Fri, 12 Jul 2013 20:06:41 +0530
8020463: Input argument array wrapping in loadWithNewGlobal is wrong
Reviewed-by: 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@41 | 28 | import java.security.AccessController; |
sundar@41 | 29 | import java.security.PrivilegedAction; |
jlaskey@3 | 30 | import java.util.AbstractMap; |
jlaskey@3 | 31 | import java.util.ArrayList; |
jlaskey@3 | 32 | import java.util.Collection; |
jlaskey@3 | 33 | import java.util.Collections; |
sundar@321 | 34 | import java.util.LinkedHashSet; |
jlaskey@3 | 35 | import java.util.Iterator; |
jlaskey@3 | 36 | import java.util.List; |
jlaskey@3 | 37 | import java.util.Map; |
jlaskey@3 | 38 | import java.util.Set; |
jlaskey@3 | 39 | import java.util.concurrent.Callable; |
sundar@38 | 40 | import javax.script.Bindings; |
jlaskey@3 | 41 | import jdk.nashorn.internal.runtime.Context; |
jlaskey@3 | 42 | import jdk.nashorn.internal.runtime.ScriptFunction; |
jlaskey@3 | 43 | import jdk.nashorn.internal.runtime.ScriptObject; |
sundar@33 | 44 | import jdk.nashorn.internal.runtime.ScriptRuntime; |
jlaskey@3 | 45 | |
jlaskey@3 | 46 | /** |
jlaskey@3 | 47 | * Mirror object that wraps a given ScriptObject instance. User can |
sundar@38 | 48 | * access ScriptObject via the javax.script.Bindings interface or |
sundar@38 | 49 | * netscape.javascript.JSObject interface. |
jlaskey@3 | 50 | */ |
sundar@321 | 51 | public final class ScriptObjectMirror extends JSObject implements Bindings { |
jlaskey@3 | 52 | private final ScriptObject sobj; |
jlaskey@3 | 53 | private final ScriptObject global; |
jlaskey@3 | 54 | |
jlaskey@3 | 55 | @Override |
jlaskey@3 | 56 | public boolean equals(final Object other) { |
jlaskey@3 | 57 | if (other instanceof ScriptObjectMirror) { |
jlaskey@3 | 58 | return sobj.equals(((ScriptObjectMirror)other).sobj); |
jlaskey@3 | 59 | } |
jlaskey@3 | 60 | |
jlaskey@3 | 61 | return false; |
jlaskey@3 | 62 | } |
jlaskey@3 | 63 | |
jlaskey@3 | 64 | @Override |
jlaskey@3 | 65 | public int hashCode() { |
jlaskey@3 | 66 | return sobj.hashCode(); |
jlaskey@3 | 67 | } |
jlaskey@3 | 68 | |
sundar@33 | 69 | @Override |
sundar@33 | 70 | public String toString() { |
sundar@33 | 71 | return inGlobal(new Callable<String>() { |
sundar@33 | 72 | @Override |
sundar@33 | 73 | public String call() { |
sundar@33 | 74 | return ScriptRuntime.safeToString(sobj); |
sundar@33 | 75 | } |
sundar@33 | 76 | }); |
sundar@33 | 77 | } |
sundar@33 | 78 | |
jlaskey@3 | 79 | // JSObject methods |
jlaskey@3 | 80 | @Override |
sundar@376 | 81 | public Object call(final String functionName, final Object... args) { |
sundar@44 | 82 | final ScriptObject oldGlobal = NashornScriptEngine.getNashornGlobal(); |
jlaskey@3 | 83 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 84 | |
sundar@88 | 85 | try { |
sundar@88 | 86 | if (globalChanged) { |
sundar@88 | 87 | NashornScriptEngine.setNashornGlobal(global); |
jlaskey@3 | 88 | } |
jlaskey@3 | 89 | |
sundar@376 | 90 | final Object val = functionName == null? sobj : sobj.get(functionName); |
sundar@88 | 91 | if (! (val instanceof ScriptFunction)) { |
sundar@376 | 92 | throw new RuntimeException("No such function " + ((functionName != null)? functionName : "")); |
jlaskey@3 | 93 | } |
jlaskey@3 | 94 | |
sundar@88 | 95 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@88 | 96 | return wrap(ScriptRuntime.checkAndApply((ScriptFunction)val, sobj, unwrapArray(modArgs, global)), global); |
sundar@88 | 97 | } catch (final RuntimeException | Error e) { |
sundar@88 | 98 | throw e; |
sundar@88 | 99 | } catch (final Throwable t) { |
sundar@88 | 100 | throw new RuntimeException(t); |
sundar@88 | 101 | } finally { |
sundar@88 | 102 | if (globalChanged) { |
sundar@88 | 103 | NashornScriptEngine.setNashornGlobal(oldGlobal); |
sundar@88 | 104 | } |
sundar@88 | 105 | } |
jlaskey@3 | 106 | } |
jlaskey@3 | 107 | |
jlaskey@3 | 108 | @Override |
sundar@376 | 109 | public Object newObject(final String functionName, final Object... args) { |
sundar@376 | 110 | final ScriptObject oldGlobal = NashornScriptEngine.getNashornGlobal(); |
sundar@376 | 111 | final boolean globalChanged = (oldGlobal != global); |
sundar@376 | 112 | |
sundar@376 | 113 | try { |
sundar@376 | 114 | if (globalChanged) { |
sundar@376 | 115 | NashornScriptEngine.setNashornGlobal(global); |
sundar@376 | 116 | } |
sundar@376 | 117 | |
sundar@376 | 118 | final Object val = functionName == null? sobj : sobj.get(functionName); |
sundar@376 | 119 | if (! (val instanceof ScriptFunction)) { |
sundar@376 | 120 | throw new RuntimeException("not a constructor " + ((functionName != null)? functionName : "")); |
sundar@376 | 121 | } |
sundar@376 | 122 | |
sundar@376 | 123 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@376 | 124 | return wrap(ScriptRuntime.checkAndConstruct((ScriptFunction)val, unwrapArray(modArgs, global)), global); |
sundar@376 | 125 | } catch (final RuntimeException | Error e) { |
sundar@376 | 126 | throw e; |
sundar@376 | 127 | } catch (final Throwable t) { |
sundar@376 | 128 | throw new RuntimeException(t); |
sundar@376 | 129 | } finally { |
sundar@376 | 130 | if (globalChanged) { |
sundar@376 | 131 | NashornScriptEngine.setNashornGlobal(oldGlobal); |
sundar@376 | 132 | } |
sundar@376 | 133 | } |
sundar@376 | 134 | } |
sundar@376 | 135 | |
sundar@376 | 136 | @Override |
jlaskey@3 | 137 | public Object eval(final String s) { |
jlaskey@3 | 138 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 139 | @Override |
jlaskey@3 | 140 | public Object call() { |
sundar@41 | 141 | final Context context = AccessController.doPrivileged( |
sundar@41 | 142 | new PrivilegedAction<Context>() { |
sundar@41 | 143 | @Override |
sundar@41 | 144 | public Context run() { |
sundar@41 | 145 | return Context.getContext(); |
sundar@41 | 146 | } |
sundar@41 | 147 | }); |
sundar@41 | 148 | return wrap(context.eval(global, s, null, null, false), global); |
jlaskey@3 | 149 | } |
jlaskey@3 | 150 | }); |
jlaskey@3 | 151 | } |
jlaskey@3 | 152 | |
jlaskey@3 | 153 | @Override |
jlaskey@3 | 154 | public Object getMember(final String name) { |
sundar@38 | 155 | return inGlobal(new Callable<Object>() { |
sundar@38 | 156 | @Override public Object call() { |
sundar@38 | 157 | return wrap(sobj.get(name), global); |
sundar@38 | 158 | } |
sundar@38 | 159 | }); |
jlaskey@3 | 160 | } |
jlaskey@3 | 161 | |
jlaskey@3 | 162 | @Override |
jlaskey@3 | 163 | public Object getSlot(final int index) { |
sundar@38 | 164 | return inGlobal(new Callable<Object>() { |
sundar@38 | 165 | @Override public Object call() { |
sundar@38 | 166 | return wrap(sobj.get(index), global); |
sundar@38 | 167 | } |
sundar@38 | 168 | }); |
jlaskey@3 | 169 | } |
jlaskey@3 | 170 | |
jlaskey@3 | 171 | @Override |
jlaskey@3 | 172 | public void removeMember(final String name) { |
jlaskey@3 | 173 | remove(name); |
jlaskey@3 | 174 | } |
jlaskey@3 | 175 | |
jlaskey@3 | 176 | @Override |
jlaskey@3 | 177 | public void setMember(final String name, final Object value) { |
sundar@88 | 178 | put(name, value); |
jlaskey@3 | 179 | } |
jlaskey@3 | 180 | |
jlaskey@3 | 181 | @Override |
jlaskey@3 | 182 | public void setSlot(final int index, final Object value) { |
sundar@38 | 183 | inGlobal(new Callable<Void>() { |
sundar@38 | 184 | @Override public Void call() { |
sundar@41 | 185 | sobj.set(index, unwrap(value, global), global.isStrictContext()); |
sundar@38 | 186 | return null; |
sundar@38 | 187 | } |
sundar@38 | 188 | }); |
jlaskey@3 | 189 | } |
jlaskey@3 | 190 | |
sundar@437 | 191 | // javax.script.Bindings methods |
sundar@437 | 192 | |
jlaskey@3 | 193 | @Override |
jlaskey@3 | 194 | public void clear() { |
jlaskey@3 | 195 | inGlobal(new Callable<Object>() { |
jlaskey@3 | 196 | @Override public Object call() { |
jlaskey@3 | 197 | sobj.clear(); |
jlaskey@3 | 198 | return null; |
sundar@38 | 199 | } |
sundar@38 | 200 | }); |
jlaskey@3 | 201 | } |
jlaskey@3 | 202 | |
jlaskey@3 | 203 | @Override |
jlaskey@3 | 204 | public boolean containsKey(final Object key) { |
jlaskey@3 | 205 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 206 | @Override public Boolean call() { |
jlaskey@3 | 207 | return sobj.containsKey(unwrap(key, global)); |
sundar@38 | 208 | } |
sundar@38 | 209 | }); |
jlaskey@3 | 210 | } |
jlaskey@3 | 211 | |
jlaskey@3 | 212 | @Override |
jlaskey@3 | 213 | public boolean containsValue(final Object value) { |
jlaskey@3 | 214 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 215 | @Override public Boolean call() { |
jlaskey@3 | 216 | return sobj.containsValue(unwrap(value, global)); |
sundar@38 | 217 | } |
sundar@38 | 218 | }); |
jlaskey@3 | 219 | } |
jlaskey@3 | 220 | |
jlaskey@3 | 221 | @Override |
sundar@38 | 222 | public Set<Map.Entry<String, Object>> entrySet() { |
sundar@38 | 223 | return inGlobal(new Callable<Set<Map.Entry<String, Object>>>() { |
sundar@38 | 224 | @Override public Set<Map.Entry<String, Object>> call() { |
jlaskey@3 | 225 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 226 | final Set<Map.Entry<String, Object>> entries = new LinkedHashSet<>(); |
jlaskey@3 | 227 | |
jlaskey@3 | 228 | while (iter.hasNext()) { |
sundar@38 | 229 | final String key = iter.next(); |
sundar@38 | 230 | final Object value = translateUndefined(wrap(sobj.get(key), global)); |
jlaskey@3 | 231 | entries.add(new AbstractMap.SimpleImmutableEntry<>(key, value)); |
jlaskey@3 | 232 | } |
jlaskey@3 | 233 | |
jlaskey@3 | 234 | return Collections.unmodifiableSet(entries); |
jlaskey@3 | 235 | } |
jlaskey@3 | 236 | }); |
jlaskey@3 | 237 | } |
jlaskey@3 | 238 | |
jlaskey@3 | 239 | @Override |
jlaskey@3 | 240 | public Object get(final Object key) { |
sundar@38 | 241 | return inGlobal(new Callable<Object>() { |
sundar@38 | 242 | @Override public Object call() { |
sundar@38 | 243 | return translateUndefined(wrap(sobj.get(key), global)); |
sundar@38 | 244 | } |
sundar@38 | 245 | }); |
jlaskey@3 | 246 | } |
jlaskey@3 | 247 | |
jlaskey@3 | 248 | @Override |
jlaskey@3 | 249 | public boolean isEmpty() { |
sundar@38 | 250 | return inGlobal(new Callable<Boolean>() { |
sundar@38 | 251 | @Override public Boolean call() { |
sundar@38 | 252 | return sobj.isEmpty(); |
sundar@38 | 253 | } |
sundar@38 | 254 | }); |
jlaskey@3 | 255 | } |
jlaskey@3 | 256 | |
jlaskey@3 | 257 | @Override |
sundar@38 | 258 | public Set<String> keySet() { |
sundar@38 | 259 | return inGlobal(new Callable<Set<String>>() { |
sundar@38 | 260 | @Override public Set<String> call() { |
sundar@38 | 261 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 262 | final Set<String> keySet = new LinkedHashSet<>(); |
jlaskey@3 | 263 | |
sundar@38 | 264 | while (iter.hasNext()) { |
sundar@38 | 265 | keySet.add(iter.next()); |
sundar@38 | 266 | } |
sundar@38 | 267 | |
sundar@38 | 268 | return Collections.unmodifiableSet(keySet); |
jlaskey@3 | 269 | } |
sundar@38 | 270 | }); |
jlaskey@3 | 271 | } |
jlaskey@3 | 272 | |
jlaskey@3 | 273 | @Override |
sundar@38 | 274 | public Object put(final String key, final Object value) { |
sundar@88 | 275 | final ScriptObject oldGlobal = NashornScriptEngine.getNashornGlobal(); |
sundar@88 | 276 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 277 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 278 | @Override public Object call() { |
sundar@88 | 279 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@88 | 280 | return translateUndefined(wrap(sobj.put(key, unwrap(modValue, global)), global)); |
sundar@38 | 281 | } |
sundar@38 | 282 | }); |
jlaskey@3 | 283 | } |
jlaskey@3 | 284 | |
jlaskey@3 | 285 | @Override |
sundar@38 | 286 | public void putAll(final Map<? extends String, ? extends Object> map) { |
sundar@88 | 287 | final ScriptObject oldGlobal = NashornScriptEngine.getNashornGlobal(); |
sundar@88 | 288 | final boolean globalChanged = (oldGlobal != global); |
sundar@38 | 289 | inGlobal(new Callable<Object>() { |
sundar@38 | 290 | @Override public Object call() { |
sundar@414 | 291 | final boolean strict = global.isStrictContext(); |
sundar@38 | 292 | for (final Map.Entry<? extends String, ? extends Object> entry : map.entrySet()) { |
sundar@88 | 293 | final Object value = entry.getValue(); |
sundar@88 | 294 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@88 | 295 | sobj.set(entry.getKey(), unwrap(modValue, global), strict); |
sundar@38 | 296 | } |
sundar@38 | 297 | return null; |
jlaskey@3 | 298 | } |
sundar@38 | 299 | }); |
jlaskey@3 | 300 | } |
jlaskey@3 | 301 | |
jlaskey@3 | 302 | @Override |
jlaskey@3 | 303 | public Object remove(final Object key) { |
jlaskey@3 | 304 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 305 | @Override public Object call() { |
jlaskey@3 | 306 | return wrap(sobj.remove(unwrap(key, global)), global); |
jlaskey@3 | 307 | } |
jlaskey@3 | 308 | }); |
jlaskey@3 | 309 | } |
jlaskey@3 | 310 | |
sundar@321 | 311 | /** |
sundar@321 | 312 | * Delete a property from this object. |
sundar@321 | 313 | * |
sundar@321 | 314 | * @param key the property to be deleted |
sundar@321 | 315 | * |
sundar@321 | 316 | * @return if the delete was successful or not |
sundar@321 | 317 | */ |
sundar@321 | 318 | public boolean delete(final Object key) { |
sundar@321 | 319 | return inGlobal(new Callable<Boolean>() { |
sundar@321 | 320 | @Override public Boolean call() { |
sundar@321 | 321 | return sobj.delete(unwrap(key, global)); |
sundar@321 | 322 | } |
sundar@321 | 323 | }); |
sundar@321 | 324 | } |
sundar@321 | 325 | |
jlaskey@3 | 326 | @Override |
jlaskey@3 | 327 | public int size() { |
jlaskey@3 | 328 | return inGlobal(new Callable<Integer>() { |
jlaskey@3 | 329 | @Override public Integer call() { |
jlaskey@3 | 330 | return sobj.size(); |
jlaskey@3 | 331 | } |
jlaskey@3 | 332 | }); |
jlaskey@3 | 333 | } |
jlaskey@3 | 334 | |
jlaskey@3 | 335 | @Override |
jlaskey@3 | 336 | public Collection<Object> values() { |
sundar@38 | 337 | return inGlobal(new Callable<Collection<Object>>() { |
sundar@38 | 338 | @Override public Collection<Object> call() { |
sundar@38 | 339 | final List<Object> values = new ArrayList<>(size()); |
sundar@38 | 340 | final Iterator<Object> iter = sobj.valueIterator(); |
jlaskey@3 | 341 | |
sundar@38 | 342 | while (iter.hasNext()) { |
sundar@88 | 343 | values.add(translateUndefined(wrap(iter.next(), global))); |
sundar@38 | 344 | } |
sundar@38 | 345 | |
sundar@38 | 346 | return Collections.unmodifiableList(values); |
jlaskey@3 | 347 | } |
sundar@38 | 348 | }); |
sundar@38 | 349 | } |
jlaskey@3 | 350 | |
sundar@350 | 351 | // Support for ECMAScript Object API on mirrors |
sundar@350 | 352 | |
sundar@350 | 353 | /** |
sundar@350 | 354 | * Return the __proto__ of this object. |
sundar@350 | 355 | * @return __proto__ object. |
sundar@350 | 356 | */ |
sundar@350 | 357 | public Object getProto() { |
sundar@350 | 358 | return inGlobal(new Callable<Object>() { |
sundar@350 | 359 | @Override public Object call() { |
sundar@437 | 360 | return wrap(sobj.getProto(), global); |
sundar@350 | 361 | } |
sundar@350 | 362 | }); |
sundar@350 | 363 | } |
sundar@350 | 364 | |
sundar@350 | 365 | /** |
sundar@350 | 366 | * ECMA 8.12.1 [[GetOwnProperty]] (P) |
sundar@350 | 367 | * |
sundar@350 | 368 | * @param key property key |
sundar@350 | 369 | * |
sundar@350 | 370 | * @return Returns the Property Descriptor of the named own property of this |
sundar@350 | 371 | * object, or undefined if absent. |
sundar@350 | 372 | */ |
sundar@350 | 373 | public Object getOwnPropertyDescriptor(final String key) { |
sundar@350 | 374 | return inGlobal(new Callable<Object>() { |
sundar@350 | 375 | @Override public Object call() { |
sundar@437 | 376 | return wrap(sobj.getOwnPropertyDescriptor(key), global); |
sundar@350 | 377 | } |
sundar@350 | 378 | }); |
sundar@350 | 379 | } |
sundar@350 | 380 | |
sundar@350 | 381 | /** |
sundar@350 | 382 | * return an array of own property keys associated with the object. |
sundar@350 | 383 | * |
sundar@350 | 384 | * @param all True if to include non-enumerable keys. |
sundar@350 | 385 | * @return Array of keys. |
sundar@350 | 386 | */ |
sundar@350 | 387 | public String[] getOwnKeys(final boolean all) { |
sundar@350 | 388 | return inGlobal(new Callable<String[]>() { |
sundar@350 | 389 | @Override public String[] call() { |
sundar@437 | 390 | return sobj.getOwnKeys(all); |
sundar@350 | 391 | } |
sundar@350 | 392 | }); |
sundar@350 | 393 | } |
sundar@350 | 394 | |
sundar@350 | 395 | /** |
sundar@350 | 396 | * Flag this script object as non extensible |
sundar@350 | 397 | * |
sundar@350 | 398 | * @return the object after being made non extensible |
sundar@350 | 399 | */ |
sundar@350 | 400 | public ScriptObjectMirror preventExtensions() { |
sundar@350 | 401 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 402 | @Override public ScriptObjectMirror call() { |
sundar@437 | 403 | sobj.preventExtensions(); |
sundar@350 | 404 | return ScriptObjectMirror.this; |
sundar@350 | 405 | } |
sundar@350 | 406 | }); |
sundar@350 | 407 | } |
sundar@350 | 408 | |
sundar@350 | 409 | /** |
sundar@350 | 410 | * Check if this script object is extensible |
sundar@350 | 411 | * @return true if extensible |
sundar@350 | 412 | */ |
sundar@350 | 413 | public boolean isExtensible() { |
sundar@350 | 414 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 415 | @Override public Boolean call() { |
sundar@437 | 416 | return sobj.isExtensible(); |
sundar@350 | 417 | } |
sundar@350 | 418 | }); |
sundar@350 | 419 | } |
sundar@350 | 420 | |
sundar@350 | 421 | /** |
sundar@350 | 422 | * ECMAScript 15.2.3.8 - seal implementation |
sundar@350 | 423 | * @return the sealed script object |
sundar@350 | 424 | */ |
sundar@350 | 425 | public ScriptObjectMirror seal() { |
sundar@350 | 426 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 427 | @Override public ScriptObjectMirror call() { |
sundar@437 | 428 | sobj.seal(); |
sundar@350 | 429 | return ScriptObjectMirror.this; |
sundar@350 | 430 | } |
sundar@350 | 431 | }); |
sundar@350 | 432 | } |
sundar@350 | 433 | |
sundar@350 | 434 | /** |
sundar@350 | 435 | * Check whether this script object is sealed |
sundar@350 | 436 | * @return true if sealed |
sundar@350 | 437 | */ |
sundar@350 | 438 | public boolean isSealed() { |
sundar@350 | 439 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 440 | @Override public Boolean call() { |
sundar@437 | 441 | return sobj.isSealed(); |
sundar@350 | 442 | } |
sundar@350 | 443 | }); |
sundar@350 | 444 | } |
sundar@350 | 445 | |
sundar@350 | 446 | /** |
sundar@350 | 447 | * ECMA 15.2.39 - freeze implementation. Freeze this script object |
sundar@350 | 448 | * @return the frozen script object |
sundar@350 | 449 | */ |
sundar@350 | 450 | public ScriptObjectMirror freeze() { |
sundar@350 | 451 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 452 | @Override public ScriptObjectMirror call() { |
sundar@437 | 453 | sobj.freeze(); |
sundar@350 | 454 | return ScriptObjectMirror.this; |
sundar@350 | 455 | } |
sundar@350 | 456 | }); |
sundar@350 | 457 | } |
sundar@350 | 458 | |
sundar@350 | 459 | /** |
sundar@350 | 460 | * Check whether this script object is frozen |
sundar@350 | 461 | * @return true if frozen |
sundar@350 | 462 | */ |
sundar@350 | 463 | public boolean isFrozen() { |
sundar@350 | 464 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 465 | @Override public Boolean call() { |
sundar@437 | 466 | return sobj.isFrozen(); |
sundar@350 | 467 | } |
sundar@350 | 468 | }); |
sundar@350 | 469 | } |
sundar@350 | 470 | |
sundar@350 | 471 | // ECMAScript instanceof check |
sundar@350 | 472 | |
sundar@350 | 473 | /** |
sundar@350 | 474 | * Checking whether a script object is an instance of another by |
sundar@350 | 475 | * walking the proto chain |
sundar@350 | 476 | * |
sundar@350 | 477 | * @param instance instace to check |
sundar@350 | 478 | * @return true if 'instance' is an instance of this object |
sundar@350 | 479 | */ |
sundar@350 | 480 | public boolean isInstance(final ScriptObjectMirror instance) { |
sundar@350 | 481 | // if not belongs to my global scope, return false |
sundar@350 | 482 | if (instance == null || global != instance.global) { |
sundar@350 | 483 | return false; |
sundar@350 | 484 | } |
sundar@350 | 485 | |
sundar@350 | 486 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 487 | @Override public Boolean call() { |
sundar@437 | 488 | return sobj.isInstance(instance.sobj); |
sundar@350 | 489 | } |
sundar@350 | 490 | }); |
sundar@350 | 491 | } |
sundar@350 | 492 | |
sundar@350 | 493 | /** |
sundar@437 | 494 | * is this a function object? |
sundar@437 | 495 | * |
sundar@437 | 496 | * @return if this mirror wraps a ECMAScript function instance |
sundar@437 | 497 | */ |
sundar@437 | 498 | public boolean isFunction() { |
sundar@437 | 499 | return sobj instanceof ScriptFunction; |
sundar@437 | 500 | } |
sundar@437 | 501 | |
sundar@437 | 502 | /** |
sundar@437 | 503 | * is this a 'use strict' function object? |
sundar@437 | 504 | * |
sundar@437 | 505 | * @return true if this mirror represents a ECMAScript 'use strict' function |
sundar@437 | 506 | */ |
sundar@437 | 507 | public boolean isStrictFunction() { |
sundar@437 | 508 | return isFunction() && ((ScriptFunction)sobj).isStrict(); |
sundar@437 | 509 | } |
sundar@437 | 510 | |
sundar@437 | 511 | /** |
sundar@437 | 512 | * is this an array object? |
sundar@437 | 513 | * |
sundar@437 | 514 | * @return if this mirror wraps a ECMAScript array object |
sundar@437 | 515 | */ |
sundar@437 | 516 | public boolean isArray() { |
sundar@437 | 517 | return sobj.isArray(); |
sundar@437 | 518 | } |
sundar@437 | 519 | |
sundar@437 | 520 | /** |
sundar@350 | 521 | * Utility to check if given object is ECMAScript undefined value |
sundar@350 | 522 | * |
sundar@350 | 523 | * @param obj object to check |
sundar@350 | 524 | * @return true if 'obj' is ECMAScript undefined value |
sundar@350 | 525 | */ |
sundar@350 | 526 | public static boolean isUndefined(final Object obj) { |
sundar@350 | 527 | return obj == ScriptRuntime.UNDEFINED; |
sundar@350 | 528 | } |
sundar@350 | 529 | |
sundar@350 | 530 | /** |
sundar@322 | 531 | * Make a script object mirror on given object if needed. |
sundar@322 | 532 | * |
sundar@322 | 533 | * @param obj object to be wrapped |
sundar@322 | 534 | * @param homeGlobal global to which this object belongs |
sundar@322 | 535 | * @return wrapped object |
sundar@322 | 536 | */ |
sundar@322 | 537 | public static Object wrap(final Object obj, final ScriptObject homeGlobal) { |
jlaskey@3 | 538 | return (obj instanceof ScriptObject) ? new ScriptObjectMirror((ScriptObject)obj, homeGlobal) : obj; |
jlaskey@3 | 539 | } |
jlaskey@3 | 540 | |
sundar@322 | 541 | /** |
sundar@322 | 542 | * Unwrap a script object mirror if needed. |
sundar@322 | 543 | * |
sundar@322 | 544 | * @param obj object to be unwrapped |
sundar@322 | 545 | * @param homeGlobal global to which this object belongs |
sundar@322 | 546 | * @return unwrapped object |
sundar@322 | 547 | */ |
sundar@322 | 548 | public static Object unwrap(final Object obj, final ScriptObject homeGlobal) { |
jlaskey@3 | 549 | if (obj instanceof ScriptObjectMirror) { |
jlaskey@3 | 550 | final ScriptObjectMirror mirror = (ScriptObjectMirror)obj; |
jlaskey@3 | 551 | return (mirror.global == homeGlobal)? mirror.sobj : obj; |
jlaskey@3 | 552 | } |
jlaskey@3 | 553 | |
jlaskey@3 | 554 | return obj; |
jlaskey@3 | 555 | } |
jlaskey@3 | 556 | |
sundar@322 | 557 | /** |
sundar@322 | 558 | * Wrap an array of object to script object mirrors if needed. |
sundar@322 | 559 | * |
sundar@322 | 560 | * @param args array to be unwrapped |
sundar@322 | 561 | * @param homeGlobal global to which this object belongs |
sundar@322 | 562 | * @return wrapped array |
sundar@322 | 563 | */ |
sundar@322 | 564 | public static Object[] wrapArray(final Object[] args, final ScriptObject homeGlobal) { |
jlaskey@3 | 565 | if (args == null || args.length == 0) { |
jlaskey@3 | 566 | return args; |
jlaskey@3 | 567 | } |
jlaskey@3 | 568 | |
jlaskey@3 | 569 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 570 | int index = 0; |
jlaskey@3 | 571 | for (final Object obj : args) { |
jlaskey@3 | 572 | newArgs[index] = wrap(obj, homeGlobal); |
jlaskey@3 | 573 | index++; |
jlaskey@3 | 574 | } |
jlaskey@3 | 575 | return newArgs; |
jlaskey@3 | 576 | } |
jlaskey@3 | 577 | |
sundar@322 | 578 | /** |
sundar@322 | 579 | * Unwrap an array of script object mirrors if needed. |
sundar@322 | 580 | * |
sundar@322 | 581 | * @param args array to be unwrapped |
sundar@322 | 582 | * @param homeGlobal global to which this object belongs |
sundar@322 | 583 | * @return unwrapped array |
sundar@322 | 584 | */ |
sundar@322 | 585 | public static Object[] unwrapArray(final Object[] args, final ScriptObject homeGlobal) { |
jlaskey@3 | 586 | if (args == null || args.length == 0) { |
jlaskey@3 | 587 | return args; |
jlaskey@3 | 588 | } |
jlaskey@3 | 589 | |
jlaskey@3 | 590 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 591 | int index = 0; |
jlaskey@3 | 592 | for (final Object obj : args) { |
jlaskey@3 | 593 | newArgs[index] = unwrap(obj, homeGlobal); |
jlaskey@3 | 594 | index++; |
jlaskey@3 | 595 | } |
jlaskey@3 | 596 | return newArgs; |
jlaskey@3 | 597 | } |
sundar@322 | 598 | |
sundar@322 | 599 | // package-privates below this. |
sundar@437 | 600 | |
sundar@437 | 601 | ScriptObjectMirror(final ScriptObject sobj, final ScriptObject global) { |
sundar@437 | 602 | this.sobj = sobj; |
sundar@437 | 603 | this.global = global; |
sundar@437 | 604 | } |
sundar@437 | 605 | |
sundar@322 | 606 | ScriptObject getScriptObject() { |
sundar@322 | 607 | return sobj; |
sundar@322 | 608 | } |
sundar@322 | 609 | |
sundar@322 | 610 | static Object translateUndefined(Object obj) { |
sundar@322 | 611 | return (obj == ScriptRuntime.UNDEFINED)? null : obj; |
sundar@322 | 612 | } |
sundar@437 | 613 | |
sundar@437 | 614 | // internals only below this. |
sundar@437 | 615 | private <V> V inGlobal(final Callable<V> callable) { |
sundar@437 | 616 | final ScriptObject oldGlobal = NashornScriptEngine.getNashornGlobal(); |
sundar@437 | 617 | final boolean globalChanged = (oldGlobal != global); |
sundar@437 | 618 | if (globalChanged) { |
sundar@437 | 619 | NashornScriptEngine.setNashornGlobal(global); |
sundar@437 | 620 | } |
sundar@437 | 621 | try { |
sundar@437 | 622 | return callable.call(); |
sundar@437 | 623 | } catch (final RuntimeException e) { |
sundar@437 | 624 | throw e; |
sundar@437 | 625 | } catch (final Exception e) { |
sundar@437 | 626 | throw new AssertionError("Cannot happen", e); |
sundar@437 | 627 | } finally { |
sundar@437 | 628 | if (globalChanged) { |
sundar@437 | 629 | NashornScriptEngine.setNashornGlobal(oldGlobal); |
sundar@437 | 630 | } |
sundar@437 | 631 | } |
sundar@437 | 632 | } |
sundar@437 | 633 | |
jlaskey@3 | 634 | } |