diff options
| -rw-r--r-- | compiler/rustc_hir/src/hir.rs | 49 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/diagnostics.rs | 6 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/late.rs | 12 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/late/diagnostics.rs | 4 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/lib.rs | 47 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/macros.rs | 11 | ||||
| -rw-r--r-- | src/tools/clippy/clippy_lints/src/misc_early.rs | 8 | ||||
| -rw-r--r-- | src/tools/clippy/clippy_lints/src/utils/constants.rs | 13 | ||||
| -rw-r--r-- | src/tools/clippy/clippy_lints/src/utils/mod.rs | 1 |
9 files changed, 71 insertions, 80 deletions
diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 67a15418ea4..49d9e3b60b4 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -2058,6 +2058,28 @@ pub enum PrimTy { } impl PrimTy { + /// All of the primitive types + pub const ALL: [Self; 17] = [ + // any changes here should also be reflected in `PrimTy::from_name` + Self::Int(IntTy::I8), + Self::Int(IntTy::I16), + Self::Int(IntTy::I32), + Self::Int(IntTy::I64), + Self::Int(IntTy::I128), + Self::Int(IntTy::Isize), + Self::Uint(UintTy::U8), + Self::Uint(UintTy::U16), + Self::Uint(UintTy::U32), + Self::Uint(UintTy::U64), + Self::Uint(UintTy::U128), + Self::Uint(UintTy::Usize), + Self::Float(FloatTy::F32), + Self::Float(FloatTy::F64), + Self::Bool, + Self::Char, + Self::Str, + ]; + pub fn name_str(self) -> &'static str { match self { PrimTy::Int(i) => i.name_str(), @@ -2079,6 +2101,33 @@ impl PrimTy { PrimTy::Char => sym::char, } } + + /// Returns the matching `PrimTy` for a `Symbol` such as "str" or "i32". + /// Returns `None` if no matching type is found. + pub fn from_name(name: Symbol) -> Option<Self> { + let ty = match name { + // any changes here should also be reflected in `PrimTy::ALL` + sym::i8 => Self::Int(IntTy::I8), + sym::i16 => Self::Int(IntTy::I16), + sym::i32 => Self::Int(IntTy::I32), + sym::i64 => Self::Int(IntTy::I64), + sym::i128 => Self::Int(IntTy::I128), + sym::isize => Self::Int(IntTy::Isize), + sym::u8 => Self::Uint(UintTy::U8), + sym::u16 => Self::Uint(UintTy::U16), + sym::u32 => Self::Uint(UintTy::U32), + sym::u64 => Self::Uint(UintTy::U64), + sym::u128 => Self::Uint(UintTy::U128), + sym::usize => Self::Uint(UintTy::Usize), + sym::f32 => Self::Float(FloatTy::F32), + sym::f64 => Self::Float(FloatTy::F64), + sym::bool => Self::Bool, + sym::char => Self::Char, + sym::str => Self::Str, + _ => return None, + }; + Some(ty) + } } #[derive(Debug, HashStable_Generic)] diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 3b02f74f2ca..7493fd68505 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -9,6 +9,7 @@ use rustc_feature::BUILTIN_ATTRIBUTES; use rustc_hir::def::Namespace::{self, *}; use rustc_hir::def::{self, CtorKind, CtorOf, DefKind, NonMacroAttrKind}; use rustc_hir::def_id::{DefId, CRATE_DEF_INDEX, LOCAL_CRATE}; +use rustc_hir::PrimTy; use rustc_middle::bug; use rustc_middle::ty::{self, DefIdTree}; use rustc_session::Session; @@ -718,10 +719,9 @@ impl<'a> Resolver<'a> { } } Scope::BuiltinTypes => { - let primitive_types = &this.primitive_type_table.primitive_types; - suggestions.extend(primitive_types.iter().flat_map(|(name, prim_ty)| { + suggestions.extend(PrimTy::ALL.iter().filter_map(|prim_ty| { let res = Res::PrimTy(*prim_ty); - filter_fn(res).then_some(TypoSuggestion::from_res(*name, res)) + filter_fn(res).then_some(TypoSuggestion::from_res(prim_ty.name(), res)) })) } } diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 9b5b793363b..cca40a793dd 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -20,7 +20,7 @@ use rustc_errors::DiagnosticId; use rustc_hir::def::Namespace::{self, *}; use rustc_hir::def::{self, CtorKind, DefKind, PartialRes, PerNS}; use rustc_hir::def_id::{DefId, CRATE_DEF_INDEX}; -use rustc_hir::TraitCandidate; +use rustc_hir::{PrimTy, TraitCandidate}; use rustc_middle::{bug, span_bug}; use rustc_session::lint; use rustc_span::symbol::{kw, sym, Ident, Symbol}; @@ -1927,7 +1927,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { self.r.trait_map.insert(id, traits); } - if self.r.primitive_type_table.primitive_types.contains_key(&path[0].ident.name) { + if PrimTy::from_name(path[0].ident.name).is_some() { let mut std_path = Vec::with_capacity(1 + path.len()); std_path.push(Segment::from_ident(Ident::with_dummy_span(sym::std))); @@ -2121,13 +2121,9 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { // The same fallback is used when `a` resolves to nothing. PathResult::Module(ModuleOrUniformRoot::Module(_)) | PathResult::Failed { .. } if (ns == TypeNS || path.len() > 1) - && self - .r - .primitive_type_table - .primitive_types - .contains_key(&path[0].ident.name) => + && PrimTy::from_name(path[0].ident.name).is_some() => { - let prim = self.r.primitive_type_table.primitive_types[&path[0].ident.name]; + let prim = PrimTy::from_name(path[0].ident.name).unwrap(); PartialRes::with_unresolved_segments(Res::PrimTy(prim), path.len() - 1) } PathResult::Module(ModuleOrUniformRoot::Module(module)) => { diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 927535b72bd..d2a693a5688 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -1212,8 +1212,8 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> { // Add primitive types to the mix if filter_fn(Res::PrimTy(PrimTy::Bool)) { names.extend( - self.r.primitive_type_table.primitive_types.iter().map(|(name, prim_ty)| { - TypoSuggestion::from_res(*name, Res::PrimTy(*prim_ty)) + PrimTy::ALL.iter().map(|prim_ty| { + TypoSuggestion::from_res(prim_ty.name(), Res::PrimTy(*prim_ty)) }), ) } diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index b19990e49b8..2be669a1726 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -25,7 +25,7 @@ use rustc_arena::{DroplessArena, TypedArena}; use rustc_ast::node_id::NodeMap; use rustc_ast::unwrap_or; use rustc_ast::visit::{self, Visitor}; -use rustc_ast::{self as ast, FloatTy, IntTy, NodeId, UintTy}; +use rustc_ast::{self as ast, NodeId}; use rustc_ast::{Crate, CRATE_NODE_ID}; use rustc_ast::{ItemKind, Path}; use rustc_ast_lowering::ResolverAstLowering; @@ -39,8 +39,7 @@ use rustc_hir::def::Namespace::*; use rustc_hir::def::{self, CtorOf, DefKind, NonMacroAttrKind, PartialRes}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, CRATE_DEF_INDEX}; use rustc_hir::definitions::{DefKey, DefPathData, Definitions}; -use rustc_hir::PrimTy::{self, Bool, Char, Float, Int, Str, Uint}; -use rustc_hir::TraitCandidate; +use rustc_hir::{PrimTy, TraitCandidate}; use rustc_index::vec::IndexVec; use rustc_metadata::creader::{CStore, CrateLoader}; use rustc_middle::hir::exports::ExportMap; @@ -834,39 +833,6 @@ impl<'a> NameBinding<'a> { } } -/// Interns the names of the primitive types. -/// -/// All other types are defined somewhere and possibly imported, but the primitive ones need -/// special handling, since they have no place of origin. -struct PrimitiveTypeTable { - primitive_types: FxHashMap<Symbol, PrimTy>, -} - -impl PrimitiveTypeTable { - fn new() -> PrimitiveTypeTable { - let mut table = FxHashMap::default(); - - table.insert(sym::bool, Bool); - table.insert(sym::char, Char); - table.insert(sym::f32, Float(FloatTy::F32)); - table.insert(sym::f64, Float(FloatTy::F64)); - table.insert(sym::isize, Int(IntTy::Isize)); - table.insert(sym::i8, Int(IntTy::I8)); - table.insert(sym::i16, Int(IntTy::I16)); - table.insert(sym::i32, Int(IntTy::I32)); - table.insert(sym::i64, Int(IntTy::I64)); - table.insert(sym::i128, Int(IntTy::I128)); - table.insert(sym::str, Str); - table.insert(sym::usize, Uint(UintTy::Usize)); - table.insert(sym::u8, Uint(UintTy::U8)); - table.insert(sym::u16, Uint(UintTy::U16)); - table.insert(sym::u32, Uint(UintTy::U32)); - table.insert(sym::u64, Uint(UintTy::U64)); - table.insert(sym::u128, Uint(UintTy::U128)); - Self { primitive_types: table } - } -} - #[derive(Debug, Default, Clone)] pub struct ExternPreludeEntry<'a> { extern_crate_item: Option<&'a NameBinding<'a>>, @@ -912,9 +878,6 @@ pub struct Resolver<'a> { /// "self-confirming" import resolutions during import validation. unusable_binding: Option<&'a NameBinding<'a>>, - /// The idents for the primitive types. - primitive_type_table: PrimitiveTypeTable, - /// Resolutions for nodes that have a single resolution. partial_res_map: NodeMap<PartialRes>, /// Resolutions for import nodes, which have multiple resolutions in different namespaces. @@ -1284,8 +1247,6 @@ impl<'a> Resolver<'a> { last_import_segment: false, unusable_binding: None, - primitive_type_table: PrimitiveTypeTable::new(), - partial_res_map: Default::default(), import_res_map: Default::default(), label_res_map: Default::default(), @@ -1994,9 +1955,9 @@ impl<'a> Resolver<'a> { } if ns == TypeNS { - if let Some(prim_ty) = self.primitive_type_table.primitive_types.get(&ident.name) { + if let Some(prim_ty) = PrimTy::from_name(ident.name) { let binding = - (Res::PrimTy(*prim_ty), ty::Visibility::Public, DUMMY_SP, ExpnId::root()) + (Res::PrimTy(prim_ty), ty::Visibility::Public, DUMMY_SP, ExpnId::root()) .to_name_binding(self.arenas); return Some(LexicalScopeBinding::Item(binding)); } diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index d0adee2429d..d76db7c645a 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -21,6 +21,7 @@ use rustc_expand::expand::{AstFragment, Invocation, InvocationKind}; use rustc_feature::is_builtin_attr_name; use rustc_hir::def::{self, DefKind, NonMacroAttrKind}; use rustc_hir::def_id; +use rustc_hir::PrimTy; use rustc_middle::middle::stability; use rustc_middle::ty; use rustc_session::lint::builtin::{SOFT_UNSTABLE, UNUSED_MACROS}; @@ -796,12 +797,10 @@ impl<'a> Resolver<'a> { } result } - Scope::BuiltinTypes => { - match this.primitive_type_table.primitive_types.get(&ident.name).cloned() { - Some(prim_ty) => ok(Res::PrimTy(prim_ty), DUMMY_SP, this.arenas), - None => Err(Determinacy::Determined), - } - } + Scope::BuiltinTypes => match PrimTy::from_name(ident.name) { + Some(prim_ty) => ok(Res::PrimTy(prim_ty), DUMMY_SP, this.arenas), + None => Err(Determinacy::Determined), + }, }; match result { diff --git a/src/tools/clippy/clippy_lints/src/misc_early.rs b/src/tools/clippy/clippy_lints/src/misc_early.rs index 5bc45c87874..84a0df92f5b 100644 --- a/src/tools/clippy/clippy_lints/src/misc_early.rs +++ b/src/tools/clippy/clippy_lints/src/misc_early.rs @@ -1,4 +1,4 @@ -use crate::utils::{constants, snippet_opt, span_lint, span_lint_and_help, span_lint_and_sugg, span_lint_and_then}; +use crate::utils::{snippet_opt, span_lint, span_lint_and_help, span_lint_and_sugg, span_lint_and_then}; use rustc_ast::ast::{ BindingMode, Expr, ExprKind, GenericParamKind, Generics, Lit, LitFloatType, LitIntType, LitKind, Mutability, NodeId, Pat, PatKind, UnOp, @@ -6,6 +6,7 @@ use rustc_ast::ast::{ use rustc_ast::visit::FnKind; use rustc_data_structures::fx::FxHashMap; use rustc_errors::Applicability; +use rustc_hir::PrimTy; use rustc_lint::{EarlyContext, EarlyLintPass, LintContext}; use rustc_middle::lint::in_external_macro; use rustc_session::{declare_lint_pass, declare_tool_lint}; @@ -264,13 +265,12 @@ impl EarlyLintPass for MiscEarlyLints { fn check_generics(&mut self, cx: &EarlyContext<'_>, gen: &Generics) { for param in &gen.params { if let GenericParamKind::Type { .. } = param.kind { - let name = param.ident.as_str(); - if constants::BUILTIN_TYPES.contains(&&*name) { + if let Some(prim_ty) = PrimTy::from_name(param.ident.name) { span_lint( cx, BUILTIN_TYPE_SHADOW, param.ident.span, - &format!("this generic shadows the built-in type `{}`", name), + &format!("this generic shadows the built-in type `{}`", prim_ty.name()), ); } } diff --git a/src/tools/clippy/clippy_lints/src/utils/constants.rs b/src/tools/clippy/clippy_lints/src/utils/constants.rs deleted file mode 100644 index 522932f054d..00000000000 --- a/src/tools/clippy/clippy_lints/src/utils/constants.rs +++ /dev/null @@ -1,13 +0,0 @@ -//! This module contains some useful constants. - -#![deny(clippy::missing_docs_in_private_items)] - -/// List of the built-in types names. -/// -/// See also [the reference][reference-types] for a list of such types. -/// -/// [reference-types]: https://doc.rust-lang.org/reference/types.html -pub const BUILTIN_TYPES: &[&str] = &[ - "i8", "u8", "i16", "u16", "i32", "u32", "i64", "u64", "i128", "u128", "isize", "usize", "f32", "f64", "bool", - "str", "char", -]; diff --git a/src/tools/clippy/clippy_lints/src/utils/mod.rs b/src/tools/clippy/clippy_lints/src/utils/mod.rs index ef45f9fdcd5..de1538233a8 100644 --- a/src/tools/clippy/clippy_lints/src/utils/mod.rs +++ b/src/tools/clippy/clippy_lints/src/utils/mod.rs @@ -8,7 +8,6 @@ pub mod author; pub mod camel_case; pub mod comparisons; pub mod conf; -pub mod constants; mod diagnostics; pub mod eager_or_lazy; pub mod higher; |