/********************************************************************** symbol.h - $Author$ created at: Tue Jul 8 15:49:54 JST 2014 Copyright (C) 2014 Yukihiro Matsumoto **********************************************************************/ #ifndef RUBY_SYMBOL_H #define RUBY_SYMBOL_H 1 #include "id.h" #include "ruby/encoding.h" #define DYNAMIC_ID_P(id) (!(id&ID_STATIC_SYM)&&id>tLAST_OP_ID) #define STATIC_ID2SYM(id) (((VALUE)(id)<<RUBY_SPECIAL_SHIFT)|SYMBOL_FLAG) #ifdef HAVE_BUILTIN___BUILTIN_CONSTANT_P #define rb_id2sym(id) \ RB_GNUC_EXTENSION_BLOCK(__builtin_constant_p(id) && !DYNAMIC_ID_P(id) ? \ STATIC_ID2SYM(id) : rb_id2sym(id)) #endif struct RSymbol { struct RBasic basic; st_index_t hashval; VALUE fstr; ID id; }; #define RSYMBOL(obj) (R_CAST(RSymbol)(obj)) #define is_notop_id(id) ((id)>tLAST_OP_ID) #define is_local_id(id) (id_type(id)==ID_LOCAL) #define is_global_id(id) (id_type(id)==ID_GLOBAL) #define is_instance_id(id) (id_type(id)==ID_INSTANCE) #define is_attrset_id(id) ((id)==idASET||id_type(id)==ID_ATTRSET) #define is_const_id(id) (id_type(id)==ID_CONST) #define is_class_id(id) (id_type(id)==ID_CLASS) #define is_junk_id(id) (id_type(id)==ID_JUNK) static inline int id_type(ID id) { if (is_notop_id(id)) { return (int)(id&ID_SCOPE_MASK); } else { return -1; } } typedef uint32_t rb_id_serial_t; static const uint32_t RB_ID_SERIAL_MAX = /* 256M on LP32 */ UINT32_MAX >> ((sizeof(ID)-sizeof(rb_id_serial_t))*CHAR_BIT < RUBY_ID_SCOPE_SHIFT ? RUBY_ID_SCOPE_SHIFT : 0); typedef struct { rb_id_serial_t last_id; st_table *str_sym; VALUE ids; VALUE dsymbol_fstr_hash; } rb_symbols_t; static inline rb_id_serial_t rb_id_to_serial(ID id) { if (is_notop_id(id)) { return (rb_id_serial_t)(id >> ID_SCOPE_SHIFT); } else { return (rb_id_serial_t)id; } } static inline int sym_type(VALUE sym) { ID id; if (STATIC_SYM_P(sym)) { id = RSHIFT(sym, RUBY_SPECIAL_SHIFT); if (id<=tLAST_OP_ID) { return -1; } } else { id = RSYMBOL(sym)->id; } return (int)(id&ID_SCOPE_MASK); } #define is_local_sym(sym) (sym_type(sym)==ID_LOCAL) #define is_global_sym(sym) (sym_type(sym)==ID_GLOBAL) #define is_instance_sym(sym) (sym_type(sym)==ID_INSTANCE) #define is_attrset_sym(sym) (sym_type(sym)==ID_ATTRSET) #define is_const_sym(sym) (sym_type(sym)==ID_CONST) #define is_class_sym(sym) (sym_type(sym)==ID_CLASS) #define is_junk_sym(sym) (sym_type(sym)==ID_JUNK) RUBY_FUNC_EXPORTED const unsigned int ruby_global_name_punct_bits[(0x7e - 0x20 + 31) / 32]; static inline int is_global_name_punct(const int c) { if (c <= 0x20 || 0x7e < c) return 0; return (ruby_global_name_punct_bits[(c - 0x20) / 32] >> (c % 32)) & 1; } int rb_enc_symname_type(const char *name, long len, rb_encoding *enc, unsigned int allowed_attrset); RUBY_SYMBOL_EXPORT_BEGIN size_t rb_sym_immortal_count(void); RUBY_SYMBOL_EXPORT_END #endif