private static Object doCall(
Context cx,
Scriptable scope,
Scriptable thisObj,
Function f,
Object[] args,
long argsToWrap) {
// Wrap the rest of objects
for (int i = 0; i != args.length; ++i) {
if (0 != (argsToWrap & (1 << i))) {
Object arg = args[i];
if (!(arg instanceof Scriptable)) {
args[i] = cx.getWrapFactory().wrap(cx, scope, arg, null);
}
}
}
return f.call(cx, scope, thisObj, args);
}
/**
* Performs conversions on argument types if needed and invokes the underlying Java method or
* constructor.
*
* <p>Implements Function.call.
*
* @see gov.nbcs.rp.common.js.javascript.Function#call( Context, Scriptable, Scriptable, Object[])
*/
public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) {
Object result;
boolean checkMethodResult = false;
if (parmsLength < 0) {
if (parmsLength == VARARGS_METHOD) {
Object[] invokeArgs = {cx, thisObj, args, this};
result = member.invoke(null, invokeArgs);
checkMethodResult = true;
} else {
boolean inNewExpr = (thisObj == null);
Boolean b = inNewExpr ? Boolean.TRUE : Boolean.FALSE;
Object[] invokeArgs = {cx, args, this, b};
result =
(member.isCtor()) ? member.newInstance(invokeArgs) : member.invoke(null, invokeArgs);
}
} else {
if (!isStatic) {
Class clazz = member.getDeclaringClass();
if (!clazz.isInstance(thisObj)) {
boolean compatible = false;
if (thisObj == scope) {
Scriptable parentScope = getParentScope();
if (scope != parentScope) {
// Call with dynamic scope for standalone function,
// use parentScope as thisObj
compatible = clazz.isInstance(parentScope);
if (compatible) {
thisObj = parentScope;
}
}
}
if (!compatible) {
// Couldn't find an object to call this on.
throw ScriptRuntime.typeError1("msg.incompat.call", functionName);
}
}
}
Object[] invokeArgs;
if (parmsLength == args.length) {
// Do not allocate new argument array if java arguments are
// the same as the original js ones.
invokeArgs = args;
for (int i = 0; i != parmsLength; ++i) {
Object arg = args[i];
Object converted = convertArg(cx, scope, arg, typeTags[i]);
if (arg != converted) {
if (invokeArgs == args) {
invokeArgs = (Object[]) args.clone();
}
invokeArgs[i] = converted;
}
}
} else if (parmsLength == 0) {
invokeArgs = ScriptRuntime.emptyArgs;
} else {
invokeArgs = new Object[parmsLength];
for (int i = 0; i != parmsLength; ++i) {
Object arg = (i < args.length) ? args[i] : Undefined.instance;
invokeArgs[i] = convertArg(cx, scope, arg, typeTags[i]);
}
}
if (member.isMethod()) {
result = member.invoke(thisObj, invokeArgs);
checkMethodResult = true;
} else {
result = member.newInstance(invokeArgs);
}
}
if (checkMethodResult) {
if (hasVoidReturn) {
result = Undefined.instance;
} else if (returnTypeTag == JAVA_UNSUPPORTED_TYPE) {
result = cx.getWrapFactory().wrap(cx, scope, result, null);
}
// XXX: the code assumes that if returnTypeTag == JAVA_OBJECT_TYPE
// then the Java method did a proper job of converting the
// result to JS primitive or Scriptable to avoid
// potentially costly Context.javaToJS call.
}
return result;
}
/**
* @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);
}