/*
* Copyright 2009 The Closure Compiler Authors.
*
* 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.javascript.jscomp;
import com.google.javascript.rhino.IR;
import com.google.javascript.rhino.InputId;
import com.google.javascript.rhino.Node;
/**
* An AST generated totally by the compiler.
*
* @author nicksantos@google.com (Nick Santos)
*/
public class SyntheticAst implements SourceAst {
private static final long serialVersionUID = 1L;
private final InputId inputId;
private final SourceFile sourceFile;
private Node root;
SyntheticAst(String sourceName) {
this.inputId = new InputId(sourceName);
this.sourceFile = new SourceFile(sourceName);
clearAst();
}
public SyntheticAst(Node root) {
this.inputId = new InputId(root.getSourceFileName());
this.sourceFile = new SourceFile(root.getSourceFileName());
this.root = root;
}
@Override
public Node getAstRoot(AbstractCompiler compiler) {
return root;
}
@Override
public void clearAst() {
root = IR.script();
root.setInputId(inputId);
root.setStaticSourceFile(sourceFile);
}
@Override
public InputId getInputId() {
return inputId;
}
@Override
public SourceFile getSourceFile() {
return sourceFile;
}
@Override
public void setSourceFile(SourceFile file) {
throw new IllegalStateException(
"Cannot set a source file for a synthetic AST");
}
}