/*
* Copyright 2013-2017 consulo.io
*
* 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 consulo.csharp.lang.psi.impl.stub.elementTypes;
import java.io.IOException;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import com.intellij.lang.ASTNode;
import com.intellij.lang.Language;
import com.intellij.lang.LanguageParserDefinitions;
import com.intellij.lang.PsiBuilder;
import com.intellij.lang.PsiBuilderFactory;
import com.intellij.lang.PsiParser;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleUtilCore;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.FileViewProvider;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.StubBuilder;
import com.intellij.psi.stubs.DefaultStubBuilder;
import com.intellij.psi.stubs.StubElement;
import com.intellij.psi.stubs.StubInputStream;
import com.intellij.psi.tree.IStubFileElementType;
import com.intellij.testFramework.LightVirtualFile;
import com.intellij.util.indexing.IndexingDataKeys;
import consulo.annotations.RequiredReadAction;
import consulo.csharp.lang.CSharpLanguage;
import consulo.csharp.lang.CSharpLanguageVersionWrapper;
import consulo.csharp.lang.psi.impl.source.CSharpFileImpl;
import consulo.csharp.lang.psi.impl.stub.CSharpFileStub;
import consulo.dotnet.module.extension.DotNetSimpleModuleExtension;
import consulo.lang.LanguageVersion;
/**
* @author VISTALL
* @since 15.12.13.
*/
public class CSharpFileStubElementType extends IStubFileElementType<CSharpFileStub>
{
public static final Key<Set<String>> PREPROCESSOR_VARIABLES = Key.create("csharp.preprocessor.variables");
public CSharpFileStubElementType()
{
super("CSHARP_FILE", CSharpLanguage.INSTANCE);
}
@Override
public StubBuilder getBuilder()
{
return new DefaultStubBuilder()
{
@NotNull
@Override
protected StubElement createStubForFile(@NotNull PsiFile file)
{
if(file instanceof CSharpFileImpl)
{
return new CSharpFileStub((CSharpFileImpl) file);
}
return super.createStubForFile(file);
}
};
}
@RequiredReadAction
@Override
protected ASTNode doParseContents(@NotNull ASTNode chameleon, @NotNull PsiElement psi)
{
final Project project = psi.getProject();
final Language languageForParser = getLanguageForParser(psi);
final LanguageVersion tempLanguageVersion = chameleon.getUserData(LanguageVersion.KEY);
final CSharpLanguageVersionWrapper languageVersion = (CSharpLanguageVersionWrapper) (tempLanguageVersion == null ? psi.getLanguageVersion() : tempLanguageVersion);
FileViewProvider viewProvider = ((PsiFile) psi).getViewProvider();
VirtualFile virtualFile = viewProvider.getVirtualFile();
if(virtualFile instanceof LightVirtualFile)
{
virtualFile = ((LightVirtualFile) virtualFile).getOriginalFile();
// we need call second time, due second original file will be light
if(virtualFile instanceof LightVirtualFile)
{
virtualFile = ((LightVirtualFile) virtualFile).getOriginalFile();
}
}
if(virtualFile == null)
{
virtualFile = psi.getUserData(IndexingDataKeys.VIRTUAL_FILE);
}
Set<String> defVariables = Collections.emptySet();
if(virtualFile != null)
{
List<String> variables = findVariables(virtualFile, project);
if(variables != null)
{
defVariables = new HashSet<>(variables);
}
}
final PsiBuilder builder = PsiBuilderFactory.getInstance().createBuilder(project, chameleon, null, languageForParser, languageVersion, chameleon.getChars());
builder.putUserData(PREPROCESSOR_VARIABLES, defVariables);
final PsiParser parser = LanguageParserDefinitions.INSTANCE.forLanguage(languageForParser).createParser(languageVersion);
return parser.parse(this, builder, languageVersion).getFirstChildNode();
}
@Nullable
@RequiredReadAction
private static List<String> findVariables(@NotNull VirtualFile virtualFile, @NotNull Project project)
{
Module module = ModuleUtilCore.findModuleForFile(virtualFile, project);
if(module == null)
{
return null;
}
DotNetSimpleModuleExtension<?> extension = ModuleUtilCore.getExtension(module, DotNetSimpleModuleExtension.class);
if(extension != null)
{
return extension.getVariables();
}
return null;
}
@NotNull
@Override
public CSharpFileStub deserialize(@NotNull StubInputStream dataStream, StubElement parentStub) throws IOException
{
return new CSharpFileStub(null);
}
@Override
public int getStubVersion()
{
return 86;
}
@NotNull
@Override
public String getExternalId()
{
return "csharp.file";
}
}