DarkSharpness commented on PR #218:
URL: https://github.com/apache/tvm-ffi/pull/218#issuecomment-3483946859
ic. but consider this case:
```
#include <cstdio>
struct MyClass {};
struct iterator_0 {
MyClass operator*() { return {}; }
};
struct iterator_1 {
const MyClass operator*() { return {}; }
};
auto func(MyClass&&) -> void { std::puts("rvalue"); }
auto func(const MyClass&) -> void { std::puts("lvalue"); }
auto main() -> int {
iterator_0 it0;
iterator_1 it1;
func(*it0); // rvalue
func(*it1); // lvalue
}
```
For a iterator returning const `value_type`, it will choose the lvalue
resolution, which may be less performant for heap-allocated values (especially
STL components, like `vector`, `string`).
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