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Swap PredicateObligation to ThinVec

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This commit is contained in:
GnomedDev 2024-10-10 19:56:21 +01:00
parent 7ec06b0d1d
commit 8de8f46f78
12 changed files with 73 additions and 42 deletions
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3
compiler/rustc_data_structures/src/obligation_forest/mod.rs
View file

@ -75,6 +75,7 @@ use std::fmt::Debug;
use std::hash;
use std::marker::PhantomData;
use thin_vec::ThinVec;
use tracing::debug;
use crate::fx::{FxHashMap, FxHashSet};
@ -141,7 +142,7 @@ pub trait ObligationProcessor {
#[derive(Debug)]
pub enum ProcessResult<O, E> {
Unchanged,
Changed(Vec<O>),
Changed(ThinVec<O>),
Error(E),
}

68
compiler/rustc_data_structures/src/obligation_forest/tests.rs
View file

@ -1,5 +1,7 @@
use std::fmt;
use thin_vec::thin_vec;
use super::*;
impl<'a> super::ForestObligation for &'a str {
@ -101,9 +103,9 @@ fn push_pop() {
// |-> A.3
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Changed(vec!["A.1", "A.2", "A.3"]),
"A" => ProcessResult::Changed(thin_vec!["A.1", "A.2", "A.3"]),
"B" => ProcessResult::Error("B is for broken"),
"C" => ProcessResult::Changed(vec![]),
"C" => ProcessResult::Changed(thin_vec![]),
"A.1" | "A.2" | "A.3" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -123,8 +125,8 @@ fn push_pop() {
|obligation| match *obligation {
"A.1" => ProcessResult::Unchanged,
"A.2" => ProcessResult::Unchanged,
"A.3" => ProcessResult::Changed(vec!["A.3.i"]),
"D" => ProcessResult::Changed(vec!["D.1", "D.2"]),
"A.3" => ProcessResult::Changed(thin_vec!["A.3.i"]),
"D" => ProcessResult::Changed(thin_vec!["D.1", "D.2"]),
"A.3.i" | "D.1" | "D.2" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -139,11 +141,11 @@ fn push_pop() {
// |-> D.2 |-> D.2.i
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A.1" => ProcessResult::Changed(vec![]),
"A.1" => ProcessResult::Changed(thin_vec![]),
"A.2" => ProcessResult::Error("A is for apple"),
"A.3.i" => ProcessResult::Changed(vec![]),
"D.1" => ProcessResult::Changed(vec!["D.1.i"]),
"D.2" => ProcessResult::Changed(vec!["D.2.i"]),
"A.3.i" => ProcessResult::Changed(thin_vec![]),
"D.1" => ProcessResult::Changed(thin_vec!["D.1.i"]),
"D.2" => ProcessResult::Changed(thin_vec!["D.2.i"]),
"D.1.i" | "D.2.i" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -158,7 +160,7 @@ fn push_pop() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"D.1.i" => ProcessResult::Error("D is for dumb"),
"D.2.i" => ProcessResult::Changed(vec![]),
"D.2.i" => ProcessResult::Changed(thin_vec![]),
_ => panic!("unexpected obligation {:?}", obligation),
},
|_| {},
@ -184,10 +186,10 @@ fn success_in_grandchildren() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Changed(vec!["A.1", "A.2", "A.3"]),
"A.1" => ProcessResult::Changed(vec![]),
"A.2" => ProcessResult::Changed(vec!["A.2.i", "A.2.ii"]),
"A.3" => ProcessResult::Changed(vec![]),
"A" => ProcessResult::Changed(thin_vec!["A.1", "A.2", "A.3"]),
"A.1" => ProcessResult::Changed(thin_vec![]),
"A.2" => ProcessResult::Changed(thin_vec!["A.2.i", "A.2.ii"]),
"A.3" => ProcessResult::Changed(thin_vec![]),
"A.2.i" | "A.2.ii" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -201,7 +203,7 @@ fn success_in_grandchildren() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A.2.i" => ProcessResult::Unchanged,
"A.2.ii" => ProcessResult::Changed(vec![]),
"A.2.ii" => ProcessResult::Changed(thin_vec![]),
_ => unreachable!(),
},
|_| {},
@ -211,7 +213,7 @@ fn success_in_grandchildren() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A.2.i" => ProcessResult::Changed(vec!["A.2.i.a"]),
"A.2.i" => ProcessResult::Changed(thin_vec!["A.2.i.a"]),
"A.2.i.a" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -222,7 +224,7 @@ fn success_in_grandchildren() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A.2.i.a" => ProcessResult::Changed(vec![]),
"A.2.i.a" => ProcessResult::Changed(thin_vec![]),
_ => unreachable!(),
},
|_| {},
@ -247,7 +249,7 @@ fn to_errors_no_throw() {
forest.register_obligation("A");
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Changed(vec!["A.1", "A.2", "A.3"]),
"A" => ProcessResult::Changed(thin_vec!["A.1", "A.2", "A.3"]),
"A.1" | "A.2" | "A.3" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -269,7 +271,7 @@ fn diamond() {
forest.register_obligation("A");
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Changed(vec!["A.1", "A.2"]),
"A" => ProcessResult::Changed(thin_vec!["A.1", "A.2"]),
"A.1" | "A.2" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -280,8 +282,8 @@ fn diamond() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A.1" => ProcessResult::Changed(vec!["D"]),
"A.2" => ProcessResult::Changed(vec!["D"]),
"A.1" => ProcessResult::Changed(thin_vec!["D"]),
"A.2" => ProcessResult::Changed(thin_vec!["D"]),
"D" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -295,7 +297,7 @@ fn diamond() {
|obligation| match *obligation {
"D" => {
d_count += 1;
ProcessResult::Changed(vec![])
ProcessResult::Changed(thin_vec![])
}
_ => unreachable!(),
},
@ -313,7 +315,7 @@ fn diamond() {
forest.register_obligation("A'");
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A'" => ProcessResult::Changed(vec!["A'.1", "A'.2"]),
"A'" => ProcessResult::Changed(thin_vec!["A'.1", "A'.2"]),
"A'.1" | "A'.2" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -324,8 +326,8 @@ fn diamond() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A'.1" => ProcessResult::Changed(vec!["D'", "A'"]),
"A'.2" => ProcessResult::Changed(vec!["D'"]),
"A'.1" => ProcessResult::Changed(thin_vec!["D'", "A'"]),
"A'.2" => ProcessResult::Changed(thin_vec!["D'"]),
"D'" | "A'" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -366,7 +368,7 @@ fn done_dependency() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A: Sized" | "B: Sized" | "C: Sized" => ProcessResult::Changed(vec![]),
"A: Sized" | "B: Sized" | "C: Sized" => ProcessResult::Changed(thin_vec![]),
_ => unreachable!(),
},
|_| {},
@ -379,7 +381,9 @@ fn done_dependency() {
forest.register_obligation("(A,B,C): Sized");
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"(A,B,C): Sized" => ProcessResult::Changed(vec!["A: Sized", "B: Sized", "C: Sized"]),
"(A,B,C): Sized" => {
ProcessResult::Changed(thin_vec!["A: Sized", "B: Sized", "C: Sized"])
}
_ => unreachable!(),
},
|_| {},
@ -399,10 +403,10 @@ fn orphan() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Changed(vec!["D", "E"]),
"A" => ProcessResult::Changed(thin_vec!["D", "E"]),
"B" => ProcessResult::Unchanged,
"C1" => ProcessResult::Changed(vec![]),
"C2" => ProcessResult::Changed(vec![]),
"C1" => ProcessResult::Changed(thin_vec![]),
"C2" => ProcessResult::Changed(thin_vec![]),
"D" | "E" => ProcessResult::Unchanged,
_ => unreachable!(),
},
@ -416,7 +420,7 @@ fn orphan() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"D" | "E" => ProcessResult::Unchanged,
"B" => ProcessResult::Changed(vec!["D"]),
"B" => ProcessResult::Changed(thin_vec!["D"]),
_ => unreachable!(),
},
|_| {},
@ -459,7 +463,7 @@ fn simultaneous_register_and_error() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Error("An error"),
"B" => ProcessResult::Changed(vec!["A"]),
"B" => ProcessResult::Changed(thin_vec!["A"]),
_ => unreachable!(),
},
|_| {},
@ -474,7 +478,7 @@ fn simultaneous_register_and_error() {
let TestOutcome { completed: ok, errors: err, .. } = forest.process_obligations(&mut C(
|obligation| match *obligation {
"A" => ProcessResult::Error("An error"),
"B" => ProcessResult::Changed(vec!["A"]),
"B" => ProcessResult::Changed(thin_vec!["A"]),
_ => unreachable!(),
},
|_| {},