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//TEST:INTERPRET(filecheck=CHECK):
// Test that we can call variadic generic [Differentiable] methods.
interface IParameterExtractor
{
[Differentiable]
void extract(no_diff uint x);
}
struct FloatParameterExtractor : IParameterExtractor
{
[Differentiable]
void extract(no_diff uint x)
{
printf("fff\n");
}
}
[Differentiable]
void extract_parameters_helper<T : IParameterExtractor>(
no_diff uint x,
T arg,
)
{
arg.extract(x);
}
[Differentiable]
void wrapper1<each T>(
uint x,
expand each T args, // compiler will add no_diff modifier here.
)
where T : IParameterExtractor
{
expand extract_parameters_helper(x, each args);
}
[Differentiable]
void wrapper2<each T>(
uint x,
expand each T args, // compiler will add no_diff modifier here.
)
where T : IParameterExtractor
{
wrapper1(x, args);
}
void main()
{
// There was a bug that causes the compiler failing to treat a `no_diff TypePack` as
// a type pack, and thus diagnose an error when resolving the following call.
//
wrapper2(1, FloatParameterExtractor(), FloatParameterExtractor());
}
// CHECK: fff
// CHECK: fff
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