/*
* Copyright 2006 Google Inc.
*
* 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.gwt.dev.shell;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.CompilationUnitProvider;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.dev.jdt.StandardSourceOracle;
import com.google.gwt.dev.jdt.StaticCompilationUnitProvider;
import com.google.gwt.util.tools.Utility;
import java.io.IOException;
/**
* Does a little extra magic to handle hosted mode JSNI and
* <code>GWT.create()</code>.
*/
public class HostedModeSourceOracle extends StandardSourceOracle {
private final JsniInjector injector;
public HostedModeSourceOracle(TypeOracle typeOracle) {
super(typeOracle);
this.injector = new JsniInjector(typeOracle);
}
protected CompilationUnitProvider doFilterCompilationUnit(TreeLogger logger,
String typeName, CompilationUnitProvider existing)
throws UnableToCompleteException {
/*
* MAGIC: The implementation of GWT can be very different between hosted
* mode and web mode. The compiler has special knowledge of GWT for web
* mode. The source for hosted mode is in GWT.java-hosted.
*/
if (typeName.equals("com.google.gwt.core.client.GWT")) {
try {
String source = Utility.getFileFromClassPath("com/google/gwt/core/client/GWT.java-hosted");
return new StaticCompilationUnitProvider("com.google.gwt.core.client",
"GWT", source.toCharArray());
} catch (IOException e) {
logger.log(
TreeLogger.ERROR,
"Unable to load 'com/google/gwt/core/client/GWT.java-hosted' from class path; is your installation corrupt?",
e);
throw new UnableToCompleteException();
}
}
// Otherwise, it's a regular translatable type, but we want to make sure
// its JSNI stuff, if any, gets handled.
//
CompilationUnitProvider jsnified = injector.inject(logger, existing);
return jsnified;
}
}