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129 lines
4.4 KiB
129 lines
4.4 KiB
//
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// RewriteRuleTokenStream.m
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// ANTLR
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//
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// Created by Kay Röpke on 7/16/07.
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// [The "BSD licence"]
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// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// 3. The name of the author may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#import "RewriteRuleTokenStream.h"
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#import "RuntimeException.h"
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#import "HashMap.h"
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#import "MapElement.h"
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@implementation RewriteRuleTokenStream
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+ (id) newRewriteRuleTokenStream:(id<TreeAdaptor>)anAdaptor
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description:(NSString *)elementDescription
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{
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return [[RewriteRuleTokenStream alloc] initWithTreeAdaptor:anAdaptor
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description:elementDescription];
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}
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/** Create a stream with one element */
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+ (id) newRewriteRuleTokenStream:(id<TreeAdaptor>)adaptor
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description:(NSString *)elementDescription
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element:(id) oneElement
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{
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return [[RewriteRuleTokenStream alloc] initWithTreeAdaptor:adaptor
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description:elementDescription
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element:oneElement];
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}
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/** Create a stream, but feed off an existing list */
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+ (id) newRewriteRuleTokenStream:(id<TreeAdaptor>)adaptor
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description:(NSString *)elementDescription
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elements:(AMutableArray *)elements
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{
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return [[RewriteRuleTokenStream alloc] initWithTreeAdaptor:adaptor
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description:elementDescription
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elements:elements];
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}
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- (id) init
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{
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if ((self = [super init]) != nil ) {
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}
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return self;
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}
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- (id) initWithTreeAdaptor:(id<TreeAdaptor>)anAdaptor
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description:(NSString *)aDescription
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{
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if ((self = [super initWithTreeAdaptor:anAdaptor
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description:aDescription]) != nil ) {
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}
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return self;
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}
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- (id) initWithTreeAdaptor:(id<TreeAdaptor>)anAdaptor
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description:(NSString *)aDescription
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element:(id)anElement
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{
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if ((self = [super initWithTreeAdaptor:anAdaptor
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description:aDescription
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element:anElement]) != nil ) {
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}
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return self;
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}
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- (id) initWithTreeAdaptor:(id<TreeAdaptor>)anAdaptor
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description:(NSString *)aDescription
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elements:(AMutableArray *)elementList
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{
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if ((self = [super initWithTreeAdaptor:anAdaptor
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description:aDescription
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elements:elementList]) != nil ) {
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}
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return self;
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}
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- (id<BaseTree>) nextNode
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{
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id<Token> t = (id<Token>)[self _next];
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return [treeAdaptor create:t];
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}
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- (id) nextToken
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{
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return [self _next];
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}
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/** Don't convert to a tree unless they explicitly call nextTree.
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* This way we can do hetero tree nodes in rewrite.
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*/
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- (id<BaseTree>) toTree:(id<Token>)element
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{
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return (id<BaseTree>)element;
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}
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- (id) copyElement:(id)element
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{
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@throw [RuntimeException newException:@"copy can't be called for a token stream."];
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}
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@end
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