X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=7a08c2a1dfc8c0e5cd60d5ee1506bb58bfcbb205;hb=27040b8042ae6b0ac7974f52abd95d7562da6d9a;hp=0b7f9f6f602fbbb9feba2b040c1c6011961b8caa;hpb=e3aa358852a45d943e0f7d0c6b20ccfe74ac52ae;p=cparser diff --git a/ast_t.h b/ast_t.h index 0b7f9f6..7a08c2a 100644 --- a/ast_t.h +++ b/ast_t.h @@ -27,11 +27,37 @@ #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, @@ -54,12 +81,12 @@ typedef enum expression_kind_t { EXPR_ALIGNOF, EXPR_FUNCNAME, - EXPR_BUILTIN_SYMBOL, EXPR_BUILTIN_CONSTANT_P, - EXPR_BUILTIN_PREFETCH, + EXPR_BUILTIN_TYPES_COMPATIBLE_P, EXPR_OFFSETOF, EXPR_VA_START, EXPR_VA_ARG, + EXPR_VA_COPY, EXPR_STATEMENT, EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */ @@ -77,7 +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, @@ -111,7 +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, @@ -160,7 +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: \ @@ -168,7 +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: \ @@ -181,28 +212,36 @@ 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 optional operand */ -struct scope_t { - declaration_t *declarations; /**< List of declarations in this scope. */ - declaration_t *last_declaration; /**< last declaration in this scope. */ - scope_t *parent; /**< points to the parent scope. */ - unsigned depth; /**< while parsing, the depth of this scope in the scope stack. */ - bool is_parameter; /**< Set if this scope is a parameter scope. */ -}; +#define EXPR_UNARY_CASES_OPTIONAL \ + case EXPR_UNARY_THROW: \ + +#define EXPR_UNARY_CASES \ + EXPR_UNARY_CASES_MANDATORY \ + EXPR_UNARY_CASES_OPTIONAL +/** + * The base class of every expression. + */ struct expression_base_t { - expression_kind_t kind; - type_t *type; - source_position_t source_position; + 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; #ifndef NDEBUG - bool transformed; + bool transformed; /**< Set if this expression was transformed. */ #endif }; +/** + * A constant. + */ struct const_expression_t { expression_base_t base; union { @@ -237,44 +276,41 @@ struct compound_literal_expression_t { 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; }; -struct builtin_prefetch_expression_t { +struct builtin_types_compatible_expression_t { expression_base_t base; - expression_t *adr; - expression_t *rw; - expression_t *locality; + type_t *left; + type_t *right; }; struct reference_expression_t { expression_base_t base; - declaration_t *declaration; - bool is_outer_ref; /**< Set, if this referenced a variable - outside of an inner function */ + 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 { @@ -286,14 +322,14 @@ struct binary_expression_t { struct select_expression_t { expression_base_t base; expression_t *compound; - 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 */ + 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 { @@ -304,8 +340,8 @@ 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; }; @@ -318,7 +354,7 @@ 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 { @@ -326,6 +362,12 @@ 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; @@ -345,57 +387,35 @@ struct classify_type_expression_t { struct label_address_expression_t { expression_base_t base; - declaration_t *declaration; + 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; - 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; - 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_LOCAL_LABEL -} namespace_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_constant_expression_t builtin_constant; + builtin_types_compatible_expression_t builtin_types_compatible; + 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; + va_copy_expression_t va_copye; + conditional_expression_t conditional; + statement_expression_t statement; + classify_type_expression_t classify_type; + label_address_expression_t label_address; +}; typedef enum initializer_kind_t { INITIALIZER_VALUE, @@ -446,157 +466,8 @@ union initializer_t { }; /** - * 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_MODE, - GNU_AK_TRAP_EXIT, - GNU_AK_SP_SWITCH, - GNU_AK_SENTINEL, - GNU_AK_LAST -} gnu_attribute_kind_t; - -/** - * Extended microsoft modifier. + * The statement kinds. */ -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_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 -} 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; /**< Set if the address of this declaration was taken. */ - unsigned int is_inline : 1; - unsigned int used : 1; /**< Set if the declaration is used. */ - unsigned int implicit : 1; /**< Set for implicit (not found in source code) declarations. */ - unsigned int need_closure : 1; /**< Inner function needs closure. */ - unsigned int goto_to_outer : 1; /**< Inner function has goto to outer function. */ - type_t *type; - il_size_t offset; /**< The offset of this member inside a compound. */ - symbol_t *symbol; - string_t *asm_name; /**< GCC extension: ASM label. */ - source_position_t source_position; - union { - bool complete; /**< used to indicate whether 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, @@ -619,12 +490,15 @@ typedef enum statement_kind_t { STATEMENT_LEAVE /**< MS __leave */ } statement_kind_t; +/** + * The base class of every statement. + */ 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 @@ -640,19 +514,20 @@ 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; /**< True if this compound statement is a statement expression. */ }; 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 if_statement_t { @@ -673,10 +548,9 @@ struct switch_statement_t { struct goto_statement_t { statement_base_t base; - declaration_t *label; /**< The destination label. */ + 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 */ - bool outer_fkt_jmp; /**< Set if this goto jump to an outer function. */ }; struct case_label_statement_t { @@ -693,7 +567,7 @@ struct case_label_statement_t { 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 */ }; @@ -801,7 +675,6 @@ bool is_invalid_statement(statement_t *statement) return statement->base.kind == STATEMENT_INVALID; } - #define allocate_ast(size) _allocate_ast(size) #endif