DarkSharpness commented on issue #265:
URL: https://github.com/apache/tvm-ffi/issues/265#issuecomment-3573608568
@tqchen I believe a static `TypedOverloadedFunc`, which takes a list of
Callables as template arguments, is likely the most efficient implementation:
the compiler can (hopefully) inline each candidate and minimize dispatch
overhead.
However, the trade-off is reduced API flexibility. In the static style,
users must explicitly enumerate all overloads in a single `Def` invocation.
This makes certain advanced patterns, such as cross-module overloads where
functions with the same name are registered in different modules, harder or
impossible.
Example APIs:
static-style:
```c++
GlobalDef().def("func", TypedOverloadedFunc{FnA, FnB});
```
dynamic style:
```c++
GlobalDef().def("func", FnA);
// somewhere else
GlobalDef().def("func", FnB);
```
Both style make sense to me.
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