Java Utililty Methods Javascript Mozilla Library

List of utility methods to do Javascript Mozilla Library

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Description

The list of methods to do Javascript Mozilla Library are organized into topic(s).

Method

StringgetFunctionArgsString(FunctionNode fn)
Iterates through a function's parameters and returns a string representation of them, suitable for presentation as part of the method's signature. 
StringBuilder sb = new StringBuilder("(");
int paramCount = fn.getParamCount();
if (paramCount > 0) {
    List<AstNode> fnParams = fn.getParams();
    for (int i = 0; i < paramCount; i++) {
        String paramName = null;
        AstNode paramNode = fnParams.get(i);
        switch (paramNode.getType()) {
...
ContextgetGlobalContextForValidation()
get Global Context For Validation 
Context context = Context.enter();
context.setOptimizationLevel(-1);
return context;
ObjectgetJavaObject(Scriptable scope, String name)
get Java Object 
NativeJavaObject objWrapper = (NativeJavaObject) scope.get(name, null);
return objWrapper.unwrap();
ScriptablegetJsArray(Scriptable scope, Vector v)
get Js Array 
List<Object> list = new ArrayList<Object>();
for (int i = 0; i < v.size(); i++) {
    if (v.get(i) != null)
        list.add(Context.toObject(v.get(i), scope));
Context cx = Context.getCurrentContext();
return cx.newArray(scope, list.toArray());
MapgetMapArgument(Object[] args, int pos)
Get an argument as Map 
if (pos >= args.length || args[pos] == null || args[pos] == Undefined.instance)
    return null;
if (args[pos] instanceof Map<?, ?>)
    return (Map<?, ?>) args[pos];
throw new IllegalArgumentException("Can't convert to java.util.Map: " + args[pos]);
ObjectgetObjectArgument(Object[] args, int pos, Object defaultValue)
Get an argument as object 
if (pos >= args.length || args[pos] == null || args[pos] == Undefined.instance)
    return defaultValue;
return Context.jsToJava(args[pos], Object.class);
ObjectgetProperty(Scriptable obj, final String prop)
get Property 
while (obj != null) {
    final Object val = obj.get(prop, obj);
    if (val != Scriptable.NOT_FOUND) {
        return val;
    obj = obj.getPrototype();
throw new NoSuchFieldException(prop);
...
StringgetPropertyName(AstNode propKeyNode)
Property keys in object literals can be identifiers or string literals. 
return (propKeyNode instanceof Name) ? ((Name) propKeyNode).getIdentifier()
        : ((StringLiteral) propKeyNode).getValue();
StringgetPrototypeClazz(List nodes)
get Prototype Clazz 
return getPrototypeClazz(nodes, -1);
ScriptableObjectgetScriptableArgument(Object[] args, int pos, boolean allowNull)
Get an argument as ScriptableObject 
if (pos >= args.length || args[pos] == null || args[pos] == Undefined.instance) {
    if (allowNull)
        return null;
    throw new IllegalArgumentException("Argument " + (pos + 1) + " must not be null");
if (args[pos] instanceof ScriptableObject) {
    return (ScriptableObject) args[pos];
throw new IllegalArgumentException("Can't convert to ScriptableObject: " + args[pos]);