// Returns a dynamic InvokeMember or Invoke expression, depending on the
// Function expression.
//
public static DynamicExpression AnalyzeFunCallExpr(
SymplFunCallExpr expr, AnalysisScope scope)
{
if (expr.Function is SymplDottedExpr)
{
SymplDottedExpr dottedExpr = (SymplDottedExpr)expr.Function;
Expression objExpr;
int length = dottedExpr.Exprs.Length;
if (length > 1)
{
objExpr = AnalyzeDottedExpr(
// create a new dot expression for the object that doesn't
// include the last part
new SymplDottedExpr(
dottedExpr.ObjectExpr,
RuntimeHelpers.RemoveLast(dottedExpr.Exprs)),
scope
);
}
else
{
objExpr = AnalyzeExpr(dottedExpr.ObjectExpr, scope);
}
List <Expression> args = new List <Expression>();
args.Add(objExpr);
args.AddRange(expr.Arguments.Select(a => AnalyzeExpr(a, scope)));
// last expr must be an id
var lastExpr = (SymplIdExpr)(dottedExpr.Exprs.Last());
return(Expression.Dynamic(
scope.GetRuntime().GetInvokeMemberBinder(
new InvokeMemberBinderKey(
lastExpr.IdToken.Name,
new CallInfo(expr.Arguments.Length))),
typeof(object),
args
));
}
else
{
var fun = AnalyzeExpr(expr.Function, scope);
List <Expression> args = new List <Expression>();
args.Add(fun);
args.AddRange(expr.Arguments.Select(a => AnalyzeExpr(a, scope)));
// Use DynExpr so that I don't always have to have a delegate to call,
// such as what happens with IPy interop.
return(Expression.Dynamic(
scope.GetRuntime()
.GetInvokeBinder(new CallInfo(expr.Arguments.Length)),
typeof(object),
args
));
}
}