/// <summary>
/// Fetches the value of a variable stored in the scope and returns
/// a Boolean indicating success of the lookup.
///
/// When the method's result is false, then it assigns null to value.
///
/// If there is no engine associated with the scope (see ScriptRuntime.CreateScope),
/// then the name lookup is a literal lookup of the name in the scope's dictionary. Therefore,
/// it is case-sensitive for example.
///
/// If there is a default engine, then the name lookup uses that language's semantics.
/// </summary>
public bool TryGetVariable(ScriptScope scope, string name, out object value)
{
ContractUtils.RequiresNotNull(scope, "scope");
ContractUtils.RequiresNotNull(name, "name");
return(_language.TryLookupName(GetCodeContext(scope), SymbolTable.StringToId(name), out value));
}