jdk.nashorn.internal.runtime.FindProperty Java Examples

The following examples show how to use jdk.nashorn.internal.runtime.FindProperty. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: PrimitiveLookup.java From openjdk-jdk9 with GNU General Public License v2.0

6 votes

@SuppressWarnings("unused")
private static void primitiveSetter(final ScriptObject wrappedSelf, final Object self, final Object key,
                                    final boolean strict, final Object value) {
    // See ES5.1 8.7.2 PutValue (V, W)
    final String name = JSType.toString(key);
    final FindProperty find = wrappedSelf.findProperty(name, true);
    if (find == null || !find.getProperty().isAccessorProperty() || !find.getProperty().hasNativeSetter()) {
        if (strict) {
            if (find == null || !find.getProperty().isAccessorProperty()) {
                throw typeError("property.not.writable", name, ScriptRuntime.safeToString(self));
            } else {
                throw typeError("property.has.no.setter", name, ScriptRuntime.safeToString(self));
            }
        }
        return;
    }
    // property found and is a UserAccessorProperty
    find.setValue(value, strict);
}

Example #2

Source File: TypeEvaluator.java From hottub with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #3

Source File: NativeJSAdapter.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request) {
    final String name = NashornCallSiteDescriptor.getOperand(desc);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    if (!NashornCallSiteDescriptor.isMethodFirstOperation(desc)) {
        return findHook(desc, __get__);
    } else {
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunction func = (ScriptFunction)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.createBound(this, new Object[] { name })), 0, Object.class),
                        testJSAdapter(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoints(__call__, find.getOwner()), null);
            }
        }
        throw typeError("no.such.function", name, ScriptRuntime.safeToString(this));
    }
}

Example #4

Source File: Global.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

@Override
protected FindProperty findProperty(final Object key, final boolean deep, final boolean isScope, final ScriptObject start) {
    if (lexicalScope != null && isScope) {
        final FindProperty find = lexicalScope.findProperty(key, false);
        if (find != null) {
            return find;
        }
    }
    return super.findProperty(key, deep, isScope, start);
}

Example #5

Source File: TypeEvaluator.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

private static Type getPropertyType(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }

    final Property property      = find.getProperty();
    final Class<?> propertyClass = property.getType();
    if (propertyClass == null) {
        // propertyClass == null means its value is Undefined. It is probably not initialized yet, so we won't make
        // a type assumption yet.
        return null;
    } else if (propertyClass.isPrimitive()) {
        return Type.typeFor(propertyClass);
    }

    final ScriptObject owner = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Can have side effects, so we can't safely evaluate it; since !propertyClass.isPrimitive(), it's Object.
        return Type.OBJECT;
    }

    // Safely evaluate the property, and return the narrowest type for the actual value (e.g. Type.INT for a boxed
    // integer).
    final Object value = property.needsDeclaration() ? ScriptRuntime.UNDEFINED : property.getObjectValue(owner, owner);
    if (value == ScriptRuntime.UNDEFINED) {
        return null;
    }
    return Type.typeFor(JSType.unboxedFieldType(value));
}

Example #6

Source File: TypeEvaluator.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #7

Source File: NativeJSAdapter.java From hottub with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunction func = (ScriptFunction)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.createBound(this, new Object[] { name })), 0, Object.class),
                        testJSAdaptor(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoints(__call__, find.getOwner()), null);
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #8

Source File: Global.java From hottub with GNU General Public License v2.0

5 votes

@Override
protected FindProperty findProperty(final String key, final boolean deep, final ScriptObject start) {
    if (lexicalScope != null && start != this && start.isScope()) {
        final FindProperty find = lexicalScope.findProperty(key, false);
        if (find != null) {
            return find;
        }
    }
    return super.findProperty(key, deep, start);
}

Example #9

Source File: PrimitiveLookup.java From hottub with GNU General Public License v2.0

5 votes

@SuppressWarnings("unused")
private static void primitiveSetter(final ScriptObject wrappedSelf, final Object self, final Object key,
                                    final boolean strict, final Object value) {
    // See ES5.1 8.7.2 PutValue (V, W)
    final String name = JSType.toString(key);
    final FindProperty find = wrappedSelf.findProperty(name, true);
    if (find == null || !(find.getProperty() instanceof UserAccessorProperty) || !find.getProperty().isWritable()) {
        if (strict) {
            throw typeError("property.not.writable", name, ScriptRuntime.safeToString(self));
        }
        return;
    }
    // property found and is a UserAccessorProperty
    find.setValue(value, strict);
}

Example #10

Source File: TypeEvaluator.java From hottub with GNU General Public License v2.0

5 votes

private static Type getPropertyType(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }

    final Property property      = find.getProperty();
    final Class<?> propertyClass = property.getType();
    if (propertyClass == null) {
        // propertyClass == null means its value is Undefined. It is probably not initialized yet, so we won't make
        // a type assumption yet.
        return null;
    } else if (propertyClass.isPrimitive()) {
        return Type.typeFor(propertyClass);
    }

    final ScriptObject owner = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Can have side effects, so we can't safely evaluate it; since !propertyClass.isPrimitive(), it's Object.
        return Type.OBJECT;
    }

    // Safely evaluate the property, and return the narrowest type for the actual value (e.g. Type.INT for a boxed
    // integer).
    final Object value = property.needsDeclaration() ? ScriptRuntime.UNDEFINED : property.getObjectValue(owner, owner);
    if (value == ScriptRuntime.UNDEFINED) {
        return null;
    }
    return Type.typeFor(JSType.unboxedFieldType(value));
}

Example #11

Source File: TypeEvaluator.java From openjdk-jdk8u-backup with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #12

Source File: NativeJSAdapter.java From openjdk-8-source with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = getObjectValue(find);
            if (value instanceof ScriptFunction) {
                final ScriptFunctionImpl func = (ScriptFunctionImpl)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.makeBoundFunction(this, new Object[] { name })), 0, Object.class),
                        adaptee.getMap().getProtoGetSwitchPoint(adaptee.getProto(), __call__),
                        testJSAdaptor(adaptee, null, null, null));
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #13

Source File: NativeJSAdapter.java From openjdk-8 with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = getObjectValue(find);
            if (value instanceof ScriptFunction) {
                final ScriptFunctionImpl func = (ScriptFunctionImpl)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.makeBoundFunction(this, new Object[] { name })), 0, Object.class),
                        adaptee.getMap().getProtoGetSwitchPoint(adaptee.getProto(), __call__),
                        testJSAdaptor(adaptee, null, null, null));
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #14

Source File: NativeJSAdapter.java From jdk8u_nashorn with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunction func = (ScriptFunction)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.createBound(this, new Object[] { name })), 0, Object.class),
                        testJSAdaptor(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoints(__call__, find.getOwner()), null);
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #15

Source File: Global.java From jdk8u_nashorn with GNU General Public License v2.0

5 votes

@Override
protected FindProperty findProperty(final String key, final boolean deep, final ScriptObject start) {
    if (lexicalScope != null && start != this && start.isScope()) {
        final FindProperty find = lexicalScope.findProperty(key, false);
        if (find != null) {
            return find;
        }
    }
    return super.findProperty(key, deep, start);
}

Example #16

Source File: PrimitiveLookup.java From jdk8u_nashorn with GNU General Public License v2.0

5 votes

@SuppressWarnings("unused")
private static void primitiveSetter(final ScriptObject wrappedSelf, final Object self, final Object key,
                                    final boolean strict, final Object value) {
    // See ES5.1 8.7.2 PutValue (V, W)
    final String name = JSType.toString(key);
    final FindProperty find = wrappedSelf.findProperty(name, true);
    if (find == null || !(find.getProperty() instanceof UserAccessorProperty) || !find.getProperty().isWritable()) {
        if (strict) {
            throw typeError("property.not.writable", name, ScriptRuntime.safeToString(self));
        }
        return;
    }
    // property found and is a UserAccessorProperty
    find.setValue(value, strict);
}

Example #17

Source File: TypeEvaluator.java From jdk8u_nashorn with GNU General Public License v2.0

5 votes

private static Type getPropertyType(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }

    final Property property      = find.getProperty();
    final Class<?> propertyClass = property.getType();
    if (propertyClass == null) {
        // propertyClass == null means its value is Undefined. It is probably not initialized yet, so we won't make
        // a type assumption yet.
        return null;
    } else if (propertyClass.isPrimitive()) {
        return Type.typeFor(propertyClass);
    }

    final ScriptObject owner = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Can have side effects, so we can't safely evaluate it; since !propertyClass.isPrimitive(), it's Object.
        return Type.OBJECT;
    }

    // Safely evaluate the property, and return the narrowest type for the actual value (e.g. Type.INT for a boxed
    // integer).
    final Object value = property.needsDeclaration() ? ScriptRuntime.UNDEFINED : property.getObjectValue(owner, owner);
    if (value == ScriptRuntime.UNDEFINED) {
        return null;
    }
    return Type.typeFor(JSType.unboxedFieldType(value));
}

Example #18

Source File: TypeEvaluator.java From jdk8u_nashorn with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #19

Source File: NativeJSAdapter.java From nashorn with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = getObjectValue(find);
            if (value instanceof ScriptFunction) {
                final ScriptFunctionImpl func = (ScriptFunctionImpl)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.makeBoundFunction(this, new Object[] { name })), 0, Object.class),
                        adaptee.getMap().getProtoGetSwitchPoint(adaptee.getProto(), __call__), testJSAdaptor(adaptee, null, null, null));
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #20

Source File: NativeJSAdapter.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunction func = (ScriptFunction)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.createBound(this, new Object[] { name })), 0, Object.class),
                        testJSAdaptor(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoints(__call__, find.getOwner()), null);
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #21

Source File: Global.java From TencentKona-8 with GNU General Public License v2.0

5 votes

@Override
protected FindProperty findProperty(final String key, final boolean deep, final ScriptObject start) {
    if (lexicalScope != null && start != this && start.isScope()) {
        final FindProperty find = lexicalScope.findProperty(key, false);
        if (find != null) {
            return find;
        }
    }
    return super.findProperty(key, deep, start);
}

Example #22

Source File: PrimitiveLookup.java From TencentKona-8 with GNU General Public License v2.0

5 votes

@SuppressWarnings("unused")
private static void primitiveSetter(final ScriptObject wrappedSelf, final Object self, final Object key,
                                    final boolean strict, final Object value) {
    // See ES5.1 8.7.2 PutValue (V, W)
    final String name = JSType.toString(key);
    final FindProperty find = wrappedSelf.findProperty(name, true);
    if (find == null || !(find.getProperty() instanceof UserAccessorProperty) || !find.getProperty().isWritable()) {
        if (strict) {
            throw typeError("property.not.writable", name, ScriptRuntime.safeToString(self));
        }
        return;
    }
    // property found and is a UserAccessorProperty
    find.setValue(value, strict);
}

Example #23

Source File: TypeEvaluator.java From TencentKona-8 with GNU General Public License v2.0

5 votes

private static Type getPropertyType(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }

    final Property property      = find.getProperty();
    final Class<?> propertyClass = property.getType();
    if (propertyClass == null) {
        // propertyClass == null means its value is Undefined. It is probably not initialized yet, so we won't make
        // a type assumption yet.
        return null;
    } else if (propertyClass.isPrimitive()) {
        return Type.typeFor(propertyClass);
    }

    final ScriptObject owner = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Can have side effects, so we can't safely evaluate it; since !propertyClass.isPrimitive(), it's Object.
        return Type.OBJECT;
    }

    // Safely evaluate the property, and return the narrowest type for the actual value (e.g. Type.INT for a boxed
    // integer).
    final Object value = property.needsDeclaration() ? ScriptRuntime.UNDEFINED : property.getObjectValue(owner, owner);
    if (value == ScriptRuntime.UNDEFINED) {
        return null;
    }
    return Type.typeFor(JSType.unboxedFieldType(value));
}

Example #24

Source File: TypeEvaluator.java From TencentKona-8 with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #25

Source File: NativeJSAdapter.java From jdk8u60 with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunctionImpl func = (ScriptFunctionImpl)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.makeBoundFunction(this, new Object[] { name })), 0, Object.class),
                        testJSAdaptor(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoint(__call__, find.getOwner()));
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}

Example #26

Source File: Global.java From jdk8u60 with GNU General Public License v2.0

5 votes

@Override
protected FindProperty findProperty(final String key, final boolean deep, final ScriptObject start) {
    if (lexicalScope != null && start != this && start.isScope()) {
        final FindProperty find = lexicalScope.findProperty(key, false);
        if (find != null) {
            return find;
        }
    }
    return super.findProperty(key, deep, start);
}

Example #27

Source File: PrimitiveLookup.java From jdk8u60 with GNU General Public License v2.0

5 votes

@SuppressWarnings("unused")
private static void primitiveSetter(final ScriptObject wrappedSelf, final Object self, final Object key,
                                    final boolean strict, final Object value) {
    // See ES5.1 8.7.2 PutValue (V, W)
    final String name = JSType.toString(key);
    final FindProperty find = wrappedSelf.findProperty(name, true);
    if (find == null || !(find.getProperty() instanceof UserAccessorProperty) || !find.getProperty().isWritable()) {
        if (strict) {
            throw typeError("property.not.writable", name, ScriptRuntime.safeToString(self));
        }
        return;
    }
    // property found and is a UserAccessorProperty
    find.setValue(value, strict);
}

Example #28

Source File: TypeEvaluator.java From jdk8u60 with GNU General Public License v2.0

5 votes

private static Type getPropertyType(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }

    final Property property      = find.getProperty();
    final Class<?> propertyClass = property.getType();
    if (propertyClass == null) {
        // propertyClass == null means its value is Undefined. It is probably not initialized yet, so we won't make
        // a type assumption yet.
        return null;
    } else if (propertyClass.isPrimitive()) {
        return Type.typeFor(propertyClass);
    }

    final ScriptObject owner = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Can have side effects, so we can't safely evaluate it; since !propertyClass.isPrimitive(), it's Object.
        return Type.OBJECT;
    }

    // Safely evaluate the property, and return the narrowest type for the actual value (e.g. Type.INT for a boxed
    // integer).
    final Object value = property.needsDeclaration() ? ScriptRuntime.UNDEFINED : property.getObjectValue(owner, owner);
    if (value == ScriptRuntime.UNDEFINED) {
        return null;
    }
    return Type.typeFor(JSType.unboxedFieldType(value));
}

Example #29

Source File: TypeEvaluator.java From jdk8u60 with GNU General Public License v2.0

5 votes

private static Object evaluatePropertySafely(final ScriptObject sobj, final String name) {
    final FindProperty find = sobj.findProperty(name, true);
    if (find == null) {
        return null;
    }
    final Property     property = find.getProperty();
    final ScriptObject owner    = find.getOwner();
    if (property.hasGetterFunction(owner)) {
        // Possible side effects; can't evaluate safely
        return null;
    }
    return property.getObjectValue(owner, owner);
}

Example #30

Source File: NativeJSAdapter.java From TencentKona-8 with GNU General Public License v2.0

5 votes

@Override
protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operation) {
    final String name = desc.getNameToken(CallSiteDescriptor.NAME_OPERAND);
    if (overrides && super.hasOwnProperty(name)) {
        try {
            final GuardedInvocation inv = super.findGetMethod(desc, request, operation);
            if (inv != null) {
                return inv;
            }
        } catch (final Exception e) {
            //ignored
        }
    }

    switch(operation) {
    case "getProp":
    case "getElem":
        return findHook(desc, __get__);
    case "getMethod":
        final FindProperty find = adaptee.findProperty(__call__, true);
        if (find != null) {
            final Object value = find.getObjectValue();
            if (value instanceof ScriptFunction) {
                final ScriptFunction func = (ScriptFunction)value;
                // TODO: It's a shame we need to produce a function bound to this and name, when we'd only need it bound
                // to name. Probably not a big deal, but if we can ever make it leaner, it'd be nice.
                return new GuardedInvocation(MH.dropArguments(MH.constant(Object.class,
                        func.createBound(this, new Object[] { name })), 0, Object.class),
                        testJSAdaptor(adaptee, null, null, null),
                        adaptee.getProtoSwitchPoints(__call__, find.getOwner()), null);
            }
        }
        throw typeError("no.such.function", desc.getNameToken(2), ScriptRuntime.safeToString(this));
    default:
        break;
    }

    throw new AssertionError("should not reach here");
}