private IValue GetIValueFromDslToken()
{
IValue returnValue = null;
DslObject obj = GetObject(_lookaheadFirst);
if (obj == DslObject.Variable)
{
returnValue = new VariableValue();
var varName = _lookaheadFirst.Value;
if (varName.StartsWith("[") && varName.EndsWith("]"))
{
varName = varName.Remove(varName.Length - 1).Substring(1);
}
(returnValue as VariableValue).VariableName = varName;
DiscardToken();
}
else if (obj == DslObject.FixedValue)
{
returnValue = new FixedValue();
(returnValue as FixedValue).Value = _lookaheadFirst.Value;
DiscardToken();
}
else if (obj == DslObject.NULL)
{
returnValue = new NullValue();
DiscardToken();
}
else if (obj == DslObject.DataType)
{
returnValue = new DataTypeValue();
(returnValue as DataTypeValue).TypeName = _lookaheadFirst.Value;
DiscardToken();
}
else if (obj == DslObject.Function)
{
returnValue = new FunctionCallValue();
var x = returnValue as FunctionCallValue;
x.FunctionName = _lookaheadFirst.Value.Remove(_lookaheadFirst.Value.Length - 1);
DiscardToken();
while (_lookaheadFirst.TokenType != TokenType.CloseParenthesis)
{
x.Parameters.Add(GetIValueFromDslToken());
if (!(_lookaheadFirst.TokenType == TokenType.Comma || _lookaheadFirst.TokenType == TokenType.CloseParenthesis))
{
throw new ArgumentException(", or ) expected " + _lookaheadFirst.Value + " found");
}
if (_lookaheadFirst.TokenType == TokenType.Comma)
{
DiscardToken();
}
}
DiscardToken();
}
return(returnValue);
}
public Call(FunctionCallValue f)
{
Function = f;
}
