24 lines
686 B
Rust
24 lines
686 B
Rust
use crate::infer::canonical::{Canonicalized, CanonicalizedQueryResponse};
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use crate::traits::query::Fallible;
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use rustc::ty::{ParamEnvAnd, TyCtxt};
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pub use rustc::traits::query::type_op::AscribeUserType;
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impl<'tcx> super::QueryTypeOp<'tcx> for AscribeUserType<'tcx> {
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type QueryResponse = ();
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fn try_fast_path(
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_tcx: TyCtxt<'tcx>,
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_key: &ParamEnvAnd<'tcx, Self>,
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) -> Option<Self::QueryResponse> {
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None
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}
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fn perform_query(
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tcx: TyCtxt<'tcx>,
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canonicalized: Canonicalized<'tcx, ParamEnvAnd<'tcx, Self>>,
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) -> Fallible<CanonicalizedQueryResponse<'tcx, ()>> {
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tcx.type_op_ascribe_user_type(canonicalized)
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}
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}
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