--- /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 org.eclipse.jdt.internal.compiler.parser;
+
+/**
+ * Internal field structure for parsing recovery
+ */
+import org.eclipse.jdt.internal.compiler.ast.ArrayTypeReference;
+import org.eclipse.jdt.internal.compiler.ast.ASTNode;
+import org.eclipse.jdt.internal.compiler.ast.Expression;
+import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.Statement;
+import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
+
+public class RecoveredField extends RecoveredElement {
+
+ public FieldDeclaration fieldDeclaration;
+ boolean alreadyCompletedFieldInitialization;
+
+ public RecoveredType[] anonymousTypes;
+ public int anonymousTypeCount;
+public RecoveredField(FieldDeclaration fieldDeclaration, RecoveredElement parent, int bracketBalance){
+ this(fieldDeclaration, parent, bracketBalance, null);
+}
+public RecoveredField(FieldDeclaration fieldDeclaration, RecoveredElement parent, int bracketBalance, Parser parser){
+ super(parent, bracketBalance, parser);
+ this.fieldDeclaration = fieldDeclaration;
+ this.alreadyCompletedFieldInitialization = fieldDeclaration.initialization != null;
+}
+/*
+ * Record an expression statement if field is expecting an initialization expression,
+ * used for completion inside field initializers.
+ */
+public RecoveredElement add(Statement statement, int bracketBalanceValue) {
+
+ if (this.alreadyCompletedFieldInitialization || !(statement instanceof Expression)) {
+ return super.add(statement, bracketBalanceValue);
+ } else {
+ this.alreadyCompletedFieldInitialization = true;
+ this.fieldDeclaration.initialization = (Expression)statement;
+ this.fieldDeclaration.declarationSourceEnd = statement.sourceEnd;
+ this.fieldDeclaration.declarationEnd = statement.sourceEnd;
+ return this;
+ }
+}
+/*
+ * Record a type declaration if this field is expecting an initialization expression
+ * and the type is an anonymous type.
+ * Used for completion inside field initializers.
+ */
+public RecoveredElement add(TypeDeclaration typeDeclaration, int bracketBalanceValue) {
+
+ if (this.alreadyCompletedFieldInitialization
+ || ((typeDeclaration.bits & ASTNode.IsAnonymousTypeMASK) == 0)
+ || (this.fieldDeclaration.declarationSourceEnd != 0 && typeDeclaration.sourceStart > this.fieldDeclaration.declarationSourceEnd)) {
+ return super.add(typeDeclaration, bracketBalanceValue);
+ } else {
+ // Prepare anonymous type list
+ if (this.anonymousTypes == null) {
+ this.anonymousTypes = new RecoveredType[5];
+ this.anonymousTypeCount = 0;
+ } else {
+ if (this.anonymousTypeCount == this.anonymousTypes.length) {
+ System.arraycopy(
+ this.anonymousTypes,
+ 0,
+ (this.anonymousTypes = new RecoveredType[2 * this.anonymousTypeCount]),
+ 0,
+ this.anonymousTypeCount);
+ }
+ }
+ // Store type declaration as an anonymous type
+ RecoveredType element = new RecoveredType(typeDeclaration, this, bracketBalanceValue);
+ this.anonymousTypes[this.anonymousTypeCount++] = element;
+ return element;
+ }
+}
+/*
+ * Answer the associated parsed structure
+ */
+public ASTNode parseTree(){
+ return fieldDeclaration;
+}
+/*
+ * Answer the very source end of the corresponding parse node
+ */
+public int sourceEnd(){
+ return this.fieldDeclaration.declarationSourceEnd;
+}
+public String toString(int tab){
+ StringBuffer buffer = new StringBuffer(tabString(tab));
+ buffer.append("Recovered field:\n"); //$NON-NLS-1$
+ fieldDeclaration.print(tab + 1, buffer);
+ if (this.anonymousTypes != null) {
+ for (int i = 0; i < this.anonymousTypeCount; i++){
+ buffer.append("\n"); //$NON-NLS-1$
+ buffer.append(anonymousTypes[i].toString(tab + 1));
+ }
+ }
+ return buffer.toString();
+}
+public FieldDeclaration updatedFieldDeclaration(){
+
+ if (this.anonymousTypes != null && fieldDeclaration.initialization == null) {
+ for (int i = 0; i < this.anonymousTypeCount; i++){
+ if (anonymousTypes[i].preserveContent){
+ fieldDeclaration.initialization = this.anonymousTypes[i].updatedTypeDeclaration().allocation;
+ }
+ }
+ if (this.anonymousTypeCount > 0) fieldDeclaration.bits |= ASTNode.HasLocalTypeMASK;
+ }
+ return fieldDeclaration;
+}
+/*
+ * A closing brace got consumed, might have closed the current element,
+ * in which case both the currentElement is exited.
+ *
+ * Fields have no associated braces, thus if matches, then update parent.
+ */
+public RecoveredElement updateOnClosingBrace(int braceStart, int braceEnd){
+ if (bracketBalance > 0){ // was an array initializer
+ bracketBalance--;
+ if (bracketBalance == 0) alreadyCompletedFieldInitialization = true;
+ return this;
+ } else if (bracketBalance == 0) {
+ alreadyCompletedFieldInitialization = true;
+ updateSourceEndIfNecessary(braceEnd - 1);
+ }
+ if (parent != null){
+ return parent.updateOnClosingBrace(braceStart, braceEnd);
+ }
+ return this;
+}
+/*
+ * An opening brace got consumed, might be the expected opening one of the current element,
+ * in which case the bodyStart is updated.
+ */
+public RecoveredElement updateOnOpeningBrace(int braceStart, int braceEnd){
+ if (fieldDeclaration.declarationSourceEnd == 0
+ && fieldDeclaration.type instanceof ArrayTypeReference
+ && !alreadyCompletedFieldInitialization){
+ bracketBalance++;
+ return null; // no update is necessary (array initializer)
+ }
+ // might be an array initializer
+ this.updateSourceEndIfNecessary(braceStart - 1, braceEnd - 1);
+ return this.parent.updateOnOpeningBrace(braceStart, braceEnd);
+}
+public void updateParseTree(){
+ this.updatedFieldDeclaration();
+}
+/*
+ * Update the declarationSourceEnd of the corresponding parse node
+ */
+public void updateSourceEndIfNecessary(int bodyStart, int bodyEnd){
+ if (this.fieldDeclaration.declarationSourceEnd == 0) {
+ this.fieldDeclaration.declarationSourceEnd = bodyEnd;
+ this.fieldDeclaration.declarationEnd = bodyEnd;
+ }
+}
+}
projects / org.ibex.tool.git / blobdiff