jdk.nashorn.internal.runtime.PropertyMap Java Examples

private Object createObject(final PropertyMap propertyMap, final List<Object> values, final ArrayData arrayData) {
    final long[] primitiveSpill = dualFields ? new long[values.size()] : null;
    final Object[] objectSpill = new Object[values.size()];

    for (final Property property : propertyMap.getProperties()) {
        if (!dualFields || property.getType() == Object.class) {
            objectSpill[property.getSlot()] = values.get(property.getSlot());
        } else {
            primitiveSpill[property.getSlot()] = ObjectClassGenerator.pack((Number) values.get(property.getSlot()));
        }
    }

    final ScriptObject object = dualFields ?
            new JD(propertyMap, primitiveSpill, objectSpill) : new JO(propertyMap, null, objectSpill);
    object.setInitialProto(global.getObjectPrototype());
    object.setArray(arrayData);
    return object;
}
 

/**
 * Constructs a property map based on a set of fields.
 *
 * @param hasArguments  does the created object have an "arguments" property
 * @param fieldCount    Number of fields in use.
 * @param fieldMaximum  Number of fields available.
 * @param evalCode      is this property map created for 'eval' code?
 * @return New map populated with accessor properties.
 */
PropertyMap makeFieldMap(final boolean hasArguments, final boolean dualFields, final int fieldCount, final int fieldMaximum, final boolean evalCode) {
    final List<Property> properties = new ArrayList<>();
    assert tuples != null;

    for (final MapTuple<T> tuple : tuples) {
        final String   key         = tuple.key;
        final Symbol   symbol      = tuple.symbol;
        final Class<?> initialType = dualFields ? tuple.getValueType() : Object.class;

        if (symbol != null && !isValidArrayIndex(getArrayIndex(key))) {
            final int      flags    = getPropertyFlags(symbol, hasArguments, evalCode, dualFields);
            final Property property = new AccessorProperty(
                    key,
                    flags,
                    structure,
                    symbol.getFieldIndex(),
                    initialType);
            properties.add(property);
        }
    }

    return PropertyMap.newMap(properties, structure.getName(), fieldCount, fieldMaximum, 0);
}
 

/**
 * Constructs a property map based on a set of fields.
 *
 * @param hasArguments does the created object have an "arguments" property
 * @param fieldCount    Number of fields in use.
 * @param fieldMaximum Number of fields available.
 *
 * @return New map populated with accessor properties.
 */
PropertyMap makeFieldMap(final boolean hasArguments, final int fieldCount, final int fieldMaximum) {
    final List<Property> properties = new ArrayList<>();
    assert keys != null;

    for (int i = 0, length = keys.size(); i < length; i++) {
        final String key    = keys.get(i);
        final Symbol symbol = symbols.get(i);

        if (symbol != null && !isValidArrayIndex(getArrayIndex(key))) {
            properties.add(new AccessorProperty(key, getPropertyFlags(symbol, hasArguments), structure, symbol.getFieldIndex()));
        }
    }

    return PropertyMap.newMap(properties, fieldCount, fieldMaximum, 0);
}
 

NativeStrictArguments(final Object[] values, final int numParams,final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    setIsArguments();

    final ScriptFunction func = Global.instance().getTypeErrorThrower();
    // We have to fill user accessor functions late as these are stored
    // in this object rather than in the PropertyMap of this object.
    final int flags = Property.NOT_ENUMERABLE | Property.NOT_CONFIGURABLE;
    initUserAccessors("caller", flags, func, func);
    initUserAccessors("callee", flags, func, func);

    setArray(ArrayData.allocate(values));
    this.length = values.length;

    // extend/truncate named arg array as needed and copy values
    this.namedArgs = new Object[numParams];
    if (numParams > values.length) {
        Arrays.fill(namedArgs, UNDEFINED);
    }
    System.arraycopy(values, 0, namedArgs, 0, Math.min(namedArgs.length, values.length));
}
 

private Object createObject(final PropertyMap propertyMap, final List<Object> values, final ArrayData arrayData) {
    final long[] primitiveSpill = dualFields ? new long[values.size()] : null;
    final Object[] objectSpill = new Object[values.size()];

    for (final Property property : propertyMap.getProperties()) {
        if (!dualFields || property.getType() == Object.class) {
            objectSpill[property.getSlot()] = values.get(property.getSlot());
        } else {
            primitiveSpill[property.getSlot()] = ObjectClassGenerator.pack((Number) values.get(property.getSlot()));
        }
    }

    final ScriptObject object = dualFields ?
            new JD(propertyMap, primitiveSpill, objectSpill) : new JO(propertyMap, null, objectSpill);
    object.setInitialProto(global.getObjectPrototype());
    object.setArray(arrayData);
    return object;
}
 

/**
 * Constructs a property map based on a set of fields.
 *
 * @param hasArguments  does the created object have an "arguments" property
 * @param fieldCount    Number of fields in use.
 * @param fieldMaximum  Number of fields available.
 * @param evalCode      is this property map created for 'eval' code?
 * @return New map populated with accessor properties.
 */
PropertyMap makeFieldMap(final boolean hasArguments, final boolean dualFields, final int fieldCount, final int fieldMaximum, final boolean evalCode) {
    final List<Property> properties = new ArrayList<>();
    assert tuples != null;

    for (final MapTuple<T> tuple : tuples) {
        final String   key         = tuple.key;
        final Symbol   symbol      = tuple.symbol;
        final Class<?> initialType = dualFields ? tuple.getValueType() : Object.class;

        if (symbol != null && !isValidArrayIndex(getArrayIndex(key))) {
            final int      flags    = getPropertyFlags(symbol, hasArguments, evalCode, dualFields);
            final Property property = new AccessorProperty(
                    key,
                    flags,
                    structure,
                    symbol.getFieldIndex(),
                    initialType);
            properties.add(property);
        }
    }

    return PropertyMap.newMap(properties, structure.getName(), fieldCount, fieldMaximum, 0);
}
 

/**
 * Constructs a property map based on a set of fields.
 *
 * @param hasArguments does the created object have an "arguments" property
 * @param fieldCount    Number of fields in use.
 * @param fieldMaximum Number of fields available.
 *
 * @return New map populated with accessor properties.
 */
PropertyMap makeFieldMap(final boolean hasArguments, final int fieldCount, final int fieldMaximum) {
    final List<Property> properties = new ArrayList<>();
    assert keys != null;

    for (int i = 0, length = keys.size(); i < length; i++) {
        final String key    = keys.get(i);
        final Symbol symbol = symbols.get(i);

        if (symbol != null && !isValidArrayIndex(getArrayIndex(key))) {
            properties.add(new AccessorProperty(key, getPropertyFlags(symbol, hasArguments), structure, symbol.getFieldIndex()));
        }
    }

    return PropertyMap.newMap(properties, fieldCount, fieldMaximum, 0);
}
 

PropertyMap makeSpillMap(final boolean hasArguments, final boolean dualFields) {
    final List<Property> properties = new ArrayList<>();
    int spillIndex = 0;
    assert tuples != null;

    for (final MapTuple<T> tuple : tuples) {
        final String key    = tuple.key;
        final Symbol symbol = tuple.symbol;
        final Class<?> initialType = dualFields ? tuple.getValueType() : Object.class;

        if (symbol != null && !isValidArrayIndex(getArrayIndex(key))) {
            final int flags = getPropertyFlags(symbol, hasArguments, false, dualFields);
            properties.add(
                    new SpillProperty(
                            key,
                            flags,
                            spillIndex++,
                            initialType));
        }
    }

    return PropertyMap.newMap(properties, structure.getName(), 0, 0, spillIndex);
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeRangeError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

/**
 * Add an empty <init> method to the JavaScript class.
 *
 * @param classEmitter Open class emitter.
 * @param className    Name of JavaScript class.
 */
private static void newEmptyInit(final String className, final ClassEmitter classEmitter) {
    final MethodEmitter emptyInit = classEmitter.init();
    emptyInit.begin();
    emptyInit.load(Type.OBJECT, JAVA_THIS.slot());
    emptyInit.loadNull();
    emptyInit.invoke(constructorNoLookup(className, PropertyMap.class));
    emptyInit.returnVoid();
    emptyInit.end();
}
 

/**
 * Load a constant from the constant array. This is only public to be callable from the objects
 * subpackage. Do not call directly.
 *
 * @param object object to load
 */
void loadConstant(final Object object) {
    final String       unitClassName = unit.getUnitClassName();
    final ClassEmitter classEmitter  = unit.getClassEmitter();
    final int          index         = compiler.getConstantData().add(object);
    final Class<?>     cls           = object.getClass();

    if (cls == PropertyMap.class) {
        method.load(index);
        method.invokestatic(unitClassName, GET_MAP.symbolName(), methodDescriptor(PropertyMap.class, int.class));
        classEmitter.needGetConstantMethod(PropertyMap.class);
    } else if (cls.isArray()) {
        method.load(index);
        final String methodName = ClassEmitter.getArrayMethodName(cls);
        method.invokestatic(unitClassName, methodName, methodDescriptor(cls, int.class));
        classEmitter.needGetConstantMethod(cls);
    } else {
        method.loadConstants().load(index).arrayload();
        if (object instanceof ArrayData) {
            // avoid cast to non-public ArrayData subclass
            method.checkcast(ArrayData.class);
            method.invoke(virtualCallNoLookup(ArrayData.class, "copy", ArrayData.class));
        } else if (cls != Object.class) {
            method.checkcast(cls);
        }
    }
}
 

private static MethodEmitter newInitWithSpillArraysMethod(final ClassEmitter classEmitter, final Class<?> superClass) {
    final MethodEmitter init = classEmitter.init(PropertyMap.class, long[].class, Object[].class);
    init.begin();
    init.load(Type.OBJECT, JAVA_THIS.slot());
    init.load(Type.OBJECT, INIT_MAP.slot());
    init.load(Type.LONG_ARRAY, 2);
    init.load(Type.OBJECT_ARRAY, 3);
    init.invoke(constructorNoLookup(superClass, PropertyMap.class, long[].class, Object[].class));

    return init;
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeReferenceError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

@Override
public boolean equals(final Object other) {
    if (!(other instanceof PropertyMapWrapper)) {
        return false;
    }
    final PropertyMap otherMap = ((PropertyMapWrapper) other).propertyMap;
    return propertyMap == otherMap
            || (Arrays.equals(propertyMap.getProperties(), otherMap.getProperties())
                && Objects.equals(propertyMap.getClassName(), otherMap.getClassName()));
}
 

NativeJSAdapter(final Object overrides, final ScriptObject adaptee, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    this.adaptee = wrapAdaptee(adaptee);
    if (overrides instanceof ScriptObject) {
        this.overrides = true;
        final ScriptObject sobj = (ScriptObject)overrides;
        this.addBoundProperties(sobj);
    } else {
        this.overrides = false;
    }
}
 

private static PropertyMap checkAndGetMap(final Context context) {
    // security check first
    final SecurityManager sm = System.getSecurityManager();
    if (sm != null) {
        sm.checkPermission(new RuntimePermission(Context.NASHORN_CREATE_GLOBAL));
    }

    Objects.requireNonNull(context);

    return $nasgenmap$;
}
 

NativeArguments(final Object[] arguments, final Object callee, final int numParams, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    setIsArguments();
    setArray(ArrayData.allocate(arguments));
    this.length = arguments.length;
    this.callee = callee;
    this.numMapped = Math.min(numParams, arguments.length);
    this.numParams = numParams;
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    initException(this);
}
 

/**
 * Allocate and initialize a new <init> method.
 *
 * @param classEmitter  Open class emitter.
 *
 * @return Open method emitter.
 */
private static MethodEmitter newInitMethod(final ClassEmitter classEmitter) {
    final MethodEmitter init = classEmitter.init(PropertyMap.class);
    init.begin();
    init.load(Type.OBJECT, JAVA_THIS.slot());
    init.load(Type.OBJECT, INIT_MAP.slot());
    init.invoke(constructorNoLookup(ScriptObject.class, PropertyMap.class));

    return init;
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeReferenceError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeEvalError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

private static PropertyMap createStrictModeMap(final PropertyMap map) {
    final int flags = Property.NOT_ENUMERABLE | Property.NOT_CONFIGURABLE;
    PropertyMap newMap = map;
    // Need to add properties directly to map since slots are assigned speculatively by newUserAccessors.
    newMap = newMap.addProperty(map.newUserAccessors("arguments", flags));
    newMap = newMap.addProperty(map.newUserAccessors("caller", flags));
    return newMap;
}
 

/**
 * Add an empty <init> method to the JavaScript class.
 *
 * @param classEmitter Open class emitter.
 * @param className    Name of JavaScript class.
 */
private static void newEmptyInit(final ClassEmitter classEmitter, final String className) {
    final MethodEmitter emptyInit = classEmitter.init();
    emptyInit.begin();
    emptyInit.load(Type.OBJECT, JAVA_THIS.slot());
    emptyInit.loadNull();
    emptyInit.invoke(constructorNoLookup(className, PropertyMap.class));
    emptyInit.returnVoid();
    emptyInit.end();
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeEvalError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeReferenceError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

private NativeDate(final double time, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    final ScriptEnvironment env = Global.getEnv();

    this.time = time;
    this.timezone = env._timezone;
}
 

@SuppressWarnings("LeakingThisInConstructor")
private NativeReferenceError(final Object msg, final ScriptObject proto, final PropertyMap map) {
    super(proto, map);
    if (msg != UNDEFINED) {
        this.instMessage = JSType.toString(msg);
    } else {
        this.delete(NativeError.MESSAGE, false);
    }
    NativeError.initException(this);
}
 

/**
 * Add an empty <init> method to the JavaScript class.
 *
 * @param classEmitter Open class emitter.
 * @param className    Name of JavaScript class.
 */
private static void newEmptyInit(final ClassEmitter classEmitter, final String className) {
    final MethodEmitter emptyInit = classEmitter.init();
    emptyInit.begin();
    emptyInit.load(Type.OBJECT, JAVA_THIS.slot());
    emptyInit.loadNull();
    emptyInit.invoke(constructorNoLookup(className, PropertyMap.class));
    emptyInit.returnVoid();
    emptyInit.end();
}
 

/**
 * Add an empty <init> method to the JavaScript class.
 *
 * @param classEmitter Open class emitter.
 * @param className    Name of JavaScript class.
 */
private static void newAllocate(final String className, final ClassEmitter classEmitter) {
    final MethodEmitter allocate = classEmitter.method(EnumSet.of(Flag.PUBLIC, Flag.STATIC), ALLOCATE.symbolName(), ScriptObject.class, PropertyMap.class);
    allocate.begin();
    allocate._new(className, Type.typeFor(ScriptObject.class));
    allocate.dup();
    allocate.load(Type.typeFor(PropertyMap.class), 0);
    allocate.invoke(constructorNoLookup(className, PropertyMap.class));
    allocate._return();
    allocate.end();
}
 

static PropertyMap getInitialMap() {
    return $nasgenmap$;
}