Wed, 23 Oct 2013 17:30:13 +0530
8027128: jdk.nashorn.api.scripting.JSObject should be an interface
Reviewed-by: hannesw, attila, jlaskey
jlaskey@3 | 1 | /* |
jlaskey@7 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
jlaskey@3 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jlaskey@3 | 4 | * |
jlaskey@3 | 5 | * This code is free software; you can redistribute it and/or modify it |
jlaskey@3 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jlaskey@3 | 7 | * published by the Free Software Foundation. Oracle designates this |
jlaskey@3 | 8 | * particular file as subject to the "Classpath" exception as provided |
jlaskey@3 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
jlaskey@3 | 10 | * |
jlaskey@3 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jlaskey@3 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jlaskey@3 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jlaskey@3 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
jlaskey@3 | 15 | * accompanied this code). |
jlaskey@3 | 16 | * |
jlaskey@3 | 17 | * You should have received a copy of the GNU General Public License version |
jlaskey@3 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
jlaskey@3 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jlaskey@3 | 20 | * |
jlaskey@3 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
jlaskey@3 | 22 | * or visit www.oracle.com if you need additional information or have any |
jlaskey@3 | 23 | * questions. |
jlaskey@3 | 24 | */ |
jlaskey@3 | 25 | |
jlaskey@3 | 26 | package jdk.nashorn.api.scripting; |
jlaskey@3 | 27 | |
sundar@492 | 28 | import java.security.AccessControlContext; |
sundar@41 | 29 | import java.security.AccessController; |
sundar@492 | 30 | import java.security.Permissions; |
sundar@41 | 31 | import java.security.PrivilegedAction; |
sundar@492 | 32 | import java.security.ProtectionDomain; |
jlaskey@3 | 33 | import java.util.AbstractMap; |
jlaskey@3 | 34 | import java.util.ArrayList; |
jlaskey@3 | 35 | import java.util.Collection; |
jlaskey@3 | 36 | import java.util.Collections; |
sundar@492 | 37 | import java.util.Iterator; |
sundar@321 | 38 | import java.util.LinkedHashSet; |
jlaskey@3 | 39 | import java.util.List; |
jlaskey@3 | 40 | import java.util.Map; |
jlaskey@3 | 41 | import java.util.Set; |
jlaskey@3 | 42 | import java.util.concurrent.Callable; |
sundar@38 | 43 | import javax.script.Bindings; |
jlaskey@3 | 44 | import jdk.nashorn.internal.runtime.Context; |
sundar@541 | 45 | import jdk.nashorn.internal.runtime.GlobalObject; |
attila@644 | 46 | import jdk.nashorn.internal.runtime.JSType; |
jlaskey@3 | 47 | import jdk.nashorn.internal.runtime.ScriptFunction; |
jlaskey@3 | 48 | import jdk.nashorn.internal.runtime.ScriptObject; |
sundar@33 | 49 | import jdk.nashorn.internal.runtime.ScriptRuntime; |
jlaskey@3 | 50 | |
jlaskey@3 | 51 | /** |
sundar@546 | 52 | * Mirror object that wraps a given Nashorn Script object. |
jlaskey@3 | 53 | */ |
sundar@648 | 54 | public final class ScriptObjectMirror extends AbstractJSObject implements Bindings { |
sundar@492 | 55 | private static AccessControlContext getContextAccCtxt() { |
sundar@492 | 56 | final Permissions perms = new Permissions(); |
sundar@492 | 57 | perms.add(new RuntimePermission(Context.NASHORN_GET_CONTEXT)); |
sundar@492 | 58 | return new AccessControlContext(new ProtectionDomain[] { new ProtectionDomain(null, perms) }); |
sundar@492 | 59 | } |
sundar@492 | 60 | |
sundar@492 | 61 | private static final AccessControlContext GET_CONTEXT_ACC_CTXT = getContextAccCtxt(); |
sundar@492 | 62 | |
jlaskey@3 | 63 | private final ScriptObject sobj; |
jlaskey@3 | 64 | private final ScriptObject global; |
sundar@541 | 65 | private final boolean strict; |
jlaskey@3 | 66 | |
jlaskey@3 | 67 | @Override |
jlaskey@3 | 68 | public boolean equals(final Object other) { |
jlaskey@3 | 69 | if (other instanceof ScriptObjectMirror) { |
jlaskey@3 | 70 | return sobj.equals(((ScriptObjectMirror)other).sobj); |
jlaskey@3 | 71 | } |
jlaskey@3 | 72 | |
jlaskey@3 | 73 | return false; |
jlaskey@3 | 74 | } |
jlaskey@3 | 75 | |
jlaskey@3 | 76 | @Override |
jlaskey@3 | 77 | public int hashCode() { |
jlaskey@3 | 78 | return sobj.hashCode(); |
jlaskey@3 | 79 | } |
jlaskey@3 | 80 | |
sundar@33 | 81 | @Override |
sundar@33 | 82 | public String toString() { |
sundar@33 | 83 | return inGlobal(new Callable<String>() { |
sundar@33 | 84 | @Override |
sundar@33 | 85 | public String call() { |
sundar@33 | 86 | return ScriptRuntime.safeToString(sobj); |
sundar@33 | 87 | } |
sundar@33 | 88 | }); |
sundar@33 | 89 | } |
sundar@33 | 90 | |
jlaskey@3 | 91 | // JSObject methods |
sundar@546 | 92 | |
jlaskey@3 | 93 | @Override |
sundar@546 | 94 | public Object call(final Object thiz, final Object... args) { |
sundar@456 | 95 | final ScriptObject oldGlobal = Context.getGlobal(); |
jlaskey@3 | 96 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 97 | |
sundar@88 | 98 | try { |
sundar@88 | 99 | if (globalChanged) { |
sundar@456 | 100 | Context.setGlobal(global); |
jlaskey@3 | 101 | } |
jlaskey@3 | 102 | |
sundar@546 | 103 | if (sobj instanceof ScriptFunction) { |
sundar@514 | 104 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 105 | final Object self = globalChanged? wrap(thiz, oldGlobal) : thiz; |
sundar@546 | 106 | return wrap(ScriptRuntime.apply((ScriptFunction)sobj, unwrap(self, global), unwrapArray(modArgs, global)), global); |
jlaskey@3 | 107 | } |
jlaskey@3 | 108 | |
sundar@546 | 109 | throw new RuntimeException("not a function: " + toString()); |
sundar@88 | 110 | } catch (final RuntimeException | Error e) { |
sundar@88 | 111 | throw e; |
sundar@88 | 112 | } catch (final Throwable t) { |
sundar@88 | 113 | throw new RuntimeException(t); |
sundar@88 | 114 | } finally { |
sundar@88 | 115 | if (globalChanged) { |
sundar@456 | 116 | Context.setGlobal(oldGlobal); |
sundar@88 | 117 | } |
sundar@88 | 118 | } |
jlaskey@3 | 119 | } |
jlaskey@3 | 120 | |
jlaskey@3 | 121 | @Override |
sundar@546 | 122 | public Object newObject(final Object... args) { |
sundar@456 | 123 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@376 | 124 | final boolean globalChanged = (oldGlobal != global); |
sundar@376 | 125 | |
sundar@376 | 126 | try { |
sundar@376 | 127 | if (globalChanged) { |
sundar@456 | 128 | Context.setGlobal(global); |
sundar@376 | 129 | } |
sundar@376 | 130 | |
sundar@546 | 131 | if (sobj instanceof ScriptFunction) { |
sundar@514 | 132 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 133 | return wrap(ScriptRuntime.construct((ScriptFunction)sobj, unwrapArray(modArgs, global)), global); |
sundar@376 | 134 | } |
sundar@376 | 135 | |
sundar@546 | 136 | throw new RuntimeException("not a constructor: " + toString()); |
sundar@376 | 137 | } catch (final RuntimeException | Error e) { |
sundar@376 | 138 | throw e; |
sundar@376 | 139 | } catch (final Throwable t) { |
sundar@376 | 140 | throw new RuntimeException(t); |
sundar@376 | 141 | } finally { |
sundar@376 | 142 | if (globalChanged) { |
sundar@456 | 143 | Context.setGlobal(oldGlobal); |
sundar@376 | 144 | } |
sundar@376 | 145 | } |
sundar@376 | 146 | } |
sundar@376 | 147 | |
sundar@376 | 148 | @Override |
jlaskey@3 | 149 | public Object eval(final String s) { |
jlaskey@3 | 150 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 151 | @Override |
jlaskey@3 | 152 | public Object call() { |
sundar@41 | 153 | final Context context = AccessController.doPrivileged( |
sundar@41 | 154 | new PrivilegedAction<Context>() { |
sundar@41 | 155 | @Override |
sundar@41 | 156 | public Context run() { |
sundar@41 | 157 | return Context.getContext(); |
sundar@41 | 158 | } |
sundar@492 | 159 | }, GET_CONTEXT_ACC_CTXT); |
sundar@41 | 160 | return wrap(context.eval(global, s, null, null, false), global); |
jlaskey@3 | 161 | } |
jlaskey@3 | 162 | }); |
jlaskey@3 | 163 | } |
jlaskey@3 | 164 | |
sundar@546 | 165 | public Object callMember(final String functionName, final Object... args) { |
sundar@546 | 166 | functionName.getClass(); // null check |
sundar@546 | 167 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@546 | 168 | final boolean globalChanged = (oldGlobal != global); |
sundar@546 | 169 | |
sundar@546 | 170 | try { |
sundar@546 | 171 | if (globalChanged) { |
sundar@546 | 172 | Context.setGlobal(global); |
sundar@546 | 173 | } |
sundar@546 | 174 | |
sundar@546 | 175 | final Object val = sobj.get(functionName); |
sundar@546 | 176 | if (val instanceof ScriptFunction) { |
sundar@546 | 177 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 178 | return wrap(ScriptRuntime.apply((ScriptFunction)val, sobj, unwrapArray(modArgs, global)), global); |
sundar@546 | 179 | } else if (val instanceof JSObject && ((JSObject)val).isFunction()) { |
sundar@546 | 180 | return ((JSObject)val).call(sobj, args); |
sundar@546 | 181 | } |
sundar@546 | 182 | |
sundar@546 | 183 | throw new NoSuchMethodException("No such function " + functionName); |
sundar@546 | 184 | } catch (final RuntimeException | Error e) { |
sundar@546 | 185 | throw e; |
sundar@546 | 186 | } catch (final Throwable t) { |
sundar@546 | 187 | throw new RuntimeException(t); |
sundar@546 | 188 | } finally { |
sundar@546 | 189 | if (globalChanged) { |
sundar@546 | 190 | Context.setGlobal(oldGlobal); |
sundar@546 | 191 | } |
sundar@546 | 192 | } |
sundar@546 | 193 | } |
sundar@546 | 194 | |
sundar@546 | 195 | @Override |
jlaskey@3 | 196 | public Object getMember(final String name) { |
sundar@546 | 197 | name.getClass(); |
sundar@38 | 198 | return inGlobal(new Callable<Object>() { |
sundar@38 | 199 | @Override public Object call() { |
sundar@38 | 200 | return wrap(sobj.get(name), global); |
sundar@38 | 201 | } |
sundar@38 | 202 | }); |
jlaskey@3 | 203 | } |
jlaskey@3 | 204 | |
jlaskey@3 | 205 | @Override |
jlaskey@3 | 206 | public Object getSlot(final int index) { |
sundar@38 | 207 | return inGlobal(new Callable<Object>() { |
sundar@38 | 208 | @Override public Object call() { |
sundar@38 | 209 | return wrap(sobj.get(index), global); |
sundar@38 | 210 | } |
sundar@38 | 211 | }); |
jlaskey@3 | 212 | } |
jlaskey@3 | 213 | |
jlaskey@3 | 214 | @Override |
sundar@546 | 215 | public boolean hasMember(final String name) { |
sundar@546 | 216 | name.getClass(); |
sundar@546 | 217 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 218 | @Override public Boolean call() { |
sundar@546 | 219 | return sobj.has(name); |
sundar@546 | 220 | } |
sundar@546 | 221 | }); |
sundar@546 | 222 | } |
sundar@546 | 223 | |
sundar@546 | 224 | @Override |
sundar@546 | 225 | public boolean hasSlot(final int slot) { |
sundar@546 | 226 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 227 | @Override public Boolean call() { |
sundar@546 | 228 | return sobj.has(slot); |
sundar@546 | 229 | } |
sundar@546 | 230 | }); |
sundar@546 | 231 | } |
sundar@546 | 232 | |
sundar@546 | 233 | @Override |
jlaskey@3 | 234 | public void removeMember(final String name) { |
sundar@546 | 235 | name.getClass(); |
jlaskey@3 | 236 | remove(name); |
jlaskey@3 | 237 | } |
jlaskey@3 | 238 | |
jlaskey@3 | 239 | @Override |
jlaskey@3 | 240 | public void setMember(final String name, final Object value) { |
sundar@546 | 241 | name.getClass(); |
sundar@88 | 242 | put(name, value); |
jlaskey@3 | 243 | } |
jlaskey@3 | 244 | |
jlaskey@3 | 245 | @Override |
jlaskey@3 | 246 | public void setSlot(final int index, final Object value) { |
sundar@38 | 247 | inGlobal(new Callable<Void>() { |
sundar@38 | 248 | @Override public Void call() { |
sundar@541 | 249 | sobj.set(index, unwrap(value, global), strict); |
sundar@38 | 250 | return null; |
sundar@38 | 251 | } |
sundar@38 | 252 | }); |
jlaskey@3 | 253 | } |
jlaskey@3 | 254 | |
sundar@546 | 255 | @Override |
sundar@546 | 256 | public boolean isInstance(final Object obj) { |
sundar@546 | 257 | if (! (obj instanceof ScriptObjectMirror)) { |
sundar@546 | 258 | return false; |
sundar@546 | 259 | } |
sundar@546 | 260 | |
sundar@546 | 261 | final ScriptObjectMirror instance = (ScriptObjectMirror)obj; |
sundar@546 | 262 | // if not belongs to my global scope, return false |
sundar@546 | 263 | if (global != instance.global) { |
sundar@546 | 264 | return false; |
sundar@546 | 265 | } |
sundar@546 | 266 | |
sundar@546 | 267 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 268 | @Override public Boolean call() { |
sundar@546 | 269 | return sobj.isInstance(instance.sobj); |
sundar@546 | 270 | } |
sundar@546 | 271 | }); |
sundar@546 | 272 | } |
sundar@546 | 273 | |
sundar@546 | 274 | @Override |
sundar@546 | 275 | public String getClassName() { |
sundar@546 | 276 | return sobj.getClassName(); |
sundar@546 | 277 | } |
sundar@546 | 278 | |
sundar@546 | 279 | @Override |
sundar@546 | 280 | public boolean isFunction() { |
sundar@546 | 281 | return sobj instanceof ScriptFunction; |
sundar@546 | 282 | } |
sundar@546 | 283 | |
sundar@546 | 284 | @Override |
sundar@546 | 285 | public boolean isStrictFunction() { |
sundar@546 | 286 | return isFunction() && ((ScriptFunction)sobj).isStrict(); |
sundar@546 | 287 | } |
sundar@546 | 288 | |
sundar@546 | 289 | @Override |
sundar@546 | 290 | public boolean isArray() { |
sundar@546 | 291 | return sobj.isArray(); |
sundar@546 | 292 | } |
sundar@546 | 293 | |
sundar@437 | 294 | // javax.script.Bindings methods |
sundar@437 | 295 | |
jlaskey@3 | 296 | @Override |
jlaskey@3 | 297 | public void clear() { |
jlaskey@3 | 298 | inGlobal(new Callable<Object>() { |
jlaskey@3 | 299 | @Override public Object call() { |
sundar@541 | 300 | sobj.clear(strict); |
jlaskey@3 | 301 | return null; |
sundar@38 | 302 | } |
sundar@38 | 303 | }); |
jlaskey@3 | 304 | } |
jlaskey@3 | 305 | |
jlaskey@3 | 306 | @Override |
jlaskey@3 | 307 | public boolean containsKey(final Object key) { |
jlaskey@3 | 308 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 309 | @Override public Boolean call() { |
jlaskey@3 | 310 | return sobj.containsKey(unwrap(key, global)); |
sundar@38 | 311 | } |
sundar@38 | 312 | }); |
jlaskey@3 | 313 | } |
jlaskey@3 | 314 | |
jlaskey@3 | 315 | @Override |
jlaskey@3 | 316 | public boolean containsValue(final Object value) { |
jlaskey@3 | 317 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 318 | @Override public Boolean call() { |
jlaskey@3 | 319 | return sobj.containsValue(unwrap(value, global)); |
sundar@38 | 320 | } |
sundar@38 | 321 | }); |
jlaskey@3 | 322 | } |
jlaskey@3 | 323 | |
jlaskey@3 | 324 | @Override |
sundar@38 | 325 | public Set<Map.Entry<String, Object>> entrySet() { |
sundar@38 | 326 | return inGlobal(new Callable<Set<Map.Entry<String, Object>>>() { |
sundar@38 | 327 | @Override public Set<Map.Entry<String, Object>> call() { |
jlaskey@3 | 328 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 329 | final Set<Map.Entry<String, Object>> entries = new LinkedHashSet<>(); |
jlaskey@3 | 330 | |
jlaskey@3 | 331 | while (iter.hasNext()) { |
sundar@38 | 332 | final String key = iter.next(); |
sundar@38 | 333 | final Object value = translateUndefined(wrap(sobj.get(key), global)); |
jlaskey@3 | 334 | entries.add(new AbstractMap.SimpleImmutableEntry<>(key, value)); |
jlaskey@3 | 335 | } |
jlaskey@3 | 336 | |
jlaskey@3 | 337 | return Collections.unmodifiableSet(entries); |
jlaskey@3 | 338 | } |
jlaskey@3 | 339 | }); |
jlaskey@3 | 340 | } |
jlaskey@3 | 341 | |
jlaskey@3 | 342 | @Override |
jlaskey@3 | 343 | public Object get(final Object key) { |
sundar@38 | 344 | return inGlobal(new Callable<Object>() { |
sundar@38 | 345 | @Override public Object call() { |
sundar@38 | 346 | return translateUndefined(wrap(sobj.get(key), global)); |
sundar@38 | 347 | } |
sundar@38 | 348 | }); |
jlaskey@3 | 349 | } |
jlaskey@3 | 350 | |
jlaskey@3 | 351 | @Override |
jlaskey@3 | 352 | public boolean isEmpty() { |
sundar@38 | 353 | return inGlobal(new Callable<Boolean>() { |
sundar@38 | 354 | @Override public Boolean call() { |
sundar@38 | 355 | return sobj.isEmpty(); |
sundar@38 | 356 | } |
sundar@38 | 357 | }); |
jlaskey@3 | 358 | } |
jlaskey@3 | 359 | |
jlaskey@3 | 360 | @Override |
sundar@38 | 361 | public Set<String> keySet() { |
sundar@38 | 362 | return inGlobal(new Callable<Set<String>>() { |
sundar@38 | 363 | @Override public Set<String> call() { |
sundar@38 | 364 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 365 | final Set<String> keySet = new LinkedHashSet<>(); |
jlaskey@3 | 366 | |
sundar@38 | 367 | while (iter.hasNext()) { |
sundar@38 | 368 | keySet.add(iter.next()); |
sundar@38 | 369 | } |
sundar@38 | 370 | |
sundar@38 | 371 | return Collections.unmodifiableSet(keySet); |
jlaskey@3 | 372 | } |
sundar@38 | 373 | }); |
jlaskey@3 | 374 | } |
jlaskey@3 | 375 | |
jlaskey@3 | 376 | @Override |
sundar@38 | 377 | public Object put(final String key, final Object value) { |
sundar@456 | 378 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@88 | 379 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 380 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 381 | @Override public Object call() { |
sundar@88 | 382 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@541 | 383 | return translateUndefined(wrap(sobj.put(key, unwrap(modValue, global), strict), global)); |
sundar@38 | 384 | } |
sundar@38 | 385 | }); |
jlaskey@3 | 386 | } |
jlaskey@3 | 387 | |
jlaskey@3 | 388 | @Override |
sundar@38 | 389 | public void putAll(final Map<? extends String, ? extends Object> map) { |
sundar@456 | 390 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@88 | 391 | final boolean globalChanged = (oldGlobal != global); |
sundar@38 | 392 | inGlobal(new Callable<Object>() { |
sundar@38 | 393 | @Override public Object call() { |
sundar@38 | 394 | for (final Map.Entry<? extends String, ? extends Object> entry : map.entrySet()) { |
sundar@88 | 395 | final Object value = entry.getValue(); |
sundar@88 | 396 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@88 | 397 | sobj.set(entry.getKey(), unwrap(modValue, global), strict); |
sundar@38 | 398 | } |
sundar@38 | 399 | return null; |
jlaskey@3 | 400 | } |
sundar@38 | 401 | }); |
jlaskey@3 | 402 | } |
jlaskey@3 | 403 | |
jlaskey@3 | 404 | @Override |
jlaskey@3 | 405 | public Object remove(final Object key) { |
jlaskey@3 | 406 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 407 | @Override public Object call() { |
sundar@541 | 408 | return wrap(sobj.remove(unwrap(key, global), strict), global); |
jlaskey@3 | 409 | } |
jlaskey@3 | 410 | }); |
jlaskey@3 | 411 | } |
jlaskey@3 | 412 | |
sundar@321 | 413 | /** |
sundar@321 | 414 | * Delete a property from this object. |
sundar@321 | 415 | * |
sundar@321 | 416 | * @param key the property to be deleted |
sundar@321 | 417 | * |
sundar@321 | 418 | * @return if the delete was successful or not |
sundar@321 | 419 | */ |
sundar@321 | 420 | public boolean delete(final Object key) { |
sundar@321 | 421 | return inGlobal(new Callable<Boolean>() { |
sundar@321 | 422 | @Override public Boolean call() { |
sundar@541 | 423 | return sobj.delete(unwrap(key, global), strict); |
sundar@321 | 424 | } |
sundar@321 | 425 | }); |
sundar@321 | 426 | } |
sundar@321 | 427 | |
jlaskey@3 | 428 | @Override |
jlaskey@3 | 429 | public int size() { |
jlaskey@3 | 430 | return inGlobal(new Callable<Integer>() { |
jlaskey@3 | 431 | @Override public Integer call() { |
jlaskey@3 | 432 | return sobj.size(); |
jlaskey@3 | 433 | } |
jlaskey@3 | 434 | }); |
jlaskey@3 | 435 | } |
jlaskey@3 | 436 | |
jlaskey@3 | 437 | @Override |
jlaskey@3 | 438 | public Collection<Object> values() { |
sundar@38 | 439 | return inGlobal(new Callable<Collection<Object>>() { |
sundar@38 | 440 | @Override public Collection<Object> call() { |
sundar@38 | 441 | final List<Object> values = new ArrayList<>(size()); |
sundar@38 | 442 | final Iterator<Object> iter = sobj.valueIterator(); |
jlaskey@3 | 443 | |
sundar@38 | 444 | while (iter.hasNext()) { |
sundar@88 | 445 | values.add(translateUndefined(wrap(iter.next(), global))); |
sundar@38 | 446 | } |
sundar@38 | 447 | |
sundar@38 | 448 | return Collections.unmodifiableList(values); |
jlaskey@3 | 449 | } |
sundar@38 | 450 | }); |
sundar@38 | 451 | } |
jlaskey@3 | 452 | |
sundar@350 | 453 | // Support for ECMAScript Object API on mirrors |
sundar@350 | 454 | |
sundar@350 | 455 | /** |
sundar@350 | 456 | * Return the __proto__ of this object. |
sundar@350 | 457 | * @return __proto__ object. |
sundar@350 | 458 | */ |
sundar@350 | 459 | public Object getProto() { |
sundar@350 | 460 | return inGlobal(new Callable<Object>() { |
sundar@350 | 461 | @Override public Object call() { |
sundar@437 | 462 | return wrap(sobj.getProto(), global); |
sundar@350 | 463 | } |
sundar@350 | 464 | }); |
sundar@350 | 465 | } |
sundar@350 | 466 | |
sundar@350 | 467 | /** |
sundar@513 | 468 | * Set the __proto__ of this object. |
sundar@513 | 469 | * @param proto new proto for this object |
sundar@513 | 470 | */ |
sundar@513 | 471 | public void setProto(final Object proto) { |
sundar@513 | 472 | inGlobal(new Callable<Void>() { |
sundar@513 | 473 | @Override public Void call() { |
sundar@513 | 474 | sobj.setProtoCheck(unwrap(proto, global)); |
sundar@513 | 475 | return null; |
sundar@513 | 476 | } |
sundar@513 | 477 | }); |
sundar@513 | 478 | } |
sundar@513 | 479 | |
sundar@513 | 480 | /** |
sundar@350 | 481 | * ECMA 8.12.1 [[GetOwnProperty]] (P) |
sundar@350 | 482 | * |
sundar@350 | 483 | * @param key property key |
sundar@350 | 484 | * |
sundar@350 | 485 | * @return Returns the Property Descriptor of the named own property of this |
sundar@350 | 486 | * object, or undefined if absent. |
sundar@350 | 487 | */ |
sundar@350 | 488 | public Object getOwnPropertyDescriptor(final String key) { |
sundar@350 | 489 | return inGlobal(new Callable<Object>() { |
sundar@350 | 490 | @Override public Object call() { |
sundar@437 | 491 | return wrap(sobj.getOwnPropertyDescriptor(key), global); |
sundar@350 | 492 | } |
sundar@350 | 493 | }); |
sundar@350 | 494 | } |
sundar@350 | 495 | |
sundar@350 | 496 | /** |
sundar@350 | 497 | * return an array of own property keys associated with the object. |
sundar@350 | 498 | * |
sundar@350 | 499 | * @param all True if to include non-enumerable keys. |
sundar@350 | 500 | * @return Array of keys. |
sundar@350 | 501 | */ |
sundar@350 | 502 | public String[] getOwnKeys(final boolean all) { |
sundar@350 | 503 | return inGlobal(new Callable<String[]>() { |
sundar@350 | 504 | @Override public String[] call() { |
sundar@437 | 505 | return sobj.getOwnKeys(all); |
sundar@350 | 506 | } |
sundar@350 | 507 | }); |
sundar@350 | 508 | } |
sundar@350 | 509 | |
sundar@350 | 510 | /** |
sundar@350 | 511 | * Flag this script object as non extensible |
sundar@350 | 512 | * |
sundar@350 | 513 | * @return the object after being made non extensible |
sundar@350 | 514 | */ |
sundar@350 | 515 | public ScriptObjectMirror preventExtensions() { |
sundar@350 | 516 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 517 | @Override public ScriptObjectMirror call() { |
sundar@437 | 518 | sobj.preventExtensions(); |
sundar@350 | 519 | return ScriptObjectMirror.this; |
sundar@350 | 520 | } |
sundar@350 | 521 | }); |
sundar@350 | 522 | } |
sundar@350 | 523 | |
sundar@350 | 524 | /** |
sundar@350 | 525 | * Check if this script object is extensible |
sundar@350 | 526 | * @return true if extensible |
sundar@350 | 527 | */ |
sundar@350 | 528 | public boolean isExtensible() { |
sundar@350 | 529 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 530 | @Override public Boolean call() { |
sundar@437 | 531 | return sobj.isExtensible(); |
sundar@350 | 532 | } |
sundar@350 | 533 | }); |
sundar@350 | 534 | } |
sundar@350 | 535 | |
sundar@350 | 536 | /** |
sundar@350 | 537 | * ECMAScript 15.2.3.8 - seal implementation |
sundar@350 | 538 | * @return the sealed script object |
sundar@350 | 539 | */ |
sundar@350 | 540 | public ScriptObjectMirror seal() { |
sundar@350 | 541 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 542 | @Override public ScriptObjectMirror call() { |
sundar@437 | 543 | sobj.seal(); |
sundar@350 | 544 | return ScriptObjectMirror.this; |
sundar@350 | 545 | } |
sundar@350 | 546 | }); |
sundar@350 | 547 | } |
sundar@350 | 548 | |
sundar@350 | 549 | /** |
sundar@350 | 550 | * Check whether this script object is sealed |
sundar@350 | 551 | * @return true if sealed |
sundar@350 | 552 | */ |
sundar@350 | 553 | public boolean isSealed() { |
sundar@350 | 554 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 555 | @Override public Boolean call() { |
sundar@437 | 556 | return sobj.isSealed(); |
sundar@350 | 557 | } |
sundar@350 | 558 | }); |
sundar@350 | 559 | } |
sundar@350 | 560 | |
sundar@350 | 561 | /** |
sundar@350 | 562 | * ECMA 15.2.39 - freeze implementation. Freeze this script object |
sundar@350 | 563 | * @return the frozen script object |
sundar@350 | 564 | */ |
sundar@350 | 565 | public ScriptObjectMirror freeze() { |
sundar@350 | 566 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 567 | @Override public ScriptObjectMirror call() { |
sundar@437 | 568 | sobj.freeze(); |
sundar@350 | 569 | return ScriptObjectMirror.this; |
sundar@350 | 570 | } |
sundar@350 | 571 | }); |
sundar@350 | 572 | } |
sundar@350 | 573 | |
sundar@350 | 574 | /** |
sundar@350 | 575 | * Check whether this script object is frozen |
sundar@350 | 576 | * @return true if frozen |
sundar@350 | 577 | */ |
sundar@350 | 578 | public boolean isFrozen() { |
sundar@350 | 579 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 580 | @Override public Boolean call() { |
sundar@437 | 581 | return sobj.isFrozen(); |
sundar@350 | 582 | } |
sundar@350 | 583 | }); |
sundar@350 | 584 | } |
sundar@350 | 585 | |
sundar@437 | 586 | /** |
sundar@350 | 587 | * Utility to check if given object is ECMAScript undefined value |
sundar@350 | 588 | * |
sundar@350 | 589 | * @param obj object to check |
sundar@350 | 590 | * @return true if 'obj' is ECMAScript undefined value |
sundar@350 | 591 | */ |
sundar@350 | 592 | public static boolean isUndefined(final Object obj) { |
sundar@350 | 593 | return obj == ScriptRuntime.UNDEFINED; |
sundar@350 | 594 | } |
sundar@350 | 595 | |
sundar@350 | 596 | /** |
sundar@322 | 597 | * Make a script object mirror on given object if needed. |
sundar@322 | 598 | * |
sundar@322 | 599 | * @param obj object to be wrapped |
sundar@322 | 600 | * @param homeGlobal global to which this object belongs |
sundar@322 | 601 | * @return wrapped object |
sundar@322 | 602 | */ |
sundar@322 | 603 | public static Object wrap(final Object obj, final ScriptObject homeGlobal) { |
sundar@456 | 604 | return (obj instanceof ScriptObject && homeGlobal != null) ? new ScriptObjectMirror((ScriptObject)obj, homeGlobal) : obj; |
jlaskey@3 | 605 | } |
jlaskey@3 | 606 | |
sundar@322 | 607 | /** |
sundar@322 | 608 | * Unwrap a script object mirror if needed. |
sundar@322 | 609 | * |
sundar@322 | 610 | * @param obj object to be unwrapped |
sundar@322 | 611 | * @param homeGlobal global to which this object belongs |
sundar@322 | 612 | * @return unwrapped object |
sundar@322 | 613 | */ |
sundar@322 | 614 | public static Object unwrap(final Object obj, final ScriptObject homeGlobal) { |
jlaskey@3 | 615 | if (obj instanceof ScriptObjectMirror) { |
jlaskey@3 | 616 | final ScriptObjectMirror mirror = (ScriptObjectMirror)obj; |
jlaskey@3 | 617 | return (mirror.global == homeGlobal)? mirror.sobj : obj; |
jlaskey@3 | 618 | } |
jlaskey@3 | 619 | |
jlaskey@3 | 620 | return obj; |
jlaskey@3 | 621 | } |
jlaskey@3 | 622 | |
sundar@322 | 623 | /** |
sundar@322 | 624 | * Wrap an array of object to script object mirrors if needed. |
sundar@322 | 625 | * |
sundar@322 | 626 | * @param args array to be unwrapped |
sundar@322 | 627 | * @param homeGlobal global to which this object belongs |
sundar@322 | 628 | * @return wrapped array |
sundar@322 | 629 | */ |
sundar@322 | 630 | public static Object[] wrapArray(final Object[] args, final ScriptObject homeGlobal) { |
jlaskey@3 | 631 | if (args == null || args.length == 0) { |
jlaskey@3 | 632 | return args; |
jlaskey@3 | 633 | } |
jlaskey@3 | 634 | |
jlaskey@3 | 635 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 636 | int index = 0; |
jlaskey@3 | 637 | for (final Object obj : args) { |
jlaskey@3 | 638 | newArgs[index] = wrap(obj, homeGlobal); |
jlaskey@3 | 639 | index++; |
jlaskey@3 | 640 | } |
jlaskey@3 | 641 | return newArgs; |
jlaskey@3 | 642 | } |
jlaskey@3 | 643 | |
sundar@322 | 644 | /** |
sundar@322 | 645 | * Unwrap an array of script object mirrors if needed. |
sundar@322 | 646 | * |
sundar@322 | 647 | * @param args array to be unwrapped |
sundar@322 | 648 | * @param homeGlobal global to which this object belongs |
sundar@322 | 649 | * @return unwrapped array |
sundar@322 | 650 | */ |
sundar@322 | 651 | public static Object[] unwrapArray(final Object[] args, final ScriptObject homeGlobal) { |
jlaskey@3 | 652 | if (args == null || args.length == 0) { |
jlaskey@3 | 653 | return args; |
jlaskey@3 | 654 | } |
jlaskey@3 | 655 | |
jlaskey@3 | 656 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 657 | int index = 0; |
jlaskey@3 | 658 | for (final Object obj : args) { |
jlaskey@3 | 659 | newArgs[index] = unwrap(obj, homeGlobal); |
jlaskey@3 | 660 | index++; |
jlaskey@3 | 661 | } |
jlaskey@3 | 662 | return newArgs; |
jlaskey@3 | 663 | } |
sundar@322 | 664 | |
sundar@322 | 665 | // package-privates below this. |
sundar@437 | 666 | |
sundar@437 | 667 | ScriptObjectMirror(final ScriptObject sobj, final ScriptObject global) { |
sundar@472 | 668 | assert sobj != null : "ScriptObjectMirror on null!"; |
sundar@541 | 669 | assert global instanceof GlobalObject : "global is not a GlobalObject"; |
sundar@472 | 670 | |
sundar@437 | 671 | this.sobj = sobj; |
sundar@437 | 672 | this.global = global; |
sundar@541 | 673 | this.strict = ((GlobalObject)global).isStrictContext(); |
sundar@437 | 674 | } |
sundar@437 | 675 | |
sundar@472 | 676 | // accessors for script engine |
sundar@322 | 677 | ScriptObject getScriptObject() { |
sundar@322 | 678 | return sobj; |
sundar@322 | 679 | } |
sundar@322 | 680 | |
sundar@472 | 681 | ScriptObject getHomeGlobal() { |
sundar@472 | 682 | return global; |
sundar@472 | 683 | } |
sundar@472 | 684 | |
sundar@322 | 685 | static Object translateUndefined(Object obj) { |
sundar@322 | 686 | return (obj == ScriptRuntime.UNDEFINED)? null : obj; |
sundar@322 | 687 | } |
sundar@437 | 688 | |
sundar@437 | 689 | // internals only below this. |
sundar@437 | 690 | private <V> V inGlobal(final Callable<V> callable) { |
sundar@456 | 691 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@437 | 692 | final boolean globalChanged = (oldGlobal != global); |
sundar@437 | 693 | if (globalChanged) { |
sundar@456 | 694 | Context.setGlobal(global); |
sundar@437 | 695 | } |
sundar@437 | 696 | try { |
sundar@437 | 697 | return callable.call(); |
sundar@437 | 698 | } catch (final RuntimeException e) { |
sundar@437 | 699 | throw e; |
sundar@437 | 700 | } catch (final Exception e) { |
sundar@437 | 701 | throw new AssertionError("Cannot happen", e); |
sundar@437 | 702 | } finally { |
sundar@437 | 703 | if (globalChanged) { |
sundar@456 | 704 | Context.setGlobal(oldGlobal); |
sundar@437 | 705 | } |
sundar@437 | 706 | } |
sundar@437 | 707 | } |
attila@644 | 708 | |
attila@645 | 709 | @Override |
attila@644 | 710 | public double toNumber() { |
attila@644 | 711 | return inGlobal(new Callable<Double>() { |
attila@644 | 712 | @Override public Double call() { |
attila@644 | 713 | return JSType.toNumber(sobj); |
attila@644 | 714 | } |
attila@644 | 715 | }); |
attila@644 | 716 | } |
jlaskey@3 | 717 | } |