bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Use ast::NestedMetaItem when evaluating cfg predicate

Browse source
This commit is contained in:
Urgau 2024-09-18 17:44:32 +02:00
parent c3ce4e66a5
commit 57b9b1f974
11 changed files with 62 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

9
compiler/rustc_builtin_macros/src/cfg.rs
View file

@ -6,7 +6,6 @@ use rustc_ast::token;
use rustc_ast::tokenstream::TokenStream;
use rustc_errors::PResult;
use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult};
use rustc_parse::parser::attr::AllowLeadingUnsafe;
use rustc_span::Span;
use {rustc_ast as ast, rustc_attr as attr};
@ -36,14 +35,18 @@ pub(crate) fn expand_cfg(
})
}
fn parse_cfg<'a>(cx: &ExtCtxt<'a>, span: Span, tts: TokenStream) -> PResult<'a, ast::MetaItem> {
fn parse_cfg<'a>(
cx: &ExtCtxt<'a>,
span: Span,
tts: TokenStream,
) -> PResult<'a, ast::NestedMetaItem> {
let mut p = cx.new_parser_from_tts(tts);
if p.token == token::Eof {
return Err(cx.dcx().create_err(errors::RequiresCfgPattern { span }));
}
let cfg = p.parse_meta_item(AllowLeadingUnsafe::No)?;
let cfg = p.parse_meta_item_inner()?;
let _ = p.eat(&token::Comma);