X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=15d87358dce61a24f02ab8b8b1d5c3f6e950f82d;hb=103d024a3572a6607bd7d18a129b93d2dbfeff82;hp=b859b2a755dd4be511606f31fcc52b1d21dbfabb;hpb=b921ac1ac8be2f2b3d51c08aa07fb27debd8188d;p=cparser diff --git a/ast_t.h b/ast_t.h index b859b2a..15d8735 100644 --- a/ast_t.h +++ b/ast_t.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 @@ -66,9 +66,15 @@ typedef enum expression_kind_t { EXPR_INVALID, EXPR_REFERENCE, EXPR_REFERENCE_ENUM_VALUE, - EXPR_CONST, - EXPR_CHARACTER_CONSTANT, - EXPR_WIDE_CHARACTER_CONSTANT, + EXPR_LITERAL_BOOLEAN, + EXPR_LITERAL_INTEGER, + EXPR_LITERAL_INTEGER_OCTAL, + EXPR_LITERAL_INTEGER_HEXADECIMAL, + EXPR_LITERAL_FLOATINGPOINT, + EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL, + EXPR_LITERAL_CHARACTER, + EXPR_LITERAL_WIDE_CHARACTER, + EXPR_LITERAL_MS_NOOP, /**< MS __noop extension */ EXPR_STRING_LITERAL, EXPR_WIDE_STRING_LITERAL, EXPR_COMPOUND_LITERAL, @@ -81,13 +87,12 @@ typedef enum expression_kind_t { EXPR_ALIGNOF, EXPR_FUNCNAME, - EXPR_BUILTIN_SYMBOL, EXPR_BUILTIN_CONSTANT_P, EXPR_BUILTIN_TYPES_COMPATIBLE_P, - EXPR_BUILTIN_PREFETCH, EXPR_OFFSETOF, EXPR_VA_START, EXPR_VA_ARG, + EXPR_VA_COPY, EXPR_STATEMENT, EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */ @@ -227,6 +232,17 @@ typedef enum funcname_kind_t { EXPR_UNARY_CASES_MANDATORY \ EXPR_UNARY_CASES_OPTIONAL +#define EXPR_LITERAL_CASES \ + case EXPR_LITERAL_BOOLEAN: \ + case EXPR_LITERAL_INTEGER: \ + case EXPR_LITERAL_INTEGER_OCTAL: \ + case EXPR_LITERAL_INTEGER_HEXADECIMAL: \ + case EXPR_LITERAL_FLOATINGPOINT: \ + case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: \ + case EXPR_LITERAL_CHARACTER: \ + case EXPR_LITERAL_WIDE_CHARACTER: \ + case EXPR_LITERAL_MS_NOOP: + /** * The base class of every expression. */ @@ -234,22 +250,22 @@ struct expression_base_t { expression_kind_t kind; /**< The expression kind. */ type_t *type; /**< The type of the expression. */ source_position_t source_position; /**< The source position of this expression. */ - bool parenthesized; + bool parenthesized : 1; #ifndef NDEBUG - bool transformed; /**< Set if this expression was transformed. */ + bool transformed : 1; /**< Set if this expression was transformed. */ #endif }; -struct const_expression_t { +/** + * integer/float constants, character and string literals + */ +struct literal_expression_t { expression_base_t base; - union { - long long int_value; - long double float_value; - string_t character; - wide_string_t wide_character; - } v; - bool is_ms_noop; /**< True, if this constant is the result - of an microsoft __noop operator */ + string_t value; + symbol_t *suffix; + + /* ast2firm data */ + ir_tarval *target_value; }; struct string_literal_expression_t { @@ -263,22 +279,12 @@ struct funcname_expression_t { string_t value; /**< the value once assigned. */ }; -struct wide_string_literal_expression_t { - expression_base_t base; - wide_string_t value; -}; - struct compound_literal_expression_t { expression_base_t base; type_t *type; initializer_t *initializer; }; -struct builtin_symbol_expression_t { - expression_base_t base; - symbol_t *symbol; -}; - struct builtin_constant_expression_t { expression_base_t base; expression_t *value; @@ -290,32 +296,30 @@ struct builtin_types_compatible_expression_t { type_t *right; }; -struct builtin_prefetch_expression_t { - expression_base_t base; - expression_t *adr; - expression_t *rw; - expression_t *locality; -}; - struct reference_expression_t { expression_base_t base; entity_t *entity; }; +/** + * An argument of a call. + */ struct call_argument_t { - expression_t *expression; - call_argument_t *next; + expression_t *expression; /**< The expression which value is transmitted. */ + call_argument_t *next; /**< Links to the next argument of this call. */ }; + struct call_expression_t { expression_base_t base; - expression_t *function; - call_argument_t *arguments; + expression_t *function; /**< The address of the function to call. */ + call_argument_t *arguments; /**< List of arguments of this call. */ }; + struct unary_expression_t { expression_base_t base; - expression_t *value; + expression_t *value; /**< The unary operand. */ }; struct binary_expression_t { @@ -328,13 +332,15 @@ struct select_expression_t { expression_base_t base; expression_t *compound; entity_t *compound_entry; + bool implicit : 1; /**< compiler generated select + (for anonymous struct/union) */ }; 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 */ + expression_t *array_ref; /**< the referenced array */ + expression_t *index; /**< the index used */ + bool flipped; /**< True if index/ref was written in a 5[a] way */ }; struct typeprop_expression_t { @@ -345,8 +351,8 @@ struct typeprop_expression_t { struct designator_t { source_position_t source_position; - symbol_t *symbol; - expression_t *array_index; + symbol_t *symbol; /**< the symbol if any */ + expression_t *array_index; /**< the array index if any */ designator_t *next; }; @@ -367,6 +373,12 @@ struct va_arg_expression_t { expression_t *ap; }; +struct va_copy_expression_t { + expression_base_t base; + expression_t *dst; /**< destination argument */ + expression_t *src; /**< source argument */ +}; + struct conditional_expression_t { expression_base_t base; expression_t *condition; @@ -392,15 +404,12 @@ struct label_address_expression_t { union expression_t { expression_kind_t kind; expression_base_t base; - const_expression_t conste; + literal_expression_t literal; + string_literal_expression_t string_literal; funcname_expression_t funcname; - string_literal_expression_t string; - wide_string_literal_expression_t wide_string; compound_literal_expression_t compound_literal; - builtin_symbol_expression_t builtin_symbol; builtin_constant_expression_t builtin_constant; builtin_types_compatible_expression_t builtin_types_compatible; - builtin_prefetch_expression_t builtin_prefetch; reference_expression_t reference; call_expression_t call; unary_expression_t unary; @@ -411,6 +420,7 @@ union expression_t { offsetof_expression_t offsetofe; va_start_expression_t va_starte; va_arg_expression_t va_arge; + va_copy_expression_t va_copye; conditional_expression_t conditional; statement_expression_t statement; classify_type_expression_t classify_type; @@ -447,7 +457,7 @@ struct initializer_string_t { struct initializer_wide_string_t { initializer_base_t base; - wide_string_t string; + string_t string; }; struct initializer_designator_t { @@ -465,79 +475,6 @@ union initializer_t { initializer_designator_t designator; }; -/** - * GNU attributes. - */ -typedef enum gnu_attribute_kind_t { - GNU_AK_CONST, - GNU_AK_VOLATILE, - GNU_AK_CDECL, - GNU_AK_STDCALL, - GNU_AK_FASTCALL, - GNU_AK_DEPRECATED, - GNU_AK_NOINLINE, - GNU_AK_RETURNS_TWICE, - GNU_AK_NORETURN, - GNU_AK_NAKED, - GNU_AK_PURE, - GNU_AK_ALWAYS_INLINE, - GNU_AK_MALLOC, - GNU_AK_WEAK, - GNU_AK_CONSTRUCTOR, - GNU_AK_DESTRUCTOR, - GNU_AK_NOTHROW, - GNU_AK_TRANSPARENT_UNION, - GNU_AK_COMMON, - GNU_AK_NOCOMMON, - GNU_AK_PACKED, - GNU_AK_SHARED, - GNU_AK_NOTSHARED, - GNU_AK_USED, - GNU_AK_UNUSED, - GNU_AK_NO_INSTRUMENT_FUNCTION, - GNU_AK_WARN_UNUSED_RESULT, - GNU_AK_LONGCALL, - GNU_AK_SHORTCALL, - GNU_AK_LONG_CALL, - GNU_AK_SHORT_CALL, - GNU_AK_FUNCTION_VECTOR, - GNU_AK_INTERRUPT, - GNU_AK_INTERRUPT_HANDLER, - GNU_AK_NMI_HANDLER, - GNU_AK_NESTING, - GNU_AK_NEAR, - GNU_AK_FAR, - GNU_AK_SIGNAL, - GNU_AK_EIGTHBIT_DATA, - GNU_AK_TINY_DATA, - GNU_AK_SAVEALL, - GNU_AK_FLATTEN, - GNU_AK_SSEREGPARM, - GNU_AK_EXTERNALLY_VISIBLE, - GNU_AK_RETURN_TWICE, - GNU_AK_MAY_ALIAS, - GNU_AK_MS_STRUCT, - GNU_AK_GCC_STRUCT, - GNU_AK_DLLIMPORT, - GNU_AK_DLLEXPORT, - GNU_AK_ALIGNED, - GNU_AK_ALIAS, - GNU_AK_SECTION, - GNU_AK_FORMAT, - GNU_AK_FORMAT_ARG, - GNU_AK_WEAKREF, - GNU_AK_NONNULL, - GNU_AK_TLS_MODEL, - GNU_AK_VISIBILITY, - GNU_AK_REGPARM, - GNU_AK_MODEL, - GNU_AK_MODE, - GNU_AK_TRAP_EXIT, - GNU_AK_SP_SWITCH, - GNU_AK_SENTINEL, - GNU_AK_LAST -} gnu_attribute_kind_t; - /** * The statement kinds. */ @@ -568,10 +505,10 @@ typedef enum statement_kind_t { */ struct statement_base_t { statement_kind_t kind; - statement_t *next; + statement_t *next; /**< Point to the next statement in a compound statement. */ source_position_t source_position; - statement_t *parent; - bool reachable; + statement_t *parent; /**< The Parent statement that controls the execution. */ + bool reachable; /**< True, if this statement is reachable. */ #ifndef NDEBUG bool transformed; #endif @@ -587,14 +524,14 @@ struct empty_statement_t { struct return_statement_t { statement_base_t base; - expression_t *value; + expression_t *value; /**< The return value if any. */ }; struct compound_statement_t { statement_base_t base; statement_t *statements; scope_t scope; - bool stmt_expr; /* The compound statement is a statement expression */ + bool stmt_expr; /**< True if this compound statement is a statement expression. */ }; struct declaration_statement_t { @@ -730,25 +667,32 @@ struct translation_unit_t { statement_t *global_asm; }; -static inline -void *_allocate_ast(size_t size) +static inline void *_allocate_ast(size_t size) { return obstack_alloc(&ast_obstack, size); } -static inline -bool is_invalid_expression(expression_t *expression) +static inline bool is_invalid_expression(expression_t *expression) { return expression->base.kind == EXPR_INVALID; } -static inline -bool is_invalid_statement(statement_t *statement) +static inline bool is_invalid_statement(statement_t *statement) { return statement->base.kind == STATEMENT_INVALID; } - #define allocate_ast(size) _allocate_ast(size) +/** + * Allocate an AST node with given size and + * initialize all fields with zero. + */ +static inline void *allocate_ast_zero(size_t size) +{ + void *res = allocate_ast(size); + memset(res, 0, size); + return res; +} + #endif