Don't normalize obligations in WF goal for the new solver

This commit is contained in:
Michael Goulet 2023-01-24 19:10:56 +00:00
parent b3f0085376
commit 02b80d2f9c
3 changed files with 38 additions and 14 deletions

View File

@ -351,7 +351,7 @@ dependencies = [
"cargo-test-macro",
"cargo-test-support",
"cargo-util",
"clap 4.1.3",
"clap 4.1.4",
"crates-io",
"curl",
"curl-sys",
@ -655,9 +655,9 @@ dependencies = [
[[package]]
name = "clap"
version = "4.1.3"
version = "4.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d8d93d855ce6a0aa87b8473ef9169482f40abaa2e9e0993024c35c902cbd5920"
checksum = "f13b9c79b5d1dd500d20ef541215a6423c75829ef43117e1b4d17fd8af0b5d76"
dependencies = [
"bitflags",
"clap_derive 4.1.0",
@ -675,7 +675,7 @@ version = "4.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "10861370d2ba66b0f5989f83ebf35db6421713fd92351790e7fdd6c36774c56b"
dependencies = [
"clap 4.1.3",
"clap 4.1.4",
]
[[package]]
@ -2294,7 +2294,7 @@ name = "jsondoclint"
version = "0.1.0"
dependencies = [
"anyhow",
"clap 4.1.3",
"clap 4.1.4",
"fs-err",
"rustdoc-json-types",
"serde",
@ -2557,7 +2557,7 @@ dependencies = [
"ammonia",
"anyhow",
"chrono",
"clap 4.1.3",
"clap 4.1.4",
"clap_complete",
"elasticlunr-rs",
"env_logger 0.10.0",
@ -3528,7 +3528,7 @@ dependencies = [
name = "rustbook"
version = "0.1.0"
dependencies = [
"clap 4.1.3",
"clap 4.1.4",
"env_logger 0.7.1",
"mdbook",
]

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@ -20,7 +20,6 @@
use std::mem;
use rustc_hir::def_id::DefId;
use rustc_hir::CRATE_HIR_ID;
use rustc_infer::infer::canonical::{Canonical, CanonicalVarKind, CanonicalVarValues};
use rustc_infer::infer::canonical::{OriginalQueryValues, QueryRegionConstraints, QueryResponse};
use rustc_infer::infer::{InferCtxt, InferOk, TyCtxtInferExt};
@ -380,13 +379,10 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> {
goal: Goal<'tcx, ty::GenericArg<'tcx>>,
) -> QueryResult<'tcx> {
self.infcx.probe(|_| {
match crate::traits::wf::obligations(
match crate::traits::wf::unnormalized_obligations(
self.infcx,
goal.param_env,
CRATE_HIR_ID, // FIXME body id
0,
goal.predicate,
DUMMY_SP,
) {
Some(obligations) => self.evaluate_all_and_make_canonical_response(
obligations.into_iter().map(|o| o.into()).collect(),

View File

@ -4,8 +4,8 @@ use rustc_hir as hir;
use rustc_hir::lang_items::LangItem;
use rustc_middle::ty::subst::{GenericArg, GenericArgKind, SubstsRef};
use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitable};
use rustc_span::def_id::{DefId, LocalDefId};
use rustc_span::Span;
use rustc_span::def_id::{DefId, LocalDefId, CRATE_DEF_ID};
use rustc_span::{Span, DUMMY_SP};
use std::iter;
/// Returns the set of obligations needed to make `arg` well-formed.
@ -75,6 +75,34 @@ pub fn obligations<'tcx>(
Some(result)
}
/// Compute the predicates that are required for a type to be well-formed.
///
/// This is only intended to be used in the new solver, since it does not
/// take into account recursion depth or proper error-reporting spans.
pub fn unnormalized_obligations<'tcx>(
infcx: &InferCtxt<'tcx>,
param_env: ty::ParamEnv<'tcx>,
arg: GenericArg<'tcx>,
) -> Option<Vec<traits::PredicateObligation<'tcx>>> {
if let ty::GenericArgKind::Lifetime(..) = arg.unpack() {
return Some(vec![]);
}
debug_assert_eq!(arg, infcx.resolve_vars_if_possible(arg));
let mut wf = WfPredicates {
tcx: infcx.tcx,
param_env,
body_id: CRATE_DEF_ID,
span: DUMMY_SP,
out: vec![],
recursion_depth: 0,
item: None,
};
wf.compute(arg);
Some(wf.out)
}
/// Returns the obligations that make this trait reference
/// well-formed. For example, if there is a trait `Set` defined like
/// `trait Set<K:Eq>`, then the trait reference `Foo: Set<Bar>` is WF