/*
* This file is part of cparser.
- * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
+ * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
*/
#ifndef TYPE_T_H
#define TYPE_T_H
#include "ast_t.h"
#include "adt/obst.h"
-extern struct obstack *type_obst;
-
typedef enum type_kind_t {
- TYPE_INVALID,
- TYPE_ERROR,
+ TYPE_ERROR = 1,
TYPE_ATOMIC,
TYPE_COMPLEX,
TYPE_IMAGINARY,
TYPE_POINTER,
TYPE_REFERENCE,
TYPE_ARRAY,
- TYPE_BITFIELD,
TYPE_TYPEDEF,
TYPE_TYPEOF,
} type_kind_t;
ir_type *firm_type;
};
+/**
+ * used for atomic types, complex and imaginary and as base for enum
+ */
struct atomic_type_t {
type_base_t base;
atomic_type_kind_t akind;
};
-struct complex_type_t {
- type_base_t base;
- atomic_type_kind_t akind;
-};
-
-struct imaginary_type_t {
- type_base_t base;
- atomic_type_kind_t akind;
-};
-
struct pointer_type_t {
type_base_t base;
type_t *points_to;
/** Linkage specifications. */
typedef enum linkage_kind_t {
- LINKAGE_INVALID,
- LINKAGE_C, /**< C linkage. */
+ LINKAGE_C = 1, /**< C linkage. */
LINKAGE_CXX /**< C++ linkage. */
} linkage_kind_t;
};
struct enum_type_t {
- type_base_t base;
- atomic_type_kind_t akind; /**< underlying atomic type */
+ atomic_type_t base;
/** the enum entity. You can find the enum entries by walking the
* enum->base.next list until you don't find ENTITY_ENUM_VALUE entities
* anymore */
type_t *resolved_type;
};
-struct bitfield_type_t {
- type_base_t base;
- type_t *base_type;
- expression_t *size_expression; /**< The expression for the bit size. */
- il_size_t bit_size; /**< Size of this bitfield in bits. */
-};
-
union type_t {
type_kind_t kind;
type_base_t base;
atomic_type_t atomic;
- complex_type_t complex;
- imaginary_type_t imaginary;
pointer_type_t pointer;
reference_type_t reference;
array_type_t array;
compound_type_t compound;
enum_type_t enumt;
typedef_type_t typedeft;
- bitfield_type_t bitfield;
typeof_type_t typeoft;
};
+typedef struct atomic_type_properties_t atomic_type_properties_t;
+struct atomic_type_properties_t {
+ unsigned size; /**< type size in bytes */
+ unsigned alignment; /**< type alignment in bytes */
+ /** some ABIs are broken and require an alignment different from the
+ * recommended/best alignment inside structs. Fixing ABIs is difficult
+ * so people rather stick with the wrong values for compatibility.
+ * (double type on x86 System V ABI)
+ */
+ unsigned struct_alignment;
+ unsigned flags; /**< type flags from atomic_type_flag_t */
+ unsigned rank; /**< integer conversion rank */
+};
+
+extern atomic_type_properties_t atomic_type_properties[ATOMIC_TYPE_LAST+1];
+extern atomic_type_properties_t pointer_properties;
+
/** The default calling convention for functions. */
extern cc_kind_t default_calling_convention;
type_qualifiers_t qualifiers, variable_t *variable);
type_t *make_array_type(type_t *element_type, size_t size,
type_qualifiers_t qualifiers);
+function_parameter_t *allocate_parameter(type_t*);
+/**
+ * Duplicates a type.
+ *
+ * @param type The type to copy.
+ * @return A copy of the type.
+ *
+ * @note This does not produce a deep copy!
+ */
type_t *duplicate_type(const type_t *type);
+
type_t *identify_new_type(type_t *type);
static inline bool is_typeref(const type_t *type)
{
assert(!is_typeref(type));
- if(type->kind != TYPE_ATOMIC)
+ if (type->kind != TYPE_ATOMIC)
return false;
const atomic_type_t *atomic_type = &type->atomic;
return atomic_type->akind == atype;
}
+static inline bool is_type_void(type_t const *const type)
+{
+ return is_type_atomic(type, ATOMIC_TYPE_VOID);
+}
+
static inline bool is_type_pointer(const type_t *type)
{
assert(!is_typeref(type));
return type->kind != TYPE_ERROR;
}
+/**
+ * return integer conversion rank of an atomic type kind
+ */
+static inline unsigned get_akind_rank(atomic_type_kind_t akind)
+{
+ return atomic_type_properties[akind].rank;
+}
+
+static inline bool is_akind_signed(atomic_type_kind_t akind)
+{
+ return atomic_type_properties[akind].flags & ATOMIC_TYPE_FLAG_SIGNED;
+}
+
+static inline atomic_type_kind_t get_arithmetic_akind(const type_t *type)
+{
+ assert(type->kind == TYPE_ATOMIC || type->kind == TYPE_COMPLEX
+ || type->kind == TYPE_IMAGINARY || type->kind == TYPE_ENUM);
+ /* note that atomic, complex and enum share atomic_type_t base */
+ return type->atomic.akind;
+}
+
/**
* Allocate a type node of given kind and initialize all
* fields with zero.
*
* @param return_type the return type
*/
-type_t *make_function_0_type(type_t *return_type);
+type_t *make_function_0_type(type_t *return_type,
+ decl_modifiers_t modifiers);
/**
* Creates a return_type (func)(argument_type) function type if not
* @param return_type the return type
* @param argument_type the argument type
*/
-type_t *make_function_1_type(type_t *return_type, type_t *argument_type1);
+type_t *make_function_1_type(type_t *return_type, type_t *argument_type1,
+ decl_modifiers_t modifiers);
/**
* if not already exists.
*/
type_t *make_function_2_type(type_t *return_type, type_t *argument_type1,
- type_t *argument_type2);
+ type_t *argument_type2,
+ decl_modifiers_t modifiers);
/**
* Creates a return_type (func)(argument_type, ...) function type if not
* @param return_type the return type
* @param argument_type the argument type
*/
-type_t *make_function_1_type_variadic(type_t *return_type, type_t *argument_type);
+type_t *make_function_1_type_variadic(type_t *return_type,
+ type_t *argument_type,
+ decl_modifiers_t modifiers);
/**
* Create a function type with n parameters
projects / cparser / blobdiff