public EnkelFunction Bind(EnkelInstance instance)
{
var env = new EnkelEnvironment(_closure);
env.Define(new DummyToken(TokenType.This, "this", null, 0), instance);
return(new EnkelFunction(_declaration, env, _isConstructor));
}
static EnkelEnvironment()
{
GlobalEnvironment = new EnkelEnvironment(new Dictionary <string, object>
{
{ "IsOdd", new IsOdd() },
{ "IsEven", new IsEven() },
{ "Print", new Print() },
{ "Input", new Input() },
{ "TypeOf", new TypeOf() }
});
}
public object Call(IInterpreter interpreter, IList <object> args)
{
var environment = new EnkelEnvironment(_closure);
for (var i = 0; i < _declaration.Params.Count; i++)
{
environment.Define(_declaration.Params[i], args[i]);
}
try
{
interpreter.ExecuteBlock(_declaration.Body, environment);
}
catch (Return @return)
{
return(@return.Value);
}
return(_isConstructor ? _closure.GetAt(0, new DummyToken(TokenType.This, "this", null, 0)) : null);
}