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Small inference fix

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As per comment: https://github.com/rust-lang/rust/issues/39297#issuecomment-276810343
This commit is contained in:
Andrew Cann 2017-02-03 21:12:03 +08:00
parent 29dece1c8b
commit d87644cc0f
3 changed files with 0 additions and 47 deletions
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11
src/librustc_typeck/check/mod.rs
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@ -4156,17 +4156,6 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
};
if self.diverges.get().always() {
if let ExpectHasType(ety) = expected {
// Avoid forcing a type (only `!` for now) in unreachable code.
// FIXME(aburka) do we need this special case? and should it be is_uninhabited?
if !ety.is_never() {
if let Some(ref e) = blk.expr {
// Coerce the tail expression to the right type.
self.demand_coerce(e, ty, ety);
}
}
}
ty = self.next_diverging_ty_var(TypeVariableOrigin::DivergingBlockExpr(blk.span));
} else if let ExpectHasType(ety) = expected {
if let Some(ref e) = blk.expr {