X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_t.h;h=2d602ec14b7bb1c3094781e1eb26e6612c46addf;hb=578e95b73d0ea28c38bbbef48f49fb00748f522e;hp=b47f7b5ec4e0261d9a337c8193ff78cb21f0996e;hpb=8240dbd8abce1f5d706ac6e4fa29d8ab82e2db1a;p=cparser diff --git a/type_t.h b/type_t.h index b47f7b5..2d602ec 100644 --- a/type_t.h +++ b/type_t.h @@ -1,7 +1,27 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2008 Matthias Braun + * + * 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. + */ #ifndef TYPE_T_H #define TYPE_T_H #include +#include #include @@ -11,10 +31,11 @@ #include "ast_t.h" #include "adt/obst.h" -struct obstack *type_obst; +extern struct obstack *type_obst; typedef enum { TYPE_INVALID, + TYPE_ERROR, TYPE_ATOMIC, TYPE_COMPOUND_STRUCT, TYPE_COMPOUND_UNION, @@ -22,10 +43,11 @@ typedef enum { TYPE_FUNCTION, TYPE_POINTER, TYPE_ARRAY, + TYPE_BITFIELD, TYPE_BUILTIN, TYPE_TYPEDEF, - TYPE_TYPEOF -} type_type_t; + TYPE_TYPEOF, +} type_kind_t; /* note that the constant values represent the rank of the types as defined * in § 6.3.1 */ @@ -51,50 +73,60 @@ typedef enum { ATOMIC_TYPE_FLOAT_COMPLEX, ATOMIC_TYPE_DOUBLE_COMPLEX, ATOMIC_TYPE_LONG_DOUBLE_COMPLEX, -#endif -#ifdef PROVIDE_IMAGINARY ATOMIC_TYPE_FLOAT_IMAGINARY, ATOMIC_TYPE_DOUBLE_IMAGINARY, ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY, #endif -} atomic_type_type_t; + ATOMIC_TYPE_LAST +} atomic_type_kind_t; typedef enum { + TYPE_QUALIFIER_NONE = 0, TYPE_QUALIFIER_CONST = 1 << 0, TYPE_QUALIFIER_RESTRICT = 1 << 1, TYPE_QUALIFIER_VOLATILE = 1 << 2, - TYPE_QUALIFIER_INLINE = 1 << 3, } type_qualifier_t; -struct type_t { - type_type_t type; - type_qualifier_t qualifiers; +typedef unsigned int type_qualifiers_t; + +struct type_base_t { + type_kind_t kind; + type_qualifiers_t qualifiers; + unsigned char alignment; /**< The extra alignment of the type, 0 for default. */ + source_position_t source_position; ir_type *firm_type; }; struct atomic_type_t { - type_t type; - atomic_type_type_t atype; + type_base_t type; + atomic_type_kind_t akind; }; struct builtin_type_t { - type_t type; - symbol_t *symbol; - type_t *real_type; + type_base_t type; + symbol_t *symbol; + type_t *real_type; }; struct pointer_type_t { - type_t type; - type_t *points_to; + type_base_t type; + type_t *points_to; }; struct array_type_t { - type_t type; + type_base_t type; type_t *element_type; - bool is_static; - bool is_variable; - expression_t *size; + expression_t *size_expression; + size_t size; + + ir_node *size_node; /**< used by ast2firm phase */ + + unsigned is_static : 1; /**< a [static] type */ + unsigned is_variable : 1; /**< a [*] type */ + unsigned has_implicit_size : 1; + unsigned size_constant : 1; /**< size expression is constant */ + unsigned is_vla : 1; /**< it's a variable length array */ }; struct function_parameter_t { @@ -103,40 +135,132 @@ struct function_parameter_t { }; struct function_type_t { - type_t type; - type_t *result_type; + type_base_t type; + type_t *return_type; function_parameter_t *parameters; - bool variadic; - bool unspecified_parameters; + unsigned variadic : 1; + unsigned unspecified_parameters : 1; + unsigned kr_style_parameters : 1; }; struct compound_type_t { - type_t type; - /** the declaration of the compound type, it's context field - * contains the compound entries. */ + type_base_t type; + /** the declaration of the compound type, the scope of the declaration + * contains the compound entries. */ declaration_t *declaration; }; struct enum_type_t { - type_t type; + type_base_t type; /** the declaration of the enum type. You can find the enum entries by - * walking the declaration->context_next list until you don't find - * STORAGE_CLASS_ENUM_ENTRY declarations anymore */ + * walking the declaration->next list until you don't find + * STORAGE_CLASS_ENUM_ENTRY declarations anymore */ declaration_t *declaration; }; struct typedef_type_t { - type_t type; + type_base_t type; declaration_t *declaration; + type_t *resolved_type; }; struct typeof_type_t { - type_t type; + type_base_t type; expression_t *expression; type_t *typeof_type; + type_t *resolved_type; +}; + +struct bitfield_type_t { + type_base_t type; + type_t *base; + expression_t *size; +}; + +union type_t { + type_kind_t kind; + type_base_t base; + atomic_type_t atomic; + builtin_type_t builtin; + pointer_type_t pointer; + array_type_t array; + function_type_t function; + compound_type_t compound; + enum_type_t enumt; + typedef_type_t typedeft; + bitfield_type_t bitfield; + typeof_type_t typeoft; }; -type_t *make_atomic_type(atomic_type_type_t type, type_qualifier_t qualifiers); -type_t *make_pointer_type(type_t *points_to, type_qualifier_t qualifiers); +type_t *make_atomic_type(atomic_type_kind_t type, type_qualifiers_t qualifiers); +type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers); +type_t *make_array_type(type_t *element_type, size_t size, + type_qualifiers_t qualifiers); + +type_t *duplicate_type(const type_t *type); + +static inline bool is_typeref(const type_t *type) +{ + return type->kind == TYPE_TYPEDEF || type->kind == TYPE_TYPEOF; +} + +static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype) +{ + assert(!is_typeref(type)); + + 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_pointer(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_POINTER; +} + +static inline bool is_type_array(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_ARRAY; +} + +static inline bool is_type_function(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_FUNCTION; +} + +static inline bool is_type_union(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_COMPOUND_UNION; +} + +static inline bool is_type_struct(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_COMPOUND_STRUCT; +} + +static inline bool is_type_builtin(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_BUILTIN; +} + +static inline bool is_type_compound(const type_t *type) +{ + assert(!is_typeref(type)); + return type->kind == TYPE_COMPOUND_STRUCT + || type->kind == TYPE_COMPOUND_UNION; +} + +static inline bool is_type_valid(const type_t *type) +{ + return type->kind != TYPE_ERROR; +} #endif