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interpret: expose generate_stacktrace without full InterpCx #101985

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merged 1 commit into from
Sep 20, 2022
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interpret: expose generate_stacktrace without full InterpCx #101985

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11 changes: 9 additions & 2 deletions compiler/rustc_const_eval/src/interpret/eval_context.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -929,11 +929,13 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
}

#[must_use]
pub fn generate_stacktrace(&self) -> Vec<FrameInfo<'tcx>> {
pub fn generate_stacktrace_from_stack(
stack: &[Frame<'mir, 'tcx, M::Provenance, M::FrameExtra>],
) -> Vec<FrameInfo<'tcx>> {
let mut frames = Vec::new();
// This deliberately does *not* honor `requires_caller_location` since it is used for much
// more than just panics.
for frame in self.stack().iter().rev() {
for frame in stack.iter().rev() {
let lint_root = frame.current_source_info().and_then(|source_info| {
match &frame.body.source_scopes[source_info.scope].local_data {
mir::ClearCrossCrate::Set(data) => Some(data.lint_root),
Expand All @@ -947,6 +949,11 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
trace!("generate stacktrace: {:#?}", frames);
frames
}

#[must_use]
pub fn generate_stacktrace(&self) -> Vec<FrameInfo<'tcx>> {
Self::generate_stacktrace_from_stack(self.stack())
}
}

#[doc(hidden)]
Expand Down