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Rollup merge of #109723 - oli-obk:ast_refactor, r=Nilstrieb

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Pull some tuple variant fields out into their own struct

This is groundwork for adding more fields to those new structs, but I believe the change to be useful on its own.

r? `@Nilstrieb` but feel free to reroll for `compiler`
This commit is contained in:
Michael Goulet 2023-04-04 09:27:43 -07:00 committed by GitHub
commit ec22850c2c
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 202 additions and 150 deletions
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38
compiler/rustc_ast/src/ast.rs
View File

@ -2890,6 +2890,20 @@ pub struct Fn {
pub body: Option<P<Block>>,
}
#[derive(Clone, Encodable, Decodable, Debug)]
pub struct StaticItem {
pub ty: P<Ty>,
pub mutability: Mutability,
pub expr: Option<P<Expr>>,
}
#[derive(Clone, Encodable, Decodable, Debug)]
pub struct ConstItem {
pub defaultness: Defaultness,
pub ty: P<Ty>,
pub expr: Option<P<Expr>>,
}
#[derive(Clone, Encodable, Decodable, Debug)]
pub enum ItemKind {
/// An `extern crate` item, with the optional *original* crate name if the crate was renamed.
@ -2903,11 +2917,11 @@ pub enum ItemKind {
/// A static item (`static`).
///
/// E.g., `static FOO: i32 = 42;` or `static FOO: &'static str = "bar";`.
Static(P<Ty>, Mutability, Option<P<Expr>>),
Static(Box<StaticItem>),
/// A constant item (`const`).
///
/// E.g., `const FOO: i32 = 42;`.
Const(Defaultness, P<Ty>, Option<P<Expr>>),
Const(Box<ConstItem>),
/// A function declaration (`fn`).
///
/// E.g., `fn foo(bar: usize) -> usize { .. }`.
@ -3023,7 +3037,7 @@ pub type AssocItem = Item<AssocItemKind>;
pub enum AssocItemKind {
/// An associated constant, `const $ident: $ty $def?;` where `def ::= "=" $expr? ;`.
/// If `def` is parsed, then the constant is provided, and otherwise required.
Const(Defaultness, P<Ty>, Option<P<Expr>>),
Const(Box<ConstItem>),
/// An associated function.
Fn(Box<Fn>),
/// An associated type.
@ -3035,7 +3049,7 @@ pub enum AssocItemKind {
impl AssocItemKind {
pub fn defaultness(&self) -> Defaultness {
match *self {
Self::Const(defaultness, ..)
Self::Const(box ConstItem { defaultness, .. })
| Self::Fn(box Fn { defaultness, .. })
| Self::Type(box TyAlias { defaultness, .. }) => defaultness,
Self::MacCall(..) => Defaultness::Final,
@ -3046,7 +3060,7 @@ impl AssocItemKind {
impl From<AssocItemKind> for ItemKind {
fn from(assoc_item_kind: AssocItemKind) -> ItemKind {
match assoc_item_kind {
AssocItemKind::Const(a, b, c) => ItemKind::Const(a, b, c),
AssocItemKind::Const(item) => ItemKind::Const(item),
AssocItemKind::Fn(fn_kind) => ItemKind::Fn(fn_kind),
AssocItemKind::Type(ty_alias_kind) => ItemKind::TyAlias(ty_alias_kind),
AssocItemKind::MacCall(a) => ItemKind::MacCall(a),
@ -3059,7 +3073,7 @@ impl TryFrom<ItemKind> for AssocItemKind {
fn try_from(item_kind: ItemKind) -> Result<AssocItemKind, ItemKind> {
Ok(match item_kind {
ItemKind::Const(a, b, c) => AssocItemKind::Const(a, b, c),
ItemKind::Const(item) => AssocItemKind::Const(item),
ItemKind::Fn(fn_kind) => AssocItemKind::Fn(fn_kind),
ItemKind::TyAlias(ty_kind) => AssocItemKind::Type(ty_kind),
ItemKind::MacCall(a) => AssocItemKind::MacCall(a),
@ -3084,7 +3098,9 @@ pub enum ForeignItemKind {
impl From<ForeignItemKind> for ItemKind {
fn from(foreign_item_kind: ForeignItemKind) -> ItemKind {
match foreign_item_kind {
ForeignItemKind::Static(a, b, c) => ItemKind::Static(a, b, c),
ForeignItemKind::Static(a, b, c) => {
ItemKind::Static(StaticItem { ty: a, mutability: b, expr: c }.into())
}
ForeignItemKind::Fn(fn_kind) => ItemKind::Fn(fn_kind),
ForeignItemKind::TyAlias(ty_alias_kind) => ItemKind::TyAlias(ty_alias_kind),
ForeignItemKind::MacCall(a) => ItemKind::MacCall(a),
@ -3097,7 +3113,9 @@ impl TryFrom<ItemKind> for ForeignItemKind {
fn try_from(item_kind: ItemKind) -> Result<ForeignItemKind, ItemKind> {
Ok(match item_kind {
ItemKind::Static(a, b, c) => ForeignItemKind::Static(a, b, c),
ItemKind::Static(box StaticItem { ty: a, mutability: b, expr: c }) => {
ForeignItemKind::Static(a, b, c)
}
ItemKind::Fn(fn_kind) => ForeignItemKind::Fn(fn_kind),
ItemKind::TyAlias(ty_alias_kind) => ForeignItemKind::TyAlias(ty_alias_kind),
ItemKind::MacCall(a) => ForeignItemKind::MacCall(a),
@ -3114,8 +3132,8 @@ mod size_asserts {
use super::*;
use rustc_data_structures::static_assert_size;
// tidy-alphabetical-start
static_assert_size!(AssocItem, 104);
static_assert_size!(AssocItemKind, 32);
static_assert_size!(AssocItem, 88);
static_assert_size!(AssocItemKind, 16);
static_assert_size!(Attribute, 32);
static_assert_size!(Block, 32);
static_assert_size!(Expr, 72);

25
compiler/rustc_ast/src/mut_visit.rs
View File

@ -7,10 +7,10 @@
//! a `MutVisitor` renaming item names in a module will miss all of those
//! that are created by the expansion of a macro.
use crate::ast::*;
use crate::ptr::P;
use crate::token::{self, Token};
use crate::tokenstream::*;
use crate::{ast::*, StaticItem};
use rustc_data_structures::flat_map_in_place::FlatMapInPlace;
use rustc_data_structures::sync::Lrc;
@ -1030,14 +1030,12 @@ pub fn noop_visit_item_kind<T: MutVisitor>(kind: &mut ItemKind, vis: &mut T) {
match kind {
ItemKind::ExternCrate(_orig_name) => {}
ItemKind::Use(use_tree) => vis.visit_use_tree(use_tree),
ItemKind::Static(ty, _, expr) => {
ItemKind::Static(box StaticItem { ty, mutability: _, expr }) => {
vis.visit_ty(ty);
visit_opt(expr, |expr| vis.visit_expr(expr));
}
ItemKind::Const(defaultness, ty, expr) => {
visit_defaultness(defaultness, vis);
vis.visit_ty(ty);
visit_opt(expr, |expr| vis.visit_expr(expr));
ItemKind::Const(item) => {
visit_const_item(item, vis);
}
ItemKind::Fn(box Fn { defaultness, generics, sig, body }) => {
visit_defaultness(defaultness, vis);
@ -1120,10 +1118,8 @@ pub fn noop_flat_map_assoc_item<T: MutVisitor>(
visitor.visit_vis(vis);
visit_attrs(attrs, visitor);
match kind {
AssocItemKind::Const(defaultness, ty, expr) => {
visit_defaultness(defaultness, visitor);
visitor.visit_ty(ty);
visit_opt(expr, |expr| visitor.visit_expr(expr));
AssocItemKind::Const(item) => {
visit_const_item(item, visitor);
}
AssocItemKind::Fn(box Fn { defaultness, generics, sig, body }) => {
visit_defaultness(defaultness, visitor);
@ -1153,6 +1149,15 @@ pub fn noop_flat_map_assoc_item<T: MutVisitor>(
smallvec![item]
}
fn visit_const_item<T: MutVisitor>(
ConstItem { defaultness, ty, expr }: &mut ConstItem,
visitor: &mut T,
) {
visit_defaultness(defaultness, visitor);
visitor.visit_ty(ty);
visit_opt(expr, |expr| visitor.visit_expr(expr));
}
pub fn noop_visit_fn_header<T: MutVisitor>(header: &mut FnHeader, vis: &mut T) {
let FnHeader { unsafety, asyncness, constness, ext: _ } = header;
visit_constness(constness, vis);

9
compiler/rustc_ast/src/visit.rs
View File

@ -13,7 +13,7 @@
//! instance, a walker looking for item names in a module will miss all of
//! those that are created by the expansion of a macro.
use crate::ast::*;
use crate::{ast::*, StaticItem};
use rustc_span::symbol::Ident;
use rustc_span::Span;
@ -305,8 +305,9 @@ pub fn walk_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a Item) {
match &item.kind {
ItemKind::ExternCrate(_) => {}
ItemKind::Use(use_tree) => visitor.visit_use_tree(use_tree, item.id, false),
ItemKind::Static(typ, _, expr) | ItemKind::Const(_, typ, expr) => {
visitor.visit_ty(typ);
ItemKind::Static(box StaticItem { ty, mutability: _, expr })
| ItemKind::Const(box ConstItem { ty, expr, .. }) => {
visitor.visit_ty(ty);
walk_list!(visitor, visit_expr, expr);
}
ItemKind::Fn(box Fn { defaultness: _, generics, sig, body }) => {
@ -674,7 +675,7 @@ pub fn walk_assoc_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a AssocItem,
visitor.visit_ident(ident);
walk_list!(visitor, visit_attribute, attrs);
match kind {
AssocItemKind::Const(_, ty, expr) => {
AssocItemKind::Const(box ConstItem { ty, expr, .. }) => {
visitor.visit_ty(ty);
walk_list!(visitor, visit_expr, expr);
}

12
compiler/rustc_ast_lowering/src/item.rs
View File

@ -229,12 +229,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
self.lower_use_tree(use_tree, &prefix, id, vis_span, ident, attrs)
}
ItemKind::Static(t, m, e) => {
ItemKind::Static(box ast::StaticItem { ty: t, mutability: m, expr: e }) => {
let (ty, body_id) = self.lower_const_item(t, span, e.as_deref());
hir::ItemKind::Static(ty, *m, body_id)
}
ItemKind::Const(_, t, e) => {
let (ty, body_id) = self.lower_const_item(t, span, e.as_deref());
ItemKind::Const(box ast::ConstItem { ty, expr, .. }) => {
let (ty, body_id) = self.lower_const_item(ty, span, expr.as_deref());
hir::ItemKind::Const(ty, body_id)
}
ItemKind::Fn(box Fn {
@ -708,10 +708,10 @@ impl<'hir> LoweringContext<'_, 'hir> {
let trait_item_def_id = hir_id.expect_owner();
let (generics, kind, has_default) = match &i.kind {
AssocItemKind::Const(_, ty, default) => {
AssocItemKind::Const(box ConstItem { ty, expr, .. }) => {
let ty =
self.lower_ty(ty, &ImplTraitContext::Disallowed(ImplTraitPosition::ConstTy));
let body = default.as_ref().map(|x| self.lower_const_body(i.span, Some(x)));
let body = expr.as_ref().map(|x| self.lower_const_body(i.span, Some(x)));
(hir::Generics::empty(), hir::TraitItemKind::Const(ty, body), body.is_some())
}
AssocItemKind::Fn(box Fn { sig, generics, body: None, .. }) => {
@ -809,7 +809,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
self.lower_attrs(hir_id, &i.attrs);
let (generics, kind) = match &i.kind {
AssocItemKind::Const(_, ty, expr) => {
AssocItemKind::Const(box ConstItem { ty, expr, .. }) => {
let ty =
self.lower_ty(ty, &ImplTraitContext::Disallowed(ImplTraitPosition::ConstTy));
(

20
compiler/rustc_ast_passes/src/ast_validation.rs
View File

@ -9,8 +9,8 @@
use itertools::{Either, Itertools};
use rustc_ast::ptr::P;
use rustc_ast::visit::{self, AssocCtxt, BoundKind, FnCtxt, FnKind, Visitor};
use rustc_ast::walk_list;
use rustc_ast::*;
use rustc_ast::{walk_list, StaticItem};
use rustc_ast_pretty::pprust::{self, State};
use rustc_data_structures::fx::FxIndexMap;
use rustc_macros::Subdiagnostic;
@ -983,14 +983,14 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
self.err_handler().emit_err(errors::FieldlessUnion { span: item.span });
}
}
ItemKind::Const(def, .., None) => {
self.check_defaultness(item.span, *def);
ItemKind::Const(box ConstItem { defaultness, expr: None, .. }) => {
self.check_defaultness(item.span, *defaultness);
self.session.emit_err(errors::ConstWithoutBody {
span: item.span,
replace_span: self.ending_semi_or_hi(item.span),
});
}
ItemKind::Static(.., None) => {
ItemKind::Static(box StaticItem { expr: None, .. }) => {
self.session.emit_err(errors::StaticWithoutBody {
span: item.span,
replace_span: self.ending_semi_or_hi(item.span),
@ -1259,13 +1259,11 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
if ctxt == AssocCtxt::Impl {
match &item.kind {
AssocItemKind::Const(_, _, body) => {
if body.is_none() {
self.session.emit_err(errors::AssocConstWithoutBody {
span: item.span,
replace_span: self.ending_semi_or_hi(item.span),
});
}
AssocItemKind::Const(box ConstItem { expr: None, .. }) => {
self.session.emit_err(errors::AssocConstWithoutBody {
span: item.span,
replace_span: self.ending_semi_or_hi(item.span),
});
}
AssocItemKind::Fn(box Fn { body, .. }) => {
if body.is_none() {

18
compiler/rustc_ast_pretty/src/pprust/state/item.rs
View File

@ -2,6 +2,7 @@ use crate::pp::Breaks::Inconsistent;
use crate::pprust::state::delimited::IterDelimited;
use crate::pprust::state::{AnnNode, PrintState, State, INDENT_UNIT};
use ast::StaticItem;
use rustc_ast as ast;
use rustc_ast::GenericBound;
use rustc_ast::ModKind;
@ -156,7 +157,7 @@ impl<'a> State<'a> {
self.print_use_tree(tree);
self.word(";");
}
ast::ItemKind::Static(ty, mutbl, body) => {
ast::ItemKind::Static(box StaticItem { ty, mutability: mutbl, expr: body }) => {
let def = ast::Defaultness::Final;
self.print_item_const(
item.ident,
@ -167,8 +168,15 @@ impl<'a> State<'a> {
def,
);
}
ast::ItemKind::Const(def, ty, body) => {
self.print_item_const(item.ident, None, ty, body.as_deref(), &item.vis, *def);
ast::ItemKind::Const(box ast::ConstItem { defaultness, ty, expr }) => {
self.print_item_const(
item.ident,
None,
ty,
expr.as_deref(),
&item.vis,
*defaultness,
);
}
ast::ItemKind::Fn(box ast::Fn { defaultness, sig, generics, body }) => {
self.print_fn_full(
@ -507,8 +515,8 @@ impl<'a> State<'a> {
ast::AssocItemKind::Fn(box ast::Fn { defaultness, sig, generics, body }) => {
self.print_fn_full(sig, ident, generics, vis, *defaultness, body.as_deref(), attrs);
}
ast::AssocItemKind::Const(def, ty, body) => {
self.print_item_const(ident, None, ty, body.as_deref(), vis, *def);
ast::AssocItemKind::Const(box ast::ConstItem { defaultness, ty, expr }) => {
self.print_item_const(ident, None, ty, expr.as_deref(), vis, *defaultness);
}
ast::AssocItemKind::Type(box ast::TyAlias {
defaultness,

4
compiler/rustc_builtin_macros/src/global_allocator.rs
View File

@ -25,12 +25,12 @@ pub fn expand(
// FIXME - if we get deref patterns, use them to reduce duplication here
let (item, is_stmt, ty_span) =
if let Annotatable::Item(item) = &item
&& let ItemKind::Static(ty, ..) = &item.kind
&& let ItemKind::Static(box ast::StaticItem { ty, ..}) = &item.kind
{
(item, false, ecx.with_def_site_ctxt(ty.span))
} else if let Annotatable::Stmt(stmt) = &item
&& let StmtKind::Item(item) = &stmt.kind
&& let ItemKind::Static(ty, ..) = &item.kind
&& let ItemKind::Static(box ast::StaticItem { ty, ..}) = &item.kind
{
(item, true, ecx.with_def_site_ctxt(ty.span))
} else {

48
compiler/rustc_builtin_macros/src/test.rs
View File

@ -254,25 +254,27 @@ pub fn expand_test_or_bench(
let location_info = get_location_info(cx, &item);
let mut test_const = cx.item(
sp,
Ident::new(item.ident.name, sp),
thin_vec![
// #[cfg(test)]
cx.attr_nested_word(sym::cfg, sym::test, attr_sp),
// #[rustc_test_marker = "test_case_sort_key"]
cx.attr_name_value_str(sym::rustc_test_marker, test_path_symbol, attr_sp),
],
// const $ident: test::TestDescAndFn =
ast::ItemKind::Const(
ast::Defaultness::Final,
cx.ty(sp, ast::TyKind::Path(None, test_path("TestDescAndFn"))),
// test::TestDescAndFn {
Some(
cx.expr_struct(
sp,
test_path("TestDescAndFn"),
thin_vec![
let mut test_const =
cx.item(
sp,
Ident::new(item.ident.name, sp),
thin_vec![
// #[cfg(test)]
cx.attr_nested_word(sym::cfg, sym::test, attr_sp),
// #[rustc_test_marker = "test_case_sort_key"]
cx.attr_name_value_str(sym::rustc_test_marker, test_path_symbol, attr_sp),
],
// const $ident: test::TestDescAndFn =
ast::ItemKind::Const(
ast::ConstItem {
defaultness: ast::Defaultness::Final,
ty: cx.ty(sp, ast::TyKind::Path(None, test_path("TestDescAndFn"))),
// test::TestDescAndFn {
expr: Some(
cx.expr_struct(
sp,
test_path("TestDescAndFn"),
thin_vec![
// desc: test::TestDesc {
field(
"desc",
@ -359,10 +361,12 @@ pub fn expand_test_or_bench(
// testfn: test::StaticTestFn(...) | test::StaticBenchFn(...)
field("testfn", test_fn), // }
],
), // }
), // }
),
}
.into(),
),
),
);
);
test_const = test_const.map(|mut tc| {
tc.vis.kind = ast::VisibilityKind::Public;
tc

18
compiler/rustc_expand/src/build.rs
View File

@ -620,10 +620,15 @@ impl<'a> ExtCtxt<'a> {
span: Span,
name: Ident,
ty: P<ast::Ty>,
mutbl: ast::Mutability,
mutability: ast::Mutability,
expr: P<ast::Expr>,
) -> P<ast::Item> {
self.item(span, name, AttrVec::new(), ast::ItemKind::Static(ty, mutbl, Some(expr)))
self.item(
span,
name,
AttrVec::new(),
ast::ItemKind::Static(ast::StaticItem { ty, mutability, expr: Some(expr) }.into()),
)
}
pub fn item_const(
@ -633,8 +638,13 @@ impl<'a> ExtCtxt<'a> {
ty: P<ast::Ty>,
expr: P<ast::Expr>,
) -> P<ast::Item> {
let def = ast::Defaultness::Final;
self.item(span, name, AttrVec::new(), ast::ItemKind::Const(def, ty, Some(expr)))
let defaultness = ast::Defaultness::Final;
self.item(
span,
name,
AttrVec::new(),
ast::ItemKind::Const(ast::ConstItem { defaultness, ty, expr: Some(expr) }.into()),
)
}
// Builds `#[name]`.

4
compiler/rustc_lint/src/unused.rs
View File

@ -805,7 +805,9 @@ trait UnusedDelimLint {
fn check_item(&mut self, cx: &EarlyContext<'_>, item: &ast::Item) {
use ast::ItemKind::*;
if let Const(.., Some(expr)) | Static(.., Some(expr)) = &item.kind {
if let Const(box ast::ConstItem { expr: Some(expr), .. })
| Static(box ast::StaticItem { expr: Some(expr), .. }) = &item.kind
{
self.check_unused_delims_expr(
cx,
expr,

17
compiler/rustc_parse/src/parser/item.rs
View File

@ -3,6 +3,7 @@ use crate::errors;
use super::diagnostics::{dummy_arg, ConsumeClosingDelim};
use super::ty::{AllowPlus, RecoverQPath, RecoverReturnSign};
use super::{AttrWrapper, FollowedByType, ForceCollect, Parser, PathStyle, TrailingToken};
use ast::StaticItem;
use rustc_ast::ast::*;
use rustc_ast::ptr::P;
use rustc_ast::token::{self, Delimiter, TokenKind};
@ -227,7 +228,7 @@ impl<'a> Parser<'a> {
self.bump(); // `static`
let m = self.parse_mutability();
let (ident, ty, expr) = self.parse_item_global(Some(m))?;
(ident, ItemKind::Static(ty, m, expr))
(ident, ItemKind::Static(Box::new(StaticItem { ty, mutability: m, expr })))
} else if let Const::Yes(const_span) = self.parse_constness(Case::Sensitive) {
// CONST ITEM
if self.token.is_keyword(kw::Impl) {
@ -236,7 +237,7 @@ impl<'a> Parser<'a> {
} else {
self.recover_const_mut(const_span);
let (ident, ty, expr) = self.parse_item_global(None)?;
(ident, ItemKind::Const(def_(), ty, expr))
(ident, ItemKind::Const(Box::new(ConstItem { defaultness: def_(), ty, expr })))
}
} else if self.check_keyword(kw::Trait) || self.check_auto_or_unsafe_trait_item() {
// TRAIT ITEM
@ -862,9 +863,13 @@ impl<'a> Parser<'a> {
let kind = match AssocItemKind::try_from(kind) {
Ok(kind) => kind,
Err(kind) => match kind {
ItemKind::Static(a, _, b) => {
ItemKind::Static(box StaticItem { ty, mutability: _, expr }) => {
self.sess.emit_err(errors::AssociatedStaticItemNotAllowed { span });
AssocItemKind::Const(Defaultness::Final, a, b)
AssocItemKind::Const(Box::new(ConstItem {
defaultness: Defaultness::Final,
ty,
expr,
}))
}
_ => return self.error_bad_item_kind(span, &kind, "`trait`s or `impl`s"),
},
@ -1114,12 +1119,12 @@ impl<'a> Parser<'a> {
let kind = match ForeignItemKind::try_from(kind) {
Ok(kind) => kind,
Err(kind) => match kind {
ItemKind::Const(_, a, b) => {
ItemKind::Const(box ConstItem { ty, expr, .. }) => {
self.sess.emit_err(errors::ExternItemCannotBeConst {
ident_span: ident.span,
const_span: span.with_hi(ident.span.lo()),
});
ForeignItemKind::Static(a, Mutability::Not, b)
ForeignItemKind::Static(ty, Mutability::Not, expr)
}
_ => return self.error_bad_item_kind(span, &kind, "`extern` blocks"),
},

4
compiler/rustc_resolve/src/build_reduced_graph.rs
View File

@ -688,8 +688,8 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> {
}
// These items live in the value namespace.
ItemKind::Static(_, mt, _) => {
let res = Res::Def(DefKind::Static(mt), def_id);
ItemKind::Static(box ast::StaticItem { mutability, .. }) => {
let res = Res::Def(DefKind::Static(mutability), def_id);
self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion));
}
ItemKind::Const(..) => {

11
compiler/rustc_resolve/src/late.rs
View File

@ -2346,7 +2346,8 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
});
}
ItemKind::Static(ref ty, _, ref expr) | ItemKind::Const(_, ref ty, ref expr) => {
ItemKind::Static(box ast::StaticItem { ref ty, ref expr, .. })
| ItemKind::Const(box ast::ConstItem { ref ty, ref expr, .. }) => {
self.with_static_rib(|this| {
this.with_lifetime_rib(LifetimeRibKind::Elided(LifetimeRes::Static), |this| {
this.visit_ty(ty);
@ -2624,11 +2625,11 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
for item in trait_items {
self.resolve_doc_links(&item.attrs, MaybeExported::Ok(item.id));
match &item.kind {
AssocItemKind::Const(_, ty, default) => {
AssocItemKind::Const(box ast::ConstItem { ty, expr, .. }) => {
self.visit_ty(ty);
// Only impose the restrictions of `ConstRibKind` for an
// actual constant expression in a provided default.
if let Some(expr) = default {
if let Some(expr) = expr {
// We allow arbitrary const expressions inside of associated consts,
// even if they are potentially not const evaluatable.
//
@ -2799,7 +2800,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
use crate::ResolutionError::*;
self.resolve_doc_links(&item.attrs, MaybeExported::ImplItem(trait_id.ok_or(&item.vis)));
match &item.kind {
AssocItemKind::Const(_, ty, default) => {
AssocItemKind::Const(box ast::ConstItem { ty, expr, .. }) => {
debug!("resolve_implementation AssocItemKind::Const");
// If this is a trait impl, ensure the const
// exists in trait
@ -2814,7 +2815,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
);
self.visit_ty(ty);
if let Some(expr) = default {
if let Some(expr) = expr {
// We allow arbitrary const expressions inside of associated consts,
// even if they are potentially not const evaluatable.
//

6
src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs
View File

@ -1,7 +1,7 @@
use clippy_utils::diagnostics::span_lint_and_then;
use clippy_utils::msrvs::{self, Msrv};
use clippy_utils::source::snippet;
use rustc_ast::ast::{Item, ItemKind, Ty, TyKind};
use rustc_ast::ast::{Item, ItemKind, Ty, TyKind, StaticItem, ConstItem};
use rustc_errors::Applicability;
use rustc_lint::{EarlyContext, EarlyLintPass};
use rustc_session::{declare_tool_lint, impl_lint_pass};
@ -100,13 +100,13 @@ impl EarlyLintPass for RedundantStaticLifetimes {
}
if !item.span.from_expansion() {
if let ItemKind::Const(_, ref var_type, _) = item.kind {
if let ItemKind::Const(box ConstItem { ty: ref var_type, .. }) = item.kind {
Self::visit_type(var_type, cx, "constants have by default a `'static` lifetime");
// Don't check associated consts because `'static` cannot be elided on those (issue
// #2438)
}
if let ItemKind::Static(ref var_type, _, _) = item.kind {
if let ItemKind::Static(box StaticItem { ty: ref var_type,.. }) = item.kind {
Self::visit_type(var_type, cx, "statics have by default a `'static` lifetime");
}
}

6
src/tools/clippy/clippy_utils/src/ast_utils.rs
View File

@ -286,8 +286,8 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
match (l, r) {
(ExternCrate(l), ExternCrate(r)) => l == r,
(Use(l), Use(r)) => eq_use_tree(l, r),
(Static(lt, lm, le), Static(rt, rm, re)) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
(Const(ld, lt, le), Const(rd, rt, re)) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
(Static(box ast::StaticItem { ty: lt, mutability: lm, expr: le}), Static(box ast::StaticItem { ty: rt, mutability: rm, expr: re})) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
(Const(box ast::ConstItem { defaultness: ld, ty: lt, expr: le}), Const(box ast::ConstItem { defaultness: rd, ty: rt, expr: re} )) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
(
Fn(box ast::Fn {
defaultness: ld,
@ -451,7 +451,7 @@ pub fn eq_foreign_item_kind(l: &ForeignItemKind, r: &ForeignItemKind) -> bool {
pub fn eq_assoc_item_kind(l: &AssocItemKind, r: &AssocItemKind) -> bool {
use AssocItemKind::*;
match (l, r) {
(Const(ld, lt, le), Const(rd, rt, re)) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
(Const(box ast::ConstItem { defaultness: ld, ty: lt, expr: le}), Const(box ast::ConstItem { defaultness: rd, ty: rt, expr: re})) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
(
Fn(box ast::Fn {
defaultness: ld,

26
src/tools/rustfmt/src/items.rs
View File

@ -1804,13 +1804,15 @@ pub(crate) struct StaticParts<'a> {
impl<'a> StaticParts<'a> {
pub(crate) fn from_item(item: &'a ast::Item) -> Self {
let (defaultness, prefix, ty, mutability, expr) = match item.kind {
ast::ItemKind::Static(ref ty, mutability, ref expr) => {
(None, "static", ty, mutability, expr)
}
ast::ItemKind::Const(defaultness, ref ty, ref expr) => {
(Some(defaultness), "const", ty, ast::Mutability::Not, expr)
}
let (defaultness, prefix, ty, mutability, expr) = match &item.kind {
ast::ItemKind::Static(s) => (None, "static", &s.ty, s.mutability, &s.expr),
ast::ItemKind::Const(c) => (
Some(c.defaultness),
"const",
&c.ty,
ast::Mutability::Not,
&c.expr,
),
_ => unreachable!(),
};
StaticParts {
@ -1826,10 +1828,8 @@ impl<'a> StaticParts<'a> {
}
pub(crate) fn from_trait_item(ti: &'a ast::AssocItem) -> Self {
let (defaultness, ty, expr_opt) = match ti.kind {
ast::AssocItemKind::Const(defaultness, ref ty, ref expr_opt) => {
(defaultness, ty, expr_opt)
}
let (defaultness, ty, expr_opt) = match &ti.kind {
ast::AssocItemKind::Const(c) => (c.defaultness, &c.ty, &c.expr),
_ => unreachable!(),
};
StaticParts {
@ -1845,8 +1845,8 @@ impl<'a> StaticParts<'a> {
}
pub(crate) fn from_impl_item(ii: &'a ast::AssocItem) -> Self {
let (defaultness, ty, expr) = match ii.kind {
ast::AssocItemKind::Const(defaultness, ref ty, ref expr) => (defaultness, ty, expr),
let (defaultness, ty, expr) = match &ii.kind {
ast::AssocItemKind::Const(c) => (c.defaultness, &c.ty, &c.expr),
_ => unreachable!(),
};
StaticParts {

86
tests/ui/stats/hir-stats.stderr
View File

@ -15,45 +15,45 @@ ast-stats-1 Arm 96 ( 1.5%) 2 48
ast-stats-1 ForeignItem 96 ( 1.5%) 1 96
ast-stats-1 - Fn 96 ( 1.5%) 1
ast-stats-1 FnDecl 120 ( 1.8%) 5 24
ast-stats-1 FieldDef 160 ( 2.4%) 2 80
ast-stats-1 Stmt 160 ( 2.4%) 5 32
ast-stats-1 FieldDef 160 ( 2.5%) 2 80
ast-stats-1 Stmt 160 ( 2.5%) 5 32
ast-stats-1 - Local 32 ( 0.5%) 1
ast-stats-1 - MacCall 32 ( 0.5%) 1
ast-stats-1 - Expr 96 ( 1.5%) 3
ast-stats-1 Param 160 ( 2.4%) 4 40
ast-stats-1 Block 192 ( 2.9%) 6 32
ast-stats-1 Param 160 ( 2.5%) 4 40
ast-stats-1 Block 192 ( 3.0%) 6 32
ast-stats-1 Variant 208 ( 3.2%) 2 104
ast-stats-1 GenericBound 224 ( 3.4%) 4 56
ast-stats-1 - Trait 224 ( 3.4%) 4
ast-stats-1 AssocItem 416 ( 6.3%) 4 104
ast-stats-1 - Type 208 ( 3.2%) 2
ast-stats-1 - Fn 208 ( 3.2%) 2
ast-stats-1 GenericParam 480 ( 7.3%) 5 96
ast-stats-1 Pat 504 ( 7.7%) 7 72
ast-stats-1 GenericBound 224 ( 3.5%) 4 56
ast-stats-1 - Trait 224 ( 3.5%) 4
ast-stats-1 AssocItem 352 ( 5.4%) 4 88
ast-stats-1 - Type 176 ( 2.7%) 2
ast-stats-1 - Fn 176 ( 2.7%) 2
ast-stats-1 GenericParam 480 ( 7.4%) 5 96
ast-stats-1 Pat 504 ( 7.8%) 7 72
ast-stats-1 - Struct 72 ( 1.1%) 1
ast-stats-1 - Wild 72 ( 1.1%) 1
ast-stats-1 - Ident 360 ( 5.5%) 5
ast-stats-1 Expr 576 ( 8.8%) 8 72
ast-stats-1 Expr 576 ( 8.9%) 8 72
ast-stats-1 - Path 72 ( 1.1%) 1
ast-stats-1 - Match 72 ( 1.1%) 1
ast-stats-1 - Struct 72 ( 1.1%) 1
ast-stats-1 - Lit 144 ( 2.2%) 2
ast-stats-1 - Block 216 ( 3.3%) 3
ast-stats-1 PathSegment 720 (11.0%) 30 24
ast-stats-1 Ty 896 (13.7%) 14 64
ast-stats-1 PathSegment 720 (11.1%) 30 24
ast-stats-1 Ty 896 (13.8%) 14 64
ast-stats-1 - Ptr 64 ( 1.0%) 1
ast-stats-1 - Ref 64 ( 1.0%) 1
ast-stats-1 - ImplicitSelf 128 ( 2.0%) 2
ast-stats-1 - Path 640 ( 9.8%) 10
ast-stats-1 Item 1_224 (18.7%) 9 136
ast-stats-1 - Path 640 ( 9.9%) 10
ast-stats-1 Item 1_224 (18.9%) 9 136
ast-stats-1 - Trait 136 ( 2.1%) 1
ast-stats-1 - Enum 136 ( 2.1%) 1
ast-stats-1 - ForeignMod 136 ( 2.1%) 1
ast-stats-1 - Impl 136 ( 2.1%) 1
ast-stats-1 - Fn 272 ( 4.2%) 2
ast-stats-1 - Use 408 ( 6.2%) 3
ast-stats-1 - Use 408 ( 6.3%) 3
ast-stats-1 ----------------------------------------------------------------
ast-stats-1 Total 6_552
ast-stats-1 Total 6_488
ast-stats-1
ast-stats-2 POST EXPANSION AST STATS
ast-stats-2 Name Accumulated Size Count Item Size
@ -65,32 +65,32 @@ ast-stats-2 ExprField 48 ( 0.7%) 1 48
ast-stats-2 WherePredicate 56 ( 0.8%) 1 56
ast-stats-2 - BoundPredicate 56 ( 0.8%) 1
ast-stats-2 Local 72 ( 1.0%) 1 72
ast-stats-2 Arm 96 ( 1.3%) 2 48
ast-stats-2 ForeignItem 96 ( 1.3%) 1 96
ast-stats-2 - Fn 96 ( 1.3%) 1
ast-stats-2 Arm 96 ( 1.4%) 2 48
ast-stats-2 ForeignItem 96 ( 1.4%) 1 96
ast-stats-2 - Fn 96 ( 1.4%) 1
ast-stats-2 InlineAsm 120 ( 1.7%) 1 120
ast-stats-2 FnDecl 120 ( 1.7%) 5 24
ast-stats-2 Attribute 128 ( 1.8%) 4 32
ast-stats-2 - DocComment 32 ( 0.4%) 1
ast-stats-2 - Normal 96 ( 1.3%) 3
ast-stats-2 FieldDef 160 ( 2.2%) 2 80
ast-stats-2 Stmt 160 ( 2.2%) 5 32
ast-stats-2 - Local 32 ( 0.4%) 1
ast-stats-2 - Semi 32 ( 0.4%) 1
ast-stats-2 - Expr 96 ( 1.3%) 3
ast-stats-2 Param 160 ( 2.2%) 4 40
ast-stats-2 - DocComment 32 ( 0.5%) 1
ast-stats-2 - Normal 96 ( 1.4%) 3
ast-stats-2 FieldDef 160 ( 2.3%) 2 80
ast-stats-2 Stmt 160 ( 2.3%) 5 32
ast-stats-2 - Local 32 ( 0.5%) 1
ast-stats-2 - Semi 32 ( 0.5%) 1
ast-stats-2 - Expr 96 ( 1.4%) 3
ast-stats-2 Param 160 ( 2.3%) 4 40
ast-stats-2 Block 192 ( 2.7%) 6 32
ast-stats-2 Variant 208 ( 2.9%) 2 104
ast-stats-2 GenericBound 224 ( 3.1%) 4 56
ast-stats-2 - Trait 224 ( 3.1%) 4
ast-stats-2 AssocItem 416 ( 5.8%) 4 104
ast-stats-2 - Type 208 ( 2.9%) 2
ast-stats-2 - Fn 208 ( 2.9%) 2
ast-stats-2 GenericParam 480 ( 6.7%) 5 96
ast-stats-2 Pat 504 ( 7.0%) 7 72
ast-stats-2 GenericBound 224 ( 3.2%) 4 56
ast-stats-2 - Trait 224 ( 3.2%) 4
ast-stats-2 AssocItem 352 ( 5.0%) 4 88
ast-stats-2 - Type 176 ( 2.5%) 2
ast-stats-2 - Fn 176 ( 2.5%) 2
ast-stats-2 GenericParam 480 ( 6.8%) 5 96
ast-stats-2 Pat 504 ( 7.1%) 7 72
ast-stats-2 - Struct 72 ( 1.0%) 1
ast-stats-2 - Wild 72 ( 1.0%) 1
ast-stats-2 - Ident 360 ( 5.0%) 5
ast-stats-2 - Ident 360 ( 5.1%) 5
ast-stats-2 Expr 648 ( 9.1%) 9 72
ast-stats-2 - Path 72 ( 1.0%) 1
ast-stats-2 - Match 72 ( 1.0%) 1
@ -98,22 +98,22 @@ ast-stats-2 - Struct 72 ( 1.0%) 1
ast-stats-2 - InlineAsm 72 ( 1.0%) 1
ast-stats-2 - Lit 144 ( 2.0%) 2
ast-stats-2 - Block 216 ( 3.0%) 3
ast-stats-2 PathSegment 792 (11.1%) 33 24
ast-stats-2 Ty 896 (12.5%) 14 64
ast-stats-2 PathSegment 792 (11.2%) 33 24
ast-stats-2 Ty 896 (12.6%) 14 64
ast-stats-2 - Ptr 64 ( 0.9%) 1
ast-stats-2 - Ref 64 ( 0.9%) 1
ast-stats-2 - ImplicitSelf 128 ( 1.8%) 2
ast-stats-2 - Path 640 ( 8.9%) 10
ast-stats-2 Item 1_496 (20.9%) 11 136
ast-stats-2 - Path 640 ( 9.0%) 10
ast-stats-2 Item 1_496 (21.1%) 11 136
ast-stats-2 - Trait 136 ( 1.9%) 1
ast-stats-2 - Enum 136 ( 1.9%) 1
ast-stats-2 - ExternCrate 136 ( 1.9%) 1
ast-stats-2 - ForeignMod 136 ( 1.9%) 1
ast-stats-2 - Impl 136 ( 1.9%) 1
ast-stats-2 - Fn 272 ( 3.8%) 2
ast-stats-2 - Use 544 ( 7.6%) 4
ast-stats-2 - Use 544 ( 7.7%) 4
ast-stats-2 ----------------------------------------------------------------
ast-stats-2 Total 7_152
ast-stats-2 Total 7_088
ast-stats-2
hir-stats HIR STATS
hir-stats Name Accumulated Size Count Item Size