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Add a getter for Frame.loc

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This is necessary for Priroda.
This commit is contained in:
bjorn3 2021-02-27 21:01:02 +01:00
parent ec7f8d94df
commit 632a89529a
1 changed files with 10 additions and 0 deletions
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10
compiler/rustc_mir/src/interpret/eval_context.rs
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@ -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))