diff options
Diffstat (limited to 'compiler')
20 files changed, 101 insertions, 110 deletions
diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 8bb4442d1bb..d0bb05c3654 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -13,7 +13,7 @@ //! - [`FnDecl`], [`FnHeader`] and [`Param`]: Metadata associated with a function declaration. //! - [`Generics`], [`GenericParam`], [`WhereClause`]: Metadata associated with generic parameters. //! - [`EnumDef`] and [`Variant`]: Enum declaration. -//! - [`Lit`] and [`LitKind`]: Literal expressions. +//! - [`MetaItemLit`] and [`LitKind`]: Literal expressions. //! - [`MacroDef`], [`MacStmtStyle`], [`MacCall`], [`MacDelimiter`]: Macro definition and invocation. //! - [`Attribute`]: Metadata associated with item. //! - [`UnOp`], [`BinOp`], and [`BinOpKind`]: Unary and binary operators. @@ -489,7 +489,7 @@ pub enum NestedMetaItem { /// A literal. /// /// E.g., `"foo"`, `64`, `true`. - Literal(Lit), + Lit(MetaItemLit), } /// A spanned compile-time attribute item. @@ -518,7 +518,7 @@ pub enum MetaItemKind { /// Name value meta item. /// /// E.g., `feature = "foo"` as in `#[feature = "foo"]`. - NameValue(Lit), + NameValue(MetaItemLit), } /// A block (`{ .. }`). @@ -1599,12 +1599,12 @@ pub enum AttrArgs { } // The RHS of an `AttrArgs::Eq` starts out as an expression. Once macro -// expansion is completed, all cases end up either as a literal, which is the -// form used after lowering to HIR, or as an error. +// expansion is completed, all cases end up either as a meta item literal, +// which is the form used after lowering to HIR, or as an error. #[derive(Clone, Encodable, Decodable, Debug)] pub enum AttrArgsEq { Ast(P<Expr>), - Hir(Lit), + Hir(MetaItemLit), } impl AttrArgs { @@ -1726,19 +1726,18 @@ pub enum StrStyle { Raw(u8), } -/// An AST literal. +/// A literal in a meta item. #[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] -pub struct Lit { +pub struct MetaItemLit { /// The original literal token as written in source code. pub token_lit: token::Lit, /// The "semantic" representation of the literal lowered from the original tokens. /// Strings are unescaped, hexadecimal forms are eliminated, etc. - /// FIXME: Remove this and only create the semantic representation during lowering to HIR. pub kind: LitKind, pub span: Span, } -/// Same as `Lit`, but restricted to string literals. +/// Similar to `MetaItemLit`, but restricted to string literals. #[derive(Clone, Copy, Encodable, Decodable, Debug)] pub struct StrLit { /// The original literal token as written in source code. @@ -1747,7 +1746,6 @@ pub struct StrLit { pub suffix: Option<Symbol>, pub span: Span, /// The unescaped "semantic" representation of the literal lowered from the original token. - /// FIXME: Remove this and only create the semantic representation during lowering to HIR. pub symbol_unescaped: Symbol, } @@ -1783,6 +1781,8 @@ pub enum LitFloatType { Unsuffixed, } +/// This type is used within both `ast::MetaItemLit` and `hir::Lit`. +/// /// Note that the entire literal (including the suffix) is considered when /// deciding the `LitKind`. This means that float literals like `1f32` are /// classified by this type as `Float`. This is different to `token::LitKind` @@ -3096,9 +3096,9 @@ mod size_asserts { static_assert_size!(Impl, 184); static_assert_size!(Item, 184); static_assert_size!(ItemKind, 112); - static_assert_size!(Lit, 48); static_assert_size!(LitKind, 24); static_assert_size!(Local, 72); + static_assert_size!(MetaItemLit, 48); static_assert_size!(Param, 40); static_assert_size!(Pat, 88); static_assert_size!(Path, 24); diff --git a/compiler/rustc_ast/src/attr/mod.rs b/compiler/rustc_ast/src/attr/mod.rs index c948faeb358..7a86b471ba2 100644 --- a/compiler/rustc_ast/src/attr/mod.rs +++ b/compiler/rustc_ast/src/attr/mod.rs @@ -2,7 +2,7 @@ use crate::ast; use crate::ast::{AttrArgs, AttrArgsEq, AttrId, AttrItem, AttrKind, AttrStyle, Attribute}; -use crate::ast::{DelimArgs, Lit, LitKind}; +use crate::ast::{DelimArgs, LitKind, MetaItemLit}; use crate::ast::{MacDelimiter, MetaItem, MetaItemKind, NestedMetaItem}; use crate::ast::{Path, PathSegment}; use crate::ptr::P; @@ -50,10 +50,10 @@ impl NestedMetaItem { } } - /// Returns the `Lit` if `self` is a `NestedMetaItem::Literal`s. - pub fn literal(&self) -> Option<&Lit> { + /// Returns the `MetaItemLit` if `self` is a `NestedMetaItem::Literal`s. + pub fn lit(&self) -> Option<&MetaItemLit> { match self { - NestedMetaItem::Literal(lit) => Some(lit), + NestedMetaItem::Lit(lit) => Some(lit), _ => None, } } @@ -78,12 +78,12 @@ impl NestedMetaItem { } /// Returns a name and single literal value tuple of the `MetaItem`. - pub fn name_value_literal(&self) -> Option<(Symbol, &Lit)> { + pub fn name_value_literal(&self) -> Option<(Symbol, &MetaItemLit)> { self.meta_item().and_then(|meta_item| { meta_item.meta_item_list().and_then(|meta_item_list| { if meta_item_list.len() == 1 && let Some(ident) = meta_item.ident() - && let Some(lit) = meta_item_list[0].literal() + && let Some(lit) = meta_item_list[0].lit() { return Some((ident.name, lit)); } @@ -179,7 +179,7 @@ impl MetaItem { /// #[attribute(name = "value")] /// ^^^^^^^^^^^^^^ /// ``` - pub fn name_value_literal(&self) -> Option<&Lit> { + pub fn name_value_literal(&self) -> Option<&MetaItemLit> { match &self.kind { MetaItemKind::NameValue(v) => Some(v), _ => None, @@ -334,7 +334,7 @@ pub fn mk_name_value_item_str(ident: Ident, str: Symbol, str_span: Span) -> Meta } pub fn mk_name_value_item(ident: Ident, lit_kind: LitKind, lit_span: Span) -> MetaItem { - let lit = Lit::from_lit_kind(lit_kind, lit_span); + let lit = MetaItemLit::from_lit_kind(lit_kind, lit_span); let span = ident.span.to(lit_span); MetaItem { path: Path::from_ident(ident), span, kind: MetaItemKind::NameValue(lit) } } @@ -604,7 +604,7 @@ impl MetaItemKind { MetaItemKind::name_value_from_tokens(&mut inner_tokens.into_trees()) } Some(TokenTree::Token(token, _)) => { - Lit::from_token(&token).map(MetaItemKind::NameValue) + MetaItemLit::from_token(&token).map(MetaItemKind::NameValue) } _ => None, } @@ -622,7 +622,7 @@ impl MetaItemKind { AttrArgs::Eq(_, AttrArgsEq::Ast(expr)) => match expr.kind { ast::ExprKind::Lit(token_lit) => { // Turn failures to `None`, we'll get parse errors elsewhere. - Lit::from_token_lit(token_lit, expr.span) + MetaItemLit::from_token_lit(token_lit, expr.span) .ok() .map(|lit| MetaItemKind::NameValue(lit)) } @@ -655,14 +655,14 @@ impl NestedMetaItem { pub fn span(&self) -> Span { match self { NestedMetaItem::MetaItem(item) => item.span, - NestedMetaItem::Literal(lit) => lit.span, + NestedMetaItem::Lit(lit) => lit.span, } } fn token_trees(&self) -> Vec<TokenTree> { match self { NestedMetaItem::MetaItem(item) => item.token_trees(), - NestedMetaItem::Literal(lit) => { + NestedMetaItem::Lit(lit) => { vec![TokenTree::Token(lit.to_token(), Spacing::Alone)] } } @@ -674,10 +674,10 @@ impl NestedMetaItem { { match tokens.peek() { Some(TokenTree::Token(token, _)) - if let Some(lit) = Lit::from_token(token) => + if let Some(lit) = MetaItemLit::from_token(token) => { tokens.next(); - return Some(NestedMetaItem::Literal(lit)); + return Some(NestedMetaItem::Lit(lit)); } Some(TokenTree::Delimited(_, Delimiter::Invisible, inner_tokens)) => { let inner_tokens = inner_tokens.clone(); diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 11def67c463..cb3c54fa03c 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -628,7 +628,7 @@ pub fn noop_visit_macro_def<T: MutVisitor>(macro_def: &mut MacroDef, vis: &mut T pub fn noop_visit_meta_list_item<T: MutVisitor>(li: &mut NestedMetaItem, vis: &mut T) { match li { NestedMetaItem::MetaItem(mi) => vis.visit_meta_item(mi), - NestedMetaItem::Literal(_lit) => {} + NestedMetaItem::Lit(_lit) => {} } } diff --git a/compiler/rustc_ast/src/util/literal.rs b/compiler/rustc_ast/src/util/literal.rs index db2ac9626af..42cba07fcef 100644 --- a/compiler/rustc_ast/src/util/literal.rs +++ b/compiler/rustc_ast/src/util/literal.rs @@ -1,8 +1,7 @@ //! Code related to parsing literals. -use crate::ast::{self, Lit, LitKind}; +use crate::ast::{self, LitKind, MetaItemLit}; use crate::token::{self, Token}; -use rustc_data_structures::sync::Lrc; use rustc_lexer::unescape::{byte_from_char, unescape_byte, unescape_char, unescape_literal, Mode}; use rustc_span::symbol::{kw, sym, Symbol}; use rustc_span::Span; @@ -196,33 +195,26 @@ impl LitKind { } } -impl Lit { - /// Converts literal token into an AST literal. - pub fn from_token_lit(token_lit: token::Lit, span: Span) -> Result<Lit, LitError> { - Ok(Lit { token_lit, kind: LitKind::from_token_lit(token_lit)?, span }) +impl MetaItemLit { + /// Converts token literal into a meta item literal. + pub fn from_token_lit(token_lit: token::Lit, span: Span) -> Result<MetaItemLit, LitError> { + Ok(MetaItemLit { token_lit, kind: LitKind::from_token_lit(token_lit)?, span }) } - /// Converts an arbitrary token into an AST literal. - pub fn from_token(token: &Token) -> Option<Lit> { + /// Converts an arbitrary token into meta item literal. + pub fn from_token(token: &Token) -> Option<MetaItemLit> { token::Lit::from_token(token) - .and_then(|token_lit| Lit::from_token_lit(token_lit, token.span).ok()) + .and_then(|token_lit| MetaItemLit::from_token_lit(token_lit, token.span).ok()) } - /// Attempts to recover an AST literal from semantic literal. + /// Attempts to create a meta item literal from a `LitKind`. /// This function is used when the original token doesn't exist (e.g. the literal is created /// by an AST-based macro) or unavailable (e.g. from HIR pretty-printing). - pub fn from_lit_kind(kind: LitKind, span: Span) -> Lit { - Lit { token_lit: kind.to_token_lit(), kind, span } + pub fn from_lit_kind(kind: LitKind, span: Span) -> MetaItemLit { + MetaItemLit { token_lit: kind.to_token_lit(), kind, span } } - /// Recovers an AST literal from a string of bytes produced by `include_bytes!`. - /// This requires ASCII-escaping the string, which can result in poor performance - /// for very large strings of bytes. - pub fn from_included_bytes(bytes: &Lrc<[u8]>, span: Span) -> Lit { - Self::from_lit_kind(LitKind::ByteStr(bytes.clone()), span) - } - - /// Losslessly convert an AST literal into a token. + /// Losslessly convert a meta item literal into a token. pub fn to_token(&self) -> Token { let kind = match self.token_lit.kind { token::Bool => token::Ident(self.token_lit.symbol, false), diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index a123a58a8fb..ad6e72d0156 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -948,17 +948,12 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { AttrArgs::Eq(eq_span, AttrArgsEq::Ast(expr)) => { // In valid code the value always ends up as a single literal. Otherwise, a dummy // literal suffices because the error is handled elsewhere. - let lit = if let ExprKind::Lit(token_lit) = expr.kind { - match Lit::from_token_lit(token_lit, expr.span) { - Ok(lit) => lit, - Err(_err) => Lit { - token_lit: token::Lit::new(token::LitKind::Err, kw::Empty, None), - kind: LitKind::Err, - span: DUMMY_SP, - }, - } + let lit = if let ExprKind::Lit(token_lit) = expr.kind + && let Ok(lit) = MetaItemLit::from_token_lit(token_lit, expr.span) + { + lit } else { - Lit { + MetaItemLit { token_lit: token::Lit::new(token::LitKind::Err, kw::Empty, None), kind: LitKind::Err, span: DUMMY_SP, diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index 991f6e0ba22..7a9243c511b 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -371,7 +371,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere } } - fn print_literal(&mut self, lit: &ast::Lit) { + fn print_meta_item_lit(&mut self, lit: &ast::MetaItemLit) { self.print_token_literal(lit.token_lit, lit.span) } @@ -488,7 +488,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere self.print_path(&item.path, false, 0); self.space(); self.word_space("="); - let token_str = self.literal_to_string(lit); + let token_str = self.meta_item_lit_to_string(lit); self.word(token_str); } } @@ -498,7 +498,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere fn print_meta_list_item(&mut self, item: &ast::NestedMetaItem) { match item { ast::NestedMetaItem::MetaItem(ref mi) => self.print_meta_item(mi), - ast::NestedMetaItem::Literal(ref lit) => self.print_literal(lit), + ast::NestedMetaItem::Lit(ref lit) => self.print_meta_item_lit(lit), } } @@ -510,7 +510,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere self.print_path(&item.path, false, 0); self.space(); self.word_space("="); - self.print_literal(value); + self.print_meta_item_lit(value); } ast::MetaItemKind::List(ref items) => { self.print_path(&item.path, false, 0); @@ -825,8 +825,8 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere Self::to_string(|s| s.print_expr(e)) } - fn literal_to_string(&self, lit: &ast::Lit) -> String { - Self::to_string(|s| s.print_literal(lit)) + fn meta_item_lit_to_string(&self, lit: &ast::MetaItemLit) -> String { + Self::to_string(|s| s.print_meta_item_lit(lit)) } fn tt_to_string(&self, tt: &TokenTree) -> String { diff --git a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs index 949d98f96ab..f4d77549eff 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs @@ -328,8 +328,8 @@ impl<'a> State<'a> { self.print_token_literal(token_lit, expr.span); } ast::ExprKind::IncludedBytes(ref bytes) => { - let lit = ast::Lit::from_included_bytes(bytes, expr.span); - self.print_literal(&lit) + let lit = ast::LitKind::ByteStr(bytes.clone()).to_token_lit(); + self.print_token_literal(lit, expr.span) } ast::ExprKind::Cast(ref expr, ref ty) => { let prec = AssocOp::As.precedence() as i8; diff --git a/compiler/rustc_attr/src/builtin.rs b/compiler/rustc_attr/src/builtin.rs index 753f62dd589..13b48d8f89a 100644 --- a/compiler/rustc_attr/src/builtin.rs +++ b/compiler/rustc_attr/src/builtin.rs @@ -1,7 +1,7 @@ //! Parsing and validation of builtin attributes use rustc_ast as ast; -use rustc_ast::{Attribute, Lit, LitKind, MetaItem, MetaItemKind, NestedMetaItem, NodeId}; +use rustc_ast::{Attribute, LitKind, MetaItem, MetaItemKind, MetaItemLit, NestedMetaItem, NodeId}; use rustc_ast_pretty::pprust; use rustc_feature::{find_gated_cfg, is_builtin_attr_name, Features, GatedCfg}; use rustc_macros::HashStable_Generic; @@ -486,7 +486,7 @@ where continue 'outer; } }, - NestedMetaItem::Literal(lit) => { + NestedMetaItem::Lit(lit) => { handle_errors( &sess.parse_sess, lit.span, @@ -658,11 +658,11 @@ pub fn eval_condition( ast::MetaItemKind::List(ref mis) if cfg.name_or_empty() == sym::version => { try_gate_cfg(sym::version, cfg.span, sess, features); let (min_version, span) = match &mis[..] { - [NestedMetaItem::Literal(Lit { kind: LitKind::Str(sym, ..), span, .. })] => { + [NestedMetaItem::Lit(MetaItemLit { kind: LitKind::Str(sym, ..), span, .. })] => { (sym, span) } [ - NestedMetaItem::Literal(Lit { span, .. }) + NestedMetaItem::Lit(MetaItemLit { span, .. }) | NestedMetaItem::MetaItem(MetaItem { span, .. }), ] => { sess.emit_err(session_diagnostics::ExpectedVersionLiteral { span: *span }); @@ -899,7 +899,7 @@ where continue 'outer; } }, - NestedMetaItem::Literal(lit) => { + NestedMetaItem::Lit(lit) => { handle_errors( &sess.parse_sess, lit.span, diff --git a/compiler/rustc_builtin_macros/src/derive.rs b/compiler/rustc_builtin_macros/src/derive.rs index 01f237e6ab5..c8a2fca00e8 100644 --- a/compiler/rustc_builtin_macros/src/derive.rs +++ b/compiler/rustc_builtin_macros/src/derive.rs @@ -48,9 +48,9 @@ impl MultiItemModifier for Expander { .into_iter() .filter_map(|nested_meta| match nested_meta { NestedMetaItem::MetaItem(meta) => Some(meta), - NestedMetaItem::Literal(lit) => { + NestedMetaItem::Lit(lit) => { // Reject `#[derive("Debug")]`. - report_unexpected_literal(sess, &lit); + report_unexpected_meta_item_lit(sess, &lit); None } }) @@ -127,7 +127,7 @@ fn report_bad_target(sess: &Session, item: &Annotatable, span: Span) -> bool { bad_target } -fn report_unexpected_literal(sess: &Session, lit: &ast::Lit) { +fn report_unexpected_meta_item_lit(sess: &Session, lit: &ast::MetaItemLit) { let help_msg = match lit.token_lit.kind { token::Str if rustc_lexer::is_ident(lit.token_lit.symbol.as_str()) => { format!("try using `#[derive({})]`", lit.token_lit.symbol) diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs index 2e832deeecd..76165796117 100644 --- a/compiler/rustc_expand/src/proc_macro_server.rs +++ b/compiler/rustc_expand/src/proc_macro_server.rs @@ -526,11 +526,8 @@ impl server::TokenStream for Rustc<'_, '_> { Ok(tokenstream::TokenStream::token_alone(token::Literal(*token_lit), expr.span)) } ast::ExprKind::IncludedBytes(bytes) => { - let lit = ast::Lit::from_included_bytes(bytes, expr.span); - Ok(tokenstream::TokenStream::token_alone( - token::TokenKind::Literal(lit.token_lit), - expr.span, - )) + let lit = ast::LitKind::ByteStr(bytes.clone()).to_token_lit(); + Ok(tokenstream::TokenStream::token_alone(token::TokenKind::Literal(lit), expr.span)) } ast::ExprKind::Unary(ast::UnOp::Neg, e) => match &e.kind { ast::ExprKind::Lit(token_lit) => match token_lit { diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 4c1d95a452d..638dd6d756b 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -2145,7 +2145,7 @@ fn should_inherit_track_caller(tcx: TyCtxt<'_>, def_id: DefId) -> bool { } fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &ast::Attribute) -> Option<u16> { - use rustc_ast::{Lit, LitIntType, LitKind}; + use rustc_ast::{LitIntType, LitKind, MetaItemLit}; if !tcx.features().raw_dylib && tcx.sess.target.arch == "x86" { feature_err( &tcx.sess.parse_sess, @@ -2158,7 +2158,7 @@ fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &ast::Attribute) -> Option<u16> { let meta_item_list = attr.meta_item_list(); let meta_item_list = meta_item_list.as_deref(); let sole_meta_list = match meta_item_list { - Some([item]) => item.literal(), + Some([item]) => item.lit(), Some(_) => { tcx.sess .struct_span_err(attr.span, "incorrect number of arguments to `#[link_ordinal]`") @@ -2168,7 +2168,9 @@ fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &ast::Attribute) -> Option<u16> { } _ => None, }; - if let Some(Lit { kind: LitKind::Int(ordinal, LitIntType::Unsuffixed), .. }) = sole_meta_list { + if let Some(MetaItemLit { kind: LitKind::Int(ordinal, LitIntType::Unsuffixed), .. }) = + sole_meta_list + { // According to the table at https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-header, // the ordinal must fit into 16 bits. Similarly, the Ordinal field in COFFShortExport (defined // in llvm/include/llvm/Object/COFFImportFile.h), which we use to communicate import information diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index 99c934862c4..4c22ab68a56 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -194,7 +194,7 @@ pub fn parse_check_cfg(specs: Vec<String>) -> CheckCfg { for val in values { if let Some(LitKind::Str(s, _)) = - val.literal().map(|lit| &lit.kind) + val.lit().map(|lit| &lit.kind) { ident_values.insert(s.to_string()); } else { diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index 293f1c5c471..a6c7e819482 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -462,8 +462,8 @@ impl LateLintPass<'_> for BadOptAccess { let Some(attr) = cx.tcx.get_attr(field.did, sym::rustc_lint_opt_deny_field_access) && let Some(items) = attr.meta_item_list() && let Some(item) = items.first() && - let Some(literal) = item.literal() && - let ast::LitKind::Str(val, _) = literal.kind + let Some(lit) = item.lit() && + let ast::LitKind::Str(val, _) = lit.kind { cx.struct_span_lint(BAD_OPT_ACCESS, expr.span, val.as_str(), |lint| lint diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index bf30a403d9b..297433d37c4 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1191,8 +1191,9 @@ impl<'tcx> TyCtxt<'tcx> { debug!("layout_scalar_valid_range: attr={:?}", attr); if let Some( &[ - ast::NestedMetaItem::Literal(ast::Lit { - kind: ast::LitKind::Int(a, _), .. + ast::NestedMetaItem::Lit(ast::MetaItemLit { + kind: ast::LitKind::Int(a, _), + .. }), ], ) = attr.meta_item_list().as_deref() diff --git a/compiler/rustc_parse/src/parser/attr.rs b/compiler/rustc_parse/src/parser/attr.rs index 0ed24fe849c..c7d239b647f 100644 --- a/compiler/rustc_parse/src/parser/attr.rs +++ b/compiler/rustc_parse/src/parser/attr.rs @@ -315,8 +315,9 @@ impl<'a> Parser<'a> { Ok(attrs) } - pub(crate) fn parse_unsuffixed_lit(&mut self) -> PResult<'a, ast::Lit> { - let lit = self.parse_ast_lit()?; + // Note: must be unsuffixed. + pub(crate) fn parse_unsuffixed_meta_item_lit(&mut self) -> PResult<'a, ast::MetaItemLit> { + let lit = self.parse_meta_item_lit()?; debug!("checking if {:?} is unsuffixed", lit); if !lit.kind.is_unsuffixed() { @@ -391,7 +392,7 @@ impl<'a> Parser<'a> { pub(crate) fn parse_meta_item_kind(&mut self) -> PResult<'a, ast::MetaItemKind> { Ok(if self.eat(&token::Eq) { - ast::MetaItemKind::NameValue(self.parse_unsuffixed_lit()?) + ast::MetaItemKind::NameValue(self.parse_unsuffixed_meta_item_lit()?) } else if self.check(&token::OpenDelim(Delimiter::Parenthesis)) { // Matches `meta_seq = ( COMMASEP(meta_item_inner) )`. let (list, _) = self.parse_paren_comma_seq(|p| p.parse_meta_item_inner())?; @@ -403,8 +404,8 @@ impl<'a> Parser<'a> { /// Matches `meta_item_inner : (meta_item | UNSUFFIXED_LIT) ;`. fn parse_meta_item_inner(&mut self) -> PResult<'a, ast::NestedMetaItem> { - match self.parse_unsuffixed_lit() { - Ok(lit) => return Ok(ast::NestedMetaItem::Literal(lit)), + match self.parse_unsuffixed_meta_item_lit() { + Ok(lit) => return Ok(ast::NestedMetaItem::Lit(lit)), Err(err) => err.cancel(), } diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 9f2267efb82..e0443a697b5 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -33,10 +33,10 @@ use rustc_ast::util::case::Case; use rustc_ast::util::classify; use rustc_ast::util::parser::{prec_let_scrutinee_needs_par, AssocOp, Fixity}; use rustc_ast::visit::Visitor; -use rustc_ast::{self as ast, AttrStyle, AttrVec, CaptureBy, ExprField, Lit, UnOp, DUMMY_NODE_ID}; +use rustc_ast::{self as ast, AttrStyle, AttrVec, CaptureBy, ExprField, UnOp, DUMMY_NODE_ID}; use rustc_ast::{AnonConst, BinOp, BinOpKind, FnDecl, FnRetTy, MacCall, Param, Ty, TyKind}; use rustc_ast::{Arm, Async, BlockCheckMode, Expr, ExprKind, Label, Movability, RangeLimits}; -use rustc_ast::{ClosureBinder, StmtKind}; +use rustc_ast::{ClosureBinder, MetaItemLit, StmtKind}; use rustc_ast_pretty::pprust; use rustc_errors::{ Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic, PResult, @@ -1631,7 +1631,7 @@ impl<'a> Parser<'a> { &self, lifetime: Ident, err: impl FnOnce(&Self) -> DiagnosticBuilder<'a, ErrorGuaranteed>, - ) -> ast::Lit { + ) -> ast::MetaItemLit { if let Some(mut diag) = self.sess.span_diagnostic.steal_diagnostic(lifetime.span, StashKey::LifetimeIsChar) { @@ -1653,7 +1653,7 @@ impl<'a> Parser<'a> { .emit(); } let name = lifetime.without_first_quote().name; - ast::Lit { + ast::MetaItemLit { token_lit: token::Lit::new(token::LitKind::Char, name, None), kind: ast::LitKind::Char(name.as_str().chars().next().unwrap_or('_')), span: lifetime.span, @@ -1768,8 +1768,8 @@ impl<'a> Parser<'a> { /// Returns a string literal if the next token is a string literal. /// In case of error returns `Some(lit)` if the next token is a literal with a wrong kind, /// and returns `None` if the next token is not literal at all. - pub fn parse_str_lit(&mut self) -> Result<ast::StrLit, Option<Lit>> { - match self.parse_opt_ast_lit() { + pub fn parse_str_lit(&mut self) -> Result<ast::StrLit, Option<MetaItemLit>> { + match self.parse_opt_meta_item_lit() { Some(lit) => match lit.kind { ast::LitKind::Str(symbol_unescaped, style) => Ok(ast::StrLit { style, @@ -1784,7 +1784,7 @@ impl<'a> Parser<'a> { } } - fn handle_missing_lit(&mut self) -> PResult<'a, Lit> { + fn handle_missing_lit(&mut self) -> PResult<'a, MetaItemLit> { if let token::Interpolated(inner) = &self.token.kind { let expr = match inner.as_ref() { token::NtExpr(expr) => Some(expr), @@ -1820,8 +1820,8 @@ impl<'a> Parser<'a> { .or_else(|()| self.handle_missing_lit().map(|lit| (lit.token_lit, lit.span))) } - pub(super) fn parse_ast_lit(&mut self) -> PResult<'a, Lit> { - self.parse_opt_ast_lit().ok_or(()).or_else(|()| self.handle_missing_lit()) + pub(super) fn parse_meta_item_lit(&mut self) -> PResult<'a, MetaItemLit> { + self.parse_opt_meta_item_lit().ok_or(()).or_else(|()| self.handle_missing_lit()) } fn recover_after_dot(&mut self) -> Option<Token> { @@ -1867,12 +1867,12 @@ impl<'a> Parser<'a> { /// Matches `lit = true | false | token_lit`. /// Returns `None` if the next token is not a literal. - pub(super) fn parse_opt_ast_lit(&mut self) -> Option<Lit> { + 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(token_lit) => { - match Lit::from_token_lit(token_lit, token.span) { + match MetaItemLit::from_token_lit(token_lit, token.span) { Ok(lit) => { self.bump(); Some(lit) @@ -1889,7 +1889,10 @@ impl<'a> Parser<'a> { 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, symbol, lit.suffix); - Some(Lit::from_token_lit(lit, span).unwrap_or_else(|_| unreachable!())) + Some( + MetaItemLit::from_token_lit(lit, span) + .unwrap_or_else(|_| unreachable!()), + ) } } } diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index 1b56cd72db0..ff1ddfd97df 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -358,7 +358,7 @@ impl<'a> Parser<'a> { /// report error for `let 1x = 123` pub fn report_invalid_identifier_error(&mut self) -> PResult<'a, ()> { if let token::Literal(lit) = self.token.uninterpolate().kind && - rustc_ast::Lit::from_token(&self.token).is_none() && + rustc_ast::MetaItemLit::from_token(&self.token).is_none() && (lit.kind == token::LitKind::Integer || lit.kind == token::LitKind::Float) && self.look_ahead(1, |t| matches!(t.kind, token::Eq) || matches!(t.kind, token::Colon ) ) { return Err(self.sess.create_err(InvalidIdentiferStartsWithNumber { span: self.token.span })); diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index e2f95d74a3d..59e564114e5 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -51,7 +51,7 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta } AttrArgs::Eq(_, AttrArgsEq::Ast(expr)) => { if let ast::ExprKind::Lit(token_lit) = expr.kind - && let Ok(lit) = ast::Lit::from_token_lit(token_lit, expr.span) + && let Ok(lit) = ast::MetaItemLit::from_token_lit(token_lit, expr.span) { if token_lit.suffix.is_some() { let mut err = sess.span_diagnostic.struct_span_err( diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index acb9bd8e78a..2e2874dbccb 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -8,7 +8,7 @@ use crate::errors::{ self, AttrApplication, DebugVisualizerUnreadable, InvalidAttrAtCrateLevel, ObjectLifetimeErr, OnlyHasEffectOn, TransparentIncompatible, UnrecognizedReprHint, }; -use rustc_ast::{ast, AttrStyle, Attribute, Lit, LitKind, MetaItemKind, NestedMetaItem}; +use rustc_ast::{ast, AttrStyle, Attribute, LitKind, MetaItemKind, MetaItemLit, NestedMetaItem}; use rustc_data_structures::fx::FxHashMap; use rustc_errors::{fluent, Applicability, MultiSpan}; use rustc_expand::base::resolve_path; @@ -715,7 +715,7 @@ impl CheckAttrVisitor<'_> { if let Some(values) = meta.meta_item_list() { let mut errors = 0; for v in values { - match v.literal() { + match v.lit() { Some(l) => match l.kind { LitKind::Str(s, _) => { if !self.check_doc_alias_value(v, s, hir_id, target, true, aliases) { @@ -1355,7 +1355,7 @@ impl CheckAttrVisitor<'_> { return false; }; - if matches!(&list[..], &[NestedMetaItem::Literal(Lit { kind: LitKind::Int(..), .. })]) { + if matches!(&list[..], &[NestedMetaItem::Lit(MetaItemLit { kind: LitKind::Int(..), .. })]) { true } else { self.tcx.sess.emit_err(errors::RustcLayoutScalarValidRangeArg { attr_span: attr.span }); @@ -1418,7 +1418,7 @@ impl CheckAttrVisitor<'_> { let arg_count = decl.inputs.len() as u128 + generics.params.len() as u128; let mut invalid_args = vec![]; for meta in list { - if let Some(LitKind::Int(val, _)) = meta.literal().map(|lit| &lit.kind) { + if let Some(LitKind::Int(val, _)) = meta.lit().map(|lit| &lit.kind) { if *val >= arg_count { let span = meta.span(); self.tcx.sess.emit_err(errors::RustcLegacyConstGenericsIndexExceed { diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 82214d4c3c4..4ef89cfb255 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -1989,7 +1989,7 @@ impl<'a> Resolver<'a> { .find(|a| a.has_name(sym::rustc_legacy_const_generics))?; let mut ret = Vec::new(); for meta in attr.meta_item_list()? { - match meta.literal()?.kind { + match meta.lit()?.kind { LitKind::Int(a, _) => ret.push(a as usize), _ => panic!("invalid arg index"), } |