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/*:*
*: File: ./src/core/scope.h
*: A simple interpreter
*:
*: WWW : http://fype.buetow.org
*: E-Mail : fype@dev.buetow.org
*:
*: Copyright (c) 2005 2006 2007 2008, Dipl.-Inf. (FH) Paul C. 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 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 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 SCOPE_H
#define SCOPE_H
#include "../data/hash.h"
#include "../data/stack.h"
#include "../defines.h"
#include "symbol.h"
typedef struct {
Hash *p_hash_global;
Stack *p_stack_scopes;
} Scope;
Scope* scope_new(Hash *p_hash_syms);
void scope_delete(Scope *p_scope);
Symbol *scope_get(Scope *p_scope, char *c_key);
Symbol *scope_remove(Scope *p_scope, char *c_key);
_Bool scope_exists(Scope *p_scope, char *c_key);
_Bool scope_newset(Scope *p_scope, char *c_key, Symbol *p_symbol);
_Bool scope_reset(Scope *p_scope, char *c_key, Symbol *p_symbol);
void scope_down(Scope *p_scope);
void scope_up(Scope *p_scope);
#endif /* SCOPE_H */
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