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Extensible checking of is inner class file

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This commit is contained in:
Alexander.Podkhalyuzin
2011-11-24 11:25:50 +04:00
committed by nik
parent 80b30ebcbe
commit b23de45f73
6 changed files with 99 additions and 77 deletions
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java/java-psi-impl/src/com/intellij/psi/impl/compiled/ClassFileStubBuilder.java
+13 -36
View File
@@ -15,6 +15,7 @@
*/
package com.intellij.psi.impl.compiled;
import com.intellij.openapi.extensions.Extensions;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.project.Project;
import com.intellij.psi.impl.source.JavaFileElementType;
@@ -28,26 +29,23 @@ import com.intellij.util.cls.ClsFormatException;
public class ClassFileStubBuilder implements BinaryFileStubBuilder {
@Override
public boolean acceptsFile(final VirtualFile file) {
return !isInner(file.getNameWithoutExtension(), new ParentDirectory(file));
}
static boolean isInner(final String name, final Directory directory) {
return isInner(name, 0, directory);
}
private static boolean isInner(final String name, final int from, final Directory directory) {
final int index = name.indexOf('$', from);
return index != -1 && (containsPart(directory, name, index) || isInner(name, index + 1, directory));
}
private static boolean containsPart(Directory directory, String name, int endIndex) {
return endIndex > 0 && directory.contains(name.substring(0, endIndex));
final ClsStubBuilderFactory[] factories = Extensions.getExtensions(ClsStubBuilderFactory.EP_NAME);
for (ClsStubBuilderFactory factory : factories) {
if (!factory.isInnerClass(file)) return true;
}
return false;
}
@Override
public StubElement buildStubTree(final VirtualFile file, final byte[] content, final Project project) {
try {
return ClsStubBuilder.build(file, content);
final ClsStubBuilderFactory[] factories = Extensions.getExtensions(ClsStubBuilderFactory.EP_NAME);
for (ClsStubBuilderFactory factory : factories) {
if (!factory.isInnerClass(file) && factory.canBeProcessed(file, content)) {
return factory.buildFileStub(file, content);
}
}
return null;
}
catch (ClsFormatException e) {
return null;
@@ -58,25 +56,4 @@ public class ClassFileStubBuilder implements BinaryFileStubBuilder {
public int getStubVersion() {
return JavaFileElementType.STUB_VERSION + 3;
}
interface Directory {
boolean contains(String name);
}
private static class ParentDirectory implements Directory {
private final VirtualFile myDirectory;
private final String myExtension;
private ParentDirectory(final VirtualFile file) {
myDirectory = file.getParent();
myExtension = file.getExtension();
}
@Override
public boolean contains(final String name) {
final String fullName = myExtension == null ? name : name + "." + myExtension;
return myDirectory != null && myDirectory.findChild(fullName) != null;
}
}
}
java/java-psi-impl/src/com/intellij/psi/impl/compiled/ClsStubBuilderFactory.java
+15 -4
View File
@@ -19,15 +19,26 @@ import com.intellij.openapi.extensions.ExtensionPointName;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiFile;
import com.intellij.psi.stubs.PsiFileStub;
import com.intellij.util.cls.ClsFormatException;
import org.jetbrains.annotations.Nullable;
/**
* @author ilyas
*/
public interface ClsStubBuilderFactory<T extends PsiFile> {
public abstract class ClsStubBuilderFactory<T extends PsiFile> {
ExtensionPointName<ClsStubBuilderFactory> EP_NAME = ExtensionPointName.create("com.intellij.clsStubBuilderFactory");
public static final ExtensionPointName<ClsStubBuilderFactory> EP_NAME = ExtensionPointName.create("com.intellij.clsStubBuilderFactory");
PsiFileStub<T> buildFileStub(final VirtualFile file, byte[] bytes);
@Nullable
public abstract PsiFileStub<T> buildFileStub(final VirtualFile file, byte[] bytes) throws ClsFormatException;
boolean canBeProcessed(final VirtualFile file, byte[] bytes);
public abstract boolean canBeProcessed(final VirtualFile file, byte[] bytes);
/**
* Should be fast, because of processing file only according to the name.
* It can be inconsistent with 'canBeProcessed' method.
* @param file classFile
* @return false in case if it's not inner class
*/
public abstract boolean isInnerClass(final VirtualFile file);
}
java/java-psi-impl/src/com/intellij/psi/impl/compiled/ClsStubBuilder.java → java/java-psi-impl/src/com/intellij/psi/impl/compiled/DefaultClsStubBuilderFactory.java
+65 -33
View File
@@ -15,7 +15,6 @@
*/
package com.intellij.psi.impl.compiled;
import com.intellij.openapi.extensions.Extensions;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiClass;
@@ -32,8 +31,71 @@ import java.io.IOException;
* @author max
*/
@SuppressWarnings({"HardCodedStringLiteral"})
public class ClsStubBuilder {
private ClsStubBuilder() { }
public class DefaultClsStubBuilderFactory extends ClsStubBuilderFactory {
@Override
public PsiFileStub buildFileStub(VirtualFile vFile, byte[] bytes) throws ClsFormatException {
final PsiJavaFileStubImpl file = new PsiJavaFileStubImpl("do.not.know.yet", true);
try {
ClassReader reader = new ClassReader(bytes);
final StubBuildingVisitor<VirtualFile>
classVisitor = new StubBuildingVisitor<VirtualFile>(vFile, VirtualFileInnerClassStrategy.INSTANCE, file, 0);
reader.accept(classVisitor, 0);
final PsiClassStub result = classVisitor.getResult();
if (result == null) return null;
//noinspection unchecked
file.setPackageName(getPackageName(result));
}
catch (Exception e) {
throw new ClsFormatException();
}
return file;
}
@Override
public boolean canBeProcessed(VirtualFile file, byte[] bytes) {
return true;
}
@Override
public boolean isInnerClass(VirtualFile file) {
return isInner(file.getNameWithoutExtension(), new ParentDirectory(file));
}
static boolean isInner(final String name, final Directory directory) {
return isInner(name, 0, directory);
}
private static boolean isInner(final String name, final int from, final Directory directory) {
final int index = name.indexOf('$', from);
return index != -1 && (containsPart(directory, name, index) || isInner(name, index + 1, directory));
}
private static boolean containsPart(Directory directory, String name, int endIndex) {
return endIndex > 0 && directory.contains(name.substring(0, endIndex));
}
interface Directory {
boolean contains(String name);
}
private static class ParentDirectory implements Directory {
private final VirtualFile myDirectory;
private final String myExtension;
private ParentDirectory(final VirtualFile file) {
myDirectory = file.getParent();
myExtension = file.getExtension();
}
@Override
public boolean contains(final String name) {
final String fullName = myExtension == null ? name : name + "." + myExtension;
return myDirectory != null && myDirectory.findChild(fullName) != null;
}
}
private static class VirtualFileInnerClassStrategy implements InnerClassSourceStrategy<VirtualFile> {
public static VirtualFileInnerClassStrategy INSTANCE = new VirtualFileInnerClassStrategy();
@@ -60,35 +122,6 @@ public class ClsStubBuilder {
}
}
@Nullable
public static PsiFileStub build(final VirtualFile vFile, byte[] bytes) throws ClsFormatException {
final ClsStubBuilderFactory[] factories = Extensions.getExtensions(ClsStubBuilderFactory.EP_NAME);
for (ClsStubBuilderFactory factory : factories) {
if (factory.canBeProcessed(vFile, bytes)) {
return factory.buildFileStub(vFile, bytes);
}
}
final PsiJavaFileStubImpl file = new PsiJavaFileStubImpl("do.not.know.yet", true);
try {
ClassReader reader = new ClassReader(bytes);
final StubBuildingVisitor<VirtualFile>
classVisitor = new StubBuildingVisitor<VirtualFile>(vFile, VirtualFileInnerClassStrategy.INSTANCE, file, 0);
reader.accept(classVisitor, 0);
final PsiClassStub result = classVisitor.getResult();
if (result == null) return null;
//noinspection unchecked
file.setPackageName(getPackageName(result));
}
catch (Exception e) {
throw new ClsFormatException();
}
return file;
}
private static String getPackageName(final PsiClassStub<PsiClass> result) {
final String fqn = result.getQualifiedName();
final String shortName = result.getName();
@@ -98,5 +131,4 @@ public class ClsStubBuilder {
return fqn.substring(0, fqn.lastIndexOf('.'));
}
}