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explain why we don't need to run type-checker when NLL is enabled

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Niko Matsakis 2018-02-23 10:42:12 -05:00
parent 2370b60529
commit bcd996857e
1 changed files with 2 additions and 0 deletions
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src/librustc_mir/borrow_check/nll/type_check/mod.rs
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@ -1585,6 +1585,8 @@ impl MirPass for TypeckMir {
let id = tcx.hir.as_local_node_id(def_id).unwrap(); let id = tcx.hir.as_local_node_id(def_id).unwrap();
debug!("run_pass: {:?}", def_id); debug!("run_pass: {:?}", def_id);
// When NLL is enabled, the borrow checker runs the typeck
// itself, so we don't need this MIR pass anymore.
if tcx.sess.nll() { if tcx.sess.nll() {
return; return;
} }