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Replace a custom lift method with a Lift impl

This commit is contained in:
Oli Scherer 2021-03-10 11:45:22 +00:00
parent 3127a9c60f
commit 20f737966e
2 changed files with 7 additions and 4 deletions
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9
compiler/rustc_middle/src/mir/interpret/value.rs
View File

@ -8,7 +8,7 @@ use rustc_apfloat::{
use rustc_macros::HashStable;
use rustc_target::abi::{HasDataLayout, Size, TargetDataLayout};
use crate::ty::{ParamEnv, ScalarInt, Ty, TyCtxt};
use crate::ty::{Lift, ParamEnv, ScalarInt, Ty, TyCtxt};
use super::{AllocId, Allocation, InterpResult, Pointer, PointerArithmetic};
@ -53,8 +53,9 @@ impl From<Scalar> for ConstValue<'tcx> {
}
}
impl<'tcx> ConstValue<'tcx> {
pub fn lift<'lifted>(self, tcx: TyCtxt<'lifted>) -> Option<ConstValue<'lifted>> {
impl<'a, 'tcx> Lift<'tcx> for ConstValue<'a> {
type Lifted = ConstValue<'tcx>;
fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ConstValue<'tcx>> {
Some(match self {
ConstValue::Scalar(s) => ConstValue::Scalar(s),
ConstValue::Slice { data, start, end } => {
@ -65,7 +66,9 @@ impl<'tcx> ConstValue<'tcx> {
}
})
}
}
impl<'tcx> ConstValue<'tcx> {
#[inline]
pub fn try_to_scalar(&self) -> Option<Scalar> {
match *self {

2
compiler/rustc_middle/src/mir/mod.rs
View File

@ -2738,7 +2738,7 @@ fn pretty_print_const_value(
) -> fmt::Result {
use crate::ty::print::PrettyPrinter;
ty::tls::with(|tcx| {
let val = val.lift(tcx).unwrap();
let val = tcx.lift(val).unwrap();
let ty = tcx.lift(ty).unwrap();
let mut cx = FmtPrinter::new(tcx, fmt, Namespace::ValueNS);
cx.print_alloc_ids = true;