private static DLR.Expression BuildMonadicCase(
Token functionToken,
DLR.LabelTarget methodReturnTarget,
DLR.ParameterExpression methodEnvArg,
DLR.ParameterExpression methodRightArg)
{
DLR.Expression result;
AbstractMonadicFunction monadic = MethodChooser.GetMonadicMethod(functionToken);
if (monadic != null)
{
result = DLR.Expression.Goto(
methodReturnTarget,
DLR.Expression.Call(
DLR.Expression.Constant(monadic),
monadic.GetType().GetMethod("Execute"),
methodRightArg,
methodEnvArg
)
);
}
else
{
result = DLR.Expression.Throw(
DLR.Expression.New(
typeof(Error.Valence).GetConstructor(new Type[] { typeof(string) }),
DLR.Expression.Constant(functionToken.Text)
)
);
}
return(result);
}
private DLR.Expression GenerateMonadic(AplusScope scope, DLR.Expression argument)
{
DLR.Expression result;
// Handle the result monadic function a little differently:
if (this.token.Type == Tokens.RESULT)
{
result = scope.ReturnTarget != null
// If inside of a function create a return expression Tree
? DLR.Expression.Return(scope.ReturnTarget, argument, typeof(AType))
// Otherwise just return the value
: argument
;
}
else
{
AbstractMonadicFunction method = MethodChooser.GetMonadicMethod(this.token);
if (method == null)
{
throw new ParseException(String.Format("Not supported Monadic function[{0}]", this.token));
}
result = DLR.Expression.Call(
DLR.Expression.Constant(method),
method.GetType().GetMethod("Execute"),
argument,
scope.GetRuntimeExpression()
);
}
return(result);
}