use C linkage for implicit functions
[cparser] / ast_t.h
diff --git a/ast_t.h b/ast_t.h
index 0230f18..ab3e6ee 100644 (file)
--- a/ast_t.h
+++ b/ast_t.h
 #include "symbol.h"
 #include "token_t.h"
 #include "type.h"
+#include "entity_t.h"
 #include "adt/obst.h"
 
 /** The AST obstack contains all data that must stay in the AST. */
 extern struct obstack ast_obstack;
 
+/**
+ * Operator precedence classes
+ */
+typedef enum precedence_t {
+       PREC_BOTTOM,
+       PREC_EXPRESSION,     /* ,                                  left to right */
+       PREC_ASSIGNMENT,     /* = += -= *= /= %= <<= >>= &= ^= |=  right to left */
+       PREC_CONDITIONAL,    /* ?:                                 right to left */
+       PREC_LOGICAL_OR,     /* ||                                 left to right */
+       PREC_LOGICAL_AND,    /* &&                                 left to right */
+       PREC_OR,             /* |                                  left to right */
+       PREC_XOR,            /* ^                                  left to right */
+       PREC_AND,            /* &                                  left to right */
+       PREC_EQUALITY,       /* == !=                              left to right */
+       PREC_RELATIONAL,     /* < <= > >=                          left to right */
+       PREC_SHIFT,          /* << >>                              left to right */
+       PREC_ADDITIVE,       /* + -                                left to right */
+       PREC_MULTIPLICATIVE, /* * / %                              left to right */
+       PREC_CAST,           /* (type)                             right to left */
+       PREC_UNARY,          /* ! ~ ++ -- + - * & sizeof           right to left */
+       PREC_POSTFIX,        /* () [] -> .                         left to right */
+       PREC_PRIMARY,
+       PREC_TOP
+} precedence_t;
+
 /**
  * Expression kinds.
  */
@@ -39,6 +65,7 @@ typedef enum expression_kind_t {
        EXPR_UNKNOWN = 0,
        EXPR_INVALID,
        EXPR_REFERENCE,
+       EXPR_REFERENCE_ENUM_VALUE,
        EXPR_CONST,
        EXPR_CHARACTER_CONSTANT,
        EXPR_WIDE_CHARACTER_CONSTANT,
@@ -61,6 +88,7 @@ typedef enum expression_kind_t {
        EXPR_VA_START,
        EXPR_VA_ARG,
        EXPR_STATEMENT,
+       EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */
 
        EXPR_UNARY_FIRST,
        EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST,
@@ -76,7 +104,10 @@ typedef enum expression_kind_t {
        EXPR_UNARY_CAST,
        EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
        EXPR_UNARY_ASSUME,        /**< MS __assume() */
-       EXPR_UNARY_LAST = EXPR_UNARY_ASSUME,
+       EXPR_UNARY_DELETE,
+       EXPR_UNARY_DELETE_ARRAY,
+       EXPR_UNARY_THROW,
+       EXPR_UNARY_LAST = EXPR_UNARY_THROW,
 
        EXPR_BINARY_FIRST,
        EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
@@ -110,7 +141,6 @@ typedef enum expression_kind_t {
        EXPR_BINARY_BITWISE_OR_ASSIGN,
        EXPR_BINARY_COMMA,
 
-       EXPR_BINARY_BUILTIN_EXPECT,
        EXPR_BINARY_ISGREATER,
        EXPR_BINARY_ISGREATEREQUAL,
        EXPR_BINARY_ISLESS,
@@ -159,7 +189,6 @@ typedef enum funcname_kind_t {
        case EXPR_BINARY_BITWISE_XOR_ASSIGN:   \
        case EXPR_BINARY_BITWISE_OR_ASSIGN:    \
        case EXPR_BINARY_COMMA:                \
-       case EXPR_BINARY_BUILTIN_EXPECT:       \
        case EXPR_BINARY_ISGREATER:            \
        case EXPR_BINARY_ISGREATEREQUAL:       \
        case EXPR_BINARY_ISLESS:               \
@@ -167,7 +196,10 @@ typedef enum funcname_kind_t {
        case EXPR_BINARY_ISLESSGREATER:        \
        case EXPR_BINARY_ISUNORDERED:
 
-#define EXPR_UNARY_CASES                   \
+/**
+ * unary expression with mandatory operand
+ */
+#define EXPR_UNARY_CASES_MANDATORY         \
        case EXPR_UNARY_NEGATE:                \
        case EXPR_UNARY_PLUS:                  \
        case EXPR_UNARY_BITWISE_NEGATE:        \
@@ -180,20 +212,25 @@ typedef enum funcname_kind_t {
        case EXPR_UNARY_PREFIX_DECREMENT:      \
        case EXPR_UNARY_CAST:                  \
        case EXPR_UNARY_CAST_IMPLICIT:         \
-       case EXPR_UNARY_ASSUME:
+       case EXPR_UNARY_ASSUME:                \
+       case EXPR_UNARY_DELETE:                \
+       case EXPR_UNARY_DELETE_ARRAY:
 
 /**
- * A scope containing declarations.
+ * unary expression with optinal operand
  */
-struct scope_t {
-       declaration_t *declarations;      /**< List of declarations in this scope. */
-       declaration_t *last_declaration;  /**< last declaration in this scope. */
-};
+#define EXPR_UNARY_CASES_OPTIONAL \
+       case EXPR_UNARY_THROW:        \
+
+#define EXPR_UNARY_CASES       \
+       EXPR_UNARY_CASES_MANDATORY \
+       EXPR_UNARY_CASES_OPTIONAL
 
 struct expression_base_t {
        expression_kind_t   kind;
        type_t             *type;
        source_position_t   source_position;
+       bool                parenthesized;
 #ifndef NDEBUG
        bool                transformed;
 #endif
@@ -252,7 +289,7 @@ struct builtin_prefetch_expression_t {
 
 struct reference_expression_t {
        expression_base_t  base;
-       declaration_t     *declaration;
+       entity_t          *entity;
 };
 
 struct call_argument_t {
@@ -280,16 +317,14 @@ struct binary_expression_t {
 struct select_expression_t {
        expression_base_t  base;
        expression_t      *compound;
-       symbol_t          *symbol;
-
-       declaration_t     *compound_entry;
+       entity_t          *compound_entry;
 };
 
 struct array_access_expression_t {
        expression_base_t  base;
        expression_t      *array_ref;
        expression_t      *index;
-       bool               flipped; /* index/ref was written in a 5[a] way */
+       bool               flipped; /**< index/ref was written in a 5[a] way */
 };
 
 struct typeprop_expression_t {
@@ -314,7 +349,7 @@ struct offsetof_expression_t {
 struct va_start_expression_t {
        expression_base_t  base;
        expression_t      *ap;
-       declaration_t     *parameter;
+       variable_t        *parameter;
 };
 
 struct va_arg_expression_t {
@@ -339,6 +374,11 @@ struct classify_type_expression_t {
        expression_t      *type_expression;
 };
 
+struct label_address_expression_t {
+       expression_base_t  base;
+       label_t           *label;
+};
+
 union expression_t {
        expression_kind_t                kind;
        expression_base_t                base;
@@ -363,29 +403,9 @@ union expression_t {
        conditional_expression_t         conditional;
        statement_expression_t           statement;
        classify_type_expression_t       classify_type;
+       label_address_expression_t       label_address;
 };
 
-typedef enum storage_class_tag_t {
-       STORAGE_CLASS_NONE,
-       STORAGE_CLASS_EXTERN,
-       STORAGE_CLASS_STATIC,
-       STORAGE_CLASS_TYPEDEF,
-       STORAGE_CLASS_AUTO,
-       STORAGE_CLASS_REGISTER,
-       STORAGE_CLASS_ENUM_ENTRY,
-       STORAGE_CLASS_THREAD,
-       STORAGE_CLASS_THREAD_EXTERN,
-       STORAGE_CLASS_THREAD_STATIC,
-} storage_class_tag_t;
-
-typedef enum namespace_t {
-       NAMESPACE_NORMAL,
-       NAMESPACE_STRUCT,
-       NAMESPACE_UNION,
-       NAMESPACE_ENUM,
-       NAMESPACE_LABEL,
-} namespace_t;
-
 typedef enum initializer_kind_t {
        INITIALIZER_VALUE,
        INITIALIZER_LIST,
@@ -506,86 +526,13 @@ typedef enum gnu_attribute_kind_t {
        GNU_AK_LAST
 } gnu_attribute_kind_t;
 
-/**
- * Extended microsoft modifier.
- */
-typedef enum decl_modifier_t {
-       DM_DLLIMPORT         = 1 <<  0,
-       DM_DLLEXPORT         = 1 <<  1,
-       DM_THREAD            = 1 <<  2,
-       DM_NAKED             = 1 <<  3,
-       DM_MICROSOFT_INLINE  = 1 <<  4,
-       DM_FORCEINLINE       = 1 <<  5,
-       DM_SELECTANY         = 1 <<  6,
-       DM_NOTHROW           = 1 <<  7,
-       DM_NOVTABLE          = 1 <<  8,
-       DM_NORETURN          = 1 <<  9,
-       DM_NOINLINE          = 1 << 10,
-       DM_RESTRICT          = 1 << 11,
-       DM_NOALIAS           = 1 << 12,
-       DM_PACKED            = 1 << 13,
-       DM_TRANSPARENT_UNION = 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
-} decl_modifier_t;
-
-typedef unsigned decl_modifiers_t;
-
-struct declaration_t {
-       unsigned char       namespc;
-       unsigned char       declared_storage_class;
-       unsigned char       storage_class;
-       unsigned char       alignment;          /**< Alignment of the declaration, 0 for default. */
-       decl_modifiers_t    modifiers;          /**< modifiers. */
-       const char         *deprecated_string;  /**< MS deprecated string if any. */
-       symbol_t           *get_property_sym;   /**< MS get property. */
-       symbol_t           *put_property_sym;   /**< MS put property. */
-       unsigned int        address_taken : 1;
-       unsigned int        is_inline     : 1;
-       unsigned int        used          : 1;  /**< Set if the declaration is used. */
-       type_t             *type;
-       symbol_t           *symbol;
-       source_position_t   source_position;
-       union {
-               bool            complete;           /**< used to indicate wether struct/union types are already defined or if just the name is declared */
-               statement_t    *statement;
-               initializer_t  *initializer;
-               expression_t   *enum_value;
-       } init;
-       scope_t             scope;              /**< The scope that this declaration opens. */
-       scope_t            *parent_scope;       /**< The parent scope where this declaration lives. */
-
-       /** next declaration in a scope */
-       declaration_t      *next;
-       /** next declaration with same symbol */
-       declaration_t      *symbol_next;
-
-       /* the following fields are used in ast2firm module */
-       unsigned char       declaration_kind;
-       union {
-               unsigned int  value_number;
-               ir_entity    *entity;
-               ir_node      *block;
-               ir_node      *vla_base;
-               tarval       *enum_val;
-               ir_type      *irtype;
-       } v;
-};
-
 typedef enum statement_kind_t {
        STATEMENT_INVALID,
        STATEMENT_EMPTY,
        STATEMENT_COMPOUND,
        STATEMENT_RETURN,
        STATEMENT_DECLARATION,
+       STATEMENT_LOCAL_LABEL,
        STATEMENT_IF,
        STATEMENT_SWITCH,
        STATEMENT_EXPRESSION,
@@ -598,8 +545,8 @@ typedef enum statement_kind_t {
        STATEMENT_DO_WHILE,
        STATEMENT_FOR,
        STATEMENT_ASM,
-       STATEMENT_MS_TRY,
-       STATEMENT_LEAVE
+       STATEMENT_MS_TRY,          /**< MS __try/__finally or __try/__except */
+       STATEMENT_LEAVE            /**< MS __leave */
 } statement_kind_t;
 
 struct statement_base_t {
@@ -634,8 +581,14 @@ struct compound_statement_t {
 
 struct declaration_statement_t {
        statement_base_t  base;
-       declaration_t    *declarations_begin;
-       declaration_t    *declarations_end;
+       entity_t         *declarations_begin;
+       entity_t         *declarations_end;
+};
+
+struct local_label_statement_t {
+       statement_base_t  base;
+       entity_t         *labels_begin;
+       entity_t         *labels_end;
 };
 
 struct if_statement_t {
@@ -646,29 +599,36 @@ struct if_statement_t {
 };
 
 struct switch_statement_t {
-       statement_base_t       base;
+       statement_base_t        base;
        expression_t           *expression;
        statement_t            *body;
-       case_label_statement_t *first_case, *last_case;
+       case_label_statement_t *first_case, *last_case;  /**< List of all cases, including default. */
+       case_label_statement_t *default_label;           /**< The default label if existent. */
+       unsigned long           default_proj_nr;         /**< The Proj-number for the default Proj. */
 };
 
 struct goto_statement_t {
        statement_base_t  base;
-       declaration_t    *label;     /**< The destination label. */
-       goto_statement_t *next;      /**< links all goto statements of a function */
+       label_t          *label;         /**< The destination label. */
+       expression_t     *expression;    /**< The expression for an assigned goto. */
+       goto_statement_t *next;          /**< links all goto statements of a function */
 };
 
 struct case_label_statement_t {
        statement_base_t        base;
-       expression_t           *expression;  /**< The case label expression, NULL for default label. */
-       expression_t           *end_range;   /**< For GNUC case a .. b: the end range expression, NULL else. */
+       expression_t           *expression;    /**< The case label expression, NULL for default label. */
+       expression_t           *end_range;     /**< For GNUC case a .. b: the end range expression, NULL else. */
+       case_label_statement_t *next;          /**< link to the next case label in switch */
        statement_t            *statement;
-       case_label_statement_t *next; /**< link to the next case label in switch */
+       long                   first_case;     /**< The folded value of expression. */
+       long                   last_case;      /**< The folded value of end_range. */
+       bool                   is_bad;         /**< If set marked as bad to suppress warnings. */
+       bool                   is_empty_range; /**< If set marked this as an empty range. */
 };
 
 struct label_statement_t {
        statement_base_t   base;
-       declaration_t     *label;
+       label_t           *label;
        statement_t       *statement;
        label_statement_t *next;    /**< links all label statements of a function */
 };
@@ -739,6 +699,7 @@ union statement_t {
        return_statement_t       returns;
        compound_statement_t     compound;
        declaration_statement_t  declaration;
+       local_label_statement_t  local_label;
        if_statement_t           ifs;
        switch_statement_t       switchs;
        goto_statement_t         gotos;