statement("case label", false);
+ statement->case_label.statement = parse_label_inner_statement(statement, "case label");
POP_PARENT;
return statement;
"'default' label not within a switch statement");
}
- statement->case_label.statement = parse_label_inner_statement("default label", false);
+ statement->case_label.statement = parse_label_inner_statement(statement, "default label");
POP_PARENT;
return statement;
eat(':');
- statement->label.statement = parse_label_inner_statement("label", true);
+ statement->label.statement = parse_label_inner_statement(statement, "label");
/* remember the labels in a list for later checking */
*label_anchor = &statement->label;
}
} else {
assign_error_t error = semantic_assign(return_type, return_value);
- report_assign_error(error, return_type, return_value, "'return'",
- pos);
+ report_assign_error(error, return_type, return_value, "'return'",
+ pos);
}
return_value = create_implicit_cast(return_value, return_type);
/* check for returning address of a local var */
if (warning.other && return_value != NULL
- && return_value->base.kind == EXPR_UNARY_TAKE_ADDRESS) {
+ && return_value->base.kind == EXPR_UNARY_TAKE_ADDRESS) {
const expression_t *expression = return_value->unary.value;
if (expression_is_local_variable(expression)) {
warningf(pos, "function returns address of local variable");
/* ISO/IEC 14882:1998(E) §6.6.3:3 */
if (c_mode & _CXX || strict_mode) {
errorf(pos,
- "'return' without value, in function returning non-void");
+ "'return' without value, in function returning non-void");
} else {
warningf(pos,
- "'return' without value, in function returning non-void");
+ "'return' without value, in function returning non-void");
}
}
statement->returns.value = return_value;
static void parse_linkage_specification(void)
{
eat(T_extern);
- assert(token.type == T_STRING_LITERAL);
const char *linkage = parse_string_literals().begin;
projects / cparser / blobdiff