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rustc: Skip cyclic checks in item_path

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This seems like it may be likely to cause bugs with `RUST_LOG` and other
"interesting" scenarios, but it removes the usage of `try_get` for now!
This commit is contained in:
Alex Crichton 2017-08-24 07:37:09 -07:00
parent 82bad957c0
commit c77213d0cc
1 changed files with 1 additions and 6 deletions
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7
src/librustc/ty/item_path.rs
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@ -13,7 +13,6 @@ use hir::def_id::{CrateNum, DefId, CRATE_DEF_INDEX, LOCAL_CRATE};
use ty::{self, Ty, TyCtxt};
use syntax::ast;
use syntax::symbol::Symbol;
use syntax_pos::DUMMY_SP;
use std::cell::Cell;
@ -222,11 +221,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
let use_types = !self.is_default_impl(impl_def_id) && (!impl_def_id.is_local() || {
// Otherwise, use filename/line-number if forced.
let force_no_types = FORCE_IMPL_FILENAME_LINE.with(|f| f.get());
!force_no_types && {
// Otherwise, use types if we can query them without inducing a cycle.
ty::queries::impl_trait_ref::try_get(self, DUMMY_SP, impl_def_id).is_ok() &&
ty::queries::type_of::try_get(self, DUMMY_SP, impl_def_id).is_ok()
}
!force_no_types
});
if !use_types {