X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_t.h;h=b0c21ac41c31779dfe46a49f3b93f2dd66d8d5be;hb=0a880c90fd6d1ec23c4ec1956f3b92694ec0a139;hp=600222d8670ac27d31479d1affa3c68ef6c3900a;hpb=9634f9c53e95b6bdc7883228c5ec5147f3de4f8e;p=cparser diff --git a/type_t.h b/type_t.h index 600222d..b0c21ac 100644 --- a/type_t.h +++ b/type_t.h @@ -32,8 +32,7 @@ #include "adt/obst.h" typedef enum type_kind_t { - TYPE_INVALID, - TYPE_ERROR, + TYPE_ERROR = 1, TYPE_ATOMIC, TYPE_COMPLEX, TYPE_IMAGINARY, @@ -44,7 +43,6 @@ typedef enum type_kind_t { TYPE_POINTER, TYPE_REFERENCE, TYPE_ARRAY, - TYPE_BITFIELD, TYPE_TYPEDEF, TYPE_TYPEOF, } type_kind_t; @@ -57,21 +55,14 @@ struct type_base_t { ir_type *firm_type; }; +/** + * used for atomic types, complex and imaginary + */ 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; @@ -108,8 +99,7 @@ struct function_parameter_t { /** 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; @@ -146,8 +136,7 @@ struct compound_type_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 */ @@ -167,19 +156,10 @@ struct typeof_type_t { 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; @@ -187,10 +167,26 @@ union type_t { 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; @@ -205,7 +201,16 @@ 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) @@ -224,6 +229,11 @@ static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype) 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)); @@ -273,6 +283,14 @@ static inline bool is_type_valid(const type_t *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; +} + /** * Allocate a type node of given kind and initialize all * fields with zero. @@ -287,7 +305,8 @@ type_t *allocate_type_zero(type_kind_t kind); * * @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 @@ -296,7 +315,8 @@ type_t *make_function_0_type(type_t *return_type); * @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); /** @@ -304,7 +324,8 @@ type_t *make_function_1_type(type_t *return_type, type_t *argument_type1); * 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 @@ -313,7 +334,9 @@ type_t *make_function_2_type(type_t *return_type, type_t *argument_type1, * @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