/*
*
* 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.targets;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;
import org.apache.flex.compiler.constants.IMetaAttributeConstants;
import org.apache.flex.compiler.definitions.IClassDefinition;
import org.apache.flex.compiler.definitions.IDefinition;
import org.apache.flex.compiler.definitions.ITypeDefinition;
import org.apache.flex.compiler.definitions.metadata.IMetaTag;
import org.apache.flex.compiler.definitions.references.IResolvedQualifiersReference;
import org.apache.flex.compiler.definitions.references.ReferenceFactory;
import org.apache.flex.compiler.internal.projects.FlexProject;
import org.apache.flex.compiler.internal.units.ASCompilationUnit;
import org.apache.flex.compiler.internal.units.MXMLCompilationUnit;
import org.apache.flex.compiler.mxml.IMXMLTypeConstants;
import org.apache.flex.compiler.problems.CompiledAsAComponentProblem;
import org.apache.flex.compiler.problems.ICompilerProblem;
import org.apache.flex.compiler.targets.ITargetSettings;
import org.apache.flex.compiler.units.ICompilationUnit;
import org.apache.flex.compiler.units.ICompilationUnit.UnitType;
import org.apache.flex.compiler.units.requests.IFileScopeRequestResult;
import com.google.common.collect.ImmutableSet;
/**
* Concrete sub-class of {@code FlexFrame1Info} that contains information about code that uses the Flex
* framework that is needed by the compiler to generate code in the first frame
* of Flex application SWFs.
* <p>
* This information is collected by looking at all the {@link ICompilationUnit}s
* that will be built into a Flex application SWF.
*/
final class FlexApplicationFrame1Info extends FlexFrame1Info
{
FlexApplicationFrame1Info(FlexProject flexProject,
ITargetSettings targetSettings,
IClassDefinition mainApplicationClassDefinition,
boolean generateSystemManagerAndFlexInit,
boolean isFlexInfo,
ImmutableSet<ICompilationUnit> builtCompilationUnits) throws InterruptedException
{
super(flexProject);
this.targetSettings = targetSettings;
this.mainApplicationClassDefinition = mainApplicationClassDefinition;
this.generateSystemManagerAndFlexInit = generateSystemManagerAndFlexInit;
this.isFlexInfo = isFlexInfo;
// sorted set of mixin classes
mixinClassNames = new TreeSet<String>();
contributingSWCs = new HashSet<String>();
appAndModuleDefs = new ApplicationAndModuleDefinitions();
collectFromCompilationUnits(builtCompilationUnits);
}
private final ITargetSettings targetSettings;
private final IClassDefinition mainApplicationClassDefinition;
private final boolean generateSystemManagerAndFlexInit;
private final boolean isFlexInfo;
private final ApplicationAndModuleDefinitions appAndModuleDefs;
/**
* sorted {@link Set} of mixin classes.
*/
final TreeSet<String> mixinClassNames;
final HashSet<String> contributingSWCs;
/**
* {@inheritDoc}
* <p>
* In addition to the information collected by the base class (
* {@link FlexFrame1Info} ), this class collects:
* <ul>
* <li>Mix-in class names</li>
* <li>File names of SWCs that contributed to code the flex application SWF</li>
* <li>Problems about application sub-classes that are not the root class of
* a flex application SWF</li>
* </ul>
*/
protected void collectFromCompilationUnit(ICompilationUnit cu) throws InterruptedException
{
super.collectFromCompilationUnit(cu);
if (generateSystemManagerAndFlexInit)
{
collectMixinMetaData(mixinClassNames, cu);
collectContributingSWCs(contributingSWCs, cu);
checkForCompiledAsAComponentProblem(appAndModuleDefs, problems, cu);
}
else if (isFlexInfo)
{
collectMixinMetaData(mixinClassNames, cu);
}
}
/**
* Collects names of classes that are mix-ins.
*
* @param compilationUnit
* @throws InterruptedException
*/
public static void collectMixinMetaData(TreeSet<String> mixinClassNames, ICompilationUnit compilationUnit) throws InterruptedException
{
IFileScopeRequestResult result = compilationUnit.getFileScopeRequest().get();
for(IDefinition def : result.getExternallyVisibleDefinitions())
{
IMetaTag md = def.getMetaTagByName(IMetaAttributeConstants.ATTRIBUTE_MIXIN);
if (md != null)
mixinClassNames.add(def.getQualifiedName());
}
}
/**
* Collect the swcs that are contributing compilation units to this swf.
*
* @param cu
*/
private void collectContributingSWCs(HashSet<String> contributingSWCs, ICompilationUnit cu)
{
// If we are not removing unused RSLs, then we don't need to
// collect the swcs.
if (!targetSettings.removeUnusedRuntimeSharedLibraryPaths())
return;
if (cu.getCompilationUnitType() == UnitType.SWC_UNIT)
contributingSWCs.add(cu.getAbsoluteFilename());
}
/**
* Check if the compilation unit extends IModule, mx:Application, or s:Application and it not the
* main class of the application.
*
* @param cu
* @throws InterruptedException
*/
private void checkForCompiledAsAComponentProblem(ApplicationAndModuleDefinitions appAndModuleDefs, ArrayList<ICompilerProblem> problems, ICompilationUnit cu) throws InterruptedException
{
// only check compiled source.
if (!(cu instanceof MXMLCompilationUnit || cu instanceof ASCompilationUnit) ||
mainApplicationClassDefinition == null)
return;
IFileScopeRequestResult result = cu.getFileScopeRequest().get();
for (IDefinition def : result.getExternallyVisibleDefinitions())
{
if (appAndModuleDefs. isApplicationOrModule(def))
{
assert def instanceof ITypeDefinition;
final ITypeDefinition typeDef = (ITypeDefinition)def;
// If the mainClass extends this class then don't report a problem
assert mainApplicationClassDefinition instanceof ITypeDefinition;
if (!mainApplicationClassDefinition.isInstanceOf(typeDef, flexProject))
{
problems.add(new CompiledAsAComponentProblem(cu.getName(),
mainApplicationClassDefinition.getBaseName()));
}
}
}
}
/**
* @return A {@link Set} of {@link String}s containing the dotted fully
* qualified names of mix-in classes.
*/
Set<String> getMixins()
{
return this.mixinClassNames;
}
/**
* Helper class that holds {@link ITypeDefinition}s for:
* <ul>
* <li>{@code spark.components.Application}</li>
* <li>{@code mx.core.Application}</li>
* <li>{@code mx.modules.IModule}</li>
* </ul>
*/
private class ApplicationAndModuleDefinitions
{
ApplicationAndModuleDefinitions()
{
IResolvedQualifiersReference sparkAppRef = ReferenceFactory.packageQualifiedReference(
flexProject.getWorkspace(), IMXMLTypeConstants.SparkApplication);
IResolvedQualifiersReference haloAppRef = ReferenceFactory.packageQualifiedReference(
flexProject.getWorkspace(), IMXMLTypeConstants.HaloApplication);
IResolvedQualifiersReference iModuleRef = ReferenceFactory.packageQualifiedReference(
flexProject.getWorkspace(), IMXMLTypeConstants.IModule);
sparkApplication = resolveType(sparkAppRef);
haloApplication = resolveType(haloAppRef);
iModule = resolveType(iModuleRef);
}
final ITypeDefinition sparkApplication;
final ITypeDefinition haloApplication;
final ITypeDefinition iModule;
/**
* Test if the definition inherits from IModule, Spark Application,
* or Halo Application.
*
* @param def {@link IDefinition} to check.
* @return true if the definition inherits from IModule, Spark
* Application, and Halo Application but is itself not an IModule,
* Spark Application, or Halo Application.
*/
boolean isApplicationOrModule(IDefinition def)
{
if (!(def instanceof ITypeDefinition))
return false;
ITypeDefinition typeDef = (ITypeDefinition)def;
if (typeDef == sparkApplication ||
typeDef == iModule ||
typeDef == haloApplication)
{
return false;
}
return ((sparkApplication != null && typeDef.isInstanceOf(sparkApplication, flexProject)) ||
(iModule != null && typeDef.isInstanceOf(iModule, flexProject)) ||
(haloApplication != null && typeDef.isInstanceOf(iModule, flexProject)));
}
private ITypeDefinition resolveType(IResolvedQualifiersReference ref)
{
IDefinition def = ref.resolve(flexProject);
if (!(def instanceof ITypeDefinition))
return null;
return (ITypeDefinition)def;
}
}
}