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Add a getter for Frame.loc #82607

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Merged
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Feb 28, 2021
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Add a getter for Frame.loc #82607

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10 changes: 10 additions & 0 deletions compiler/rustc_mir/src/interpret/eval_context.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -226,6 +226,16 @@ impl<'mir, 'tcx, Tag> Frame<'mir, 'tcx, Tag> {
}

impl<'mir, 'tcx, Tag, Extra> Frame<'mir, 'tcx, Tag, Extra> {
/// Get the current location within the Frame.
///
/// If this is `Err`, we are not currently executing any particular statement in
/// this frame (can happen e.g. during frame initialization, and during unwinding on
/// frames without cleanup code).
/// We basically abuse `Result` as `Either`.
pub fn current_loc(&self) -> Result<mir::Location, Span> {
self.loc
}

/// Return the `SourceInfo` of the current instruction.
pub fn current_source_info(&self) -> Option<&mir::SourceInfo> {
self.loc.ok().map(|loc| self.body.source_info(loc))
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