219 }
220 }
221
222 return getProto().invokeNoSuchProperty(name, programPoint);
223 }
224
225 @Override
226 public void setSplitState(final int state) {
227 getNonWithParent().setSplitState(state);
228 }
229
230 @Override
231 public int getSplitState() {
232 return getNonWithParent().getSplitState();
233 }
234
235 /**
236 * Get first parent scope that is not an instance of WithObject.
237 */
238 private Scope getNonWithParent() {
239 ScriptObject proto = getParentScope();
240
241 while (proto != null && proto instanceof WithObject) {
242 proto = ((WithObject)proto).getParentScope();
243 }
244
245 assert proto instanceof Scope : "with scope without parent scope";
246 return (Scope) proto;
247 }
248
249
250 private static GuardedInvocation fixReceiverType(final GuardedInvocation link, final MethodHandle filter) {
251 // The receiver may be an Object or a ScriptObject.
252 final MethodType invType = link.getInvocation().type();
253 final MethodType newInvType = invType.changeParameterType(0, filter.type().returnType());
254 return link.asType(newInvType);
255 }
256
257 private static GuardedInvocation fixExpressionCallSite(final NashornCallSiteDescriptor desc, final GuardedInvocation link) {
258 // If it's not a getMethod, just add an expression filter that converts WithObject in "this" position to its
259 // expression.
260 if (!"getMethod".equals(desc.getFirstOperator())) {
261 return fixReceiverType(link, WITHEXPRESSIONFILTER).filterArguments(0, WITHEXPRESSIONFILTER);
262 }
361 @SuppressWarnings("unused")
362 private static boolean withExpressionGuard(final Object receiver, final PropertyMap map, final SwitchPoint sp) {
363 return ((WithObject)receiver).expression.getMap() == map && (sp == null || !sp.hasBeenInvalidated());
364 }
365
366 /**
367 * Drops the WithObject wrapper from the scope.
368 * @param receiver WithObject wrapper.
369 * @return The with scope.
370 */
371 public static Object withFilterScope(final Object receiver) {
372 return ((WithObject)receiver).getProto();
373 }
374
375 /**
376 * Get the with expression for this {@code WithObject}
377 * @return the with expression
378 */
379 public ScriptObject getExpression() {
380 return expression;
381 }
382
383 /**
384 * Get the parent scope for this {@code WithObject}
385 * @return the parent scope
386 */
387 public ScriptObject getParentScope() {
388 return getProto();
389 }
390
391 private static MethodHandle findOwnMH(final String name, final Class<?> rtype, final Class<?>... types) {
392 return MH.findStatic(MethodHandles.lookup(), WithObject.class, name, MH.type(rtype, types));
393 }
394 }
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219 }
220 }
221
222 return getProto().invokeNoSuchProperty(name, programPoint);
223 }
224
225 @Override
226 public void setSplitState(final int state) {
227 getNonWithParent().setSplitState(state);
228 }
229
230 @Override
231 public int getSplitState() {
232 return getNonWithParent().getSplitState();
233 }
234
235 /**
236 * Get first parent scope that is not an instance of WithObject.
237 */
238 private Scope getNonWithParent() {
239 ScriptObject proto = getProto();
240
241 while (proto != null && proto instanceof WithObject) {
242 proto = proto.getProto();
243 }
244
245 assert proto instanceof Scope : "with scope without parent scope";
246 return (Scope) proto;
247 }
248
249
250 private static GuardedInvocation fixReceiverType(final GuardedInvocation link, final MethodHandle filter) {
251 // The receiver may be an Object or a ScriptObject.
252 final MethodType invType = link.getInvocation().type();
253 final MethodType newInvType = invType.changeParameterType(0, filter.type().returnType());
254 return link.asType(newInvType);
255 }
256
257 private static GuardedInvocation fixExpressionCallSite(final NashornCallSiteDescriptor desc, final GuardedInvocation link) {
258 // If it's not a getMethod, just add an expression filter that converts WithObject in "this" position to its
259 // expression.
260 if (!"getMethod".equals(desc.getFirstOperator())) {
261 return fixReceiverType(link, WITHEXPRESSIONFILTER).filterArguments(0, WITHEXPRESSIONFILTER);
262 }
361 @SuppressWarnings("unused")
362 private static boolean withExpressionGuard(final Object receiver, final PropertyMap map, final SwitchPoint sp) {
363 return ((WithObject)receiver).expression.getMap() == map && (sp == null || !sp.hasBeenInvalidated());
364 }
365
366 /**
367 * Drops the WithObject wrapper from the scope.
368 * @param receiver WithObject wrapper.
369 * @return The with scope.
370 */
371 public static Object withFilterScope(final Object receiver) {
372 return ((WithObject)receiver).getProto();
373 }
374
375 /**
376 * Get the with expression for this {@code WithObject}
377 * @return the with expression
378 */
379 public ScriptObject getExpression() {
380 return expression;
381 }
382
383 private static MethodHandle findOwnMH(final String name, final Class<?> rtype, final Class<?>... types) {
384 return MH.findStatic(MethodHandles.lookup(), WithObject.class, name, MH.type(rtype, types));
385 }
386 }
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