X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=type.h;h=23b264f0f3ba040e2945bbe97002651fa00c2115;hb=f7f1fcc7021a3c622316b6415c16f83d0a64ae4a;hp=ca9a1134dbeec741e1be5b7ae32052658d9e1c46;hpb=10f7c1a8855a125dd841c2e4037f004ef1fec241;p=cparser diff --git a/type.h b/type.h index ca9a113..23b264f 100644 --- a/type.h +++ b/type.h @@ -1,6 +1,6 @@ /* * This file is part of cparser. - * Copyright (C) 2007-2008 Matthias Braun + * Copyright (C) 2007-2009 Matthias Braun * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -25,11 +25,17 @@ #include "ast.h" #include "symbol.h" +/** Type used to express sizes. */ +typedef unsigned long il_size_t; +typedef unsigned char il_alignment_t; + /* note that the constant values represent the rank of the types as defined * in § 6.3.1 */ -typedef enum { +typedef enum atomic_type_kind_t { ATOMIC_TYPE_INVALID = 0, ATOMIC_TYPE_VOID, + ATOMIC_TYPE_BOOL, + ATOMIC_TYPE_WCHAR_T, ATOMIC_TYPE_CHAR, ATOMIC_TYPE_SCHAR, ATOMIC_TYPE_UCHAR, @@ -44,12 +50,11 @@ typedef enum { ATOMIC_TYPE_FLOAT, ATOMIC_TYPE_DOUBLE, ATOMIC_TYPE_LONG_DOUBLE, - ATOMIC_TYPE_BOOL, - ATOMIC_TYPE_LAST = ATOMIC_TYPE_BOOL + ATOMIC_TYPE_LAST = ATOMIC_TYPE_LONG_DOUBLE } atomic_type_kind_t; -typedef enum { +typedef enum atomic_type_flag_t { ATOMIC_TYPE_FLAG_NONE = 0, ATOMIC_TYPE_FLAG_SIGNED = 1 << 0, ATOMIC_TYPE_FLAG_INTEGER = 1 << 1, @@ -58,7 +63,7 @@ typedef enum { ATOMIC_TYPE_FLAG_COMPLEX = 1 << 4, } atomic_type_flag_t; -typedef enum { +typedef enum type_qualifier_t { TYPE_QUALIFIER_NONE = 0, TYPE_QUALIFIER_CONST = 1 << 0, TYPE_QUALIFIER_RESTRICT = 1 << 1, @@ -77,6 +82,7 @@ typedef struct atomic_type_t atomic_type_t; typedef struct complex_type_t complex_type_t; typedef struct imaginary_type_t imaginary_type_t; typedef struct pointer_type_t pointer_type_t; +typedef struct reference_type_t reference_type_t; typedef struct function_parameter_t function_parameter_t; typedef struct function_type_t function_type_t; typedef struct compound_type_t compound_type_t; @@ -88,7 +94,14 @@ typedef struct bitfield_type_t bitfield_type_t; typedef struct typeof_type_t typeof_type_t; typedef union type_t type_t; -void init_types(void); +/** + * Initializes the type system. Attempts to set some defaults on the atomic + * types based on a given machine size. + * These type properties are not final but you should adapt them to your system + * as your architecture and operating systems application binary interface (ABI) + * requires. + */ +void init_types(unsigned machine_size); void exit_types(void); void print_type(const type_t *type); @@ -98,17 +111,18 @@ void print_type(const type_t *type); * if symbol is NULL */ void print_type_ext(const type_t *type, const symbol_t *symbol, - const scope_t *scope); + const scope_t *parameters); -void print_type_qualifiers(type_qualifiers_t qualifiers); +typedef enum QualifierSeparators { + QUAL_SEP_NONE = 0, + QUAL_SEP_START = 1U << 0, + QUAL_SEP_END = 1U << 1 +} QualifierSeparators; -void print_enum_definition(const declaration_t *declaration); -void print_compound_definition(const declaration_t *declaration); +void print_type_qualifiers(type_qualifiers_t qualifiers, QualifierSeparators); -/** - * set output stream for the type printer - */ -void type_set_output(FILE *out); +void print_enum_definition(const enum_t *enume); +void print_compound_definition(const compound_t *compound); void inc_type_visited(void); @@ -117,6 +131,11 @@ void inc_type_visited(void); */ bool is_type_integer(const type_t *type); +/** + * Returns true if the given type is an enum type. + */ +bool is_type_enum(const type_t *type); + /** * return true if type contains signed numbers */ @@ -127,13 +146,12 @@ bool is_type_signed(const type_t *type); */ bool is_type_float(const type_t *type); -bool is_type_real(const type_t *type); - /** - * returns true if the type is valid. A type is valid if it contains no - * unresolved references anymore and is not of TYPE_INVALID. + * returns true if type contains complex numbers */ -bool type_valid(const type_t *type); +bool is_type_complex(const type_t *type); + +bool is_type_real(const type_t *type); /** * returns true if the type is an arithmetic type (§6.2.5 clause 18) @@ -152,8 +170,15 @@ bool is_type_object(const type_t *type); bool types_compatible(const type_t *type1, const type_t *type2); type_t *get_unqualified_type(type_t *type); +type_t *get_qualified_type(type_t*, type_qualifiers_t); type_t *skip_typeref(type_t *type); +/** + * Return the type qualifier set of a type. If skip_array_type + * is true, skip all array types. + */ +type_qualifiers_t get_type_qualifier(const type_t *type, bool skip_array_type); + /** * returns size of an atomic type kind in bytes */ @@ -164,14 +189,22 @@ unsigned get_atomic_type_size(atomic_type_kind_t kind); */ unsigned get_atomic_type_alignment(atomic_type_kind_t kind); +unsigned get_type_alignment(type_t *type); +unsigned get_type_size(type_t *type); +decl_modifiers_t get_type_modifiers(const type_t *type); + +/** + * get alignment of a type when used inside a compound. + * Some ABIs are broken and alignment inside a compound is different from + * recommended alignment of a type + */ +unsigned get_type_alignment_compound(type_t *type); + /** * returns flags of an atomic type kind */ unsigned get_atomic_type_flags(atomic_type_kind_t kind); -atomic_type_kind_t get_intptr_kind(void); -atomic_type_kind_t get_uintptr_kind(void); - /** * Find the atomic type kind representing a given size (signed). */ @@ -182,4 +215,18 @@ atomic_type_kind_t find_signed_int_atomic_type_kind_for_size(unsigned size); */ atomic_type_kind_t find_unsigned_int_atomic_type_kind_for_size(unsigned size); +const char *get_atomic_kind_name(atomic_type_kind_t kind); + +/** + * Finish the construction of a struct type by calculating its size, offsets, + * alignment. + */ +void layout_struct_type(compound_type_t *type); + +/** + * Finish the construction of an union type by calculating + * its size and alignment. + */ +void layout_union_type(compound_type_t *type); + #endif