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Share Tag2 impl between CopyTaggedPtr and TaggedPtr tests

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This commit is contained in:
Maybe Waffle 2023-04-14 11:09:26 +00:00
parent 8d49e948a8
commit 251f662e4d
3 changed files with 31 additions and 62 deletions
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29
compiler/rustc_data_structures/src/tagged_ptr.rs
View File

@ -232,3 +232,32 @@ pub const fn bits_for<T: ?Sized + Aligned>() -> usize {
bits as usize
}
/// A tag type used in [`CopyTaggedPtr`] and [`TaggedPtr`] tests.
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
#[cfg(test)]
enum Tag2 {
B00 = 0b00,
B01 = 0b01,
B10 = 0b10,
B11 = 0b11,
}
#[cfg(test)]
unsafe impl Tag for Tag2 {
const BITS: usize = 2;
fn into_usize(self) -> usize {
self as _
}
unsafe fn from_usize(tag: usize) -> Self {
match tag {
0b00 => Tag2::B00,
0b01 => Tag2::B01,
0b10 => Tag2::B10,
0b11 => Tag2::B11,
_ => unreachable!(),
}
}
}

32
compiler/rustc_data_structures/src/tagged_ptr/copy/tests.rs
View File

@ -1,36 +1,6 @@
use std::ptr;
use crate::tagged_ptr::{CopyTaggedPtr, Pointer, Tag};
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
enum Tag2 {
B00 = 0b00,
B01 = 0b01,
B10 = 0b10,
B11 = 0b11,
}
unsafe impl Tag for Tag2 {
const BITS: usize = 2;
fn into_usize(self) -> usize {
self as _
}
unsafe fn from_usize(tag: usize) -> Self {
const B00: usize = Tag2::B00 as _;
const B01: usize = Tag2::B01 as _;
const B10: usize = Tag2::B10 as _;
const B11: usize = Tag2::B11 as _;
match tag {
B00 => Tag2::B00,
B01 => Tag2::B01,
B10 => Tag2::B10,
B11 => Tag2::B11,
_ => unreachable!(),
}
}
}
use crate::tagged_ptr::{CopyTaggedPtr, Pointer, Tag, Tag2};
#[test]
fn smoke() {

32
compiler/rustc_data_structures/src/tagged_ptr/drop/tests.rs
View File

@ -1,36 +1,6 @@
use std::{ptr, sync::Arc};
use crate::tagged_ptr::{Pointer, Tag, TaggedPtr};
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
enum Tag2 {
B00 = 0b00,
B01 = 0b01,
B10 = 0b10,
B11 = 0b11,
}
unsafe impl Tag for Tag2 {
const BITS: usize = 2;
fn into_usize(self) -> usize {
self as _
}
unsafe fn from_usize(tag: usize) -> Self {
const B00: usize = Tag2::B00 as _;
const B01: usize = Tag2::B01 as _;
const B10: usize = Tag2::B10 as _;
const B11: usize = Tag2::B11 as _;
match tag {
B00 => Tag2::B00,
B01 => Tag2::B01,
B10 => Tag2::B10,
B11 => Tag2::B11,
_ => unreachable!(),
}
}
}
use crate::tagged_ptr::{Pointer, Tag, Tag2, TaggedPtr};
#[test]
fn smoke() {