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/*
* Anarres C Preprocessor
* Copyright (c) 2007-2008, Shevek
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.jogamp.gluegen.jcpp;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
/* pp */ class FixedTokenSource extends Source {
private static final Token EOF
= new Token(Token.EOF, "<ts-eof>");
private final List<Token> tokens;
private int idx;
/* pp */ FixedTokenSource(Token... tokens) {
this.tokens = Arrays.asList(tokens);
this.idx = 0;
}
/* pp */ FixedTokenSource(List<Token> tokens) {
this.tokens = tokens;
this.idx = 0;
}
@Override
public Token token()
throws IOException,
LexerException {
if (idx >= tokens.size())
return EOF;
return tokens.get(idx++);
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("constant token stream ").append(tokens);
Source parent = getParent();
if (parent != null)
buf.append(" in ").append(String.valueOf(parent));
return buf.toString();
}
}
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