/** * Fall back if a function property is not found. * @param desc The call site descriptor * @param request the link request * @return GuardedInvocation to be invoked at call site. */ public GuardedInvocation noSuchMethod(final CallSiteDescriptor desc, final LinkRequest request) { final String name = desc.getNameToken(2); final FindProperty find = findProperty(NO_SUCH_METHOD_NAME, true); final boolean scopeCall = isScope() && NashornCallSiteDescriptor.isScope(desc); if (find == null) { return noSuchProperty(desc, request); } final Object value = getObjectValue(find); if (! (value instanceof ScriptFunction)) { return createEmptyGetter(desc, name); } final ScriptFunction func = (ScriptFunction)value; final Object thiz = scopeCall && func.isStrict() ? ScriptRuntime.UNDEFINED : this; // TODO: It'd be awesome if we could bind "name" without binding "this". return new GuardedInvocation(MH.dropArguments(MH.constant(ScriptFunction.class, func.makeBoundFunction(thiz, new Object[] { name })), 0, Object.class), null, NashornGuards.getMapGuard(getMap())); }
@Override protected GuardedInvocation findGetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { final Object self = request.getReceiver(); final Class<?> returnType = desc.getMethodType().returnType(); if (returnType == Object.class && (self instanceof String || self instanceof ConsString)) { try { return new GuardedInvocation(MH.findStatic(MethodHandles.lookup(), NativeString.class, "get", desc.getMethodType()), NashornGuards.getInstanceOf2Guard(String.class, ConsString.class)); } catch (final LookupException e) { //empty. Shouldn't happen. Fall back to super } } return super.findGetIndexMethod(desc, request); }
/** * Fall back if a function property is not found. * @param desc The call site descriptor * @param request the link request * @return GuardedInvocation to be invoked at call site. */ public GuardedInvocation noSuchMethod(final CallSiteDescriptor desc, final LinkRequest request) { final String name = desc.getNameToken(2); final FindProperty find = findProperty(NO_SUCH_METHOD_NAME, true); final boolean scopeCall = isScope() && NashornCallSiteDescriptor.isScope(desc); if (find == null) { return noSuchProperty(desc, request); } final boolean explicitInstanceOfCheck = explicitInstanceOfCheck(desc, request); final Object value = find.getObjectValue(); if (!(value instanceof ScriptFunction)) { return createEmptyGetter(desc, explicitInstanceOfCheck, name); } final ScriptFunction func = (ScriptFunction)value; final Object thiz = scopeCall && func.isStrict() ? UNDEFINED : this; // TODO: It'd be awesome if we could bind "name" without binding "this". // Since we're binding this we must use an identity guard here. return new GuardedInvocation( MH.dropArguments( MH.constant( ScriptFunction.class, func.makeBoundFunction(thiz, new Object[] { name })), 0, Object.class), NashornGuards.combineGuards( NashornGuards.getIdentityGuard(this), NashornGuards.getMapGuard(getMap(), true))); }
private GuardedInvocation createEmptyGetter(final CallSiteDescriptor desc, final boolean explicitInstanceOfCheck, final String name) { if (NashornCallSiteDescriptor.isOptimistic(desc)) { throw new UnwarrantedOptimismException(UNDEFINED, NashornCallSiteDescriptor.getProgramPoint(desc), Type.OBJECT); } return new GuardedInvocation(Lookup.emptyGetter(desc.getMethodType().returnType()), NashornGuards.getMapGuard(getMap(), explicitInstanceOfCheck), getProtoSwitchPoint(name, null), explicitInstanceOfCheck ? null : ClassCastException.class); }
private GuardedInvocation fixScopeCallSite(final GuardedInvocation link, final String name, final ScriptObject owner) { final GuardedInvocation newLink = fixReceiverType(link, WITHSCOPEFILTER); final MethodHandle expressionGuard = expressionGuard(name, owner); final MethodHandle filterGuardReceiver = filterGuardReceiver(newLink, WITHSCOPEFILTER); return link.replaceMethods( filterReceiver( newLink.getInvocation(), WITHSCOPEFILTER), NashornGuards.combineGuards( expressionGuard, filterGuardReceiver)); }
/** * Composes from its components an actual guarded invocation that represents the dynamic setter method for the property. * @return the composed guarded invocation that represents the dynamic setter method for the property. */ GuardedInvocation createGuardedInvocation() { // getGuard() and getException() either both return null, or neither does. The reason for that is that now // getGuard returns a map guard that casts its argument to ScriptObject, and if that fails, we need to // relink on ClassCastException. final boolean explicitInstanceOfCheck = NashornGuards.explicitInstanceOfCheck(desc, request); return new GuardedInvocation(methodHandle, NashornGuards.getGuard(sobj, property, desc, explicitInstanceOfCheck), (SwitchPoint)null, explicitInstanceOfCheck ? null : ClassCastException.class); }
@Override protected GuardedInvocation findGetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { final Object self = request.getReceiver(); final Class<?> returnType = desc.getMethodType().returnType(); if (returnType == Object.class && JSType.isString(self)) { try { return new GuardedInvocation(MH.findStatic(MethodHandles.lookup(), NativeString.class, "get", desc.getMethodType()), NashornGuards.getStringGuard()); } catch (final LookupException e) { //empty. Shouldn't happen. Fall back to super } } return super.findGetIndexMethod(desc, request); }
/** * Fall back if a function property is not found. * @param desc The call site descriptor * @param request the link request * @return GuardedInvocation to be invoked at call site. */ public GuardedInvocation noSuchMethod(final CallSiteDescriptor desc, final LinkRequest request) { final String name = NashornCallSiteDescriptor.getOperand(desc); final FindProperty find = findProperty(NO_SUCH_METHOD_NAME, true); final boolean scopeCall = isScope() && NashornCallSiteDescriptor.isScope(desc); if (find == null) { return noSuchProperty(desc, request) // Add proto switchpoint to switch from no-such-property to no-such-method if it is ever defined. .addSwitchPoint(getProtoSwitchPoint(NO_SUCH_METHOD_NAME)); } final boolean explicitInstanceOfCheck = explicitInstanceOfCheck(desc, request); final Object value = find.getObjectValue(); if (!(value instanceof ScriptFunction)) { return createEmptyGetter(desc, explicitInstanceOfCheck, name); } final ScriptFunction func = (ScriptFunction)value; final Object thiz = scopeCall && func.isStrict() ? UNDEFINED : this; // TODO: It'd be awesome if we could bind "name" without binding "this". // Since we're binding this we must use an identity guard here. return new GuardedInvocation( MH.dropArguments( MH.constant( ScriptFunction.class, func.createBound(thiz, new Object[] { name })), 0, Object.class), NashornGuards.combineGuards( NashornGuards.getIdentityGuard(this), NashornGuards.getMapGuard(getMap(), true))) // Add a protoype switchpoint for the original name so this gets invalidated if it is ever defined. .addSwitchPoint(getProtoSwitchPoint(name)); }
private GuardedInvocation createEmptyGetter(final CallSiteDescriptor desc, final boolean explicitInstanceOfCheck, final String name) { if (NashornCallSiteDescriptor.isOptimistic(desc)) { throw new UnwarrantedOptimismException(UNDEFINED, NashornCallSiteDescriptor.getProgramPoint(desc), Type.OBJECT); } return new GuardedInvocation(Lookup.emptyGetter(desc.getMethodType().returnType()), NashornGuards.getMapGuard(getMap(), explicitInstanceOfCheck), getProtoSwitchPoints(name, null), explicitInstanceOfCheck ? null : ClassCastException.class); }
private GuardedInvocation fixScopeCallSite(final GuardedInvocation link, final String name, final ScriptObject owner) { final GuardedInvocation newLink = fixReceiverType(link, WITHSCOPEFILTER); final MethodHandle expressionGuard = expressionGuard(name, owner); final MethodHandle filteredGuard = filterGuardReceiver(newLink, WITHSCOPEFILTER); return link.replaceMethods( filterReceiver( newLink.getInvocation(), WITHSCOPEFILTER), NashornGuards.combineGuards( expressionGuard, filteredGuard)); }
/** * Fall back if a function property is not found. * @param desc The call site descriptor * @param request the link request * @return GuardedInvocation to be invoked at call site. */ public GuardedInvocation noSuchMethod(final CallSiteDescriptor desc, final LinkRequest request) { final String name = NashornCallSiteDescriptor.getOperand(desc); final FindProperty find = findProperty(NO_SUCH_METHOD_NAME, true); final boolean scopeCall = isScope() && NashornCallSiteDescriptor.isScope(desc); if (find == null) { return noSuchProperty(desc, request); } final boolean explicitInstanceOfCheck = explicitInstanceOfCheck(desc, request); final Object value = find.getObjectValue(); if (!(value instanceof ScriptFunction)) { return createEmptyGetter(desc, explicitInstanceOfCheck, name); } final ScriptFunction func = (ScriptFunction)value; final Object thiz = scopeCall && func.isStrict() ? UNDEFINED : this; // TODO: It'd be awesome if we could bind "name" without binding "this". // Since we're binding this we must use an identity guard here. return new GuardedInvocation( MH.dropArguments( MH.constant( ScriptFunction.class, func.createBound(thiz, new Object[] { name })), 0, Object.class), NashornGuards.combineGuards( NashornGuards.getIdentityGuard(this), NashornGuards.getMapGuard(getMap(), true))); }
@Override protected GuardedInvocation findGetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { final Object self = request.getReceiver(); final Class<?> returnType = desc.getMethodType().returnType(); if (returnType == Object.class && JSType.isString(self)) { try { return new GuardedInvocation(MH.findStatic(MethodHandles.lookup(), NativeString.class, "get", desc.getMethodType()), NashornGuards.getInstanceOf2Guard(String.class, ConsString.class)); } catch (final LookupException e) { //empty. Shouldn't happen. Fall back to super } } return super.findGetIndexMethod(desc, request); }
/** * Fall back if a function property is not found. * @param desc The call site descriptor * @param request the link request * @return GuardedInvocation to be invoked at call site. */ public GuardedInvocation noSuchMethod(final CallSiteDescriptor desc, final LinkRequest request) { final String name = desc.getNameToken(2); final FindProperty find = findProperty(NO_SUCH_METHOD_NAME, true); final boolean scopeCall = isScope() && NashornCallSiteDescriptor.isScope(desc); if (find == null) { return noSuchProperty(desc, request); } final boolean explicitInstanceOfCheck = explicitInstanceOfCheck(desc, request); final Object value = find.getObjectValue(); if (!(value instanceof ScriptFunction)) { return createEmptyGetter(desc, explicitInstanceOfCheck, name); } final ScriptFunction func = (ScriptFunction)value; final Object thiz = scopeCall && func.isStrict() ? UNDEFINED : this; // TODO: It'd be awesome if we could bind "name" without binding "this". // Since we're binding this we must use an identity guard here. return new GuardedInvocation( MH.dropArguments( MH.constant( ScriptFunction.class, func.createBound(thiz, new Object[] { name })), 0, Object.class), NashornGuards.combineGuards( NashornGuards.getIdentityGuard(this), NashornGuards.getMapGuard(getMap(), true))); }
@Override protected GuardedInvocation findGetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { final Object self = request.getReceiver(); final Class<?> returnType = desc.getMethodType().returnType(); if (returnType == Object.class && (self instanceof String || self instanceof ConsString)) { try { MethodHandle mh = MH.findStatic(MethodHandles.lookup(), NativeString.class, "get", desc.getMethodType()); return new GuardedInvocation(mh, NashornGuards.getInstanceOf2Guard(String.class, ConsString.class)); } catch (final LookupException e) { // Shouldn't happen. Fall back to super } } return super.findGetIndexMethod(desc, request); }