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+/*:*
+ *: File: ./src/core/symbol.h
+ *: A simple interpreter
+ *:
+ *: WWW : http://fype.buetow.org
+ *: AUTHOR : http://paul.buetow.org
+ *: E-Mail : fype at dev.buetow.org
+ *:
+ *: Copyright (c) 2005 - 2008, Paul Buetow
+ *: All rights reserved.
+ *:
+ *: Redistribution and use in source and binary forms, with or without modi-
+ *: fication, are permitted provided that the following conditions are met:
+ *: * Redistributions of source code must retain the above copyright
+ *: notice, this list of conditions and the following disclaimer.
+ *: * Redistributions in binary form must reproduce the above copyright
+ *: notice, this list of conditions and the following disclaimer in the
+ *: documentation and/or other materials provided with the distribution.
+ *: * Neither the name of P. B. Labs nor the names of its contributors may
+ *: be used to endorse or promote products derived from this software
+ *: without specific prior written permission.
+ *:
+ *: THIS SOFTWARE IS PROVIDED BY PAUL C. BUETOW AS IS'' AND ANY EXPRESS OR
+ *: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ *: WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *: DISCLAIMED. IN NO EVENT SHALL PAUL C. BUETOW BE LIABLE FOR ANY DIRECT,
+ *: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ *: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ *: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ *: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *: POSSIBILITY OF SUCH DAMAGE.
+ *:*/
+
+#ifndef SYMBOL_H
+#define SYMBOL_H
+
+#include "../defines.h"
+
+#define symbol_set_val(s,v) s->p_val = v
+#define symbol_set_sym(s,st) s->sym = st
+#define symbol_get_val(s) s->p_val
+#define symbol_get_sym(s) s->sym
+#define symbol_ref_up(s) ++s->i_refs
+#define IS_A_FUNCTION(s) (s == SYM_INLINEFUNCTION || s == SYM_FUNCTION)
+#define IS_NOT_A_FUNCTION(s) !IS_A_FUNCTION(s)
+
+typedef enum {
+ SYM_BUILDIN,
+ SYM_CONSTANT,
+ SYM_FUNCTION,
+ SYM_PROCEDURE,
+ SYM_ARRAY,
+ SYM_VARIABLE,
+} SymbolType;
+
+typedef struct {
+ SymbolType sym;
+ void *p_val;
+ unsigned i_refs;
+} Symbol;
+
+Symbol* symbol_new(SymbolType sym, void *p_val);
+void symbol_delete(Symbol *p_symbol);
+void symbol_cleanup_hash_syms_cb(void *p_void);
+void symbol_print(Symbol *p_symbol, char *c_key);
+void symbol_print_cb(void *p_void, char *c_key);
+char* sym_get_name(SymbolType sym);
+
+#endif