Rollup merge of #102719 - Nilstrieb:tidy-alphabetical, r=jackh726

Enforce alphabetical sorting with tidy

We have many places where things are supposed to be sorted alphabetically. For the smaller and more recent size assertions, this is mostly upheld, but in other more... alive places it's very messy.

This introduces a new tidy directive to check that a section of code is sorted alphabetically and fixes all places where sorting has gone wrong.

compiler/rustc_ast/src/ast.rs

@@ -3039,7 +3039,7 @@ pub type ForeignItem = Item<ForeignItemKind>;
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(AssocItem, 104);
     static_assert_size!(AssocItemKind, 32);
     static_assert_size!(Attribute, 32);
@@ -3060,11 +3060,12 @@ mod size_asserts {
     static_assert_size!(Local, 72);
     static_assert_size!(Param, 40);
     static_assert_size!(Pat, 120);
-    static_assert_size!(PatKind, 96);
     static_assert_size!(Path, 40);
     static_assert_size!(PathSegment, 24);
+    static_assert_size!(PatKind, 96);
     static_assert_size!(Stmt, 32);
     static_assert_size!(StmtKind, 16);
     static_assert_size!(Ty, 96);
     static_assert_size!(TyKind, 72);
+    // tidy-alphabetical-end
 }

compiler/rustc_ast/src/token.rs

@@ -889,10 +889,11 @@ where
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(Lit, 12);
     static_assert_size!(LitKind, 2);
     static_assert_size!(Nonterminal, 16);
     static_assert_size!(Token, 24);
     static_assert_size!(TokenKind, 16);
+    // tidy-alphabetical-end
 }

compiler/rustc_ast/src/tokenstream.rs

@@ -646,10 +646,11 @@ impl DelimSpan {
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(AttrTokenStream, 8);
     static_assert_size!(AttrTokenTree, 32);
     static_assert_size!(LazyAttrTokenStream, 8);
     static_assert_size!(TokenStream, 8);
     static_assert_size!(TokenTree, 32);
+    // tidy-alphabetical-end
 }

compiler/rustc_const_eval/src/interpret/operand.rs

@@ -788,9 +788,10 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(Immediate, 48);
     static_assert_size!(ImmTy<'_>, 64);
     static_assert_size!(Operand, 56);
     static_assert_size!(OpTy<'_>, 80);
+    // tidy-alphabetical-end
 }

compiler/rustc_const_eval/src/interpret/place.rs

@@ -892,10 +892,11 @@ where
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
-    static_assert_size!(MemPlaceMeta, 24);
+    // tidy-alphabetical-start
     static_assert_size!(MemPlace, 40);
+    static_assert_size!(MemPlaceMeta, 24);
     static_assert_size!(MPlaceTy<'_>, 64);
     static_assert_size!(Place, 40);
     static_assert_size!(PlaceTy<'_>, 64);
+    // tidy-alphabetical-end
 }

compiler/rustc_error_messages/src/lib.rs

@@ -35,6 +35,7 @@ pub use unic_langid::{langid, LanguageIdentifier};
 
 // Generates `DEFAULT_LOCALE_RESOURCES` static and `fluent_generated` module.
 fluent_messages! {
+    // tidy-alphabetical-start
     ast_lowering => "../locales/en-US/ast_lowering.ftl",
     ast_passes => "../locales/en-US/ast_passes.ftl",
     attr => "../locales/en-US/attr.ftl",
@@ -64,6 +65,7 @@ fluent_messages! {
     symbol_mangling => "../locales/en-US/symbol_mangling.ftl",
     trait_selection => "../locales/en-US/trait_selection.ftl",
     ty_utils => "../locales/en-US/ty_utils.ftl",
+    // tidy-alphabetical-end
 }
 
 pub use fluent_generated::{self as fluent, DEFAULT_LOCALE_RESOURCES};

compiler/rustc_hir/src/hir.rs

@@ -3514,7 +3514,7 @@ impl<'hir> Node<'hir> {
 #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
 mod size_asserts {
     use super::*;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(Block<'_>, 48);
     static_assert_size!(Body<'_>, 32);
     static_assert_size!(Expr<'_>, 64);
@@ -3533,9 +3533,9 @@ mod size_asserts {
     static_assert_size!(Local<'_>, 64);
     static_assert_size!(Param<'_>, 32);
     static_assert_size!(Pat<'_>, 72);
-    static_assert_size!(PatKind<'_>, 48);
     static_assert_size!(Path<'_>, 40);
     static_assert_size!(PathSegment<'_>, 48);
+    static_assert_size!(PatKind<'_>, 48);
     static_assert_size!(QPath<'_>, 24);
     static_assert_size!(Res, 12);
     static_assert_size!(Stmt<'_>, 32);
@@ -3544,4 +3544,5 @@ mod size_asserts {
     static_assert_size!(TraitItemKind<'_>, 48);
     static_assert_size!(Ty<'_>, 48);
     static_assert_size!(TyKind<'_>, 32);
+    // tidy-alphabetical-end
 }

compiler/rustc_interface/src/tests.rs

@@ -540,7 +540,7 @@ fn test_codegen_options_tracking_hash() {
     }
 
     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
-    // This list is in alphabetical order.
+    // tidy-alphabetical-start
     untracked!(ar, String::from("abc"));
     untracked!(codegen_units, Some(42));
     untracked!(default_linker_libraries, true);
@@ -556,6 +556,7 @@ fn test_codegen_options_tracking_hash() {
     untracked!(rpath, true);
     untracked!(save_temps, true);
     untracked!(strip, Strip::Debuginfo);
+    // tidy-alphabetical-end
 
     macro_rules! tracked {
         ($name: ident, $non_default_value: expr) => {
@@ -567,7 +568,7 @@ fn test_codegen_options_tracking_hash() {
     }
 
     // Make sure that changing a [TRACKED] option changes the hash.
-    // This list is in alphabetical order.
+    // tidy-alphabetical-start
     tracked!(code_model, Some(CodeModel::Large));
     tracked!(control_flow_guard, CFGuard::Checks);
     tracked!(debug_assertions, Some(true));
@@ -577,8 +578,8 @@ fn test_codegen_options_tracking_hash() {
     tracked!(force_unwind_tables, Some(true));
     tracked!(inline_threshold, Some(0xf007ba11));
     tracked!(instrument_coverage, Some(InstrumentCoverage::All));
-    tracked!(linker_plugin_lto, LinkerPluginLto::LinkerPluginAuto);
     tracked!(link_dead_code, Some(true));
+    tracked!(linker_plugin_lto, LinkerPluginLto::LinkerPluginAuto);
     tracked!(llvm_args, vec![String::from("1"), String::from("2")]);
     tracked!(lto, LtoCli::Fat);
     tracked!(metadata, vec![String::from("A"), String::from("B")]);
@@ -599,6 +600,7 @@ fn test_codegen_options_tracking_hash() {
     tracked!(symbol_mangling_version, Some(SymbolManglingVersion::V0));
     tracked!(target_cpu, Some(String::from("abc")));
     tracked!(target_feature, String::from("all the features, all of them"));
+    // tidy-alphabetical-end
 }
 
 #[test]
@@ -619,12 +621,13 @@ fn test_top_level_options_tracked_no_crate() {
     }
 
     // Make sure that changing a [TRACKED_NO_CRATE_HASH] option leaves the crate hash unchanged but changes the incremental hash.
-    // This list is in alphabetical order.
-    tracked!(remap_path_prefix, vec![("/home/bors/rust".into(), "src".into())]);
+    // tidy-alphabetical-start
     tracked!(
         real_rust_source_base_dir,
         Some("/home/bors/rust/.rustup/toolchains/nightly/lib/rustlib/src/rust".into())
     );
+    tracked!(remap_path_prefix, vec![("/home/bors/rust".into(), "src".into())]);
+    // tidy-alphabetical-end
 }
 
 #[test]
@@ -641,7 +644,7 @@ fn test_unstable_options_tracking_hash() {
     }
 
     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
-    // This list is in alphabetical order.
+    // tidy-alphabetical-start
     untracked!(assert_incr_state, Some(String::from("loaded")));
     untracked!(deduplicate_diagnostics, false);
     untracked!(dep_tasks, true);
@@ -678,12 +681,12 @@ fn test_unstable_options_tracking_hash() {
     untracked!(perf_stats, true);
     // `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
     untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
-    untracked!(profile_closures, true);
     untracked!(print_llvm_passes, true);
     untracked!(print_mono_items, Some(String::from("abc")));
     untracked!(print_type_sizes, true);
     untracked!(proc_macro_backtrace, true);
     untracked!(proc_macro_execution_strategy, ProcMacroExecutionStrategy::CrossThread);
+    untracked!(profile_closures, true);
     untracked!(query_dep_graph, true);
     untracked!(save_analysis, true);
     untracked!(self_profile, SwitchWithOptPath::Enabled(None));
@@ -701,6 +704,7 @@ fn test_unstable_options_tracking_hash() {
     untracked!(unstable_options, true);
     untracked!(validate_mir, true);
     untracked!(verbose, true);
+    // tidy-alphabetical-end
 
     macro_rules! tracked {
         ($name: ident, $non_default_value: expr) => {
@@ -712,7 +716,7 @@ fn test_unstable_options_tracking_hash() {
     }
 
     // Make sure that changing a [TRACKED] option changes the hash.
-    // This list is in alphabetical order.
+    // tidy-alphabetical-start
     tracked!(allow_features, Some(vec![String::from("lang_items")]));
     tracked!(always_encode_mir, true);
     tracked!(asm_comments, true);
@@ -733,10 +737,10 @@ fn test_unstable_options_tracking_hash() {
     tracked!(debug_macros, true);
     tracked!(dep_info_omit_d_target, true);
     tracked!(drop_tracking, true);
-    tracked!(export_executable_symbols, true);
     tracked!(dual_proc_macros, true);
     tracked!(dwarf_version, Some(5));
     tracked!(emit_thin_lto, false);
+    tracked!(export_executable_symbols, true);
     tracked!(fewer_names, Some(true));
     tracked!(force_unstable_if_unmarked, true);
     tracked!(fuel, Some(("abc".to_string(), 99)));
@@ -759,8 +763,8 @@ fn test_unstable_options_tracking_hash() {
     tracked!(mutable_noalias, Some(true));
     tracked!(no_generate_arange_section, true);
     tracked!(no_link, true);
-    tracked!(no_unique_section_names, true);
     tracked!(no_profiler_runtime, true);
+    tracked!(no_unique_section_names, true);
     tracked!(oom, OomStrategy::Panic);
     tracked!(osx_rpath_install_name, true);
     tracked!(packed_bundled_libs, true);
@@ -773,8 +777,8 @@ fn test_unstable_options_tracking_hash() {
     tracked!(print_fuel, Some("abc".to_string()));
     tracked!(profile, true);
     tracked!(profile_emit, Some(PathBuf::from("abc")));
-    tracked!(profiler_runtime, "abc".to_string());
     tracked!(profile_sample_use, Some(PathBuf::from("abc")));
+    tracked!(profiler_runtime, "abc".to_string());
     tracked!(relax_elf_relocations, Some(true));
     tracked!(relro_level, Some(RelroLevel::Full));
     tracked!(remap_cwd_prefix, Some(PathBuf::from("abc")));
@@ -803,6 +807,7 @@ fn test_unstable_options_tracking_hash() {
     tracked!(verify_llvm_ir, true);
     tracked!(virtual_function_elimination, true);
     tracked!(wasi_exec_model, Some(WasiExecModel::Reactor));
+    // tidy-alphabetical-end
 
     macro_rules! tracked_no_crate_hash {
         ($name: ident, $non_default_value: expr) => {

compiler/rustc_middle/src/mir/mod.rs

@@ -2946,11 +2946,12 @@ impl Location {
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(BasicBlockData<'_>, 144);
     static_assert_size!(LocalDecl<'_>, 56);
     static_assert_size!(Statement<'_>, 32);
     static_assert_size!(StatementKind<'_>, 16);
     static_assert_size!(Terminator<'_>, 112);
     static_assert_size!(TerminatorKind<'_>, 96);
+    // tidy-alphabetical-end
 }

compiler/rustc_middle/src/mir/syntax.rs

@@ -1245,10 +1245,11 @@ pub enum BinOp {
 #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
 mod size_asserts {
     use super::*;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(AggregateKind<'_>, 40);
     static_assert_size!(Operand<'_>, 24);
     static_assert_size!(Place<'_>, 16);
     static_assert_size!(PlaceElem<'_>, 24);
     static_assert_size!(Rvalue<'_>, 40);
+    // tidy-alphabetical-end
 }

compiler/rustc_middle/src/thir.rs

@@ -848,12 +848,13 @@ impl<'tcx> fmt::Display for Pat<'tcx> {
 #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
 mod size_asserts {
     use super::*;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(Block, 56);
     static_assert_size!(Expr<'_>, 64);
     static_assert_size!(ExprKind<'_>, 40);
     static_assert_size!(Pat<'_>, 72);
     static_assert_size!(PatKind<'_>, 56);
     static_assert_size!(Stmt<'_>, 48);
     static_assert_size!(StmtKind<'_>, 40);
+    // tidy-alphabetical-end
 }

compiler/rustc_middle/src/ty/mod.rs

@@ -2668,8 +2668,9 @@ pub struct DestructuredConst<'tcx> {
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(PredicateS<'_>, 48);
     static_assert_size!(TyS<'_>, 40);
     static_assert_size!(WithStableHash<TyS<'_>>, 56);
+    // tidy-alphabetical-end
 }

compiler/rustc_parse/src/parser/attr_wrapper.rs

@@ -459,7 +459,8 @@ fn make_token_stream(
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
-    // These are in alphabetical order, which is easy to maintain.
+    // tidy-alphabetical-start
     static_assert_size!(AttrWrapper, 16);
     static_assert_size!(LazyAttrTokenStreamImpl, 144);
+    // tidy-alphabetical-end
 }