X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=332cc85a619b20fc42d1feba47310fcaa626d620;hb=476ee2175bb415aa90f98a5c2f12390097dcdff2;hp=59ebc2a39038f86096df30647e94bd70853c650a;hpb=2c6cbbabbfa0f1005541880279cf506fd84ccbb9;p=cparser diff --git a/ast_t.h b/ast_t.h index 59ebc2a..332cc85 100644 --- a/ast_t.h +++ b/ast_t.h @@ -27,14 +27,45 @@ #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; -typedef enum { +/** + * 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. + */ +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, @@ -49,8 +80,7 @@ typedef enum { EXPR_CLASSIFY_TYPE, EXPR_ALIGNOF, - EXPR_FUNCTION, - EXPR_PRETTY_FUNCTION, + EXPR_FUNCNAME, EXPR_BUILTIN_SYMBOL, EXPR_BUILTIN_CONSTANT_P, EXPR_BUILTIN_PREFETCH, @@ -58,6 +88,7 @@ typedef enum { EXPR_VA_START, EXPR_VA_ARG, EXPR_STATEMENT, + EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */ EXPR_UNARY_FIRST, EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST, @@ -73,8 +104,10 @@ typedef enum { 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_UNARY_DELETE, + EXPR_UNARY_DELETE_ARRAY, + EXPR_UNARY_THROW, + EXPR_UNARY_LAST = EXPR_UNARY_THROW, EXPR_BINARY_FIRST, EXPR_BINARY_ADD = EXPR_BINARY_FIRST, @@ -118,6 +151,13 @@ typedef enum { EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED, } expression_kind_t; +typedef enum funcname_kind_t { + 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: \ @@ -158,7 +198,10 @@ typedef enum { 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: \ @@ -172,30 +215,38 @@ typedef enum { case EXPR_UNARY_CAST: \ case EXPR_UNARY_CAST_IMPLICIT: \ case EXPR_UNARY_ASSUME: \ - case EXPR_UNARY_BITFIELD_EXTRACT: + 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; +#ifndef NDEBUG + bool transformed; +#endif }; 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; + 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 { @@ -203,6 +254,12 @@ struct string_literal_expression_t { string_t value; }; +struct funcname_expression_t { + expression_base_t base; + funcname_kind_t kind; + string_t value; /**< the value once assigned. */ +}; + struct wide_string_literal_expression_t { expression_base_t base; wide_string_t value; @@ -233,8 +290,7 @@ struct builtin_prefetch_expression_t { struct reference_expression_t { expression_base_t base; - symbol_t *symbol; - declaration_t *declaration; + entity_t *entity; }; struct call_argument_t { @@ -262,16 +318,14 @@ 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 { @@ -296,7 +350,7 @@ 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 { @@ -321,10 +375,16 @@ 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; 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; @@ -344,30 +404,10 @@ 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_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_NORMAL, - NAMESPACE_STRUCT, - NAMESPACE_UNION, - NAMESPACE_ENUM, - NAMESPACE_LABEL, -} namespace_t; - -typedef enum { +typedef enum initializer_kind_t { INITIALIZER_VALUE, INITIALIZER_LIST, INITIALIZER_STRING, @@ -416,71 +456,84 @@ union initializer_t { }; /** - * Extended microsoft modifier. + * GNU attributes. */ -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_DEPRECATED = (1 << 11) -} decl_modifier_t; - -typedef unsigned short decl_modifiers_t; - -struct declaration_t { - unsigned char namespc; - unsigned char declared_storage_class; - unsigned char storage_class; - unsigned char alignment; /**< Alignmnet of the declaration, 0 for default. */ - decl_modifiers_t 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. */ - type_t *type; - symbol_t *symbol; - source_position_t source_position; - 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 parant 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 { +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_MODE, + GNU_AK_TRAP_EXIT, + GNU_AK_SP_SWITCH, + GNU_AK_SENTINEL, + GNU_AK_LAST +} gnu_attribute_kind_t; + +typedef enum statement_kind_t { STATEMENT_INVALID, + STATEMENT_EMPTY, STATEMENT_COMPOUND, STATEMENT_RETURN, STATEMENT_DECLARATION, + STATEMENT_LOCAL_LABEL, STATEMENT_IF, STATEMENT_SWITCH, STATEMENT_EXPRESSION, @@ -492,13 +545,28 @@ typedef enum { STATEMENT_WHILE, STATEMENT_DO_WHILE, STATEMENT_FOR, - STATEMENT_ASM + STATEMENT_ASM, + STATEMENT_MS_TRY, /**< MS __try/__finally or __try/__except */ + STATEMENT_LEAVE /**< MS __leave */ } statement_kind_t; struct statement_base_t { statement_kind_t kind; statement_t *next; source_position_t source_position; + statement_t *parent; + bool reachable; +#ifndef NDEBUG + bool transformed; +#endif +}; + +struct invalid_statement_t { + statement_base_t base; +}; + +struct empty_statement_t { + statement_base_t base; }; struct return_statement_t { @@ -514,8 +582,14 @@ 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 { @@ -526,29 +600,36 @@ 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 */ }; @@ -577,13 +658,15 @@ struct for_statement_t { expression_t *step; statement_t *body; scope_t scope; + bool condition_reachable:1; + bool step_reachable:1; }; -struct asm_constraint_t { - string_t constraints; - expression_t *expression; - symbol_t *symbol; - asm_constraint_t *next; +struct asm_argument_t { + string_t constraints; + expression_t *expression; + symbol_t *symbol; + asm_argument_t *next; }; struct asm_clobber_t { @@ -592,12 +675,23 @@ struct asm_clobber_t { }; struct asm_statement_t { + statement_base_t base; + string_t asm_text; + asm_argument_t *inputs; + asm_argument_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; - string_t asm_text; - asm_constraint_t *inputs; - asm_constraint_t *outputs; - asm_clobber_t *clobbers; - bool is_volatile; }; union statement_t { @@ -606,6 +700,7 @@ 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; @@ -616,10 +711,13 @@ union statement_t { 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 { - scope_t scope; + scope_t scope; + statement_t *global_asm; }; static inline @@ -628,6 +726,19 @@ 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