#include <stdarg.h>
#include <stdbool.h>
+#include "adt/strutil.h"
#include "parser.h"
#include "diagnostic.h"
#include "format_check.h"
#include "entity_t.h"
#include "attribute_t.h"
#include "lang_features.h"
-#include "walk_statements.h"
+#include "walk.h"
#include "warning.h"
#include "printer.h"
#include "adt/bitfiddle.h"
/** Point to the current function declaration if inside a function. */
static function_t *current_function = NULL;
static entity_t *current_entity = NULL;
-static entity_t *current_init_decl = NULL;
static switch_statement_t *current_switch = NULL;
static statement_t *current_loop = NULL;
static statement_t *current_parent = NULL;
static ms_try_statement_t *current_try = NULL;
-static linkage_kind_t current_linkage = LINKAGE_INVALID;
+static linkage_kind_t current_linkage;
static goto_statement_t *goto_first = NULL;
static goto_statement_t **goto_anchor = NULL;
static label_statement_t *label_first = NULL;
static label_statement_t **label_anchor = NULL;
/** current translation unit. */
static translation_unit_t *unit = NULL;
-/** true if we are in a type property context (evaluation only for type) */
-static bool in_type_prop = false;
/** true if we are in an __extension__ context. */
static bool in_gcc_extension = false;
static struct obstack temp_obst;
static elf_visibility_tag_t default_visibility = ELF_VISIBILITY_DEFAULT;
-#define PUSH_PARENT(stmt) \
- statement_t *const prev_parent = current_parent; \
- ((void)(current_parent = (stmt)))
-#define POP_PARENT ((void)(current_parent = prev_parent))
+#define PUSH_PARENT(stmt) \
+ statement_t *const new_parent = (stmt); \
+ statement_t *const old_parent = current_parent; \
+ ((void)(current_parent = new_parent))
+#define POP_PARENT() (assert(current_parent == new_parent), (void)(current_parent = old_parent))
+
+#define PUSH_SCOPE(scope) \
+ size_t const top = environment_top(); \
+ scope_t *const new_scope = (scope); \
+ scope_t *const old_scope = scope_push(new_scope)
+#define POP_SCOPE() (assert(current_scope == new_scope), scope_pop(old_scope), environment_pop_to(top))
+
+#define PUSH_EXTENSION() \
+ (void)0; \
+ bool const old_gcc_extension = in_gcc_extension; \
+ while (next_if(T___extension__)) { \
+ in_gcc_extension = true; \
+ } \
+ do {} while (0)
+#define POP_EXTENSION() \
+ ((void)(in_gcc_extension = old_gcc_extension))
/** special symbol used for anonymous entities. */
static symbol_t *sym_anonymous = NULL;
/** The token anchor set */
-static unsigned char token_anchor_set[T_LAST_TOKEN];
+static unsigned short token_anchor_set[T_LAST_TOKEN];
/** The current source position. */
-#define HERE (&token.source_position)
+#define HERE (&token.base.source_position)
/** true if we are in GCC mode. */
#define GNU_MODE ((c_mode & _GNUC) || in_gcc_extension)
static size_t get_statement_struct_size(statement_kind_t kind)
{
static const size_t sizes[] = {
- [STATEMENT_INVALID] = sizeof(invalid_statement_t),
- [STATEMENT_EMPTY] = sizeof(empty_statement_t),
+ [STATEMENT_ERROR] = sizeof(statement_base_t),
+ [STATEMENT_EMPTY] = sizeof(statement_base_t),
[STATEMENT_COMPOUND] = sizeof(compound_statement_t),
[STATEMENT_RETURN] = sizeof(return_statement_t),
[STATEMENT_DECLARATION] = sizeof(declaration_statement_t),
static size_t get_expression_struct_size(expression_kind_t kind)
{
static const size_t sizes[] = {
- [EXPR_INVALID] = sizeof(expression_base_t),
+ [EXPR_ERROR] = sizeof(expression_base_t),
[EXPR_REFERENCE] = sizeof(reference_expression_t),
[EXPR_REFERENCE_ENUM_VALUE] = sizeof(reference_expression_t),
[EXPR_LITERAL_BOOLEAN] = sizeof(literal_expression_t),
res->base.kind = kind;
res->base.parent = current_parent;
- res->base.source_position = token.source_position;
+ res->base.source_position = token.base.source_position;
return res;
}
res->base.kind = kind;
res->base.type = type_error_type;
- res->base.source_position = token.source_position;
+ res->base.source_position = token.base.source_position;
return res;
}
* Creates a new invalid expression at the source position
* of the current token.
*/
-static expression_t *create_invalid_expression(void)
+static expression_t *create_error_expression(void)
{
- return allocate_expression_zero(EXPR_INVALID);
+ expression_t *expression = allocate_expression_zero(EXPR_ERROR);
+ expression->base.type = type_error_type;
+ return expression;
}
/**
* Creates a new invalid statement.
*/
-static statement_t *create_invalid_statement(void)
+static statement_t *create_error_statement(void)
{
- return allocate_statement_zero(STATEMENT_INVALID);
+ return allocate_statement_zero(STATEMENT_ERROR);
}
/**
static inline bool next_if(int const type)
{
- if (token.type == type) {
+ if (token.kind == type) {
next_token();
return true;
} else {
/**
* Adds a token type to the token type anchor set (a multi-set).
*/
-static void add_anchor_token(int token_type)
+static void add_anchor_token(int token_kind)
{
- assert(0 <= token_type && token_type < T_LAST_TOKEN);
- ++token_anchor_set[token_type];
+ assert(0 <= token_kind && token_kind < T_LAST_TOKEN);
+ ++token_anchor_set[token_kind];
}
/**
* Set the number of tokens types of the given type
* to zero and return the old count.
*/
-static int save_and_reset_anchor_state(int token_type)
+static int save_and_reset_anchor_state(int token_kind)
{
- assert(0 <= token_type && token_type < T_LAST_TOKEN);
- int count = token_anchor_set[token_type];
- token_anchor_set[token_type] = 0;
+ assert(0 <= token_kind && token_kind < T_LAST_TOKEN);
+ int count = token_anchor_set[token_kind];
+ token_anchor_set[token_kind] = 0;
return count;
}
/**
* Restore the number of token types to the given count.
*/
-static void restore_anchor_state(int token_type, int count)
+static void restore_anchor_state(int token_kind, int count)
{
- assert(0 <= token_type && token_type < T_LAST_TOKEN);
- token_anchor_set[token_type] = count;
+ assert(0 <= token_kind && token_kind < T_LAST_TOKEN);
+ token_anchor_set[token_kind] = count;
}
/**
* Remove a token type from the token type anchor set (a multi-set).
*/
-static void rem_anchor_token(int token_type)
+static void rem_anchor_token(int token_kind)
{
- assert(0 <= token_type && token_type < T_LAST_TOKEN);
- assert(token_anchor_set[token_type] != 0);
- --token_anchor_set[token_type];
+ assert(0 <= token_kind && token_kind < T_LAST_TOKEN);
+ assert(token_anchor_set[token_kind] != 0);
+ --token_anchor_set[token_kind];
}
/**
*/
static bool at_anchor(void)
{
- if (token.type < 0)
+ if (token.kind < 0)
return false;
- return token_anchor_set[token.type];
+ return token_anchor_set[token.kind];
}
/**
unsigned parenthesis_count = 0;
unsigned brace_count = 0;
unsigned bracket_count = 0;
- while (token.type != end_token ||
+ while (token.kind != end_token ||
parenthesis_count != 0 ||
brace_count != 0 ||
bracket_count != 0) {
- switch (token.type) {
+ switch (token.kind) {
case T_EOF: return;
case '(': ++parenthesis_count; break;
case '{': ++brace_count; break;
if (bracket_count > 0)
--bracket_count;
check_stop:
- if (token.type == end_token &&
+ if (token.kind == end_token &&
parenthesis_count == 0 &&
brace_count == 0 &&
bracket_count == 0)
*/
static void eat_until_anchor(void)
{
- while (token_anchor_set[token.type] == 0) {
- if (token.type == '(' || token.type == '{' || token.type == '[')
- eat_until_matching_token(token.type);
+ while (token_anchor_set[token.kind] == 0) {
+ if (token.kind == '(' || token.kind == '{' || token.kind == '[')
+ eat_until_matching_token(token.kind);
next_token();
}
}
next_if('}');
}
-#define eat(token_type) (assert(token.type == (token_type)), next_token())
+#define eat(token_kind) (assert(token.kind == (token_kind)), next_token())
/**
* Report a parse error because an expected token was not found.
*/
#define expect(expected, error_label) \
do { \
- if (UNLIKELY(token.type != (expected))) { \
+ if (UNLIKELY(token.kind != (expected))) { \
parse_error_expected(NULL, (expected), NULL); \
add_anchor_token(expected); \
eat_until_anchor(); \
- next_if((expected)); \
rem_anchor_token(expected); \
- goto error_label; \
+ if (token.kind != (expected)) \
+ goto error_label; \
} \
next_token(); \
} while (0)
static entity_t *get_entity(const symbol_t *const symbol,
namespace_tag_t namespc)
{
- assert(namespc != NAMESPACE_INVALID);
entity_t *entity = symbol->entity;
for (; entity != NULL; entity = entity->base.symbol_next) {
if ((namespace_tag_t)entity->base.namespc == namespc)
{
symbol_t *symbol = entity->base.symbol;
entity_namespace_t namespc = entity->base.namespc;
- assert(namespc != NAMESPACE_INVALID);
+ assert(namespc != 0);
/* replace/add entity into entity list of the symbol */
entity_t **anchor;
stack_pop_to(&label_stack, new_top);
}
-static int get_akind_rank(atomic_type_kind_t akind)
+static atomic_type_kind_t get_akind(const type_t *type)
{
- return (int) akind;
-}
-
-/**
- * Return the type rank for an atomic type.
- */
-static int get_rank(const type_t *type)
-{
- assert(!is_typeref(type));
- if (type->kind == TYPE_ENUM)
- return get_akind_rank(type->enumt.akind);
-
- assert(type->kind == TYPE_ATOMIC);
- return get_akind_rank(type->atomic.akind);
+ assert(type->kind == TYPE_ATOMIC || type->kind == TYPE_COMPLEX
+ || type->kind == TYPE_IMAGINARY || type->kind == TYPE_ENUM);
+ return type->atomic.akind;
}
/**
*/
static type_t *promote_integer(type_t *type)
{
- if (type->kind == TYPE_BITFIELD)
- type = type->bitfield.base_type;
-
- if (get_rank(type) < get_akind_rank(ATOMIC_TYPE_INT))
+ if (get_akind_rank(get_akind(type)) < get_akind_rank(ATOMIC_TYPE_INT))
type = type_int;
return type;
}
-/**
- * Create a cast expression.
- *
- * @param expression the expression to cast
- * @param dest_type the destination type
- */
-static expression_t *create_cast_expression(expression_t *expression,
- type_t *dest_type)
-{
- expression_t *cast = allocate_expression_zero(EXPR_UNARY_CAST_IMPLICIT);
-
- cast->unary.value = expression;
- cast->base.type = dest_type;
-
- return cast;
-}
-
/**
* Check if a given expression represents a null pointer constant.
*
static bool is_null_pointer_constant(const expression_t *expression)
{
/* skip void* cast */
- if (expression->kind == EXPR_UNARY_CAST ||
- expression->kind == EXPR_UNARY_CAST_IMPLICIT) {
+ if (expression->kind == EXPR_UNARY_CAST) {
type_t *const type = skip_typeref(expression->base.type);
if (types_compatible(type, type_void_ptr))
expression = expression->unary.value;
if (source_type == dest_type)
return expression;
- return create_cast_expression(expression, dest_type);
+ expression_t *cast = allocate_expression_zero(EXPR_UNARY_CAST);
+ cast->unary.value = expression;
+ cast->base.type = dest_type;
+ cast->base.implicit = true;
+
+ return cast;
}
typedef enum assign_error_t {
static string_t parse_string_literals(void)
{
- assert(token.type == T_STRING_LITERAL);
- string_t result = token.literal;
+ assert(token.kind == T_STRING_LITERAL);
+ string_t result = token.string.string;
next_token();
- while (token.type == T_STRING_LITERAL) {
- warn_string_concat(&token.source_position);
- result = concat_strings(&result, &token.literal);
+ while (token.kind == T_STRING_LITERAL) {
+ warn_string_concat(&token.base.source_position);
+ result = concat_strings(&result, &token.string.string);
next_token();
}
return result;
}
-/**
- * compare two string, ignoring double underscores on the second.
- */
-static int strcmp_underscore(const char *s1, const char *s2)
-{
- if (s2[0] == '_' && s2[1] == '_') {
- size_t len2 = strlen(s2);
- size_t len1 = strlen(s1);
- if (len1 == len2-4 && s2[len2-2] == '_' && s2[len2-1] == '_') {
- return strncmp(s1, s2+2, len2-4);
- }
- }
-
- return strcmp(s1, s2);
-}
-
static attribute_t *allocate_attribute_zero(attribute_kind_t kind)
{
attribute_t *attribute = allocate_ast_zero(sizeof(*attribute));
- attribute->kind = kind;
+ attribute->kind = kind;
+ attribute->source_position = *HERE;
return attribute;
}
{
attribute_argument_t *first = NULL;
attribute_argument_t **anchor = &first;
- if (token.type != ')') do {
+ if (token.kind != ')') do {
attribute_argument_t *argument = allocate_ast_zero(sizeof(*argument));
/* is it an identifier */
- if (token.type == T_IDENTIFIER
- && (look_ahead(1)->type == ',' || look_ahead(1)->type == ')')) {
- symbol_t *symbol = token.symbol;
+ if (token.kind == T_IDENTIFIER
+ && (look_ahead(1)->kind == ',' || look_ahead(1)->kind == ')')) {
+ symbol_t *symbol = token.identifier.symbol;
argument->kind = ATTRIBUTE_ARGUMENT_SYMBOL;
argument->v.symbol = symbol;
next_token();
static attribute_t *parse_attribute_asm(void)
{
- eat(T_asm);
-
attribute_t *attribute = allocate_attribute_zero(ATTRIBUTE_GNU_ASM);
+ eat(T_asm);
expect('(', end_error);
attribute->a.arguments = parse_attribute_arguments();
static symbol_t *get_symbol_from_token(void)
{
- switch(token.type) {
+ switch(token.kind) {
case T_IDENTIFIER:
- return token.symbol;
+ return token.identifier.symbol;
case T_auto:
case T_char:
case T_double:
case T_volatile:
case T_inline:
/* maybe we need more tokens ... add them on demand */
- return get_token_symbol(&token);
+ return get_token_kind_symbol(token.kind);
default:
return NULL;
}
}
const char *attribute_name = get_attribute_name(kind);
- if (attribute_name != NULL
- && strcmp_underscore(attribute_name, name) == 0)
+ if (attribute_name != NULL && streq_underscore(attribute_name, name))
break;
}
- next_token();
-
attribute_t *attribute = allocate_attribute_zero(kind);
+ next_token();
/* parse arguments */
if (next_if('('))
expect('(', end_error);
expect('(', end_error);
- if (token.type != ')') do {
+ if (token.kind != ')') do {
attribute_t *attribute = parse_attribute_gnu_single();
if (attribute == NULL)
goto end_error;
anchor = &(*anchor)->next;
attribute_t *attribute;
- switch (token.type) {
+ switch (token.kind) {
case T___attribute__:
attribute = parse_attribute_gnu();
if (attribute == NULL)
break;
case T_cdecl:
- next_token();
attribute = allocate_attribute_zero(ATTRIBUTE_MS_CDECL);
+ eat(T_cdecl);
break;
case T__fastcall:
- next_token();
attribute = allocate_attribute_zero(ATTRIBUTE_MS_FASTCALL);
+ eat(T__fastcall);
break;
case T__forceinline:
- next_token();
attribute = allocate_attribute_zero(ATTRIBUTE_MS_FORCEINLINE);
+ eat(T__forceinline);
break;
case T__stdcall:
- next_token();
attribute = allocate_attribute_zero(ATTRIBUTE_MS_STDCALL);
+ eat(T__stdcall);
break;
case T___thiscall:
/* TODO record modifier */
warningf(WARN_OTHER, HERE, "Ignoring declaration modifier %K", &token);
- eat(T___thiscall);
attribute = allocate_attribute_zero(ATTRIBUTE_MS_THISCALL);
+ eat(T___thiscall);
break;
default:
ent = determine_lhs_ent(ref, lhs_ent);
lhs_ent = ent;
} else {
- mark_vars_read(expr->select.compound, lhs_ent);
+ mark_vars_read(ref, lhs_ent);
}
mark_vars_read(expr->array_access.index, lhs_ent);
return ent;
}
case EXPR_SELECT: {
- if (is_type_compound(skip_typeref(expr->base.type))) {
+ mark_vars_read(expr->select.compound, lhs_ent);
+ if (is_type_compound(skip_typeref(expr->base.type)))
return determine_lhs_ent(expr->select.compound, lhs_ent);
- } else {
- mark_vars_read(expr->select.compound, lhs_ent);
- return NULL;
- }
+ return NULL;
}
case EXPR_UNARY_DEREFERENCE: {
return;
case EXPR_ARRAY_ACCESS: {
+ mark_vars_read(expr->array_access.index, lhs_ent);
expression_t *const ref = expr->array_access.array_ref;
+ if (!is_type_array(skip_typeref(revert_automatic_type_conversion(ref)))) {
+ if (lhs_ent == ENT_ANY)
+ lhs_ent = NULL;
+ }
mark_vars_read(ref, lhs_ent);
- lhs_ent = determine_lhs_ent(ref, lhs_ent);
- mark_vars_read(expr->array_access.index, lhs_ent);
return;
}
case EXPR_UNARY_POSTFIX_DECREMENT:
case EXPR_UNARY_PREFIX_INCREMENT:
case EXPR_UNARY_PREFIX_DECREMENT:
- case EXPR_UNARY_CAST_IMPLICIT:
case EXPR_UNARY_ASSUME:
unary:
mark_vars_read(expr->unary.value, lhs_ent);
return;
EXPR_LITERAL_CASES
- case EXPR_UNKNOWN:
- case EXPR_INVALID:
+ case EXPR_ERROR:
case EXPR_STRING_LITERAL:
case EXPR_WIDE_STRING_LITERAL:
case EXPR_COMPOUND_LITERAL: // TODO init?
for (;;) {
designator_t *designator;
- switch (token.type) {
+ switch (token.kind) {
case '[':
designator = allocate_ast_zero(sizeof(designator[0]));
- designator->source_position = token.source_position;
+ designator->source_position = token.base.source_position;
next_token();
add_anchor_token(']');
designator->array_index = parse_constant_expression();
break;
case '.':
designator = allocate_ast_zero(sizeof(designator[0]));
- designator->source_position = token.source_position;
+ designator->source_position = token.base.source_position;
next_token();
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing designator",
T_IDENTIFIER, NULL);
return NULL;
}
- designator->symbol = token.symbol;
+ designator->symbol = token.identifier.symbol;
next_token();
break;
default:
{
/* there might be extra {} hierarchies */
int braces = 0;
- if (token.type == '{') {
+ if (token.kind == '{') {
warningf(WARN_OTHER, HERE, "extra curly braces around scalar initializer");
do {
eat('{');
++braces;
- } while (token.type == '{');
+ } while (token.kind == '{');
}
expression_t *expression = parse_assignment_expression();
bool additional_warning_displayed = false;
while (braces > 0) {
next_if(',');
- if (token.type != '}') {
+ if (token.kind != '}') {
if (!additional_warning_displayed) {
warningf(WARN_OTHER, HERE, "additional elements in scalar initializer");
additional_warning_displayed = true;
top->type = top_type;
if (is_type_compound(top_type)) {
- compound_t *compound = top_type->compound.compound;
- entity_t *entry = compound->members.entities;
+ compound_t *const compound = top_type->compound.compound;
+ entity_t *const entry = skip_unnamed_bitfields(compound->members.entities);
if (entry != NULL) {
- assert(entry->kind == ENTITY_COMPOUND_MEMBER);
top->v.compound_entry = &entry->declaration;
path->top_type = entry->declaration.type;
} else {
return false;
}
assert(iter->kind == ENTITY_COMPOUND_MEMBER);
- if (used_in_offsetof) {
- type_t *real_type = skip_typeref(iter->declaration.type);
- if (real_type->kind == TYPE_BITFIELD) {
- errorf(&designator->source_position,
- "offsetof designator '%Y' must not specify bitfield",
- symbol);
- return false;
- }
+ if (used_in_offsetof && iter->compound_member.bitfield) {
+ errorf(&designator->source_position,
+ "offsetof designator '%Y' must not specify bitfield",
+ symbol);
+ return false;
}
top->type = orig_type;
} else if (is_type_struct(type)) {
declaration_t *entry = top->v.compound_entry;
- entity_t *next_entity = entry->base.next;
+ entity_t *const next_entity = skip_unnamed_bitfields(entry->base.next);
if (next_entity != NULL) {
assert(is_declaration(next_entity));
entry = &next_entity->declaration;
{
next_if('{');
- while (token.type != '}') {
- if (token.type == T_EOF)
+ while (token.kind != '}') {
+ if (token.kind == T_EOF)
return;
- if (token.type == '{') {
+ if (token.kind == '{') {
eat_block();
continue;
}
type_t *outer_type, size_t top_path_level,
parse_initializer_env_t *env)
{
- if (token.type == '}') {
+ if (token.kind == '}') {
/* empty initializer */
return create_empty_initializer();
}
while (true) {
designator_t *designator = NULL;
- if (token.type == '.' || token.type == '[') {
+ if (token.kind == '.' || token.kind == '[') {
designator = parse_designation();
goto finish_designator;
- } else if (token.type == T_IDENTIFIER && look_ahead(1)->type == ':') {
+ } else if (token.kind == T_IDENTIFIER && look_ahead(1)->kind == ':') {
/* GNU-style designator ("identifier: value") */
designator = allocate_ast_zero(sizeof(designator[0]));
- designator->source_position = token.source_position;
- designator->symbol = token.symbol;
+ designator->source_position = token.base.source_position;
+ designator->symbol = token.identifier.symbol;
eat(T_IDENTIFIER);
eat(':');
initializer_t *sub;
- if (token.type == '{') {
+ if (token.kind == '{') {
if (type != NULL && is_type_scalar(type)) {
sub = parse_scalar_initializer(type, env->must_be_constant);
} else {
sub = initializer_from_expression(outer_type, expression);
if (sub != NULL) {
next_if(',');
- if (token.type != '}') {
+ if (token.kind != '}') {
warningf(WARN_OTHER, HERE, "excessive elements in initializer for type '%T'", orig_type);
}
/* TODO: eat , ... */
ARR_APP1(initializer_t*, initializers, sub);
error_parse_next:
- if (token.type == '}') {
+ if (token.kind == '}') {
break;
}
expect(',', end_error);
- if (token.type == '}') {
+ if (token.kind == '}') {
break;
}
if (is_type_scalar(type)) {
result = parse_scalar_initializer(type, env->must_be_constant);
- } else if (token.type == '{') {
+ } else if (token.kind == '{') {
eat('{');
type_path_t path;
entity_t *entity = NULL;
attribute_t *attributes = NULL;
- if (token.type == T___attribute__) {
+ if (token.kind == T___attribute__) {
attributes = parse_attributes(NULL);
}
entity_kind_tag_t const kind = is_struct ? ENTITY_STRUCT : ENTITY_UNION;
- if (token.type == T_IDENTIFIER) {
+ if (token.kind == T_IDENTIFIER) {
/* the compound has a name, check if we have seen it already */
- symbol = token.symbol;
+ symbol = token.identifier.symbol;
entity = get_tag(symbol, kind);
next_token();
if (entity != NULL) {
if (entity->base.parent_scope != current_scope &&
- (token.type == '{' || token.type == ';')) {
+ (token.kind == '{' || token.kind == ';')) {
/* we're in an inner scope and have a definition. Shadow
* existing definition in outer scope */
entity = NULL;
- } else if (entity->compound.complete && token.type == '{') {
+ } else if (entity->compound.complete && token.kind == '{') {
source_position_t const *const ppos = &entity->base.source_position;
errorf(&pos, "multiple definitions of '%N' (previous definition %P)", entity, ppos);
/* clear members in the hope to avoid further errors */
entity->compound.members.entities = NULL;
}
}
- } else if (token.type != '{') {
+ } else if (token.kind != '{') {
char const *const msg =
is_struct ? "while parsing struct type specifier" :
"while parsing union type specifier";
append_entity(current_scope, entity);
}
- if (token.type == '{') {
+ if (token.kind == '{') {
parse_compound_type_entries(&entity->compound);
/* ISO/IEC 14882:1998(E) §7.1.3:5 */
{
eat('{');
- if (token.type == '}') {
+ if (token.kind == '}') {
errorf(HERE, "empty enum not allowed");
next_token();
return;
add_anchor_token('}');
do {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing enum entry", T_IDENTIFIER, NULL);
eat_block();
rem_anchor_token('}');
return;
}
- entity_t *const entity = allocate_entity_zero(ENTITY_ENUM_VALUE, NAMESPACE_NORMAL, token.symbol);
+ symbol_t *symbol = token.identifier.symbol;
+ entity_t *const entity
+ = allocate_entity_zero(ENTITY_ENUM_VALUE, NAMESPACE_NORMAL, symbol);
entity->enum_value.enum_type = enum_type;
- entity->base.source_position = token.source_position;
+ entity->base.source_position = token.base.source_position;
next_token();
if (next_if('=')) {
}
record_entity(entity, false);
- } while (next_if(',') && token.type != '}');
+ } while (next_if(',') && token.kind != '}');
rem_anchor_token('}');
expect('}', end_error);
symbol_t *symbol;
eat(T_enum);
- switch (token.type) {
+ switch (token.kind) {
case T_IDENTIFIER:
- symbol = token.symbol;
+ symbol = token.identifier.symbol;
entity = get_tag(symbol, ENTITY_ENUM);
next_token();
if (entity != NULL) {
if (entity->base.parent_scope != current_scope &&
- (token.type == '{' || token.type == ';')) {
+ (token.kind == '{' || token.kind == ';')) {
/* we're in an inner scope and have a definition. Shadow
* existing definition in outer scope */
entity = NULL;
- } else if (entity->enume.complete && token.type == '{') {
+ } else if (entity->enume.complete && token.kind == '{') {
source_position_t const *const ppos = &entity->base.source_position;
errorf(&pos, "multiple definitions of '%N' (previous definition %P)", entity, ppos);
}
entity->base.parent_scope = current_scope;
}
- type_t *const type = allocate_type_zero(TYPE_ENUM);
- type->enumt.enume = &entity->enume;
- type->enumt.akind = ATOMIC_TYPE_INT;
+ type_t *const type = allocate_type_zero(TYPE_ENUM);
+ type->enumt.enume = &entity->enume;
+ type->enumt.base.akind = ATOMIC_TYPE_INT;
- if (token.type == '{') {
+ if (token.kind == '{') {
if (symbol != NULL) {
environment_push(entity);
}
expression_t *expression = NULL;
- bool old_type_prop = in_type_prop;
- bool old_gcc_extension = in_gcc_extension;
- in_type_prop = true;
-
- while (next_if(T___extension__)) {
- /* This can be a prefix to a typename or an expression. */
- in_gcc_extension = true;
- }
- switch (token.type) {
+ switch (token.kind) {
case T_IDENTIFIER:
- if (is_typedef_symbol(token.symbol)) {
+ if (is_typedef_symbol(token.identifier.symbol)) {
DECLARATION_START
type = parse_typename();
} else {
}
break;
}
- in_type_prop = old_type_prop;
- in_gcc_extension = old_gcc_extension;
rem_anchor_token(')');
expect(')', end_error);
= allocate_ast_zero(sizeof(*property));
do {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing property declspec",
T_IDENTIFIER, NULL);
goto end_error;
}
symbol_t **prop;
- symbol_t *symbol = token.symbol;
- if (strcmp(symbol->string, "put") == 0) {
+ symbol_t *symbol = token.identifier.symbol;
+ if (streq(symbol->string, "put")) {
prop = &property->put_symbol;
- } else if (strcmp(symbol->string, "get") == 0) {
+ } else if (streq(symbol->string, "get")) {
prop = &property->get_symbol;
} else {
errorf(HERE, "expected put or get in property declspec");
}
eat(T_IDENTIFIER);
expect('=', end_error);
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing property declspec",
T_IDENTIFIER, NULL);
goto end_error;
}
if (prop != NULL)
- *prop = token.symbol;
+ *prop = token.identifier.symbol;
next_token();
} while (next_if(','));
attribute_kind_t kind = ATTRIBUTE_UNKNOWN;
if (next_if(T_restrict)) {
kind = ATTRIBUTE_MS_RESTRICT;
- } else if (token.type == T_IDENTIFIER) {
- const char *name = token.symbol->string;
+ } else if (token.kind == T_IDENTIFIER) {
+ const char *name = token.identifier.symbol->string;
for (attribute_kind_t k = ATTRIBUTE_MS_FIRST; k <= ATTRIBUTE_MS_LAST;
++k) {
const char *attribute_name = get_attribute_name(k);
- if (attribute_name != NULL && strcmp(attribute_name, name) == 0) {
+ if (attribute_name != NULL && streq(attribute_name, name)) {
kind = k;
break;
}
if (kind == ATTRIBUTE_UNKNOWN) {
warningf(WARN_ATTRIBUTE, HERE, "unknown __declspec '%s' ignored", name);
}
- eat(T_IDENTIFIER);
} else {
parse_error_expected("while parsing __declspec", T_IDENTIFIER, NULL);
return NULL;
}
attribute_t *attribute = allocate_attribute_zero(kind);
+ eat(T_IDENTIFIER);
if (kind == ATTRIBUTE_MS_PROPERTY) {
return parse_attribute_ms_property(attribute);
static void parse_declaration_specifiers(declaration_specifiers_t *specifiers)
{
- type_t *type = NULL;
- type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
- unsigned type_specifiers = 0;
- bool newtype = false;
- bool saw_error = false;
- bool old_gcc_extension = in_gcc_extension;
+ type_t *type = NULL;
+ type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
+ unsigned type_specifiers = 0;
+ bool newtype = false;
+ bool saw_error = false;
memset(specifiers, 0, sizeof(*specifiers));
- specifiers->source_position = token.source_position;
+ specifiers->source_position = token.base.source_position;
while (true) {
specifiers->attributes = parse_attributes(specifiers->attributes);
- switch (token.type) {
+ switch (token.kind) {
/* storage class */
#define MATCH_STORAGE_CLASS(token, class) \
case token: \
MATCH_TYPE_QUALIFIER(T___uptr, TYPE_QUALIFIER_UPTR);
MATCH_TYPE_QUALIFIER(T___sptr, TYPE_QUALIFIER_SPTR);
- case T___extension__:
- next_token();
- in_gcc_extension = true;
- break;
-
/* type specifiers */
#define MATCH_SPECIFIER(token, specifier, name) \
case token: \
/* Be somewhat resilient to typos like 'unsigned lng* f()' in a
* declaration, so it doesn't generate errors about expecting '(' or
* '{' later on. */
- switch (look_ahead(1)->type) {
+ switch (look_ahead(1)->kind) {
STORAGE_CLASSES
TYPE_SPECIFIERS
case T_const:
}
}
- type_t *const typedef_type = get_typedef_type(token.symbol);
+ type_t *const typedef_type = get_typedef_type(token.identifier.symbol);
if (typedef_type == NULL) {
/* Be somewhat resilient to typos like 'vodi f()' at the beginning of a
* declaration, so it doesn't generate 'implicit int' followed by more
* errors later on. */
- token_type_t const la1_type = (token_type_t)look_ahead(1)->type;
+ token_kind_t const la1_type = (token_kind_t)look_ahead(1)->kind;
switch (la1_type) {
DECLARATION_START
case T_IDENTIFIER:
case '*': {
errorf(HERE, "%K does not name a type", &token);
- entity_t *entity =
- create_error_entity(token.symbol, ENTITY_TYPEDEF);
+ symbol_t *symbol = token.identifier.symbol;
+ entity_t *entity
+ = create_error_entity(symbol, ENTITY_TYPEDEF);
type = allocate_type_zero(TYPE_TYPEDEF);
type->typedeft.typedefe = &entity->typedefe;
finish_specifiers:
specifiers->attributes = parse_attributes(specifiers->attributes);
- in_gcc_extension = old_gcc_extension;
-
if (type == NULL || (saw_error && type_specifiers != 0)) {
atomic_type_kind_t atomic_type;
}
if (type_specifiers & SPECIFIER_COMPLEX) {
- type = allocate_type_zero(TYPE_COMPLEX);
- type->complex.akind = atomic_type;
+ type = allocate_type_zero(TYPE_COMPLEX);
} else if (type_specifiers & SPECIFIER_IMAGINARY) {
- type = allocate_type_zero(TYPE_IMAGINARY);
- type->imaginary.akind = atomic_type;
+ type = allocate_type_zero(TYPE_IMAGINARY);
} else {
- type = allocate_type_zero(TYPE_ATOMIC);
- type->atomic.akind = atomic_type;
+ type = allocate_type_zero(TYPE_ATOMIC);
}
+ type->atomic.akind = atomic_type;
newtype = true;
} else if (type_specifiers != 0) {
errorf(&specifiers->source_position, "multiple datatypes in declaration");
type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
while (true) {
- switch (token.type) {
+ switch (token.kind) {
/* type qualifiers */
MATCH_TYPE_QUALIFIER(T_const, TYPE_QUALIFIER_CONST);
MATCH_TYPE_QUALIFIER(T_restrict, TYPE_QUALIFIER_RESTRICT);
*/
static void parse_identifier_list(scope_t *scope)
{
+ assert(token.kind == T_IDENTIFIER);
do {
- entity_t *const entity = allocate_entity_zero(ENTITY_PARAMETER, NAMESPACE_NORMAL, token.symbol);
- entity->base.source_position = token.source_position;
+ entity_t *const entity = allocate_entity_zero(ENTITY_PARAMETER, NAMESPACE_NORMAL, token.identifier.symbol);
+ entity->base.source_position = token.base.source_position;
/* a K&R parameter has no type, yet */
next_token();
if (scope != NULL)
append_entity(scope, entity);
- } while (next_if(',') && token.type == T_IDENTIFIER);
+ } while (next_if(',') && token.kind == T_IDENTIFIER);
}
static entity_t *parse_parameter(void)
static bool has_parameters(void)
{
/* func(void) is not a parameter */
- if (token.type == T_IDENTIFIER) {
- entity_t const *const entity = get_entity(token.symbol, NAMESPACE_NORMAL);
+ if (token.kind == T_IDENTIFIER) {
+ entity_t const *const entity
+ = get_entity(token.identifier.symbol, NAMESPACE_NORMAL);
if (entity == NULL)
return true;
if (entity->kind != ENTITY_TYPEDEF)
return true;
if (skip_typeref(entity->typedefe.type) != type_void)
return true;
- } else if (token.type != T_void) {
+ } else if (token.kind != T_void) {
return true;
}
- if (look_ahead(1)->type != ')')
+ if (look_ahead(1)->kind != ')')
return true;
next_token();
return false;
add_anchor_token(')');
int saved_comma_state = save_and_reset_anchor_state(',');
- if (token.type == T_IDENTIFIER &&
- !is_typedef_symbol(token.symbol)) {
- token_type_t la1_type = (token_type_t)look_ahead(1)->type;
+ if (token.kind == T_IDENTIFIER
+ && !is_typedef_symbol(token.identifier.symbol)) {
+ token_kind_t la1_type = (token_kind_t)look_ahead(1)->kind;
if (la1_type == ',' || la1_type == ')') {
type->kr_style_parameters = true;
parse_identifier_list(scope);
}
}
- if (token.type == ')') {
+ if (token.kind == ')') {
/* ISO/IEC 14882:1998(E) §C.1.6:1 */
if (!(c_mode & _CXX))
type->unspecified_parameters = true;
} else if (has_parameters()) {
function_parameter_t **anchor = &type->parameters;
do {
- switch (token.type) {
+ switch (token.kind) {
case T_DOTDOTDOT:
next_token();
type->variadic = true;
goto parameters_finished;
case T_IDENTIFIER:
- case T___extension__:
DECLARATION_START
{
entity_t *entity = parse_parameter();
}
typedef enum construct_type_kind_t {
- CONSTRUCT_INVALID,
- CONSTRUCT_POINTER,
+ CONSTRUCT_POINTER = 1,
CONSTRUCT_REFERENCE,
CONSTRUCT_FUNCTION,
CONSTRUCT_ARRAY
array->is_static = is_static;
expression_t *size = NULL;
- if (token.type == '*' && look_ahead(1)->type == ']') {
+ if (token.kind == '*' && look_ahead(1)->kind == ']') {
array->is_variable = true;
next_token();
- } else if (token.type != ']') {
+ } else if (token.kind != ']') {
size = parse_assignment_expression();
/* §6.7.5.2:1 Array size must have integer type */
for (;;) {
construct_type_t *type;
//variable_t *based = NULL; /* MS __based extension */
- switch (token.type) {
+ switch (token.kind) {
case '&':
type = parse_reference_declarator();
break;
ptr_operator_end: ;
construct_type_t *inner_types = NULL;
- switch (token.type) {
+ switch (token.kind) {
case T_IDENTIFIER:
if (env->must_be_abstract) {
errorf(HERE, "no identifier expected in typename");
} else {
- env->symbol = token.symbol;
- env->source_position = token.source_position;
+ env->symbol = token.identifier.symbol;
+ env->source_position = token.base.source_position;
}
next_token();
break;
case '(': {
/* Parenthesized declarator or function declarator? */
token_t const *const la1 = look_ahead(1);
- switch (la1->type) {
+ switch (la1->kind) {
case T_IDENTIFIER:
- if (is_typedef_symbol(la1->symbol)) {
+ if (is_typedef_symbol(la1->identifier.symbol)) {
case ')':
/* §6.7.6:2 footnote 126: Empty parentheses in a type name are
* interpreted as ``function with no parameter specification'', rather
for (;;) {
construct_type_t *type;
- switch (token.type) {
+ switch (token.kind) {
case '(': {
scope_t *scope = NULL;
if (!env->must_be_abstract) {
for (; iter != NULL; iter = iter->base.next) {
source_position_t const* const pos = &iter->base.pos;
switch (iter->kind) {
- case CONSTRUCT_INVALID:
- break;
case CONSTRUCT_FUNCTION: {
construct_function_type_t *function = &iter->function;
type_t *function_type = function->function_type;
errorf(pos, "function returning array is not allowed");
} else {
if (skipped_return_type->base.qualifiers != 0) {
- warningf(WARN_OTHER, pos, "type qualifiers in return type of function type are meaningless");
+ warningf(WARN_IGNORED_QUALIFIERS, pos, "type qualifiers in return type of function type are meaningless");
}
}
handle_entity_attributes(attributes, entity);
}
+ if (entity->kind == ENTITY_FUNCTION && !freestanding) {
+ adapt_special_functions(&entity->function);
+ }
+
return entity;
}
*/
static bool is_sym_main(const symbol_t *const sym)
{
- return strcmp(sym->string, "main") == 0;
+ return streq(sym->string, "main");
}
static void error_redefined_as_different_kind(const source_position_t *pos,
goto finish;
}
if (previous_entity->kind == ENTITY_TYPEDEF) {
- /* TODO: C++ allows this for exactly the same type */
- errorf(pos, "redefinition of '%N' (declared %P)", entity, ppos);
+ type_t *const type = skip_typeref(entity->typedefe.type);
+ type_t *const prev_type
+ = skip_typeref(previous_entity->typedefe.type);
+ if (c_mode & _CXX) {
+ /* C++ allows double typedef if they are identical
+ * (after skipping typedefs) */
+ if (type == prev_type)
+ goto finish;
+ } else {
+ /* GCC extension: redef in system headers is allowed */
+ if ((pos->is_system_header || ppos->is_system_header) &&
+ types_compatible(type, prev_type))
+ goto finish;
+ }
+ errorf(pos, "redefinition of '%N' (declared %P)",
+ entity, ppos);
goto finish;
}
merge_in_attributes(decl, prev_decl->attributes);
} else if (!is_definition &&
is_type_valid(prev_type) &&
- strcmp(ppos->input_name, "<builtin>") != 0) {
+ !pos->is_system_header) {
warningf(WARN_REDUNDANT_DECLS, pos, "redundant declaration for '%Y' (declared %P)", symbol, ppos);
}
} else if (current_function == NULL) {
static bool is_declaration_specifier(const token_t *token)
{
- switch (token->type) {
+ switch (token->kind) {
DECLARATION_START
return true;
case T_IDENTIFIER:
- return is_typedef_symbol(token->symbol);
+ return is_typedef_symbol(token->identifier.symbol);
default:
return false;
env.type = orig_type;
env.must_be_constant = must_be_constant;
env.entity = entity;
- current_init_decl = entity;
initializer_t *initializer = parse_initializer(&env);
- current_init_decl = NULL;
if (entity->kind == ENTITY_VARIABLE) {
/* §6.7.5:22 array initializers for arrays with unknown size
add_anchor_token(';');
add_anchor_token(',');
while (true) {
- entity_t *entity = finished_declaration(ndeclaration, token.type == '=');
+ entity_t *entity = finished_declaration(ndeclaration, token.kind == '=');
- if (token.type == '=') {
+ if (token.kind == '=') {
parse_init_declarator_rest(entity);
} else if (entity->kind == ENTITY_VARIABLE) {
/* ISO/IEC 14882:1998(E) §8.5.3:3 The initializer can be omitted
parse_declaration_specifiers(&specifiers);
rem_anchor_token(';');
- if (token.type == ';') {
+ if (token.kind == ';') {
parse_anonymous_declaration_rest(&specifiers);
} else {
entity_t *entity = parse_declarator(&specifiers, flags);
add_anchor_token('{');
- /* push function parameters */
- size_t const top = environment_top();
- scope_t *old_scope = scope_push(&entity->function.parameters);
+ PUSH_SCOPE(&entity->function.parameters);
entity_t *parameter = entity->function.parameters.entities;
for ( ; parameter != NULL; parameter = parameter->base.next) {
/* parse declaration list */
for (;;) {
- switch (token.type) {
+ switch (token.kind) {
DECLARATION_START
- case T___extension__:
/* This covers symbols, which are no type, too, and results in
* better error messages. The typical cases are misspelled type
* names and missing includes. */
}
decl_list_end:
- /* pop function parameters */
- assert(current_scope == &entity->function.parameters);
- scope_pop(old_scope);
- environment_pop_to(top);
+ POP_SCOPE();
/* update function type */
type_t *new_type = duplicate_type(type);
case EXPR_BUILTIN_CONSTANT_P:
case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
case EXPR_OFFSETOF:
- case EXPR_INVALID:
+ case EXPR_ERROR:
return true;
case EXPR_STATEMENT: {
return
expression_returns(expr->binary.left) &&
expression_returns(expr->binary.right);
-
- case EXPR_UNKNOWN:
- break;
}
panic("unhandled expression");
statement_t *last = stmt;
statement_t *next;
switch (stmt->kind) {
- case STATEMENT_INVALID:
+ case STATEMENT_ERROR:
case STATEMENT_EMPTY:
case STATEMENT_ASM:
next = stmt->base.next;
}
switch (next->kind) {
- case STATEMENT_INVALID:
+ case STATEMENT_ERROR:
case STATEMENT_EMPTY:
case STATEMENT_DECLARATION:
case STATEMENT_EXPRESSION:
rem_anchor_token(';');
/* must be a declaration */
- if (token.type == ';') {
+ if (token.kind == ';') {
parse_anonymous_declaration_rest(&specifiers);
return;
}
rem_anchor_token(',');
/* must be a declaration */
- switch (token.type) {
+ switch (token.kind) {
case ',':
case ';':
case '=':
/* must be a function definition */
parse_kr_declaration_list(ndeclaration);
- if (token.type != '{') {
+ if (token.kind != '{') {
parse_error_expected("while parsing function definition", '{', NULL);
eat_until_matching_token(';');
return;
assert(is_declaration(entity));
type = skip_typeref(entity->declaration.type);
- /* push function parameters and switch scope */
- size_t const top = environment_top();
- scope_t *old_scope = scope_push(&function->parameters);
+ PUSH_SCOPE(&function->parameters);
entity_t *parameter = function->parameters.entities;
for (; parameter != NULL; parameter = parameter->base.next) {
entity_t *old_current_entity = current_entity;
current_function = function;
current_entity = entity;
- current_parent = NULL;
+ PUSH_PARENT(NULL);
goto_first = NULL;
goto_anchor = &goto_first;
}
}
- assert(current_parent == NULL);
+ POP_PARENT();
assert(current_function == function);
assert(current_entity == entity);
current_entity = old_current_entity;
label_pop_to(label_stack_top);
}
- assert(current_scope == &function->parameters);
- scope_pop(old_scope);
- environment_pop_to(top);
-}
-
-static type_t *make_bitfield_type(type_t *base_type, expression_t *size,
- source_position_t *source_position,
- const symbol_t *symbol)
-{
- type_t *type = allocate_type_zero(TYPE_BITFIELD);
-
- type->bitfield.base_type = base_type;
- type->bitfield.size_expression = size;
-
- il_size_t bit_size;
- type_t *skipped_type = skip_typeref(base_type);
- if (!is_type_integer(skipped_type)) {
- errorf(source_position, "bitfield base type '%T' is not an integer type", base_type);
- bit_size = 0;
- } else {
- bit_size = get_type_size(base_type) * 8;
- }
-
- if (is_constant_expression(size) == EXPR_CLASS_CONSTANT) {
- long v = fold_constant_to_int(size);
- const symbol_t *user_symbol = symbol == NULL ? sym_anonymous : symbol;
-
- if (v < 0) {
- errorf(source_position, "negative width in bit-field '%Y'",
- user_symbol);
- } else if (v == 0 && symbol != NULL) {
- errorf(source_position, "zero width for bit-field '%Y'",
- user_symbol);
- } else if (bit_size > 0 && (il_size_t)v > bit_size) {
- errorf(source_position, "width of '%Y' exceeds its type",
- user_symbol);
- } else {
- type->bitfield.bit_size = v;
- }
- }
-
- return type;
+ POP_SCOPE();
}
static entity_t *find_compound_entry(compound_t *compound, symbol_t *symbol)
type_t *entry_type = entry->declaration.type;
type_t *res_type = get_qualified_type(entry_type, qualifiers);
+ /* bitfields need special treatment */
+ if (entry->compound_member.bitfield) {
+ unsigned bit_size = entry->compound_member.bit_size;
+ /* if fewer bits than an int, convert to int (see §6.3.1.1) */
+ if (bit_size < get_atomic_type_size(ATOMIC_TYPE_INT) * BITS_PER_BYTE) {
+ res_type = type_int;
+ }
+ }
+
/* we always do the auto-type conversions; the & and sizeof parser contains
* code to revert this! */
select->base.type = automatic_type_conversion(res_type);
- if (res_type->kind == TYPE_BITFIELD) {
- select->base.type = res_type->bitfield.base_type;
- }
+
return select;
}
expression_t *sub_addr = create_select(pos, addr, qualifiers, iter);
sub_addr->base.source_position = *pos;
- sub_addr->select.implicit = true;
+ sub_addr->base.implicit = true;
return find_create_select(pos, sub_addr, qualifiers, sub_compound,
symbol);
}
return NULL;
}
+static void parse_bitfield_member(entity_t *entity)
+{
+ eat(':');
+
+ expression_t *size = parse_constant_expression();
+ long size_long;
+
+ assert(entity->kind == ENTITY_COMPOUND_MEMBER);
+ type_t *type = entity->declaration.type;
+ if (!is_type_integer(skip_typeref(type))) {
+ errorf(HERE, "bitfield base type '%T' is not an integer type",
+ type);
+ }
+
+ if (is_constant_expression(size) != EXPR_CLASS_CONSTANT) {
+ /* error already reported by parse_constant_expression */
+ size_long = get_type_size(type) * 8;
+ } else {
+ size_long = fold_constant_to_int(size);
+
+ const symbol_t *symbol = entity->base.symbol;
+ const symbol_t *user_symbol
+ = symbol == NULL ? sym_anonymous : symbol;
+ unsigned bit_size = get_type_size(type) * 8;
+ if (size_long < 0) {
+ errorf(HERE, "negative width in bit-field '%Y'", user_symbol);
+ } else if (size_long == 0 && symbol != NULL) {
+ errorf(HERE, "zero width for bit-field '%Y'", user_symbol);
+ } else if (bit_size > 0 && (unsigned)size_long > bit_size) {
+ errorf(HERE, "width of bitfield '%Y' exceeds its type",
+ user_symbol);
+ } else {
+ /* hope that people don't invent crazy types with more bits
+ * than our struct can hold */
+ assert(size_long <
+ (1 << sizeof(entity->compound_member.bit_size)*8));
+ }
+ }
+
+ entity->compound_member.bitfield = true;
+ entity->compound_member.bit_size = (unsigned char)size_long;
+}
+
static void parse_compound_declarators(compound_t *compound,
const declaration_specifiers_t *specifiers)
{
do {
entity_t *entity;
- if (token.type == ':') {
- source_position_t source_position = *HERE;
- next_token();
-
- type_t *base_type = specifiers->type;
- expression_t *size = parse_constant_expression();
+ if (token.kind == ':') {
+ /* anonymous bitfield */
+ type_t *type = specifiers->type;
+ entity_t *entity = allocate_entity_zero(ENTITY_COMPOUND_MEMBER,
+ NAMESPACE_NORMAL, NULL);
+ entity->base.source_position = *HERE;
+ entity->declaration.declared_storage_class = STORAGE_CLASS_NONE;
+ entity->declaration.storage_class = STORAGE_CLASS_NONE;
+ entity->declaration.type = type;
- type_t *type = make_bitfield_type(base_type, size,
- &source_position, NULL);
+ parse_bitfield_member(entity);
attribute_t *attributes = parse_attributes(NULL);
attribute_t **anchor = &attributes;
while (*anchor != NULL)
anchor = &(*anchor)->next;
*anchor = specifiers->attributes;
-
- entity = allocate_entity_zero(ENTITY_COMPOUND_MEMBER, NAMESPACE_NORMAL, NULL);
- entity->base.source_position = source_position;
- entity->declaration.declared_storage_class = STORAGE_CLASS_NONE;
- entity->declaration.storage_class = STORAGE_CLASS_NONE;
- entity->declaration.type = type;
- entity->declaration.attributes = attributes;
-
if (attributes != NULL) {
handle_entity_attributes(attributes, entity);
}
+ entity->declaration.attributes = attributes;
+
append_entity(&compound->members, entity);
} else {
entity = parse_declarator(specifiers,
}
}
- if (token.type == ':') {
- source_position_t source_position = *HERE;
- next_token();
- expression_t *size = parse_constant_expression();
-
- type_t *type = entity->declaration.type;
- type_t *bitfield_type = make_bitfield_type(type, size,
- &source_position, entity->base.symbol);
+ if (token.kind == ':') {
+ parse_bitfield_member(entity);
attribute_t *attributes = parse_attributes(NULL);
- entity->declaration.type = bitfield_type;
handle_entity_attributes(attributes, entity);
} else {
type_t *orig_type = entity->declaration.type;
} else if (is_type_incomplete(type)) {
/* §6.7.2.1:16 flexible array member */
if (!is_type_array(type) ||
- token.type != ';' ||
- look_ahead(1)->type != '}') {
+ token.kind != ';' ||
+ look_ahead(1)->kind != '}') {
errorf(pos, "'%N' has incomplete type '%T'", entity, orig_type);
}
}
eat('{');
add_anchor_token('}');
- while (token.type != '}') {
- if (token.type == T_EOF) {
- errorf(HERE, "EOF while parsing struct");
- break;
+ for (;;) {
+ switch (token.kind) {
+ DECLARATION_START
+ case T___extension__:
+ case T_IDENTIFIER: {
+ PUSH_EXTENSION();
+ declaration_specifiers_t specifiers;
+ parse_declaration_specifiers(&specifiers);
+ parse_compound_declarators(compound, &specifiers);
+ POP_EXTENSION();
+ break;
+ }
+
+ default:
+ rem_anchor_token('}');
+ expect('}', end_error);
+end_error:
+ /* §6.7.2.1:7 */
+ compound->complete = true;
+ return;
}
- declaration_specifiers_t specifiers;
- parse_declaration_specifiers(&specifiers);
- parse_compound_declarators(compound, &specifiers);
}
- rem_anchor_token('}');
- next_token();
-
- /* §6.7.2.1:7 */
- compound->complete = true;
}
static type_t *parse_typename(void)
static expression_t *expected_expression_error(void)
{
/* skip the error message if the error token was read */
- if (token.type != T_ERROR) {
+ if (token.kind != T_ERROR) {
errorf(HERE, "expected expression, got token %K", &token);
}
next_token();
- return create_invalid_expression();
+ return create_error_expression();
}
static type_t *get_string_type(void)
*/
static expression_t *parse_string_literal(void)
{
- source_position_t begin = token.source_position;
- string_t res = token.literal;
- bool is_wide = (token.type == T_WIDE_STRING_LITERAL);
+ source_position_t begin = token.base.source_position;
+ string_t res = token.string.string;
+ bool is_wide = (token.kind == T_WIDE_STRING_LITERAL);
next_token();
- while (token.type == T_STRING_LITERAL
- || token.type == T_WIDE_STRING_LITERAL) {
- warn_string_concat(&token.source_position);
- res = concat_strings(&res, &token.literal);
+ while (token.kind == T_STRING_LITERAL
+ || token.kind == T_WIDE_STRING_LITERAL) {
+ warn_string_concat(&token.base.source_position);
+ res = concat_strings(&res, &token.string.string);
next_token();
- is_wide |= token.type == T_WIDE_STRING_LITERAL;
+ is_wide |= token.kind == T_WIDE_STRING_LITERAL;
}
expression_t *literal;
static expression_t *parse_boolean_literal(bool value)
{
expression_t *literal = allocate_expression_zero(EXPR_LITERAL_BOOLEAN);
- literal->base.source_position = token.source_position;
- literal->base.type = type_bool;
- literal->literal.value.begin = value ? "true" : "false";
- literal->literal.value.size = value ? 4 : 5;
+ literal->base.type = type_bool;
+ literal->literal.value.begin = value ? "true" : "false";
+ literal->literal.value.size = value ? 4 : 5;
next_token();
return literal;
static void warn_traditional_suffix(void)
{
- warningf(WARN_TRADITIONAL, HERE, "traditional C rejects the '%Y' suffix", token.symbol);
+ warningf(WARN_TRADITIONAL, HERE, "traditional C rejects the '%S' suffix",
+ &token.number.suffix);
}
static void check_integer_suffix(void)
{
- symbol_t *suffix = token.symbol;
- if (suffix == NULL)
+ const string_t *suffix = &token.number.suffix;
+ if (suffix->size == 0)
return;
bool not_traditional = false;
- const char *c = suffix->string;
+ const char *c = suffix->begin;
if (*c == 'l' || *c == 'L') {
++c;
if (*c == *(c-1)) {
}
}
if (*c != '\0') {
- errorf(&token.source_position,
- "invalid suffix '%s' on integer constant", suffix->string);
+ errorf(&token.base.source_position,
+ "invalid suffix '%S' on integer constant", suffix);
} else if (not_traditional) {
warn_traditional_suffix();
}
static type_t *check_floatingpoint_suffix(void)
{
- symbol_t *suffix = token.symbol;
- type_t *type = type_double;
- if (suffix == NULL)
+ const string_t *suffix = &token.number.suffix;
+ type_t *type = type_double;
+ if (suffix->size == 0)
return type;
bool not_traditional = false;
- const char *c = suffix->string;
+ const char *c = suffix->begin;
if (*c == 'f' || *c == 'F') {
++c;
type = type_float;
type = type_long_double;
}
if (*c != '\0') {
- errorf(&token.source_position,
- "invalid suffix '%s' on floatingpoint constant", suffix->string);
+ errorf(&token.base.source_position,
+ "invalid suffix '%S' on floatingpoint constant", suffix);
} else if (not_traditional) {
warn_traditional_suffix();
}
expression_kind_t kind;
type_t *type;
- switch (token.type) {
+ switch (token.kind) {
case T_INTEGER:
kind = EXPR_LITERAL_INTEGER;
check_integer_suffix();
}
expression_t *literal = allocate_expression_zero(kind);
- literal->base.source_position = token.source_position;
- literal->base.type = type;
- literal->literal.value = token.literal;
- literal->literal.suffix = token.symbol;
+ literal->base.type = type;
+ literal->literal.value = token.number.number;
+ literal->literal.suffix = token.number.suffix;
next_token();
/* integer type depends on the size of the number and the size
static expression_t *parse_character_constant(void)
{
expression_t *literal = allocate_expression_zero(EXPR_LITERAL_CHARACTER);
- literal->base.source_position = token.source_position;
- literal->base.type = c_mode & _CXX ? type_char : type_int;
- literal->literal.value = token.literal;
+ literal->base.type = c_mode & _CXX ? type_char : type_int;
+ literal->literal.value = token.string.string;
size_t len = literal->literal.value.size;
if (len > 1) {
static expression_t *parse_wide_character_constant(void)
{
expression_t *literal = allocate_expression_zero(EXPR_LITERAL_WIDE_CHARACTER);
- literal->base.source_position = token.source_position;
- literal->base.type = type_int;
- literal->literal.value = token.literal;
+ literal->base.type = type_int;
+ literal->literal.value = token.string.string;
size_t len = wstrlen(&literal->literal.value);
if (len > 1) {
entity_t *entity = expression->select.compound_entry;
assert(is_declaration(entity));
type_t *type = entity->declaration.type;
- return get_qualified_type(type,
- expression->base.type->base.qualifiers);
+ return get_qualified_type(type, expression->base.type->base.qualifiers);
}
case EXPR_UNARY_DEREFERENCE: {
entity_t *entity;
while (true) {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing identifier", T_IDENTIFIER, NULL);
return create_error_entity(sym_anonymous, ENTITY_VARIABLE);
}
- symbol = token.symbol;
+ symbol = token.identifier.symbol;
pos = *HERE;
next_token();
}
if (entity == NULL) {
- if (!strict_mode && token.type == '(') {
+ if (!strict_mode && token.kind == '(') {
/* an implicitly declared function */
- warningf(WARN_IMPLICIT_FUNCTION_DECLARATION, &pos, "implicit declaration of function '%Y'", symbol);
+ warningf(WARN_IMPLICIT_FUNCTION_DECLARATION, &pos,
+ "implicit declaration of function '%Y'", symbol);
entity = create_implicit_function(symbol, &pos);
} else {
errorf(&pos, "unknown identifier '%Y' found.", symbol);
static expression_t *parse_reference(void)
{
- source_position_t const pos = token.source_position;
+ source_position_t const pos = token.base.source_position;
entity_t *const entity = parse_qualified_identifier();
type_t *orig_type;
check_deprecated(&pos, entity);
- if (entity == current_init_decl && !in_type_prop && entity->kind == ENTITY_VARIABLE) {
- current_init_decl = NULL;
- warningf(WARN_INIT_SELF, &pos, "variable '%#N' is initialized by itself", entity);
- }
-
return expression;
}
return true;
}
-static expression_t *parse_compound_literal(type_t *type)
+static expression_t *parse_compound_literal(source_position_t const *const pos, type_t *type)
{
expression_t *expression = allocate_expression_zero(EXPR_COMPOUND_LITERAL);
+ expression->base.source_position = *pos;
parse_initializer_env_t env;
env.type = type;
*/
static expression_t *parse_cast(void)
{
- source_position_t source_position = token.source_position;
+ source_position_t const pos = *HERE;
eat('(');
add_anchor_token(')');
rem_anchor_token(')');
expect(')', end_error);
- if (token.type == '{') {
- return parse_compound_literal(type);
+ if (token.kind == '{') {
+ return parse_compound_literal(&pos, type);
}
expression_t *cast = allocate_expression_zero(EXPR_UNARY_CAST);
- cast->base.source_position = source_position;
+ cast->base.source_position = pos;
expression_t *value = parse_subexpression(PREC_CAST);
cast->base.type = type;
return cast;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
static expression_t *parse_parenthesized_expression(void)
{
token_t const* const la1 = look_ahead(1);
- switch (la1->type) {
+ switch (la1->kind) {
case '{':
/* gcc extension: a statement expression */
return parse_statement_expression();
case T_IDENTIFIER:
- if (is_typedef_symbol(la1->symbol)) {
+ if (is_typedef_symbol(la1->identifier.symbol)) {
DECLARATION_START
return parse_cast();
}
designator_t *result = allocate_ast_zero(sizeof(result[0]));
result->source_position = *HERE;
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing member designator",
T_IDENTIFIER, NULL);
return NULL;
}
- result->symbol = token.symbol;
+ result->symbol = token.identifier.symbol;
next_token();
designator_t *last_designator = result;
while (true) {
if (next_if('.')) {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing member designator",
T_IDENTIFIER, NULL);
return NULL;
}
designator_t *designator = allocate_ast_zero(sizeof(result[0]));
designator->source_position = *HERE;
- designator->symbol = token.symbol;
+ designator->symbol = token.identifier.symbol;
next_token();
last_designator->next = designator;
descend_into_subtype(&path);
if (!walk_designator(&path, designator, true)) {
- return create_invalid_expression();
+ return create_error_expression();
}
DEL_ARR_F(path.path);
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
}
expect(')', end_error);
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
{
expression_t *expression;
- switch (token.type) {
+ switch (token.kind) {
case T___builtin_isgreater:
expression = allocate_expression_zero(EXPR_BINARY_ISGREATER);
break;
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
expression->base.type = type_void;
return expression;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
*/
static label_t *get_label(void)
{
- assert(token.type == T_IDENTIFIER);
+ assert(token.kind == T_IDENTIFIER);
assert(current_function != NULL);
- entity_t *label = get_entity(token.symbol, NAMESPACE_LABEL);
+ entity_t *label = get_entity(token.identifier.symbol, NAMESPACE_LABEL);
/* If we find a local label, we already created the declaration. */
if (label != NULL && label->kind == ENTITY_LOCAL_LABEL) {
if (label->base.parent_scope != current_scope) {
}
} else if (label == NULL || label->base.parent_scope != ¤t_function->parameters) {
/* There is no matching label in the same function, so create a new one. */
- label = allocate_entity_zero(ENTITY_LABEL, NAMESPACE_LABEL, token.symbol);
+ label = allocate_entity_zero(ENTITY_LABEL, NAMESPACE_LABEL, token.identifier.symbol);
label_push(label);
}
*/
static expression_t *parse_label_address(void)
{
- source_position_t source_position = token.source_position;
+ source_position_t source_position = token.base.source_position;
eat(T_ANDAND);
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing label address", T_IDENTIFIER, NULL);
- return create_invalid_expression();
+ return create_error_expression();
}
label_t *const label = get_label();
{
/* the result is a (int)0 */
expression_t *literal = allocate_expression_zero(EXPR_LITERAL_MS_NOOP);
- literal->base.type = type_int;
- literal->base.source_position = token.source_position;
- literal->literal.value.begin = "__noop";
- literal->literal.value.size = 6;
+ literal->base.type = type_int;
+ literal->literal.value.begin = "__noop";
+ literal->literal.value.size = 6;
eat(T___noop);
- if (token.type == '(') {
+ if (token.kind == '(') {
/* parse arguments */
eat('(');
add_anchor_token(')');
add_anchor_token(',');
- if (token.type != ')') do {
+ if (token.kind != ')') do {
(void)parse_assignment_expression();
} while (next_if(','));
}
*/
static expression_t *parse_primary_expression(void)
{
- switch (token.type) {
+ switch (token.kind) {
case T_false: return parse_boolean_literal(false);
case T_true: return parse_boolean_literal(true);
case T_INTEGER:
case T_COLONCOLON:
return parse_reference();
case T_IDENTIFIER:
- if (!is_typedef_symbol(token.symbol)) {
+ if (!is_typedef_symbol(token.identifier.symbol)) {
return parse_reference();
}
/* FALLTHROUGH */
parse_declaration_specifiers(&specifiers);
type_t const *const type = parse_abstract_declarator(specifiers.type);
errorf(&pos, "encountered type '%T' while parsing expression", type);
- return create_invalid_expression();
+ return create_error_expression();
}
}
errorf(HERE, "unexpected token %K, expected an expression", &token);
eat_until_anchor();
- return create_invalid_expression();
+ return create_error_expression();
}
static expression_t *parse_array_expression(expression_t *left)
return expr;
}
+static bool is_bitfield(const expression_t *expression)
+{
+ return expression->kind == EXPR_SELECT
+ && expression->select.compound_entry->compound_member.bitfield;
+}
+
static expression_t *parse_typeprop(expression_kind_t const kind)
{
expression_t *tp_expression = allocate_expression_zero(kind);
eat(kind == EXPR_SIZEOF ? T_sizeof : T___alignof__);
- /* we only refer to a type property, mark this case */
- bool old = in_type_prop;
- in_type_prop = true;
-
type_t *orig_type;
expression_t *expression;
- if (token.type == '(' && is_declaration_specifier(look_ahead(1))) {
+ if (token.kind == '(' && is_declaration_specifier(look_ahead(1))) {
+ source_position_t const pos = *HERE;
next_token();
add_anchor_token(')');
orig_type = parse_typename();
rem_anchor_token(')');
expect(')', end_error);
- if (token.type == '{') {
+ if (token.kind == '{') {
/* It was not sizeof(type) after all. It is sizeof of an expression
* starting with a compound literal */
- expression = parse_compound_literal(orig_type);
+ expression = parse_compound_literal(&pos, orig_type);
goto typeprop_expression;
}
} else {
expression = parse_subexpression(PREC_UNARY);
typeprop_expression:
+ if (is_bitfield(expression)) {
+ char const* const what = kind == EXPR_SIZEOF ? "sizeof" : "alignof";
+ errorf(&tp_expression->base.source_position,
+ "operand of %s expression must not be a bitfield", what);
+ }
+
tp_expression->typeprop.tp_expression = expression;
orig_type = revert_automatic_type_conversion(expression);
} else {
wrong_type = "function";
}
- } else {
- if (is_type_incomplete(type))
- wrong_type = "incomplete";
}
- if (type->kind == TYPE_BITFIELD)
- wrong_type = "bitfield";
if (wrong_type != NULL) {
char const* const what = kind == EXPR_SIZEOF ? "sizeof" : "alignof";
}
end_error:
- in_type_prop = old;
return tp_expression;
}
static expression_t *parse_select_expression(expression_t *addr)
{
- assert(token.type == '.' || token.type == T_MINUSGREATER);
- bool select_left_arrow = (token.type == T_MINUSGREATER);
+ assert(token.kind == '.' || token.kind == T_MINUSGREATER);
+ bool select_left_arrow = (token.kind == T_MINUSGREATER);
source_position_t const pos = *HERE;
next_token();
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing select", T_IDENTIFIER, NULL);
- return create_invalid_expression();
+ return create_error_expression();
}
- symbol_t *symbol = token.symbol;
+ symbol_t *symbol = token.identifier.symbol;
next_token();
type_t *const orig_type = addr->base.type;
"request for member '%Y' in something not a struct or union, but '%T'",
symbol, type_left);
}
- return create_invalid_expression();
+ return create_error_expression();
}
compound_t *compound = type_left->compound.compound;
if (!compound->complete) {
errorf(&pos, "request for member '%Y' in incomplete type '%T'",
symbol, type_left);
- return create_invalid_expression();
+ return create_error_expression();
}
type_qualifiers_t qualifiers = type_left->base.qualifiers;
if (result == NULL) {
errorf(&pos, "'%T' has no member named '%Y'", orig_type, symbol);
- return create_invalid_expression();
+ return create_error_expression();
}
return result;
/**
* Handle the semantic restrictions of builtin calls
*/
-static void handle_builtin_argument_restrictions(call_expression_t *call) {
- switch (call->function->reference.entity->function.btk) {
- case bk_gnu_builtin_return_address:
- case bk_gnu_builtin_frame_address: {
+static void handle_builtin_argument_restrictions(call_expression_t *call)
+{
+ entity_t *entity = call->function->reference.entity;
+ switch (entity->function.btk) {
+ case BUILTIN_FIRM:
+ switch (entity->function.b.firm_builtin_kind) {
+ case ir_bk_return_address:
+ case ir_bk_frame_address: {
/* argument must be constant */
call_argument_t *argument = call->arguments;
if (is_constant_expression(argument->expression) == EXPR_CLASS_VARIABLE) {
errorf(&call->base.source_position,
- "argument of '%Y' must be a constant expression",
- call->function->reference.entity->base.symbol);
- }
- break;
- }
- case bk_gnu_builtin_object_size:
- if (call->arguments == NULL)
- break;
-
- call_argument_t *arg = call->arguments->next;
- if (arg != NULL && is_constant_expression(arg->expression) == EXPR_CLASS_VARIABLE) {
- errorf(&call->base.source_position,
- "second argument of '%Y' must be a constant expression",
+ "argument of '%Y' must be a constant expression",
call->function->reference.entity->base.symbol);
}
break;
- case bk_gnu_builtin_prefetch:
+ }
+ case ir_bk_prefetch:
/* second and third argument must be constant if existent */
if (call->arguments == NULL)
break;
if (rw != NULL) {
if (is_constant_expression(rw->expression) == EXPR_CLASS_VARIABLE) {
errorf(&call->base.source_position,
- "second argument of '%Y' must be a constant expression",
- call->function->reference.entity->base.symbol);
+ "second argument of '%Y' must be a constant expression",
+ call->function->reference.entity->base.symbol);
}
locality = rw->next;
}
if (locality != NULL) {
if (is_constant_expression(locality->expression) == EXPR_CLASS_VARIABLE) {
errorf(&call->base.source_position,
- "third argument of '%Y' must be a constant expression",
- call->function->reference.entity->base.symbol);
+ "third argument of '%Y' must be a constant expression",
+ call->function->reference.entity->base.symbol);
}
locality = rw->next;
}
break;
default:
break;
+ }
+
+ case BUILTIN_OBJECT_SIZE:
+ if (call->arguments == NULL)
+ break;
+
+ call_argument_t *arg = call->arguments->next;
+ if (arg != NULL && is_constant_expression(arg->expression) == EXPR_CLASS_VARIABLE) {
+ errorf(&call->base.source_position,
+ "second argument of '%Y' must be a constant expression",
+ call->function->reference.entity->base.symbol);
+ }
+ break;
+ default:
+ break;
}
}
add_anchor_token(')');
add_anchor_token(',');
- if (token.type != ')') {
+ if (token.kind != ')') {
call_argument_t **anchor = &call->arguments;
do {
call_argument_t *argument = allocate_ast_zero(sizeof(*argument));
if (expression->kind == EXPR_REFERENCE) {
reference_expression_t *reference = &expression->reference;
if (reference->entity->kind == ENTITY_FUNCTION &&
- reference->entity->function.btk != bk_none)
+ reference->entity->function.btk != BUILTIN_NONE)
handle_builtin_argument_restrictions(call);
}
expression_t *true_expression = expression;
bool gnu_cond = false;
- if (GNU_MODE && token.type == ':') {
+ if (GNU_MODE && token.kind == ':') {
gnu_cond = true;
} else {
true_expression = parse_expression();
*/
static expression_t *parse_extension(void)
{
- eat(T___extension__);
-
- bool old_gcc_extension = in_gcc_extension;
- in_gcc_extension = true;
+ PUSH_EXTENSION();
expression_t *expression = parse_subexpression(PREC_UNARY);
- in_gcc_extension = old_gcc_extension;
+ POP_EXTENSION();
return expression;
}
return result;
end_error:
- return create_invalid_expression();
+ return create_error_expression();
}
/**
eat(T_throw);
expression_t *value = NULL;
- switch (token.type) {
+ switch (token.kind) {
EXPRESSION_START {
value = parse_assignment_expression();
/* ISO/IEC 14882:1998(E) §15.1:3 */
expression->base.type = orig_type;
}
+static void promote_unary_int_expr(unary_expression_t *const expr, type_t *const type)
+{
+ type_t *const res_type = promote_integer(type);
+ expr->base.type = res_type;
+ expr->value = create_implicit_cast(expr->value, res_type);
+}
+
static void semantic_unexpr_arithmetic(unary_expression_t *expression)
{
type_t *const orig_type = expression->value->base.type;
"operation needs an arithmetic type");
}
return;
+ } else if (is_type_integer(type)) {
+ promote_unary_int_expr(expression, type);
+ } else {
+ expression->base.type = orig_type;
}
-
- expression->base.type = orig_type;
}
static void semantic_unexpr_plus(unary_expression_t *expression)
return;
}
- expression->base.type = orig_type;
+ promote_unary_int_expr(expression, type);
}
static void semantic_dereference(unary_expression_t *expression)
if (!is_lvalue(value)) {
errorf(&expression->base.source_position, "'&' requires an lvalue");
}
- if (type->kind == TYPE_BITFIELD) {
+ if (is_bitfield(value)) {
errorf(&expression->base.source_position,
- "'&' not allowed on object with bitfield type '%T'",
- type);
+ "'&' not allowed on bitfield");
}
set_address_taken(value, false);
expression->base.type = make_pointer_type(orig_type, TYPE_QUALIFIER_NONE);
}
-#define CREATE_UNARY_EXPRESSION_PARSER(token_type, unexpression_type, sfunc) \
+#define CREATE_UNARY_EXPRESSION_PARSER(token_kind, unexpression_type, sfunc) \
static expression_t *parse_##unexpression_type(void) \
{ \
expression_t *unary_expression \
= allocate_expression_zero(unexpression_type); \
- eat(token_type); \
+ eat(token_kind); \
unary_expression->unary.value = parse_subexpression(PREC_UNARY); \
\
sfunc(&unary_expression->unary); \
CREATE_UNARY_EXPRESSION_PARSER(T_MINUSMINUS, EXPR_UNARY_PREFIX_DECREMENT,
semantic_incdec)
-#define CREATE_UNARY_POSTFIX_EXPRESSION_PARSER(token_type, unexpression_type, \
+#define CREATE_UNARY_POSTFIX_EXPRESSION_PARSER(token_kind, unexpression_type, \
sfunc) \
static expression_t *parse_##unexpression_type(expression_t *left) \
{ \
expression_t *unary_expression \
= allocate_expression_zero(unexpression_type); \
- eat(token_type); \
+ eat(token_kind); \
unary_expression->unary.value = left; \
\
sfunc(&unary_expression->unary); \
if (type_left == type_right)
return type_left;
- bool const signed_left = is_type_signed(type_left);
- bool const signed_right = is_type_signed(type_right);
- int const rank_left = get_rank(type_left);
- int const rank_right = get_rank(type_right);
+ bool const signed_left = is_type_signed(type_left);
+ bool const signed_right = is_type_signed(type_right);
+ unsigned const rank_left = get_akind_rank(get_akind(type_left));
+ unsigned const rank_right = get_akind_rank(get_akind(type_right));
if (signed_left == signed_right)
return rank_left >= rank_right ? type_left : type_right;
- int s_rank;
- int u_rank;
+ unsigned s_rank;
+ unsigned u_rank;
+ atomic_type_kind_t s_akind;
+ atomic_type_kind_t u_akind;
type_t *s_type;
type_t *u_type;
if (signed_left) {
- s_rank = rank_left;
s_type = type_left;
- u_rank = rank_right;
u_type = type_right;
} else {
- s_rank = rank_right;
s_type = type_right;
- u_rank = rank_left;
u_type = type_left;
}
+ s_akind = get_akind(s_type);
+ u_akind = get_akind(u_type);
+ s_rank = get_akind_rank(s_akind);
+ u_rank = get_akind_rank(u_akind);
if (u_rank >= s_rank)
return u_type;
- /* casting rank to atomic_type_kind is a bit hacky, but makes things
- * easier here... */
- if (get_atomic_type_size((atomic_type_kind_t) s_rank)
- > get_atomic_type_size((atomic_type_kind_t) u_rank))
+ if (get_atomic_type_size(s_akind) > get_atomic_type_size(u_akind))
return s_type;
- switch (s_rank) {
- case ATOMIC_TYPE_INT: return type_unsigned_int;
- case ATOMIC_TYPE_LONG: return type_unsigned_long;
- case ATOMIC_TYPE_LONGLONG: return type_unsigned_long_long;
+ switch (s_akind) {
+ case ATOMIC_TYPE_INT: return type_unsigned_int;
+ case ATOMIC_TYPE_LONG: return type_unsigned_long;
+ case ATOMIC_TYPE_LONGLONG: return type_unsigned_long_long;
- default: panic("invalid atomic type");
+ default: panic("invalid atomic type");
}
}
{
switch (is_constant_expression(expr)) {
case EXPR_CLASS_ERROR: return false;
- case EXPR_CLASS_CONSTANT: return fold_constant_to_int(expr) < 0;
+ case EXPR_CLASS_CONSTANT: return constant_is_negative(expr);
default: return true;
}
}
static bool expression_has_effect(const expression_t *const expr)
{
switch (expr->kind) {
- case EXPR_UNKNOWN: break;
- case EXPR_INVALID: return true; /* do NOT warn */
+ case EXPR_ERROR: return true; /* do NOT warn */
case EXPR_REFERENCE: return false;
case EXPR_REFERENCE_ENUM_VALUE: return false;
case EXPR_LABEL_ADDRESS: return false;
return is_type_atomic(type, ATOMIC_TYPE_VOID);
}
- case EXPR_UNARY_CAST_IMPLICIT: return true;
case EXPR_UNARY_ASSUME: return true;
case EXPR_UNARY_DELETE: return true;
case EXPR_UNARY_DELETE_ARRAY: return true;
/**
* @param prec_r precedence of the right operand
*/
-#define CREATE_BINEXPR_PARSER(token_type, binexpression_type, prec_r, sfunc) \
+#define CREATE_BINEXPR_PARSER(token_kind, binexpression_type, prec_r, sfunc) \
static expression_t *parse_##binexpression_type(expression_t *left) \
{ \
expression_t *binexpr = allocate_expression_zero(binexpression_type); \
binexpr->binary.left = left; \
- eat(token_type); \
+ eat(token_kind); \
\
expression_t *right = parse_subexpression(prec_r); \
\
static expression_t *parse_subexpression(precedence_t precedence)
{
- if (token.type < 0) {
+ if (token.kind < 0) {
return expected_expression_error();
}
expression_parser_function_t *parser
- = &expression_parsers[token.type];
- source_position_t source_position = token.source_position;
+ = &expression_parsers[token.kind];
expression_t *left;
if (parser->parser != NULL) {
left = parse_primary_expression();
}
assert(left != NULL);
- left->base.source_position = source_position;
while (true) {
- if (token.type < 0) {
+ if (token.kind < 0) {
return expected_expression_error();
}
- parser = &expression_parsers[token.type];
+ parser = &expression_parsers[token.kind];
if (parser->infix_parser == NULL)
break;
if (parser->infix_precedence < precedence)
left = parser->infix_parser(left);
assert(left != NULL);
- assert(left->kind != EXPR_UNKNOWN);
- left->base.source_position = source_position;
}
return left;
* Register a parser for a prefix-like operator.
*
* @param parser the parser function
- * @param token_type the token type of the prefix token
+ * @param token_kind the token type of the prefix token
*/
static void register_expression_parser(parse_expression_function parser,
- int token_type)
+ int token_kind)
{
- expression_parser_function_t *entry = &expression_parsers[token_type];
+ expression_parser_function_t *entry = &expression_parsers[token_kind];
if (entry->parser != NULL) {
- diagnosticf("for token '%k'\n", (token_type_t)token_type);
+ diagnosticf("for token '%k'\n", (token_kind_t)token_kind);
panic("trying to register multiple expression parsers for a token");
}
entry->parser = parser;
* Register a parser for an infix operator with given precedence.
*
* @param parser the parser function
- * @param token_type the token type of the infix operator
+ * @param token_kind the token type of the infix operator
* @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_kind, precedence_t precedence)
{
- expression_parser_function_t *entry = &expression_parsers[token_type];
+ expression_parser_function_t *entry = &expression_parsers[token_kind];
if (entry->infix_parser != NULL) {
- diagnosticf("for token '%k'\n", (token_type_t)token_type);
+ diagnosticf("for token '%k'\n", (token_kind_t)token_kind);
panic("trying to register multiple infix expression parsers for a "
"token");
}
asm_argument_t *result = NULL;
asm_argument_t **anchor = &result;
- while (token.type == T_STRING_LITERAL || token.type == '[') {
+ while (token.kind == T_STRING_LITERAL || token.kind == '[') {
asm_argument_t *argument = allocate_ast_zero(sizeof(argument[0]));
memset(argument, 0, sizeof(argument[0]));
if (next_if('[')) {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing asm argument",
T_IDENTIFIER, NULL);
return NULL;
}
- argument->symbol = token.symbol;
+ argument->symbol = token.identifier.symbol;
expect(']', end_error);
}
size = get_atomic_type_size(akind);
} else {
flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC;
- size = get_atomic_type_size(get_intptr_kind());
+ size = get_type_size(type_void_ptr);
}
do {
value_size = get_atomic_type_size(value_akind);
} else if (value_kind == TYPE_POINTER) {
value_flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC;
- value_size = get_atomic_type_size(get_intptr_kind());
+ value_size = get_type_size(type_void_ptr);
} else {
break;
}
asm_clobber_t *result = NULL;
asm_clobber_t **anchor = &result;
- while (token.type == T_STRING_LITERAL) {
+ while (token.kind == T_STRING_LITERAL) {
asm_clobber_t *clobber = allocate_ast_zero(sizeof(clobber[0]));
clobber->clobber = parse_string_literals();
expect('(', end_error);
add_anchor_token(')');
- if (token.type != T_STRING_LITERAL) {
+ if (token.kind != T_STRING_LITERAL) {
parse_error_expected("after asm(", T_STRING_LITERAL, NULL);
goto end_of_asm;
}
return statement;
end_error:
- return create_invalid_statement();
+ return create_error_statement();
}
static statement_t *parse_label_inner_statement(statement_t const *const label, char const *const label_kind)
{
statement_t *inner_stmt;
- switch (token.type) {
+ switch (token.kind) {
case '}':
errorf(&label->base.source_position, "%s at end of compound statement", label_kind);
- inner_stmt = create_invalid_statement();
+ inner_stmt = create_error_statement();
break;
case ';':
default:
inner_stmt = parse_statement();
- /* ISO/IEC 14882:1998(E) §6:1/§6.7 Declarations are statements */
+ /* ISO/IEC 9899:1999(E) §6.8:1/6.8.2:1 Declarations are no statements */
+ /* 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);
}
statement->case_label.statement = parse_label_inner_statement(statement, "case label");
- POP_PARENT;
+ POP_PARENT();
return statement;
}
statement->case_label.statement = parse_label_inner_statement(statement, "default label");
- POP_PARENT;
+ POP_PARENT();
return statement;
}
eat(':');
+ if (token.kind == T___attribute__ && !(c_mode & _CXX)) {
+ parse_attributes(NULL); // TODO process attributes
+ }
+
statement->label.statement = parse_label_inner_statement(statement, "label");
/* remember the labels in a list for later checking */
*label_anchor = &statement->label;
label_anchor = &statement->label.next;
- POP_PARENT;
+ POP_PARENT();
return statement;
}
+static statement_t *parse_inner_statement(void)
+{
+ statement_t *const stmt = parse_statement();
+ /* ISO/IEC 9899:1999(E) §6.8:1/6.8.2:1 Declarations are no statements */
+ /* ISO/IEC 14882:1998(E) §6:1/§6.7 Declarations are statements */
+ if (stmt->kind == STATEMENT_DECLARATION && !(c_mode & _CXX)) {
+ errorf(&stmt->base.source_position, "declaration as inner statement, use {}");
+ }
+ return stmt;
+}
+
/**
* Parse an if statement.
*/
rem_anchor_token('{');
add_anchor_token(T_else);
- statement_t *const true_stmt = parse_statement();
+ statement_t *const true_stmt = parse_inner_statement();
statement->ifs.true_statement = true_stmt;
rem_anchor_token(T_else);
+ if (true_stmt->kind == STATEMENT_EMPTY) {
+ warningf(WARN_EMPTY_BODY, HERE,
+ "suggest braces around empty body in an ‘if’ statement");
+ }
+
if (next_if(T_else)) {
- statement->ifs.false_statement = parse_statement();
+ statement->ifs.false_statement = parse_inner_statement();
+
+ if (statement->ifs.false_statement->kind == STATEMENT_EMPTY) {
+ warningf(WARN_EMPTY_BODY, HERE,
+ "suggest braces around empty body in an ‘if’ statement");
+ }
} else if (true_stmt->kind == STATEMENT_IF &&
true_stmt->ifs.false_statement != NULL) {
source_position_t const *const pos = &true_stmt->base.source_position;
warningf(WARN_PARENTHESES, pos, "suggest explicit braces to avoid ambiguous 'else'");
}
- POP_PARENT;
+ POP_PARENT();
return statement;
}
type_t * type = skip_typeref(expr->base.type);
if (is_type_integer(type)) {
type = promote_integer(type);
- if (get_rank(type) >= get_akind_rank(ATOMIC_TYPE_LONG)) {
+ if (get_akind_rank(get_akind(type)) >= get_akind_rank(ATOMIC_TYPE_LONG)) {
warningf(WARN_TRADITIONAL, &expr->base.source_position, "'%T' switch expression not converted to '%T' in ISO C", type, type_int);
}
} else if (is_type_valid(type)) {
switch_statement_t *rem = current_switch;
current_switch = &statement->switchs;
- statement->switchs.body = parse_statement();
+ statement->switchs.body = parse_inner_statement();
current_switch = rem;
if (statement->switchs.default_label == NULL) {
}
check_enum_cases(&statement->switchs);
- POP_PARENT;
+ POP_PARENT();
return statement;
end_error:
- POP_PARENT;
- return create_invalid_statement();
+ POP_PARENT();
+ return create_error_statement();
}
static statement_t *parse_loop_body(statement_t *const loop)
statement_t *const rem = current_loop;
current_loop = loop;
- statement_t *const body = parse_statement();
+ statement_t *const body = parse_inner_statement();
current_loop = rem;
return body;
statement->whiles.body = parse_loop_body(statement);
- POP_PARENT;
+ POP_PARENT();
return statement;
end_error:
- POP_PARENT;
- return create_invalid_statement();
+ POP_PARENT();
+ return create_error_statement();
}
/**
expect(')', end_error);
expect(';', end_error);
- POP_PARENT;
+ POP_PARENT();
return statement;
end_error:
- POP_PARENT;
- return create_invalid_statement();
+ POP_PARENT();
+ return create_error_statement();
}
/**
add_anchor_token(')');
PUSH_PARENT(statement);
+ PUSH_SCOPE(&statement->fors.scope);
- size_t const top = environment_top();
- scope_t *old_scope = scope_push(&statement->fors.scope);
-
- bool old_gcc_extension = in_gcc_extension;
- while (next_if(T___extension__)) {
- in_gcc_extension = true;
- }
+ PUSH_EXTENSION();
if (next_if(';')) {
} else if (is_declaration_specifier(&token)) {
rem_anchor_token(';');
expect(';', end_error2);
}
- in_gcc_extension = old_gcc_extension;
- if (token.type != ';') {
+ POP_EXTENSION();
+
+ if (token.kind != ';') {
add_anchor_token(';');
expression_t *const cond = parse_expression();
statement->fors.condition = cond;
rem_anchor_token(';');
}
expect(';', end_error2);
- if (token.type != ')') {
+ if (token.kind != ')') {
expression_t *const step = parse_expression();
statement->fors.step = step;
mark_vars_read(step, ENT_ANY);
rem_anchor_token(')');
statement->fors.body = parse_loop_body(statement);
- assert(current_scope == &statement->fors.scope);
- scope_pop(old_scope);
- environment_pop_to(top);
-
- POP_PARENT;
+ POP_SCOPE();
+ POP_PARENT();
return statement;
end_error2:
- POP_PARENT;
+ POP_PARENT();
rem_anchor_token(')');
- assert(current_scope == &statement->fors.scope);
- scope_pop(old_scope);
- environment_pop_to(top);
+ POP_SCOPE();
/* fallthrough */
end_error1:
- return create_invalid_statement();
+ return create_error_statement();
}
/**
}
statement->gotos.expression = expression;
- } else if (token.type == T_IDENTIFIER) {
+ } else if (token.kind == T_IDENTIFIER) {
label_t *const label = get_label();
label->used = true;
statement->gotos.label = label;
else
parse_error_expected("while parsing goto", T_IDENTIFIER, NULL);
eat_until_anchor();
- return create_invalid_statement();
+ return create_error_statement();
}
/* remember the goto's in a list for later checking */
*/
static statement_t *parse_return(void)
{
- eat(T_return);
-
statement_t *statement = allocate_statement_zero(STATEMENT_RETURN);
+ eat(T_return);
expression_t *return_value = NULL;
- if (token.type != ';') {
+ if (token.kind != ';') {
return_value = parse_expression();
mark_vars_read(return_value, NULL);
}
statement->ms_try.try_statement = parse_compound_statement(false);
current_try = rem;
- POP_PARENT;
+ POP_PARENT();
if (next_if(T___except)) {
expect('(', end_error);
statement->ms_try.final_statement = parse_compound_statement(false);
} else {
parse_error_expected("while parsing __try statement", T___except, T___finally, NULL);
- return create_invalid_statement();
+ return create_error_statement();
}
return statement;
end_error:
- return create_invalid_statement();
+ return create_error_statement();
}
static statement_t *parse_empty_statement(void)
entity_t *end = NULL;
entity_t **anchor = &begin;
do {
- if (token.type != T_IDENTIFIER) {
+ if (token.kind != T_IDENTIFIER) {
parse_error_expected("while parsing local label declaration",
T_IDENTIFIER, NULL);
goto end_error;
}
- symbol_t *symbol = token.symbol;
+ symbol_t *symbol = token.identifier.symbol;
entity_t *entity = get_entity(symbol, NAMESPACE_LABEL);
if (entity != NULL && entity->base.parent_scope == current_scope) {
source_position_t const *const ppos = &entity->base.source_position;
} else {
entity = allocate_entity_zero(ENTITY_LOCAL_LABEL, NAMESPACE_LABEL, symbol);
entity->base.parent_scope = current_scope;
- entity->base.source_position = token.source_position;
+ entity->base.source_position = token.base.source_position;
*anchor = entity;
anchor = &entity->base.next;
entity_t *entity = NULL;
symbol_t *symbol = NULL;
- if (token.type == T_IDENTIFIER) {
- symbol = token.symbol;
+ if (token.kind == T_IDENTIFIER) {
+ symbol = token.identifier.symbol;
next_token();
entity = get_entity(symbol, NAMESPACE_NORMAL);
&& entity->kind != ENTITY_NAMESPACE
&& entity->base.parent_scope == current_scope) {
if (is_entity_valid(entity)) {
- error_redefined_as_different_kind(&token.source_position,
+ error_redefined_as_different_kind(&token.base.source_position,
entity, ENTITY_NAMESPACE);
}
entity = NULL;
if (entity == NULL) {
entity = allocate_entity_zero(ENTITY_NAMESPACE, NAMESPACE_NORMAL, symbol);
- entity->base.source_position = token.source_position;
+ entity->base.source_position = token.base.source_position;
entity->base.parent_scope = current_scope;
}
- if (token.type == '=') {
+ if (token.kind == '=') {
/* TODO: parse namespace alias */
panic("namespace alias definition not supported yet");
}
environment_push(entity);
append_entity(current_scope, entity);
- size_t const top = environment_top();
- scope_t *old_scope = scope_push(&entity->namespacee.members);
+ PUSH_SCOPE(&entity->namespacee.members);
entity_t *old_current_entity = current_entity;
current_entity = entity;
expect('}', end_error);
end_error:
- assert(current_scope == &entity->namespacee.members);
assert(current_entity == entity);
current_entity = old_current_entity;
- scope_pop(old_scope);
- environment_pop_to(top);
+ POP_SCOPE();
}
/**
/* declaration or statement */
add_anchor_token(';');
- switch (token.type) {
+ switch (token.kind) {
case T_IDENTIFIER: {
- token_type_t la1_type = (token_type_t)look_ahead(1)->type;
+ token_kind_t la1_type = (token_kind_t)look_ahead(1)->kind;
if (la1_type == ':') {
statement = parse_label_statement();
- } else if (is_typedef_symbol(token.symbol)) {
+ } else if (is_typedef_symbol(token.identifier.symbol)) {
statement = parse_declaration_statement();
} else {
/* it's an identifier, the grammar says this must be an
switch (la1_type) {
case '&':
case '*':
- if (get_entity(token.symbol, NAMESPACE_NORMAL) != NULL) {
+ if (get_entity(token.identifier.symbol, NAMESPACE_NORMAL) != NULL) {
default:
statement = parse_expression_statement();
} else {
break;
}
- case T___extension__:
+ case T___extension__: {
/* This can be a prefix to a declaration or an expression statement.
* We simply eat it now and parse the rest with tail recursion. */
- while (next_if(T___extension__)) {}
- bool old_gcc_extension = in_gcc_extension;
- in_gcc_extension = true;
+ PUSH_EXTENSION();
statement = intern_parse_statement();
- in_gcc_extension = old_gcc_extension;
+ POP_EXTENSION();
break;
+ }
DECLARATION_START
statement = parse_declaration_statement();
default:
errorf(HERE, "unexpected token %K while parsing statement", &token);
- statement = create_invalid_statement();
+ statement = create_error_statement();
if (!at_anchor())
next_token();
break;
statement_t *statement = allocate_statement_zero(STATEMENT_COMPOUND);
PUSH_PARENT(statement);
+ PUSH_SCOPE(&statement->compound.scope);
eat('{');
add_anchor_token('}');
add_anchor_token(T_wchar_t);
add_anchor_token(T_while);
- size_t const top = environment_top();
- scope_t *old_scope = scope_push(&statement->compound.scope);
-
statement_t **anchor = &statement->compound.statements;
bool only_decls_so_far = true;
- while (token.type != '}') {
- if (token.type == T_EOF) {
+ while (token.kind != '}') {
+ if (token.kind == T_EOF) {
errorf(&statement->base.source_position,
"EOF while parsing compound statement");
break;
}
statement_t *sub_statement = intern_parse_statement();
- if (is_invalid_statement(sub_statement)) {
+ if (sub_statement->kind == STATEMENT_ERROR) {
/* an error occurred. if we are at an anchor, return */
if (at_anchor())
goto end_error;
rem_anchor_token('&');
rem_anchor_token('!');
rem_anchor_token('}');
- assert(current_scope == &statement->compound.scope);
- scope_pop(old_scope);
- environment_pop_to(top);
- POP_PARENT;
+ POP_SCOPE();
+ POP_PARENT();
return statement;
}
linkage_kind_t old_linkage = current_linkage;
linkage_kind_t new_linkage;
- if (strcmp(linkage, "C") == 0) {
+ if (streq(linkage, "C")) {
new_linkage = LINKAGE_C;
- } else if (strcmp(linkage, "C++") == 0) {
+ } else if (streq(linkage, "C++")) {
new_linkage = LINKAGE_CXX;
} else {
errorf(&pos, "linkage string \"%s\" not recognized", linkage);
- new_linkage = LINKAGE_INVALID;
+ new_linkage = LINKAGE_C;
}
current_linkage = new_linkage;
static void parse_external(void)
{
- switch (token.type) {
+ switch (token.kind) {
+ case T_extern:
+ if (look_ahead(1)->kind == T_STRING_LITERAL) {
+ parse_linkage_specification();
+ } else {
DECLARATION_START_NO_EXTERN
case T_IDENTIFIER:
case T___extension__:
/* tokens below are for implicit int */
- case '&': /* & x; -> int& x; (and error later, because C++ has no
- implicit int) */
- case '*': /* * x; -> int* x; */
- case '(': /* (x); -> int (x); */
- parse_external_declaration();
- return;
-
- case T_extern:
- if (look_ahead(1)->type == T_STRING_LITERAL) {
- parse_linkage_specification();
- } else {
+ case '&': /* & x; -> int& x; (and error later, because C++ has no
+ implicit int) */
+ case '*': /* * x; -> int* x; */
+ case '(': /* (x); -> int (x); */
+ PUSH_EXTENSION();
parse_external_declaration();
+ POP_EXTENSION();
}
return;
case ';':
if (!strict_mode) {
- warningf(WARN_OTHER, HERE, "stray ';' outside of function");
+ warningf(WARN_STRAY_SEMICOLON, HERE, "stray ';' outside of function");
next_token();
return;
}
default:
errorf(HERE, "stray %K outside of function", &token);
- if (token.type == '(' || token.type == '{' || token.type == '[')
- eat_until_matching_token(token.type);
+ if (token.kind == '(' || token.kind == '{' || token.kind == '[')
+ eat_until_matching_token(token.kind);
next_token();
return;
}
#ifndef NDEBUG
/* make a copy of the anchor set, so we can check if it is restored after parsing */
- unsigned char token_anchor_copy[T_LAST_TOKEN];
+ unsigned short token_anchor_copy[T_LAST_TOKEN];
memcpy(token_anchor_copy, token_anchor_set, sizeof(token_anchor_copy));
#endif
- while (token.type != T_EOF && token.type != '}') {
+ while (token.kind != T_EOF && token.kind != '}') {
#ifndef NDEBUG
for (int i = 0; i < T_LAST_TOKEN; ++i) {
- unsigned char count = token_anchor_set[i] - token_anchor_copy[i];
+ unsigned short count = token_anchor_set[i] - token_anchor_copy[i];
if (count != 0) {
/* the anchor set and its copy differs */
internal_errorf(HERE, "Leaked anchor token %k %d times", i, count);
while (true) {
parse_externals();
- if (token.type == T_EOF)
+ if (token.kind == T_EOF)
break;
errorf(HERE, "stray %K outside of function", &token);
- if (token.type == '(' || token.type == '{' || token.type == '[')
- eat_until_matching_token(token.type);
+ if (token.kind == '(' || token.kind == '{' || token.kind == '[')
+ eat_until_matching_token(token.kind);
next_token();
}
}
projects / cparser / blobdiff