/*
* Copyright (c) 2014, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
*
* 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.dart.engine.internal.task;
import com.google.dart.engine.context.AnalysisException;
import com.google.dart.engine.error.AnalysisError;
import com.google.dart.engine.html.ast.HtmlUnit;
import com.google.dart.engine.internal.context.InternalAnalysisContext;
import com.google.dart.engine.internal.context.RecordingErrorListener;
import com.google.dart.engine.internal.html.polymer.PolymerHtmlUnitBuilder;
import com.google.dart.engine.source.Source;
import com.google.dart.engine.utilities.source.LineInfo;
/**
* Instances of the class {@code PolymerBuildHtmlTask} build Polymer specific elements.
*/
public class PolymerBuildHtmlTask extends AnalysisTask {
/**
* The source to build which Polymer HTML elements for.
*/
private final Source source;
/**
* The time at which the contents of the source were last modified.
*/
private final long modificationTime;
/**
* The line information associated with the source.
*/
private final LineInfo lineInfo;
/**
* The HTML unit to be resolved.
*/
private final HtmlUnit unit;
/**
* The resolution errors that were discovered while building elements.
*/
private AnalysisError[] errors = AnalysisError.NO_ERRORS;
/**
* Initialize a newly created task to perform analysis within the given context.
*
* @param context the context in which the task is to be performed
* @param source the source to be resolved
* @param modificationTime the time at which the contents of the source were last modified
* @param lineInfo the line information associated with the source
* @param unit the HTML unit to build Polymer elements for
*/
public PolymerBuildHtmlTask(InternalAnalysisContext context, Source source,
long modificationTime, LineInfo lineInfo, HtmlUnit unit) {
super(context);
this.source = source;
this.modificationTime = modificationTime;
this.lineInfo = lineInfo;
this.unit = unit;
}
@Override
public <E> E accept(AnalysisTaskVisitor<E> visitor) throws AnalysisException {
return visitor.visitPolymerBuildHtmlTask(this);
}
public AnalysisError[] getErrors() {
return errors;
}
/**
* Return the time at which the contents of the source that was parsed were last modified, or a
* negative value if the task has not yet been performed or if an exception occurred.
*
* @return the time at which the contents of the source that was parsed were last modified
*/
public long getModificationTime() {
return modificationTime;
}
/**
* Return the source that was or is to be created elements in.
*
* @return the source was or is to be created elements in
*/
public Source getSource() {
return source;
}
@Override
protected String getTaskDescription() {
return "build Polymer elements " + source.getFullName();
}
@Override
protected void internalPerform() throws AnalysisException {
RecordingErrorListener errorListener = new RecordingErrorListener();
PolymerHtmlUnitBuilder resolver = new PolymerHtmlUnitBuilder(
getContext(),
errorListener,
source,
lineInfo,
unit);
resolver.build();
errors = errorListener.getErrorsForSource(source);
}
}