run full query stack print just when RUST_BACKTRACE is set

2020-09-19 18:37:58 +04:30 · 2020-09-19 18:37:58 +04:30 · 01f838a626
commit 01f838a626
parent 2b91b7fba9
1 changed files with 5 additions and 1 deletions
--- a/compiler/rustc_middle/src/ty/query/plumbing.rs
+++ b/compiler/rustc_middle/src/ty/query/plumbing.rs
@ -124,7 +124,11 @@ impl<'tcx> TyCtxt<'tcx> {
        })
    }

-    pub fn try_print_query_stack(handler: &Handler, num_frames: Option<usize>) {
+    pub fn try_print_query_stack(
+        handler: &Handler,
+        num_frames: Option<usize>,
+        backtrace: Option<bool>,
+    ) {
        eprintln!("query stack during panic:");

        // Be careful reyling on global state here: this code is called from