| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.core.dom; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Variable declaration fragment AST node type, used in field declarations, |
| * local variable declarations, <code>ForStatement</code> initializers, |
| * and <code>LambdaExpression</code> parameters. |
| * In contrast to <code>SingleVariableDeclaration</code>, fragments are |
| * missing the modifiers and the type; these are either located in the fragment's |
| * parent node, or inferred (for lambda parameters). |
| * |
| * <pre> |
| * VariableDeclarationFragment: |
| * Identifier { Dimension } [ <b>=</b> Expression ] |
| * </pre> |
| * @since 2.0 |
| * @noinstantiate This class is not intended to be instantiated by clients. |
| */ |
| @SuppressWarnings("rawtypes") |
| public class VariableDeclarationFragment extends VariableDeclaration { |
| |
| /** |
| * The "name" structural property of this node type (child type: {@link SimpleName}). |
| * @since 3.0 |
| */ |
| public static final ChildPropertyDescriptor NAME_PROPERTY = |
| internalNamePropertyFactory(VariableDeclarationFragment.class); |
| |
| /** |
| * The "extraDimensions" structural property of this node type (type: {@link Integer}) (below JLS8 only). |
| * |
| * @since 3.0 |
| * @deprecated in JLS8 and later, use {@link VariableDeclarationFragment#EXTRA_DIMENSIONS2_PROPERTY} instead. |
| */ |
| public static final SimplePropertyDescriptor EXTRA_DIMENSIONS_PROPERTY = |
| internalExtraDimensionsPropertyFactory(VariableDeclarationFragment.class); |
| |
| /** |
| * The "extraDimensions2" structural property of this node type (element type: {@link Dimension}) (added in JLS8 API). |
| * @since 3.10 |
| */ |
| public static final ChildListPropertyDescriptor EXTRA_DIMENSIONS2_PROPERTY = |
| internalExtraDimensions2PropertyFactory(VariableDeclarationFragment.class); |
| |
| /** |
| * The "initializer" structural property of this node type (child type: {@link Expression}). |
| * @since 3.0 |
| */ |
| public static final ChildPropertyDescriptor INITIALIZER_PROPERTY = |
| internalInitializerPropertyFactory(VariableDeclarationFragment.class); |
| |
| /** |
| * A list of property descriptors (element type: |
| * {@link StructuralPropertyDescriptor}), |
| * or null if uninitialized. |
| * @since 3.0 |
| */ |
| private static final List PROPERTY_DESCRIPTORS; |
| |
| /** |
| * A list of property descriptors (element type: |
| * {@link StructuralPropertyDescriptor}), |
| * or null if uninitialized. |
| * @since 3.10 |
| */ |
| private static final List PROPERTY_DESCRIPTORS_8_0; |
| |
| static { |
| List propertyList = new ArrayList(4); |
| createPropertyList(VariableDeclarationFragment.class, propertyList); |
| addProperty(NAME_PROPERTY, propertyList); |
| addProperty(EXTRA_DIMENSIONS_PROPERTY, propertyList); |
| addProperty(INITIALIZER_PROPERTY, propertyList); |
| PROPERTY_DESCRIPTORS = reapPropertyList(propertyList); |
| |
| propertyList = new ArrayList(4); |
| createPropertyList(VariableDeclarationFragment.class, propertyList); |
| addProperty(NAME_PROPERTY, propertyList); |
| addProperty(EXTRA_DIMENSIONS2_PROPERTY, propertyList); |
| addProperty(INITIALIZER_PROPERTY, propertyList); |
| PROPERTY_DESCRIPTORS_8_0 = reapPropertyList(propertyList); |
| } |
| |
| /** |
| * Returns a list of structural property descriptors for this node type. |
| * Clients must not modify the result. |
| * |
| * @param apiLevel the API level; one of the |
| * <code>AST.JLS*</code> constants |
| * @return a list of property descriptors (element type: |
| * {@link StructuralPropertyDescriptor}) |
| * @since 3.0 |
| */ |
| public static List propertyDescriptors(int apiLevel) { |
| if (apiLevel >= AST.JLS8_INTERNAL) { |
| return PROPERTY_DESCRIPTORS_8_0; |
| } else { |
| return PROPERTY_DESCRIPTORS; |
| } |
| } |
| |
| /** |
| * Creates a new AST node for a variable declaration fragment owned by the |
| * given AST. By default, the variable declaration has: an unspecified |
| * (but legal) variable name, no initializer, and no extra array dimensions. |
| * <p> |
| * N.B. This constructor is package-private. |
| * </p> |
| * |
| * @param ast the AST that is to own this node |
| */ |
| VariableDeclarationFragment(AST ast) { |
| super(ast); |
| } |
| |
| @Override |
| final ChildPropertyDescriptor internalNameProperty() { |
| return NAME_PROPERTY; |
| } |
| |
| @Override |
| final SimplePropertyDescriptor internalExtraDimensionsProperty() { |
| return EXTRA_DIMENSIONS_PROPERTY; |
| } |
| |
| @Override |
| final ChildListPropertyDescriptor internalExtraDimensions2Property() { |
| return EXTRA_DIMENSIONS2_PROPERTY; |
| } |
| |
| @Override |
| final ChildPropertyDescriptor internalInitializerProperty() { |
| return INITIALIZER_PROPERTY; |
| } |
| |
| @Override |
| final List internalStructuralPropertiesForType(int apiLevel) { |
| return propertyDescriptors(apiLevel); |
| } |
| |
| @Override |
| final int internalGetSetIntProperty(SimplePropertyDescriptor property, boolean get, int value) { |
| if (property == EXTRA_DIMENSIONS_PROPERTY) { |
| if (get) { |
| return getExtraDimensions(); |
| } else { |
| internalSetExtraDimensions(value); |
| return 0; |
| } |
| } |
| // allow default implementation to flag the error |
| return super.internalGetSetIntProperty(property, get, value); |
| } |
| |
| @Override |
| final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) { |
| if (property == NAME_PROPERTY) { |
| if (get) { |
| return getName(); |
| } else { |
| setName((SimpleName) child); |
| return null; |
| } |
| } |
| if (property == INITIALIZER_PROPERTY) { |
| if (get) { |
| return getInitializer(); |
| } else { |
| setInitializer((Expression) child); |
| return null; |
| } |
| } |
| // allow default implementation to flag the error |
| return super.internalGetSetChildProperty(property, get, child); |
| } |
| |
| @Override |
| final List internalGetChildListProperty(ChildListPropertyDescriptor property) { |
| if (property == EXTRA_DIMENSIONS2_PROPERTY) { |
| return extraDimensions(); |
| } |
| // allow default implementation to flag the error |
| return super.internalGetChildListProperty(property); |
| } |
| |
| @Override |
| final int getNodeType0() { |
| return VARIABLE_DECLARATION_FRAGMENT; |
| } |
| |
| @Override |
| ASTNode clone0(AST target) { |
| VariableDeclarationFragment result = new VariableDeclarationFragment(target); |
| result.setSourceRange(getStartPosition(), getLength()); |
| result.setName((SimpleName) getName().clone(target)); |
| if (this.ast.apiLevel >= AST.JLS8_INTERNAL) { |
| result.extraDimensions().addAll( |
| ASTNode.copySubtrees(target, extraDimensions())); |
| } else { |
| result.internalSetExtraDimensions(getExtraDimensions()); |
| } |
| result.setInitializer( |
| (Expression) ASTNode.copySubtree(target, getInitializer())); |
| return result; |
| } |
| |
| @Override |
| final boolean subtreeMatch0(ASTMatcher matcher, Object other) { |
| // dispatch to correct overloaded match method |
| return matcher.match(this, other); |
| } |
| |
| @Override |
| void accept0(ASTVisitor visitor) { |
| boolean visitChildren = visitor.visit(this); |
| if (visitChildren) { |
| // visit children in normal left to right reading order |
| acceptChild(visitor, getName()); |
| if (this.ast.apiLevel >= AST.JLS8_INTERNAL) { |
| acceptChildren(visitor, this.extraDimensions); |
| } |
| acceptChild(visitor, getInitializer()); |
| } |
| visitor.endVisit(this); |
| } |
| |
| @Override |
| int memSize() { |
| // treat Operator as free |
| return BASE_NODE_SIZE + 4 * 4; |
| } |
| |
| @Override |
| int treeSize() { |
| return |
| memSize() |
| + (this.variableName == null ? 0 : getName().treeSize()) |
| + (this.extraDimensions == null ? 0 : this.extraDimensions.listSize()) |
| + (this.optionalInitializer == null ? 0 : getInitializer().treeSize()); |
| } |
| } |