Follow-Up: Returning a ValueTuple<> with more than 4 type arguments requires to use the overload taking a Delegate.

Author: kpreisser

src/Function.cs

@@ -1908,7 +1908,7 @@ internal static TypeHandle GetFunctionType(Type type, List<ValueKind> parameters
 
             if (returnsTuple && !allowTuple)
             {
-                throw new ArgumentException("Use a different overload that implicitly returns ValueTuple.");
+                throw new ArgumentException($"Use a different overload that implicitly returns ValueTuple, or the overload taking a {nameof(Delegate)}.");
             }
 
             return new Function.TypeHandle(Function.Native.wasm_functype_new(new ValueTypeArray(parameters), new ValueTypeArray(results)));

tests/FunctionTests.cs

@@ -34,10 +34,10 @@ public FunctionTests(FunctionsFixture fixture)
 
             Linker.Define("env", "return_i32", Function.FromCallback(Store, GetBoundFuncIntDelegate()));
 
-            Linker.Define("env", "return_15_values", Function.FromCallback(Store, () =>
+            Linker.Define("env", "return_15_values", Function.FromCallback(Store, (Delegate)(() =>
             {
                 return (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
-            }));
+            })));
 
             Linker.Define("env", "accept_15_values", Function.FromCallback(Store,
                 (int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9, int i10, int i11, int i12, int i13, int i14, int i15) =>

tests/LinkerFunctionsTests.cs

@@ -33,10 +33,10 @@ public LinkerFunctionTests(LinkerFunctionsFixture fixture)
 
             Linker.Define("env", "return_i32", Function.FromCallback(Store, GetBoundFuncIntDelegate()));
 
-            Linker.Define("env", "return_15_values", Function.FromCallback(Store, () =>
+            Linker.Define("env", "return_15_values", Function.FromCallback(Store, (Delegate)(() =>
             {
                 return (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
-            }));
+            })));
 
             Linker.Define("env", "accept_15_values", Function.FromCallback(Store,
                 (int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9, int i10, int i11, int i12, int i13, int i14, int i15) =>