main: rework preprocessor invocation
[cparser] / entity_t.h
index e6ad01f..e1a26ed 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ * 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
 #ifndef ENTITY_T_H
 #define ENTITY_T_H
 
-#include "lexer.h"
 #include "symbol.h"
 #include "entity.h"
+#include "attribute.h"
 #include <libfirm/firm_types.h>
+#include "builtins.h"
+#include "jump_target.h"
+#include "token_t.h"
 
 typedef enum {
-       ENTITY_INVALID,
-       ENTITY_VARIABLE,
+       ENTITY_VARIABLE = 1,
        ENTITY_COMPOUND_MEMBER,
        ENTITY_PARAMETER,
        ENTITY_FUNCTION,
        ENTITY_TYPEDEF,
+       ENTITY_CLASS,
        ENTITY_STRUCT,
        ENTITY_UNION,
        ENTITY_ENUM,
@@ -43,11 +46,8 @@ typedef enum {
 typedef unsigned char entity_kind_t;
 
 typedef enum namespace_tag_t {
-       NAMESPACE_INVALID,
-       NAMESPACE_NORMAL,
-       NAMESPACE_STRUCT,
-       NAMESPACE_UNION,
-       NAMESPACE_ENUM,
+       NAMESPACE_NORMAL = 1,
+       NAMESPACE_TAG,
        NAMESPACE_LABEL
 } namespace_tag_t;
 typedef unsigned char entity_namespace_t;
@@ -77,32 +77,40 @@ typedef enum decl_modifier_t {
        DM_NOINLINE          = 1 << 10,
        DM_RESTRICT          = 1 << 11,
        DM_NOALIAS           = 1 << 12,
-       DM_PACKED            = 1 << 13,
-       DM_TRANSPARENT_UNION = 1 << 14,
-       DM_CONST             = 1 << 15,
-       DM_PURE              = 1 << 16,
-       DM_CONSTRUCTOR       = 1 << 17,
-       DM_DESTRUCTOR        = 1 << 18,
-       DM_UNUSED            = 1 << 19,
-       DM_USED              = 1 << 20,
-       DM_CDECL             = 1 << 21,
-       DM_FASTCALL          = 1 << 22,
-       DM_STDCALL           = 1 << 23,
-       DM_THISCALL          = 1 << 24,
-       DM_DEPRECATED        = 1 << 25,
-       DM_RETURNS_TWICE     = 1 << 26,
+       DM_TRANSPARENT_UNION = 1 << 13,
+       DM_CONST             = 1 << 14,
+       DM_PURE              = 1 << 15,
+       DM_CONSTRUCTOR       = 1 << 16,
+       DM_DESTRUCTOR        = 1 << 17,
+       DM_UNUSED            = 1 << 18,
+       DM_USED              = 1 << 19,
+       DM_CDECL             = 1 << 20,
+       DM_FASTCALL          = 1 << 21,
+       DM_STDCALL           = 1 << 22,
+       DM_THISCALL          = 1 << 23,
+       DM_DEPRECATED        = 1 << 24,
+       DM_RETURNS_TWICE     = 1 << 25,
+       DM_MALLOC            = 1 << 26,
+       DM_WEAK              = 1 << 27,
+       DM_LEAF              = 1 << 28,
 } decl_modifier_t;
 
-typedef unsigned decl_modifiers_t;
+typedef enum elf_visibility_tag_t {
+       ELF_VISIBILITY_DEFAULT,
+       ELF_VISIBILITY_HIDDEN,
+       ELF_VISIBILITY_INTERNAL,
+       ELF_VISIBILITY_PROTECTED,
+       ELF_VISIBILITY_ERROR
+} elf_visibility_tag_t;
 
 /**
  * A scope containing entities.
  */
 struct scope_t {
        entity_t *entities;
-       entity_t *last_entity;
-       unsigned  depth;        /**< while parsing, the depth of this scope in the
-                                    scope stack. */
+       entity_t *last_entity; /**< pointer to last entity (so appending is fast) */
+       unsigned  depth;       /**< while parsing, the depth of this scope in the
+                                   scope stack. */
 };
 
 /**
@@ -116,6 +124,7 @@ struct entity_base_t {
        source_position_t   source_position;
        scope_t            *parent_scope;    /**< The scope where this entity
                                                                                      is contained in */
+       entity_t           *parent_entity;
 
        /** next declaration in a scope */
        entity_t           *next;
@@ -128,7 +137,14 @@ struct compound_t {
        entity_t         *alias; /* used for name mangling of anonymous types */
        scope_t           members;
        decl_modifiers_t  modifiers;
-       bool              complete            : 1;
+       attribute_t      *attributes;
+       bool              layouted          : 1;
+       bool              complete          : 1;
+       bool              transparent_union : 1;
+       bool              packed            : 1;
+
+       il_alignment_t    alignment;
+       il_size_t         size;
 
        /* ast2firm info */
        ir_type          *irtype;
@@ -150,17 +166,19 @@ struct enum_value_t {
        type_t        *enum_type;
 
        /* ast2firm info */
-       tarval        *tv;
+       ir_tarval     *tv;
 };
 
 struct label_t {
        entity_base_t  base;
        bool           used : 1;
        bool           address_taken : 1;
+       unsigned       n_users; /* Reference counter to mature the label block as early as possible. */
        statement_t   *statement;
 
        /* ast2firm info */
-       ir_node       *block;
+       jump_target    target;
+       ir_node       *indirect_block;
 };
 
 struct namespace_t {
@@ -172,18 +190,20 @@ struct typedef_t {
        entity_base_t     base;
        decl_modifiers_t  modifiers;
        type_t           *type;
+       il_alignment_t    alignment;
        bool              builtin : 1;
 };
 
 struct declaration_t {
        entity_base_t     base;
+       type_t           *type;
        storage_class_t   declared_storage_class;
        storage_class_t   storage_class;
        decl_modifiers_t  modifiers;
-       const char       *deprecated_string;  /**< MS deprecated string if any. */
-       bool              used          : 1;  /**< Set if the declaration is used. */
-       bool              implicit      : 1;  /**< Set for implicit (not found in source code) declarations. */
-       type_t           *type;
+       il_alignment_t    alignment;
+       attribute_t      *attributes;
+       bool              used     : 1;  /**< Set if the declaration is used. */
+       bool              implicit : 1;  /**< Set for implicit (not found in source code) declarations. */
 
        /* ast2firm info */
        unsigned char     kind;
@@ -191,121 +211,59 @@ struct declaration_t {
 
 struct compound_member_t {
        declaration_t  base;
-       unsigned char  alignment;
-       bool           read          : 1;
-       bool           address_taken : 1;  /**< Set if the address of this declaration was taken. */
+       il_size_t      offset;     /**< the offset of this member in the compound */
+       unsigned char  bit_offset; /**< extra bit offset for bitfield members */
+       unsigned char  bit_size;   /**< bitsize for bitfield members */
+       bool           bitfield      : 1;  /**< member is (part of) a bitfield */
 
        /* ast2firm info */
        ir_entity *entity;
-       il_size_t  offset;  /**< The offset of this member inside a compound. */
 };
 
 struct variable_t {
-       declaration_t  base;
-       bool           thread_local  : 1;  /**< GCC __thread */
-       bool           address_taken : 1;  /**< Set if the address of this declaration was taken. */
-       bool           read          : 1;
-       unsigned char  alignment;
-       symbol_t      *get_property_sym;   /**< MS get property. */
-       symbol_t      *put_property_sym;   /**< MS put property. */
+       declaration_t     base;
+       bool              thread_local   : 1;
 
-       initializer_t *initializer;
+       bool              address_taken  : 1;  /**< Set if the address of this declaration was taken. */
+       bool              read           : 1;
+       unsigned          elf_visibility : 2;
 
-       /* ast2firm info */
-       union {
-               unsigned int  value_number;
-               ir_entity    *entity;
-               ir_node      *vla_base;
-       } v;
-};
-
-struct parameter_t {
-       declaration_t  base;
-       bool           address_taken : 1;
-       bool           read          : 1;
+       initializer_t    *initializer;
 
        /* ast2firm info */
        union {
                unsigned int  value_number;
                ir_entity    *entity;
+               ir_node      *vla_base;
        } v;
 };
 
-/**
- * GNU builtin or MS intrinsic functions.
- */
-typedef enum builtin_kind_t {
-       bk_none = 0,                   /**< no builtin */
-       bk_gnu_builtin_alloca,         /**< GNU __builtin_alloca */
-       bk_gnu_builtin_huge_val,       /**< GNU __builtin_huge_val */
-       bk_gnu_builtin_inf,            /**< GNU __builtin_inf */
-       bk_gnu_builtin_inff,           /**< GNU __builtin_inff */
-       bk_gnu_builtin_infl,           /**< GNU __builtin_infl */
-       bk_gnu_builtin_nan,            /**< GNU __builtin_nan */
-       bk_gnu_builtin_nanf,           /**< GNU __builtin_nanf */
-       bk_gnu_builtin_nanl,           /**< GNU __builtin_nanl */
-       bk_gnu_builtin_va_end,         /**< GNU __builtin_va_end */
-       bk_gnu_builtin_expect,         /**< GNU __builtin_expect */
-       bk_gnu_builtin_return_address, /**< GNU __builtin_return_address */
-       bk_gnu_builtin_frame_address,  /**< GNU __builtin_frame_address */
-       bk_gnu_builtin_ffs,            /**< GNU __builtin_ffs */
-       bk_gnu_builtin_clz,            /**< GNU __builtin_clz */
-       bk_gnu_builtin_ctz,            /**< GNU __builtin_ctz */
-       bk_gnu_builtin_popcount,       /**< GNU __builtin_popcount */
-       bk_gnu_builtin_parity,         /**< GNU __builtin_parity */
-       bk_gnu_builtin_prefetch,       /**< GNU __builtin_prefetch */
-       bk_gnu_builtin_trap,           /**< GNU __builtin_trap */
-
-       bk_ms_rotl,                    /**< MS _rotl */
-       bk_ms_rotr,                    /**< MS _rotr */
-       bk_ms_rotl64,                  /**< MS _rotl64 */
-       bk_ms_rotr64,                  /**< MS _rotr64 */
-       bk_ms_byteswap_ushort,         /**< MS _byteswap_ushort */
-       bk_ms_byteswap_ulong,          /**< MS _byteswap_ulong */
-       bk_ms_byteswap_uint64,         /**< MS _byteswap_uint64 */
-
-       bk_ms__debugbreak,             /**< MS __debugbreak */
-       bk_ms_ReturnAddress,           /**< MS _ReturnAddress */
-       bk_ms_AddressOfReturnAddress,  /**< MS _AddressOfReturnAddress */
-       bk_ms__popcount,               /**< MS __popcount */
-       bk_ms_enable,                  /**< MS _enable */
-       bk_ms_disable,                 /**< MS _disable */
-       bk_ms__inbyte,                 /**< MS __inbyte */
-       bk_ms__inword,                 /**< MS __inword */
-       bk_ms__indword,                /**< MS __indword */
-       bk_ms__outbyte,                /**< MS __outbyte */
-       bk_ms__outword,                /**< MS __outword */
-       bk_ms__outdword,               /**< MS __outdword */
-       bk_ms__ud2,                    /**< MS __ud2 */
-       bk_ms_BitScanForward,          /**< MS _BitScanForward */
-       bk_ms_BitScanReverse,          /**< MS _BitScanReverse */
-       bk_ms_InterlockedExchange,     /**< MS _InterlockedExchange */
-       bk_ms_InterlockedExchange64,   /**< MS _InterlockedExchange64 */
-       bk_ms__readeflags,             /**< MS __readflags */
-       bk_ms__writeeflags,            /**< MS __writeflags */
-} builtin_kind_t;
-
 struct function_t {
        declaration_t  base;
-       bool           is_inline     : 1;
-       bool           need_closure  : 1;  /**< Inner function needs closure. */
-       bool           goto_to_outer : 1;  /**< Inner function has goto to outer function. */
+       bool           is_inline      : 1;
+
+       bool           need_closure   : 1;  /**< Inner function needs closure. */
+       bool           goto_to_outer  : 1;  /**< Inner function has goto to outer function. */
+       unsigned       elf_visibility : 2;
 
        builtin_kind_t btk;
        scope_t        parameters;
-       statement_t   *statement;
+       statement_t   *body;
+       symbol_t      *actual_name;        /**< gnu extension __REDIRECT */
 
        /* ast2firm info */
-       ir_entity     *entity;
-       ir_node       *static_link;        /**< if need_closure is set, the node representing
-                                                                                   the static link. */
+       union {
+               ir_builtin_kind firm_builtin_kind;
+               unsigned        chk_arg_pos;
+       } b;
+       ir_entity      *irentity;
+       ir_node        *static_link;        /**< if need_closure is set, the node
+                                                representing the static link. */
 };
 
 union entity_t {
        entity_kind_t      kind;
        entity_base_t      base;
-       compound_t         structe;
-       compound_t         unione;
        compound_t         compound;
        enum_t             enume;
        enum_value_t       enum_value;
@@ -314,19 +272,32 @@ union entity_t {
        typedef_t          typedefe;
        declaration_t      declaration;
        variable_t         variable;
-       parameter_t        parameter;
        function_t         function;
        compound_member_t  compound_member;
 };
 
+#define DECLARATION_KIND_CASES \
+            ENTITY_FUNCTION:        \
+       case ENTITY_VARIABLE:        \
+       case ENTITY_PARAMETER:       \
+       case ENTITY_COMPOUND_MEMBER
+
 static inline bool is_declaration(const entity_t *entity)
 {
-       return entity->kind == ENTITY_FUNCTION || entity->kind == ENTITY_VARIABLE
-               || entity->kind == ENTITY_PARAMETER
-               || entity->kind == ENTITY_COMPOUND_MEMBER;
+       switch(entity->kind) {
+       case DECLARATION_KIND_CASES:
+               return true;
+       default:
+               return false;
+       }
 }
 
-
 const char *get_entity_kind_name(entity_kind_t kind);
 
+entity_t *allocate_entity_zero(entity_kind_t, entity_namespace_t, symbol_t*, source_position_t const*);
+
+elf_visibility_tag_t get_elf_visibility_from_string(const char *string);
+
+entity_t *skip_unnamed_bitfields(entity_t*);
+
 #endif