From a69d43493a91b11eb5b840253825330e9320a56f Mon Sep 17 00:00:00 2001 From: Michael Howell Date: Sat, 5 Nov 2022 09:02:10 -0700 Subject: [PATCH] rustdoc: use `ThinVec` and `Box` to shrink `clean::ItemKind` --- src/librustdoc/clean/inline.rs | 4 ++-- src/librustdoc/clean/mod.rs | 8 ++++---- src/librustdoc/clean/types.rs | 14 +++++++------- src/librustdoc/clean/utils.rs | 4 ++-- src/librustdoc/json/conversions.rs | 2 +- 5 files changed, 16 insertions(+), 16 deletions(-) diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs index 841c4f9d53005..cd40413c2648f 100644 --- a/src/librustdoc/clean/inline.rs +++ b/src/librustdoc/clean/inline.rs @@ -3,7 +3,7 @@ use std::iter::once; use std::sync::Arc; -use thin_vec::ThinVec; +use thin_vec::{thin_vec, ThinVec}; use rustc_ast as ast; use rustc_data_structures::fx::FxHashSet; @@ -596,7 +596,7 @@ fn build_module_items( clean::ImportSource { path: clean::Path { res, - segments: vec![clean::PathSegment { + segments: thin_vec![clean::PathSegment { name: prim_ty.as_sym(), args: clean::GenericArgs::AngleBracketed { args: Default::default(), diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 8d38f2df0d85c..ad02bc592866d 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -227,7 +227,7 @@ pub(crate) fn clean_middle_const<'tcx>( // FIXME: instead of storing the stringified expression, store `self` directly instead. Constant { type_: clean_middle_ty(constant.ty(), cx, None), - kind: ConstantKind::TyConst { expr: constant.to_string() }, + kind: ConstantKind::TyConst { expr: constant.to_string().into() }, } } @@ -1200,7 +1200,7 @@ pub(crate) fn clean_middle_assoc_item<'tcx>( true } (GenericParamDefKind::Const { .. }, GenericArg::Const(c)) => match &c.kind { - ConstantKind::TyConst { expr } => expr == param.name.as_str(), + ConstantKind::TyConst { expr } => **expr == *param.name.as_str(), _ => false, }, _ => false, @@ -1529,7 +1529,7 @@ pub(crate) fn clean_ty<'tcx>(ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> T } }; - Array(Box::new(clean_ty(ty, cx)), length) + Array(Box::new(clean_ty(ty, cx)), length.into()) } TyKind::Tup(tys) => Tuple(tys.iter().map(|ty| clean_ty(ty, cx)).collect()), TyKind::OpaqueDef(item_id, _, _) => { @@ -1601,7 +1601,7 @@ pub(crate) fn clean_middle_ty<'tcx>( ty::Array(ty, mut n) => { n = n.eval(cx.tcx, ty::ParamEnv::reveal_all()); let n = print_const(cx, n); - Array(Box::new(clean_middle_ty(ty, cx, None)), n) + Array(Box::new(clean_middle_ty(ty, cx, None)), n.into()) } ty::RawPtr(mt) => RawPointer(mt.mutbl, Box::new(clean_middle_ty(mt.ty, cx, None))), ty::Ref(r, ty, mutbl) => BorrowedRef { diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index fea3690e50a21..7ffb380913796 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -1621,7 +1621,7 @@ pub(crate) enum Type { /// An array type. /// /// The `String` field is a stringified version of the array's length parameter. - Array(Box, String), + Array(Box, Box), /// A raw pointer type: `*const i32`, `*mut i32` RawPointer(Mutability, Box), /// A reference type: `&i32`, `&'a mut Foo` @@ -2206,7 +2206,7 @@ impl Span { #[derive(Clone, PartialEq, Eq, Debug, Hash)] pub(crate) struct Path { pub(crate) res: Res, - pub(crate) segments: Vec, + pub(crate) segments: ThinVec, } impl Path { @@ -2356,7 +2356,7 @@ pub(crate) enum ConstantKind { /// /// Note that `ty::Const` includes generic parameters, and may not always be uniquely identified /// by a DefId. So this field must be different from `Extern`. - TyConst { expr: String }, + TyConst { expr: Box }, /// A constant (expression) that's not an item or associated item. These are usually found /// nested inside types (e.g., array lengths) or expressions (e.g., repeat counts), and also /// used to define explicit discriminant values for enum variants. @@ -2384,7 +2384,7 @@ impl Constant { impl ConstantKind { pub(crate) fn expr(&self, tcx: TyCtxt<'_>) -> String { match *self { - ConstantKind::TyConst { ref expr } => expr.clone(), + ConstantKind::TyConst { ref expr } => expr.to_string(), ConstantKind::Extern { def_id } => print_inlined_const(tcx, def_id), ConstantKind::Local { body, .. } | ConstantKind::Anonymous { body } => { print_const_expr(tcx, body) @@ -2570,13 +2570,13 @@ mod size_asserts { // tidy-alphabetical-start static_assert_size!(Crate, 72); // frequently moved by-value static_assert_size!(DocFragment, 32); - static_assert_size!(GenericArg, 48); + static_assert_size!(GenericArg, 32); static_assert_size!(GenericArgs, 32); static_assert_size!(GenericParamDef, 56); static_assert_size!(Generics, 16); static_assert_size!(Item, 56); - static_assert_size!(ItemKind, 88); + static_assert_size!(ItemKind, 64); static_assert_size!(PathSegment, 40); - static_assert_size!(Type, 48); + static_assert_size!(Type, 32); // tidy-alphabetical-end } diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs index df20dc3fc3f7e..4e1f39cf87b96 100644 --- a/src/librustdoc/clean/utils.rs +++ b/src/librustdoc/clean/utils.rs @@ -21,7 +21,7 @@ use rustc_middle::ty::{self, DefIdTree, TyCtxt}; use rustc_span::symbol::{kw, sym, Symbol}; use std::fmt::Write as _; use std::mem; -use thin_vec::ThinVec; +use thin_vec::{thin_vec, ThinVec}; #[cfg(test)] mod tests; @@ -136,7 +136,7 @@ pub(super) fn external_path<'tcx>( let name = cx.tcx.item_name(did); Path { res: Res::Def(def_kind, did), - segments: vec![PathSegment { + segments: thin_vec![PathSegment { name, args: external_generic_args(cx, did, has_self, bindings, substs), }], diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs index cb8b7c18029f0..091a1ba70cab7 100644 --- a/src/librustdoc/json/conversions.rs +++ b/src/librustdoc/json/conversions.rs @@ -485,7 +485,7 @@ impl FromWithTcx for Type { BareFunction(f) => Type::FunctionPointer(Box::new((*f).into_tcx(tcx))), Tuple(t) => Type::Tuple(t.into_tcx(tcx)), Slice(t) => Type::Slice(Box::new((*t).into_tcx(tcx))), - Array(t, s) => Type::Array { type_: Box::new((*t).into_tcx(tcx)), len: s }, + Array(t, s) => Type::Array { type_: Box::new((*t).into_tcx(tcx)), len: s.to_string() }, ImplTrait(g) => Type::ImplTrait(g.into_tcx(tcx)), Infer => Type::Infer, RawPointer(mutability, type_) => Type::RawPointer {