| 1 | /******************************************************************************* |
|---|---|
| 2 | * Copyright (c) 2013, 2014 IBM Corporation and others. |
| 3 | * |
| 4 | * This program and the accompanying materials |
| 5 | * are made available under the terms of the Eclipse Public License 2.0 |
| 6 | * which accompanies this distribution, and is available at |
| 7 | * https://www.eclipse.org/legal/epl-2.0/ |
| 8 | * |
| 9 | * SPDX-License-Identifier: EPL-2.0 |
| 10 | * |
| 11 | * Contributors: |
| 12 | * IBM Corporation - initial API and implementation |
| 13 | *******************************************************************************/ |
| 14 | package org.eclipse.jdt.core.dom; |
| 15 | |
| 16 | import java.util.ArrayList; |
| 17 | import java.util.List; |
| 18 | |
| 19 | /** |
| 20 | * Creation reference expression AST node type (added in JLS8 API). |
| 21 | * |
| 22 | * <pre> |
| 23 | * CreationReference: |
| 24 | * Type <b>::</b> |
| 25 | * [ <b><</b> Type { <b>,</b> Type } <b>></b> ] |
| 26 | * <b>new</b> |
| 27 | * </pre> |
| 28 | * |
| 29 | * @since 3.10 |
| 30 | * @noinstantiate This class is not intended to be instantiated by clients. |
| 31 | */ |
| 32 | @SuppressWarnings({"rawtypes", "unchecked"}) |
| 33 | public class CreationReference extends MethodReference { |
| 34 | |
| 35 | /** |
| 36 | * The "type" structural property of this node type (child type: {@link Type}). |
| 37 | */ |
| 38 | public static final ChildPropertyDescriptor TYPE_PROPERTY = |
| 39 | new ChildPropertyDescriptor(CreationReference.class, "type", Type.class, MANDATORY, NO_CYCLE_RISK); //$NON-NLS-1$ |
| 40 | |
| 41 | /** |
| 42 | * The "typeArguments" structural property of this node type (element type: {@link Type}). |
| 43 | */ |
| 44 | public static final ChildListPropertyDescriptor TYPE_ARGUMENTS_PROPERTY = |
| 45 | internalTypeArgumentsFactory(CreationReference.class); |
| 46 | |
| 47 | /** |
| 48 | * A list of property descriptors (element type: |
| 49 | * {@link StructuralPropertyDescriptor}), |
| 50 | * or null if uninitialized. |
| 51 | */ |
| 52 | private static final List PROPERTY_DESCRIPTORS_8_0; |
| 53 | |
| 54 | static { |
| 55 | List propertyList = new ArrayList(3); |
| 56 | createPropertyList(CreationReference.class, propertyList); |
| 57 | addProperty(TYPE_PROPERTY, propertyList); |
| 58 | addProperty(TYPE_ARGUMENTS_PROPERTY, propertyList); |
| 59 | PROPERTY_DESCRIPTORS_8_0 = reapPropertyList(propertyList); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Returns a list of structural property descriptors for this node type. |
| 64 | * Clients must not modify the result. |
| 65 | * |
| 66 | * @param apiLevel the API level; one of the AST.JLS* constants |
| 67 | * @return a list of property descriptors (element type: |
| 68 | * {@link StructuralPropertyDescriptor}) |
| 69 | */ |
| 70 | public static List propertyDescriptors(int apiLevel) { |
| 71 | return PROPERTY_DESCRIPTORS_8_0; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * The type; lazily initialized; defaults to an unspecified type. |
| 76 | */ |
| 77 | private Type type = null; |
| 78 | |
| 79 | /** |
| 80 | * Creates a new AST node for an CreationReference declaration owned |
| 81 | * by the given AST. |
| 82 | * <p> |
| 83 | * N.B. This constructor is package-private; all subclasses must be |
| 84 | * declared in the same package; clients are unable to declare |
| 85 | * additional subclasses. |
| 86 | * </p> |
| 87 | * |
| 88 | * @param ast the AST that is to own this node |
| 89 | */ |
| 90 | CreationReference(AST ast) { |
| 91 | super(ast); |
| 92 | unsupportedIn2_3_4(); |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | final ChildListPropertyDescriptor internalTypeArgumentsProperty() { |
| 97 | return TYPE_ARGUMENTS_PROPERTY; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | final List internalStructuralPropertiesForType(int apiLevel) { |
| 102 | return propertyDescriptors(apiLevel); |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) { |
| 107 | if (property == TYPE_PROPERTY) { |
| 108 | if (get) { |
| 109 | return getType(); |
| 110 | } else { |
| 111 | setType((Type) child); |
| 112 | return null; |
| 113 | } |
| 114 | } |
| 115 | // allow default implementation to flag the error |
| 116 | return super.internalGetSetChildProperty(property, get, child); |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | final List internalGetChildListProperty(ChildListPropertyDescriptor property) { |
| 121 | if (property == TYPE_ARGUMENTS_PROPERTY) { |
| 122 | return typeArguments(); |
| 123 | } |
| 124 | // allow default implementation to flag the error |
| 125 | return super.internalGetChildListProperty(property); |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | final int getNodeType0() { |
| 130 | return CREATION_REFERENCE; |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | ASTNode clone0(AST target) { |
| 135 | CreationReference result = new CreationReference(target); |
| 136 | result.setSourceRange(getStartPosition(), getLength()); |
| 137 | result.setType((Type) ASTNode.copySubtree(target, getType())); |
| 138 | result.typeArguments().addAll(ASTNode.copySubtrees(target, typeArguments())); |
| 139 | return result; |
| 140 | } |
| 141 | |
| 142 | @Override |
| 143 | final boolean subtreeMatch0(ASTMatcher matcher, Object other) { |
| 144 | // dispatch to correct overloaded match method |
| 145 | return matcher.match(this, other); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | void accept0(ASTVisitor visitor) { |
| 150 | boolean visitChildren = visitor.visit(this); |
| 151 | if (visitChildren) { |
| 152 | // visit children in normal left to right reading order |
| 153 | acceptChild(visitor, getType()); |
| 154 | acceptChildren(visitor, this.typeArguments); |
| 155 | } |
| 156 | visitor.endVisit(this); |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Returns the type of this creation reference expression. |
| 161 | * |
| 162 | * @return the type node |
| 163 | */ |
| 164 | public Type getType() { |
| 165 | if (this.type == null) { |
| 166 | // lazy init must be thread-safe for readers |
| 167 | synchronized (this) { |
| 168 | if (this.type == null) { |
| 169 | preLazyInit(); |
| 170 | this.type = new SimpleType(this.ast); |
| 171 | postLazyInit(this.type, TYPE_PROPERTY); |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | return this.type; |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Sets the type of this creation reference expression. |
| 180 | * |
| 181 | * @param type the new type node |
| 182 | * @exception IllegalArgumentException if: |
| 183 | * <ul> |
| 184 | * <li>the node belongs to a different AST</li> |
| 185 | * <li>the node already has a parent</li> |
| 186 | * </ul> |
| 187 | */ |
| 188 | public void setType(Type type) { |
| 189 | if (type == null) { |
| 190 | throw new IllegalArgumentException(); |
| 191 | } |
| 192 | ASTNode oldChild = this.type; |
| 193 | preReplaceChild(oldChild, type, TYPE_PROPERTY); |
| 194 | this.type = type; |
| 195 | postReplaceChild(oldChild, type, TYPE_PROPERTY); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Returns the live ordered list of type arguments of this creation reference expression. |
| 200 | * |
| 201 | * @return the live list of type arguments |
| 202 | * (element type: {@link Type}) |
| 203 | */ |
| 204 | @Override |
| 205 | public List typeArguments() { |
| 206 | return this.typeArguments; |
| 207 | } |
| 208 | |
| 209 | @Override |
| 210 | int memSize() { |
| 211 | // treat Code as free |
| 212 | return BASE_NODE_SIZE + 2 * 4; |
| 213 | } |
| 214 | |
| 215 | @Override |
| 216 | int treeSize() { |
| 217 | return |
| 218 | memSize() |
| 219 | + (this.type == null ? 0 : getType().treeSize()) |
| 220 | + (this.typeArguments == null ? 0 : this.typeArguments.listSize()); |
| 221 | } |
| 222 | } |
| 223 |
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