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Matthias Krüger
215d7b661e
Point at span within local macros even when error happens in nested external macro Address issue noticed at https://users.rust-lang.org/t/error-message-does-not-specify-where-in-macro/135157/1. On errors occurring within a macro expansion, point at the innermost local macro expansion point. ``` error[E0308]: mismatched types --> $DIR/macro-span-caller-replacement.rs:5:17 | LL | s = format!("{arg}"); | ^^^^^^^^^^^^^^^^ expected `&str`, found `String` ... LL | macro_with_format!(); | -------------------- in this macro invocation | = note: this error originates in the macro `format` which comes from the expansion of the macro `macro_with_format` (in Nightly builds, run with -Z macro-backtrace for more info) ```