tqchen opened a new pull request, #582:
URL: https://github.com/apache/tvm-ffi/pull/582
## Summary
Introduce `tvm::ffi::reflection::overload_cast<Args...>` — a `constexpr`
helper for picking a specific overload of an overloaded callable by spelling
out a parameter-type prefix that uniquely identifies it. Trailing parameter
types (if any) are deduced from the picked overload's signature. The result is
a typed function pointer (member or free) usable wherever a typed fn ptr is
required, including as a non-type template argument.
If the prefix matches multiple overloads, the call is ambiguous and the
caller spells more parameters until exactly one overload matches.
Const-qualified members are picked via the `tvm::ffi::reflection::const_` tag.
Placed in \`tvm::ffi::reflection\` alongside \`AttachFieldFlag\` and other
registration-time helpers.
## Test plan
- [x] New unit tests in \`tests/cpp/test_reflection.cc\` covering:
- Prefix matching (member + free fn) with trailing-arg deduction
- Shared-prefix disambiguation (caller must spell more)
- Const-qualified member via \`const_\` tag
- Use as a non-type template argument
- [x] All 4 \`OverloadCast.*\` tests pass; full \`tvm_ffi_tests\` suite
passes
- [x] \`pre-commit run --all-files\` clean
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