#include <assert.h>
#include "type_t.h"
+#include "entity_t.h"
#include "symbol_t.h"
#include "type_hash.h"
#include "adt/error.h"
+#include "adt/util.h"
#include "lang_features.h"
static struct obstack _type_obst;
.alignment = 0,
.flags = ATOMIC_TYPE_FLAG_NONE
},
+ [ATOMIC_TYPE_WCHAR_T] = {
+ .size = (unsigned)-1,
+ .alignment = (unsigned)-1,
+ /* signed flag will be set when known */
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
[ATOMIC_TYPE_CHAR] = {
.size = 1,
.alignment = 1,
props[ATOMIC_TYPE_LONGLONG].alignment = 4;
props[ATOMIC_TYPE_ULONGLONG].alignment = 4;
- props[ATOMIC_TYPE_BOOL] = props[ATOMIC_TYPE_UINT];
+ /* TODO: make this configurable for platforms which do not use byte sized
+ * bools. */
+ props[ATOMIC_TYPE_BOOL] = props[ATOMIC_TYPE_UCHAR];
+
+ props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind];
}
void exit_types(void)
}
}
+const char *get_atomic_kind_name(atomic_type_kind_t kind)
+{
+ switch(kind) {
+ case ATOMIC_TYPE_INVALID: break;
+ case ATOMIC_TYPE_VOID: return "void";
+ case ATOMIC_TYPE_WCHAR_T: return "wchar_t";
+ case ATOMIC_TYPE_BOOL: return c_mode & _CXX ? "bool" : "_Bool";
+ case ATOMIC_TYPE_CHAR: return "char";
+ case ATOMIC_TYPE_SCHAR: return "signed char";
+ case ATOMIC_TYPE_UCHAR: return "unsigned char";
+ case ATOMIC_TYPE_INT: return "int";
+ case ATOMIC_TYPE_UINT: return "unsigned int";
+ case ATOMIC_TYPE_SHORT: return "short";
+ case ATOMIC_TYPE_USHORT: return "unsigned short";
+ case ATOMIC_TYPE_LONG: return "long";
+ case ATOMIC_TYPE_ULONG: return "unsigned long";
+ case ATOMIC_TYPE_LONGLONG: return "long long";
+ case ATOMIC_TYPE_ULONGLONG: return "unsigned long long";
+ case ATOMIC_TYPE_LONG_DOUBLE: return "long double";
+ case ATOMIC_TYPE_FLOAT: return "float";
+ case ATOMIC_TYPE_DOUBLE: return "double";
+ }
+ return "INVALIDATOMIC";
+}
+
/**
* Prints the name of an atomic type kinds.
*
* @param kind The type kind.
*/
-static
-void print_atomic_kinds(atomic_type_kind_t kind)
+static void print_atomic_kinds(atomic_type_kind_t kind)
{
- const char *s = "INVALIDATOMIC";
- switch(kind) {
- case ATOMIC_TYPE_INVALID: break;
- case ATOMIC_TYPE_VOID: s = "void"; break;
- case ATOMIC_TYPE_BOOL: s = "_Bool"; break;
- case ATOMIC_TYPE_CHAR: s = "char"; break;
- case ATOMIC_TYPE_SCHAR: s = "signed char"; break;
- case ATOMIC_TYPE_UCHAR: s = "unsigned char"; break;
- case ATOMIC_TYPE_INT: s = "int"; break;
- case ATOMIC_TYPE_UINT: s = "unsigned int"; break;
- case ATOMIC_TYPE_SHORT: s = "short"; break;
- case ATOMIC_TYPE_USHORT: s = "unsigned short"; break;
- case ATOMIC_TYPE_LONG: s = "long"; break;
- case ATOMIC_TYPE_ULONG: s = "unsigned long"; break;
- case ATOMIC_TYPE_LONGLONG: s = "long long"; break;
- case ATOMIC_TYPE_ULONGLONG: s = "unsigned long long"; break;
- case ATOMIC_TYPE_LONG_DOUBLE: s = "long double"; break;
- case ATOMIC_TYPE_FLOAT: s = "float"; break;
- case ATOMIC_TYPE_DOUBLE: s = "double"; break;
- }
+ const char *s = get_atomic_kind_name(kind);
fputs(s, out);
}
*
* @param type The type.
*/
-static
-void print_atomic_type(const atomic_type_t *type)
+static void print_atomic_type(const atomic_type_t *type)
{
print_type_qualifiers(type->base.qualifiers);
if (type->base.qualifiers != 0)
*/
static void print_function_type_pre(const function_type_t *type, bool top)
{
+ switch (type->linkage) {
+ case LINKAGE_INVALID:
+ break;
+
+ case LINKAGE_C:
+ if (c_mode & _CXX)
+ fputs("extern \"C\" ", out);
+ break;
+
+ case LINKAGE_CXX:
+ if (!(c_mode & _CXX))
+ fputs("extern \"C++\" ", out);
+ break;
+ }
+
print_type_qualifiers(type->base.qualifiers);
if (type->base.qualifiers != 0)
fputc(' ', out);
-
intern_print_type_pre(type->return_type, false);
switch (type->calling_convention) {
- case CC_CDECL:
- fputs("__cdecl ", out);
- break;
- case CC_STDCALL:
- fputs("__stdcall ", out);
- break;
- case CC_FASTCALL:
- fputs("__fastcall ", out);
- break;
- case CC_THISCALL:
- fputs("__thiscall ", out);
- break;
- case CC_DEFAULT:
- break;
+ case CC_CDECL: fputs("__cdecl ", out); break;
+ case CC_STDCALL: fputs("__stdcall ", out); break;
+ case CC_FASTCALL: fputs("__fastcall ", out); break;
+ case CC_THISCALL: fputs("__thiscall ", out); break;
+ case CC_DEFAULT: break;
}
/* don't emit parenthesis if we're the toplevel type... */
* @param top true, if this is the top type, false if it's an embedded type.
*/
static void print_function_type_post(const function_type_t *type,
- const scope_t *scope, bool top)
+ const scope_t *parameters, bool top)
{
/* don't emit parenthesis if we're the toplevel type... */
if (!top)
fputc('(', out);
bool first = true;
- if (scope == NULL) {
+ if (parameters == NULL) {
function_parameter_t *parameter = type->parameters;
for( ; parameter != NULL; parameter = parameter->next) {
if (first) {
print_type(parameter->type);
}
} else {
- declaration_t *parameter = scope->declarations;
- for( ; parameter != NULL; parameter = parameter->next) {
+ entity_t *parameter = parameters->entities;
+ for (; parameter != NULL; parameter = parameter->base.next) {
+ if (parameter->kind != ENTITY_PARAMETER)
+ continue;
+
if (first) {
first = false;
} else {
fputs(", ", out);
}
- print_type_ext(parameter->type, parameter->symbol,
- ¶meter->scope);
+ const type_t *const type = parameter->declaration.type;
+ if (type == NULL) {
+ fputs(parameter->base.symbol->string, out);
+ } else {
+ print_type_ext(type, parameter->base.symbol, NULL);
+ }
}
}
if (type->variadic) {
static void print_pointer_type_pre(const pointer_type_t *type)
{
intern_print_type_pre(type->points_to, false);
- fputs("*", out);
- print_type_qualifiers(type->base.qualifiers);
- if (type->base.qualifiers != 0)
+ variable_t *const variable = type->base_variable;
+ if (variable != NULL) {
+ fputs(" __based(", out);
+ fputs(variable->base.base.symbol->string, out);
+ fputs(") ", out);
+ }
+ fputc('*', out);
+ type_qualifiers_t const qual = type->base.qualifiers;
+ if (qual != 0)
fputc(' ', out);
+ print_type_qualifiers(qual);
+}
+
+/**
+ * Prints the prefix part of a reference type.
+ *
+ * @param type The reference type.
+ */
+static void print_reference_type_pre(const reference_type_t *type)
+{
+ intern_print_type_pre(type->refers_to, false);
+ fputc('&', out);
}
/**
intern_print_type_post(type->points_to, false);
}
+/**
+ * Prints the postfix part of a reference type.
+ *
+ * @param type The reference type.
+ */
+static void print_reference_type_post(const reference_type_t *type)
+{
+ intern_print_type_post(type->refers_to, false);
+}
+
/**
* Prints the prefix part of an array type.
*
static void print_bitfield_type_post(const bitfield_type_t *type)
{
fputs(" : ", out);
- print_expression(type->size);
+ print_expression(type->size_expression);
intern_print_type_post(type->base_type, false);
}
*
* @param declaration The enum's type declaration.
*/
-void print_enum_definition(const declaration_t *declaration)
+void print_enum_definition(const enum_t *enume)
{
fputs("{\n", out);
change_indent(1);
- declaration_t *entry = declaration->next;
- for( ; entry != NULL && entry->storage_class == STORAGE_CLASS_ENUM_ENTRY;
- entry = entry->next) {
+ entity_t *entry = enume->base.next;
+ for( ; entry != NULL && entry->kind == ENTITY_ENUM_VALUE;
+ entry = entry->base.next) {
print_indent();
- fprintf(out, "%s", entry->symbol->string);
- if (entry->init.initializer != NULL) {
- fprintf(out, " = ");
+ fputs(entry->base.symbol->string, out);
+ if (entry->enum_value.value != NULL) {
+ fputs(" = ", out);
/* skip the implicit cast */
- expression_t *expression = entry->init.enum_value;
+ expression_t *expression = entry->enum_value.value;
if (expression->kind == EXPR_UNARY_CAST_IMPLICIT) {
expression = expression->unary.value;
}
print_expression(expression);
}
- fprintf(out, ",\n");
+ fputs(",\n", out);
}
change_indent(-1);
print_indent();
- fputs("}", out);
+ fputc('}', out);
}
/**
print_type_qualifiers(type->base.qualifiers);
fputs(" enum " + empty, out);
- declaration_t *declaration = type->declaration;
- symbol_t *symbol = declaration->symbol;
+ enum_t *enume = type->enume;
+ symbol_t *symbol = enume->base.symbol;
if (symbol != NULL) {
fputs(symbol->string, out);
} else {
- print_enum_definition(declaration);
+ print_enum_definition(enume);
}
}
/**
* Print the compound part of a compound type.
- *
- * @param declaration The declaration of the compound type.
*/
-void print_compound_definition(const declaration_t *declaration)
+void print_compound_definition(const compound_t *compound)
{
fputs("{\n", out);
change_indent(1);
- declaration_t *iter = declaration->scope.declarations;
- for( ; iter != NULL; iter = iter->next) {
+ entity_t *entity = compound->members.entities;
+ for( ; entity != NULL; entity = entity->base.next) {
+ if (entity->kind != ENTITY_COMPOUND_MEMBER)
+ continue;
+
print_indent();
- print_declaration(iter);
+ print_entity(entity);
fputc('\n', out);
}
change_indent(-1);
print_indent();
- fputs("}", out);
+ fputc('}', out);
+ if (compound->modifiers & DM_TRANSPARENT_UNION) {
+ fputs("__attribute__((__transparent_union__))", out);
+ }
}
/**
fputs(" union " + empty, out);
}
- declaration_t *declaration = type->declaration;
- symbol_t *symbol = declaration->symbol;
+ compound_t *compound = type->compound;
+ symbol_t *symbol = compound->base.symbol;
if (symbol != NULL) {
fputs(symbol->string, out);
} else {
- print_compound_definition(declaration);
+ print_compound_definition(compound);
}
}
print_type_qualifiers(type->base.qualifiers);
if (type->base.qualifiers != 0)
fputc(' ', out);
- fputs(type->declaration->symbol->string, out);
+ fputs(type->typedefe->base.symbol->string, out);
}
/**
{
fputs("typeof(", out);
if (type->expression != NULL) {
- assert(type->typeof_type == NULL);
print_expression(type->expression);
} else {
print_type(type->typeof_type);
case TYPE_POINTER:
print_pointer_type_pre(&type->pointer);
return;
+ case TYPE_REFERENCE:
+ print_reference_type_pre(&type->reference);
+ return;
case TYPE_BITFIELD:
intern_print_type_pre(type->bitfield.base_type, top);
return;
case TYPE_POINTER:
print_pointer_type_post(&type->pointer);
return;
+ case TYPE_REFERENCE:
+ print_reference_type_post(&type->reference);
+ return;
case TYPE_ARRAY:
print_array_type_post(&type->array);
return;
case TYPE_TYPEDEF:
break;
}
+
+ if (type->base.modifiers & DM_TRANSPARENT_UNION) {
+ fputs("__attribute__((__transparent_union__))", out);
+ }
}
/**
}
void print_type_ext(const type_t *const type, const symbol_t *symbol,
- const scope_t *scope)
+ const scope_t *parameters)
{
if (type == NULL) {
fputs("nil type", out);
fputs(symbol->string, out);
}
if (type->kind == TYPE_FUNCTION) {
- print_function_type_post(&type->function, scope, true);
+ print_function_type_post(&type->function, parameters, true);
} else {
intern_print_type_post(type, true);
}
case TYPE_ENUM: return sizeof(enum_type_t);
case TYPE_FUNCTION: return sizeof(function_type_t);
case TYPE_POINTER: return sizeof(pointer_type_t);
+ case TYPE_REFERENCE: return sizeof(reference_type_t);
case TYPE_ARRAY: return sizeof(array_type_t);
case TYPE_BUILTIN: return sizeof(builtin_type_t);
case TYPE_TYPEDEF: return sizeof(typedef_type_t);
type_t *copy = obstack_alloc(type_obst, size);
memcpy(copy, type, size);
+ copy->base.firm_type = NULL;
return copy;
}
*/
type_t *get_unqualified_type(type_t *type)
{
+ assert(!is_typeref(type));
+
if (type->base.qualifiers == TYPE_QUALIFIER_NONE)
return type;
type_t *unqualified_type = duplicate_type(type);
unqualified_type->base.qualifiers = TYPE_QUALIFIER_NONE;
- type_t *result = typehash_insert(unqualified_type);
- if (result != unqualified_type) {
- obstack_free(type_obst, unqualified_type);
- }
-
- return result;
+ return identify_new_type(unqualified_type);
}
-type_t *get_qualified_type(type_t *type, type_qualifiers_t const qual)
+type_t *get_qualified_type(type_t *orig_type, type_qualifiers_t const qual)
{
- assert(!is_typeref(type));
+ type_t *type = skip_typeref(orig_type);
type_t *copy;
if (is_type_array(type)) {
type_t *qual_element_type = get_qualified_type(element_type, qual);
if (qual_element_type == element_type)
- return type;
+ return orig_type;
copy = duplicate_type(type);
copy->array.element_type = qual_element_type;
- } else {
+ } else if (is_type_valid(type)) {
if ((type->base.qualifiers & qual) == qual)
- return type;
+ return orig_type;
copy = duplicate_type(type);
copy->base.qualifiers |= qual;
+ } else {
+ return type;
}
- type = typehash_insert(copy);
- if (type != copy)
- obstack_free(type_obst, copy);
-
- return type;
+ return identify_new_type(copy);
}
/**
*/
bool is_type_real(const type_t *type)
{
- /* 6.2.5.17 */
- return is_type_integer(type)
- || (type->kind == TYPE_ATOMIC && is_type_float(type));
+ /* 6.2.5 (17) */
+ return is_type_integer(type) || is_type_float(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.complete;
- }
- case TYPE_ENUM: {
- const enum_type_t *enum_type = &type->enumt;
- declaration_t *declaration = enum_type->declaration;
- return !declaration->init.complete;
+ return !compound_type->compound->complete;
}
+ case TYPE_ENUM:
+ return false;
case TYPE_ARRAY:
return type->array.size_expression == NULL
case TYPE_BITFIELD:
case TYPE_FUNCTION:
case TYPE_POINTER:
+ case TYPE_REFERENCE:
case TYPE_BUILTIN:
case TYPE_ERROR:
return false;
if (!types_compatible(ret1, ret2))
return false;
+ if (func1->linkage != func2->linkage)
+ return false;
+
+ if (func1->calling_convention != func2->calling_convention)
+ return false;
+
/* can parameters be compared? */
if (func1->unspecified_parameters || func2->unspecified_parameters)
return true;
if (func1->variadic != func2->variadic)
return false;
- if (func1->calling_convention != func2->calling_convention)
- return false;
-
/* TODO: handling of unspecified parameters not correct yet */
/* all argument types must be compatible */
if (type1 == type2)
return true;
+ if (!is_type_valid(type1) || !is_type_valid(type2))
+ return true;
+
if (type1->base.qualifiers != type2->base.qualifiers)
return false;
if (type1->kind != type2->kind)
return types_compatible(to1, to2);
}
+ case TYPE_REFERENCE: {
+ const type_t *const to1 = skip_typeref(type1->reference.refers_to);
+ const type_t *const to2 = skip_typeref(type2->reference.refers_to);
+ return types_compatible(to1, to2);
+ }
+
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
case TYPE_ENUM:
{
type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
type_modifiers_t modifiers = TYPE_MODIFIER_NONE;
+ il_alignment_t alignment = 0;
while (true) {
+ if (alignment < type->base.alignment)
+ alignment = type->base.alignment;
+
switch (type->kind) {
case TYPE_ERROR:
return type;
case TYPE_TYPEDEF: {
qualifiers |= type->base.qualifiers;
modifiers |= type->base.modifiers;
+
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;
+ type = typedef_type->typedefe->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->base.type;
- }
+ case TYPE_TYPEOF:
+ qualifiers |= type->base.qualifiers;
+ modifiers |= type->base.modifiers;
+ type = type->typeoft.typeof_type;
continue;
- }
default:
break;
}
break;
}
- if (qualifiers != TYPE_QUALIFIER_NONE || modifiers != TYPE_MODIFIER_NONE) {
+ if (qualifiers != TYPE_QUALIFIER_NONE ||
+ modifiers != TYPE_MODIFIER_NONE ||
+ alignment > type->base.alignment) {
type_t *const copy = duplicate_type(type);
/* for const with typedefed array type the element type has to be
element_type = duplicate_type(element_type);
element_type->base.qualifiers |= qualifiers;
element_type->base.modifiers |= modifiers;
+ element_type->base.alignment = alignment;
copy->array.element_type = element_type;
} else {
copy->base.qualifiers |= qualifiers;
copy->base.modifiers |= modifiers;
+ copy->base.alignment = alignment;
}
- type = typehash_insert(copy);
- if (type != copy) {
- obstack_free(type_obst, copy);
- }
+ type = identify_new_type(copy);
}
return type;
}
+type_qualifiers_t get_type_qualifier(const type_t *type, bool skip_array_type)
+{
+ type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
+
+ while (true) {
+ switch (type->base.kind) {
+ case TYPE_ERROR:
+ return TYPE_QUALIFIER_NONE;
+ 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;
+ else
+ type = typedef_type->typedefe->type;
+ continue;
+ case TYPE_TYPEOF:
+ type = type->typeoft.typeof_type;
+ continue;
+ case TYPE_ARRAY:
+ if (skip_array_type) {
+ type = type->array.element_type;
+ continue;
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+ return type->base.qualifiers | qualifiers;
+}
+
unsigned get_atomic_type_size(atomic_type_kind_t kind)
{
assert(kind <= ATOMIC_TYPE_LAST);
/**
* Find the atomic type kind representing a given size (signed).
*/
-atomic_type_kind_t find_signed_int_atomic_type_kind_for_size(unsigned size) {
+atomic_type_kind_t find_signed_int_atomic_type_kind_for_size(unsigned size)
+{
static atomic_type_kind_t kinds[32];
assert(size < 32);
ATOMIC_TYPE_LONG,
ATOMIC_TYPE_LONGLONG
};
- for(unsigned i = 0; i < sizeof(possible_kinds)/sizeof(possible_kinds[0]); ++i) {
+ for (size_t i = 0; i < lengthof(possible_kinds); ++i) {
if (get_atomic_type_size(possible_kinds[i]) == size) {
kind = possible_kinds[i];
break;
/**
* Find the atomic type kind representing a given size (signed).
*/
-atomic_type_kind_t find_unsigned_int_atomic_type_kind_for_size(unsigned size) {
+atomic_type_kind_t find_unsigned_int_atomic_type_kind_for_size(unsigned size)
+{
static atomic_type_kind_t kinds[32];
assert(size < 32);
ATOMIC_TYPE_ULONG,
ATOMIC_TYPE_ULONGLONG
};
- for(unsigned i = 0; i < sizeof(possible_kinds)/sizeof(possible_kinds[0]); ++i) {
+ for (size_t i = 0; i < lengthof(possible_kinds); ++i) {
if (get_atomic_type_size(possible_kinds[i]) == size) {
kind = possible_kinds[i];
break;
* Hash the given type and return the "singleton" version
* of it.
*/
-static type_t *identify_new_type(type_t *type)
+type_t *identify_new_type(type_t *type)
{
type_t *result = typehash_insert(type);
if (result != type) {
type_t *type = obstack_alloc(type_obst, sizeof(pointer_type_t));
memset(type, 0, sizeof(pointer_type_t));
- type->kind = TYPE_POINTER;
- type->base.qualifiers = qualifiers;
- type->base.alignment = 0;
- type->pointer.points_to = points_to;
+ type->kind = TYPE_POINTER;
+ type->base.qualifiers = qualifiers;
+ type->base.alignment = 0;
+ type->pointer.points_to = points_to;
+ type->pointer.base_variable = NULL;
return identify_new_type(type);
}
+/**
+ * Creates a new reference type.
+ *
+ * @param refers_to The referred-to type for the new type.
+ */
+type_t *make_reference_type(type_t *refers_to)
+{
+ type_t *type = obstack_alloc(type_obst, sizeof(reference_type_t));
+ memset(type, 0, sizeof(reference_type_t));
+
+ type->kind = TYPE_REFERENCE;
+ type->base.qualifiers = 0;
+ type->base.alignment = 0;
+ type->reference.refers_to = refers_to;
+
+ return identify_new_type(type);
+}
+
+/**
+ * Creates a new based pointer type.
+ *
+ * @param points_to The points-to type for the new type.
+ * @param qualifiers Type qualifiers for the new type.
+ * @param variable The based variable
+ */
+type_t *make_based_pointer_type(type_t *points_to,
+ type_qualifiers_t qualifiers, variable_t *variable)
+{
+ type_t *type = obstack_alloc(type_obst, sizeof(pointer_type_t));
+ memset(type, 0, sizeof(pointer_type_t));
+
+ type->kind = TYPE_POINTER;
+ type->base.qualifiers = qualifiers;
+ type->base.alignment = 0;
+ type->pointer.points_to = points_to;
+ type->pointer.base_variable = variable;
+
+ return identify_new_type(type);
+}
+
+
type_t *make_array_type(type_t *element_type, size_t size,
type_qualifiers_t qualifiers)
{
projects / cparser / blobdiff