/*
* Copyright 2013 Google Inc. All rights reserved.
*
* 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.google.errorprone.refaster;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableList;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.JCBlock;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.tree.JCTree.JCStatement;
import java.io.IOException;
/**
* A representation of a match against a {@code BlockTemplate}. The "location" is
* the first statement of the match.
*
* @author lowasser@google.com (Louis Wasserman)
*/
class BlockTemplateMatch extends TemplateMatch {
private final ImmutableList<JCStatement> statements;
public BlockTemplateMatch(JCBlock block, Unifier unifier, int start, int end) {
super(checkNotNull(block).getStatements().get(start), unifier);
this.statements = ImmutableList.copyOf(block.getStatements().subList(start, end));
}
public ImmutableList<JCStatement> getStatements() {
return statements;
}
@Override
public String getRange(JCCompilationUnit unit) {
try {
CharSequence sequence = unit.getSourceFile().getCharContent(true);
JCTree firstStatement = statements.get(0);
JCTree lastStatement = statements.get(statements.size() - 1);
return sequence.subSequence(firstStatement.getStartPosition(),
lastStatement.getEndPosition(unit.endPositions)).toString();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}