/**
* Return new {@link Scriptable} instance using the default constructor for the class of the
* underlying Java method. Return null to indicate that the call method should be used to create
* new objects.
*/
public Scriptable createObject(Context cx, Scriptable scope) {
if (member.isCtor() || (parmsLength == VARARGS_CTOR)) {
return null;
}
Scriptable result;
try {
result = (Scriptable) member.getDeclaringClass().newInstance();
} catch (Exception ex) {
throw Context.throwAsScriptRuntimeEx(ex);
}
result.setPrototype(getClassPrototype());
result.setParentScope(getParentScope());
return result;
}
/**
* Define this function as a JavaScript constructor.
*
* <p>Sets up the "prototype" and "constructor" properties. Also calls setParent and setPrototype
* with appropriate values. Then adds the function object as a property of the given scope, using
* <code>prototype.getClassName()</code> as the name of the property.
*
* @param scope the scope in which to define the constructor (typically the global object)
* @param prototype the prototype object
* @see gov.nbcs.rp.common.js.javascript.Scriptable#setParentScope
* @see gov.nbcs.rp.common.js.javascript.Scriptable#setPrototype
* @see gov.nbcs.rp.common.js.javascript.Scriptable#getClassName
*/
public void addAsConstructor(Scriptable scope, Scriptable prototype) {
ScriptRuntime.setFunctionProtoAndParent(this, scope);
setImmunePrototypeProperty(prototype);
prototype.setParentScope(this);
final int attr =
ScriptableObject.DONTENUM | ScriptableObject.PERMANENT | ScriptableObject.READONLY;
defineProperty(prototype, "constructor", this, attr);
String name = prototype.getClassName();
defineProperty(scope, name, this, ScriptableObject.DONTENUM);
setParentScope(scope);
}
public static Object eval(String source, Map<String, Scriptable> bindings) {
Context cx = ContextFactory.getGlobal().enterContext();
try {
Scriptable scope = cx.initStandardObjects();
if (bindings != null) {
for (String id : bindings.keySet()) {
Scriptable object = bindings.get(id);
object.setParentScope(scope);
scope.put(id, scope, object);
}
}
return cx.evaluateString(scope, source, "source", 1, null);
} finally {
Context.exit();
}
}