public Collection<ELFunctionDefinition> getAllFunctions() {
List<ELFunctionDefinition> fns = new ArrayList<>(functionLibrary.entries());
if (parent != null) {
fns.addAll(parent.getAllFunctions());
}
return fns;
}
public ELFunctionDefinition getFunction(String name) {
ELFunctionDefinition f = functionLibrary.getFunction(name);
if (f != null) {
return f;
}
if (parent != null) {
return parent.getFunction(name);
}
return null;
}
public void registerFunction(ELFunctionDefinition f) {
functionLibrary.addFunction(f);
}