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Rollup merge of #102493 - nnethercote:improve-size-assertions-some-more, r=lqd

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Group together more size assertions.

Also add a few more assertions for some relevant token-related types.

And fix an erroneous comment in `rustc_errors`.

r? `@lqd`
This commit is contained in:
Matthias Krüger 2022-09-30 23:38:27 +02:00 • committed by GitHub
commit eaf1c7a0da
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 37 additions and 25 deletions
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21
compiler/rustc_ast/src/token.rs
View file

@ -256,10 +256,6 @@ pub enum TokenKind {
Eof,
}
// `TokenKind` is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
rustc_data_structures::static_assert_size!(TokenKind, 16);
#[derive(Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)]
pub struct Token {
pub kind: TokenKind,
@ -752,10 +748,6 @@ pub enum Nonterminal {
NtVis(P<ast::Visibility>),
}
// `Nonterminal` is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
rustc_data_structures::static_assert_size!(Nonterminal, 16);
#[derive(Debug, Copy, Clone, PartialEq, Encodable, Decodable)]
pub enum NonterminalKind {
Item,
@ -894,3 +886,16 @@ where
panic!("interpolated tokens should not be present in the HIR")
}
}
// Some types are used a lot. Make sure they don't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
mod size_asserts {
use super::*;
use rustc_data_structures::static_assert_size;
// These are in alphabetical order, which is easy to maintain.
static_assert_size!(Lit, 12);
static_assert_size!(LitKind, 2);
static_assert_size!(Nonterminal, 16);
static_assert_size!(Token, 24);
static_assert_size!(TokenKind, 16);
}

21
compiler/rustc_ast/src/tokenstream.rs
View file

@ -47,10 +47,6 @@ pub enum TokenTree {
Delimited(DelimSpan, Delimiter, TokenStream),
}
// This type is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
rustc_data_structures::static_assert_size!(TokenTree, 32);
// Ensure all fields of `TokenTree` is `Send` and `Sync`.
#[cfg(parallel_compiler)]
fn _dummy()
@ -308,10 +304,6 @@ pub struct AttributesData {
#[derive(Clone, Debug, Default, Encodable, Decodable)]
pub struct TokenStream(pub(crate) Lrc<Vec<TokenTree>>);
// `TokenStream` is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
rustc_data_structures::static_assert_size!(TokenStream, 8);
#[derive(Clone, Copy, Debug, PartialEq, Encodable, Decodable, HashStable_Generic)]
pub enum Spacing {
Alone,
@ -664,3 +656,16 @@ impl DelimSpan {
self.open.with_hi(self.close.hi())
}
}
// Some types are used a lot. Make sure they don't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
mod size_asserts {
use super::*;
use rustc_data_structures::static_assert_size;
// These are in alphabetical order, which is easy to maintain.
static_assert_size!(AttrTokenStream, 8);
static_assert_size!(AttrTokenTree, 32);
static_assert_size!(LazyAttrTokenStream, 8);
static_assert_size!(TokenStream, 8);
static_assert_size!(TokenTree, 32);
}