diff options
Diffstat (limited to 'compiler/rustc_parse/src/parser/path.rs')
| -rw-r--r-- | compiler/rustc_parse/src/parser/path.rs | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/compiler/rustc_parse/src/parser/path.rs b/compiler/rustc_parse/src/parser/path.rs index c24305ea9a8..9c6830c3672 100644 --- a/compiler/rustc_parse/src/parser/path.rs +++ b/compiler/rustc_parse/src/parser/path.rs @@ -15,9 +15,9 @@ use tracing::debug; use super::ty::{AllowPlus, RecoverQPath, RecoverReturnSign}; use super::{Parser, Restrictions, TokenType}; -use crate::errors::{PathSingleColon, PathTripleColon}; +use crate::errors::{self, PathSingleColon, PathTripleColon}; +use crate::exp; use crate::parser::{CommaRecoveryMode, RecoverColon, RecoverComma}; -use crate::{errors, exp, maybe_whole}; /// Specifies how to parse a path. #[derive(Copy, Clone, PartialEq)] @@ -194,7 +194,11 @@ impl<'a> Parser<'a> { } }; - maybe_whole!(self, NtPath, |path| reject_generics_if_mod_style(self, path.into_inner())); + if let Some(path) = + self.eat_metavar_seq(MetaVarKind::Path, |this| this.parse_path(PathStyle::Type)) + { + return Ok(reject_generics_if_mod_style(self, path)); + } // If we have a `ty` metavar in the form of a path, reparse it directly as a path, instead // of reparsing it as a `ty` and then extracting the path. @@ -301,10 +305,7 @@ impl<'a> Parser<'a> { let is_args_start = |token: &Token| { matches!( token.kind, - token::Lt - | token::BinOp(token::Shl) - | token::OpenDelim(Delimiter::Parenthesis) - | token::LArrow + token::Lt | token::Shl | token::OpenDelim(Delimiter::Parenthesis) | token::LArrow ) }; let check_args_start = |this: &mut Self| { @@ -378,11 +379,14 @@ impl<'a> Parser<'a> { self.psess.gated_spans.gate(sym::return_type_notation, span); + let prev_lo = self.prev_token.span.shrink_to_hi(); if self.eat_noexpect(&token::RArrow) { let lo = self.prev_token.span; let ty = self.parse_ty()?; + let span = lo.to(ty.span); + let suggestion = prev_lo.to(ty.span); self.dcx() - .emit_err(errors::BadReturnTypeNotationOutput { span: lo.to(ty.span) }); + .emit_err(errors::BadReturnTypeNotationOutput { span, suggestion }); } P(ast::GenericArgs::ParenthesizedElided(span)) |