static struct obstack _type_obst;
struct obstack *type_obst = &_type_obst;
static FILE *out;
+static int type_visited = 0;
+static bool print_compound_entries;
-static void intern_print_type_pre(const type_t *type);
-static void intern_print_type_post(const type_t *type);
+static void intern_print_type_pre(type_t *type);
+static void intern_print_type_post(type_t *type);
void init_types(void)
{
out = stream;
}
-static
+void set_print_compound_entries(bool enabled)
+{
+ print_compound_entries = enabled;
+}
+
+void inc_type_visited(void)
+{
+ type_visited++;
+}
+
void print_type_qualifiers(unsigned 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
fputs(s, out);
}
-static
-void print_method_type_pre(const method_type_t *type)
+static void print_function_type_pre(const function_type_t *type)
{
print_type_qualifiers(type->type.qualifiers);
fputc('(', out);
}
-static
-void print_method_type_post(const method_type_t *type, const context_t *context)
+static void print_function_type_post(const function_type_t *type,
+ const context_t *context)
{
/* TODO: don't emit braces if we're the toplevel type... */
intern_print_type_post(type->result_type);
int first = 1;
if(context == NULL) {
- method_parameter_t *parameter = type->parameters;
+ function_parameter_t *parameter = type->parameters;
for( ; parameter != NULL; parameter = parameter->next) {
if(first) {
first = 0;
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)
+{
+ fputs("{\n", out);
+
+ change_indent(1);
+
+ declaration_t *entry = declaration->next;
+ for( ; entry != NULL && entry->storage_class == STORAGE_CLASS_ENUM_ENTRY;
+ entry = entry->next) {
+
+ print_indent();
+ fprintf(out, "%s", entry->symbol->string);
+ if(entry->init.initializer != NULL) {
+ fprintf(out, " = ");
+ print_expression(entry->init.enum_value);
+ }
+ fprintf(out, ",\n");
+ }
+
+ change_indent(-1);
+ print_indent();
+ fputs("}", out);
}
static void print_type_enum(const enum_type_t *type)
{
print_type_qualifiers(type->type.qualifiers);
- if(type->symbol != NULL) {
- fprintf(out, "enum %s", type->symbol->string);
+ fputs("enum ", out);
+
+ declaration_t *declaration = type->declaration;
+ symbol_t *symbol = declaration->symbol;
+ if(symbol != NULL) {
+ fputs(symbol->string, out);
} else {
- fprintf(out, "enum {\n");
-
- declaration_t *entry = type->entries_begin;
- for( ; entry != type->entries_end->next; entry = entry->next) {
- fprintf(out, "\t%s", entry->symbol->string);
- if(entry->initializer != NULL) {
- fprintf(out, " = ");
- print_expression(entry->initializer);
- }
- fprintf(out, ",\n");
- }
+ print_enum_definition(declaration);
+ }
+}
+
+void print_compound_definition(const declaration_t *declaration)
+{
+ fputs("{\n", out);
+ change_indent(1);
+
+ declaration_t *iter = declaration->context.declarations;
+ for( ; iter != NULL; iter = iter->next) {
+ print_indent();
+ print_declaration(iter);
+ fputc('\n', out);
+ }
+
+ change_indent(-1);
+ print_indent();
+ fputs("}", out);
+}
+
+static void print_compound_type(const compound_type_t *type)
+{
+ print_type_qualifiers(type->type.qualifiers);
+
+ if(type->type.type == TYPE_COMPOUND_STRUCT) {
+ fputs("struct ", out);
+ } else {
+ assert(type->type.type == TYPE_COMPOUND_UNION);
+ fputs("union ", out);
+ }
- fprintf(out, "} ");
+ declaration_t *declaration = type->declaration;
+ symbol_t *symbol = declaration->symbol;
+ if(symbol != NULL) {
+ fputs(symbol->string, out);
+ } else {
+ print_compound_definition(declaration);
+ }
+}
+
+static void print_typedef_type_pre(typedef_type_t *type)
+{
+ fputs(type->declaration->symbol->string, out);
+}
+
+static void print_typeof_type_pre(typeof_type_t *type)
+{
+ fputs("typeof(", out);
+ if(type->expression != NULL) {
+ assert(type->typeof_type == NULL);
+ print_expression(type->expression);
+ } else {
+ print_type(type->typeof_type);
}
+ fputc(')', out);
}
-static void intern_print_type_pre(const type_t *type)
+static void intern_print_type_pre(type_t *type)
{
switch(type->type) {
case TYPE_INVALID:
fputs("invalid", out);
return;
case TYPE_ENUM:
- print_type_enum((const enum_type_t*) type);
+ print_type_enum((enum_type_t*) type);
return;
case TYPE_ATOMIC:
- print_atomic_type((const atomic_type_t*) type);
+ print_atomic_type((atomic_type_t*) type);
return;
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
- print_type_qualifiers(type->qualifiers);
- if(((const compound_type_t*) type)->symbol != NULL) {
- fprintf(out, "%s", ((const compound_type_t*) type)->symbol->string);
- }
+ print_compound_type((compound_type_t*) type);
return;
case TYPE_BUILTIN:
fputs(((builtin_type_t*) type)->symbol->string, out);
return;
- case TYPE_METHOD:
- print_method_type_pre((const method_type_t*) type);
+ case TYPE_FUNCTION:
+ print_function_type_pre((function_type_t*) type);
return;
case TYPE_POINTER:
- print_pointer_type_pre((const pointer_type_t*) type);
+ print_pointer_type_pre((pointer_type_t*) type);
return;
case TYPE_ARRAY:
+ print_array_type_pre((array_type_t*) type);
+ return;
+ case TYPE_TYPEDEF:
+ print_typedef_type_pre((typedef_type_t*) type);
+ return;
+ case TYPE_TYPEOF:
+ print_typeof_type_pre((typeof_type_t*) type);
return;
}
fputs("unknown", out);
}
-static
-void intern_print_type_post(const type_t *type)
+static void intern_print_type_post(type_t *type)
{
switch(type->type) {
- case TYPE_METHOD:
- print_method_type_post((const method_type_t*) type, NULL);
+ case TYPE_FUNCTION:
+ print_function_type_post((const function_type_t*) type, NULL);
return;
case TYPE_POINTER:
print_pointer_type_post((const pointer_type_t*) type);
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
case TYPE_BUILTIN:
+ case TYPE_TYPEOF:
+ case TYPE_TYPEDEF:
break;
}
}
-void print_type(const type_t *type)
+void print_type(type_t *type)
{
print_type_ext(type, NULL, NULL);
}
-void print_type_ext(const type_t *type, const symbol_t *symbol,
+void print_type_ext(type_t *type, const symbol_t *symbol,
const context_t *context)
{
if(type == NULL) {
fputc(' ', out);
fputs(symbol->string, out);
}
- if(type->type == TYPE_METHOD) {
- print_method_type_post((const method_type_t*) type, context);
+ if(type->type == TYPE_FUNCTION) {
+ print_function_type_post((const function_type_t*) type, context);
} else {
intern_print_type_post(type);
}
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) {
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) {
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;
+
+ atomic_type_t *atomic_type = (atomic_type_t*) type;
+ switch(atomic_type->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
+ = (const compound_type_t*) type;
+ declaration_t *declaration = compound_type->declaration;
+ return !declaration->init.is_defined;
+ }
+ case TYPE_FUNCTION:
+ return true;
+
+ case TYPE_ARRAY: {
+ const array_type_t *array_type = (const array_type_t*) type;
+
+ return array_type->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_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) {
+ const atomic_type_t *atomic1 = (const atomic_type_t*) type1;
+ const atomic_type_t *atomic2 = (const atomic_type_t*) type2;
+
+ return atomic1->atype == atomic2->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);
+#if 0
+ pointer_type_t *pointer_type1 = (pointer_type_t*) type1;
+ pointer_type_t *pointer_type2 = (pointer_type_t*) type2;
+ return types_compatible(pointer_type1->points_to,
+ pointer_type2->points_to);
+#endif
+ 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_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->qualifiers;
+
+ while(1) {
+ switch(type->type) {
+ case TYPE_TYPEDEF: {
+ qualifiers |= type->qualifiers;
+ const typedef_type_t *typedef_type = (const typedef_type_t*) type;
+ 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 = (const typeof_type_t *) type;
+ 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 = (const builtin_type_t*) type;
+ 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 type, type_qualifiers_t qualifiers)
{
atomic_type_t *atomic_type
= obstack_alloc(type_obst, sizeof(atomic_type[0]));
return identify_new_type((type_t*) atomic_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]));
}
static __attribute__((unused))
-void dbg_type(const type_t *type)
+void dbg_type(type_t *type)
{
FILE *old_out = out;
out = stderr;
projects / cparser / blobdiff