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make the backtrace field of EvalError private #61618

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Merged
merged 2 commits into from
Jun 7, 2019
Merged

make the backtrace field of EvalError private #61618

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625763f
make the backtrace field of EvalError private
RalfJung Jun 7, 2019
524f146
add doc comment for EvalError
RalfJung Jun 7, 2019
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7 changes: 6 additions & 1 deletion src/librustc/mir/interpret/error.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -179,10 +179,15 @@ pub fn struct_error<'a, 'gcx, 'tcx>(
struct_span_err!(tcx.sess, tcx.span, E0080, "{}", msg)
}

/// Packages the kind of error we got from the const code interpreter
/// up with a Rust-level backtrace of where the error occured.
/// Thsese should always be constructed by calling `.into()` on
/// a `InterpError`. In `librustc_mir::interpret`, we have the `err!`
/// macro for this
#[derive(Debug, Clone)]
pub struct EvalError<'tcx> {
pub kind: InterpError<'tcx, u64>,
pub backtrace: Option<Box<Backtrace>>,
backtrace: Option<Box<Backtrace>>,
}

impl<'tcx> EvalError<'tcx> {
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