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| author | Nicholas Nethercote <n.nethercote@gmail.com> | 2024-04-18 21:31:17 +1000 |
|---|---|---|
| committer | Nicholas Nethercote <n.nethercote@gmail.com> | 2025-04-02 06:20:35 +1100 |
| commit | 49ed25b5d2d5dc88f9fa3e268d9bd210acc875de (patch) | |
| tree | 5a204468aeb40c13eb3fc701f31e47d925707eb2 | |
| parent | 0b4a81a4ef637117b365c3c51a5326f1c4a90ded (diff) | |
| download | rust-49ed25b5d2d5dc88f9fa3e268d9bd210acc875de.tar.gz rust-49ed25b5d2d5dc88f9fa3e268d9bd210acc875de.zip | |
Remove `NtExpr` and `NtLiteral`.
Notes about tests: - tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs: some messages are now duplicated due to repeated parsing. - tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs: ditto. - `tests/ui/proc-macro/macro-rules-derive-cfg.rs`: the diff looks large but the only difference is the insertion of a single invisible-delimited group around a metavar. - `tests/ui/attributes/nonterminal-expansion.rs`: a slight span degradation, somehow related to the recent massive attr parsing rewrite (#135726). I couldn't work out exactly what is going wrong, but I don't think it's worth holding things up for a single slightly suboptimal error message.
30 files changed, 801 insertions, 585 deletions
diff --git a/compiler/rustc_ast/src/ast_traits.rs b/compiler/rustc_ast/src/ast_traits.rs index 849cc650e9d..c9e2e9911ef 100644 --- a/compiler/rustc_ast/src/ast_traits.rs +++ b/compiler/rustc_ast/src/ast_traits.rs @@ -209,13 +209,11 @@ impl HasTokens for Attribute { impl HasTokens for Nonterminal { fn tokens(&self) -> Option<&LazyAttrTokenStream> { match self { - Nonterminal::NtExpr(expr) | Nonterminal::NtLiteral(expr) => expr.tokens(), Nonterminal::NtBlock(block) => block.tokens(), } } fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>> { match self { - Nonterminal::NtExpr(expr) | Nonterminal::NtLiteral(expr) => expr.tokens_mut(), Nonterminal::NtBlock(block) => block.tokens_mut(), } } diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 30af6d910bf..f7d13acdfc4 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -899,8 +899,6 @@ pub fn visit_token<T: MutVisitor>(vis: &mut T, t: &mut Token) { fn visit_nonterminal<T: MutVisitor>(vis: &mut T, nt: &mut token::Nonterminal) { match nt { token::NtBlock(block) => vis.visit_block(block), - token::NtExpr(expr) => vis.visit_expr(expr), - token::NtLiteral(expr) => vis.visit_expr(expr), } } diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs index 6e6f0f1b266..2081777fff3 100644 --- a/compiler/rustc_ast/src/token.rs +++ b/compiler/rustc_ast/src/token.rs @@ -198,16 +198,17 @@ impl Lit { } } - /// Keep this in sync with `Token::can_begin_literal_maybe_minus` excluding unary negation. + /// Keep this in sync with `Token::can_begin_literal_maybe_minus` and + /// `Parser::eat_token_lit` (excluding unary negation). pub fn from_token(token: &Token) -> Option<Lit> { match token.uninterpolate().kind { Ident(name, IdentIsRaw::No) if name.is_bool_lit() => Some(Lit::new(Bool, name, None)), Literal(token_lit) => Some(token_lit), - Interpolated(ref nt) - if let NtExpr(expr) | NtLiteral(expr) = &**nt - && let ast::ExprKind::Lit(token_lit) = expr.kind => - { - Some(token_lit) + OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( + MetaVarKind::Literal | MetaVarKind::Expr { .. }, + ))) => { + // Unreachable with the current test suite. + panic!("from_token metavar"); } _ => None, } @@ -590,6 +591,9 @@ impl Token { /// for which spans affect name resolution and edition checks. /// Note that keywords are also identifiers, so they should use this /// if they keep spans or perform edition checks. + // + // Note: `Parser::uninterpolated_token_span` may give better information + // than this method does. pub fn uninterpolated_span(&self) -> Span { match self.kind { NtIdent(ident, _) | NtLifetime(ident, _) => ident.span, @@ -642,12 +646,7 @@ impl Token { PathSep | // global path Lifetime(..) | // labeled loop Pound => true, // expression attributes - Interpolated(ref nt) => - matches!(&**nt, - NtBlock(..) | - NtExpr(..) | - NtLiteral(..) - ), + Interpolated(ref nt) => matches!(&**nt, NtBlock(..)), OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( MetaVarKind::Block | MetaVarKind::Expr { .. } | @@ -677,11 +676,6 @@ impl Token { Lt | // path (UFCS constant) Shl => true, // path (double UFCS) Or => matches!(pat_kind, PatWithOr), // leading vert `|` or-pattern - Interpolated(nt) => - matches!(&**nt, - | NtExpr(..) - | NtLiteral(..) - ), OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( MetaVarKind::Expr { .. } | MetaVarKind::Literal | @@ -724,7 +718,7 @@ impl Token { match self.kind { OpenDelim(Delimiter::Brace) | Literal(..) | Minus => true, Ident(name, IdentIsRaw::No) if name.is_bool_lit() => true, - Interpolated(ref nt) => matches!(&**nt, NtExpr(..) | NtBlock(..) | NtLiteral(..)), + Interpolated(ref nt) => matches!(&**nt, NtBlock(..)), OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( MetaVarKind::Expr { .. } | MetaVarKind::Block | MetaVarKind::Literal, ))) => true, @@ -768,22 +762,12 @@ impl Token { /// /// In other words, would this token be a valid start of `parse_literal_maybe_minus`? /// - /// Keep this in sync with and `Lit::from_token`, excluding unary negation. + /// Keep this in sync with `Lit::from_token` and `Parser::eat_token_lit` + /// (excluding unary negation). pub fn can_begin_literal_maybe_minus(&self) -> bool { match self.uninterpolate().kind { Literal(..) | Minus => true, Ident(name, IdentIsRaw::No) if name.is_bool_lit() => true, - Interpolated(ref nt) => match &**nt { - NtLiteral(_) => true, - NtExpr(e) => match &e.kind { - ast::ExprKind::Lit(_) => true, - ast::ExprKind::Unary(ast::UnOp::Neg, e) => { - matches!(&e.kind, ast::ExprKind::Lit(_)) - } - _ => false, - }, - _ => false, - }, OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(mv_kind))) => match mv_kind { MetaVarKind::Literal => true, MetaVarKind::Expr { can_begin_literal_maybe_minus, .. } => { @@ -798,14 +782,6 @@ impl Token { pub fn can_begin_string_literal(&self) -> bool { match self.uninterpolate().kind { Literal(..) => true, - Interpolated(ref nt) => match &**nt { - NtLiteral(_) => true, - NtExpr(e) => match &e.kind { - ast::ExprKind::Lit(_) => true, - _ => false, - }, - _ => false, - }, OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(mv_kind))) => match mv_kind { MetaVarKind::Literal => true, MetaVarKind::Expr { can_begin_string_literal, .. } => can_begin_string_literal, @@ -869,12 +845,17 @@ impl Token { /// Is this a pre-parsed expression dropped into the token stream /// (which happens while parsing the result of macro expansion)? - pub fn is_whole_expr(&self) -> bool { + pub fn is_metavar_expr(&self) -> bool { #[allow(irrefutable_let_patterns)] // FIXME: temporary if let Interpolated(nt) = &self.kind - && let NtExpr(_) | NtLiteral(_) | NtBlock(_) = &**nt + && let NtBlock(_) = &**nt { true + } else if matches!( + self.is_metavar_seq(), + Some(MetaVarKind::Expr { .. } | MetaVarKind::Literal | MetaVarKind::Path) + ) { + true } else { matches!(self.is_metavar_seq(), Some(MetaVarKind::Path)) } @@ -882,6 +863,7 @@ impl Token { /// Is the token an interpolated block (`$b:block`)? pub fn is_whole_block(&self) -> bool { + #[allow(irrefutable_let_patterns)] // FIXME: temporary if let Interpolated(nt) = &self.kind && let NtBlock(..) = &**nt { @@ -1100,8 +1082,6 @@ pub enum NtExprKind { /// For interpolation during macro expansion. pub enum Nonterminal { NtBlock(P<ast::Block>), - NtExpr(P<ast::Expr>), - NtLiteral(P<ast::Expr>), } #[derive(Debug, Copy, Clone, PartialEq, Eq, Encodable, Decodable, Hash, HashStable_Generic)] @@ -1191,15 +1171,12 @@ impl Nonterminal { pub fn use_span(&self) -> Span { match self { NtBlock(block) => block.span, - NtExpr(expr) | NtLiteral(expr) => expr.span, } } pub fn descr(&self) -> &'static str { match self { NtBlock(..) => "block", - NtExpr(..) => "expression", - NtLiteral(..) => "literal", } } } @@ -1218,8 +1195,6 @@ impl fmt::Debug for Nonterminal { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { NtBlock(..) => f.pad("NtBlock(..)"), - NtExpr(..) => f.pad("NtExpr(..)"), - NtLiteral(..) => f.pad("NtLiteral(..)"), } } } @@ -1242,7 +1217,7 @@ mod size_asserts { // tidy-alphabetical-start static_assert_size!(Lit, 12); static_assert_size!(LitKind, 2); - static_assert_size!(Nonterminal, 16); + static_assert_size!(Nonterminal, 8); static_assert_size!(Token, 24); static_assert_size!(TokenKind, 16); // tidy-alphabetical-end diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs index bdd244be6d1..161f8e67551 100644 --- a/compiler/rustc_ast/src/tokenstream.rs +++ b/compiler/rustc_ast/src/tokenstream.rs @@ -462,7 +462,6 @@ impl TokenStream { pub fn from_nonterminal_ast(nt: &Nonterminal) -> TokenStream { match nt { Nonterminal::NtBlock(block) => TokenStream::from_ast(block), - Nonterminal::NtExpr(expr) | Nonterminal::NtLiteral(expr) => TokenStream::from_ast(expr), } } diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs index cffa4af6ac3..6e47ed6eb67 100644 --- a/compiler/rustc_expand/src/mbe/transcribe.rs +++ b/compiler/rustc_expand/src/mbe/transcribe.rs @@ -3,11 +3,10 @@ use std::sync::Arc; use rustc_ast::mut_visit::{self, MutVisitor}; use rustc_ast::token::{ - self, Delimiter, IdentIsRaw, InvisibleOrigin, Lit, LitKind, MetaVarKind, Nonterminal, Token, - TokenKind, + self, Delimiter, IdentIsRaw, InvisibleOrigin, Lit, LitKind, MetaVarKind, Token, TokenKind, }; use rustc_ast::tokenstream::{DelimSpacing, DelimSpan, Spacing, TokenStream, TokenTree}; -use rustc_ast::{ExprKind, StmtKind, TyKind}; +use rustc_ast::{ExprKind, StmtKind, TyKind, UnOp}; use rustc_data_structures::fx::FxHashMap; use rustc_errors::{Diag, DiagCtxtHandle, PResult, pluralize}; use rustc_parse::lexer::nfc_normalize; @@ -340,6 +339,30 @@ pub(super) fn transcribe<'a>( MetaVarKind::Pat(*pat_kind), TokenStream::from_ast(pat), ), + MatchedSingle(ParseNtResult::Expr(expr, kind)) => { + let (can_begin_literal_maybe_minus, can_begin_string_literal) = + match &expr.kind { + ExprKind::Lit(_) => (true, true), + ExprKind::Unary(UnOp::Neg, e) + if matches!(&e.kind, ExprKind::Lit(_)) => + { + (true, false) + } + _ => (false, false), + }; + mk_delimited( + expr.span, + MetaVarKind::Expr { + kind: *kind, + can_begin_literal_maybe_minus, + can_begin_string_literal, + }, + TokenStream::from_ast(expr), + ) + } + MatchedSingle(ParseNtResult::Literal(lit)) => { + mk_delimited(lit.span, MetaVarKind::Literal, TokenStream::from_ast(lit)) + } MatchedSingle(ParseNtResult::Ty(ty)) => { let is_path = matches!(&ty.kind, TyKind::Path(None, _path)); mk_delimited( @@ -869,10 +892,8 @@ fn extract_symbol_from_pnr<'a>( }, _, )) => Ok(*symbol), - ParseNtResult::Nt(nt) - if let Nonterminal::NtLiteral(expr) = &**nt - && let ExprKind::Lit(Lit { kind: LitKind::Str, symbol, suffix: None }) = - &expr.kind => + ParseNtResult::Literal(expr) + if let ExprKind::Lit(Lit { kind: LitKind::Str, symbol, suffix: None }) = &expr.kind => { Ok(*symbol) } diff --git a/compiler/rustc_parse/messages.ftl b/compiler/rustc_parse/messages.ftl index 24679692a0b..93fa89b68b9 100644 --- a/compiler/rustc_parse/messages.ftl +++ b/compiler/rustc_parse/messages.ftl @@ -858,7 +858,7 @@ parse_unexpected_parentheses_in_match_arm_pattern = unexpected parentheses surro parse_unexpected_self_in_generic_parameters = unexpected keyword `Self` in generic parameters .note = you cannot use `Self` as a generic parameter because it is reserved for associated items -parse_unexpected_token_after_dot = unexpected token: `{$actual}` +parse_unexpected_token_after_dot = unexpected token: {$actual} parse_unexpected_token_after_label = expected `while`, `for`, `loop` or `{"{"}` after a label .suggestion_remove_label = consider removing the label diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 55cb7687823..dfdef018bc3 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -1696,10 +1696,10 @@ pub(crate) struct SelfArgumentPointer { #[derive(Diagnostic)] #[diag(parse_unexpected_token_after_dot)] -pub(crate) struct UnexpectedTokenAfterDot<'a> { +pub(crate) struct UnexpectedTokenAfterDot { #[primary_span] pub span: Span, - pub actual: Cow<'a, str>, + pub actual: String, } #[derive(Diagnostic)] diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 00e75cc2c2f..424fee968e1 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -4,10 +4,10 @@ use core::mem; use core::ops::{Bound, ControlFlow}; use ast::mut_visit::{self, MutVisitor}; -use ast::token::{IdentIsRaw, MetaVarKind}; +use ast::token::IdentIsRaw; use ast::{CoroutineKind, ForLoopKind, GenBlockKind, MatchKind, Pat, Path, PathSegment, Recovered}; use rustc_ast::ptr::P; -use rustc_ast::token::{self, Delimiter, Token, TokenKind}; +use rustc_ast::token::{self, Delimiter, InvisibleOrigin, MetaVarKind, Token, TokenKind}; use rustc_ast::tokenstream::TokenTree; use rustc_ast::util::case::Case; use rustc_ast::util::classify; @@ -19,7 +19,6 @@ use rustc_ast::{ MetaItemLit, Movability, Param, RangeLimits, StmtKind, Ty, TyKind, UnOp, UnsafeBinderCastKind, YieldKind, }; -use rustc_ast_pretty::pprust; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::{Applicability, Diag, PResult, StashKey, Subdiagnostic}; use rustc_lexer::unescape::unescape_char; @@ -605,7 +604,7 @@ impl<'a> Parser<'a> { // can't continue an expression after an ident token::Ident(name, is_raw) => token::ident_can_begin_expr(name, t.span, is_raw), token::Literal(..) | token::Pound => true, - _ => t.is_whole_expr(), + _ => t.is_metavar_expr(), }; self.token.is_ident_named(sym::not) && self.look_ahead(1, token_cannot_continue_expr) } @@ -641,6 +640,13 @@ impl<'a> Parser<'a> { TokenKind::NtIdent(..) | TokenKind::NtLifetime(..) | TokenKind::Interpolated(..) => { self.prev_token.span } + TokenKind::CloseDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(_))) => { + // `expr.span` is the interpolated span, because invisible open + // and close delims both get marked with the same span, one + // that covers the entire thing between them. (See + // `rustc_expand::mbe::transcribe::transcribe`.) + self.prev_token.span + } _ => expr.span, } } @@ -979,12 +985,30 @@ impl<'a> Parser<'a> { } fn error_unexpected_after_dot(&self) { - let actual = pprust::token_to_string(&self.token); + let actual = super::token_descr(&self.token); let span = self.token.span; let sm = self.psess.source_map(); let (span, actual) = match (&self.token.kind, self.subparser_name) { - (token::Eof, Some(_)) if let Ok(actual) = sm.span_to_snippet(sm.next_point(span)) => { - (span.shrink_to_hi(), actual.into()) + (token::Eof, Some(_)) if let Ok(snippet) = sm.span_to_snippet(sm.next_point(span)) => { + (span.shrink_to_hi(), format!("`{}`", snippet)) + } + (token::CloseDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(_))), _) => { + // No need to report an error. This case will only occur when parsing a pasted + // metavariable, and we should have emitted an error when parsing the macro call in + // the first place. E.g. in this code: + // ``` + // macro_rules! m { ($e:expr) => { $e }; } + // + // fn main() { + // let f = 1; + // m!(f.); + // } + // ``` + // we'll get an error "unexpected token: `)` when parsing the `m!(f.)`, so we don't + // want to issue a second error when parsing the expansion `«f.»` (where `«`/`»` + // represent the invisible delimiters). + self.dcx().span_delayed_bug(span, "bad dot expr in metavariable"); + return; } _ => (span, actual), }; @@ -1364,17 +1388,31 @@ impl<'a> Parser<'a> { let span = self.token.span; if let token::Interpolated(nt) = &self.token.kind { match &**nt { - token::NtExpr(e) | token::NtLiteral(e) => { - let e = e.clone(); - self.bump(); - return Ok(e); - } token::NtBlock(block) => { let block = block.clone(); self.bump(); return Ok(self.mk_expr(self.prev_token.span, ExprKind::Block(block, None))); } }; + } else if let Some(expr) = self.eat_metavar_seq_with_matcher( + |mv_kind| matches!(mv_kind, MetaVarKind::Expr { .. }), + |this| { + let expr = this.parse_expr(); + // FIXME(nnethercote) Sometimes with expressions we get a trailing comma, possibly + // related to the FIXME in `collect_tokens_for_expr`. Examples are the multi-line + // `assert_eq!` calls involving arguments annotated with `#[rustfmt::skip]` in + // `compiler/rustc_index/src/bit_set/tests.rs`. + if this.token.kind == token::Comma { + this.bump(); + } + expr + }, + ) { + return Ok(expr); + } else if let Some(lit) = + self.eat_metavar_seq(MetaVarKind::Literal, |this| this.parse_literal_maybe_minus()) + { + return Ok(lit); } else if let Some(path) = self.eat_metavar_seq(MetaVarKind::Path, |this| { this.collect_tokens_no_attrs(|this| this.parse_path(PathStyle::Type)) }) { @@ -2062,87 +2100,107 @@ impl<'a> Parser<'a> { .or_else(|()| self.handle_missing_lit(Parser::mk_meta_item_lit_char)) } - fn recover_after_dot(&mut self) -> Option<Token> { - let mut recovered = None; + fn recover_after_dot(&mut self) { if self.token == token::Dot { // Attempt to recover `.4` as `0.4`. We don't currently have any syntax where // dot would follow an optional literal, so we do this unconditionally. - recovered = self.look_ahead(1, |next_token| { + let recovered = self.look_ahead(1, |next_token| { + // If it's an integer that looks like a float, then recover as such. + // + // We will never encounter the exponent part of a floating + // point literal here, since there's no use of the exponent + // syntax that also constitutes a valid integer, so we need + // not check for that. if let token::Literal(token::Lit { kind: token::Integer, symbol, suffix }) = next_token.kind + && suffix.is_none_or(|s| s == sym::f32 || s == sym::f64) + && symbol.as_str().chars().all(|c| c.is_numeric() || c == '_') + && self.token.span.hi() == next_token.span.lo() { - // If this integer looks like a float, then recover as such. - // - // We will never encounter the exponent part of a floating - // point literal here, since there's no use of the exponent - // syntax that also constitutes a valid integer, so we need - // not check for that. - if suffix.is_none_or(|s| s == sym::f32 || s == sym::f64) - && symbol.as_str().chars().all(|c| c.is_numeric() || c == '_') - && self.token.span.hi() == next_token.span.lo() - { - let s = String::from("0.") + symbol.as_str(); - let kind = TokenKind::lit(token::Float, Symbol::intern(&s), suffix); - return Some(Token::new(kind, self.token.span.to(next_token.span))); - } + let s = String::from("0.") + symbol.as_str(); + let kind = TokenKind::lit(token::Float, Symbol::intern(&s), suffix); + Some(Token::new(kind, self.token.span.to(next_token.span))) + } else { + None } - None }); - if let Some(token) = &recovered { - self.bump(); + if let Some(recovered) = recovered { self.dcx().emit_err(errors::FloatLiteralRequiresIntegerPart { - span: token.span, - suggestion: token.span.shrink_to_lo(), + span: recovered.span, + suggestion: recovered.span.shrink_to_lo(), }); + self.bump(); + self.token = recovered; } } + } - recovered + /// Keep this in sync with `Token::can_begin_literal_maybe_minus` and + /// `Lit::from_token` (excluding unary negation). + fn eat_token_lit(&mut self) -> Option<token::Lit> { + match self.token.uninterpolate().kind { + token::Ident(name, IdentIsRaw::No) if name.is_bool_lit() => { + self.bump(); + Some(token::Lit::new(token::Bool, name, None)) + } + token::Literal(token_lit) => { + self.bump(); + Some(token_lit) + } + token::OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( + MetaVarKind::Literal, + ))) => { + let lit = self + .eat_metavar_seq(MetaVarKind::Literal, |this| this.parse_literal_maybe_minus()) + .expect("metavar seq literal"); + let ast::ExprKind::Lit(token_lit) = lit.kind else { + panic!("didn't reparse a literal"); + }; + Some(token_lit) + } + token::OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar( + mv_kind @ MetaVarKind::Expr { can_begin_literal_maybe_minus: true, .. }, + ))) => { + let expr = self + .eat_metavar_seq(mv_kind, |this| this.parse_expr()) + .expect("metavar seq expr"); + let ast::ExprKind::Lit(token_lit) = expr.kind else { + panic!("didn't reparse an expr"); + }; + Some(token_lit) + } + _ => None, + } } /// Matches `lit = true | false | token_lit`. /// Returns `None` if the next token is not a literal. - pub(super) fn parse_opt_token_lit(&mut self) -> Option<(token::Lit, Span)> { - let recovered = self.recover_after_dot(); - let token = recovered.as_ref().unwrap_or(&self.token); - let span = token.span; - - token::Lit::from_token(token).map(|token_lit| { - self.bump(); - (token_lit, span) - }) + fn parse_opt_token_lit(&mut self) -> Option<(token::Lit, Span)> { + self.recover_after_dot(); + let span = self.token.span; + self.eat_token_lit().map(|token_lit| (token_lit, span)) } /// Matches `lit = true | false | token_lit`. /// Returns `None` if the next token is not a literal. - pub(super) fn parse_opt_meta_item_lit(&mut self) -> Option<MetaItemLit> { - let recovered = self.recover_after_dot(); - let token = recovered.as_ref().unwrap_or(&self.token); - match token::Lit::from_token(token) { - Some(lit) => { - match MetaItemLit::from_token_lit(lit, token.span) { - Ok(lit) => { - self.bump(); - Some(lit) - } - Err(err) => { - let span = token.uninterpolated_span(); - self.bump(); - let guar = report_lit_error(self.psess, err, lit, span); - // Pack possible quotes and prefixes from the original literal into - // the error literal's symbol so they can be pretty-printed faithfully. - let suffixless_lit = token::Lit::new(lit.kind, lit.symbol, None); - let symbol = Symbol::intern(&suffixless_lit.to_string()); - let lit = token::Lit::new(token::Err(guar), symbol, lit.suffix); - Some( - MetaItemLit::from_token_lit(lit, span) - .unwrap_or_else(|_| unreachable!()), - ) - } + fn parse_opt_meta_item_lit(&mut self) -> Option<MetaItemLit> { + self.recover_after_dot(); + let span = self.token.span; + let uninterpolated_span = self.uninterpolated_token_span(); + self.eat_token_lit().map(|token_lit| { + match MetaItemLit::from_token_lit(token_lit, span) { + Ok(lit) => lit, + Err(err) => { + let guar = report_lit_error(&self.psess, err, token_lit, uninterpolated_span); + // Pack possible quotes and prefixes from the original literal into + // the error literal's symbol so they can be pretty-printed faithfully. + let suffixless_lit = token::Lit::new(token_lit.kind, token_lit.symbol, None); + let symbol = Symbol::intern(&suffixless_lit.to_string()); + let token_lit = token::Lit::new(token::Err(guar), symbol, token_lit.suffix); + MetaItemLit::from_token_lit(token_lit, uninterpolated_span).unwrap() } } - None => None, - } + }) } pub(super) fn expect_no_tuple_index_suffix(&self, span: Span, suffix: Symbol) { @@ -2166,9 +2224,10 @@ impl<'a> Parser<'a> { /// Matches `'-' lit | lit` (cf. `ast_validation::AstValidator::check_expr_within_pat`). /// Keep this in sync with `Token::can_begin_literal_maybe_minus`. pub fn parse_literal_maybe_minus(&mut self) -> PResult<'a, P<Expr>> { - if let token::Interpolated(nt) = &self.token.kind { - match &**nt { - // FIXME(nnethercote) The `NtExpr` case should only match if + if let Some(expr) = self.eat_metavar_seq_with_matcher( + |mv_kind| matches!(mv_kind, MetaVarKind::Expr { .. }), + |this| { + // FIXME(nnethercote) The `expr` case should only match if // `e` is an `ExprKind::Lit` or an `ExprKind::Unary` containing // an `UnOp::Neg` and an `ExprKind::Lit`, like how // `can_begin_literal_maybe_minus` works. But this method has @@ -2178,13 +2237,14 @@ impl<'a> Parser<'a> { // `ExprKind::Path` must be accepted when parsing range // patterns. That requires some care. So for now, we continue // being less strict here than we should be. - token::NtExpr(e) | token::NtLiteral(e) => { - let e = e.clone(); - self.bump(); - return Ok(e); - } - _ => {} - }; + this.parse_expr() + }, + ) { + return Ok(expr); + } else if let Some(lit) = + self.eat_metavar_seq(MetaVarKind::Literal, |this| this.parse_literal_maybe_minus()) + { + return Ok(lit); } let lo = self.token.span; diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index e93fb2473fb..20833a0f70f 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -1290,12 +1290,24 @@ impl<'a> Parser<'a> { } fn is_unsafe_foreign_mod(&self) -> bool { - 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_string_literal() as usize), - |t| *t == token::OpenDelim(Delimiter::Brace), - ) + // Look for `unsafe`. + if !self.token.is_keyword(kw::Unsafe) { + return false; + } + // Look for `extern`. + if !self.is_keyword_ahead(1, &[kw::Extern]) { + return false; + } + + // Look for the optional ABI string literal. + let n = if self.look_ahead(2, |t| t.can_begin_string_literal()) { 3 } else { 2 }; + + // Look for the `{`. Use `tree_look_ahead` because the ABI (if present) + // might be a metavariable i.e. an invisible-delimited sequence, and + // `tree_look_ahead` will consider that a single element when looking + // ahead. + self.tree_look_ahead(n, |t| matches!(t, TokenTree::Delimited(_, _, Delimiter::Brace, _))) + == Some(true) } fn is_static_global(&mut self) -> bool { @@ -2604,13 +2616,36 @@ impl<'a> Parser<'a> { }) // `extern ABI fn` || self.check_keyword_case(exp!(Extern), case) + // Use `tree_look_ahead` because `ABI` might be a metavariable, + // i.e. an invisible-delimited sequence, and `tree_look_ahead` + // will consider that a single element when looking ahead. && self.look_ahead(1, |t| t.can_begin_string_literal()) - && (self.look_ahead(2, |t| t.is_keyword_case(kw::Fn, case)) || + && (self.tree_look_ahead(2, |tt| { + match tt { + TokenTree::Token(t, _) => t.is_keyword_case(kw::Fn, case), + TokenTree::Delimited(..) => false, + } + }) == Some(true) || // This branch is only for better diagnostics; `pub`, `unsafe`, etc. are not // allowed here. (self.may_recover() - && self.look_ahead(2, |t| ALL_QUALS.iter().any(|exp| t.is_keyword(exp.kw))) - && self.look_ahead(3, |t| t.is_keyword_case(kw::Fn, case)))) + && self.tree_look_ahead(2, |tt| { + match tt { + TokenTree::Token(t, _) => + ALL_QUALS.iter().any(|exp| { + t.is_keyword(exp.kw) + }), + TokenTree::Delimited(..) => false, + } + }) == Some(true) + && self.tree_look_ahead(3, |tt| { + match tt { + TokenTree::Token(t, _) => t.is_keyword_case(kw::Fn, case), + TokenTree::Delimited(..) => false, + } + }) == Some(true) + ) + ) } /// Parses all the "front matter" (or "qualifiers") for a `fn` declaration, diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index d865fd42764..a08fbde52a7 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -24,8 +24,8 @@ pub use pat::{CommaRecoveryMode, RecoverColon, RecoverComma}; use path::PathStyle; use rustc_ast::ptr::P; use rustc_ast::token::{ - self, Delimiter, IdentIsRaw, InvisibleOrigin, MetaVarKind, Nonterminal, NtPatKind, Token, - TokenKind, + self, Delimiter, IdentIsRaw, InvisibleOrigin, MetaVarKind, Nonterminal, NtExprKind, NtPatKind, + Token, TokenKind, }; use rustc_ast::tokenstream::{AttrsTarget, Spacing, TokenStream, TokenTree}; use rustc_ast::util::case::Case; @@ -101,6 +101,7 @@ pub enum ForceCollect { #[macro_export] macro_rules! maybe_whole { ($p:expr, $constructor:ident, |$x:ident| $e:expr) => { + #[allow(irrefutable_let_patterns)] // FIXME: temporary if let token::Interpolated(nt) = &$p.token.kind && let token::$constructor(x) = &**nt { @@ -299,6 +300,10 @@ impl TokenTreeCursor { self.stream.get(self.index) } + fn look_ahead(&self, n: usize) -> Option<&TokenTree> { + self.stream.get(self.index + n) + } + #[inline] fn bump(&mut self) { self.index += 1; @@ -1290,6 +1295,17 @@ impl<'a> Parser<'a> { looker(&token) } + /// Like `lookahead`, but skips over token trees rather than tokens. Useful + /// when looking past possible metavariable pasting sites. + pub fn tree_look_ahead<R>( + &self, + dist: usize, + looker: impl FnOnce(&TokenTree) -> R, + ) -> Option<R> { + assert_ne!(dist, 0); + self.token_cursor.curr.look_ahead(dist - 1).map(looker) + } + /// Returns whether any of the given keywords are `dist` tokens ahead of the current one. pub(crate) fn is_keyword_ahead(&self, dist: usize, kws: &[Symbol]) -> bool { self.look_ahead(dist, |t| kws.iter().any(|&kw| t.is_keyword(kw))) @@ -1706,6 +1722,16 @@ impl<'a> Parser<'a> { pub fn approx_token_stream_pos(&self) -> u32 { self.num_bump_calls } + + pub fn uninterpolated_token_span(&self) -> Span { + match &self.token.kind { + token::Interpolated(nt) => nt.use_span(), + token::OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(_))) => { + self.look_ahead(1, |t| t.span) + } + _ => self.token.span, + } + } } pub(crate) fn make_unclosed_delims_error( @@ -1758,6 +1784,8 @@ pub enum ParseNtResult { Item(P<ast::Item>), Stmt(P<ast::Stmt>), Pat(P<ast::Pat>, NtPatKind), + Expr(P<ast::Expr>, NtExprKind), + Literal(P<ast::Expr>), Ty(P<ast::Ty>), Meta(P<ast::AttrItem>), Path(P<ast::Path>), diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs index 1123755ce00..b4e540d670d 100644 --- a/compiler/rustc_parse/src/parser/nonterminal.rs +++ b/compiler/rustc_parse/src/parser/nonterminal.rs @@ -48,10 +48,6 @@ impl<'a> Parser<'a> { /// Old variant of `may_be_ident`. Being phased out. fn nt_may_be_ident(nt: &Nonterminal) -> bool { match nt { - NtExpr(_) - | NtLiteral(_) // `true`, `false` - => true, - NtBlock(_) => false, } } @@ -95,7 +91,7 @@ impl<'a> Parser<'a> { token::OpenDelim(Delimiter::Brace) => true, token::NtLifetime(..) => true, token::Interpolated(nt) => match &**nt { - NtBlock(_) | NtExpr(_) | NtLiteral(_) => true, + NtBlock(_) => true, }, token::OpenDelim(Delimiter::Invisible(InvisibleOrigin::MetaVar(k))) => match k { MetaVarKind::Block @@ -179,10 +175,14 @@ impl<'a> Parser<'a> { pat_kind, )); } - NonterminalKind::Expr(_) => NtExpr(self.parse_expr_force_collect()?), + NonterminalKind::Expr(expr_kind) => { + return Ok(ParseNtResult::Expr(self.parse_expr_force_collect()?, expr_kind)); + } NonterminalKind::Literal => { - // The `:literal` matcher does not support attributes - NtLiteral(self.collect_tokens_no_attrs(|this| this.parse_literal_maybe_minus())?) + // The `:literal` matcher does not support attributes. + return Ok(ParseNtResult::Literal( + self.collect_tokens_no_attrs(|this| this.parse_literal_maybe_minus())?, + )); } NonterminalKind::Ty => { return Ok(ParseNtResult::Ty( diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs index 174cc929fa7..9612f71b2af 100644 --- a/compiler/rustc_parse/src/parser/pat.rs +++ b/compiler/rustc_parse/src/parser/pat.rs @@ -1252,7 +1252,7 @@ impl<'a> Parser<'a> { || *t == token::Dot // e.g. `.5` for recovery; || matches!(t.kind, token::Literal(..) | token::Minus) || t.is_bool_lit() - || t.is_whole_expr() + || t.is_metavar_expr() || t.is_lifetime() // recover `'a` instead of `'a'` || (self.may_recover() // recover leading `(` && *t == token::OpenDelim(Delimiter::Parenthesis) diff --git a/tests/ui/attributes/nonterminal-expansion.rs b/tests/ui/attributes/nonterminal-expansion.rs index 83c8f00999a..004a8a23fd6 100644 --- a/tests/ui/attributes/nonterminal-expansion.rs +++ b/tests/ui/attributes/nonterminal-expansion.rs @@ -5,8 +5,7 @@ macro_rules! pass_nonterminal { ($n:expr) => { #[repr(align($n))] - //~^ ERROR expected unsuffixed literal, found expression `n!()` - //~^^ ERROR incorrect `repr(align)` attribute format: `align` expects a literal integer as argument [E0693] + //~^ ERROR expected unsuffixed literal, found `expr` metavariable struct S; }; } @@ -16,5 +15,6 @@ macro_rules! n { } pass_nonterminal!(n!()); +//~^ ERROR incorrect `repr(align)` attribute format: `align` expects a literal integer as argument [E0693] fn main() {} diff --git a/tests/ui/attributes/nonterminal-expansion.stderr b/tests/ui/attributes/nonterminal-expansion.stderr index 8a85731bd5a..9c6cb98f619 100644 --- a/tests/ui/attributes/nonterminal-expansion.stderr +++ b/tests/ui/attributes/nonterminal-expansion.stderr @@ -1,4 +1,4 @@ -error: expected unsuffixed literal, found expression `n!()` +error: expected unsuffixed literal, found `expr` metavariable --> $DIR/nonterminal-expansion.rs:7:22 | LL | #[repr(align($n))] @@ -10,15 +10,10 @@ LL | pass_nonterminal!(n!()); = note: this error originates in the macro `pass_nonterminal` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0693]: incorrect `repr(align)` attribute format: `align` expects a literal integer as argument - --> $DIR/nonterminal-expansion.rs:7:22 + --> $DIR/nonterminal-expansion.rs:17:19 | -LL | #[repr(align($n))] - | ^^ -... LL | pass_nonterminal!(n!()); - | ----------------------- in this macro invocation - | - = note: this error originates in the macro `pass_nonterminal` (in Nightly builds, run with -Z macro-backtrace for more info) + | ^ error: aborting due to 2 previous errors diff --git a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs index 416145a0c15..47418b4e091 100644 --- a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs +++ b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs @@ -28,7 +28,7 @@ struct S9; macro_rules! generate_s10 { ($expr: expr) => { #[cfg(feature = $expr)] - //~^ ERROR expected unsuffixed literal, found expression `concat!("nonexistent")` + //~^ ERROR expected unsuffixed literal, found `expr` metavariable struct S10; } } diff --git a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr index d02d0d70a8b..66ce2ee9858 100644 --- a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr +++ b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr @@ -54,7 +54,7 @@ LL | #[cfg(a = b"hi")] | | | help: consider removing the prefix -error: expected unsuffixed literal, found expression `concat!("nonexistent")` +error: expected unsuffixed literal, found `expr` metavariable --> $DIR/cfg-attr-syntax-validation.rs:30:25 | LL | #[cfg(feature = $expr)] diff --git a/tests/ui/macros/nonterminal-matching.rs b/tests/ui/macros/nonterminal-matching.rs index b0a7f3e4650..a03ede20c54 100644 --- a/tests/ui/macros/nonterminal-matching.rs +++ b/tests/ui/macros/nonterminal-matching.rs @@ -29,8 +29,8 @@ macro_rules! foo { (ident $x:ident) => { bar!(ident $x); }; (lifetime $x:lifetime) => { bar!(lifetime $x); }; (tt $x:tt) => { bar!(tt $x); }; - (expr $x:expr) => { bar!(expr $x); }; //~ ERROR: no rules expected expression `3` - (literal $x:literal) => { bar!(literal $x); }; //~ ERROR: no rules expected literal `4` + (expr $x:expr) => { bar!(expr $x); }; //~ ERROR: no rules expected `expr` metavariable + (literal $x:literal) => { bar!(literal $x); }; //~ ERROR: no rules expected `literal` metavariable (path $x:path) => { bar!(path $x); }; //~ ERROR: no rules expected `path` metavariable (stmt $x:stmt) => { bar!(stmt $x); }; //~ ERROR: no rules expected `stmt` metavariable } diff --git a/tests/ui/macros/nonterminal-matching.stderr b/tests/ui/macros/nonterminal-matching.stderr index 2d9252fbfc1..d0156141566 100644 --- a/tests/ui/macros/nonterminal-matching.stderr +++ b/tests/ui/macros/nonterminal-matching.stderr @@ -23,7 +23,7 @@ LL | complex_nonterminal!(enum E {}); = help: try using `:tt` instead in the macro definition = note: this error originates in the macro `complex_nonterminal` (in Nightly builds, run with -Z macro-backtrace for more info) -error: no rules expected expression `3` +error: no rules expected `expr` metavariable --> $DIR/nonterminal-matching.rs:32:35 | LL | (expr $x:expr) => { bar!(expr $x); }; @@ -45,7 +45,7 @@ LL | (expr 3) => {}; = help: try using `:tt` instead in the macro definition = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) -error: no rules expected literal `4` +error: no rules expected `literal` metavariable --> $DIR/nonterminal-matching.rs:33:44 | LL | (literal $x:literal) => { bar!(literal $x); }; diff --git a/tests/ui/parser/extern-abi-from-mac-literal-frag.rs b/tests/ui/parser/extern-abi-from-mac-literal-frag.rs index a4e9134218c..12b6c98705c 100644 --- a/tests/ui/parser/extern-abi-from-mac-literal-frag.rs +++ b/tests/ui/parser/extern-abi-from-mac-literal-frag.rs @@ -12,6 +12,8 @@ macro_rules! abi_from_lit_frag { fn _import(); } + unsafe extern $abi {} + extern $abi fn _export() {} type _PTR = extern $abi fn(); @@ -24,6 +26,8 @@ macro_rules! abi_from_expr_frag { fn _import(); } + unsafe extern $abi {} + extern $abi fn _export() {} type _PTR = extern $abi fn(); diff --git a/tests/ui/parser/float-field-interpolated.rs b/tests/ui/parser/float-field-interpolated.rs index 990f2926dc8..bf7163039c4 100644 --- a/tests/ui/parser/float-field-interpolated.rs +++ b/tests/ui/parser/float-field-interpolated.rs @@ -5,10 +5,10 @@ macro_rules! generate_field_accesses { let s = S(0, (0, 0)); s.$a; // OK - { s.$b; } //~ ERROR unexpected token: `1.1` - //~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found literal `1.1` - { s.$c; } //~ ERROR unexpected token: `1.1` - //~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found expression `1.1` + { s.$b; } //~ ERROR unexpected token: `literal` metavariable + //~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `literal` metavariable + { s.$c; } //~ ERROR unexpected token: `expr` metavariable + //~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `expr` metavariable }; } diff --git a/tests/ui/parser/float-field-interpolated.stderr b/tests/ui/parser/float-field-interpolated.stderr index 2a1a4926cb3..e2b7e3a7dbe 100644 --- a/tests/ui/parser/float-field-interpolated.stderr +++ b/tests/ui/parser/float-field-interpolated.stderr @@ -1,4 +1,4 @@ -error: unexpected token: `1.1` +error: unexpected token: `literal` metavariable --> $DIR/float-field-interpolated.rs:8:13 | LL | { s.$b; } @@ -9,7 +9,7 @@ LL | generate_field_accesses!(1.1, 1.1, 1.1); | = note: this error originates in the macro `generate_field_accesses` (in Nightly builds, run with -Z macro-backtrace for more info) -error: expected one of `.`, `;`, `?`, `}`, or an operator, found literal `1.1` +error: expected one of `.`, `;`, `?`, `}`, or an operator, found `literal` metavariable --> $DIR/float-field-interpolated.rs:8:13 | LL | { s.$b; } @@ -20,7 +20,7 @@ LL | generate_field_accesses!(1.1, 1.1, 1.1); | = note: this error originates in the macro `generate_field_accesses` (in Nightly builds, run with -Z macro-backtrace for more info) -error: unexpected token: `1.1` +error: unexpected token: `expr` metavariable --> $DIR/float-field-interpolated.rs:10:13 | LL | { s.$c; } @@ -31,7 +31,7 @@ LL | generate_field_accesses!(1.1, 1.1, 1.1); | = note: this error originates in the macro `generate_field_accesses` (in Nightly builds, run with -Z macro-backtrace for more info) -error: expected one of `.`, `;`, `?`, `}`, or an operator, found expression `1.1` +error: expected one of `.`, `;`, `?`, `}`, or an operator, found `expr` metavariable --> $DIR/float-field-interpolated.rs:10:13 | LL | { s.$c; } diff --git a/tests/ui/parser/macro/trait-non-item-macros.rs b/tests/ui/parser/macro/trait-non-item-macros.rs index e93000193b6..b4140613cba 100644 --- a/tests/ui/parser/macro/trait-non-item-macros.rs +++ b/tests/ui/parser/macro/trait-non-item-macros.rs @@ -1,7 +1,7 @@ macro_rules! bah { ($a:expr) => { $a - }; //~^ ERROR macro expansion ignores expression `2` and any tokens following + }; //~^ ERROR macro expansion ignores `expr` metavariable and any tokens following } trait Bar { diff --git a/tests/ui/parser/macro/trait-non-item-macros.stderr b/tests/ui/parser/macro/trait-non-item-macros.stderr index 1a828483778..62b42fa8b8d 100644 --- a/tests/ui/parser/macro/trait-non-item-macros.stderr +++ b/tests/ui/parser/macro/trait-non-item-macros.stderr @@ -1,4 +1,4 @@ -error: macro expansion ignores expression `2` and any tokens following +error: macro expansion ignores `expr` metavariable and any tokens following --> $DIR/trait-non-item-macros.rs:3:9 | LL | $a diff --git a/tests/ui/proc-macro/macro-rules-derive-cfg.stdout b/tests/ui/proc-macro/macro-rules-derive-cfg.stdout index c1e46b50d40..9482b2784d2 100644 --- a/tests/ui/proc-macro/macro-rules-derive-cfg.stdout +++ b/tests/ui/proc-macro/macro-rules-derive-cfg.stdout @@ -1,8 +1,9 @@ PRINT-DERIVE INPUT (DISPLAY): struct -Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)] -{ #![rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]); +Foo([bool; #[rustc_dummy(first)] +#[rustc_dummy(second)] { #![rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]); PRINT-DERIVE DEEP-RE-COLLECTED (DISPLAY): struct -Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)] +Foo([bool; #[rustc_dummy(first)] +#[rustc_dummy(second)] { #! [rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]); PRINT-DERIVE INPUT (DEBUG): TokenStream [ Ident { @@ -53,97 +54,103 @@ PRINT-DERIVE INPUT (DEBUG): TokenStream [ ], span: $DIR/macro-rules-derive-cfg.rs:18:21: 18:63 (#3), }, - Punct { - ch: '#', - spacing: Alone, - span: $DIR/macro-rules-derive-cfg.rs:23:13: 23:14 (#0), - }, Group { - delimiter: Bracket, - stream: TokenStream [ - Ident { - ident: "rustc_dummy", - span: $DIR/macro-rules-derive-cfg.rs:23:36: 23:47 (#0), - }, - Group { - delimiter: Parenthesis, - stream: TokenStream [ - Ident { - ident: "second", - span: $DIR/macro-rules-derive-cfg.rs:23:48: 23:54 (#0), - }, - ], - span: $DIR/macro-rules-derive-cfg.rs:23:47: 23:55 (#0), - }, - ], - span: $DIR/macro-rules-derive-cfg.rs:23:14: 23:57 (#0), - }, - Group { - delimiter: Brace, + delimiter: None, stream: TokenStream [ Punct { ch: '#', - spacing: Joint, - span: $DIR/macro-rules-derive-cfg.rs:24:5: 24:6 (#0), - }, - Punct { - ch: '!', spacing: Alone, - span: $DIR/macro-rules-derive-cfg.rs:24:6: 24:7 (#0), + span: $DIR/macro-rules-derive-cfg.rs:23:13: 23:14 (#0), }, Group { delimiter: Bracket, stream: TokenStream [ Ident { ident: "rustc_dummy", - span: $DIR/macro-rules-derive-cfg.rs:24:29: 24:40 (#0), + span: $DIR/macro-rules-derive-cfg.rs:23:36: 23:47 (#0), }, Group { delimiter: Parenthesis, stream: TokenStream [ Ident { - ident: "third", - span: $DIR/macro-rules-derive-cfg.rs:24:41: 24:46 (#0), + ident: "second", + span: $DIR/macro-rules-derive-cfg.rs:23:48: 23:54 (#0), }, ], - span: $DIR/macro-rules-derive-cfg.rs:24:40: 24:47 (#0), + span: $DIR/macro-rules-derive-cfg.rs:23:47: 23:55 (#0), }, ], - span: $DIR/macro-rules-derive-cfg.rs:24:7: 24:49 (#0), - }, - Punct { - ch: '#', - spacing: Alone, - span: $DIR/macro-rules-derive-cfg.rs:25:5: 25:6 (#0), + span: $DIR/macro-rules-derive-cfg.rs:23:14: 23:57 (#0), }, Group { - delimiter: Bracket, + delimiter: Brace, stream: TokenStream [ - Ident { - ident: "rustc_dummy", - span: $DIR/macro-rules-derive-cfg.rs:25:28: 25:39 (#0), + Punct { + ch: '#', + spacing: Joint, + span: $DIR/macro-rules-derive-cfg.rs:24:5: 24:6 (#0), + }, + Punct { + ch: '!', + spacing: Alone, + span: $DIR/macro-rules-derive-cfg.rs:24:6: 24:7 (#0), }, Group { - delimiter: Parenthesis, + delimiter: Bracket, + stream: TokenStream [ + Ident { + ident: "rustc_dummy", + span: $DIR/macro-rules-derive-cfg.rs:24:29: 24:40 (#0), + }, + Group { + delimiter: Parenthesis, + stream: TokenStream [ + Ident { + ident: "third", + span: $DIR/macro-rules-derive-cfg.rs:24:41: 24:46 (#0), + }, + ], + span: $DIR/macro-rules-derive-cfg.rs:24:40: 24:47 (#0), + }, + ], + span: $DIR/macro-rules-derive-cfg.rs:24:7: 24:49 (#0), + }, + Punct { + ch: '#', + spacing: Alone, + span: $DIR/macro-rules-derive-cfg.rs:25:5: 25:6 (#0), + }, + Group { + delimiter: Bracket, stream: TokenStream [ Ident { - ident: "fourth", - span: $DIR/macro-rules-derive-cfg.rs:25:40: 25:46 (#0), + ident: "rustc_dummy", + span: $DIR/macro-rules-derive-cfg.rs:25:28: 25:39 (#0), + }, + Group { + delimiter: Parenthesis, + stream: TokenStream [ + Ident { + ident: "fourth", + span: $DIR/macro-rules-derive-cfg.rs:25:40: 25:46 (#0), + }, + ], + span: $DIR/macro-rules-derive-cfg.rs:25:39: 25:47 (#0), }, ], - span: $DIR/macro-rules-derive-cfg.rs:25:39: 25:47 (#0), + span: $DIR/macro-rules-derive-cfg.rs:25:6: 25:49 (#0), + }, + Literal { + kind: Integer, + symbol: "30", + suffix: None, + span: $DIR/macro-rules-derive-cfg.rs:26:5: 26:7 (#0), }, ], - span: $DIR/macro-rules-derive-cfg.rs:25:6: 25:49 (#0), - }, - Literal { - kind: Integer, - symbol: "30", - suffix: None, - span: $DIR/macro-rules-derive-cfg.rs:26:5: 26:7 (#0), + span: $DIR/macro-rules-derive-cfg.rs:23:58: 27:2 (#0), }, ], - span: $DIR/macro-rules-derive-cfg.rs:23:58: 27:2 (#0), + span: $DIR/macro-rules-derive-cfg.rs:18:64: 18:69 (#3), }, ], span: $DIR/macro-rules-derive-cfg.rs:18:13: 18:70 (#3), diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs index 4b2fc4a03b6..110c03d0e54 100644 --- a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs @@ -59,8 +59,10 @@ fn _macros() { } use_expr!((let 0 = 1 && 0 == 0)); //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement use_expr!((let 0 = 1)); //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement match () { #[cfg(FALSE)] () if let 0 = 1 => {} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr index 1c710b04897..0997f0c81a0 100644 --- a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr @@ -124,15 +124,33 @@ LL | use_expr!((let 0 = 1 && 0 == 0)); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:62:16 + --> $DIR/feature-gate.rs:60:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:63:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:63:16 | LL | use_expr!((let 0 = 1)); | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: no rules expected keyword `let` - --> $DIR/feature-gate.rs:70:15 + --> $DIR/feature-gate.rs:72:15 | LL | macro_rules! use_expr { | --------------------- when calling this macro @@ -202,7 +220,7 @@ LL | () if let Range { start: _, end: _ } = (true..true) && false => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:66:12 + --> $DIR/feature-gate.rs:68:12 | LL | () if let 0 = 1 => {} | ^^^^^^^^^^^^ @@ -262,6 +280,6 @@ LL | () if let Range { start: _, end: _ } = (true..true) && false => {} = help: add `#![feature(let_chains)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: aborting due to 23 previous errors +error: aborting due to 25 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.feature.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.feature.stderr index db32b8c1de4..817e226bc45 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.feature.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.feature.stderr @@ -233,7 +233,7 @@ LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:99:9 + --> $DIR/disallowed-positions.rs:103:9 | LL | if &let 0 = 0 {} | ^^^^^^^^^ @@ -241,7 +241,7 @@ LL | if &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:102:9 + --> $DIR/disallowed-positions.rs:106:9 | LL | if !let 0 = 0 {} | ^^^^^^^^^ @@ -249,7 +249,7 @@ LL | if !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:104:9 + --> $DIR/disallowed-positions.rs:108:9 | LL | if *let 0 = 0 {} | ^^^^^^^^^ @@ -257,7 +257,7 @@ LL | if *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:106:9 + --> $DIR/disallowed-positions.rs:110:9 | LL | if -let 0 = 0 {} | ^^^^^^^^^ @@ -265,7 +265,7 @@ LL | if -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:114:9 + --> $DIR/disallowed-positions.rs:118:9 | LL | if (let 0 = 0)? {} | ^^^^^^^^^ @@ -273,20 +273,20 @@ LL | if (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:117:16 + --> $DIR/disallowed-positions.rs:121:16 | LL | if true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:117:13 + --> $DIR/disallowed-positions.rs:121:13 | LL | if true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:119:17 + --> $DIR/disallowed-positions.rs:123:17 | LL | if (true || let 0 = 0) {} | ^^^^^^^^^ @@ -294,7 +294,7 @@ LL | if (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:121:25 + --> $DIR/disallowed-positions.rs:125:25 | LL | if true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -302,7 +302,7 @@ LL | if true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:123:25 + --> $DIR/disallowed-positions.rs:127:25 | LL | if true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -310,7 +310,7 @@ LL | if true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:127:12 + --> $DIR/disallowed-positions.rs:131:12 | LL | if x = let 0 = 0 {} | ^^^ @@ -318,7 +318,7 @@ LL | if x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:130:15 + --> $DIR/disallowed-positions.rs:134:15 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^ @@ -326,7 +326,7 @@ LL | if true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:133:11 + --> $DIR/disallowed-positions.rs:137:11 | LL | if ..(let 0 = 0) {} | ^^^^^^^^^ @@ -334,7 +334,7 @@ LL | if ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:135:9 + --> $DIR/disallowed-positions.rs:139:9 | LL | if (let 0 = 0).. {} | ^^^^^^^^^ @@ -342,7 +342,7 @@ LL | if (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:139:8 + --> $DIR/disallowed-positions.rs:143:8 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -350,7 +350,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:142:8 + --> $DIR/disallowed-positions.rs:146:8 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -358,7 +358,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:148:8 + --> $DIR/disallowed-positions.rs:152:8 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -366,7 +366,7 @@ LL | if let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:154:8 + --> $DIR/disallowed-positions.rs:158:8 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -374,7 +374,7 @@ LL | if let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:158:19 + --> $DIR/disallowed-positions.rs:162:19 | LL | if let true = let true = true {} | ^^^ @@ -382,7 +382,7 @@ LL | if let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:161:15 + --> $DIR/disallowed-positions.rs:165:15 | LL | if return let 0 = 0 {} | ^^^ @@ -390,7 +390,7 @@ LL | if return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:164:21 + --> $DIR/disallowed-positions.rs:168:21 | LL | loop { if break let 0 = 0 {} } | ^^^ @@ -398,7 +398,7 @@ LL | loop { if break let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:167:15 + --> $DIR/disallowed-positions.rs:171:15 | LL | if (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -406,7 +406,7 @@ LL | if (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:170:9 + --> $DIR/disallowed-positions.rs:174:9 | LL | if (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -414,7 +414,7 @@ LL | if (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:173:9 + --> $DIR/disallowed-positions.rs:177:9 | LL | if (let 0 = 0,) {} | ^^^^^^^^^ @@ -422,7 +422,7 @@ LL | if (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:177:13 + --> $DIR/disallowed-positions.rs:181:13 | LL | if (let 0 = 0).await {} | ^^^^^^^^^ @@ -430,7 +430,7 @@ LL | if (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:181:12 + --> $DIR/disallowed-positions.rs:185:12 | LL | if (|| let 0 = 0) {} | ^^^ @@ -438,7 +438,7 @@ LL | if (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:184:9 + --> $DIR/disallowed-positions.rs:188:9 | LL | if (let 0 = 0)() {} | ^^^^^^^^^ @@ -446,7 +446,7 @@ LL | if (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:190:12 + --> $DIR/disallowed-positions.rs:194:12 | LL | while &let 0 = 0 {} | ^^^^^^^^^ @@ -454,7 +454,7 @@ LL | while &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:193:12 + --> $DIR/disallowed-positions.rs:197:12 | LL | while !let 0 = 0 {} | ^^^^^^^^^ @@ -462,7 +462,7 @@ LL | while !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:195:12 + --> $DIR/disallowed-positions.rs:199:12 | LL | while *let 0 = 0 {} | ^^^^^^^^^ @@ -470,7 +470,7 @@ LL | while *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:197:12 + --> $DIR/disallowed-positions.rs:201:12 | LL | while -let 0 = 0 {} | ^^^^^^^^^ @@ -478,7 +478,7 @@ LL | while -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:205:12 + --> $DIR/disallowed-positions.rs:209:12 | LL | while (let 0 = 0)? {} | ^^^^^^^^^ @@ -486,20 +486,20 @@ LL | while (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:208:19 + --> $DIR/disallowed-positions.rs:212:19 | LL | while true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:208:16 + --> $DIR/disallowed-positions.rs:212:16 | LL | while true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:210:20 + --> $DIR/disallowed-positions.rs:214:20 | LL | while (true || let 0 = 0) {} | ^^^^^^^^^ @@ -507,7 +507,7 @@ LL | while (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:212:28 + --> $DIR/disallowed-positions.rs:216:28 | LL | while true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -515,7 +515,7 @@ LL | while true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:214:28 + --> $DIR/disallowed-positions.rs:218:28 | LL | while true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -523,7 +523,7 @@ LL | while true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:218:15 + --> $DIR/disallowed-positions.rs:222:15 | LL | while x = let 0 = 0 {} | ^^^ @@ -531,7 +531,7 @@ LL | while x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:221:18 + --> $DIR/disallowed-positions.rs:225:18 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^ @@ -539,7 +539,7 @@ LL | while true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:224:14 + --> $DIR/disallowed-positions.rs:228:14 | LL | while ..(let 0 = 0) {} | ^^^^^^^^^ @@ -547,7 +547,7 @@ LL | while ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:226:12 + --> $DIR/disallowed-positions.rs:230:12 | LL | while (let 0 = 0).. {} | ^^^^^^^^^ @@ -555,7 +555,7 @@ LL | while (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:230:11 + --> $DIR/disallowed-positions.rs:234:11 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -563,7 +563,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:233:11 + --> $DIR/disallowed-positions.rs:237:11 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -571,7 +571,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:239:11 + --> $DIR/disallowed-positions.rs:243:11 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -579,7 +579,7 @@ LL | while let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:245:11 + --> $DIR/disallowed-positions.rs:249:11 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -587,7 +587,7 @@ LL | while let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:249:22 + --> $DIR/disallowed-positions.rs:253:22 | LL | while let true = let true = true {} | ^^^ @@ -595,7 +595,7 @@ LL | while let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:252:18 + --> $DIR/disallowed-positions.rs:256:18 | LL | while return let 0 = 0 {} | ^^^ @@ -603,7 +603,7 @@ LL | while return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:255:39 + --> $DIR/disallowed-positions.rs:259:39 | LL | 'outer: loop { while break 'outer let 0 = 0 {} } | ^^^ @@ -611,7 +611,7 @@ LL | 'outer: loop { while break 'outer let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:258:18 + --> $DIR/disallowed-positions.rs:262:18 | LL | while (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -619,7 +619,7 @@ LL | while (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:261:12 + --> $DIR/disallowed-positions.rs:265:12 | LL | while (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -627,7 +627,7 @@ LL | while (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:264:12 + --> $DIR/disallowed-positions.rs:268:12 | LL | while (let 0 = 0,) {} | ^^^^^^^^^ @@ -635,7 +635,7 @@ LL | while (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:268:16 + --> $DIR/disallowed-positions.rs:272:16 | LL | while (let 0 = 0).await {} | ^^^^^^^^^ @@ -643,7 +643,7 @@ LL | while (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:272:15 + --> $DIR/disallowed-positions.rs:276:15 | LL | while (|| let 0 = 0) {} | ^^^ @@ -651,7 +651,7 @@ LL | while (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:275:12 + --> $DIR/disallowed-positions.rs:279:12 | LL | while (let 0 = 0)() {} | ^^^^^^^^^ @@ -659,7 +659,7 @@ LL | while (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:292:6 + --> $DIR/disallowed-positions.rs:296:6 | LL | &let 0 = 0; | ^^^ @@ -667,7 +667,7 @@ LL | &let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:295:6 + --> $DIR/disallowed-positions.rs:299:6 | LL | !let 0 = 0; | ^^^ @@ -675,7 +675,7 @@ LL | !let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:297:6 + --> $DIR/disallowed-positions.rs:301:6 | LL | *let 0 = 0; | ^^^ @@ -683,7 +683,7 @@ LL | *let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:299:6 + --> $DIR/disallowed-positions.rs:303:6 | LL | -let 0 = 0; | ^^^ @@ -691,7 +691,7 @@ LL | -let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:301:13 + --> $DIR/disallowed-positions.rs:305:13 | LL | let _ = let _ = 3; | ^^^ @@ -699,7 +699,7 @@ LL | let _ = let _ = 3; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:309:6 + --> $DIR/disallowed-positions.rs:313:6 | LL | (let 0 = 0)?; | ^^^ @@ -707,7 +707,7 @@ LL | (let 0 = 0)?; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:312:13 + --> $DIR/disallowed-positions.rs:316:13 | LL | true || let 0 = 0; | ^^^ @@ -715,7 +715,7 @@ LL | true || let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:314:14 + --> $DIR/disallowed-positions.rs:318:14 | LL | (true || let 0 = 0); | ^^^ @@ -723,7 +723,7 @@ LL | (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:316:22 + --> $DIR/disallowed-positions.rs:320:22 | LL | true && (true || let 0 = 0); | ^^^ @@ -731,7 +731,7 @@ LL | true && (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:320:9 + --> $DIR/disallowed-positions.rs:324:9 | LL | x = let 0 = 0; | ^^^ @@ -739,7 +739,7 @@ LL | x = let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:323:12 + --> $DIR/disallowed-positions.rs:327:12 | LL | true..(let 0 = 0); | ^^^ @@ -747,7 +747,7 @@ LL | true..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:325:8 + --> $DIR/disallowed-positions.rs:329:8 | LL | ..(let 0 = 0); | ^^^ @@ -755,7 +755,7 @@ LL | ..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:327:6 + --> $DIR/disallowed-positions.rs:331:6 | LL | (let 0 = 0)..; | ^^^ @@ -763,7 +763,7 @@ LL | (let 0 = 0)..; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:330:6 + --> $DIR/disallowed-positions.rs:334:6 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^ @@ -771,7 +771,7 @@ LL | (let Range { start: _, end: _ } = true..true || false); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:6 + --> $DIR/disallowed-positions.rs:338:6 | LL | (let true = let true = true); | ^^^ @@ -779,7 +779,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:17 + --> $DIR/disallowed-positions.rs:338:17 | LL | (let true = let true = true); | ^^^ @@ -787,7 +787,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:340:25 + --> $DIR/disallowed-positions.rs:344:25 | LL | let x = true && let y = 1; | ^^^ @@ -795,7 +795,7 @@ LL | let x = true && let y = 1; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:346:19 + --> $DIR/disallowed-positions.rs:350:19 | LL | [1, 2, 3][let _ = ()] | ^^^ @@ -803,7 +803,7 @@ LL | [1, 2, 3][let _ = ()] = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:351:6 + --> $DIR/disallowed-positions.rs:355:6 | LL | &let 0 = 0 | ^^^ @@ -811,7 +811,7 @@ LL | &let 0 = 0 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:362:17 + --> $DIR/disallowed-positions.rs:366:17 | LL | true && let 1 = 1 | ^^^ @@ -819,7 +819,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:367:17 + --> $DIR/disallowed-positions.rs:371:17 | LL | true && let 1 = 1 | ^^^ @@ -827,7 +827,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:372:17 + --> $DIR/disallowed-positions.rs:376:17 | LL | true && let 1 = 1 | ^^^ @@ -835,7 +835,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:383:17 + --> $DIR/disallowed-positions.rs:387:17 | LL | true && let 1 = 1 | ^^^ @@ -843,7 +843,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expressions must be enclosed in braces to be used as const generic arguments - --> $DIR/disallowed-positions.rs:383:9 + --> $DIR/disallowed-positions.rs:387:9 | LL | true && let 1 = 1 | ^^^^^^^^^^^^^^^^^ @@ -854,124 +854,124 @@ LL | { true && let 1 = 1 } | + + error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:436:22 + --> $DIR/disallowed-positions.rs:440:22 | LL | let x = (true && let y = 1); | ^^^ @@ -979,7 +979,7 @@ LL | let x = (true && let y = 1); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:441:20 + --> $DIR/disallowed-positions.rs:445:20 | LL | ([1, 2, 3][let _ = ()]) | ^^^ @@ -995,15 +995,51 @@ LL | use_expr!((let 0 = 1 && 0 == 0)); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:93:16 + --> $DIR/disallowed-positions.rs:91:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:91:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 | LL | use_expr!((let 0 = 1)); | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:130:8 + --> $DIR/disallowed-positions.rs:134:8 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1012,7 +1048,7 @@ LL | if true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:139:12 + --> $DIR/disallowed-positions.rs:143:12 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1023,7 +1059,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:142:12 + --> $DIR/disallowed-positions.rs:146:12 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1034,7 +1070,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:148:12 + --> $DIR/disallowed-positions.rs:152:12 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1045,7 +1081,7 @@ LL | if let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:154:12 + --> $DIR/disallowed-positions.rs:158:12 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1056,7 +1092,7 @@ LL | if let Range { start: true, end } = t..&&false {} found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:110:20 + --> $DIR/disallowed-positions.rs:114:20 | LL | if let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` @@ -1064,7 +1100,7 @@ LL | if let 0 = 0? {} = help: the trait `Try` is not implemented for `{integer}` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:221:11 + --> $DIR/disallowed-positions.rs:225:11 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1073,7 +1109,7 @@ LL | while true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:230:15 + --> $DIR/disallowed-positions.rs:234:15 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1084,7 +1120,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:233:15 + --> $DIR/disallowed-positions.rs:237:15 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1095,7 +1131,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:239:15 + --> $DIR/disallowed-positions.rs:243:15 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1106,7 +1142,7 @@ LL | while let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:245:15 + --> $DIR/disallowed-positions.rs:249:15 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1117,7 +1153,7 @@ LL | while let Range { start: true, end } = t..&&false {} found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:201:23 + --> $DIR/disallowed-positions.rs:205:23 | LL | while let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` @@ -1125,7 +1161,7 @@ LL | while let 0 = 0? {} = help: the trait `Try` is not implemented for `{integer}` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:330:10 + --> $DIR/disallowed-positions.rs:334:10 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1136,14 +1172,14 @@ LL | (let Range { start: _, end: _ } = true..true || false); found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:305:17 + --> $DIR/disallowed-positions.rs:309:17 | LL | let 0 = 0?; | ^^ the `?` operator cannot be applied to type `{integer}` | = help: the trait `Try` is not implemented for `{integer}` -error: aborting due to 121 previous errors +error: aborting due to 125 previous errors Some errors have detailed explanations: E0277, E0308. For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.no_feature.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.no_feature.stderr index ad16a0f8ed8..bab50c22c03 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.no_feature.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.no_feature.stderr @@ -233,7 +233,7 @@ LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:99:9 + --> $DIR/disallowed-positions.rs:103:9 | LL | if &let 0 = 0 {} | ^^^^^^^^^ @@ -241,7 +241,7 @@ LL | if &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:102:9 + --> $DIR/disallowed-positions.rs:106:9 | LL | if !let 0 = 0 {} | ^^^^^^^^^ @@ -249,7 +249,7 @@ LL | if !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:104:9 + --> $DIR/disallowed-positions.rs:108:9 | LL | if *let 0 = 0 {} | ^^^^^^^^^ @@ -257,7 +257,7 @@ LL | if *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:106:9 + --> $DIR/disallowed-positions.rs:110:9 | LL | if -let 0 = 0 {} | ^^^^^^^^^ @@ -265,7 +265,7 @@ LL | if -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:114:9 + --> $DIR/disallowed-positions.rs:118:9 | LL | if (let 0 = 0)? {} | ^^^^^^^^^ @@ -273,20 +273,20 @@ LL | if (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:117:16 + --> $DIR/disallowed-positions.rs:121:16 | LL | if true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:117:13 + --> $DIR/disallowed-positions.rs:121:13 | LL | if true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:119:17 + --> $DIR/disallowed-positions.rs:123:17 | LL | if (true || let 0 = 0) {} | ^^^^^^^^^ @@ -294,7 +294,7 @@ LL | if (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:121:25 + --> $DIR/disallowed-positions.rs:125:25 | LL | if true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -302,7 +302,7 @@ LL | if true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:123:25 + --> $DIR/disallowed-positions.rs:127:25 | LL | if true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -310,7 +310,7 @@ LL | if true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:127:12 + --> $DIR/disallowed-positions.rs:131:12 | LL | if x = let 0 = 0 {} | ^^^ @@ -318,7 +318,7 @@ LL | if x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:130:15 + --> $DIR/disallowed-positions.rs:134:15 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^ @@ -326,7 +326,7 @@ LL | if true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:133:11 + --> $DIR/disallowed-positions.rs:137:11 | LL | if ..(let 0 = 0) {} | ^^^^^^^^^ @@ -334,7 +334,7 @@ LL | if ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:135:9 + --> $DIR/disallowed-positions.rs:139:9 | LL | if (let 0 = 0).. {} | ^^^^^^^^^ @@ -342,7 +342,7 @@ LL | if (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:139:8 + --> $DIR/disallowed-positions.rs:143:8 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -350,7 +350,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:142:8 + --> $DIR/disallowed-positions.rs:146:8 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -358,7 +358,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:148:8 + --> $DIR/disallowed-positions.rs:152:8 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -366,7 +366,7 @@ LL | if let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:154:8 + --> $DIR/disallowed-positions.rs:158:8 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -374,7 +374,7 @@ LL | if let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:158:19 + --> $DIR/disallowed-positions.rs:162:19 | LL | if let true = let true = true {} | ^^^ @@ -382,7 +382,7 @@ LL | if let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:161:15 + --> $DIR/disallowed-positions.rs:165:15 | LL | if return let 0 = 0 {} | ^^^ @@ -390,7 +390,7 @@ LL | if return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:164:21 + --> $DIR/disallowed-positions.rs:168:21 | LL | loop { if break let 0 = 0 {} } | ^^^ @@ -398,7 +398,7 @@ LL | loop { if break let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:167:15 + --> $DIR/disallowed-positions.rs:171:15 | LL | if (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -406,7 +406,7 @@ LL | if (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:170:9 + --> $DIR/disallowed-positions.rs:174:9 | LL | if (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -414,7 +414,7 @@ LL | if (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:173:9 + --> $DIR/disallowed-positions.rs:177:9 | LL | if (let 0 = 0,) {} | ^^^^^^^^^ @@ -422,7 +422,7 @@ LL | if (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:177:13 + --> $DIR/disallowed-positions.rs:181:13 | LL | if (let 0 = 0).await {} | ^^^^^^^^^ @@ -430,7 +430,7 @@ LL | if (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:181:12 + --> $DIR/disallowed-positions.rs:185:12 | LL | if (|| let 0 = 0) {} | ^^^ @@ -438,7 +438,7 @@ LL | if (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:184:9 + --> $DIR/disallowed-positions.rs:188:9 | LL | if (let 0 = 0)() {} | ^^^^^^^^^ @@ -446,7 +446,7 @@ LL | if (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:190:12 + --> $DIR/disallowed-positions.rs:194:12 | LL | while &let 0 = 0 {} | ^^^^^^^^^ @@ -454,7 +454,7 @@ LL | while &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:193:12 + --> $DIR/disallowed-positions.rs:197:12 | LL | while !let 0 = 0 {} | ^^^^^^^^^ @@ -462,7 +462,7 @@ LL | while !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:195:12 + --> $DIR/disallowed-positions.rs:199:12 | LL | while *let 0 = 0 {} | ^^^^^^^^^ @@ -470,7 +470,7 @@ LL | while *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:197:12 + --> $DIR/disallowed-positions.rs:201:12 | LL | while -let 0 = 0 {} | ^^^^^^^^^ @@ -478,7 +478,7 @@ LL | while -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:205:12 + --> $DIR/disallowed-positions.rs:209:12 | LL | while (let 0 = 0)? {} | ^^^^^^^^^ @@ -486,20 +486,20 @@ LL | while (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:208:19 + --> $DIR/disallowed-positions.rs:212:19 | LL | while true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:208:16 + --> $DIR/disallowed-positions.rs:212:16 | LL | while true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:210:20 + --> $DIR/disallowed-positions.rs:214:20 | LL | while (true || let 0 = 0) {} | ^^^^^^^^^ @@ -507,7 +507,7 @@ LL | while (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:212:28 + --> $DIR/disallowed-positions.rs:216:28 | LL | while true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -515,7 +515,7 @@ LL | while true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:214:28 + --> $DIR/disallowed-positions.rs:218:28 | LL | while true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -523,7 +523,7 @@ LL | while true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:218:15 + --> $DIR/disallowed-positions.rs:222:15 | LL | while x = let 0 = 0 {} | ^^^ @@ -531,7 +531,7 @@ LL | while x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:221:18 + --> $DIR/disallowed-positions.rs:225:18 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^ @@ -539,7 +539,7 @@ LL | while true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:224:14 + --> $DIR/disallowed-positions.rs:228:14 | LL | while ..(let 0 = 0) {} | ^^^^^^^^^ @@ -547,7 +547,7 @@ LL | while ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:226:12 + --> $DIR/disallowed-positions.rs:230:12 | LL | while (let 0 = 0).. {} | ^^^^^^^^^ @@ -555,7 +555,7 @@ LL | while (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:230:11 + --> $DIR/disallowed-positions.rs:234:11 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -563,7 +563,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:233:11 + --> $DIR/disallowed-positions.rs:237:11 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -571,7 +571,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:239:11 + --> $DIR/disallowed-positions.rs:243:11 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -579,7 +579,7 @@ LL | while let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:245:11 + --> $DIR/disallowed-positions.rs:249:11 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -587,7 +587,7 @@ LL | while let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:249:22 + --> $DIR/disallowed-positions.rs:253:22 | LL | while let true = let true = true {} | ^^^ @@ -595,7 +595,7 @@ LL | while let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:252:18 + --> $DIR/disallowed-positions.rs:256:18 | LL | while return let 0 = 0 {} | ^^^ @@ -603,7 +603,7 @@ LL | while return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:255:39 + --> $DIR/disallowed-positions.rs:259:39 | LL | 'outer: loop { while break 'outer let 0 = 0 {} } | ^^^ @@ -611,7 +611,7 @@ LL | 'outer: loop { while break 'outer let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:258:18 + --> $DIR/disallowed-positions.rs:262:18 | LL | while (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -619,7 +619,7 @@ LL | while (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:261:12 + --> $DIR/disallowed-positions.rs:265:12 | LL | while (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -627,7 +627,7 @@ LL | while (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:264:12 + --> $DIR/disallowed-positions.rs:268:12 | LL | while (let 0 = 0,) {} | ^^^^^^^^^ @@ -635,7 +635,7 @@ LL | while (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:268:16 + --> $DIR/disallowed-positions.rs:272:16 | LL | while (let 0 = 0).await {} | ^^^^^^^^^ @@ -643,7 +643,7 @@ LL | while (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:272:15 + --> $DIR/disallowed-positions.rs:276:15 | LL | while (|| let 0 = 0) {} | ^^^ @@ -651,7 +651,7 @@ LL | while (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:275:12 + --> $DIR/disallowed-positions.rs:279:12 | LL | while (let 0 = 0)() {} | ^^^^^^^^^ @@ -659,7 +659,7 @@ LL | while (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:292:6 + --> $DIR/disallowed-positions.rs:296:6 | LL | &let 0 = 0; | ^^^ @@ -667,7 +667,7 @@ LL | &let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:295:6 + --> $DIR/disallowed-positions.rs:299:6 | LL | !let 0 = 0; | ^^^ @@ -675,7 +675,7 @@ LL | !let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:297:6 + --> $DIR/disallowed-positions.rs:301:6 | LL | *let 0 = 0; | ^^^ @@ -683,7 +683,7 @@ LL | *let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:299:6 + --> $DIR/disallowed-positions.rs:303:6 | LL | -let 0 = 0; | ^^^ @@ -691,7 +691,7 @@ LL | -let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:301:13 + --> $DIR/disallowed-positions.rs:305:13 | LL | let _ = let _ = 3; | ^^^ @@ -699,7 +699,7 @@ LL | let _ = let _ = 3; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:309:6 + --> $DIR/disallowed-positions.rs:313:6 | LL | (let 0 = 0)?; | ^^^ @@ -707,7 +707,7 @@ LL | (let 0 = 0)?; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:312:13 + --> $DIR/disallowed-positions.rs:316:13 | LL | true || let 0 = 0; | ^^^ @@ -715,7 +715,7 @@ LL | true || let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:314:14 + --> $DIR/disallowed-positions.rs:318:14 | LL | (true || let 0 = 0); | ^^^ @@ -723,7 +723,7 @@ LL | (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:316:22 + --> $DIR/disallowed-positions.rs:320:22 | LL | true && (true || let 0 = 0); | ^^^ @@ -731,7 +731,7 @@ LL | true && (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:320:9 + --> $DIR/disallowed-positions.rs:324:9 | LL | x = let 0 = 0; | ^^^ @@ -739,7 +739,7 @@ LL | x = let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:323:12 + --> $DIR/disallowed-positions.rs:327:12 | LL | true..(let 0 = 0); | ^^^ @@ -747,7 +747,7 @@ LL | true..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:325:8 + --> $DIR/disallowed-positions.rs:329:8 | LL | ..(let 0 = 0); | ^^^ @@ -755,7 +755,7 @@ LL | ..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:327:6 + --> $DIR/disallowed-positions.rs:331:6 | LL | (let 0 = 0)..; | ^^^ @@ -763,7 +763,7 @@ LL | (let 0 = 0)..; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:330:6 + --> $DIR/disallowed-positions.rs:334:6 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^ @@ -771,7 +771,7 @@ LL | (let Range { start: _, end: _ } = true..true || false); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:6 + --> $DIR/disallowed-positions.rs:338:6 | LL | (let true = let true = true); | ^^^ @@ -779,7 +779,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:17 + --> $DIR/disallowed-positions.rs:338:17 | LL | (let true = let true = true); | ^^^ @@ -787,7 +787,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:340:25 + --> $DIR/disallowed-positions.rs:344:25 | LL | let x = true && let y = 1; | ^^^ @@ -795,7 +795,7 @@ LL | let x = true && let y = 1; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:346:19 + --> $DIR/disallowed-positions.rs:350:19 | LL | [1, 2, 3][let _ = ()] | ^^^ @@ -803,7 +803,7 @@ LL | [1, 2, 3][let _ = ()] = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:351:6 + --> $DIR/disallowed-positions.rs:355:6 | LL | &let 0 = 0 | ^^^ @@ -811,7 +811,7 @@ LL | &let 0 = 0 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:362:17 + --> $DIR/disallowed-positions.rs:366:17 | LL | true && let 1 = 1 | ^^^ @@ -819,7 +819,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:367:17 + --> $DIR/disallowed-positions.rs:371:17 | LL | true && let 1 = 1 | ^^^ @@ -827,7 +827,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:372:17 + --> $DIR/disallowed-positions.rs:376:17 | LL | true && let 1 = 1 | ^^^ @@ -835,7 +835,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:383:17 + --> $DIR/disallowed-positions.rs:387:17 | LL | true && let 1 = 1 | ^^^ @@ -843,7 +843,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expressions must be enclosed in braces to be used as const generic arguments - --> $DIR/disallowed-positions.rs:383:9 + --> $DIR/disallowed-positions.rs:387:9 | LL | true && let 1 = 1 | ^^^^^^^^^^^^^^^^^ @@ -854,124 +854,124 @@ LL | { true && let 1 = 1 } | + + error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:436:22 + --> $DIR/disallowed-positions.rs:440:22 | LL | let x = (true && let y = 1); | ^^^ @@ -979,7 +979,7 @@ LL | let x = (true && let y = 1); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:441:20 + --> $DIR/disallowed-positions.rs:445:20 | LL | ([1, 2, 3][let _ = ()]) | ^^^ @@ -995,12 +995,48 @@ LL | use_expr!((let 0 = 1 && 0 == 0)); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:93:16 + --> $DIR/disallowed-positions.rs:91:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:91:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:16 | LL | use_expr!((let 0 = 1)); | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0658]: `let` expressions in this position are unstable --> $DIR/disallowed-positions.rs:49:8 @@ -1043,7 +1079,7 @@ LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `let` expressions in this position are unstable - --> $DIR/disallowed-positions.rs:404:8 + --> $DIR/disallowed-positions.rs:408:8 | LL | if let Some(a) = opt && (true && true) { | ^^^^^^^^^^^^^^^^^ @@ -1053,7 +1089,7 @@ LL | if let Some(a) = opt && (true && true) { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `let` expressions in this position are unstable - --> $DIR/disallowed-positions.rs:420:28 + --> $DIR/disallowed-positions.rs:424:28 | LL | if (true && (true)) && let Some(a) = opt { | ^^^^^^^^^^^^^^^^^ @@ -1063,7 +1099,7 @@ LL | if (true && (true)) && let Some(a) = opt { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `let` expressions in this position are unstable - --> $DIR/disallowed-positions.rs:423:18 + --> $DIR/disallowed-positions.rs:427:18 | LL | if (true) && let Some(a) = opt { | ^^^^^^^^^^^^^^^^^ @@ -1073,7 +1109,7 @@ LL | if (true) && let Some(a) = opt { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `let` expressions in this position are unstable - --> $DIR/disallowed-positions.rs:426:16 + --> $DIR/disallowed-positions.rs:430:16 | LL | if true && let Some(a) = opt { | ^^^^^^^^^^^^^^^^^ @@ -1083,7 +1119,7 @@ LL | if true && let Some(a) = opt { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `let` expressions in this position are unstable - --> $DIR/disallowed-positions.rs:431:8 + --> $DIR/disallowed-positions.rs:435:8 | LL | if let true = (true && fun()) && (true) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -1093,7 +1129,7 @@ LL | if let true = (true && fun()) && (true) { = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:130:8 + --> $DIR/disallowed-positions.rs:134:8 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1102,7 +1138,7 @@ LL | if true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:139:12 + --> $DIR/disallowed-positions.rs:143:12 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1113,7 +1149,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:142:12 + --> $DIR/disallowed-positions.rs:146:12 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1124,7 +1160,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:148:12 + --> $DIR/disallowed-positions.rs:152:12 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1135,7 +1171,7 @@ LL | if let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:154:12 + --> $DIR/disallowed-positions.rs:158:12 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1146,7 +1182,7 @@ LL | if let Range { start: true, end } = t..&&false {} found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:110:20 + --> $DIR/disallowed-positions.rs:114:20 | LL | if let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` @@ -1154,7 +1190,7 @@ LL | if let 0 = 0? {} = help: the trait `Try` is not implemented for `{integer}` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:221:11 + --> $DIR/disallowed-positions.rs:225:11 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1163,7 +1199,7 @@ LL | while true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:230:15 + --> $DIR/disallowed-positions.rs:234:15 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1174,7 +1210,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:233:15 + --> $DIR/disallowed-positions.rs:237:15 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1185,7 +1221,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:239:15 + --> $DIR/disallowed-positions.rs:243:15 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1196,7 +1232,7 @@ LL | while let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:245:15 + --> $DIR/disallowed-positions.rs:249:15 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1207,7 +1243,7 @@ LL | while let Range { start: true, end } = t..&&false {} found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:201:23 + --> $DIR/disallowed-positions.rs:205:23 | LL | while let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` @@ -1215,7 +1251,7 @@ LL | while let 0 = 0? {} = help: the trait `Try` is not implemented for `{integer}` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:330:10 + --> $DIR/disallowed-positions.rs:334:10 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1226,14 +1262,14 @@ LL | (let Range { start: _, end: _ } = true..true || false); found struct `std::ops::Range<_>` error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:305:17 + --> $DIR/disallowed-positions.rs:309:17 | LL | let 0 = 0?; | ^^ the `?` operator cannot be applied to type `{integer}` | = help: the trait `Try` is not implemented for `{integer}` -error: aborting due to 130 previous errors +error: aborting due to 134 previous errors Some errors have detailed explanations: E0277, E0308, E0658. For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.nothing.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.nothing.stderr index 2d5fd1144ad..943956feb4e 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.nothing.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.nothing.stderr @@ -233,7 +233,7 @@ LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:99:9 + --> $DIR/disallowed-positions.rs:103:9 | LL | if &let 0 = 0 {} | ^^^^^^^^^ @@ -241,7 +241,7 @@ LL | if &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:102:9 + --> $DIR/disallowed-positions.rs:106:9 | LL | if !let 0 = 0 {} | ^^^^^^^^^ @@ -249,7 +249,7 @@ LL | if !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:104:9 + --> $DIR/disallowed-positions.rs:108:9 | LL | if *let 0 = 0 {} | ^^^^^^^^^ @@ -257,7 +257,7 @@ LL | if *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:106:9 + --> $DIR/disallowed-positions.rs:110:9 | LL | if -let 0 = 0 {} | ^^^^^^^^^ @@ -265,7 +265,7 @@ LL | if -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:114:9 + --> $DIR/disallowed-positions.rs:118:9 | LL | if (let 0 = 0)? {} | ^^^^^^^^^ @@ -273,20 +273,20 @@ LL | if (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:117:16 + --> $DIR/disallowed-positions.rs:121:16 | LL | if true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:117:13 + --> $DIR/disallowed-positions.rs:121:13 | LL | if true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:119:17 + --> $DIR/disallowed-positions.rs:123:17 | LL | if (true || let 0 = 0) {} | ^^^^^^^^^ @@ -294,7 +294,7 @@ LL | if (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:121:25 + --> $DIR/disallowed-positions.rs:125:25 | LL | if true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -302,7 +302,7 @@ LL | if true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:123:25 + --> $DIR/disallowed-positions.rs:127:25 | LL | if true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -310,7 +310,7 @@ LL | if true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:127:12 + --> $DIR/disallowed-positions.rs:131:12 | LL | if x = let 0 = 0 {} | ^^^ @@ -318,7 +318,7 @@ LL | if x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:130:15 + --> $DIR/disallowed-positions.rs:134:15 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^ @@ -326,7 +326,7 @@ LL | if true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:133:11 + --> $DIR/disallowed-positions.rs:137:11 | LL | if ..(let 0 = 0) {} | ^^^^^^^^^ @@ -334,7 +334,7 @@ LL | if ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:135:9 + --> $DIR/disallowed-positions.rs:139:9 | LL | if (let 0 = 0).. {} | ^^^^^^^^^ @@ -342,7 +342,7 @@ LL | if (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:139:8 + --> $DIR/disallowed-positions.rs:143:8 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -350,7 +350,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:142:8 + --> $DIR/disallowed-positions.rs:146:8 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -358,7 +358,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:148:8 + --> $DIR/disallowed-positions.rs:152:8 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -366,7 +366,7 @@ LL | if let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:154:8 + --> $DIR/disallowed-positions.rs:158:8 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -374,7 +374,7 @@ LL | if let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:158:19 + --> $DIR/disallowed-positions.rs:162:19 | LL | if let true = let true = true {} | ^^^ @@ -382,7 +382,7 @@ LL | if let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:161:15 + --> $DIR/disallowed-positions.rs:165:15 | LL | if return let 0 = 0 {} | ^^^ @@ -390,7 +390,7 @@ LL | if return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:164:21 + --> $DIR/disallowed-positions.rs:168:21 | LL | loop { if break let 0 = 0 {} } | ^^^ @@ -398,7 +398,7 @@ LL | loop { if break let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:167:15 + --> $DIR/disallowed-positions.rs:171:15 | LL | if (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -406,7 +406,7 @@ LL | if (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:170:9 + --> $DIR/disallowed-positions.rs:174:9 | LL | if (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -414,7 +414,7 @@ LL | if (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:173:9 + --> $DIR/disallowed-positions.rs:177:9 | LL | if (let 0 = 0,) {} | ^^^^^^^^^ @@ -422,7 +422,7 @@ LL | if (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:177:13 + --> $DIR/disallowed-positions.rs:181:13 | LL | if (let 0 = 0).await {} | ^^^^^^^^^ @@ -430,7 +430,7 @@ LL | if (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:181:12 + --> $DIR/disallowed-positions.rs:185:12 | LL | if (|| let 0 = 0) {} | ^^^ @@ -438,7 +438,7 @@ LL | if (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:184:9 + --> $DIR/disallowed-positions.rs:188:9 | LL | if (let 0 = 0)() {} | ^^^^^^^^^ @@ -446,7 +446,7 @@ LL | if (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:190:12 + --> $DIR/disallowed-positions.rs:194:12 | LL | while &let 0 = 0 {} | ^^^^^^^^^ @@ -454,7 +454,7 @@ LL | while &let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:193:12 + --> $DIR/disallowed-positions.rs:197:12 | LL | while !let 0 = 0 {} | ^^^^^^^^^ @@ -462,7 +462,7 @@ LL | while !let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:195:12 + --> $DIR/disallowed-positions.rs:199:12 | LL | while *let 0 = 0 {} | ^^^^^^^^^ @@ -470,7 +470,7 @@ LL | while *let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:197:12 + --> $DIR/disallowed-positions.rs:201:12 | LL | while -let 0 = 0 {} | ^^^^^^^^^ @@ -478,7 +478,7 @@ LL | while -let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:205:12 + --> $DIR/disallowed-positions.rs:209:12 | LL | while (let 0 = 0)? {} | ^^^^^^^^^ @@ -486,20 +486,20 @@ LL | while (let 0 = 0)? {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:208:19 + --> $DIR/disallowed-positions.rs:212:19 | LL | while true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:208:16 + --> $DIR/disallowed-positions.rs:212:16 | LL | while true || let 0 = 0 {} | ^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:210:20 + --> $DIR/disallowed-positions.rs:214:20 | LL | while (true || let 0 = 0) {} | ^^^^^^^^^ @@ -507,7 +507,7 @@ LL | while (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:212:28 + --> $DIR/disallowed-positions.rs:216:28 | LL | while true && (true || let 0 = 0) {} | ^^^^^^^^^ @@ -515,7 +515,7 @@ LL | while true && (true || let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:214:28 + --> $DIR/disallowed-positions.rs:218:28 | LL | while true || (true && let 0 = 0) {} | ^^^^^^^^^ @@ -523,7 +523,7 @@ LL | while true || (true && let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:218:15 + --> $DIR/disallowed-positions.rs:222:15 | LL | while x = let 0 = 0 {} | ^^^ @@ -531,7 +531,7 @@ LL | while x = let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:221:18 + --> $DIR/disallowed-positions.rs:225:18 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^ @@ -539,7 +539,7 @@ LL | while true..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:224:14 + --> $DIR/disallowed-positions.rs:228:14 | LL | while ..(let 0 = 0) {} | ^^^^^^^^^ @@ -547,7 +547,7 @@ LL | while ..(let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:226:12 + --> $DIR/disallowed-positions.rs:230:12 | LL | while (let 0 = 0).. {} | ^^^^^^^^^ @@ -555,7 +555,7 @@ LL | while (let 0 = 0).. {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:230:11 + --> $DIR/disallowed-positions.rs:234:11 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -563,7 +563,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:233:11 + --> $DIR/disallowed-positions.rs:237:11 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -571,7 +571,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:239:11 + --> $DIR/disallowed-positions.rs:243:11 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -579,7 +579,7 @@ LL | while let Range { start: F, end } = F..|| true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:245:11 + --> $DIR/disallowed-positions.rs:249:11 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -587,7 +587,7 @@ LL | while let Range { start: true, end } = t..&&false {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:249:22 + --> $DIR/disallowed-positions.rs:253:22 | LL | while let true = let true = true {} | ^^^ @@ -595,7 +595,7 @@ LL | while let true = let true = true {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:252:18 + --> $DIR/disallowed-positions.rs:256:18 | LL | while return let 0 = 0 {} | ^^^ @@ -603,7 +603,7 @@ LL | while return let 0 = 0 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:255:39 + --> $DIR/disallowed-positions.rs:259:39 | LL | 'outer: loop { while break 'outer let 0 = 0 {} } | ^^^ @@ -611,7 +611,7 @@ LL | 'outer: loop { while break 'outer let 0 = 0 {} } = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:258:18 + --> $DIR/disallowed-positions.rs:262:18 | LL | while (match let 0 = 0 { _ => { false } }) {} | ^^^ @@ -619,7 +619,7 @@ LL | while (match let 0 = 0 { _ => { false } }) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:261:12 + --> $DIR/disallowed-positions.rs:265:12 | LL | while (let 0 = 0, false).1 {} | ^^^^^^^^^ @@ -627,7 +627,7 @@ LL | while (let 0 = 0, false).1 {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:264:12 + --> $DIR/disallowed-positions.rs:268:12 | LL | while (let 0 = 0,) {} | ^^^^^^^^^ @@ -635,7 +635,7 @@ LL | while (let 0 = 0,) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:268:16 + --> $DIR/disallowed-positions.rs:272:16 | LL | while (let 0 = 0).await {} | ^^^^^^^^^ @@ -643,7 +643,7 @@ LL | while (let 0 = 0).await {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:272:15 + --> $DIR/disallowed-positions.rs:276:15 | LL | while (|| let 0 = 0) {} | ^^^ @@ -651,7 +651,7 @@ LL | while (|| let 0 = 0) {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:275:12 + --> $DIR/disallowed-positions.rs:279:12 | LL | while (let 0 = 0)() {} | ^^^^^^^^^ @@ -659,7 +659,7 @@ LL | while (let 0 = 0)() {} = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:292:6 + --> $DIR/disallowed-positions.rs:296:6 | LL | &let 0 = 0; | ^^^ @@ -667,7 +667,7 @@ LL | &let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:295:6 + --> $DIR/disallowed-positions.rs:299:6 | LL | !let 0 = 0; | ^^^ @@ -675,7 +675,7 @@ LL | !let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:297:6 + --> $DIR/disallowed-positions.rs:301:6 | LL | *let 0 = 0; | ^^^ @@ -683,7 +683,7 @@ LL | *let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:299:6 + --> $DIR/disallowed-positions.rs:303:6 | LL | -let 0 = 0; | ^^^ @@ -691,7 +691,7 @@ LL | -let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:301:13 + --> $DIR/disallowed-positions.rs:305:13 | LL | let _ = let _ = 3; | ^^^ @@ -699,7 +699,7 @@ LL | let _ = let _ = 3; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:309:6 + --> $DIR/disallowed-positions.rs:313:6 | LL | (let 0 = 0)?; | ^^^ @@ -707,7 +707,7 @@ LL | (let 0 = 0)?; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:312:13 + --> $DIR/disallowed-positions.rs:316:13 | LL | true || let 0 = 0; | ^^^ @@ -715,7 +715,7 @@ LL | true || let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:314:14 + --> $DIR/disallowed-positions.rs:318:14 | LL | (true || let 0 = 0); | ^^^ @@ -723,7 +723,7 @@ LL | (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:316:22 + --> $DIR/disallowed-positions.rs:320:22 | LL | true && (true || let 0 = 0); | ^^^ @@ -731,7 +731,7 @@ LL | true && (true || let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:320:9 + --> $DIR/disallowed-positions.rs:324:9 | LL | x = let 0 = 0; | ^^^ @@ -739,7 +739,7 @@ LL | x = let 0 = 0; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:323:12 + --> $DIR/disallowed-positions.rs:327:12 | LL | true..(let 0 = 0); | ^^^ @@ -747,7 +747,7 @@ LL | true..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:325:8 + --> $DIR/disallowed-positions.rs:329:8 | LL | ..(let 0 = 0); | ^^^ @@ -755,7 +755,7 @@ LL | ..(let 0 = 0); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:327:6 + --> $DIR/disallowed-positions.rs:331:6 | LL | (let 0 = 0)..; | ^^^ @@ -763,7 +763,7 @@ LL | (let 0 = 0)..; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:330:6 + --> $DIR/disallowed-positions.rs:334:6 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^ @@ -771,7 +771,7 @@ LL | (let Range { start: _, end: _ } = true..true || false); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:6 + --> $DIR/disallowed-positions.rs:338:6 | LL | (let true = let true = true); | ^^^ @@ -779,7 +779,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:17 + --> $DIR/disallowed-positions.rs:338:17 | LL | (let true = let true = true); | ^^^ @@ -787,7 +787,7 @@ LL | (let true = let true = true); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:340:25 + --> $DIR/disallowed-positions.rs:344:25 | LL | let x = true && let y = 1; | ^^^ @@ -795,7 +795,7 @@ LL | let x = true && let y = 1; = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:346:19 + --> $DIR/disallowed-positions.rs:350:19 | LL | [1, 2, 3][let _ = ()] | ^^^ @@ -803,7 +803,7 @@ LL | [1, 2, 3][let _ = ()] = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:351:6 + --> $DIR/disallowed-positions.rs:355:6 | LL | &let 0 = 0 | ^^^ @@ -811,7 +811,7 @@ LL | &let 0 = 0 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:362:17 + --> $DIR/disallowed-positions.rs:366:17 | LL | true && let 1 = 1 | ^^^ @@ -819,7 +819,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:367:17 + --> $DIR/disallowed-positions.rs:371:17 | LL | true && let 1 = 1 | ^^^ @@ -827,7 +827,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:372:17 + --> $DIR/disallowed-positions.rs:376:17 | LL | true && let 1 = 1 | ^^^ @@ -835,7 +835,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:383:17 + --> $DIR/disallowed-positions.rs:387:17 | LL | true && let 1 = 1 | ^^^ @@ -843,7 +843,7 @@ LL | true && let 1 = 1 = note: only supported directly in conditions of `if` and `while` expressions error: expressions must be enclosed in braces to be used as const generic arguments - --> $DIR/disallowed-positions.rs:383:9 + --> $DIR/disallowed-positions.rs:387:9 | LL | true && let 1 = 1 | ^^^^^^^^^^^^^^^^^ @@ -854,124 +854,124 @@ LL | { true && let 1 = 1 } | + + error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:393:9 + --> $DIR/disallowed-positions.rs:397:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:397:9 + --> $DIR/disallowed-positions.rs:401:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:9 + --> $DIR/disallowed-positions.rs:404:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:400:32 + --> $DIR/disallowed-positions.rs:404:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:9 + --> $DIR/disallowed-positions.rs:412:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:408:31 + --> $DIR/disallowed-positions.rs:412:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:9 + --> $DIR/disallowed-positions.rs:416:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:412:31 + --> $DIR/disallowed-positions.rs:416:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:416:9 + --> $DIR/disallowed-positions.rs:420:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:436:22 + --> $DIR/disallowed-positions.rs:440:22 | LL | let x = (true && let y = 1); | ^^^ @@ -979,7 +979,7 @@ LL | let x = (true && let y = 1); = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:441:20 + --> $DIR/disallowed-positions.rs:445:20 | LL | ([1, 2, 3][let _ = ()]) | ^^^ diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs index 8eb8d617d58..99f99c2be72 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs @@ -90,8 +90,12 @@ fn _macros() { } use_expr!((let 0 = 1 && 0 == 0)); //[feature,no_feature]~^ ERROR expected expression, found `let` statement + //[feature,no_feature]~| ERROR expected expression, found `let` statement + //[feature,no_feature]~| ERROR expected expression, found `let` statement use_expr!((let 0 = 1)); //[feature,no_feature]~^ ERROR expected expression, found `let` statement + //[feature,no_feature]~| ERROR expected expression, found `let` statement + //[feature,no_feature]~| ERROR expected expression, found `let` statement } #[cfg(not(nothing))] |