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docs: show namedArg inside the failing optional call #113

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AtwoodTM merged 1 commit into from
Sep 16, 2026
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docs: show namedArg inside the failing optional call #113

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2 changes: 1 addition & 1 deletion docfx/docs/caveats.md
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Expand Up @@ -28,7 +28,7 @@ A call with **15 or more** arguments throws `TypeLoadException: Cannot Emit long

## C# optional parameters

The DLR does not fill CLR optional defaults. `obj?Opt(5)` and `namedArg "a" 5` both fail (`No overload takes 1 arguments`) when `Opt` is `Opt(int a, int b = 0)`. Pass every argument. Named args work when the full set is present.
The DLR does not fill CLR optional defaults. `obj?Opt(5)` and `obj?Opt(Dyn.namedArg "a" 5)` both fail (`No overload takes 1 arguments`) when `Opt` is `Opt(int a, int b = 0)`. `Dyn.namedArg` only builds an `InvokeArg`; the miss is on the call. Pass every argument. Named args work when the full set is present.

## Function-typed results delay the call

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