+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpdt.internal.core.util;
-
-import java.util.ArrayList;
-
-import net.sourceforge.phpdt.core.IField;
-import net.sourceforge.phpdt.core.IJavaElement;
-import net.sourceforge.phpdt.core.IMethod;
-import net.sourceforge.phpdt.core.IType;
-import net.sourceforge.phpdt.core.compiler.CharOperation;
-import net.sourceforge.phpdt.internal.compiler.ASTVisitor;
-import net.sourceforge.phpdt.internal.compiler.ast.AbstractMethodDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.Argument;
-import net.sourceforge.phpdt.internal.compiler.ast.CompilationUnitDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.FieldDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.TypeDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.TypeReference;
-import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
-
-/**
- * Finds an ASTNode given an IJavaElement in a CompilationUnitDeclaration
- */
-public class ASTNodeFinder {
- private CompilationUnitDeclaration unit;
-
- public ASTNodeFinder(CompilationUnitDeclaration unit) {
- this.unit = unit;
- }
-
- /*
- * Finds the FieldDeclaration in the given ast corresponding to the given
- * field handle. Returns null if not found.
- */
- public FieldDeclaration findField(IField fieldHandle) {
- TypeDeclaration typeDecl = findType((IType) fieldHandle.getParent());
- if (typeDecl == null)
- return null;
- FieldDeclaration[] fields = typeDecl.fields;
- if (fields != null) {
- char[] fieldName = fieldHandle.getElementName().toCharArray();
- for (int i = 0, length = fields.length; i < length; i++) {
- FieldDeclaration field = fields[i];
- if (CharOperation.equals(fieldName, field.name)) {
- return field;
- }
- }
- }
- return null;
- }
-
- /*
- * Finds the Initializer in the given ast corresponding to the given
- * initializer handle. Returns null if not found.
- */
- // public Initializer findInitializer(IInitializer initializerHandle) {
- // TypeDeclaration typeDecl =
- // findType((IType)initializerHandle.getParent());
- // if (typeDecl == null) return null;
- // FieldDeclaration[] fields = typeDecl.fields;
- // if (fields != null) {
- // int occurenceCount = ((JavaElement)initializerHandle).occurrenceCount;
- // for (int i = 0, length = fields.length; i < length; i++) {
- // FieldDeclaration field = fields[i];
- // if (field instanceof Initializer && --occurenceCount == 0) {
- // return (Initializer)field;
- // }
- // }
- // }
- // return null;
- // }
- /*
- * Finds the AbstractMethodDeclaration in the given ast corresponding to the
- * given method handle. Returns null if not found.
- */
- public AbstractMethodDeclaration findMethod(IMethod methodHandle) {
- TypeDeclaration typeDecl = findType((IType) methodHandle.getParent());
- if (typeDecl == null)
- return null;
- AbstractMethodDeclaration[] methods = typeDecl.methods;
- if (methods != null) {
- char[] selector = methodHandle.getElementName().toCharArray();
- String[] parameterTypeSignatures = methodHandle.getParameterTypes();
- int parameterCount = parameterTypeSignatures.length;
- nextMethod: for (int i = 0, length = methods.length; i < length; i++) {
- AbstractMethodDeclaration method = methods[i];
- if (CharOperation.equals(selector, method.selector)) {
- Argument[] args = method.arguments;
- int argsLength = args == null ? 0 : args.length;
- if (argsLength == parameterCount) {
- for (int j = 0; j < parameterCount; j++) {
- TypeReference type = args[j].type;
- String signature = Util.typeSignature(type);
- if (!signature.equals(parameterTypeSignatures[j])) {
- continue nextMethod;
- }
- }
- return method;
- }
- }
- }
- }
- return null;
- }
-
- /*
- * Finds the TypeDeclaration in the given ast corresponding to the given
- * type handle. Returns null if not found.
- */
- public TypeDeclaration findType(IType typeHandle) {
- IJavaElement parent = typeHandle.getParent();
- final char[] typeName = typeHandle.getElementName().toCharArray();
- // final int occurenceCount = ((SourceType)typeHandle).occurrenceCount;
- final boolean findAnonymous = typeName.length == 0;
- class Visitor extends ASTVisitor {
- TypeDeclaration result;
-
- int count = 0;
-
- public boolean visit(TypeDeclaration typeDeclaration,
- BlockScope scope) {
- if (result != null)
- return false;
- // if ((typeDeclaration.bits & ASTNode.IsAnonymousTypeMASK) !=
- // 0) {
- // if (findAnonymous && ++count == occurenceCount) {
- // result = typeDeclaration;
- // }
- // } else {
- if (!findAnonymous
- && CharOperation.equals(typeName, typeDeclaration.name)) {
- result = typeDeclaration;
- }
- // }
- return false; // visit only one level
- }
- }
- switch (parent.getElementType()) {
- case IJavaElement.COMPILATION_UNIT:
- ArrayList types = this.unit.types;
- if (types != null) {
- for (int i = 0, length = types.size(); i < length; i++) {
- TypeDeclaration type = (TypeDeclaration) types.get(i);// [i];
- if (CharOperation.equals(typeName, type.name)) {
- return type;
- }
- }
- }
- break;
- case IJavaElement.TYPE:
- TypeDeclaration parentDecl = findType((IType) parent);
- if (parentDecl == null)
- return null;
- // types = parentDecl.memberTypes;
- // if (types != null) {
- // for (int i = 0, length = types.length; i < length; i++) {
- // TypeDeclaration type = types[i];
- // if (CharOperation.equals(typeName, type.name)) {
- // return type;
- // }
- // }
- // }
- break;
- case IJavaElement.FIELD:
- FieldDeclaration fieldDecl = findField((IField) parent);
- if (fieldDecl == null)
- return null;
- Visitor visitor = new Visitor();
- fieldDecl.traverse(visitor, null);
- return visitor.result;
- // case IJavaElement.INITIALIZER:
- // Initializer initializer = findInitializer((IInitializer)parent);
- // if (initializer == null) return null;
- // visitor = new Visitor();
- // initializer.traverse(visitor, null);
- // return visitor.result;
- case IJavaElement.METHOD:
- AbstractMethodDeclaration methodDecl = findMethod((IMethod) parent);
- if (methodDecl == null)
- return null;
- visitor = new Visitor();
- methodDecl.traverse(visitor, (ClassScope) null);
- return visitor.result;
- }
- return null;
- }
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff