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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java @ 19975:cd59085cf0d8

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Truffle: remove Node#onAdopt() hook
author Andreas Woess <andreas.woess@oracle.com>
date Fri, 20 Mar 2015 17:08:43 +0100
parents 1d6a7ea5de59
children f792b4270cb1
comparison
equal deleted inserted replaced
19974:a0971187a38a 19975:cd59085cf0d8
174 private void adoptHelper(final Node newChild) { 174 private void adoptHelper(final Node newChild) {
175 assert newChild != null; 175 assert newChild != null;
176 if (newChild == this) { 176 if (newChild == this) {
177 throw new IllegalStateException("The parent of a node can never be the node itself."); 177 throw new IllegalStateException("The parent of a node can never be the node itself.");
178 } 178 }
179 boolean isInserted = newChild.parent == null;
180 newChild.parent = this; 179 newChild.parent = this;
181 if (TruffleOptions.TraceASTJSON) { 180 if (TruffleOptions.TraceASTJSON) {
182 JSONHelper.dumpNewChild(this, newChild); 181 JSONHelper.dumpNewChild(this, newChild);
183 } 182 }
184 newChild.adoptHelper(); 183 newChild.adoptHelper();
185 if (isInserted) {
186 newChild.onAdopt();
187 }
188 } 184 }
189 185
190 private void adoptHelper() { 186 private void adoptHelper() {
191 Iterable<Node> children = this.getChildren(); 187 Iterable<Node> children = this.getChildren();
192 for (Node child : children) { 188 for (Node child : children) {
199 private void adoptUnadoptedHelper(final Node newChild) { 195 private void adoptUnadoptedHelper(final Node newChild) {
200 assert newChild != null; 196 assert newChild != null;
201 if (newChild == this) { 197 if (newChild == this) {
202 throw new IllegalStateException("The parent of a node can never be the node itself."); 198 throw new IllegalStateException("The parent of a node can never be the node itself.");
203 } 199 }
204 boolean isInserted = newChild.parent == null;
205 newChild.parent = this; 200 newChild.parent = this;
206 newChild.adoptUnadoptedHelper(); 201 newChild.adoptUnadoptedHelper();
207 if (isInserted) {
208 newChild.onAdopt();
209 }
210 } 202 }
211 203
212 private void adoptUnadoptedHelper() { 204 private void adoptUnadoptedHelper() {
213 Iterable<Node> children = this.getChildren(); 205 Iterable<Node> children = this.getChildren();
214 for (Node child : children) { 206 for (Node child : children) {
327 protected void onReplace(Node newNode, CharSequence reason) { 319 protected void onReplace(Node newNode, CharSequence reason) {
328 // empty default 320 // empty default
329 } 321 }
330 322
331 /** 323 /**
332 * Subclasses of {@link Node} can implement this method to execute extra functionality when a
333 * node is effectively inserted into the AST. The {@code onAdopt} callback is called after the
334 * node has been effectively inserted, and it is guaranteed to be called only once for any given
335 * node.
336 */
337 protected void onAdopt() {
338 // empty default
339 }
340
341 /**
342 * Invokes the {@link NodeVisitor#visit(Node)} method for this node and recursively also for all 324 * Invokes the {@link NodeVisitor#visit(Node)} method for this node and recursively also for all
343 * child nodes. 325 * child nodes.
344 * 326 *
345 * @param nodeVisitor the visitor 327 * @param nodeVisitor the visitor
346 */ 328 */