7 ms·

This is a nice step. Now they should allow expressions in addition to just names and apply it to all string literals.

• DrMeepster 5y ago
  This can never happen with regular string literals. String literals have the type `&'static str` but formatting returns a `String`.
  • pornel 5y ago
    Perhaps something could be done with compile-time code execution, but the bigger problem is that it wouldn't be backwards-compatible. Currently "{foo}" is a perfectly valid string that doesn't evaluate anything.
    • hajile 5y ago
      In truth, it probably requires something like `f"foo {bar}"`