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rustc_errors: let DiagnosticBuilder::emit return a "guarantee of emission".

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This commit is contained in:
Eduard-Mihai Burtescu 2022-01-27 09:44:25 +00:00
parent 0b9d70cf6d
commit b7e95dee65
83 changed files with 842 additions and 471 deletions
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8
compiler/rustc_builtin_macros/src/cfg.rs
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@ -6,7 +6,7 @@ use rustc_ast as ast;
use rustc_ast::token;
use rustc_ast::tokenstream::TokenStream;
use rustc_attr as attr;
use rustc_errors::DiagnosticBuilder;
use rustc_errors::PResult;
use rustc_expand::base::{self, *};
use rustc_span::Span;
@ -29,11 +29,7 @@ pub fn expand_cfg(
}
}
fn parse_cfg<'a>(
cx: &mut ExtCtxt<'a>,
sp: Span,
tts: TokenStream,
) -> Result<ast::MetaItem, DiagnosticBuilder<'a>> {
fn parse_cfg<'a>(cx: &mut ExtCtxt<'a>, sp: Span, tts: TokenStream) -> PResult<'a, ast::MetaItem> {
let mut p = cx.new_parser_from_tts(tts);
if p.token == token::Eof {