type_visited++;
}
-static
-void print_type_qualifiers(unsigned qualifiers)
+void print_type_qualifiers(type_qualifiers_t qualifiers)
{
if(qualifiers & TYPE_QUALIFIER_CONST) fputs("const ", out);
if(qualifiers & TYPE_QUALIFIER_VOLATILE) fputs("volatile ", out);
if(qualifiers & TYPE_QUALIFIER_RESTRICT) fputs("restrict ", out);
- if(qualifiers & TYPE_QUALIFIER_INLINE) fputs("inline ", out);
}
static
fputc(')', out);
}
-static
-void print_pointer_type_pre(const pointer_type_t *type)
+static void print_pointer_type_pre(const pointer_type_t *type)
{
intern_print_type_pre(type->points_to);
fputs("*", out);
intern_print_type_post(type->points_to);
}
+static void print_array_type_pre(const array_type_t *type)
+{
+ intern_print_type_pre(type->element_type);
+}
+
static void print_array_type_post(const array_type_t *type)
{
fputc('[', out);
print_expression(type->size);
}
fputc(']', out);
+ intern_print_type_post(type->element_type);
}
void print_enum_definition(const declaration_t *declaration)
fprintf(out, "%s", entry->symbol->string);
if(entry->init.initializer != NULL) {
fprintf(out, " = ");
- print_initializer(entry->init.initializer);
+ print_expression(entry->init.enum_value);
}
fprintf(out, ",\n");
}
static void intern_print_type_pre(type_t *type)
{
switch(type->type) {
+ case TYPE_COUNT:
case TYPE_INVALID:
fputs("invalid", out);
return;
case TYPE_ENUM:
- print_type_enum((enum_type_t*) type);
+ print_type_enum(&type->enumt);
return;
case TYPE_ATOMIC:
- print_atomic_type((atomic_type_t*) type);
+ print_atomic_type(&type->atomic);
return;
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
- print_compound_type((compound_type_t*) type);
+ print_compound_type(&type->compound);
return;
case TYPE_BUILTIN:
- fputs(((builtin_type_t*) type)->symbol->string, out);
+ fputs(type->builtin.symbol->string, out);
return;
case TYPE_FUNCTION:
- print_function_type_pre((function_type_t*) type);
+ print_function_type_pre(&type->function);
return;
case TYPE_POINTER:
- print_pointer_type_pre((pointer_type_t*) type);
+ print_pointer_type_pre(&type->pointer);
return;
case TYPE_ARRAY:
+ print_array_type_pre(&type->array);
return;
case TYPE_TYPEDEF:
- print_typedef_type_pre((typedef_type_t*) type);
+ print_typedef_type_pre(&type->typedeft);
return;
case TYPE_TYPEOF:
- print_typeof_type_pre((typeof_type_t*) type);
+ print_typeof_type_pre(&type->typeoft);
return;
}
fputs("unknown", out);
}
-static
-void intern_print_type_post(type_t *type)
+static void intern_print_type_post(type_t *type)
{
switch(type->type) {
case TYPE_FUNCTION:
- print_function_type_post((const function_type_t*) type, NULL);
+ print_function_type_post(&type->function, NULL);
return;
case TYPE_POINTER:
- print_pointer_type_post((const pointer_type_t*) type);
+ print_pointer_type_post(&type->pointer);
return;
case TYPE_ARRAY:
- print_array_type_post((const array_type_t*) type);
+ print_array_type_post(&type->array);
return;
case TYPE_INVALID:
+ case TYPE_COUNT:
case TYPE_ATOMIC:
case TYPE_ENUM:
case TYPE_COMPOUND_STRUCT:
bool is_type_integer(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type == TYPE_ENUM)
- return 1;
+ return true;
if(type->type != TYPE_ATOMIC)
- return 0;
+ return false;
- atomic_type_t *atomic_type = (atomic_type_t*) type;
- switch(atomic_type->atype) {
+ switch(type->atomic.atype) {
case ATOMIC_TYPE_BOOL:
case ATOMIC_TYPE_CHAR:
case ATOMIC_TYPE_SCHAR:
case ATOMIC_TYPE_ULONG:
case ATOMIC_TYPE_LONGLONG:
case ATOMIC_TYPE_ULONGLONG:
- return 1;
+ return true;
default:
- return 0;
+ return false;
}
}
bool is_type_floating(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type != TYPE_ATOMIC)
- return 0;
+ return false;
- atomic_type_t *atomic_type = (atomic_type_t*) type;
- switch(atomic_type->atype) {
+ switch(type->atomic.atype) {
case ATOMIC_TYPE_FLOAT:
case ATOMIC_TYPE_DOUBLE:
case ATOMIC_TYPE_LONG_DOUBLE:
case ATOMIC_TYPE_FLOAT_COMPLEX:
case ATOMIC_TYPE_DOUBLE_COMPLEX:
case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
-#endif
-#ifdef PROVIDE_IMAGINARY
case ATOMIC_TYPE_FLOAT_IMAGINARY:
case ATOMIC_TYPE_DOUBLE_IMAGINARY:
case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
#endif
- return 1;
+ return true;
default:
- return 0;
+ return false;
+ }
+}
+
+bool is_type_signed(const type_t *type)
+{
+ assert(!is_typeref(type));
+
+ /* enum types are int for now */
+ if(type->type == TYPE_ENUM)
+ return true;
+
+ if(type->type != TYPE_ATOMIC)
+ return false;
+
+ switch(type->atomic.atype) {
+ case ATOMIC_TYPE_CHAR:
+ case ATOMIC_TYPE_SCHAR:
+ case ATOMIC_TYPE_SHORT:
+ case ATOMIC_TYPE_INT:
+ case ATOMIC_TYPE_LONG:
+ case ATOMIC_TYPE_LONGLONG:
+ case ATOMIC_TYPE_FLOAT:
+ case ATOMIC_TYPE_DOUBLE:
+ case ATOMIC_TYPE_LONG_DOUBLE:
+#ifdef PROVIDE_COMPLEX
+ case ATOMIC_TYPE_FLOAT_COMPLEX:
+ case ATOMIC_TYPE_DOUBLE_COMPLEX:
+ case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
+ case ATOMIC_TYPE_FLOAT_IMAGINARY:
+ case ATOMIC_TYPE_DOUBLE_IMAGINARY:
+ case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
+#endif
+ return true;
+
+ case ATOMIC_TYPE_BOOL:
+ case ATOMIC_TYPE_UCHAR:
+ case ATOMIC_TYPE_USHORT:
+ case ATOMIC_TYPE_UINT:
+ case ATOMIC_TYPE_ULONG:
+ case ATOMIC_TYPE_ULONGLONG:
+ return false;
+
+ case ATOMIC_TYPE_INVALID:
+ case ATOMIC_TYPE_VOID:
+ return false;
}
+
+ panic("invalid atomic type found");
+ return false;
}
bool is_type_arithmetic(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(is_type_integer(type) || is_type_floating(type))
return 1;
bool is_type_scalar(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type == TYPE_POINTER)
return 1;
return is_type_arithmetic(type);
}
+bool is_type_incomplete(const type_t *type)
+{
+ assert(!is_typeref(type));
+
+ switch(type->type) {
+ case TYPE_COMPOUND_STRUCT:
+ case TYPE_COMPOUND_UNION: {
+ const compound_type_t *compound_type = &type->compound;
+ declaration_t *declaration = compound_type->declaration;
+ return !declaration->init.is_defined;
+ }
+ case TYPE_FUNCTION:
+ return true;
+
+ case TYPE_ARRAY:
+ return type->array.size == NULL;
+
+ case TYPE_ATOMIC:
+ case TYPE_POINTER:
+ case TYPE_ENUM:
+ return false;
+
+ case TYPE_TYPEDEF:
+ case TYPE_TYPEOF:
+ case TYPE_BUILTIN:
+ panic("is_type_incomplete called without typerefs skipped");
+ case TYPE_COUNT:
+ case TYPE_INVALID:
+ break;
+ }
+
+ panic("invalid type found");
+}
+
+bool types_compatible(const type_t *type1, const type_t *type2)
+{
+ assert(!is_typeref(type1));
+ assert(!is_typeref(type2));
+
+ /* TODO: really incomplete */
+ if(type1 == type2)
+ return true;
+
+ if(type1->type == TYPE_ATOMIC && type2->type == TYPE_ATOMIC) {
+ return type1->atomic.atype == type2->atomic.atype;
+ }
+
+ return false;
+}
+
+bool pointers_compatible(const type_t *type1, const type_t *type2)
+{
+ assert(!is_typeref(type1));
+ assert(!is_typeref(type2));
+
+ assert(type1->type == TYPE_POINTER);
+ assert(type2->type == TYPE_POINTER);
+ /* TODO */
+ return true;
+}
+
+static size_t get_type_size(type_t *type)
+{
+ switch(type->type) {
+ case TYPE_ATOMIC: return sizeof(atomic_type_t); break;
+ case TYPE_COMPOUND_STRUCT:
+ case TYPE_COMPOUND_UNION: return sizeof(compound_type_t); break;
+ case TYPE_ENUM: return sizeof(enum_type_t); break;
+ case TYPE_FUNCTION: return sizeof(function_type_t); break;
+ case TYPE_POINTER: return sizeof(pointer_type_t); break;
+ case TYPE_ARRAY: return sizeof(array_type_t); break;
+ case TYPE_BUILTIN: return sizeof(builtin_type_t); break;
+ case TYPE_TYPEDEF: return sizeof(typedef_type_t); break;
+ case TYPE_TYPEOF: return sizeof(typeof_type_t); break;
+ case TYPE_COUNT:
+ case TYPE_INVALID: panic("invalid type found"); break;
+ }
+ panic("unknown type found");
+}
+
+/**
+ * duplicates a type
+ * note that this does not produce a deep copy!
+ */
+static type_t *duplicate_type(type_t *type)
+{
+ size_t size = get_type_size(type);
+
+ type_t *copy = obstack_alloc(type_obst, size);
+ memcpy(copy, type, size);
+
+ (void) duplicate_type;
+
+ return type;
+}
+
+type_t *skip_typeref(type_t *type)
+{
+ unsigned qualifiers = type->base.qualifiers;
+
+ while(1) {
+ switch(type->type) {
+ case TYPE_TYPEDEF: {
+ qualifiers |= type->base.qualifiers;
+ const typedef_type_t *typedef_type = &type->typedeft;
+ if(typedef_type->resolved_type != NULL) {
+ type = typedef_type->resolved_type;
+ break;
+ }
+ type = typedef_type->declaration->type;
+ continue;
+ }
+ case TYPE_TYPEOF: {
+ const typeof_type_t *typeof_type = &type->typeoft;
+ if(typeof_type->typeof_type != NULL) {
+ type = typeof_type->typeof_type;
+ } else {
+ type = typeof_type->expression->datatype;
+ }
+ continue;
+ }
+ case TYPE_BUILTIN: {
+ const builtin_type_t *builtin_type = &type->builtin;
+ type = builtin_type->real_type;
+ continue;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+
+ return type;
+}
+
+
+
static type_t *identify_new_type(type_t *type)
{
type_t *result = typehash_insert(type);
return result;
}
-type_t *make_atomic_type(atomic_type_type_t type, type_qualifier_t qualifiers)
+type_t *make_atomic_type(atomic_type_type_t atype, type_qualifiers_t qualifiers)
{
- atomic_type_t *atomic_type
- = obstack_alloc(type_obst, sizeof(atomic_type[0]));
- memset(atomic_type, 0, sizeof(atomic_type[0]));
- atomic_type->type.type = TYPE_ATOMIC;
- atomic_type->type.qualifiers = qualifiers;
- atomic_type->atype = type;
+ type_t *type = obstack_alloc(type_obst, sizeof(atomic_type_t));
+ memset(type, 0, sizeof(atomic_type_t));
+
+ type->type = TYPE_ATOMIC;
+ type->base.qualifiers = qualifiers;
+ type->atomic.atype = atype;
- return identify_new_type((type_t*) atomic_type);
+ return identify_new_type(type);
}
-type_t *make_pointer_type(type_t *points_to, type_qualifier_t qualifiers)
+type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers)
{
- pointer_type_t *pointer_type
- = obstack_alloc(type_obst, sizeof(pointer_type[0]));
- memset(pointer_type, 0, sizeof(pointer_type[0]));
- pointer_type->type.type = TYPE_POINTER;
- pointer_type->type.qualifiers = qualifiers;
- pointer_type->points_to = points_to;
+ type_t *type = obstack_alloc(type_obst, sizeof(pointer_type_t));
+ memset(type, 0, sizeof(pointer_type_t));
+
+ type->type = TYPE_POINTER;
+ type->base.qualifiers = qualifiers;
+ type->pointer.points_to = points_to;
- return identify_new_type((type_t*) pointer_type);
+ return identify_new_type(type);
}
static __attribute__((unused))
projects / cparser / blobdiff