Rollup of 10 pull requests

src/bootstrap/builder.rs

@@ -1856,6 +1856,7 @@ mod __test {
             doc_tests: DocTests::No,
             bless: false,
             compare_mode: None,
+            rustfix_coverage: false,
         };
 
         let build = Build::new(config);
@@ -1897,6 +1898,7 @@ mod __test {
             doc_tests: DocTests::No,
             bless: false,
             compare_mode: None,
+            rustfix_coverage: false,
         };
 
         let build = Build::new(config);

src/bootstrap/flags.rs

@@ -56,6 +56,7 @@ pub enum Subcommand {
         rustc_args: Vec<String>,
         fail_fast: bool,
         doc_tests: DocTests,
+        rustfix_coverage: bool,
     },
     Bench {
         paths: Vec<PathBuf>,
@@ -188,6 +189,12 @@ To learn more about a subcommand, run `./x.py <subcommand> -h`"
                     "mode describing what file the actual ui output will be compared to",
                     "COMPARE MODE",
                 );
+                opts.optflag(
+                    "",
+                    "rustfix-coverage",
+                    "enable this to generate a Rustfix coverage file, which is saved in \
+                        `/<build_base>/rustfix_missing_coverage.txt`",
+                );
             }
             "bench" => {
                 opts.optmulti("", "test-args", "extra arguments", "ARGS");
@@ -363,6 +370,7 @@ Arguments:
                 test_args: matches.opt_strs("test-args"),
                 rustc_args: matches.opt_strs("rustc-args"),
                 fail_fast: !matches.opt_present("no-fail-fast"),
+                rustfix_coverage: matches.opt_present("rustfix-coverage"),
                 doc_tests: if matches.opt_present("doc") {
                     DocTests::Only
                 } else if matches.opt_present("no-doc") {
@@ -467,6 +475,13 @@ impl Subcommand {
         }
     }
 
+    pub fn rustfix_coverage(&self) -> bool {
+        match *self {
+            Subcommand::Test { rustfix_coverage, .. } => rustfix_coverage,
+            _ => false,
+        }
+    }
+
     pub fn compare_mode(&self) -> Option<&str> {
         match *self {
             Subcommand::Test {

src/bootstrap/test.rs

@@ -1284,6 +1284,10 @@ impl Step for Compiletest {
             cmd.arg("--android-cross-path").arg("");
         }
 
+        if builder.config.cmd.rustfix_coverage() {
+            cmd.arg("--rustfix-coverage");
+        }
+
         builder.ci_env.force_coloring_in_ci(&mut cmd);
 
         let _folder = builder.fold_output(|| format!("test_{}", suite));

src/libcore/ffi.rs

@@ -190,7 +190,7 @@ impl<'a> VaList<'a> {
                reason = "the `c_variadic` feature has not been properly tested on \
                          all supported platforms",
                issue = "44930")]
-    pub unsafe fn copy<F, R>(&self, f: F) -> R
+    pub unsafe fn with_copy<F, R>(&self, f: F) -> R
             where F: for<'copy> FnOnce(VaList<'copy>) -> R {
         #[cfg(any(all(not(target_arch = "aarch64"), not(target_arch = "powerpc"),
                       not(target_arch = "x86_64")),

src/libcore/num/mod.rs

@@ -112,6 +112,24 @@ nonzero_integers! {
     #[stable(feature = "signed_nonzero", since = "1.34.0")] NonZeroIsize(isize);
 }
 
+macro_rules! from_str_radix_nzint_impl {
+    ($($t:ty)*) => {$(
+        #[stable(feature = "nonzero_parse", since = "1.35.0")]
+        impl FromStr for $t {
+            type Err = ParseIntError;
+            fn from_str(src: &str) -> Result<Self, Self::Err> {
+                Self::new(from_str_radix(src, 10)?)
+                    .ok_or(ParseIntError {
+                        kind: IntErrorKind::Zero
+                    })
+            }
+        }
+    )*}
+}
+
+from_str_radix_nzint_impl! { NonZeroU8 NonZeroU16 NonZeroU32 NonZeroU64 NonZeroU128 NonZeroUsize
+                             NonZeroI8 NonZeroI16 NonZeroI32 NonZeroI64 NonZeroI128 NonZeroIsize }
+
 /// Provides intentionally-wrapped arithmetic on `T`.
 ///
 /// Operations like `+` on `u32` values is intended to never overflow,
@@ -4768,6 +4786,11 @@ pub enum IntErrorKind {
     Overflow,
     /// Integer is too small to store in target integer type.
     Underflow,
+    /// Value was Zero
+    ///
+    /// This variant will be emitted when the parsing string has a value of zero, which
+    /// would be illegal for non-zero types.
+    Zero,
 }
 
 impl ParseIntError {
@@ -4790,6 +4813,7 @@ impl ParseIntError {
             IntErrorKind::InvalidDigit => "invalid digit found in string",
             IntErrorKind::Overflow => "number too large to fit in target type",
             IntErrorKind::Underflow => "number too small to fit in target type",
+            IntErrorKind::Zero => "number would be zero for non-zero type",
         }
     }
 }

src/libcore/tests/lib.rs

@@ -31,6 +31,7 @@
 #![feature(slice_internals)]
 #![feature(slice_partition_dedup)]
 #![feature(copy_within)]
+#![feature(int_error_matching)]
 
 extern crate core;
 extern crate test;

src/libcore/tests/nonzero.rs

@@ -1,6 +1,5 @@
-use core::num::{NonZeroU32, NonZeroI32};
-use core::option::Option;
-use core::option::Option::{Some, None};
+use core::num::{IntErrorKind, NonZeroI32, NonZeroI8, NonZeroU32, NonZeroU8};
+use core::option::Option::{self, None, Some};
 use std::mem::size_of;
 
 #[test]
@@ -126,3 +125,24 @@ fn test_from_signed_nonzero() {
     let num: i32 = nz.into();
     assert_eq!(num, 1i32);
 }
+
+#[test]
+fn test_from_str() {
+    assert_eq!("123".parse::<NonZeroU8>(), Ok(NonZeroU8::new(123).unwrap()));
+    assert_eq!(
+        "0".parse::<NonZeroU8>().err().map(|e| e.kind().clone()),
+        Some(IntErrorKind::Zero)
+    );
+    assert_eq!(
+        "-1".parse::<NonZeroU8>().err().map(|e| e.kind().clone()),
+        Some(IntErrorKind::InvalidDigit)
+    );
+    assert_eq!(
+        "-129".parse::<NonZeroI8>().err().map(|e| e.kind().clone()),
+        Some(IntErrorKind::Underflow)
+    );
+    assert_eq!(
+        "257".parse::<NonZeroU8>().err().map(|e| e.kind().clone()),
+        Some(IntErrorKind::Overflow)
+    );
+}

src/librustc/dep_graph/dep_node.rs

@@ -85,11 +85,6 @@ macro_rules! is_anon_attr {
     ($attr:ident) => (false);
 }
 
-macro_rules! is_input_attr {
-    (input) => (true);
-    ($attr:ident) => (false);
-}
-
 macro_rules! is_eval_always_attr {
     (eval_always) => (true);
     ($attr:ident) => (false);
@@ -99,10 +94,6 @@ macro_rules! contains_anon_attr {
     ($($attr:ident),*) => ({$(is_anon_attr!($attr) | )* false});
 }
 
-macro_rules! contains_input_attr {
-    ($($attr:ident),*) => ({$(is_input_attr!($attr) | )* false});
-}
-
 macro_rules! contains_eval_always_attr {
     ($($attr:ident),*) => ({$(is_eval_always_attr!($attr) | )* false});
 }
@@ -151,7 +142,7 @@ macro_rules! define_dep_nodes {
                 }
             }
 
-            // FIXME: Make `is_anon`, `is_input`, `is_eval_always` and `has_params` properties
+            // FIXME: Make `is_anon`, `is_eval_always` and `has_params` properties
             // of queries
             #[inline(always)]
             pub fn is_anon(&self) -> bool {
@@ -162,15 +153,6 @@ macro_rules! define_dep_nodes {
                 }
             }
 
-            #[inline(always)]
-            pub fn is_input(&self) -> bool {
-                match *self {
-                    $(
-                        DepKind :: $variant => { contains_input_attr!($($attr),*) }
-                    )*
-                }
-            }
-
             #[inline(always)]
             pub fn is_eval_always(&self) -> bool {
                 match *self {
@@ -438,17 +420,17 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     // suitable wrapper, you can use `tcx.dep_graph.ignore()` to gain
     // access to the krate, but you must remember to add suitable
     // edges yourself for the individual items that you read.
-    [input] Krate,
+    [eval_always] Krate,
 
     // Represents the body of a function or method. The def-id is that of the
     // function/method.
-    [input] HirBody(DefId),
+    [eval_always] HirBody(DefId),
 
     // Represents the HIR node with the given node-id
-    [input] Hir(DefId),
+    [eval_always] Hir(DefId),
 
     // Represents metadata from an extern crate.
-    [input] CrateMetadata(CrateNum),
+    [eval_always] CrateMetadata(CrateNum),
 
     // Represents different phases in the compiler.
     [] RegionScopeTree(DefId),
@@ -481,7 +463,7 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] CollectModItemTypes(DefId),
 
     [] Reachability,
-    [eval_always] CrateVariances,
+    [] CrateVariances,
 
     // Nodes representing bits of computed IR in the tcx. Each shared
     // table in the tcx (or elsewhere) maps to one of these
@@ -534,7 +516,7 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     // The set of impls for a given trait.
     [] TraitImpls(DefId),
 
-    [input] AllLocalTraitImpls,
+    [eval_always] AllLocalTraitImpls,
 
     [anon] TraitSelect,
 
@@ -546,7 +528,7 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     // to make type debuginfo to be source location independent. Declaring
     // DefSpan an input makes sure that changes to these are always detected
     // regardless of HIR hashing.
-    [input] DefSpan(DefId),
+    [eval_always] DefSpan(DefId),
     [] LookupStability(DefId),
     [] LookupDeprecationEntry(DefId),
     [] ConstIsRvaluePromotableToStatic(DefId),
@@ -564,10 +546,10 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] IsCompilerBuiltins(CrateNum),
     [] HasGlobalAllocator(CrateNum),
     [] HasPanicHandler(CrateNum),
-    [input] ExternCrate(DefId),
+    [eval_always] ExternCrate(DefId),
     [] Specializes { impl1: DefId, impl2: DefId },
-    [input] InScopeTraits(DefIndex),
-    [input] ModuleExports(DefId),
+    [eval_always] InScopeTraits(DefIndex),
+    [eval_always] ModuleExports(DefId),
     [] IsSanitizerRuntime(CrateNum),
     [] IsProfilerRuntime(CrateNum),
     [] GetPanicStrategy(CrateNum),
@@ -580,10 +562,10 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] EntryFn(CrateNum),
     [] PluginRegistrarFn(CrateNum),
     [] ProcMacroDeclsStatic(CrateNum),
-    [input] CrateDisambiguator(CrateNum),
-    [input] CrateHash(CrateNum),
-    [input] OriginalCrateName(CrateNum),
-    [input] ExtraFileName(CrateNum),
+    [eval_always] CrateDisambiguator(CrateNum),
+    [eval_always] CrateHash(CrateNum),
+    [eval_always] OriginalCrateName(CrateNum),
+    [eval_always] ExtraFileName(CrateNum),
 
     [] ImplementationsOfTrait { krate: CrateNum, trait_id: DefId },
     [] AllTraitImplementations(CrateNum),
@@ -592,16 +574,16 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] IsDllimportForeignItem(DefId),
     [] IsStaticallyIncludedForeignItem(DefId),
     [] NativeLibraryKind(DefId),
-    [input] LinkArgs,
+    [eval_always] LinkArgs,
 
     [] ResolveLifetimes(CrateNum),
     [] NamedRegion(DefIndex),
     [] IsLateBound(DefIndex),
     [] ObjectLifetimeDefaults(DefIndex),
 
     [] Visibility(DefId),
-    [input] DepKind(CrateNum),
-    [input] CrateName(CrateNum),
+    [eval_always] DepKind(CrateNum),
+    [eval_always] CrateName(CrateNum),
     [] ItemChildren(DefId),
     [] ExternModStmtCnum(DefId),
     [eval_always] GetLibFeatures,
@@ -610,24 +592,24 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] DefinedLangItems(CrateNum),
     [] MissingLangItems(CrateNum),
     [] VisibleParentMap,
-    [input] MissingExternCrateItem(CrateNum),
-    [input] UsedCrateSource(CrateNum),
-    [input] PostorderCnums,
-
-    [input] Freevars(DefId),
-    [input] MaybeUnusedTraitImport(DefId),
-    [input] MaybeUnusedExternCrates,
-    [input] NamesImportedByGlobUse(DefId),
+    [eval_always] MissingExternCrateItem(CrateNum),
+    [eval_always] UsedCrateSource(CrateNum),
+    [eval_always] PostorderCnums,
+
+    [eval_always] Freevars(DefId),
+    [eval_always] MaybeUnusedTraitImport(DefId),
+    [eval_always] MaybeUnusedExternCrates,
+    [eval_always] NamesImportedByGlobUse(DefId),
     [eval_always] StabilityIndex,
     [eval_always] AllTraits,
-    [input] AllCrateNums,
+    [eval_always] AllCrateNums,
     [] ExportedSymbols(CrateNum),
     [eval_always] CollectAndPartitionMonoItems,
     [] IsCodegenedItem(DefId),
     [] CodegenUnit(InternedString),
     [] BackendOptimizationLevel(CrateNum),
     [] CompileCodegenUnit(InternedString),
-    [input] OutputFilenames,
+    [eval_always] OutputFilenames,
     [] NormalizeProjectionTy(CanonicalProjectionGoal<'tcx>),
     [] NormalizeTyAfterErasingRegions(ParamEnvAnd<'tcx, Ty<'tcx>>),
     [] ImpliedOutlivesBounds(CanonicalTyGoal<'tcx>),
@@ -646,11 +628,11 @@ rustc_dep_node_append!([define_dep_nodes!][ <'tcx>
     [] SubstituteNormalizeAndTestPredicates { key: (DefId, SubstsRef<'tcx>) },
     [] MethodAutoderefSteps(CanonicalTyGoal<'tcx>),
 
-    [input] TargetFeaturesWhitelist,
+    [eval_always] TargetFeaturesWhitelist,
 
     [] InstanceDefSizeEstimate { instance_def: InstanceDef<'tcx> },
 
-    [input] Features,
+    [eval_always] Features,
 
     [] ForeignModules(CrateNum),