diff options
Diffstat (limited to 'compiler/rustc_codegen_ssa/src/mir/debuginfo.rs')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/mir/debuginfo.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs index 21d20475408..d4d7f16db55 100644 --- a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs +++ b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs @@ -20,7 +20,9 @@ use crate::traits::*; pub struct FunctionDebugContext<'tcx, S, L> { /// Maps from source code to the corresponding debug info scope. - pub scopes: IndexVec<mir::SourceScope, DebugScope<S, L>>, + /// May be None if the backend is not capable of representing the scope for + /// some reason. + pub scopes: IndexVec<mir::SourceScope, Option<DebugScope<S, L>>>, /// Maps from an inlined function to its debug info declaration. pub inlined_function_scopes: FxHashMap<Instance<'tcx>, S>, @@ -231,7 +233,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { &self, source_info: mir::SourceInfo, ) -> Option<(Bx::DIScope, Option<Bx::DILocation>, Span)> { - let scope = &self.debug_context.as_ref()?.scopes[source_info.scope]; + let scope = &self.debug_context.as_ref()?.scopes[source_info.scope]?; let span = hygiene::walk_chain_collapsed(source_info.span, self.mir.span); Some((scope.adjust_dbg_scope_for_span(self.cx, span), scope.inlined_at, span)) } |