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Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeJavaObject.java')
| -rw-r--r-- | trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeJavaObject.java | 1002 |
1 files changed, 1002 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeJavaObject.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeJavaObject.java new file mode 100644 index 0000000..3d27852 --- /dev/null +++ b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeJavaObject.java @@ -0,0 +1,1002 @@ +/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Rhino code, released + * May 6, 1999. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1997-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Norris Boyd + * Igor Bukanov + * Frank Mitchell + * Mike Shaver + * Kemal Bayram + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License Version 2 or later (the "GPL"), in which + * case the provisions of the GPL are applicable instead of those above. If + * you wish to allow use of your version of this file only under the terms of + * the GPL and not to allow others to use your version of this file under the + * MPL, indicate your decision by deleting the provisions above and replacing + * them with the notice and other provisions required by the GPL. If you do + * not delete the provisions above, a recipient may use your version of this + * file under either the MPL or the GPL. + * + * ***** END LICENSE BLOCK ***** */ + +package org.mozilla.javascript; + +import java.io.*; +import java.lang.reflect.*; +import java.util.Hashtable; +import java.util.Date; + +/** + * This class reflects non-Array Java objects into the JavaScript environment. It + * reflect fields directly, and uses NativeJavaMethod objects to reflect (possibly + * overloaded) methods.<p> + * + * @author Mike Shaver + * @see NativeJavaArray + * @see NativeJavaPackage + * @see NativeJavaClass + */ + +public class NativeJavaObject implements Scriptable, Wrapper, Serializable +{ + static final long serialVersionUID = -6948590651130498591L; + + public NativeJavaObject() { } + + public NativeJavaObject(Scriptable scope, Object javaObject, + Class staticType) + { + this(scope, javaObject, staticType, false); + } + + public NativeJavaObject(Scriptable scope, Object javaObject, + Class staticType, boolean isAdapter) + { + this.parent = ScriptableObject.getVeryTopLevelScope(scope); // APPJET + this.javaObject = javaObject; + this.staticType = staticType; + this.isAdapter = isAdapter; + initMembers(); + } + + protected void initMembers() { + Class dynamicType; + if (javaObject != null) { + dynamicType = javaObject.getClass(); + } else { + dynamicType = staticType; + } + members = JavaMembers.lookupClass(parent, dynamicType, staticType, + isAdapter); + fieldAndMethods + = members.getFieldAndMethodsObjects(this, javaObject, false); + } + + public boolean has(String name, Scriptable start) { + return members.has(name, false); + } + + public boolean has(int index, Scriptable start) { + return false; + } + + public Object get(String name, Scriptable start) { + if (fieldAndMethods != null) { + Object result = fieldAndMethods.get(name); + if (result != null) { + return result; + } + } + // TODO: passing 'this' as the scope is bogus since it has + // no parent scope + return members.get(this, name, javaObject, false); + } + + public Object get(int index, Scriptable start) { + throw members.reportMemberNotFound(Integer.toString(index)); + } + + public void put(String name, Scriptable start, Object value) { + // We could be asked to modify the value of a property in the + // prototype. Since we can't add a property to a Java object, + // we modify it in the prototype rather than copy it down. + if (prototype == null || members.has(name, false)) + members.put(this, name, javaObject, value, false); + else + prototype.put(name, prototype, value); + } + + public void put(int index, Scriptable start, Object value) { + throw members.reportMemberNotFound(Integer.toString(index)); + } + + public boolean hasInstance(Scriptable value) { + // This is an instance of a Java class, so always return false + return false; + } + + public void delete(String name) { + } + + public void delete(int index) { + } + + public Scriptable getPrototype() { + if (prototype == null && javaObject instanceof String) { + return ScriptableObject.getClassPrototype(parent, "String"); + } + return prototype; + } + + /** + * Sets the prototype of the object. + */ + public void setPrototype(Scriptable m) { + prototype = m; + } + + /** + * Returns the parent (enclosing) scope of the object. + */ + public Scriptable getParentScope() { + return parent; + } + + /** + * Sets the parent (enclosing) scope of the object. + */ + public void setParentScope(Scriptable m) { + parent = m; + } + + public Object[] getIds() { + return members.getIds(false); + } + +/** +@deprecated Use {@link Context#getWrapFactory()} together with calling {@link +WrapFactory#wrap(Context, Scriptable, Object, Class)} +*/ + public static Object wrap(Scriptable scope, Object obj, Class staticType) { + + Context cx = Context.getContext(); + return cx.getWrapFactory().wrap(cx, scope, obj, staticType); + } + + public Object unwrap() { + return javaObject; + } + + public String getClassName() { + return "JavaObject"; + } + + public Object getDefaultValue(Class hint) + { + Object value; + if (hint == null) { + if (javaObject instanceof Boolean) { + hint = ScriptRuntime.BooleanClass; + } + } + if (hint == null || hint == ScriptRuntime.StringClass) { + value = javaObject.toString(); + } else { + String converterName; + if (hint == ScriptRuntime.BooleanClass) { + converterName = "booleanValue"; + } else if (hint == ScriptRuntime.NumberClass) { + converterName = "doubleValue"; + } else { + throw Context.reportRuntimeError0("msg.default.value"); + } + Object converterObject = get(converterName, this); + if (converterObject instanceof Function) { + Function f = (Function)converterObject; + value = f.call(Context.getContext(), f.getParentScope(), + this, ScriptRuntime.emptyArgs); + } else { + if (hint == ScriptRuntime.NumberClass + && javaObject instanceof Boolean) + { + boolean b = ((Boolean)javaObject).booleanValue(); + value = ScriptRuntime.wrapNumber(b ? 1.0 : 0.0); + } else { + value = javaObject.toString(); + } + } + } + return value; + } + + /** + * Determine whether we can/should convert between the given type and the + * desired one. This should be superceded by a conversion-cost calculation + * function, but for now I'll hide behind precedent. + */ + public static boolean canConvert(Object fromObj, Class to) { + int weight = getConversionWeight(fromObj, to); + + return (weight < CONVERSION_NONE); + } + + private static final int JSTYPE_UNDEFINED = 0; // undefined type + private static final int JSTYPE_NULL = 1; // null + private static final int JSTYPE_BOOLEAN = 2; // boolean + private static final int JSTYPE_NUMBER = 3; // number + private static final int JSTYPE_STRING = 4; // string + private static final int JSTYPE_JAVA_CLASS = 5; // JavaClass + private static final int JSTYPE_JAVA_OBJECT = 6; // JavaObject + private static final int JSTYPE_JAVA_ARRAY = 7; // JavaArray + private static final int JSTYPE_OBJECT = 8; // Scriptable + + static final byte CONVERSION_TRIVIAL = 1; + static final byte CONVERSION_NONTRIVIAL = 0; + static final byte CONVERSION_NONE = 99; + + /** + * Derive a ranking based on how "natural" the conversion is. + * The special value CONVERSION_NONE means no conversion is possible, + * and CONVERSION_NONTRIVIAL signals that more type conformance testing + * is required. + * Based on + * <a href="http://www.mozilla.org/js/liveconnect/lc3_method_overloading.html"> + * "preferred method conversions" from Live Connect 3</a> + */ + static int getConversionWeight(Object fromObj, Class to) { + int fromCode = getJSTypeCode(fromObj); + + switch (fromCode) { + + case JSTYPE_UNDEFINED: + if (to == ScriptRuntime.StringClass || + to == ScriptRuntime.ObjectClass) { + return 1; + } + break; + + case JSTYPE_NULL: + if (!to.isPrimitive()) { + return 1; + } + break; + + case JSTYPE_BOOLEAN: + // "boolean" is #1 + if (to == Boolean.TYPE) { + return 1; + } + else if (to == ScriptRuntime.BooleanClass) { + return 2; + } + else if (to == ScriptRuntime.ObjectClass) { + return 3; + } + else if (to == ScriptRuntime.StringClass) { + return 4; + } + break; + + case JSTYPE_NUMBER: + if (to.isPrimitive()) { + if (to == Double.TYPE) { + return 1; + } + else if (to != Boolean.TYPE) { + return 1 + getSizeRank(to); + } + } + else { + if (to == ScriptRuntime.StringClass) { + // native numbers are #1-8 + return 9; + } + else if (to == ScriptRuntime.ObjectClass) { + return 10; + } + else if (ScriptRuntime.NumberClass.isAssignableFrom(to)) { + // "double" is #1 + return 2; + } + } + break; + + case JSTYPE_STRING: + if (to == ScriptRuntime.StringClass) { + return 1; + } + else if (to.isInstance(fromObj)) { + return 2; + } + else if (to.isPrimitive()) { + if (to == Character.TYPE) { + return 3; + } else if (to != Boolean.TYPE) { + return 4; + } + } + break; + + case JSTYPE_JAVA_CLASS: + if (to == ScriptRuntime.ClassClass) { + return 1; + } + else if (to == ScriptRuntime.ObjectClass) { + return 3; + } + else if (to == ScriptRuntime.StringClass) { + return 4; + } + break; + + case JSTYPE_JAVA_OBJECT: + case JSTYPE_JAVA_ARRAY: + Object javaObj = fromObj; + if (javaObj instanceof Wrapper) { + javaObj = ((Wrapper)javaObj).unwrap(); + } + if (to.isInstance(javaObj)) { + return CONVERSION_NONTRIVIAL; + } + if (to == ScriptRuntime.StringClass) { + return 2; + } + else if (to.isPrimitive() && to != Boolean.TYPE) { + return (fromCode == JSTYPE_JAVA_ARRAY) + ? CONVERSION_NONE : 2 + getSizeRank(to); + } + break; + + case JSTYPE_OBJECT: + // Other objects takes #1-#3 spots + if (to == fromObj.getClass()) { + // No conversion required + return 1; + } + if (to.isArray()) { + if (fromObj instanceof NativeArray) { + // This is a native array conversion to a java array + // Array conversions are all equal, and preferable to object + // and string conversion, per LC3. + return 1; + } + } + else if (to == ScriptRuntime.ObjectClass) { + return 2; + } + else if (to == ScriptRuntime.StringClass) { + return 3; + } + else if (to == ScriptRuntime.DateClass) { + if (fromObj instanceof NativeDate) { + // This is a native date to java date conversion + return 1; + } + } + else if (to.isInterface()) { + if (fromObj instanceof Function) { + // See comments in coerceType + if (to.getMethods().length == 1) { + return 1; + } + } + return 11; + } + else if (to.isPrimitive() && to != Boolean.TYPE) { + return 3 + getSizeRank(to); + } + break; + } + + return CONVERSION_NONE; + } + + static int getSizeRank(Class aType) { + if (aType == Double.TYPE) { + return 1; + } + else if (aType == Float.TYPE) { + return 2; + } + else if (aType == Long.TYPE) { + return 3; + } + else if (aType == Integer.TYPE) { + return 4; + } + else if (aType == Short.TYPE) { + return 5; + } + else if (aType == Character.TYPE) { + return 6; + } + else if (aType == Byte.TYPE) { + return 7; + } + else if (aType == Boolean.TYPE) { + return CONVERSION_NONE; + } + else { + return 8; + } + } + + private static int getJSTypeCode(Object value) { + if (value == null) { + return JSTYPE_NULL; + } + else if (value == Undefined.instance) { + return JSTYPE_UNDEFINED; + } + else if (value instanceof String) { + return JSTYPE_STRING; + } + else if (value instanceof Number) { + return JSTYPE_NUMBER; + } + else if (value instanceof Boolean) { + return JSTYPE_BOOLEAN; + } + else if (value instanceof Scriptable) { + if (value instanceof NativeJavaClass) { + return JSTYPE_JAVA_CLASS; + } + else if (value instanceof NativeJavaArray) { + return JSTYPE_JAVA_ARRAY; + } + else if (value instanceof Wrapper) { + return JSTYPE_JAVA_OBJECT; + } + else { + return JSTYPE_OBJECT; + } + } + else if (value instanceof Class) { + return JSTYPE_JAVA_CLASS; + } + else { + Class valueClass = value.getClass(); + if (valueClass.isArray()) { + return JSTYPE_JAVA_ARRAY; + } + else { + return JSTYPE_JAVA_OBJECT; + } + } + } + + /** + * Not intended for public use. Callers should use the + * public API Context.toType. + * @deprecated as of 1.5 Release 4 + * @see org.mozilla.javascript.Context#jsToJava(Object, Class) + */ + public static Object coerceType(Class type, Object value) + { + return coerceTypeImpl(type, value); + } + + /** + * Type-munging for field setting and method invocation. + * Conforms to LC3 specification + */ + static Object coerceTypeImpl(Class type, Object value) + { + if (value != null && value.getClass() == type) { + return value; + } + + switch (getJSTypeCode(value)) { + + case JSTYPE_NULL: + // raise error if type.isPrimitive() + if (type.isPrimitive()) { + reportConversionError(value, type); + } + return null; + + case JSTYPE_UNDEFINED: + if (type == ScriptRuntime.StringClass || + type == ScriptRuntime.ObjectClass) { + return "undefined"; + } + else { + reportConversionError("undefined", type); + } + break; + + case JSTYPE_BOOLEAN: + // Under LC3, only JS Booleans can be coerced into a Boolean value + if (type == Boolean.TYPE || + type == ScriptRuntime.BooleanClass || + type == ScriptRuntime.ObjectClass) { + return value; + } + else if (type == ScriptRuntime.StringClass) { + return value.toString(); + } + else { + reportConversionError(value, type); + } + break; + + case JSTYPE_NUMBER: + if (type == ScriptRuntime.StringClass) { + return ScriptRuntime.toString(value); + } + else if (type == ScriptRuntime.ObjectClass) { + return coerceToNumber(Double.TYPE, value); + } + else if ((type.isPrimitive() && type != Boolean.TYPE) || + ScriptRuntime.NumberClass.isAssignableFrom(type)) { + return coerceToNumber(type, value); + } + else { + reportConversionError(value, type); + } + break; + + case JSTYPE_STRING: + if (type == ScriptRuntime.StringClass || type.isInstance(value)) { + return value; + } + else if (type == Character.TYPE + || type == ScriptRuntime.CharacterClass) + { + // Special case for converting a single char string to a + // character + // Placed here because it applies *only* to JS strings, + // not other JS objects converted to strings + if (((String)value).length() == 1) { + return new Character(((String)value).charAt(0)); + } + else { + return coerceToNumber(type, value); + } + } + else if ((type.isPrimitive() && type != Boolean.TYPE) + || ScriptRuntime.NumberClass.isAssignableFrom(type)) + { + return coerceToNumber(type, value); + } + else { + reportConversionError(value, type); + } + break; + + case JSTYPE_JAVA_CLASS: + if (value instanceof Wrapper) { + value = ((Wrapper)value).unwrap(); + } + + if (type == ScriptRuntime.ClassClass || + type == ScriptRuntime.ObjectClass) { + return value; + } + else if (type == ScriptRuntime.StringClass) { + return value.toString(); + } + else { + reportConversionError(value, type); + } + break; + + case JSTYPE_JAVA_OBJECT: + case JSTYPE_JAVA_ARRAY: + if (value instanceof Wrapper) { + value = ((Wrapper)value).unwrap(); + } + if (type.isPrimitive()) { + if (type == Boolean.TYPE) { + reportConversionError(value, type); + } + return coerceToNumber(type, value); + } + else { + if (type == ScriptRuntime.StringClass) { + return value.toString(); + } + else { + if (type.isInstance(value)) { + return value; + } + else { + reportConversionError(value, type); + } + } + } + break; + + case JSTYPE_OBJECT: + if (type == ScriptRuntime.StringClass) { + return ScriptRuntime.toString(value); + } + else if (type.isPrimitive()) { + if (type == Boolean.TYPE) { + reportConversionError(value, type); + } + return coerceToNumber(type, value); + } + else if (type.isInstance(value)) { + return value; + } + else if (type == ScriptRuntime.DateClass + && value instanceof NativeDate) + { + double time = ((NativeDate)value).getJSTimeValue(); + // XXX: This will replace NaN by 0 + return new Date((long)time); + } + else if (type.isArray() && value instanceof NativeArray) { + // Make a new java array, and coerce the JS array components + // to the target (component) type. + NativeArray array = (NativeArray) value; + long length = array.getLength(); + Class arrayType = type.getComponentType(); + Object Result = Array.newInstance(arrayType, (int)length); + for (int i = 0 ; i < length ; ++i) { + try { + Array.set(Result, i, coerceType(arrayType, + array.get(i, array))); + } + catch (EvaluatorException ee) { + reportConversionError(value, type); + } + } + + return Result; + } + else if (value instanceof Wrapper) { + value = ((Wrapper)value).unwrap(); + if (type.isInstance(value)) + return value; + reportConversionError(value, type); + } + else if (type.isInterface() && value instanceof Callable) { + // Try to use function as implementation of Java interface. + // + // XXX: Curently only instances of ScriptableObject are + // supported since the resulting interface proxies should + // be reused next time conversion is made and generic + // Callable has no storage for it. Weak references can + // address it but for now use this restriction. + if (value instanceof ScriptableObject) { + ScriptableObject so = (ScriptableObject)value; + Object key = Kit.makeHashKeyFromPair( + COERCED_INTERFACE_KEY, type); + Object old = so.getAssociatedValue(key); + if (old != null) { + // Function was already wrapped + return old; + } + Context cx = Context.getContext(); + Object glue + = InterfaceAdapter.create(cx, type, (Callable)value); + // Store for later retrival + glue = so.associateValue(key, glue); + return glue; + } + reportConversionError(value, type); + } else { + reportConversionError(value, type); + } + break; + } + + return value; + } + + private static Object coerceToNumber(Class type, Object value) + { + Class valueClass = value.getClass(); + + // Character + if (type == Character.TYPE || type == ScriptRuntime.CharacterClass) { + if (valueClass == ScriptRuntime.CharacterClass) { + return value; + } + return new Character((char)toInteger(value, + ScriptRuntime.CharacterClass, + Character.MIN_VALUE, + Character.MAX_VALUE)); + } + + // Double, Float + if (type == ScriptRuntime.ObjectClass || + type == ScriptRuntime.DoubleClass || type == Double.TYPE) { + return valueClass == ScriptRuntime.DoubleClass + ? value + : new Double(toDouble(value)); + } + + if (type == ScriptRuntime.FloatClass || type == Float.TYPE) { + if (valueClass == ScriptRuntime.FloatClass) { + return value; + } + else { + double number = toDouble(value); + if (Double.isInfinite(number) || Double.isNaN(number) + || number == 0.0) { + return new Float((float)number); + } + else { + double absNumber = Math.abs(number); + if (absNumber < Float.MIN_VALUE) { + return new Float((number > 0.0) ? +0.0 : -0.0); + } + else if (absNumber > Float.MAX_VALUE) { + return new Float((number > 0.0) ? + Float.POSITIVE_INFINITY : + Float.NEGATIVE_INFINITY); + } + else { + return new Float((float)number); + } + } + } + } + + // Integer, Long, Short, Byte + if (type == ScriptRuntime.IntegerClass || type == Integer.TYPE) { + if (valueClass == ScriptRuntime.IntegerClass) { + return value; + } + else { + return new Integer((int)toInteger(value, + ScriptRuntime.IntegerClass, + Integer.MIN_VALUE, + Integer.MAX_VALUE)); + } + } + + if (type == ScriptRuntime.LongClass || type == Long.TYPE) { + if (valueClass == ScriptRuntime.LongClass) { + return value; + } else { + /* Long values cannot be expressed exactly in doubles. + * We thus use the largest and smallest double value that + * has a value expressible as a long value. We build these + * numerical values from their hexidecimal representations + * to avoid any problems caused by attempting to parse a + * decimal representation. + */ + final double max = Double.longBitsToDouble(0x43dfffffffffffffL); + final double min = Double.longBitsToDouble(0xc3e0000000000000L); + return new Long(toInteger(value, + ScriptRuntime.LongClass, + min, + max)); + } + } + + if (type == ScriptRuntime.ShortClass || type == Short.TYPE) { + if (valueClass == ScriptRuntime.ShortClass) { + return value; + } + else { + return new Short((short)toInteger(value, + ScriptRuntime.ShortClass, + Short.MIN_VALUE, + Short.MAX_VALUE)); + } + } + + if (type == ScriptRuntime.ByteClass || type == Byte.TYPE) { + if (valueClass == ScriptRuntime.ByteClass) { + return value; + } + else { + return new Byte((byte)toInteger(value, + ScriptRuntime.ByteClass, + Byte.MIN_VALUE, + Byte.MAX_VALUE)); + } + } + + return new Double(toDouble(value)); + } + + + private static double toDouble(Object value) + { + if (value instanceof Number) { + return ((Number)value).doubleValue(); + } + else if (value instanceof String) { + return ScriptRuntime.toNumber((String)value); + } + else if (value instanceof Scriptable) { + if (value instanceof Wrapper) { + // XXX: optimize tail-recursion? + return toDouble(((Wrapper)value).unwrap()); + } + else { + return ScriptRuntime.toNumber(value); + } + } + else { + Method meth; + try { + meth = value.getClass().getMethod("doubleValue", + (Class [])null); + } + catch (NoSuchMethodException e) { + meth = null; + } + catch (SecurityException e) { + meth = null; + } + if (meth != null) { + try { + return ((Number)meth.invoke(value, + (Object [])null)).doubleValue(); + } + catch (IllegalAccessException e) { + // XXX: ignore, or error message? + reportConversionError(value, Double.TYPE); + } + catch (InvocationTargetException e) { + // XXX: ignore, or error message? + reportConversionError(value, Double.TYPE); + } + } + return ScriptRuntime.toNumber(value.toString()); + } + } + + private static long toInteger(Object value, Class type, + double min, double max) + { + double d = toDouble(value); + + if (Double.isInfinite(d) || Double.isNaN(d)) { + // Convert to string first, for more readable message + reportConversionError(ScriptRuntime.toString(value), type); + } + + if (d > 0.0) { + d = Math.floor(d); + } + else { + d = Math.ceil(d); + } + + if (d < min || d > max) { + // Convert to string first, for more readable message + reportConversionError(ScriptRuntime.toString(value), type); + } + return (long)d; + } + + static void reportConversionError(Object value, Class type) + { + // It uses String.valueOf(value), not value.toString() since + // value can be null, bug 282447. + throw Context.reportRuntimeError2( + "msg.conversion.not.allowed", + String.valueOf(value), + JavaMembers.javaSignature(type)); + } + + private void writeObject(ObjectOutputStream out) + throws IOException + { + out.defaultWriteObject(); + + out.writeBoolean(isAdapter); + if (isAdapter) { + if (adapter_writeAdapterObject == null) { + throw new IOException(); + } + Object[] args = { javaObject, out }; + try { + adapter_writeAdapterObject.invoke(null, args); + } catch (Exception ex) { + throw new IOException(); + } + } else { + out.writeObject(javaObject); + } + + if (staticType != null) { + out.writeObject(staticType.getClass().getName()); + } else { + out.writeObject(null); + } + } + + private void readObject(ObjectInputStream in) + throws IOException, ClassNotFoundException + { + in.defaultReadObject(); + + isAdapter = in.readBoolean(); + if (isAdapter) { + if (adapter_readAdapterObject == null) + throw new ClassNotFoundException(); + Object[] args = { this, in }; + try { + javaObject = adapter_readAdapterObject.invoke(null, args); + } catch (Exception ex) { + throw new IOException(); + } + } else { + javaObject = in.readObject(); + } + + String className = (String)in.readObject(); + if (className != null) { + staticType = Class.forName(className); + } else { + staticType = null; + } + + initMembers(); + } + + /** + * The prototype of this object. + */ + protected Scriptable prototype; + + /** + * The parent scope of this object. + */ + protected Scriptable parent; + + protected transient Object javaObject; + + protected transient Class staticType; + protected transient JavaMembers members; + private transient Hashtable fieldAndMethods; + private transient boolean isAdapter; + + private static final Object COERCED_INTERFACE_KEY = new Object(); + private static Method adapter_writeAdapterObject; + private static Method adapter_readAdapterObject; + + static { + // Reflection in java is verbose + Class[] sig2 = new Class[2]; + Class cl = Kit.classOrNull("org.mozilla.javascript.JavaAdapter"); + if (cl != null) { + try { + sig2[0] = ScriptRuntime.ObjectClass; + sig2[1] = Kit.classOrNull("java.io.ObjectOutputStream"); + adapter_writeAdapterObject = cl.getMethod("writeAdapterObject", + sig2); + + sig2[0] = ScriptRuntime.ScriptableClass; + sig2[1] = Kit.classOrNull("java.io.ObjectInputStream"); + adapter_readAdapterObject = cl.getMethod("readAdapterObject", + sig2); + + } catch (Exception ex) { + adapter_writeAdapterObject = null; + adapter_readAdapterObject = null; + } + } + } + +} |