X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type.h;h=54018fedc34752718d505d09551dcb4a0252bb5e;hb=refs%2Fheads%2Falias;hp=33300a9d5e78dfd28a4a7cf2179a661c68b43ba7;hpb=59b11d82a27344b8c4b0df847453686945850943;p=cparser diff --git a/type.h b/type.h index 33300a9..54018fe 100644 --- a/type.h +++ b/type.h @@ -1,13 +1,70 @@ +/* + * This file is part of cparser. + * Copyright (C) 2012 Matthias Braun + */ #ifndef TYPE_H #define TYPE_H #include #include + +#include "entity.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 atomic_type_kind_t { + ATOMIC_TYPE_VOID = 1, + ATOMIC_TYPE_BOOL, + ATOMIC_TYPE_WCHAR_T, /* only used in C++, in C code wchar_t is a pp-macro */ + ATOMIC_TYPE_CHAR, + ATOMIC_TYPE_SCHAR, + ATOMIC_TYPE_UCHAR, + ATOMIC_TYPE_SHORT, + ATOMIC_TYPE_USHORT, + ATOMIC_TYPE_INT, + ATOMIC_TYPE_UINT, + ATOMIC_TYPE_LONG, + ATOMIC_TYPE_ULONG, + ATOMIC_TYPE_LONGLONG, + ATOMIC_TYPE_ULONGLONG, + ATOMIC_TYPE_FLOAT, + ATOMIC_TYPE_DOUBLE, + ATOMIC_TYPE_LONG_DOUBLE, + + ATOMIC_TYPE_LAST = ATOMIC_TYPE_LONG_DOUBLE +} atomic_type_kind_t; + +typedef enum atomic_type_flag_t { + ATOMIC_TYPE_FLAG_NONE = 0, + ATOMIC_TYPE_FLAG_SIGNED = 1 << 0, + ATOMIC_TYPE_FLAG_INTEGER = 1 << 1, + ATOMIC_TYPE_FLAG_FLOAT = 1 << 2, + ATOMIC_TYPE_FLAG_ARITHMETIC = 1 << 3, +} atomic_type_flag_t; + +typedef enum type_qualifier_t { + TYPE_QUALIFIER_NONE = 0, + TYPE_QUALIFIER_CONST = 1 << 0, + TYPE_QUALIFIER_RESTRICT = 1 << 1, + TYPE_QUALIFIER_VOLATILE = 1 << 2, + /* microsoft extended qualifiers */ + TYPE_QUALIFIER_W64 = 1 << 3, + TYPE_QUALIFIER_PTR32 = 1 << 4, + TYPE_QUALIFIER_PTR64 = 1 << 5, + TYPE_QUALIFIER_SPTR = 1 << 6, + TYPE_QUALIFIER_UPTR = 1 << 7, +} type_qualifier_t; +typedef unsigned short type_qualifiers_t; + typedef struct type_base_t type_base_t; typedef struct atomic_type_t atomic_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; @@ -15,70 +72,193 @@ typedef struct enum_type_t enum_type_t; typedef struct builtin_type_t builtin_type_t; typedef struct array_type_t array_type_t; typedef struct typedef_type_t typedef_type_t; +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(type_t *type); +/** + * Prints a type. + * + * @param type The type. + */ +void print_type(const type_t *type); /** * prints a human readable form of @p type. prints an abstract typename * if symbol is NULL */ -void print_type_ext(type_t *type, const symbol_t *symbol, - const context_t *context); +void print_type_ext(const type_t *type, const symbol_t *symbol, + const scope_t *parameters); -void print_type_qualifiers(unsigned 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); + +/** + * Prints an enum definition. + * + * @param declaration The enum's type declaration. + */ +void print_enum_definition(const enum_t *enume); /** - * set output stream for the type printer + * Print the compound part of a compound type. */ -void type_set_output(FILE *out); +void print_compound_definition(const compound_t *compound); void inc_type_visited(void); /** - * returns true if type contains integer numbers + * Returns true if the given type is an integer type. + * + * @param type The type to check. + * @return True if type is an integer type. */ bool is_type_integer(const type_t *type); /** - * return true if type contains signed numbers + * Returns true if the given type is an enum type. + * + * @param type The type to check. + * @return True if type is an enum type. + */ +bool is_type_enum(const type_t *type); + +/** + * Returns true if the given type is a signed type. + * + * @param type The type to check. + * @return True if type is a signed type. */ bool is_type_signed(const type_t *type); /** - * returns true if type contains floating point numbers + * Returns true if the given type is a floating point type. + * + * @param type The type to check. + * @return True if type is a floating point type. */ -bool is_type_floating(const type_t *type); +bool is_type_float(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 the given type is a complex type. + * + * @param type The type to check. + * @return True if type is a complex type. */ -bool type_valid(const type_t *type); +bool is_type_complex(const type_t *type); /** - * returns true if the type is an arithmetic type (6.2.18) + * Returns true if the given type is an integer or float type. + * + * @param type The type to check. + * @return True if type is an integer or float type. + */ +bool is_type_real(const type_t *type); + +/** + * Returns true if the type is an arithmetic type (§6.2.5 clause 18) + * + * @param type The type to check. + * @return True if type represents an arithmetic type. */ bool is_type_arithmetic(const type_t *type); /** - * returns true if the type is a scalar type (6.2.21) + * Returns true if the type is a scalar type (§6.2.5 clause 21) + * + * @param type The type to check. + * @return True if type represents a scalar type. */ bool is_type_scalar(const type_t *type); +/** + * Check if a given type is incomplete. + * + * @param type The type to check. + * @return True if the given type is incomplete (i.e. just forward). + */ bool is_type_incomplete(const type_t *type); +bool is_type_object(const type_t *type); + +/** + * Check if two types are compatible. + */ bool types_compatible(const type_t *type1, const type_t *type2); -bool pointers_compatible(const type_t *type1, const type_t *type2); +/** + * Returns the unqualified type of a given type. + * + * @param type The type. + * @returns The unqualified type. + */ +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 + */ +unsigned get_atomic_type_size(atomic_type_kind_t kind); + +/** + * returns alignment of an atomic type kind in bytes + */ +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); + +/** + * returns flags of an atomic type kind + */ +unsigned get_atomic_type_flags(atomic_type_kind_t kind); + +/** + * Find the atomic type kind representing a given size (signed). + */ +atomic_type_kind_t find_signed_int_atomic_type_kind_for_size(unsigned size); + +/** + * Find the atomic type kind representing a given size (unsigned). + */ +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