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Rollup merge of #124214 - carbotaniuman:parse_unsafe_attrs, r=michaelwoerister

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Parse unsafe attributes

Initial parse implementation for #123757

This is the initial work to parse unsafe attributes, which is represented as an extra `unsafety` field in `MetaItem` and `AttrItem`. There's two areas in the code where it appears that parsing is done manually and not using the parser stuff, and I'm not sure how I'm supposed to thread the change there.
This commit is contained in:
Matthias Krüger 2024-06-07 20:14:28 +02:00 • committed by GitHub
commit 6e534c73c3
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36 changed files with 357 additions and 34 deletions
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11
compiler/rustc_ast_pretty/src/pprust/state.rs
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@ -16,7 +16,7 @@ use rustc_ast::token::{self, BinOpToken, CommentKind, Delimiter, Nonterminal, To
use rustc_ast::tokenstream::{Spacing, TokenStream, TokenTree};
use rustc_ast::util::classify;
use rustc_ast::util::comments::{Comment, CommentStyle};
use rustc_ast::{self as ast, AttrArgs, AttrArgsEq, BlockCheckMode, PatKind};
use rustc_ast::{self as ast, AttrArgs, AttrArgsEq, BlockCheckMode, PatKind, Safety};
use rustc_ast::{attr, BindingMode, ByRef, DelimArgs, RangeEnd, RangeSyntax, Term};
use rustc_ast::{GenericArg, GenericBound, SelfKind};
use rustc_ast::{InlineAsmOperand, InlineAsmRegOrRegClass};
@ -249,6 +249,7 @@ pub fn print_crate<'a>(
let fake_attr = attr::mk_attr_nested_word(
g,
ast::AttrStyle::Inner,
Safety::Default,
sym::feature,
sym::prelude_import,
DUMMY_SP,
@ -259,7 +260,13 @@ pub fn print_crate<'a>(
// root, so this is not needed, and actually breaks things.
if edition.is_rust_2015() {
// `#![no_std]`
let fake_attr = attr::mk_attr_word(g, ast::AttrStyle::Inner, sym::no_std, DUMMY_SP);
let fake_attr = attr::mk_attr_word(
g,
ast::AttrStyle::Inner,
Safety::Default,
sym::no_std,
DUMMY_SP,
);
s.print_attribute(&fake_attr);
}
}