Auto merge of #44441 - tamird:cargo-bitflags, r=alexcrichton

Remove rustc_bitflags; use the bitflags crate

r? @alexcrichton

Author: bors

src/Cargo.lock

@@ -63,7 +63,7 @@ cargo = { path = "tools/cargo" }
 # Override rustfmt dependencies both on the repo and the crate (the RLS
 # sometimes uses either).
 # FIXME should only need the crates.io patch, long term.
-[patch.'https://github.com/rust-lang-nursery/rustfmt']
+[patch."https://github.com/rust-lang-nursery/rustfmt"]
 rustfmt-nightly = { path = "tools/rustfmt" }
 [patch.crates-io]
 rustfmt-nightly = { path = "tools/rustfmt" }

src/Cargo.toml

@@ -625,7 +625,6 @@ def build_bootstrap(self):
 
     def build_triple(self):
         """Build triple as in LLVM"""
-        default_encoding = sys.getdefaultencoding()
         config = self.get_toml('build')
         if config:
             return config
@@ -638,7 +637,7 @@ def update_submodules(self):
             return
         print('Updating submodules')
         default_encoding = sys.getdefaultencoding()
-        run(["git", "submodule", "-q", "sync"], cwd=self.rust_root)
+        run(["git", "submodule", "-q", "sync"], cwd=self.rust_root, verbose=self.verbose)
         submodules = [s.split(' ', 1)[1] for s in subprocess.check_output(
             ["git", "config", "--file",
              os.path.join(self.rust_root, ".gitmodules"),
@@ -683,7 +682,7 @@ def bootstrap():
     try:
         with open(args.config or 'config.toml') as config:
             build.config_toml = config.read()
-    except:
+    except OSError:
         pass
 
     if '\nverbose = 2' in build.config_toml:

src/bootstrap/bootstrap.py

@@ -10,13 +10,13 @@ crate-type = ["dylib"]
 
 [dependencies]
 arena = { path = "../libarena" }
+bitflags = "1.0"
 fmt_macros = { path = "../libfmt_macros" }
 graphviz = { path = "../libgraphviz" }
 jobserver = "0.1"
 log = "0.3"
 owning_ref = "0.3.3"
 rustc_back = { path = "../librustc_back" }
-rustc_bitflags = { path = "../librustc_bitflags" }
 rustc_const_math = { path = "../librustc_const_math" }
 rustc_data_structures = { path = "../librustc_data_structures" }
 rustc_errors = { path = "../librustc_errors" }

src/librustc/Cargo.toml

@@ -41,6 +41,7 @@
 #![recursion_limit="256"]
 
 extern crate arena;
+#[macro_use] extern crate bitflags;
 extern crate core;
 extern crate fmt_macros;
 extern crate getopts;
@@ -56,7 +57,6 @@ extern crate rustc_errors as errors;
 #[macro_use] extern crate log;
 #[macro_use] extern crate syntax;
 extern crate syntax_pos;
-#[macro_use] #[no_link] extern crate rustc_bitflags;
 extern crate jobserver;
 
 extern crate serialize as rustc_serialize; // used by deriving

src/librustc/lib.rs

@@ -398,35 +398,35 @@ pub struct CReaderCacheKey {
 // check whether the type has various kinds of types in it without
 // recursing over the type itself.
 bitflags! {
-    flags TypeFlags: u32 {
-        const HAS_PARAMS         = 1 << 0,
-        const HAS_SELF           = 1 << 1,
-        const HAS_TY_INFER       = 1 << 2,
-        const HAS_RE_INFER       = 1 << 3,
-        const HAS_RE_SKOL        = 1 << 4,
-        const HAS_RE_EARLY_BOUND = 1 << 5,
-        const HAS_FREE_REGIONS   = 1 << 6,
-        const HAS_TY_ERR         = 1 << 7,
-        const HAS_PROJECTION     = 1 << 8,
+    pub struct TypeFlags: u32 {
+        const HAS_PARAMS         = 1 << 0;
+        const HAS_SELF           = 1 << 1;
+        const HAS_TY_INFER       = 1 << 2;
+        const HAS_RE_INFER       = 1 << 3;
+        const HAS_RE_SKOL        = 1 << 4;
+        const HAS_RE_EARLY_BOUND = 1 << 5;
+        const HAS_FREE_REGIONS   = 1 << 6;
+        const HAS_TY_ERR         = 1 << 7;
+        const HAS_PROJECTION     = 1 << 8;
 
         // FIXME: Rename this to the actual property since it's used for generators too
-        const HAS_TY_CLOSURE     = 1 << 9,
+        const HAS_TY_CLOSURE     = 1 << 9;
 
         // true if there are "names" of types and regions and so forth
         // that are local to a particular fn
-        const HAS_LOCAL_NAMES    = 1 << 10,
+        const HAS_LOCAL_NAMES    = 1 << 10;
 
         // Present if the type belongs in a local type context.
         // Only set for TyInfer other than Fresh.
-        const KEEP_IN_LOCAL_TCX  = 1 << 11,
+        const KEEP_IN_LOCAL_TCX  = 1 << 11;
 
         // Is there a projection that does not involve a bound region?
         // Currently we can't normalize projections w/ bound regions.
-        const HAS_NORMALIZABLE_PROJECTION = 1 << 12,
+        const HAS_NORMALIZABLE_PROJECTION = 1 << 12;
 
         const NEEDS_SUBST        = TypeFlags::HAS_PARAMS.bits |
                                    TypeFlags::HAS_SELF.bits |
-                                   TypeFlags::HAS_RE_EARLY_BOUND.bits,
+                                   TypeFlags::HAS_RE_EARLY_BOUND.bits;
 
         // Flags representing the nominal content of a type,
         // computed by FlagsComputation. If you add a new nominal
@@ -442,7 +442,7 @@ bitflags! {
                                   TypeFlags::HAS_PROJECTION.bits |
                                   TypeFlags::HAS_TY_CLOSURE.bits |
                                   TypeFlags::HAS_LOCAL_NAMES.bits |
-                                  TypeFlags::KEEP_IN_LOCAL_TCX.bits,
+                                  TypeFlags::KEEP_IN_LOCAL_TCX.bits;
     }
 }
 
@@ -1258,13 +1258,13 @@ pub struct Destructor {
 }
 
 bitflags! {
-    flags AdtFlags: u32 {
-        const NO_ADT_FLAGS        = 0,
-        const IS_ENUM             = 1 << 0,
-        const IS_PHANTOM_DATA     = 1 << 1,
-        const IS_FUNDAMENTAL      = 1 << 2,
-        const IS_UNION            = 1 << 3,
-        const IS_BOX              = 1 << 4,
+    pub struct AdtFlags: u32 {
+        const NO_ADT_FLAGS        = 0;
+        const IS_ENUM             = 1 << 0;
+        const IS_PHANTOM_DATA     = 1 << 1;
+        const IS_FUNDAMENTAL      = 1 << 2;
+        const IS_UNION            = 1 << 3;
+        const IS_BOX              = 1 << 4;
     }
 }
 
@@ -1357,18 +1357,18 @@ pub enum AdtKind { Struct, Union, Enum }
 
 bitflags! {
     #[derive(RustcEncodable, RustcDecodable, Default)]
-    flags ReprFlags: u8 {
-        const IS_C               = 1 << 0,
-        const IS_PACKED          = 1 << 1,
-        const IS_SIMD            = 1 << 2,
+    pub struct ReprFlags: u8 {
+        const IS_C               = 1 << 0;
+        const IS_PACKED          = 1 << 1;
+        const IS_SIMD            = 1 << 2;
         // Internal only for now. If true, don't reorder fields.
-        const IS_LINEAR          = 1 << 3,
+        const IS_LINEAR          = 1 << 3;
 
         // Any of these flags being set prevent field reordering optimisation.
         const IS_UNOPTIMISABLE   = ReprFlags::IS_C.bits |
                                    ReprFlags::IS_PACKED.bits |
                                    ReprFlags::IS_SIMD.bits |
-                                   ReprFlags::IS_LINEAR.bits,
+                                   ReprFlags::IS_LINEAR.bits;
     }
 }
 

src/librustc/ty/mod.rs

@@ -19,7 +19,6 @@ use ty::{self, AdtDef, TypeFlags, Ty, TyCtxt, TypeFoldable};
 use ty::{Slice, TyS};
 use ty::subst::Kind;
 
-use std::fmt;
 use std::iter;
 use std::cmp::Ordering;
 use syntax::abi;
@@ -577,12 +576,6 @@ impl<T> Binder<T> {
     }
 }
 
-impl fmt::Debug for TypeFlags {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:x}", self.bits)
-    }
-}
-
 /// Represents the projection of an associated type. In explicit UFCS
 /// form this would be written `<T as Trait<..>>::N`.
 #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, RustcEncodable, RustcDecodable)]

src/librustc/ty/sty.rs

@@ -8,4 +8,5 @@ name = "rustc_apfloat"
 path = "lib.rs"
 
 [dependencies]
-rustc_bitflags = { path = "../librustc_bitflags" }
+bitflags = "1.0"
+rustc_cratesio_shim = { path = "../librustc_cratesio_shim" }

src/librustc_apfloat/Cargo.toml

@@ -53,34 +53,31 @@
 #![cfg_attr(not(stage0), feature(const_min_value))]
 #![cfg_attr(not(stage0), feature(const_max_value))]
 
+// See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
+#[allow(unused_extern_crates)]
+extern crate rustc_cratesio_shim;
+
 #[macro_use]
-extern crate rustc_bitflags;
+extern crate bitflags;
 
 use std::cmp::Ordering;
 use std::fmt;
 use std::ops::{Neg, Add, Sub, Mul, Div, Rem};
-use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign, BitOrAssign};
+use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
 use std::str::FromStr;
 
 bitflags! {
     /// IEEE-754R 7: Default exception handling.
     ///
     /// UNDERFLOW or OVERFLOW are always returned or-ed with INEXACT.
     #[must_use]
-    #[derive(Debug)]
-    flags Status: u8 {
-        const OK = 0x00,
-        const INVALID_OP = 0x01,
-        const DIV_BY_ZERO = 0x02,
-        const OVERFLOW = 0x04,
-        const UNDERFLOW = 0x08,
-        const INEXACT = 0x10
-    }
-}
-
-impl BitOrAssign for Status {
-    fn bitor_assign(&mut self, rhs: Self) {
-        *self = *self | rhs;
+    pub struct Status: u8 {
+        const OK = 0x00;
+        const INVALID_OP = 0x01;
+        const DIV_BY_ZERO = 0x02;
+        const OVERFLOW = 0x04;
+        const UNDERFLOW = 0x08;
+        const INEXACT = 0x10;
     }
 }