X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=cbb1c2ea9bf93982945b6fca9b20aeb93fd484ad;hb=dc80433e9208fb190af9b5a466b484036cfb8335;hp=d80860c293a4f29516db2a1b5a0b2da84131a337;hpb=dad2cfa20847b2ec1de207f807c41c4ed3471b81;p=cparser diff --git a/ast_t.h b/ast_t.h index d80860c..cbb1c2e 100644 --- a/ast_t.h +++ b/ast_t.h @@ -1,65 +1,257 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2008 Matthias Braun + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ #ifndef AST_T_H #define AST_T_H +#include +#include + #include "ast.h" #include "symbol.h" #include "token_t.h" #include "type.h" #include "adt/obst.h" +/** The AST obstack contains all data that must stay in the AST. */ extern struct obstack ast_obstack; +/** + * Expression kinds. + */ typedef enum { - EXPR_INVALID = 0, + EXPR_UNKNOWN = 0, + EXPR_INVALID, EXPR_REFERENCE, EXPR_CONST, + EXPR_CHARACTER_CONSTANT, + EXPR_WIDE_CHARACTER_CONSTANT, EXPR_STRING_LITERAL, + EXPR_WIDE_STRING_LITERAL, + EXPR_COMPOUND_LITERAL, EXPR_CALL, - EXPR_UNARY, - EXPR_BINARY, + EXPR_CONDITIONAL, EXPR_SELECT, EXPR_ARRAY_ACCESS, EXPR_SIZEOF, + EXPR_CLASSIFY_TYPE, + EXPR_ALIGNOF, - EXPR_FUNCTION, - EXPR_PRETTY_FUNCTION, + EXPR_FUNCNAME, EXPR_BUILTIN_SYMBOL, + EXPR_BUILTIN_CONSTANT_P, + EXPR_BUILTIN_PREFETCH, EXPR_OFFSETOF, - EXPR_STATEMENT -} expresion_type_t; + EXPR_VA_START, + EXPR_VA_ARG, + EXPR_STATEMENT, + + EXPR_UNARY_FIRST, + EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST, + EXPR_UNARY_PLUS, + EXPR_UNARY_BITWISE_NEGATE, + EXPR_UNARY_NOT, + EXPR_UNARY_DEREFERENCE, + EXPR_UNARY_TAKE_ADDRESS, + EXPR_UNARY_POSTFIX_INCREMENT, + EXPR_UNARY_POSTFIX_DECREMENT, + EXPR_UNARY_PREFIX_INCREMENT, + EXPR_UNARY_PREFIX_DECREMENT, + EXPR_UNARY_CAST, + EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */ + EXPR_UNARY_ASSUME, /**< MS __assume() */ + EXPR_UNARY_BITFIELD_EXTRACT, + EXPR_UNARY_LAST = EXPR_UNARY_BITFIELD_EXTRACT, + + EXPR_BINARY_FIRST, + EXPR_BINARY_ADD = EXPR_BINARY_FIRST, + EXPR_BINARY_SUB, + EXPR_BINARY_MUL, + EXPR_BINARY_DIV, + EXPR_BINARY_MOD, + EXPR_BINARY_EQUAL, + EXPR_BINARY_NOTEQUAL, + EXPR_BINARY_LESS, + EXPR_BINARY_LESSEQUAL, + EXPR_BINARY_GREATER, + EXPR_BINARY_GREATEREQUAL, + EXPR_BINARY_BITWISE_AND, + EXPR_BINARY_BITWISE_OR, + EXPR_BINARY_BITWISE_XOR, + EXPR_BINARY_LOGICAL_AND, + EXPR_BINARY_LOGICAL_OR, + EXPR_BINARY_SHIFTLEFT, + EXPR_BINARY_SHIFTRIGHT, + EXPR_BINARY_ASSIGN, + EXPR_BINARY_MUL_ASSIGN, + EXPR_BINARY_DIV_ASSIGN, + EXPR_BINARY_MOD_ASSIGN, + EXPR_BINARY_ADD_ASSIGN, + EXPR_BINARY_SUB_ASSIGN, + EXPR_BINARY_SHIFTLEFT_ASSIGN, + EXPR_BINARY_SHIFTRIGHT_ASSIGN, + EXPR_BINARY_BITWISE_AND_ASSIGN, + EXPR_BINARY_BITWISE_XOR_ASSIGN, + EXPR_BINARY_BITWISE_OR_ASSIGN, + EXPR_BINARY_COMMA, + + EXPR_BINARY_BUILTIN_EXPECT, + EXPR_BINARY_ISGREATER, + EXPR_BINARY_ISGREATEREQUAL, + EXPR_BINARY_ISLESS, + EXPR_BINARY_ISLESSEQUAL, + EXPR_BINARY_ISLESSGREATER, + EXPR_BINARY_ISUNORDERED, + EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED, +} expression_kind_t; -struct context_t { - declaration_t *declarations; - compound_type_t *structs; - compound_type_t *unions; - enum_type_t *enums; +typedef enum { + FUNCNAME_FUNCTION, /**< C99 __func__, older __FUNCTION__ */ + FUNCNAME_PRETTY_FUNCTION, /**< GNUC __PRETTY_FUNCTION__ */ + FUNCNAME_FUNCSIG, /**< MS __FUNCSIG__ */ + FUNCNAME_FUNCDNAME /**< MS __FUNCDNAME__ */ +} funcname_kind_t; + +/* convenience macros */ +#define EXPR_BINARY_CASES \ + case EXPR_BINARY_ADD: \ + case EXPR_BINARY_SUB: \ + case EXPR_BINARY_MUL: \ + case EXPR_BINARY_DIV: \ + case EXPR_BINARY_MOD: \ + case EXPR_BINARY_EQUAL: \ + case EXPR_BINARY_NOTEQUAL: \ + case EXPR_BINARY_LESS: \ + case EXPR_BINARY_LESSEQUAL: \ + case EXPR_BINARY_GREATER: \ + case EXPR_BINARY_GREATEREQUAL: \ + case EXPR_BINARY_BITWISE_AND: \ + case EXPR_BINARY_BITWISE_OR: \ + case EXPR_BINARY_BITWISE_XOR: \ + case EXPR_BINARY_LOGICAL_AND: \ + case EXPR_BINARY_LOGICAL_OR: \ + case EXPR_BINARY_SHIFTLEFT: \ + case EXPR_BINARY_SHIFTRIGHT: \ + case EXPR_BINARY_ASSIGN: \ + case EXPR_BINARY_MUL_ASSIGN: \ + case EXPR_BINARY_DIV_ASSIGN: \ + case EXPR_BINARY_MOD_ASSIGN: \ + case EXPR_BINARY_ADD_ASSIGN: \ + case EXPR_BINARY_SUB_ASSIGN: \ + case EXPR_BINARY_SHIFTLEFT_ASSIGN: \ + case EXPR_BINARY_SHIFTRIGHT_ASSIGN: \ + case EXPR_BINARY_BITWISE_AND_ASSIGN: \ + 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: \ + case EXPR_BINARY_ISLESSEQUAL: \ + case EXPR_BINARY_ISLESSGREATER: \ + case EXPR_BINARY_ISUNORDERED: + +#define EXPR_UNARY_CASES \ + case EXPR_UNARY_NEGATE: \ + case EXPR_UNARY_PLUS: \ + case EXPR_UNARY_BITWISE_NEGATE: \ + case EXPR_UNARY_NOT: \ + case EXPR_UNARY_DEREFERENCE: \ + case EXPR_UNARY_TAKE_ADDRESS: \ + case EXPR_UNARY_POSTFIX_INCREMENT: \ + case EXPR_UNARY_POSTFIX_DECREMENT: \ + case EXPR_UNARY_PREFIX_INCREMENT: \ + case EXPR_UNARY_PREFIX_DECREMENT: \ + case EXPR_UNARY_CAST: \ + case EXPR_UNARY_CAST_IMPLICIT: \ + case EXPR_UNARY_ASSUME: \ + case EXPR_UNARY_BITFIELD_EXTRACT: + +/** + * A scope containing declarations. + */ +struct scope_t { + declaration_t *declarations; /**< List of declarations in this scope. */ + declaration_t *last_declaration; /**< last declaration in this scope. */ +}; + +struct expression_base_t { + expression_kind_t kind; + type_t *type; + source_position_t source_position; }; -struct expression_t { - expresion_type_t type; - type_t *datatype; - source_position_t source_position; +struct const_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 */ +}; + +struct string_literal_expression_t { + expression_base_t base; + string_t value; }; -struct const_t { - expression_t expression; - int value; +struct funcname_expression_t { + expression_base_t base; + funcname_kind_t kind; + string_t value; /**< the value once assigned. */ }; -struct string_literal_t { - expression_t expression; - const char *value; +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 { - symbol_t *symbol; - expression_t expression; + expression_base_t base; + symbol_t *symbol; +}; + +struct builtin_constant_expression_t { + expression_base_t base; + expression_t *value; +}; + +struct builtin_prefetch_expression_t { + expression_base_t base; + expression_t *adr; + expression_t *rw; + expression_t *locality; }; struct reference_expression_t { - expression_t expression; - symbol_t *symbol; - declaration_t *declaration; + expression_base_t base; + declaration_t *declaration; }; struct call_argument_t { @@ -68,141 +260,316 @@ struct call_argument_t { }; struct call_expression_t { - expression_t expression; - expression_t *method; - call_argument_t *arguments; + expression_base_t base; + expression_t *function; + call_argument_t *arguments; }; -typedef enum { - UNEXPR_INVALID = 0, - UNEXPR_NEGATE, - UNEXPR_PLUS, - UNEXPR_BITWISE_NEGATE, - UNEXPR_NOT, - UNEXPR_DEREFERENCE, - UNEXPR_TAKE_ADDRESS, - UNEXPR_POSTFIX_INCREMENT, - UNEXPR_POSTFIX_DECREMENT, - UNEXPR_PREFIX_INCREMENT, - UNEXPR_PREFIX_DECREMENT, - UNEXPR_CAST -} unary_expression_type_t; - struct unary_expression_t { - expression_t expression; - unary_expression_type_t type; - expression_t *value; + expression_base_t base; + expression_t *value; }; -typedef enum { - BINEXPR_INVALID = 0, - BINEXPR_ADD, - BINEXPR_SUB, - BINEXPR_MUL, - BINEXPR_DIV, - BINEXPR_MOD, - BINEXPR_EQUAL, - BINEXPR_NOTEQUAL, - BINEXPR_LESS, - BINEXPR_LESSEQUAL, - BINEXPR_GREATER, - BINEXPR_GREATEREQUAL, - BINEXPR_BITWISE_AND, - BINEXPR_BITWISE_OR, - BINEXPR_BITWISE_XOR, - BINEXPR_LOGICAL_AND, - BINEXPR_LOGICAL_OR, - BINEXPR_SHIFTLEFT, - BINEXPR_SHIFTRIGHT, - BINEXPR_ASSIGN, - BINEXPR_MUL_ASSIGN, - BINEXPR_DIV_ASSIGN, - BINEXPR_MOD_ASSIGN, - BINEXPR_ADD_ASSIGN, - BINEXPR_SUB_ASSIGN, - BINEXPR_SHIFTLEFT_ASSIGN, - BINEXPR_SHIFTRIGHT_ASSIGN, - BINEXPR_BITWISE_AND_ASSIGN, - BINEXPR_BITWISE_XOR_ASSIGN, - BINEXPR_BITWISE_OR_ASSIGN, - BINEXPR_COMMA -} binary_expression_type_t; - struct binary_expression_t { - expression_t expression; - binary_expression_type_t type; - expression_t *left; - expression_t *right; + expression_base_t base; + expression_t *left; + expression_t *right; }; struct select_expression_t { - expression_t expression; - expression_t *compound; - symbol_t *symbol; + expression_base_t base; + expression_t *compound; + symbol_t *symbol; - declaration_t *compound_entry; + declaration_t *compound_entry; }; struct array_access_expression_t { - expression_t expression; - expression_t *array_ref; - expression_t *index; + expression_base_t base; + expression_t *array_ref; + expression_t *index; + bool flipped; /* index/ref was written in a 5[a] way */ }; -struct sizeof_expression_t { - expression_t expression; - type_t *type; - expression_t *size_expression; +struct typeprop_expression_t { + expression_base_t base; + type_t *type; + expression_t *tp_expression; }; -struct member_designator_t { - symbol_t *symbol; - expression_t *array_access; - member_designator_t *next; +struct designator_t { + source_position_t source_position; + symbol_t *symbol; + expression_t *array_index; + designator_t *next; }; struct offsetof_expression_t { - expression_t expression; - type_t *type; - member_designator_t *member_designators; + expression_base_t base; + type_t *type; + designator_t *designator; +}; + +struct va_start_expression_t { + expression_base_t base; + expression_t *ap; + declaration_t *parameter; +}; + +struct va_arg_expression_t { + expression_base_t base; + expression_t *ap; }; struct conditional_expression_t { - expression_t expression; - expression_t *condition; - expression_t *true_expression; - expression_t *false_expression; + expression_base_t base; + expression_t *condition; + expression_t *true_expression; + expression_t *false_expression; }; struct statement_expression_t { - expression_t expression; - statement_t *statement; + expression_base_t base; + statement_t *statement; +}; + +struct classify_type_expression_t { + expression_base_t base; + expression_t *type_expression; +}; + +union expression_t { + expression_kind_t kind; + expression_base_t base; + const_expression_t conste; + 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_prefetch_expression_t builtin_prefetch; + reference_expression_t reference; + call_expression_t call; + unary_expression_t unary; + binary_expression_t binary; + select_expression_t select; + array_access_expression_t array_access; + typeprop_expression_t typeprop; + offsetof_expression_t offsetofe; + va_start_expression_t va_starte; + va_arg_expression_t va_arge; + conditional_expression_t conditional; + statement_expression_t statement; + classify_type_expression_t classify_type; }; typedef enum { STORAGE_CLASS_NONE, - STORAGE_CLASS_TYPEDEF, STORAGE_CLASS_EXTERN, STORAGE_CLASS_STATIC, + STORAGE_CLASS_TYPEDEF, STORAGE_CLASS_AUTO, STORAGE_CLASS_REGISTER, - STORAGE_CLASS_ENUM_ENTRY -} storage_class_t; + STORAGE_CLASS_ENUM_ENTRY, + STORAGE_CLASS_THREAD, + STORAGE_CLASS_THREAD_EXTERN, + STORAGE_CLASS_THREAD_STATIC, +} storage_class_tag_t; + +typedef enum { + NAMESPACE_NORMAL, + NAMESPACE_STRUCT, + NAMESPACE_UNION, + NAMESPACE_ENUM, + NAMESPACE_LABEL, +} namespace_t; + +typedef enum { + INITIALIZER_VALUE, + INITIALIZER_LIST, + INITIALIZER_STRING, + INITIALIZER_WIDE_STRING, + INITIALIZER_DESIGNATOR +} initializer_kind_t; + +struct initializer_base_t { + initializer_kind_t kind; +}; + +struct initializer_value_t { + initializer_base_t base; + expression_t *value; +}; + +struct initializer_list_t { + initializer_base_t base; + size_t len; + initializer_t *initializers[]; +}; + +struct initializer_string_t { + initializer_base_t base; + string_t string; +}; + +struct initializer_wide_string_t { + initializer_base_t base; + wide_string_t string; +}; + +struct initializer_designator_t { + initializer_base_t base; + designator_t *designator; +}; + +union initializer_t { + initializer_kind_t kind; + initializer_base_t base; + initializer_value_t value; + initializer_list_t list; + initializer_string_t string; + initializer_wide_string_t wide_string; + 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_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_TRAP_EXIT, + GNU_AK_SP_SWITCH, + GNU_AK_SENTINEL, + GNU_AK_LAST +} gnu_attribute_kind_t; + +/** + * Extended microsoft modifier. + */ +typedef enum { + 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) +} decl_modifier_t; + +typedef unsigned short decl_modifiers_t; struct declaration_t { - storage_class_t storage_class; + 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 decl_modifiers; /**< MS __declspec 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. */ + unsigned int deprecated : 1; /**< Microsoft or GNU deprecated attribute. */ type_t *type; symbol_t *symbol; - statement_t *statement; - expression_t *initializer; source_position_t source_position; - context_t context; - + union { + bool is_defined; + 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_INVALID, + STATEMENT_EMPTY, STATEMENT_COMPOUND, STATEMENT_RETURN, STATEMENT_DECLARATION, @@ -216,92 +583,158 @@ typedef enum { STATEMENT_CASE_LABEL, STATEMENT_WHILE, STATEMENT_DO_WHILE, - STATEMENT_FOR -} statement_type_t; - -struct statement_t { - statement_type_t type; + STATEMENT_FOR, + STATEMENT_ASM, + STATEMENT_MS_TRY, + STATEMENT_LEAVE +} statement_kind_t; + +struct statement_base_t { + statement_kind_t kind; statement_t *next; source_position_t source_position; }; +struct invalid_statement_t { + statement_base_t base; +}; + +struct empty_statement_t { + statement_base_t base; +}; + struct return_statement_t { - statement_t statement; - expression_t *return_value; + statement_base_t base; + expression_t *value; }; struct compound_statement_t { - statement_t statement; - statement_t *statements; - context_t context; + statement_base_t base; + statement_t *statements; + scope_t scope; }; struct declaration_statement_t { - statement_t statement; - declaration_t *declarations_begin; - declaration_t *declarations_end; - - int value_number; /**< filled in by semantic phase */ - int refs; + statement_base_t base; + declaration_t *declarations_begin; + declaration_t *declarations_end; }; struct if_statement_t { - statement_t statement; - expression_t *condition; - statement_t *true_statement; - statement_t *false_statement; + statement_base_t base; + expression_t *condition; + statement_t *true_statement; + statement_t *false_statement; }; struct switch_statement_t { - statement_t statement; - expression_t *expression; - statement_t *body; + statement_base_t base; + expression_t *expression; + statement_t *body; + case_label_statement_t *first_case, *last_case; }; struct goto_statement_t { - statement_t statement; - symbol_t *label_symbol; - label_statement_t *label; + statement_base_t base; + declaration_t *label; /**< The destination label. */ + goto_statement_t *next; /**< links all goto statements of a function */ }; struct case_label_statement_t { - statement_t statement; - expression_t *expression; + 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. */ + statement_t *statement; + case_label_statement_t *next; /**< link to the next case label in switch */ }; struct label_statement_t { - statement_t statement; - symbol_t *symbol; + statement_base_t base; + declaration_t *label; + statement_t *statement; + label_statement_t *next; /**< links all label statements of a function */ }; struct expression_statement_t { - statement_t statement; - expression_t *expression; + statement_base_t base; + expression_t *expression; }; struct while_statement_t { - statement_t statement; - expression_t *condition; - statement_t *body; + statement_base_t base; + expression_t *condition; + statement_t *body; }; struct do_while_statement_t { - statement_t statement; - expression_t *condition; - statement_t *body; + statement_base_t base; + expression_t *condition; + statement_t *body; }; struct for_statement_t { - statement_t statement; - expression_t *initialisation; - expression_t *condition; - expression_t *step; - statement_t *body; - context_t context; + statement_base_t base; + expression_t *initialisation; + expression_t *condition; + expression_t *step; + statement_t *body; + scope_t scope; +}; + +struct asm_constraint_t { + string_t constraints; + expression_t *expression; + symbol_t *symbol; + asm_constraint_t *next; +}; + +struct asm_clobber_t { + string_t clobber; + asm_clobber_t *next; +}; + +struct asm_statement_t { + statement_base_t base; + string_t asm_text; + asm_constraint_t *inputs; + asm_constraint_t *outputs; + asm_clobber_t *clobbers; + bool is_volatile; +}; + +struct ms_try_statement_t { + statement_base_t base; + statement_t *try_statement; + expression_t *except_expression; /**< non-null for except, NULL for finally */ + statement_t *final_statement; +}; + +struct leave_statement_t { + statement_base_t base; +}; + +union statement_t { + statement_kind_t kind; + statement_base_t base; + return_statement_t returns; + compound_statement_t compound; + declaration_statement_t declaration; + if_statement_t ifs; + switch_statement_t switchs; + goto_statement_t gotos; + case_label_statement_t case_label; + label_statement_t label; + expression_statement_t expression; + while_statement_t whiles; + do_while_statement_t do_while; + for_statement_t fors; + asm_statement_t asms; + ms_try_statement_t ms_try; + leave_statement_t leave; }; struct translation_unit_t { - context_t context; + scope_t scope; }; static inline @@ -310,6 +743,19 @@ void *_allocate_ast(size_t size) return obstack_alloc(&ast_obstack, size); } +static inline +bool is_invalid_expression(expression_t *expression) +{ + return expression->base.kind == EXPR_INVALID; +} + +static inline +bool is_invalid_statement(statement_t *statement) +{ + return statement->base.kind == STATEMENT_INVALID; +} + + #define allocate_ast(size) _allocate_ast(size) #endif