diff options
| -rw-r--r-- | src/librustc/ty/query/plumbing.rs | 8 | ||||
| -rw-r--r-- | src/librustc_driver/lib.rs | 2 |
2 files changed, 7 insertions, 3 deletions
diff --git a/src/librustc/ty/query/plumbing.rs b/src/librustc/ty/query/plumbing.rs index d247c0f9f69..da58a5ae1cd 100644 --- a/src/librustc/ty/query/plumbing.rs +++ b/src/librustc/ty/query/plumbing.rs @@ -15,6 +15,7 @@ use errors::DiagnosticBuilder; use errors::Level; use errors::Diagnostic; use errors::FatalError; +use errors::Handler; use rustc_data_structures::fx::{FxHashMap}; use rustc_data_structures::sync::{Lrc, Lock}; use rustc_data_structures::sharded::Sharded; @@ -321,9 +322,12 @@ impl<'tcx> TyCtxt<'tcx> { }) } - pub fn try_print_query_stack() { + pub fn try_print_query_stack(handler: &Handler) { eprintln!("query stack during panic:"); + // Be careful reyling on global state here: this code is called from + // a panic hook, which means that the global `Handler` may be in a weird + // state if it was responsible for triggering the panic. tls::with_context_opt(|icx| { if let Some(icx) = icx { let mut current_query = icx.query.clone(); @@ -336,7 +340,7 @@ impl<'tcx> TyCtxt<'tcx> { query.info.query.name(), query.info.query.describe(icx.tcx))); diag.span = icx.tcx.sess.source_map().def_span(query.info.span).into(); - icx.tcx.sess.diagnostic().force_print_diagnostic(diag); + handler.force_print_diagnostic(diag); current_query = query.parent.clone(); i += 1; diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs index 774a5af1b1c..dd088b68a23 100644 --- a/src/librustc_driver/lib.rs +++ b/src/librustc_driver/lib.rs @@ -1231,7 +1231,7 @@ pub fn report_ice(info: &panic::PanicInfo<'_>, bug_report_url: &str) { let backtrace = env::var_os("RUST_BACKTRACE").map(|x| &x != "0").unwrap_or(false); if backtrace { - TyCtxt::try_print_query_stack(); + TyCtxt::try_print_query_stack(&handler); } #[cfg(windows)] |