+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2004, 2006 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpdt.core.dom;
-
-import java.util.Hashtable;
-import java.util.List;
-import java.util.Map;
-
-import org.eclipse.text.edits.MultiTextEdit;
-import org.eclipse.text.edits.TextEdit;
-
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.TextUtilities;
-
-import net.sourceforge.phpdt.core.dom.SimplePropertyDescriptor;
-import net.sourceforge.phpdt.core.dom.StructuralPropertyDescriptor;
-import net.sourceforge.phpdt.core.dom.rewrite.TargetSourceRangeComputer;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.ASTRewriteAnalyzer;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.LineInformation;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.ListRewriteEvent;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.NodeInfoStore;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.NodeRewriteEvent;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.RewriteEventStore;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.RewriteEventStore.CopySourceInfo;
-import net.sourceforge.phpdt.internal.core.dom.rewrite.RewriteEventStore.PropertyLocation;
-
-/**
- * Internal class: not intended to be used by client.
- * When AST modifications recording is enabled, all changes are recorded by this class.
- */
-class InternalASTRewrite extends NodeEventHandler {
-
- /** root node for the rewrite: Only nodes under this root are accepted */
- private CompilationUnit root;
-
- protected final RewriteEventStore eventStore;
- protected final NodeInfoStore nodeStore;
- protected final Hashtable clonedNodes;
-
- int cloneDepth = 0;
-
- /**
- * Constructor
- * @param root root node of the recorded ast.
- */
- public InternalASTRewrite(CompilationUnit root) {
- this.root = root;
- this.eventStore = new RewriteEventStore();
- this.nodeStore = new NodeInfoStore(root.getAST());
- this.clonedNodes = new Hashtable();
- }
-
- /**
- * Performs the rewrite: The rewrite events are translated to the corresponding in text changes.
- * @param document Document which describes the code of the AST that is passed in in the
- * constructor. This document is accessed read-only.
- * @param options options
- * @throws IllegalArgumentException if the rewrite fails
- * @return Returns the edit describing the text changes.
- */
- public TextEdit rewriteAST(IDocument document, Map options) {
- TextEdit result = new MultiTextEdit();
-
- final CompilationUnit rootNode = getRootNode();
- if (rootNode != null) {
- TargetSourceRangeComputer xsrComputer = new TargetSourceRangeComputer() {
- /**
- * This implementation of
- * {@link TargetSourceRangeComputer#computeSourceRange(ASTNode)}
- * is specialized to work in the case of internal AST rewriting, where the
- * original AST has been modified from its original form. This means that
- * one cannot trust that the root of the given node is the compilation unit.
- */
- public SourceRange computeSourceRange(ASTNode node) {
- int extendedStartPosition = rootNode.getExtendedStartPosition(node);
- int extendedLength = rootNode.getExtendedLength(node);
- return new SourceRange(extendedStartPosition, extendedLength);
- }
- };
- char[] content= document.get().toCharArray();
- LineInformation lineInfo= LineInformation.create(document);
- String lineDelim= TextUtilities.getDefaultLineDelimiter(document);
- List comments= rootNode.getCommentList();
-
- ASTRewriteAnalyzer visitor = new ASTRewriteAnalyzer(content, lineInfo, lineDelim, result, this.eventStore, this.nodeStore, comments, options, xsrComputer);
- rootNode.accept(visitor);
- }
- return result;
- }
-
- private void markAsMoveOrCopyTarget(ASTNode node, ASTNode newChild) {
- ASTNode source = (ASTNode)this.clonedNodes.get(newChild);
- if(source != null) {
- if(this.cloneDepth == 0) {
- PropertyLocation propertyLocation = this.eventStore.getPropertyLocation(source, RewriteEventStore.ORIGINAL);
- CopySourceInfo sourceInfo =
- this.eventStore.markAsCopySource(
- propertyLocation.getParent(),
- propertyLocation.getProperty(),
- source,
- false);
- this.nodeStore.markAsCopyTarget(newChild, sourceInfo);
- }
- } else if((newChild.getFlags() & ASTNode.ORIGINAL) != 0) {
- PropertyLocation propertyLocation = this.eventStore.getPropertyLocation(newChild, RewriteEventStore.ORIGINAL);
- CopySourceInfo sourceInfo =
- this.eventStore.markAsCopySource(
- propertyLocation.getParent(),
- propertyLocation.getProperty(),
- newChild,
- true);
- this.nodeStore.markAsCopyTarget(newChild, sourceInfo);
- }
- }
-
- private CompilationUnit getRootNode() {
- return this.root;
- }
-
- public String toString() {
- StringBuffer buf = new StringBuffer();
- buf.append("Events:\n"); //$NON-NLS-1$
- buf.append(this.eventStore.toString());
- return buf.toString();
- }
-
- void preValueChangeEvent(ASTNode node, SimplePropertyDescriptor property) {
- // force event creation
- this.getNodeEvent(node, property);
- }
-
- void postValueChangeEvent(ASTNode node, SimplePropertyDescriptor property) {
- NodeRewriteEvent event = this.getNodeEvent(node, property);
- event.setNewValue(node.getStructuralProperty(property));
- }
-
- void preAddChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- if(property.isChildProperty()) {
- NodeRewriteEvent event = this.getNodeEvent(node, property);
- event.setNewValue(child);
- if(child != null) {
- this.markAsMoveOrCopyTarget(node, child);
- }
- } else if(property.isChildListProperty()) {
- // force event creation
- this.getListEvent(node, property);
- }
- }
-
- void postAddChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- if(property.isChildListProperty()) {
-
- ListRewriteEvent event = this.getListEvent(node, property);
- List list = (List)node.getStructuralProperty(property);
- int i = list.indexOf(child);
- int s = list.size();
- int index;
- if(i + 1 < s) {
- ASTNode nextNode = (ASTNode)list.get(i + 1);
- index = event.getIndex(nextNode, ListRewriteEvent.NEW);
- } else {
- index = -1;
- }
- event.insert(child, index);
- if(child != null) {
- this.markAsMoveOrCopyTarget(node, child);
- }
- }
- }
-
- void preRemoveChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- if(property.isChildProperty()) {
- NodeRewriteEvent event = getNodeEvent(node, property);
- event.setNewValue(null);
- } else if(property.isChildListProperty()) {
- ListRewriteEvent event = this.getListEvent(node, property);
- int i = event.getIndex(child, ListRewriteEvent.NEW);
- NodeRewriteEvent nodeEvent = (NodeRewriteEvent)event.getChildren()[i];
- if(nodeEvent.getOriginalValue() == null) {
- event.revertChange(nodeEvent);
- } else {
- nodeEvent.setNewValue(null);
- }
- }
- }
-
- void preReplaceChildEvent(ASTNode node, ASTNode child, ASTNode newChild, StructuralPropertyDescriptor property) {
- if(property.isChildProperty()) {
- NodeRewriteEvent event = getNodeEvent(node, property);
- event.setNewValue(newChild);
- if(newChild != null) {
- this.markAsMoveOrCopyTarget(node, newChild);
- }
- } else if(property.isChildListProperty()) {
- ListRewriteEvent event = this.getListEvent(node, property);
- int i = event.getIndex(child, ListRewriteEvent.NEW);
- NodeRewriteEvent nodeEvent = (NodeRewriteEvent)event.getChildren()[i];
- nodeEvent.setNewValue(newChild);
- if(newChild != null) {
- this.markAsMoveOrCopyTarget(node, newChild);
- }
- }
- }
-
-
- void preCloneNodeEvent(ASTNode node) {
- this.cloneDepth++;
- }
-
-
- void postCloneNodeEvent(ASTNode node, ASTNode clone) {
- if(node.ast == root.ast && clone.ast == root.ast) {
- if((node.getFlags() & ASTNode.ORIGINAL) != 0) {
- this.clonedNodes.put(clone, node);
- } else {
- // node can be a cloned node
- Object original = this.clonedNodes.get(node);
- if(original != null) {
- this.clonedNodes.put(clone, original);
- }
- }
- }
- this.cloneDepth--;
- }
-
- private NodeRewriteEvent getNodeEvent(ASTNode node, StructuralPropertyDescriptor property) {
- return this.eventStore.getNodeEvent(node, property, true);
- }
-
- private ListRewriteEvent getListEvent(ASTNode node, StructuralPropertyDescriptor property) {
- return this.eventStore.getListEvent(node, property, true);
- }
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff