diff --git a/src/debuginfo/line_info.rs b/src/debuginfo/line_info.rs index 3ad0c420eaf..463de6a91c7 100644 --- a/src/debuginfo/line_info.rs +++ b/src/debuginfo/line_info.rs @@ -68,9 +68,9 @@ impl DebugContext { ) -> (Lrc<SourceFile>, u64, u64) { // Based on https://github.com/rust-lang/rust/blob/e369d87b015a84653343032833d65d0545fd3f26/src/librustc_codegen_ssa/mir/mod.rs#L116-L131 // In order to have a good line stepping behavior in debugger, we overwrite debug - // locations of macro expansions with that of the outermost expansion site - // (unless the crate is being compiled with `-Z debug-macros`). - let span = if !span.from_expansion() || tcx.sess.opts.unstable_opts.debug_macros { + // locations of macro expansions with that of the outermost expansion site (when the macro is + // annotated with `#[collapse_debuginfo]` or when `-Zdebug-macros` is provided). + let span = if tcx.should_collapse_debuginfo(span) { span } else { // Walk up the macro expansion chain until we reach a non-expanded span.