Mon, 04 Nov 2013 18:52:22 +0530
8027753: Support ScriptObject to JSObject, ScriptObjectMirror, Map, Bindings auto-conversion as well as explicit wrap, unwrap
Reviewed-by: jlaskey, hannesw, attila
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; |
attila@663 | 44 | import jdk.nashorn.internal.runtime.ConsString; |
jlaskey@3 | 45 | import jdk.nashorn.internal.runtime.Context; |
sundar@541 | 46 | import jdk.nashorn.internal.runtime.GlobalObject; |
attila@644 | 47 | import jdk.nashorn.internal.runtime.JSType; |
jlaskey@3 | 48 | import jdk.nashorn.internal.runtime.ScriptFunction; |
jlaskey@3 | 49 | import jdk.nashorn.internal.runtime.ScriptObject; |
sundar@33 | 50 | import jdk.nashorn.internal.runtime.ScriptRuntime; |
jlaskey@3 | 51 | |
jlaskey@3 | 52 | /** |
sundar@546 | 53 | * Mirror object that wraps a given Nashorn Script object. |
jlaskey@3 | 54 | */ |
sundar@648 | 55 | public final class ScriptObjectMirror extends AbstractJSObject implements Bindings { |
sundar@492 | 56 | private static AccessControlContext getContextAccCtxt() { |
sundar@492 | 57 | final Permissions perms = new Permissions(); |
sundar@492 | 58 | perms.add(new RuntimePermission(Context.NASHORN_GET_CONTEXT)); |
sundar@492 | 59 | return new AccessControlContext(new ProtectionDomain[] { new ProtectionDomain(null, perms) }); |
sundar@492 | 60 | } |
sundar@492 | 61 | |
sundar@492 | 62 | private static final AccessControlContext GET_CONTEXT_ACC_CTXT = getContextAccCtxt(); |
sundar@492 | 63 | |
jlaskey@3 | 64 | private final ScriptObject sobj; |
jlaskey@3 | 65 | private final ScriptObject global; |
sundar@541 | 66 | private final boolean strict; |
jlaskey@3 | 67 | |
jlaskey@3 | 68 | @Override |
jlaskey@3 | 69 | public boolean equals(final Object other) { |
jlaskey@3 | 70 | if (other instanceof ScriptObjectMirror) { |
jlaskey@3 | 71 | return sobj.equals(((ScriptObjectMirror)other).sobj); |
jlaskey@3 | 72 | } |
jlaskey@3 | 73 | |
jlaskey@3 | 74 | return false; |
jlaskey@3 | 75 | } |
jlaskey@3 | 76 | |
jlaskey@3 | 77 | @Override |
jlaskey@3 | 78 | public int hashCode() { |
jlaskey@3 | 79 | return sobj.hashCode(); |
jlaskey@3 | 80 | } |
jlaskey@3 | 81 | |
sundar@33 | 82 | @Override |
sundar@33 | 83 | public String toString() { |
sundar@33 | 84 | return inGlobal(new Callable<String>() { |
sundar@33 | 85 | @Override |
sundar@33 | 86 | public String call() { |
sundar@33 | 87 | return ScriptRuntime.safeToString(sobj); |
sundar@33 | 88 | } |
sundar@33 | 89 | }); |
sundar@33 | 90 | } |
sundar@33 | 91 | |
jlaskey@3 | 92 | // JSObject methods |
sundar@546 | 93 | |
jlaskey@3 | 94 | @Override |
sundar@546 | 95 | public Object call(final Object thiz, final Object... args) { |
sundar@456 | 96 | final ScriptObject oldGlobal = Context.getGlobal(); |
jlaskey@3 | 97 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 98 | |
sundar@88 | 99 | try { |
sundar@88 | 100 | if (globalChanged) { |
sundar@456 | 101 | Context.setGlobal(global); |
jlaskey@3 | 102 | } |
jlaskey@3 | 103 | |
sundar@546 | 104 | if (sobj instanceof ScriptFunction) { |
sundar@514 | 105 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 106 | final Object self = globalChanged? wrap(thiz, oldGlobal) : thiz; |
sundar@546 | 107 | return wrap(ScriptRuntime.apply((ScriptFunction)sobj, unwrap(self, global), unwrapArray(modArgs, global)), global); |
jlaskey@3 | 108 | } |
jlaskey@3 | 109 | |
sundar@546 | 110 | throw new RuntimeException("not a function: " + toString()); |
sundar@88 | 111 | } catch (final RuntimeException | Error e) { |
sundar@88 | 112 | throw e; |
sundar@88 | 113 | } catch (final Throwable t) { |
sundar@88 | 114 | throw new RuntimeException(t); |
sundar@88 | 115 | } finally { |
sundar@88 | 116 | if (globalChanged) { |
sundar@456 | 117 | Context.setGlobal(oldGlobal); |
sundar@88 | 118 | } |
sundar@88 | 119 | } |
jlaskey@3 | 120 | } |
jlaskey@3 | 121 | |
jlaskey@3 | 122 | @Override |
sundar@546 | 123 | public Object newObject(final Object... args) { |
sundar@456 | 124 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@376 | 125 | final boolean globalChanged = (oldGlobal != global); |
sundar@376 | 126 | |
sundar@376 | 127 | try { |
sundar@376 | 128 | if (globalChanged) { |
sundar@456 | 129 | Context.setGlobal(global); |
sundar@376 | 130 | } |
sundar@376 | 131 | |
sundar@546 | 132 | if (sobj instanceof ScriptFunction) { |
sundar@514 | 133 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 134 | return wrap(ScriptRuntime.construct((ScriptFunction)sobj, unwrapArray(modArgs, global)), global); |
sundar@376 | 135 | } |
sundar@376 | 136 | |
sundar@546 | 137 | throw new RuntimeException("not a constructor: " + toString()); |
sundar@376 | 138 | } catch (final RuntimeException | Error e) { |
sundar@376 | 139 | throw e; |
sundar@376 | 140 | } catch (final Throwable t) { |
sundar@376 | 141 | throw new RuntimeException(t); |
sundar@376 | 142 | } finally { |
sundar@376 | 143 | if (globalChanged) { |
sundar@456 | 144 | Context.setGlobal(oldGlobal); |
sundar@376 | 145 | } |
sundar@376 | 146 | } |
sundar@376 | 147 | } |
sundar@376 | 148 | |
sundar@376 | 149 | @Override |
jlaskey@3 | 150 | public Object eval(final String s) { |
jlaskey@3 | 151 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 152 | @Override |
jlaskey@3 | 153 | public Object call() { |
sundar@41 | 154 | final Context context = AccessController.doPrivileged( |
sundar@41 | 155 | new PrivilegedAction<Context>() { |
sundar@41 | 156 | @Override |
sundar@41 | 157 | public Context run() { |
sundar@41 | 158 | return Context.getContext(); |
sundar@41 | 159 | } |
sundar@492 | 160 | }, GET_CONTEXT_ACC_CTXT); |
sundar@41 | 161 | return wrap(context.eval(global, s, null, null, false), global); |
jlaskey@3 | 162 | } |
jlaskey@3 | 163 | }); |
jlaskey@3 | 164 | } |
jlaskey@3 | 165 | |
sundar@546 | 166 | public Object callMember(final String functionName, final Object... args) { |
sundar@546 | 167 | functionName.getClass(); // null check |
sundar@546 | 168 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@546 | 169 | final boolean globalChanged = (oldGlobal != global); |
sundar@546 | 170 | |
sundar@546 | 171 | try { |
sundar@546 | 172 | if (globalChanged) { |
sundar@546 | 173 | Context.setGlobal(global); |
sundar@546 | 174 | } |
sundar@546 | 175 | |
sundar@546 | 176 | final Object val = sobj.get(functionName); |
sundar@546 | 177 | if (val instanceof ScriptFunction) { |
sundar@546 | 178 | final Object[] modArgs = globalChanged? wrapArray(args, oldGlobal) : args; |
sundar@546 | 179 | return wrap(ScriptRuntime.apply((ScriptFunction)val, sobj, unwrapArray(modArgs, global)), global); |
sundar@546 | 180 | } else if (val instanceof JSObject && ((JSObject)val).isFunction()) { |
sundar@546 | 181 | return ((JSObject)val).call(sobj, args); |
sundar@546 | 182 | } |
sundar@546 | 183 | |
sundar@546 | 184 | throw new NoSuchMethodException("No such function " + functionName); |
sundar@546 | 185 | } catch (final RuntimeException | Error e) { |
sundar@546 | 186 | throw e; |
sundar@546 | 187 | } catch (final Throwable t) { |
sundar@546 | 188 | throw new RuntimeException(t); |
sundar@546 | 189 | } finally { |
sundar@546 | 190 | if (globalChanged) { |
sundar@546 | 191 | Context.setGlobal(oldGlobal); |
sundar@546 | 192 | } |
sundar@546 | 193 | } |
sundar@546 | 194 | } |
sundar@546 | 195 | |
sundar@546 | 196 | @Override |
jlaskey@3 | 197 | public Object getMember(final String name) { |
sundar@546 | 198 | name.getClass(); |
sundar@38 | 199 | return inGlobal(new Callable<Object>() { |
sundar@38 | 200 | @Override public Object call() { |
sundar@38 | 201 | return wrap(sobj.get(name), global); |
sundar@38 | 202 | } |
sundar@38 | 203 | }); |
jlaskey@3 | 204 | } |
jlaskey@3 | 205 | |
jlaskey@3 | 206 | @Override |
jlaskey@3 | 207 | public Object getSlot(final int index) { |
sundar@38 | 208 | return inGlobal(new Callable<Object>() { |
sundar@38 | 209 | @Override public Object call() { |
sundar@38 | 210 | return wrap(sobj.get(index), global); |
sundar@38 | 211 | } |
sundar@38 | 212 | }); |
jlaskey@3 | 213 | } |
jlaskey@3 | 214 | |
jlaskey@3 | 215 | @Override |
sundar@546 | 216 | public boolean hasMember(final String name) { |
sundar@546 | 217 | name.getClass(); |
sundar@546 | 218 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 219 | @Override public Boolean call() { |
sundar@546 | 220 | return sobj.has(name); |
sundar@546 | 221 | } |
sundar@546 | 222 | }); |
sundar@546 | 223 | } |
sundar@546 | 224 | |
sundar@546 | 225 | @Override |
sundar@546 | 226 | public boolean hasSlot(final int slot) { |
sundar@546 | 227 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 228 | @Override public Boolean call() { |
sundar@546 | 229 | return sobj.has(slot); |
sundar@546 | 230 | } |
sundar@546 | 231 | }); |
sundar@546 | 232 | } |
sundar@546 | 233 | |
sundar@546 | 234 | @Override |
jlaskey@3 | 235 | public void removeMember(final String name) { |
sundar@546 | 236 | name.getClass(); |
jlaskey@3 | 237 | remove(name); |
jlaskey@3 | 238 | } |
jlaskey@3 | 239 | |
jlaskey@3 | 240 | @Override |
jlaskey@3 | 241 | public void setMember(final String name, final Object value) { |
sundar@546 | 242 | name.getClass(); |
sundar@88 | 243 | put(name, value); |
jlaskey@3 | 244 | } |
jlaskey@3 | 245 | |
jlaskey@3 | 246 | @Override |
jlaskey@3 | 247 | public void setSlot(final int index, final Object value) { |
sundar@38 | 248 | inGlobal(new Callable<Void>() { |
sundar@38 | 249 | @Override public Void call() { |
sundar@541 | 250 | sobj.set(index, unwrap(value, global), strict); |
sundar@38 | 251 | return null; |
sundar@38 | 252 | } |
sundar@38 | 253 | }); |
jlaskey@3 | 254 | } |
jlaskey@3 | 255 | |
sundar@546 | 256 | @Override |
sundar@546 | 257 | public boolean isInstance(final Object obj) { |
sundar@546 | 258 | if (! (obj instanceof ScriptObjectMirror)) { |
sundar@546 | 259 | return false; |
sundar@546 | 260 | } |
sundar@546 | 261 | |
sundar@546 | 262 | final ScriptObjectMirror instance = (ScriptObjectMirror)obj; |
sundar@546 | 263 | // if not belongs to my global scope, return false |
sundar@546 | 264 | if (global != instance.global) { |
sundar@546 | 265 | return false; |
sundar@546 | 266 | } |
sundar@546 | 267 | |
sundar@546 | 268 | return inGlobal(new Callable<Boolean>() { |
sundar@546 | 269 | @Override public Boolean call() { |
sundar@546 | 270 | return sobj.isInstance(instance.sobj); |
sundar@546 | 271 | } |
sundar@546 | 272 | }); |
sundar@546 | 273 | } |
sundar@546 | 274 | |
sundar@546 | 275 | @Override |
sundar@546 | 276 | public String getClassName() { |
sundar@546 | 277 | return sobj.getClassName(); |
sundar@546 | 278 | } |
sundar@546 | 279 | |
sundar@546 | 280 | @Override |
sundar@546 | 281 | public boolean isFunction() { |
sundar@546 | 282 | return sobj instanceof ScriptFunction; |
sundar@546 | 283 | } |
sundar@546 | 284 | |
sundar@546 | 285 | @Override |
sundar@546 | 286 | public boolean isStrictFunction() { |
sundar@546 | 287 | return isFunction() && ((ScriptFunction)sobj).isStrict(); |
sundar@546 | 288 | } |
sundar@546 | 289 | |
sundar@546 | 290 | @Override |
sundar@546 | 291 | public boolean isArray() { |
sundar@546 | 292 | return sobj.isArray(); |
sundar@546 | 293 | } |
sundar@546 | 294 | |
sundar@437 | 295 | // javax.script.Bindings methods |
sundar@437 | 296 | |
jlaskey@3 | 297 | @Override |
jlaskey@3 | 298 | public void clear() { |
jlaskey@3 | 299 | inGlobal(new Callable<Object>() { |
jlaskey@3 | 300 | @Override public Object call() { |
sundar@541 | 301 | sobj.clear(strict); |
jlaskey@3 | 302 | return null; |
sundar@38 | 303 | } |
sundar@38 | 304 | }); |
jlaskey@3 | 305 | } |
jlaskey@3 | 306 | |
jlaskey@3 | 307 | @Override |
jlaskey@3 | 308 | public boolean containsKey(final Object key) { |
jlaskey@3 | 309 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 310 | @Override public Boolean call() { |
jlaskey@3 | 311 | return sobj.containsKey(unwrap(key, global)); |
sundar@38 | 312 | } |
sundar@38 | 313 | }); |
jlaskey@3 | 314 | } |
jlaskey@3 | 315 | |
jlaskey@3 | 316 | @Override |
jlaskey@3 | 317 | public boolean containsValue(final Object value) { |
jlaskey@3 | 318 | return inGlobal(new Callable<Boolean>() { |
jlaskey@3 | 319 | @Override public Boolean call() { |
jlaskey@3 | 320 | return sobj.containsValue(unwrap(value, global)); |
sundar@38 | 321 | } |
sundar@38 | 322 | }); |
jlaskey@3 | 323 | } |
jlaskey@3 | 324 | |
jlaskey@3 | 325 | @Override |
sundar@38 | 326 | public Set<Map.Entry<String, Object>> entrySet() { |
sundar@38 | 327 | return inGlobal(new Callable<Set<Map.Entry<String, Object>>>() { |
sundar@38 | 328 | @Override public Set<Map.Entry<String, Object>> call() { |
jlaskey@3 | 329 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 330 | final Set<Map.Entry<String, Object>> entries = new LinkedHashSet<>(); |
jlaskey@3 | 331 | |
jlaskey@3 | 332 | while (iter.hasNext()) { |
sundar@38 | 333 | final String key = iter.next(); |
sundar@38 | 334 | final Object value = translateUndefined(wrap(sobj.get(key), global)); |
jlaskey@3 | 335 | entries.add(new AbstractMap.SimpleImmutableEntry<>(key, value)); |
jlaskey@3 | 336 | } |
jlaskey@3 | 337 | |
jlaskey@3 | 338 | return Collections.unmodifiableSet(entries); |
jlaskey@3 | 339 | } |
jlaskey@3 | 340 | }); |
jlaskey@3 | 341 | } |
jlaskey@3 | 342 | |
jlaskey@3 | 343 | @Override |
jlaskey@3 | 344 | public Object get(final Object key) { |
sundar@38 | 345 | return inGlobal(new Callable<Object>() { |
sundar@38 | 346 | @Override public Object call() { |
sundar@38 | 347 | return translateUndefined(wrap(sobj.get(key), global)); |
sundar@38 | 348 | } |
sundar@38 | 349 | }); |
jlaskey@3 | 350 | } |
jlaskey@3 | 351 | |
jlaskey@3 | 352 | @Override |
jlaskey@3 | 353 | public boolean isEmpty() { |
sundar@38 | 354 | return inGlobal(new Callable<Boolean>() { |
sundar@38 | 355 | @Override public Boolean call() { |
sundar@38 | 356 | return sobj.isEmpty(); |
sundar@38 | 357 | } |
sundar@38 | 358 | }); |
jlaskey@3 | 359 | } |
jlaskey@3 | 360 | |
jlaskey@3 | 361 | @Override |
sundar@38 | 362 | public Set<String> keySet() { |
sundar@38 | 363 | return inGlobal(new Callable<Set<String>>() { |
sundar@38 | 364 | @Override public Set<String> call() { |
sundar@38 | 365 | final Iterator<String> iter = sobj.propertyIterator(); |
sundar@321 | 366 | final Set<String> keySet = new LinkedHashSet<>(); |
jlaskey@3 | 367 | |
sundar@38 | 368 | while (iter.hasNext()) { |
sundar@38 | 369 | keySet.add(iter.next()); |
sundar@38 | 370 | } |
sundar@38 | 371 | |
sundar@38 | 372 | return Collections.unmodifiableSet(keySet); |
jlaskey@3 | 373 | } |
sundar@38 | 374 | }); |
jlaskey@3 | 375 | } |
jlaskey@3 | 376 | |
jlaskey@3 | 377 | @Override |
sundar@38 | 378 | public Object put(final String key, final Object value) { |
sundar@456 | 379 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@88 | 380 | final boolean globalChanged = (oldGlobal != global); |
jlaskey@3 | 381 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 382 | @Override public Object call() { |
sundar@88 | 383 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@541 | 384 | return translateUndefined(wrap(sobj.put(key, unwrap(modValue, global), strict), global)); |
sundar@38 | 385 | } |
sundar@38 | 386 | }); |
jlaskey@3 | 387 | } |
jlaskey@3 | 388 | |
jlaskey@3 | 389 | @Override |
sundar@38 | 390 | public void putAll(final Map<? extends String, ? extends Object> map) { |
sundar@456 | 391 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@88 | 392 | final boolean globalChanged = (oldGlobal != global); |
sundar@38 | 393 | inGlobal(new Callable<Object>() { |
sundar@38 | 394 | @Override public Object call() { |
sundar@38 | 395 | for (final Map.Entry<? extends String, ? extends Object> entry : map.entrySet()) { |
sundar@88 | 396 | final Object value = entry.getValue(); |
sundar@88 | 397 | final Object modValue = globalChanged? wrap(value, oldGlobal) : value; |
sundar@88 | 398 | sobj.set(entry.getKey(), unwrap(modValue, global), strict); |
sundar@38 | 399 | } |
sundar@38 | 400 | return null; |
jlaskey@3 | 401 | } |
sundar@38 | 402 | }); |
jlaskey@3 | 403 | } |
jlaskey@3 | 404 | |
jlaskey@3 | 405 | @Override |
jlaskey@3 | 406 | public Object remove(final Object key) { |
jlaskey@3 | 407 | return inGlobal(new Callable<Object>() { |
jlaskey@3 | 408 | @Override public Object call() { |
sundar@541 | 409 | return wrap(sobj.remove(unwrap(key, global), strict), global); |
jlaskey@3 | 410 | } |
jlaskey@3 | 411 | }); |
jlaskey@3 | 412 | } |
jlaskey@3 | 413 | |
sundar@321 | 414 | /** |
sundar@321 | 415 | * Delete a property from this object. |
sundar@321 | 416 | * |
sundar@321 | 417 | * @param key the property to be deleted |
sundar@321 | 418 | * |
sundar@321 | 419 | * @return if the delete was successful or not |
sundar@321 | 420 | */ |
sundar@321 | 421 | public boolean delete(final Object key) { |
sundar@321 | 422 | return inGlobal(new Callable<Boolean>() { |
sundar@321 | 423 | @Override public Boolean call() { |
sundar@541 | 424 | return sobj.delete(unwrap(key, global), strict); |
sundar@321 | 425 | } |
sundar@321 | 426 | }); |
sundar@321 | 427 | } |
sundar@321 | 428 | |
jlaskey@3 | 429 | @Override |
jlaskey@3 | 430 | public int size() { |
jlaskey@3 | 431 | return inGlobal(new Callable<Integer>() { |
jlaskey@3 | 432 | @Override public Integer call() { |
jlaskey@3 | 433 | return sobj.size(); |
jlaskey@3 | 434 | } |
jlaskey@3 | 435 | }); |
jlaskey@3 | 436 | } |
jlaskey@3 | 437 | |
jlaskey@3 | 438 | @Override |
jlaskey@3 | 439 | public Collection<Object> values() { |
sundar@38 | 440 | return inGlobal(new Callable<Collection<Object>>() { |
sundar@38 | 441 | @Override public Collection<Object> call() { |
sundar@38 | 442 | final List<Object> values = new ArrayList<>(size()); |
sundar@38 | 443 | final Iterator<Object> iter = sobj.valueIterator(); |
jlaskey@3 | 444 | |
sundar@38 | 445 | while (iter.hasNext()) { |
sundar@88 | 446 | values.add(translateUndefined(wrap(iter.next(), global))); |
sundar@38 | 447 | } |
sundar@38 | 448 | |
sundar@38 | 449 | return Collections.unmodifiableList(values); |
jlaskey@3 | 450 | } |
sundar@38 | 451 | }); |
sundar@38 | 452 | } |
jlaskey@3 | 453 | |
sundar@350 | 454 | // Support for ECMAScript Object API on mirrors |
sundar@350 | 455 | |
sundar@350 | 456 | /** |
sundar@350 | 457 | * Return the __proto__ of this object. |
sundar@350 | 458 | * @return __proto__ object. |
sundar@350 | 459 | */ |
sundar@350 | 460 | public Object getProto() { |
sundar@350 | 461 | return inGlobal(new Callable<Object>() { |
sundar@350 | 462 | @Override public Object call() { |
sundar@437 | 463 | return wrap(sobj.getProto(), global); |
sundar@350 | 464 | } |
sundar@350 | 465 | }); |
sundar@350 | 466 | } |
sundar@350 | 467 | |
sundar@350 | 468 | /** |
sundar@513 | 469 | * Set the __proto__ of this object. |
sundar@513 | 470 | * @param proto new proto for this object |
sundar@513 | 471 | */ |
sundar@513 | 472 | public void setProto(final Object proto) { |
sundar@513 | 473 | inGlobal(new Callable<Void>() { |
sundar@513 | 474 | @Override public Void call() { |
sundar@513 | 475 | sobj.setProtoCheck(unwrap(proto, global)); |
sundar@513 | 476 | return null; |
sundar@513 | 477 | } |
sundar@513 | 478 | }); |
sundar@513 | 479 | } |
sundar@513 | 480 | |
sundar@513 | 481 | /** |
sundar@350 | 482 | * ECMA 8.12.1 [[GetOwnProperty]] (P) |
sundar@350 | 483 | * |
sundar@350 | 484 | * @param key property key |
sundar@350 | 485 | * |
sundar@350 | 486 | * @return Returns the Property Descriptor of the named own property of this |
sundar@350 | 487 | * object, or undefined if absent. |
sundar@350 | 488 | */ |
sundar@350 | 489 | public Object getOwnPropertyDescriptor(final String key) { |
sundar@350 | 490 | return inGlobal(new Callable<Object>() { |
sundar@350 | 491 | @Override public Object call() { |
sundar@437 | 492 | return wrap(sobj.getOwnPropertyDescriptor(key), global); |
sundar@350 | 493 | } |
sundar@350 | 494 | }); |
sundar@350 | 495 | } |
sundar@350 | 496 | |
sundar@350 | 497 | /** |
sundar@350 | 498 | * return an array of own property keys associated with the object. |
sundar@350 | 499 | * |
sundar@350 | 500 | * @param all True if to include non-enumerable keys. |
sundar@350 | 501 | * @return Array of keys. |
sundar@350 | 502 | */ |
sundar@350 | 503 | public String[] getOwnKeys(final boolean all) { |
sundar@350 | 504 | return inGlobal(new Callable<String[]>() { |
sundar@350 | 505 | @Override public String[] call() { |
sundar@437 | 506 | return sobj.getOwnKeys(all); |
sundar@350 | 507 | } |
sundar@350 | 508 | }); |
sundar@350 | 509 | } |
sundar@350 | 510 | |
sundar@350 | 511 | /** |
sundar@350 | 512 | * Flag this script object as non extensible |
sundar@350 | 513 | * |
sundar@350 | 514 | * @return the object after being made non extensible |
sundar@350 | 515 | */ |
sundar@350 | 516 | public ScriptObjectMirror preventExtensions() { |
sundar@350 | 517 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 518 | @Override public ScriptObjectMirror call() { |
sundar@437 | 519 | sobj.preventExtensions(); |
sundar@350 | 520 | return ScriptObjectMirror.this; |
sundar@350 | 521 | } |
sundar@350 | 522 | }); |
sundar@350 | 523 | } |
sundar@350 | 524 | |
sundar@350 | 525 | /** |
sundar@350 | 526 | * Check if this script object is extensible |
sundar@350 | 527 | * @return true if extensible |
sundar@350 | 528 | */ |
sundar@350 | 529 | public boolean isExtensible() { |
sundar@350 | 530 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 531 | @Override public Boolean call() { |
sundar@437 | 532 | return sobj.isExtensible(); |
sundar@350 | 533 | } |
sundar@350 | 534 | }); |
sundar@350 | 535 | } |
sundar@350 | 536 | |
sundar@350 | 537 | /** |
sundar@350 | 538 | * ECMAScript 15.2.3.8 - seal implementation |
sundar@350 | 539 | * @return the sealed script object |
sundar@350 | 540 | */ |
sundar@350 | 541 | public ScriptObjectMirror seal() { |
sundar@350 | 542 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 543 | @Override public ScriptObjectMirror call() { |
sundar@437 | 544 | sobj.seal(); |
sundar@350 | 545 | return ScriptObjectMirror.this; |
sundar@350 | 546 | } |
sundar@350 | 547 | }); |
sundar@350 | 548 | } |
sundar@350 | 549 | |
sundar@350 | 550 | /** |
sundar@350 | 551 | * Check whether this script object is sealed |
sundar@350 | 552 | * @return true if sealed |
sundar@350 | 553 | */ |
sundar@350 | 554 | public boolean isSealed() { |
sundar@350 | 555 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 556 | @Override public Boolean call() { |
sundar@437 | 557 | return sobj.isSealed(); |
sundar@350 | 558 | } |
sundar@350 | 559 | }); |
sundar@350 | 560 | } |
sundar@350 | 561 | |
sundar@350 | 562 | /** |
sundar@350 | 563 | * ECMA 15.2.39 - freeze implementation. Freeze this script object |
sundar@350 | 564 | * @return the frozen script object |
sundar@350 | 565 | */ |
sundar@350 | 566 | public ScriptObjectMirror freeze() { |
sundar@350 | 567 | return inGlobal(new Callable<ScriptObjectMirror>() { |
sundar@350 | 568 | @Override public ScriptObjectMirror call() { |
sundar@437 | 569 | sobj.freeze(); |
sundar@350 | 570 | return ScriptObjectMirror.this; |
sundar@350 | 571 | } |
sundar@350 | 572 | }); |
sundar@350 | 573 | } |
sundar@350 | 574 | |
sundar@350 | 575 | /** |
sundar@350 | 576 | * Check whether this script object is frozen |
sundar@350 | 577 | * @return true if frozen |
sundar@350 | 578 | */ |
sundar@350 | 579 | public boolean isFrozen() { |
sundar@350 | 580 | return inGlobal(new Callable<Boolean>() { |
sundar@350 | 581 | @Override public Boolean call() { |
sundar@437 | 582 | return sobj.isFrozen(); |
sundar@350 | 583 | } |
sundar@350 | 584 | }); |
sundar@350 | 585 | } |
sundar@350 | 586 | |
sundar@437 | 587 | /** |
sundar@350 | 588 | * Utility to check if given object is ECMAScript undefined value |
sundar@350 | 589 | * |
sundar@350 | 590 | * @param obj object to check |
sundar@350 | 591 | * @return true if 'obj' is ECMAScript undefined value |
sundar@350 | 592 | */ |
sundar@350 | 593 | public static boolean isUndefined(final Object obj) { |
sundar@350 | 594 | return obj == ScriptRuntime.UNDEFINED; |
sundar@350 | 595 | } |
sundar@350 | 596 | |
sundar@350 | 597 | /** |
attila@663 | 598 | * Make a script object mirror on given object if needed. Also converts ConsString instances to Strings. |
sundar@322 | 599 | * |
attila@663 | 600 | * @param obj object to be wrapped/converted |
attila@663 | 601 | * @param homeGlobal global to which this object belongs. Not used for ConsStrings. |
attila@663 | 602 | * @return wrapped/converted object |
sundar@322 | 603 | */ |
sundar@665 | 604 | public static Object wrap(final Object obj, final Object homeGlobal) { |
attila@663 | 605 | if(obj instanceof ScriptObject) { |
sundar@665 | 606 | return homeGlobal instanceof ScriptObject ? new ScriptObjectMirror((ScriptObject)obj, (ScriptObject)homeGlobal) : obj; |
attila@663 | 607 | } |
attila@663 | 608 | if(obj instanceof ConsString) { |
attila@663 | 609 | return obj.toString(); |
attila@663 | 610 | } |
attila@663 | 611 | return obj; |
jlaskey@3 | 612 | } |
jlaskey@3 | 613 | |
sundar@322 | 614 | /** |
sundar@322 | 615 | * Unwrap a script object mirror if needed. |
sundar@322 | 616 | * |
sundar@322 | 617 | * @param obj object to be unwrapped |
sundar@322 | 618 | * @param homeGlobal global to which this object belongs |
sundar@322 | 619 | * @return unwrapped object |
sundar@322 | 620 | */ |
sundar@665 | 621 | public static Object unwrap(final Object obj, final Object homeGlobal) { |
jlaskey@3 | 622 | if (obj instanceof ScriptObjectMirror) { |
jlaskey@3 | 623 | final ScriptObjectMirror mirror = (ScriptObjectMirror)obj; |
jlaskey@3 | 624 | return (mirror.global == homeGlobal)? mirror.sobj : obj; |
jlaskey@3 | 625 | } |
jlaskey@3 | 626 | |
jlaskey@3 | 627 | return obj; |
jlaskey@3 | 628 | } |
jlaskey@3 | 629 | |
sundar@322 | 630 | /** |
sundar@322 | 631 | * Wrap an array of object to script object mirrors if needed. |
sundar@322 | 632 | * |
sundar@322 | 633 | * @param args array to be unwrapped |
sundar@322 | 634 | * @param homeGlobal global to which this object belongs |
sundar@322 | 635 | * @return wrapped array |
sundar@322 | 636 | */ |
sundar@665 | 637 | public static Object[] wrapArray(final Object[] args, final Object homeGlobal) { |
jlaskey@3 | 638 | if (args == null || args.length == 0) { |
jlaskey@3 | 639 | return args; |
jlaskey@3 | 640 | } |
jlaskey@3 | 641 | |
jlaskey@3 | 642 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 643 | int index = 0; |
jlaskey@3 | 644 | for (final Object obj : args) { |
jlaskey@3 | 645 | newArgs[index] = wrap(obj, homeGlobal); |
jlaskey@3 | 646 | index++; |
jlaskey@3 | 647 | } |
jlaskey@3 | 648 | return newArgs; |
jlaskey@3 | 649 | } |
jlaskey@3 | 650 | |
sundar@322 | 651 | /** |
sundar@322 | 652 | * Unwrap an array of script object mirrors if needed. |
sundar@322 | 653 | * |
sundar@322 | 654 | * @param args array to be unwrapped |
sundar@322 | 655 | * @param homeGlobal global to which this object belongs |
sundar@322 | 656 | * @return unwrapped array |
sundar@322 | 657 | */ |
sundar@665 | 658 | public static Object[] unwrapArray(final Object[] args, final Object homeGlobal) { |
jlaskey@3 | 659 | if (args == null || args.length == 0) { |
jlaskey@3 | 660 | return args; |
jlaskey@3 | 661 | } |
jlaskey@3 | 662 | |
jlaskey@3 | 663 | final Object[] newArgs = new Object[args.length]; |
jlaskey@3 | 664 | int index = 0; |
jlaskey@3 | 665 | for (final Object obj : args) { |
jlaskey@3 | 666 | newArgs[index] = unwrap(obj, homeGlobal); |
jlaskey@3 | 667 | index++; |
jlaskey@3 | 668 | } |
jlaskey@3 | 669 | return newArgs; |
jlaskey@3 | 670 | } |
sundar@322 | 671 | |
sundar@322 | 672 | // package-privates below this. |
sundar@437 | 673 | |
sundar@437 | 674 | ScriptObjectMirror(final ScriptObject sobj, final ScriptObject global) { |
sundar@472 | 675 | assert sobj != null : "ScriptObjectMirror on null!"; |
sundar@541 | 676 | assert global instanceof GlobalObject : "global is not a GlobalObject"; |
sundar@472 | 677 | |
sundar@437 | 678 | this.sobj = sobj; |
sundar@437 | 679 | this.global = global; |
sundar@541 | 680 | this.strict = ((GlobalObject)global).isStrictContext(); |
sundar@437 | 681 | } |
sundar@437 | 682 | |
sundar@472 | 683 | // accessors for script engine |
sundar@322 | 684 | ScriptObject getScriptObject() { |
sundar@322 | 685 | return sobj; |
sundar@322 | 686 | } |
sundar@322 | 687 | |
sundar@472 | 688 | ScriptObject getHomeGlobal() { |
sundar@472 | 689 | return global; |
sundar@472 | 690 | } |
sundar@472 | 691 | |
sundar@322 | 692 | static Object translateUndefined(Object obj) { |
sundar@322 | 693 | return (obj == ScriptRuntime.UNDEFINED)? null : obj; |
sundar@322 | 694 | } |
sundar@437 | 695 | |
sundar@437 | 696 | // internals only below this. |
sundar@437 | 697 | private <V> V inGlobal(final Callable<V> callable) { |
sundar@456 | 698 | final ScriptObject oldGlobal = Context.getGlobal(); |
sundar@437 | 699 | final boolean globalChanged = (oldGlobal != global); |
sundar@437 | 700 | if (globalChanged) { |
sundar@456 | 701 | Context.setGlobal(global); |
sundar@437 | 702 | } |
sundar@437 | 703 | try { |
sundar@437 | 704 | return callable.call(); |
sundar@437 | 705 | } catch (final RuntimeException e) { |
sundar@437 | 706 | throw e; |
sundar@437 | 707 | } catch (final Exception e) { |
sundar@437 | 708 | throw new AssertionError("Cannot happen", e); |
sundar@437 | 709 | } finally { |
sundar@437 | 710 | if (globalChanged) { |
sundar@456 | 711 | Context.setGlobal(oldGlobal); |
sundar@437 | 712 | } |
sundar@437 | 713 | } |
sundar@437 | 714 | } |
attila@644 | 715 | |
attila@645 | 716 | @Override |
attila@644 | 717 | public double toNumber() { |
attila@644 | 718 | return inGlobal(new Callable<Double>() { |
attila@644 | 719 | @Override public Double call() { |
attila@644 | 720 | return JSType.toNumber(sobj); |
attila@644 | 721 | } |
attila@644 | 722 | }); |
attila@644 | 723 | } |
jlaskey@3 | 724 | } |