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/*
* Copyright (C) 2011 The Android Open Source Project
*
* 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.android.tools.lint.client.api;
import static com.android.SdkConstants.ANDROID_PKG;
import static com.android.SdkConstants.R_CLASS;
import com.android.annotations.NonNull;
import com.android.tools.lint.client.api.JavaParser.ResolvedClass;
import com.android.tools.lint.client.api.JavaParser.ResolvedMethod;
import com.android.tools.lint.client.api.JavaParser.ResolvedNode;
import com.android.tools.lint.detector.api.Detector;
import com.android.tools.lint.detector.api.Detector.JavaScanner;
import com.android.tools.lint.detector.api.Detector.XmlScanner;
import com.android.tools.lint.detector.api.JavaContext;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import lombok.ast.AlternateConstructorInvocation;
import lombok.ast.Annotation;
import lombok.ast.AnnotationDeclaration;
import lombok.ast.AnnotationElement;
import lombok.ast.AnnotationMethodDeclaration;
import lombok.ast.AnnotationValueArray;
import lombok.ast.ArrayAccess;
import lombok.ast.ArrayCreation;
import lombok.ast.ArrayDimension;
import lombok.ast.ArrayInitializer;
import lombok.ast.Assert;
import lombok.ast.AstVisitor;
import lombok.ast.BinaryExpression;
import lombok.ast.Block;
import lombok.ast.BooleanLiteral;
import lombok.ast.Break;
import lombok.ast.Case;
import lombok.ast.Cast;
import lombok.ast.Catch;
import lombok.ast.CharLiteral;
import lombok.ast.ClassDeclaration;
import lombok.ast.ClassLiteral;
import lombok.ast.Comment;
import lombok.ast.CompilationUnit;
import lombok.ast.ConstructorDeclaration;
import lombok.ast.ConstructorInvocation;
import lombok.ast.Continue;
import lombok.ast.Default;
import lombok.ast.DoWhile;
import lombok.ast.EmptyDeclaration;
import lombok.ast.EmptyStatement;
import lombok.ast.EnumConstant;
import lombok.ast.EnumDeclaration;
import lombok.ast.EnumTypeBody;
import lombok.ast.Expression;
import lombok.ast.ExpressionStatement;
import lombok.ast.FloatingPointLiteral;
import lombok.ast.For;
import lombok.ast.ForEach;
import lombok.ast.ForwardingAstVisitor;
import lombok.ast.Identifier;
import lombok.ast.If;
import lombok.ast.ImportDeclaration;
import lombok.ast.InlineIfExpression;
import lombok.ast.InstanceInitializer;
import lombok.ast.InstanceOf;
import lombok.ast.IntegralLiteral;
import lombok.ast.InterfaceDeclaration;
import lombok.ast.KeywordModifier;
import lombok.ast.LabelledStatement;
import lombok.ast.MethodDeclaration;
import lombok.ast.MethodInvocation;
import lombok.ast.Modifiers;
import lombok.ast.Node;
import lombok.ast.NormalTypeBody;
import lombok.ast.NullLiteral;
import lombok.ast.PackageDeclaration;
import lombok.ast.Return;
import lombok.ast.Select;
import lombok.ast.StaticInitializer;
import lombok.ast.StringLiteral;
import lombok.ast.Super;
import lombok.ast.SuperConstructorInvocation;
import lombok.ast.Switch;
import lombok.ast.Synchronized;
import lombok.ast.This;
import lombok.ast.Throw;
import lombok.ast.Try;
import lombok.ast.TypeReference;
import lombok.ast.TypeReferencePart;
import lombok.ast.TypeVariable;
import lombok.ast.UnaryExpression;
import lombok.ast.VariableDeclaration;
import lombok.ast.VariableDefinition;
import lombok.ast.VariableDefinitionEntry;
import lombok.ast.VariableReference;
import lombok.ast.While;
/**
* Specialized visitor for running detectors on a Java AST.
* It operates in three phases:
*
*
First, it computes a set of maps where it generates a map from each
* significant AST attribute (such as method call names) to a list
* of detectors to consult whenever that attribute is encountered.
* Examples of "attributes" are method names, Android resource identifiers,
* and general AST node types such as "cast" nodes etc. These are
* defined on the {@link JavaScanner} interface.
*
Second, it iterates over the document a single time, delegating to
* the detectors found at each relevant AST attribute.
*
Finally, it calls the remaining visitors (those that need to process a
* whole document on their own).
*
* It also notifies all the detectors before and after the document is processed
* such that they can do pre- and post-processing.
*/
public class JavaVisitor {
/** Default size of lists holding detectors of the same type for a given node type */
private static final int SAME_TYPE_COUNT = 8;
private final Map> mMethodDetectors =
Maps.newHashMapWithExpectedSize(40);
private final Map> mConstructorDetectors =
Maps.newHashMapWithExpectedSize(12);
private Set mConstructorSimpleNames;
private final List mResourceFieldDetectors =
new ArrayList();
private final List mAllDetectors;
private final List mFullTreeDetectors;
private final Map, List> mNodeTypeDetectors =
new HashMap, List>(16);
private final JavaParser mParser;
private final Map> mSuperClassDetectors =
new HashMap>();
JavaVisitor(@NonNull JavaParser parser, @NonNull List detectors) {
mParser = parser;
mAllDetectors = new ArrayList(detectors.size());
mFullTreeDetectors = new ArrayList(detectors.size());
for (Detector detector : detectors) {
VisitingDetector v = new VisitingDetector(detector, (JavaScanner) detector);
mAllDetectors.add(v);
List applicableSuperClasses = detector.applicableSuperClasses();
if (applicableSuperClasses != null) {
for (String fqn : applicableSuperClasses) {
List list = mSuperClassDetectors.get(fqn);
if (list == null) {
list = new ArrayList(SAME_TYPE_COUNT);
mSuperClassDetectors.put(fqn, list);
}
list.add(v);
}
continue;
}
List> nodeTypes = detector.getApplicableNodeTypes();
if (nodeTypes != null) {
for (Class type : nodeTypes) {
List list = mNodeTypeDetectors.get(type);
if (list == null) {
list = new ArrayList(SAME_TYPE_COUNT);
mNodeTypeDetectors.put(type, list);
}
list.add(v);
}
}
List names = detector.getApplicableMethodNames();
if (names != null) {
// not supported in Java visitors; adding a method invocation node is trivial
// for that case.
assert names != XmlScanner.ALL;
for (String name : names) {
List list = mMethodDetectors.get(name);
if (list == null) {
list = new ArrayList(SAME_TYPE_COUNT);
mMethodDetectors.put(name, list);
}
list.add(v);
}
}
List types = detector.getApplicableConstructorTypes();
if (types != null) {
// not supported in Java visitors; adding a method invocation node is trivial
// for that case.
assert types != XmlScanner.ALL;
if (mConstructorSimpleNames == null) {
mConstructorSimpleNames = Sets.newHashSet();
}
for (String type : types) {
List list = mConstructorDetectors.get(type);
if (list == null) {
list = new ArrayList(SAME_TYPE_COUNT);
mConstructorDetectors.put(type, list);
mConstructorSimpleNames.add(type.substring(type.lastIndexOf('.')+1));
}
list.add(v);
}
}
if (detector.appliesToResourceRefs()) {
mResourceFieldDetectors.add(v);
} else if ((names == null || names.isEmpty())
&& (nodeTypes == null || nodeTypes.isEmpty())
&& (types == null || types.isEmpty())) {
mFullTreeDetectors.add(v);
}
}
}
void visitFile(@NonNull JavaContext context) {
Node compilationUnit = null;
try {
compilationUnit = mParser.parseJava(context);
if (compilationUnit == null) {
// No need to log this; the parser should be reporting
// a full warning (such as IssueRegistry#PARSER_ERROR)
// with details, location, etc.
return;
}
context.setCompilationUnit(compilationUnit);
for (VisitingDetector v : mAllDetectors) {
v.setContext(context);
v.getDetector().beforeCheckFile(context);
}
if (!mSuperClassDetectors.isEmpty()) {
SuperclassVisitor visitor = new SuperclassVisitor(context);
compilationUnit.accept(visitor);
}
for (VisitingDetector v : mFullTreeDetectors) {
AstVisitor visitor = v.getVisitor();
compilationUnit.accept(visitor);
}
if (!mMethodDetectors.isEmpty() || !mResourceFieldDetectors.isEmpty() ||
!mConstructorDetectors.isEmpty()) {
AstVisitor visitor = new DelegatingJavaVisitor(context);
compilationUnit.accept(visitor);
} else if (!mNodeTypeDetectors.isEmpty()) {
AstVisitor visitor = new DispatchVisitor();
compilationUnit.accept(visitor);
}
for (VisitingDetector v : mAllDetectors) {
v.getDetector().afterCheckFile(context);
}
} finally {
if (compilationUnit != null) {
mParser.dispose(context, compilationUnit);
}
}
}
public void prepare(@NonNull List contexts) {
mParser.prepareJavaParse(contexts);
}
public void dispose() {
mParser.dispose();
}
private static class VisitingDetector {
private AstVisitor mVisitor; // construct lazily, and clear out on context switch!
private JavaContext mContext;
public final Detector mDetector;
public final JavaScanner mJavaScanner;
public VisitingDetector(@NonNull Detector detector, @NonNull JavaScanner javaScanner) {
mDetector = detector;
mJavaScanner = javaScanner;
}
@NonNull
public Detector getDetector() {
return mDetector;
}
@NonNull
public JavaScanner getJavaScanner() {
return mJavaScanner;
}
public void setContext(@NonNull JavaContext context) {
mContext = context;
// The visitors are one-per-context, so clear them out here and construct
// lazily only if needed
mVisitor = null;
}
@NonNull
AstVisitor getVisitor() {
if (mVisitor == null) {
mVisitor = mDetector.createJavaVisitor(mContext);
if (mVisitor == null) {
mVisitor = new ForwardingAstVisitor() {
};
}
}
return mVisitor;
}
}
private class SuperclassVisitor extends ForwardingAstVisitor {
private JavaContext mContext;
public SuperclassVisitor(@NonNull JavaContext context) {
mContext = context;
}
@Override
public boolean visitClassDeclaration(ClassDeclaration node) {
ResolvedNode resolved = mContext.resolve(node);
if (!(resolved instanceof ResolvedClass)) {
return true;
}
ResolvedClass resolvedClass = (ResolvedClass) resolved;
ResolvedClass cls = resolvedClass;
while (cls != null) {
String fqcn = cls.getSignature();
if (fqcn != null) {
List list = mSuperClassDetectors.get(fqcn);
if (list != null) {
for (VisitingDetector v : list) {
v.getJavaScanner().checkClass(mContext, node, node, resolvedClass);
}
}
}
cls = cls.getSuperClass();
}
return false;
}
@Override
public boolean visitConstructorInvocation(ConstructorInvocation node) {
NormalTypeBody anonymous = node.astAnonymousClassBody();
if (anonymous != null) {
ResolvedNode resolved = mContext.resolve(anonymous);
if (resolved instanceof ResolvedMethod) {
resolved = ((ResolvedMethod) resolved).getContainingClass();
}
if (!(resolved instanceof ResolvedClass)) {
return true;
}
ResolvedClass resolvedClass = (ResolvedClass) resolved;
ResolvedClass cls = resolvedClass;
while (cls != null) {
String fqcn = cls.getSignature();
if (fqcn != null) {
List list = mSuperClassDetectors.get(fqcn);
if (list != null) {
for (VisitingDetector v : list) {
v.getJavaScanner().checkClass(mContext, null, anonymous,
resolvedClass);
}
}
}
cls = cls.getSuperClass();
}
}
return true;
}
@Override
public boolean visitImportDeclaration(ImportDeclaration node) {
return true;
}
}
/**
* Generic dispatcher which visits all nodes (once) and dispatches to
* specific visitors for each node. Each visitor typically only wants to
* look at a small part of a tree, such as a method call or a class
* declaration, so this means we avoid visiting all "uninteresting" nodes in
* the tree repeatedly.
*/
private class DispatchVisitor extends ForwardingAstVisitor {
@Override
public void endVisit(Node node) {
for (VisitingDetector v : mAllDetectors) {
v.getVisitor().endVisit(node);
}
}
@Override
public boolean visitAlternateConstructorInvocation(AlternateConstructorInvocation node) {
List list =
mNodeTypeDetectors.get(AlternateConstructorInvocation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAlternateConstructorInvocation(node);
}
}
return false;
}
@Override
public boolean visitAnnotation(Annotation node) {
List list = mNodeTypeDetectors.get(Annotation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAnnotation(node);
}
}
return false;
}
@Override
public boolean visitAnnotationDeclaration(AnnotationDeclaration node) {
List list = mNodeTypeDetectors.get(AnnotationDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAnnotationDeclaration(node);
}
}
return false;
}
@Override
public boolean visitAnnotationElement(AnnotationElement node) {
List list = mNodeTypeDetectors.get(AnnotationElement.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAnnotationElement(node);
}
}
return false;
}
@Override
public boolean visitAnnotationMethodDeclaration(AnnotationMethodDeclaration node) {
List list =
mNodeTypeDetectors.get(AnnotationMethodDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAnnotationMethodDeclaration(node);
}
}
return false;
}
@Override
public boolean visitAnnotationValueArray(AnnotationValueArray node) {
List list = mNodeTypeDetectors.get(AnnotationValueArray.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAnnotationValueArray(node);
}
}
return false;
}
@Override
public boolean visitArrayAccess(ArrayAccess node) {
List list = mNodeTypeDetectors.get(ArrayAccess.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitArrayAccess(node);
}
}
return false;
}
@Override
public boolean visitArrayCreation(ArrayCreation node) {
List list = mNodeTypeDetectors.get(ArrayCreation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitArrayCreation(node);
}
}
return false;
}
@Override
public boolean visitArrayDimension(ArrayDimension node) {
List list = mNodeTypeDetectors.get(ArrayDimension.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitArrayDimension(node);
}
}
return false;
}
@Override
public boolean visitArrayInitializer(ArrayInitializer node) {
List list = mNodeTypeDetectors.get(ArrayInitializer.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitArrayInitializer(node);
}
}
return false;
}
@Override
public boolean visitAssert(Assert node) {
List list = mNodeTypeDetectors.get(Assert.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitAssert(node);
}
}
return false;
}
@Override
public boolean visitBinaryExpression(BinaryExpression node) {
List list = mNodeTypeDetectors.get(BinaryExpression.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitBinaryExpression(node);
}
}
return false;
}
@Override
public boolean visitBlock(Block node) {
List list = mNodeTypeDetectors.get(Block.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitBlock(node);
}
}
return false;
}
@Override
public boolean visitBooleanLiteral(BooleanLiteral node) {
List list = mNodeTypeDetectors.get(BooleanLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitBooleanLiteral(node);
}
}
return false;
}
@Override
public boolean visitBreak(Break node) {
List list = mNodeTypeDetectors.get(Break.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitBreak(node);
}
}
return false;
}
@Override
public boolean visitCase(Case node) {
List list = mNodeTypeDetectors.get(Case.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitCase(node);
}
}
return false;
}
@Override
public boolean visitCast(Cast node) {
List list = mNodeTypeDetectors.get(Cast.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitCast(node);
}
}
return false;
}
@Override
public boolean visitCatch(Catch node) {
List list = mNodeTypeDetectors.get(Catch.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitCatch(node);
}
}
return false;
}
@Override
public boolean visitCharLiteral(CharLiteral node) {
List list = mNodeTypeDetectors.get(CharLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitCharLiteral(node);
}
}
return false;
}
@Override
public boolean visitClassDeclaration(ClassDeclaration node) {
List list = mNodeTypeDetectors.get(ClassDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitClassDeclaration(node);
}
}
return false;
}
@Override
public boolean visitClassLiteral(ClassLiteral node) {
List list = mNodeTypeDetectors.get(ClassLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitClassLiteral(node);
}
}
return false;
}
@Override
public boolean visitComment(Comment node) {
List list = mNodeTypeDetectors.get(Comment.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitComment(node);
}
}
return false;
}
@Override
public boolean visitCompilationUnit(CompilationUnit node) {
List list = mNodeTypeDetectors.get(CompilationUnit.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitCompilationUnit(node);
}
}
return false;
}
@Override
public boolean visitConstructorDeclaration(ConstructorDeclaration node) {
List list = mNodeTypeDetectors.get(ConstructorDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitConstructorDeclaration(node);
}
}
return false;
}
@Override
public boolean visitConstructorInvocation(ConstructorInvocation node) {
List list = mNodeTypeDetectors.get(ConstructorInvocation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitConstructorInvocation(node);
}
}
return false;
}
@Override
public boolean visitContinue(Continue node) {
List list = mNodeTypeDetectors.get(Continue.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitContinue(node);
}
}
return false;
}
@Override
public boolean visitDefault(Default node) {
List list = mNodeTypeDetectors.get(Default.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitDefault(node);
}
}
return false;
}
@Override
public boolean visitDoWhile(DoWhile node) {
List list = mNodeTypeDetectors.get(DoWhile.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitDoWhile(node);
}
}
return false;
}
@Override
public boolean visitEmptyDeclaration(EmptyDeclaration node) {
List list = mNodeTypeDetectors.get(EmptyDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitEmptyDeclaration(node);
}
}
return false;
}
@Override
public boolean visitEmptyStatement(EmptyStatement node) {
List list = mNodeTypeDetectors.get(EmptyStatement.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitEmptyStatement(node);
}
}
return false;
}
@Override
public boolean visitEnumConstant(EnumConstant node) {
List list = mNodeTypeDetectors.get(EnumConstant.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitEnumConstant(node);
}
}
return false;
}
@Override
public boolean visitEnumDeclaration(EnumDeclaration node) {
List list = mNodeTypeDetectors.get(EnumDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitEnumDeclaration(node);
}
}
return false;
}
@Override
public boolean visitEnumTypeBody(EnumTypeBody node) {
List list = mNodeTypeDetectors.get(EnumTypeBody.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitEnumTypeBody(node);
}
}
return false;
}
@Override
public boolean visitExpressionStatement(ExpressionStatement node) {
List list = mNodeTypeDetectors.get(ExpressionStatement.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitExpressionStatement(node);
}
}
return false;
}
@Override
public boolean visitFloatingPointLiteral(FloatingPointLiteral node) {
List list = mNodeTypeDetectors.get(FloatingPointLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitFloatingPointLiteral(node);
}
}
return false;
}
@Override
public boolean visitFor(For node) {
List list = mNodeTypeDetectors.get(For.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitFor(node);
}
}
return false;
}
@Override
public boolean visitForEach(ForEach node) {
List list = mNodeTypeDetectors.get(ForEach.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitForEach(node);
}
}
return false;
}
@Override
public boolean visitIdentifier(Identifier node) {
List list = mNodeTypeDetectors.get(Identifier.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitIdentifier(node);
}
}
return false;
}
@Override
public boolean visitIf(If node) {
List list = mNodeTypeDetectors.get(If.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitIf(node);
}
}
return false;
}
@Override
public boolean visitImportDeclaration(ImportDeclaration node) {
List list = mNodeTypeDetectors.get(ImportDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitImportDeclaration(node);
}
}
return false;
}
@Override
public boolean visitInlineIfExpression(InlineIfExpression node) {
List list = mNodeTypeDetectors.get(InlineIfExpression.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitInlineIfExpression(node);
}
}
return false;
}
@Override
public boolean visitInstanceInitializer(InstanceInitializer node) {
List list = mNodeTypeDetectors.get(InstanceInitializer.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitInstanceInitializer(node);
}
}
return false;
}
@Override
public boolean visitInstanceOf(InstanceOf node) {
List list = mNodeTypeDetectors.get(InstanceOf.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitInstanceOf(node);
}
}
return false;
}
@Override
public boolean visitIntegralLiteral(IntegralLiteral node) {
List list = mNodeTypeDetectors.get(IntegralLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitIntegralLiteral(node);
}
}
return false;
}
@Override
public boolean visitInterfaceDeclaration(InterfaceDeclaration node) {
List list = mNodeTypeDetectors.get(InterfaceDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitInterfaceDeclaration(node);
}
}
return false;
}
@Override
public boolean visitKeywordModifier(KeywordModifier node) {
List list = mNodeTypeDetectors.get(KeywordModifier.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitKeywordModifier(node);
}
}
return false;
}
@Override
public boolean visitLabelledStatement(LabelledStatement node) {
List list = mNodeTypeDetectors.get(LabelledStatement.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitLabelledStatement(node);
}
}
return false;
}
@Override
public boolean visitMethodDeclaration(MethodDeclaration node) {
List list = mNodeTypeDetectors.get(MethodDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitMethodDeclaration(node);
}
}
return false;
}
@Override
public boolean visitMethodInvocation(MethodInvocation node) {
List list = mNodeTypeDetectors.get(MethodInvocation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitMethodInvocation(node);
}
}
return false;
}
@Override
public boolean visitModifiers(Modifiers node) {
List list = mNodeTypeDetectors.get(Modifiers.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitModifiers(node);
}
}
return false;
}
@Override
public boolean visitNormalTypeBody(NormalTypeBody node) {
List list = mNodeTypeDetectors.get(NormalTypeBody.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitNormalTypeBody(node);
}
}
return false;
}
@Override
public boolean visitNullLiteral(NullLiteral node) {
List list = mNodeTypeDetectors.get(NullLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitNullLiteral(node);
}
}
return false;
}
@Override
public boolean visitPackageDeclaration(PackageDeclaration node) {
List list = mNodeTypeDetectors.get(PackageDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitPackageDeclaration(node);
}
}
return false;
}
@Override
public boolean visitParseArtefact(Node node) {
List list = mNodeTypeDetectors.get(Node.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitParseArtefact(node);
}
}
return false;
}
@Override
public boolean visitReturn(Return node) {
List list = mNodeTypeDetectors.get(Return.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitReturn(node);
}
}
return false;
}
@Override
public boolean visitSelect(Select node) {
List list = mNodeTypeDetectors.get(Select.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitSelect(node);
}
}
return false;
}
@Override
public boolean visitStaticInitializer(StaticInitializer node) {
List list = mNodeTypeDetectors.get(StaticInitializer.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitStaticInitializer(node);
}
}
return false;
}
@Override
public boolean visitStringLiteral(StringLiteral node) {
List list = mNodeTypeDetectors.get(StringLiteral.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitStringLiteral(node);
}
}
return false;
}
@Override
public boolean visitSuper(Super node) {
List list = mNodeTypeDetectors.get(Super.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitSuper(node);
}
}
return false;
}
@Override
public boolean visitSuperConstructorInvocation(SuperConstructorInvocation node) {
List list = mNodeTypeDetectors.get(SuperConstructorInvocation.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitSuperConstructorInvocation(node);
}
}
return false;
}
@Override
public boolean visitSwitch(Switch node) {
List list = mNodeTypeDetectors.get(Switch.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitSwitch(node);
}
}
return false;
}
@Override
public boolean visitSynchronized(Synchronized node) {
List list = mNodeTypeDetectors.get(Synchronized.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitSynchronized(node);
}
}
return false;
}
@Override
public boolean visitThis(This node) {
List list = mNodeTypeDetectors.get(This.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitThis(node);
}
}
return false;
}
@Override
public boolean visitThrow(Throw node) {
List list = mNodeTypeDetectors.get(Throw.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitThrow(node);
}
}
return false;
}
@Override
public boolean visitTry(Try node) {
List list = mNodeTypeDetectors.get(Try.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitTry(node);
}
}
return false;
}
@Override
public boolean visitTypeReference(TypeReference node) {
List list = mNodeTypeDetectors.get(TypeReference.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitTypeReference(node);
}
}
return false;
}
@Override
public boolean visitTypeReferencePart(TypeReferencePart node) {
List list = mNodeTypeDetectors.get(TypeReferencePart.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitTypeReferencePart(node);
}
}
return false;
}
@Override
public boolean visitTypeVariable(TypeVariable node) {
List list = mNodeTypeDetectors.get(TypeVariable.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitTypeVariable(node);
}
}
return false;
}
@Override
public boolean visitUnaryExpression(UnaryExpression node) {
List list = mNodeTypeDetectors.get(UnaryExpression.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitUnaryExpression(node);
}
}
return false;
}
@Override
public boolean visitVariableDeclaration(VariableDeclaration node) {
List list = mNodeTypeDetectors.get(VariableDeclaration.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitVariableDeclaration(node);
}
}
return false;
}
@Override
public boolean visitVariableDefinition(VariableDefinition node) {
List list = mNodeTypeDetectors.get(VariableDefinition.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitVariableDefinition(node);
}
}
return false;
}
@Override
public boolean visitVariableDefinitionEntry(VariableDefinitionEntry node) {
List list = mNodeTypeDetectors.get(VariableDefinitionEntry.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitVariableDefinitionEntry(node);
}
}
return false;
}
@Override
public boolean visitVariableReference(VariableReference node) {
List list = mNodeTypeDetectors.get(VariableReference.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitVariableReference(node);
}
}
return false;
}
@Override
public boolean visitWhile(While node) {
List list = mNodeTypeDetectors.get(While.class);
if (list != null) {
for (VisitingDetector v : list) {
v.getVisitor().visitWhile(node);
}
}
return false;
}
}
/** Performs common AST searches for method calls and R-type-field references.
* Note that this is a specialized form of the {@link DispatchVisitor}. */
private class DelegatingJavaVisitor extends DispatchVisitor {
private final JavaContext mContext;
private final boolean mVisitResources;
private final boolean mVisitMethods;
private final boolean mVisitConstructors;
public DelegatingJavaVisitor(JavaContext context) {
mContext = context;
mVisitMethods = !mMethodDetectors.isEmpty();
mVisitConstructors = !mConstructorDetectors.isEmpty();
mVisitResources = !mResourceFieldDetectors.isEmpty();
}
@Override
public boolean visitSelect(Select node) {
if (mVisitResources) {
// R.type.name
if (node.astOperand() instanceof Select) {
Select select = (Select) node.astOperand();
if (select.astOperand() instanceof VariableReference) {
VariableReference reference = (VariableReference) select.astOperand();
if (reference.astIdentifier().astValue().equals(R_CLASS)) {
String type = select.astIdentifier().astValue();
String name = node.astIdentifier().astValue();
// R -could- be referenced locally and really have been
// imported as "import android.R;" in the import statements,
// but this is not recommended (and in fact there's a specific
// lint rule warning against it)
boolean isFramework = false;
for (VisitingDetector v : mResourceFieldDetectors) {
JavaScanner detector = v.getJavaScanner();
//noinspection ConstantConditions
detector.visitResourceReference(mContext, v.getVisitor(),
node, type, name, isFramework);
}
return super.visitSelect(node);
}
}
}
// Arbitrary packages -- android.R.type.name, foo.bar.R.type.name
if (node.astIdentifier().astValue().equals(R_CLASS)) {
Node parent = node.getParent();
if (parent instanceof Select) {
Node grandParent = parent.getParent();
if (grandParent instanceof Select) {
Select select = (Select) grandParent;
String name = select.astIdentifier().astValue();
Expression typeOperand = select.astOperand();
if (typeOperand instanceof Select) {
Select typeSelect = (Select) typeOperand;
String type = typeSelect.astIdentifier().astValue();
boolean isFramework =
node.astIdentifier().astValue().equals(ANDROID_PKG);
for (VisitingDetector v : mResourceFieldDetectors) {
JavaScanner detector = v.getJavaScanner();
detector.visitResourceReference(mContext, v.getVisitor(),
node, type, name, isFramework);
}
}
}
}
}
}
return super.visitSelect(node);
}
@Override
public boolean visitMethodInvocation(MethodInvocation node) {
if (mVisitMethods) {
String methodName = node.astName().astValue();
List list = mMethodDetectors.get(methodName);
if (list != null) {
for (VisitingDetector v : list) {
v.getJavaScanner().visitMethod(mContext, v.getVisitor(), node);
}
}
}
return super.visitMethodInvocation(node);
}
@Override
public boolean visitConstructorInvocation(ConstructorInvocation node) {
if (mVisitConstructors) {
TypeReference typeReference = node.astTypeReference();
if (typeReference != null) {
TypeReferencePart last = typeReference.astParts().last();
if (last != null) {
String name = last.astIdentifier().astValue();
if (mConstructorSimpleNames.contains(name)) {
ResolvedNode resolved = mContext.resolve(node);
if (resolved instanceof ResolvedMethod) {
ResolvedMethod method = (ResolvedMethod) resolved;
String type = method.getContainingClass().getSignature();
List list = mConstructorDetectors.get(type);
if (list != null) {
for (VisitingDetector v : list) {
v.getJavaScanner().visitConstructor(mContext,
v.getVisitor(), node, method);
}
}
}
}
}
}
}
return super.visitConstructorInvocation(node);
}
}
}
