diff options
Diffstat (limited to 'compiler/rustc_parse/src')
| -rw-r--r-- | compiler/rustc_parse/src/parser/diagnostics.rs | 58 | ||||
| -rw-r--r-- | compiler/rustc_parse/src/parser/expr.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_parse/src/parser/item.rs | 6 | ||||
| -rw-r--r-- | compiler/rustc_parse/src/parser/mod.rs | 3 | ||||
| -rw-r--r-- | compiler/rustc_parse/src/parser/nonterminal.rs | 5 | ||||
| -rw-r--r-- | compiler/rustc_parse/src/parser/pat.rs | 3 |
6 files changed, 53 insertions, 23 deletions
diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index c2b91488a11..81d5f0fca0e 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -2965,9 +2965,10 @@ impl<'a> Parser<'a> { /// This checks if this is a conflict marker, depending of the parameter passed. /// - /// * `>>>>>` - /// * `=====` - /// * `<<<<<` + /// * `<<<<<<<` + /// * `|||||||` + /// * `=======` + /// * `>>>>>>>` /// pub(super) fn is_vcs_conflict_marker( &mut self, @@ -2997,14 +2998,18 @@ impl<'a> Parser<'a> { } pub(crate) fn err_vcs_conflict_marker(&mut self) -> PResult<'a, ()> { + // <<<<<<< let Some(start) = self.conflict_marker(&TokenKind::BinOp(token::Shl), &TokenKind::Lt) else { return Ok(()); }; let mut spans = Vec::with_capacity(3); spans.push(start); + // ||||||| let mut middlediff3 = None; + // ======= let mut middle = None; + // >>>>>>> let mut end = None; loop { if self.token.kind == TokenKind::Eof { @@ -3025,29 +3030,50 @@ impl<'a> Parser<'a> { } self.bump(); } + let mut err = self.dcx().struct_span_err(spans, "encountered diff marker"); - err.span_label(start, "after this is the code before the merge"); - if let Some(middle) = middlediff3 { - err.span_label(middle, ""); - } + match middlediff3 { + // We're using diff3 + Some(middlediff3) => { + err.span_label( + start, + "between this marker and `|||||||` is the code that we're merging into", + ); + err.span_label(middlediff3, "between this marker and `=======` is the base code (what the two refs diverged from)"); + } + None => { + err.span_label( + start, + "between this marker and `=======` is the code that we're merging into", + ); + } + }; + if let Some(middle) = middle { - err.span_label(middle, ""); + err.span_label(middle, "between this marker and `>>>>>>>` is the incoming code"); } if let Some(end) = end { - err.span_label(end, "above this are the incoming code changes"); + err.span_label(end, "this marker concludes the conflict region"); } - err.help( - "if you're having merge conflicts after pulling new code, the top section is the code \ - you already had and the bottom section is the remote code", + err.note( + "conflict markers indicate that a merge was started but could not be completed due \ + to merge conflicts\n\ + to resolve a conflict, keep only the code you want and then delete the lines \ + containing conflict markers", ); err.help( - "if you're in the middle of a rebase, the top section is the code being rebased onto \ - and the bottom section is the code coming from the current commit being rebased", + "if you're having merge conflicts after pulling new code:\n\ + the top section is the code you already had and the bottom section is the remote code\n\ + if you're in the middle of a rebase:\n\ + the top section is the code being rebased onto and the bottom section is the code \ + coming from the current commit being rebased", ); + err.note( - "for an explanation on these markers from the `git` documentation, visit \ - <https://git-scm.com/book/en/v2/Git-Tools-Advanced-Merging#_checking_out_conflicts>", + "for an explanation on these markers from the `git` documentation:\n\ + visit <https://git-scm.com/book/en/v2/Git-Tools-Advanced-Merging#_checking_out_conflicts>", ); + Err(err) } diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 09f706143fa..9fad954adda 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1,4 +1,5 @@ // ignore-tidy-filelength + use super::diagnostics::SnapshotParser; use super::pat::{CommaRecoveryMode, Expected, RecoverColon, RecoverComma}; use super::ty::{AllowPlus, RecoverQPath, RecoverReturnSign}; diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index 2db777a9f70..abb6b51cebd 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -1228,7 +1228,7 @@ impl<'a> Parser<'a> { ident_span: ident.span, const_span, }); - ForeignItemKind::Static(Box::new(StaticForeignItem { + ForeignItemKind::Static(Box::new(StaticItem { ty, mutability: Mutability::Not, expr, @@ -1259,7 +1259,7 @@ impl<'a> Parser<'a> { self.token.is_keyword(kw::Unsafe) && self.is_keyword_ahead(1, &[kw::Extern]) && self.look_ahead( - 2 + self.look_ahead(2, |t| t.can_begin_literal_maybe_minus() as usize), + 2 + self.look_ahead(2, |t| t.can_begin_string_literal() as usize), |t| t.kind == token::OpenDelim(Delimiter::Brace), ) } @@ -2448,7 +2448,7 @@ impl<'a> Parser<'a> { }) // `extern ABI fn` || self.check_keyword_case(kw::Extern, case) - && self.look_ahead(1, |t| t.can_begin_literal_maybe_minus()) + && self.look_ahead(1, |t| t.can_begin_string_literal()) && (self.look_ahead(2, |t| t.is_keyword_case(kw::Fn, case)) || // this branch is only for better diagnostic in later, `pub` is not allowed here (self.may_recover() diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 2f12459da57..cfd0a72c056 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -1214,6 +1214,9 @@ impl<'a> Parser<'a> { if self.eat_keyword_case(kw::Unsafe, case) { Safety::Unsafe(self.prev_token.uninterpolated_span()) } else if self.eat_keyword_case(kw::Safe, case) { + self.psess + .gated_spans + .gate(sym::unsafe_extern_blocks, self.prev_token.uninterpolated_span()); Safety::Safe(self.prev_token.uninterpolated_span()) } else { Safety::Default diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs index a0b704aeea5..59f6eff07b3 100644 --- a/compiler/rustc_parse/src/parser/nonterminal.rs +++ b/compiler/rustc_parse/src/parser/nonterminal.rs @@ -36,7 +36,7 @@ impl<'a> Parser<'a> { } match kind { - NonterminalKind::Expr2021 => { + NonterminalKind::Expr2021 { inferred: _ } => { token.can_begin_expr() // This exception is here for backwards compatibility. && !token.is_keyword(kw::Let) @@ -47,7 +47,6 @@ impl<'a> Parser<'a> { token.can_begin_expr() // This exception is here for backwards compatibility. && !token.is_keyword(kw::Let) - && (!token.is_keyword(kw::Const) || token.span.edition().at_least_rust_2024()) } NonterminalKind::Ty => token.can_begin_type(), NonterminalKind::Ident => get_macro_ident(token).is_some(), @@ -149,7 +148,7 @@ impl<'a> Parser<'a> { })?) } - NonterminalKind::Expr | NonterminalKind::Expr2021 => { + NonterminalKind::Expr | NonterminalKind::Expr2021 { inferred: _ } => { NtExpr(self.parse_expr_force_collect()?) } NonterminalKind::Literal => { diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs index 03aea0888d9..6f2b7177159 100644 --- a/compiler/rustc_parse/src/parser/pat.rs +++ b/compiler/rustc_parse/src/parser/pat.rs @@ -939,7 +939,8 @@ impl<'a> Parser<'a> { || self.look_ahead(dist, |t| { t.is_path_start() // e.g. `MY_CONST`; || t.kind == token::Dot // e.g. `.5` for recovery; - || t.can_begin_literal_maybe_minus() // e.g. `42`. + || matches!(t.kind, token::Literal(..) | token::BinOp(token::Minus)) + || t.is_bool_lit() || t.is_whole_expr() || t.is_lifetime() // recover `'a` instead of `'a'` || (self.may_recover() // recover leading `(` |