/*
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.flex.compiler.internal.js.driver;
import java.io.FilterWriter;
import java.io.StringWriter;
import java.util.List;
import org.apache.flex.compiler.as.codegen.IASEmitter;
import org.apache.flex.compiler.as.codegen.IDocEmitter;
import org.apache.flex.compiler.clients.IBackend;
import org.apache.flex.compiler.clients.JSConfiguration;
import org.apache.flex.compiler.config.Configurator;
import org.apache.flex.compiler.internal.as.codegen.ASBlockWalker;
import org.apache.flex.compiler.internal.as.codegen.ASFilterWriter;
import org.apache.flex.compiler.internal.as.codegen.ASAfterNodeStrategy;
import org.apache.flex.compiler.internal.as.codegen.ASBeforeNodeStrategy;
import org.apache.flex.compiler.internal.as.visitor.ASNodeSwitch;
import org.apache.flex.compiler.internal.as.visitor.BeforeAfterStrategy;
import org.apache.flex.compiler.internal.js.codegen.JSDocEmitter;
import org.apache.flex.compiler.internal.js.codegen.JSEmitter;
import org.apache.flex.compiler.internal.js.codegen.JSFilterWriter;
import org.apache.flex.compiler.internal.js.codegen.JSWriter;
import org.apache.flex.compiler.internal.projects.ISourceFileHandler;
import org.apache.flex.compiler.internal.targets.JSTarget;
import org.apache.flex.compiler.js.codegen.IJSEmitter;
import org.apache.flex.compiler.js.codegen.IJSWriter;
import org.apache.flex.compiler.problems.ICompilerProblem;
import org.apache.flex.compiler.projects.IASProject;
import org.apache.flex.compiler.targets.ITargetProgressMonitor;
import org.apache.flex.compiler.targets.ITargetSettings;
import org.apache.flex.compiler.tree.as.IFileNode;
import org.apache.flex.compiler.units.ICompilationUnit;
import org.apache.flex.compiler.visitor.IASBlockWalker;
/**
* A concrete implementation of the {@link IBackend} API where the
* {@link ASBlockWalker} is used to traverse the {@link IFileNode} AST.
*
* @author Michael Schmalle
*/
public class JSBackend implements IBackend
{
@Override
public String getOutputExtension()
{
return "js";
}
@Override
public ISourceFileHandler getSourceFileHandlerInstance()
{
return JSSourceFileHandler.INSTANCE;
}
@Override
public Configurator createConfigurator()
{
return new Configurator(JSConfiguration.class);
}
@Override
public JSTarget createTarget(IASProject project, ITargetSettings settings,
ITargetProgressMonitor monitor)
{
return new JSTarget(project, settings, monitor);
}
@Override
public IASBlockWalker createWalker(IASProject project,
List<ICompilerProblem> errors, ASFilterWriter out)
{
IJSEmitter emitter = createEmitter(out);
ASBlockWalker walker = new ASBlockWalker(errors, project, emitter);
BeforeAfterStrategy strategy = new BeforeAfterStrategy(
new ASNodeSwitch(walker), new ASBeforeNodeStrategy(emitter),
new ASAfterNodeStrategy(emitter));
walker.setStrategy(strategy);
return walker;
}
@Override
public JSFilterWriter createFilterWriter(IASProject project)
{
StringWriter out = new StringWriter();
JSFilterWriter writer = new JSFilterWriter(out);
return writer;
}
@Override
public IJSWriter createWriter(IASProject project,
List<ICompilerProblem> problems, ICompilationUnit compilationUnit,
boolean enableDebug)
{
return new JSWriter(project, problems, compilationUnit, enableDebug);
}
@Override
public IDocEmitter createDocEmitter(IASEmitter emitter)
{
return new JSDocEmitter((IJSEmitter) emitter);
}
protected IJSEmitter createEmitter(FilterWriter out)
{
return new JSEmitter(out);
}
}