/*
* 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.element.HtmlElement;
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.element.angular.AngularApplication;
import com.google.dart.engine.internal.html.angular.AngularHtmlUnitResolver;
import com.google.dart.engine.source.Source;
import com.google.dart.engine.utilities.source.LineInfo;
/**
* Instances of the class {@code ResolveAngularEntryHtmlTask} resolve a specific HTML file as an
* Angular entry point.
*/
public class ResolveAngularEntryHtmlTask extends AnalysisTask {
/**
* The source to be resolved.
*/
private final Source source;
/**
* The time at which the contents of the source were last modified.
*/
private long modificationTime;
/**
* The HTML unit to be resolved.
*/
private HtmlUnit unit;
/**
* The listener to record errors.
*/
private final RecordingErrorListener errorListener = new RecordingErrorListener();
/**
* The {@link HtmlUnit} that was resolved by this task.
*/
private HtmlUnit resolvedUnit;
/**
* The element produced by resolving the source.
*/
private HtmlElement element = null;
/**
* The Angular application to resolve in context of.
*/
private AngularApplication application;
/**
* 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 unit the HTML unit to be resolved
*/
public ResolveAngularEntryHtmlTask(InternalAnalysisContext context, Source source,
long modificationTime, HtmlUnit unit) {
super(context);
this.source = source;
this.modificationTime = modificationTime;
this.unit = unit;
}
@Override
public <E> E accept(AnalysisTaskVisitor<E> visitor) throws AnalysisException {
return visitor.visitResolveAngularEntryHtmlTask(this);
}
/**
* Returns the {@link AngularApplication} for the Web application with this Angular entry point,
* maybe {@code null} if not an Angular entry point.
*/
public AngularApplication getApplication() {
return application;
}
public HtmlElement getElement() {
return element;
}
/**
* The resolution errors that were discovered while resolving the source.
*/
public AnalysisError[] getEntryErrors() {
return errorListener.getErrorsForSource(source);
}
/**
* Returns {@link AnalysisError}s recorded for the given {@link Source}.
*/
public AnalysisError[] getErrors(Source source) {
return errorListener.getErrorsForSource(source);
}
/**
* 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 {@link HtmlUnit} that was resolved by this task.
*
* @return the {@link HtmlUnit} that was resolved by this task
*/
public HtmlUnit getResolvedUnit() {
return resolvedUnit;
}
/**
* Return the source that was or is to be resolved.
*
* @return the source was or is to be resolved
*/
public Source getSource() {
return source;
}
@Override
protected String getTaskDescription() {
if (source == null) {
return "resolve as Angular entry point null source";
}
return "resolve as Angular entry point " + source.getFullName();
}
@Override
protected void internalPerform() throws AnalysisException {
//
// Prepare for resolution.
//
LineInfo lineInfo = getContext().getLineInfo(source);
//
// Try to resolve as an Angular entry point.
//
application = new AngularHtmlUnitResolver(getContext(), errorListener, source, lineInfo, unit).calculateAngularApplication();
//
// Perform resolution.
//
if (application != null) {
new AngularHtmlUnitResolver(getContext(), errorListener, source, lineInfo, unit).resolveEntryPoint(application);
}
//
// Remember the resolved unit.
//
resolvedUnit = unit;
}
}