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/*
* MacRuby Symbols.
*
* This file is covered by the Ruby license. See COPYING for more details.
*
* Copyright (C) 2012, The MacRuby Team. All rights reserved.
* Copyright (C) 2010-2011, Apple Inc. All rights reserved.
*/

#ifndef __SYMBOL_H_
#define __SYMBOL_H_

#if defined(__cplusplus)
extern "C" {
#endif

// For the parser.
#define ID_SCOPE_SHIFT 3
#define ID_SCOPE_MASK 0x07
#define ID_LOCAL 0x00
#define ID_INSTANCE 0x01
#define ID_GLOBAL 0x03
#define ID_ATTRSET 0x04
#define ID_CONST 0x05
#define ID_CLASS 0x06
#define ID_JUNK 0x07
#define ID_INTERNAL ID_JUNK

#define is_notop_id(id) (true)
#define is_local_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_LOCAL)
#define is_global_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_GLOBAL)
#define is_instance_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_INSTANCE)
#define is_attrset_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_ATTRSET)
#define is_const_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_CONST)
#define is_class_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_CLASS)
#define is_junk_id(id) (is_notop_id(id)&&((id)&ID_SCOPE_MASK)==ID_JUNK)

#define is_asgn_or_id(id) ((is_notop_id(id)) && \
(((id)&ID_SCOPE_MASK) == ID_GLOBAL || \
((id)&ID_SCOPE_MASK) == ID_INSTANCE || \
((id)&ID_SCOPE_MASK) == ID_CLASS))

struct rb_op_tbl_entry {
    ID token;
    const char *name;
};

// Defined in parse.y.
extern struct rb_op_tbl_entry rb_op_tbl[];

VALUE rb_sym_str(VALUE sym);

#if defined(__cplusplus)
} // extern "C"
#endif

#endif // __SYMBOL_H_
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