Rollup merge of rust-lang#62901 - petrochenkov:serde, r=Centril

cleanup: Remove `extern crate serialize as rustc_serialize`s

src/librustc/Cargo.toml

@@ -27,7 +27,7 @@ rustc_target = { path = "../librustc_target" }
 rustc_macros = { path = "../librustc_macros" }
 rustc_data_structures = { path = "../librustc_data_structures" }
 errors = { path = "../librustc_errors", package = "rustc_errors" }
-serialize = { path = "../libserialize" }
+rustc_serialize = { path = "../libserialize", package = "serialize" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
 backtrace = "0.3.3"

src/librustc/hir/def_id.rs

@@ -1,7 +1,6 @@
 use crate::ty::{self, TyCtxt};
 use crate::hir::map::definitions::FIRST_FREE_DEF_INDEX;
 use rustc_data_structures::indexed_vec::Idx;
-use serialize;
 use std::fmt;
 use std::u32;
 
@@ -93,8 +92,8 @@ impl fmt::Display for CrateNum {
     }
 }
 
-impl serialize::UseSpecializedEncodable for CrateNum {}
-impl serialize::UseSpecializedDecodable for CrateNum {}
+impl rustc_serialize::UseSpecializedEncodable for CrateNum {}
+impl rustc_serialize::UseSpecializedDecodable for CrateNum {}
 
 newtype_index! {
     /// A DefIndex is an index into the hir-map for a crate, identifying a
@@ -134,8 +133,8 @@ impl DefIndex {
     }
 }
 
-impl serialize::UseSpecializedEncodable for DefIndex {}
-impl serialize::UseSpecializedDecodable for DefIndex {}
+impl rustc_serialize::UseSpecializedEncodable for DefIndex {}
+impl rustc_serialize::UseSpecializedDecodable for DefIndex {}
 
 /// A `DefId` identifies a particular *definition*, by combining a crate
 /// index and a def index.
@@ -186,8 +185,8 @@ impl DefId {
     }
 }
 
-impl serialize::UseSpecializedEncodable for DefId {}
-impl serialize::UseSpecializedDecodable for DefId {}
+impl rustc_serialize::UseSpecializedEncodable for DefId {}
+impl rustc_serialize::UseSpecializedDecodable for DefId {}
 
 /// A LocalDefId is equivalent to a DefId with `krate == LOCAL_CRATE`. Since
 /// we encode this information in the type, we can ensure at compile time that
@@ -220,5 +219,5 @@ impl fmt::Debug for LocalDefId {
     }
 }
 
-impl serialize::UseSpecializedEncodable for LocalDefId {}
-impl serialize::UseSpecializedDecodable for LocalDefId {}
+impl rustc_serialize::UseSpecializedEncodable for LocalDefId {}
+impl rustc_serialize::UseSpecializedDecodable for LocalDefId {}

src/librustc/hir/mod.rs

@@ -34,7 +34,7 @@ use rustc_data_structures::sync::{par_for_each_in, Send, Sync};
 use rustc_data_structures::thin_vec::ThinVec;
 use rustc_macros::HashStable;
 
-use serialize::{self, Encoder, Encodable, Decoder, Decodable};
+use rustc_serialize::{self, Encoder, Encodable, Decoder, Decodable};
 use std::collections::{BTreeSet, BTreeMap};
 use std::fmt;
 use smallvec::SmallVec;
@@ -92,7 +92,7 @@ impl HirId {
     }
 }
 
-impl serialize::UseSpecializedEncodable for HirId {
+impl rustc_serialize::UseSpecializedEncodable for HirId {
     fn default_encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
         let HirId {
             owner,
@@ -104,7 +104,7 @@ impl serialize::UseSpecializedEncodable for HirId {
     }
 }
 
-impl serialize::UseSpecializedDecodable for HirId {
+impl rustc_serialize::UseSpecializedDecodable for HirId {
     fn default_decode<D: Decoder>(d: &mut D) -> Result<HirId, D::Error> {
         let owner = DefIndex::decode(d)?;
         let local_id = ItemLocalId::decode(d)?;

src/librustc/hir/ptr.rs

@@ -7,7 +7,7 @@ use std::iter::FromIterator;
 use std::ops::Deref;
 use std::{slice, vec};
 
-use serialize::{Encodable, Decodable, Encoder, Decoder};
+use rustc_serialize::{Encodable, Decodable, Encoder, Decoder};
 
 use rustc_data_structures::stable_hasher::{StableHasher, StableHasherResult,
                                            HashStable};

src/librustc/infer/canonical/mod.rs

@@ -27,7 +27,7 @@ use crate::infer::region_constraints::MemberConstraint;
 use crate::mir::interpret::ConstValue;
 use rustc_data_structures::indexed_vec::IndexVec;
 use rustc_macros::HashStable;
-use serialize::UseSpecializedDecodable;
+use rustc_serialize::UseSpecializedDecodable;
 use smallvec::SmallVec;
 use std::ops::Index;
 use syntax::source_map::Span;

src/librustc/lib.rs

@@ -75,16 +75,8 @@ extern crate getopts;
 extern crate libc;
 #[macro_use] extern crate rustc_macros;
 #[macro_use] extern crate rustc_data_structures;
-
 #[macro_use] extern crate log;
 #[macro_use] extern crate syntax;
-
-// FIXME: This import is used by deriving `RustcDecodable` and `RustcEncodable`. Removing this
-// results in a bunch of "failed to resolve" errors. Hopefully, the compiler moves to serde or
-// something, and we can get rid of this.
-#[allow(rust_2018_idioms)]
-extern crate serialize as rustc_serialize;
-
 #[macro_use] extern crate smallvec;
 
 // Use the test crate here so we depend on getopts through it. This allow tools to link to both

src/librustc/lint/context.rs

@@ -23,7 +23,7 @@ use crate::lint::{LintArray, Level, Lint, LintId, LintPass, LintBuffer};
 use crate::lint::builtin::BuiltinLintDiagnostics;
 use crate::lint::levels::{LintLevelSets, LintLevelsBuilder};
 use crate::middle::privacy::AccessLevels;
-use crate::rustc_serialize::{Decoder, Decodable, Encoder, Encodable};
+use rustc_serialize::{Decoder, Decodable, Encoder, Encodable};
 use crate::session::{config, early_error, Session};
 use crate::ty::{self, print::Printer, subst::Kind, TyCtxt, Ty};
 use crate::ty::layout::{LayoutError, LayoutOf, TyLayout};

src/librustc/mir/cache.rs

@@ -1,27 +1,25 @@
 use rustc_data_structures::indexed_vec::IndexVec;
 use rustc_data_structures::sync::{RwLock, MappedReadGuard, ReadGuard};
-use rustc_data_structures::stable_hasher::{HashStable, StableHasher,
-                                           StableHasherResult};
+use rustc_data_structures::stable_hasher::{HashStable, StableHasher, StableHasherResult};
+use rustc_serialize::{Encodable, Encoder, Decodable, Decoder};
 use crate::ich::StableHashingContext;
 use crate::mir::{Body, BasicBlock};
 
-use crate::rustc_serialize as serialize;
-
 #[derive(Clone, Debug)]
 pub struct Cache {
     predecessors: RwLock<Option<IndexVec<BasicBlock, Vec<BasicBlock>>>>
 }
 
 
-impl serialize::Encodable for Cache {
-    fn encode<S: serialize::Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
-        serialize::Encodable::encode(&(), s)
+impl rustc_serialize::Encodable for Cache {
+    fn encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
+        Encodable::encode(&(), s)
     }
 }
 
-impl serialize::Decodable for Cache {
-    fn decode<D: serialize::Decoder>(d: &mut D) -> Result<Self, D::Error> {
-        serialize::Decodable::decode(d).map(|_v: ()| Self::new())
+impl rustc_serialize::Decodable for Cache {
+    fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error> {
+        Decodable::decode(d).map(|_v: ()| Self::new())
     }
 }
 

src/librustc/mir/interpret/allocation.rs

@@ -113,7 +113,7 @@ impl<Tag> Allocation<Tag> {
     }
 }
 
-impl<'tcx> ::serialize::UseSpecializedDecodable for &'tcx Allocation {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for &'tcx Allocation {}
 
 /// Byte accessors
 impl<'tcx, Tag: Copy, Extra: AllocationExtra<Tag>> Allocation<Tag, Extra> {

src/librustc/mir/interpret/mod.rs

@@ -27,7 +27,7 @@ use crate::hir::def_id::DefId;
 use crate::ty::{self, TyCtxt, Instance, subst::UnpackedKind};
 use crate::ty::layout::{self, Size};
 use std::io;
-use crate::rustc_serialize::{Encoder, Decodable, Encodable};
+use rustc_serialize::{Encoder, Decodable, Encodable};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::sync::{Lock as Mutex, HashMapExt};
 use rustc_data_structures::tiny_list::TinyList;
@@ -51,8 +51,8 @@ pub struct GlobalId<'tcx> {
 #[derive(Copy, Clone, Eq, Hash, Ord, PartialEq, PartialOrd, Debug)]
 pub struct AllocId(pub u64);
 
-impl crate::rustc_serialize::UseSpecializedEncodable for AllocId {}
-impl crate::rustc_serialize::UseSpecializedDecodable for AllocId {}
+impl rustc_serialize::UseSpecializedEncodable for AllocId {}
+impl rustc_serialize::UseSpecializedDecodable for AllocId {}
 
 #[derive(RustcDecodable, RustcEncodable)]
 enum AllocDiscriminant {

src/librustc/mir/mod.rs

@@ -9,7 +9,6 @@ use crate::hir::def_id::DefId;
 use crate::hir::{self, InlineAsm as HirInlineAsm};
 use crate::mir::interpret::{ConstValue, PanicMessage, Scalar};
 use crate::mir::visit::MirVisitable;
-use crate::rustc_serialize as serialize;
 use crate::ty::adjustment::PointerCast;
 use crate::ty::fold::{TypeFoldable, TypeFolder, TypeVisitor};
 use crate::ty::layout::VariantIdx;
@@ -28,6 +27,7 @@ use rustc_data_structures::indexed_vec::{Idx, IndexVec};
 use rustc_data_structures::sync::Lrc;
 use rustc_data_structures::sync::MappedReadGuard;
 use rustc_macros::HashStable;
+use rustc_serialize::{Encodable, Decodable};
 use smallvec::SmallVec;
 use std::borrow::Cow;
 use std::fmt::{self, Debug, Display, Formatter, Write};
@@ -463,8 +463,8 @@ impl<T> ClearCrossCrate<T> {
     }
 }
 
-impl<T: serialize::Encodable> serialize::UseSpecializedEncodable for ClearCrossCrate<T> {}
-impl<T: serialize::Decodable> serialize::UseSpecializedDecodable for ClearCrossCrate<T> {}
+impl<T: Encodable> rustc_serialize::UseSpecializedEncodable for ClearCrossCrate<T> {}
+impl<T: Decodable> rustc_serialize::UseSpecializedDecodable for ClearCrossCrate<T> {}
 
 /// Grouped information about the source code origin of a MIR entity.
 /// Intended to be inspected by diagnostics and debuginfo.

src/librustc/ty/codec.rs

@@ -10,7 +10,7 @@ use crate::arena::ArenaAllocatable;
 use crate::hir::def_id::{DefId, CrateNum};
 use crate::infer::canonical::{CanonicalVarInfo, CanonicalVarInfos};
 use rustc_data_structures::fx::FxHashMap;
-use crate::rustc_serialize::{Decodable, Decoder, Encoder, Encodable, opaque};
+use rustc_serialize::{Decodable, Decoder, Encoder, Encodable, opaque};
 use std::hash::Hash;
 use std::intrinsics;
 use crate::ty::{self, Ty, TyCtxt};
@@ -333,7 +333,7 @@ macro_rules! implement_ty_decoder {
             use $crate::ty::codec::*;
             use $crate::ty::subst::SubstsRef;
             use $crate::hir::def_id::{CrateNum};
-            use crate::rustc_serialize::{Decoder, SpecializedDecoder};
+            use rustc_serialize::{Decoder, SpecializedDecoder};
             use std::borrow::Cow;
 
             impl<$($typaram ),*> Decoder for $DecoderName<$($typaram),*> {

src/librustc/ty/mod.rs

@@ -32,7 +32,7 @@ use crate::util::nodemap::{NodeSet, DefIdMap, FxHashMap};
 use arena::SyncDroplessArena;
 use crate::session::DataTypeKind;
 
-use serialize::{self, Encodable, Encoder};
+use rustc_serialize::{self, Encodable, Encoder};
 use std::cell::RefCell;
 use std::cmp::{self, Ordering};
 use std::fmt;
@@ -588,8 +588,8 @@ impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for ty::TyS<'tcx> {
 
 pub type Ty<'tcx> = &'tcx TyS<'tcx>;
 
-impl<'tcx> serialize::UseSpecializedEncodable for Ty<'tcx> {}
-impl<'tcx> serialize::UseSpecializedDecodable for Ty<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedEncodable for Ty<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for Ty<'tcx> {}
 
 pub type CanonicalTy<'tcx> = Canonical<'tcx, Ty<'tcx>>;
 
@@ -708,7 +708,7 @@ impl<'a, T> IntoIterator for &'a List<T> {
     }
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for &'tcx List<Ty<'tcx>> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for &'tcx List<Ty<'tcx>> {}
 
 impl<T> List<T> {
     #[inline(always)]
@@ -1009,8 +1009,8 @@ pub struct GenericPredicates<'tcx> {
     pub predicates: Vec<(Predicate<'tcx>, Span)>,
 }
 
-impl<'tcx> serialize::UseSpecializedEncodable for GenericPredicates<'tcx> {}
-impl<'tcx> serialize::UseSpecializedDecodable for GenericPredicates<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedEncodable for GenericPredicates<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for GenericPredicates<'tcx> {}
 
 impl<'tcx> GenericPredicates<'tcx> {
     pub fn instantiate(
@@ -1985,13 +1985,13 @@ impl Hash for AdtDef {
     }
 }
 
-impl<'tcx> serialize::UseSpecializedEncodable for &'tcx AdtDef {
+impl<'tcx> rustc_serialize::UseSpecializedEncodable for &'tcx AdtDef {
     fn default_encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
         self.did.encode(s)
     }
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for &'tcx AdtDef {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for &'tcx AdtDef {}
 
 
 impl<'a> HashStable<StableHashingContext<'a>> for AdtDef {

src/librustc/ty/query/on_disk_cache.rs

@@ -5,7 +5,7 @@ use crate::hir::map::definitions::DefPathHash;
 use crate::ich::{CachingSourceMapView, Fingerprint};
 use crate::mir::{self, interpret};
 use crate::mir::interpret::{AllocDecodingSession, AllocDecodingState};
-use crate::rustc_serialize::{Decodable, Decoder, Encodable, Encoder, opaque,
+use rustc_serialize::{Decodable, Decoder, Encodable, Encoder, opaque,
                       SpecializedDecoder, SpecializedEncoder,
                       UseSpecializedDecodable, UseSpecializedEncodable};
 use crate::session::{CrateDisambiguator, Session};

src/librustc/ty/sty.rs

@@ -26,7 +26,6 @@ use rustc_target::spec::abi;
 use syntax::ast::{self, Ident};
 use syntax::symbol::{kw, InternedString};
 
-use serialize;
 use self::InferTy::*;
 use self::TyKind::*;
 
@@ -640,7 +639,7 @@ impl<'tcx> Binder<ExistentialPredicate<'tcx>> {
     }
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for &'tcx List<ExistentialPredicate<'tcx>> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for &'tcx List<ExistentialPredicate<'tcx>> {}
 
 impl<'tcx> List<ExistentialPredicate<'tcx>> {
     /// Returns the "principal def id" of this set of existential predicates.
@@ -1324,7 +1323,7 @@ pub enum RegionKind {
     ReClosureBound(RegionVid),
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for Region<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for Region<'tcx> {}
 
 #[derive(Copy, Clone, PartialEq, Eq, Hash, RustcEncodable, RustcDecodable, Debug, PartialOrd, Ord)]
 pub struct EarlyBoundRegion {
@@ -2333,7 +2332,7 @@ impl<'tcx> Const<'tcx> {
     }
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for &'tcx Const<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for &'tcx Const<'tcx> {}
 
 /// An inference variable for a const, for use in const generics.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd,

src/librustc/ty/subst.rs

@@ -6,7 +6,7 @@ use crate::ty::{self, Lift, List, Ty, TyCtxt, InferConst, ParamConst};
 use crate::ty::fold::{TypeFoldable, TypeFolder, TypeVisitor};
 use crate::mir::interpret::ConstValue;
 
-use serialize::{self, Encodable, Encoder, Decodable, Decoder};
+use rustc_serialize::{self, Encodable, Encoder, Decodable, Decoder};
 use syntax_pos::{Span, DUMMY_SP};
 use smallvec::SmallVec;
 use rustc_macros::HashStable;
@@ -399,7 +399,7 @@ impl<'tcx> TypeFoldable<'tcx> for SubstsRef<'tcx> {
     }
 }
 
-impl<'tcx> serialize::UseSpecializedDecodable for SubstsRef<'tcx> {}
+impl<'tcx> rustc_serialize::UseSpecializedDecodable for SubstsRef<'tcx> {}
 
 ///////////////////////////////////////////////////////////////////////////
 // Public trait `Subst`

src/librustc_codegen_ssa/Cargo.toml

@@ -20,7 +20,7 @@ jobserver = "0.1.11"
 parking_lot = "0.7"
 tempfile = "3.0.5"
 
-serialize = { path = "../libserialize" }
+rustc_serialize = { path = "../libserialize", package = "serialize" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
 rustc = { path = "../librustc" }

src/librustc_codegen_ssa/back/linker.rs

@@ -16,7 +16,7 @@ use rustc::session::config::{self, CrateType, OptLevel, DebugInfo,
                              LinkerPluginLto, Lto};
 use rustc::ty::TyCtxt;
 use rustc_target::spec::{LinkerFlavor, LldFlavor};
-use serialize::{json, Encoder};
+use rustc_serialize::{json, Encoder};
 
 /// For all the linkers we support, and information they might
 /// need out of the shared crate context before we get rid of it.

src/librustc_codegen_ssa/back/wasm.rs

@@ -2,7 +2,7 @@ use std::fs;
 use std::path::Path;
 use std::str;
 
-use serialize::leb128;
+use rustc_serialize::leb128;
 
 // https://webassembly.github.io/spec/core/binary/modules.html#binary-importsec
 const WASM_CUSTOM_SECTION_ID: u8 = 0;

src/librustc_data_structures/Cargo.toml

@@ -15,7 +15,7 @@ indexmap = "1"
 log = "0.4"
 jobserver_crate = { version = "0.1.13", package = "jobserver" }
 lazy_static = "1"
-serialize = { path = "../libserialize" }
+rustc_serialize = { path = "../libserialize", package = "serialize" }
 graphviz = { path = "../libgraphviz" }
 cfg-if = "0.1.2"
 crossbeam-utils = { version = "0.6.5", features = ["nightly"] }