Merge pull request #149 from madsmtm/feature-cleanup

Cargo features cleanup

.github/workflows/ci.yml

@@ -14,8 +14,6 @@ env:
   RUSTFLAGS: "-C debuginfo=0 -D warnings"
   RUSTDOCFLAGS: "-D warnings"
   CARGO_TERM_VERBOSE: true
-  FEATURES: malloc,block,exception,catch_all,verify_message
-  UNSTABLE_FEATURES: unstable_autoreleasesafe
   MACOSX_DEPLOYMENT_TARGET: 10.7
   IPHONEOS_DEPLOYMENT_TARGET: 7.0
   # We only support compiling Objective-C code with clang
@@ -125,6 +123,13 @@ jobs:
               components: rust-src
             args: -Zbuild-std -Zdoctest-xcompile
             test-args: --no-run
+          - name: Test Compiler-RT
+            os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            runtime: compiler-rt
+            args: -p block-sys -p block2
+            features: ' '
+            unstable-features: ' '
 
     env:
       CARGO_BUILD_TARGET: ${{ matrix.target }}
@@ -136,6 +141,8 @@ jobs:
       ARGS: --no-default-features --features ${{ matrix.runtime || 'apple' }} ${{ matrix.args }}
       # Use --no-fail-fast, except with dinghy
       TESTARGS: ${{ matrix.dinghy && ' ' || '--no-fail-fast' }} ${{ matrix.test-args }}
+      FEATURES: ${{ matrix.features || 'malloc,block,exception,catch_all,verify_message' }}
+      UNSTABLE_FEATURES: ${{ matrix.unstable-features || 'unstable-autoreleasesafe' }}
 
     runs-on: ${{ matrix.os }}
 
@@ -195,6 +202,10 @@ jobs:
         sudo apt-get update
         sudo apt-get -y install clang valgrind
 
+    - name: Install libBlocksRuntime
+      if: contains(matrix.runtime, 'compiler-rt')
+      run: sudo apt-get -y install libblocksruntime-dev
+
     - name: Install cross compilation tools
       if: matrix.target == 'i686-unknown-linux-gnu'
       run: |
@@ -220,11 +231,11 @@ jobs:
         mv MacOSX${{ matrix.sdk }}.sdk $HOME/extern/sdk
 
     - name: Install Make and Cmake
-      if: contains(matrix.os, 'ubuntu') && steps.extern-cache.outputs.cache-hit != 'true'
+      if: contains(matrix.runtime, 'gnustep') && steps.extern-cache.outputs.cache-hit != 'true'
       run: sudo apt-get -y install make cmake
 
     - name: Install GNUStep libobjc2 v1.9
-      if: contains(matrix.os, 'ubuntu') && steps.extern-cache.outputs.cache-hit != 'true'
+      if: contains(matrix.runtime, 'gnustep') && steps.extern-cache.outputs.cache-hit != 'true'
       run: |
         wget https://github.com/gnustep/libobjc2/archive/refs/tags/v1.9.tar.gz
         tar -xzf v1.9.tar.gz
@@ -234,7 +245,7 @@ jobs:
         make install
 
     - name: Install GNUStep make
-      if: contains(matrix.os, 'ubuntu') && steps.extern-cache.outputs.cache-hit != 'true'
+      if: contains(matrix.runtime, 'gnustep') && steps.extern-cache.outputs.cache-hit != 'true'
       run: |
         wget https://github.com/gnustep/tools-make/archive/refs/tags/make-2_9_0.tar.gz
         tar -xzf make-2_9_0.tar.gz
@@ -244,7 +255,7 @@ jobs:
         make install
 
     - name: Install GNUStep-Base
-      if: contains(matrix.os, 'ubuntu') && steps.extern-cache.outputs.cache-hit != 'true'
+      if: contains(matrix.runtime, 'gnustep') && steps.extern-cache.outputs.cache-hit != 'true'
       run: |
         wget https://github.com/gnustep/libs-base/archive/refs/tags/base-1_28_0.tar.gz
         tar -xzf base-1_28_0.tar.gz
@@ -326,7 +337,7 @@ jobs:
       uses: actions-rs/cargo@v1
       with:
         command: bench
-        args: ${{ env.ARGS }} ${{ env.TESTARGS }} --bench autorelease
+        args: ${{ env.ARGS }} ${{ env.TESTARGS }}
 
     - name: Test with unstable features
       if: ${{ !matrix.dinghy && matrix.rust.toolchain == 'nightly' }}

block-sys/Cargo.toml

@@ -41,10 +41,10 @@ gnustep-2-0 = ["objc-sys/gnustep-2-0", "gnustep-1-9"]
 gnustep-2-1 = ["objc-sys/gnustep-2-1", "gnustep-2-0"]
 
 # Link to Microsoft's libobjc2
-winobjc = ["objc-sys/winobjc", "gnustep-1-8"]
+unstable-winobjc = ["objc-sys/unstable-winobjc", "gnustep-1-8"]
 
-# TODO
-objfw = []
+# Link to ObjFW
+unstable-objfw = []
 
 [dependencies]
 objc-sys = { path = "../objc-sys", version = "=0.2.0-alpha.1", default-features = false, optional = true }

block-sys/README.md

@@ -73,15 +73,19 @@ Sources:
 
 ### Microsoft's [`WinObjC`](https://github.com/microsoft/WinObjC)
 
-- Feature flag: `winobjc`.
+- Feature flag: `unstable-winobjc`.
+
+**Unstable: Hasn't been tested on Windows yet!**
 
 Essentially just [a fork](https://github.com/microsoft/libobjc2) based on
 GNUStep's `libobjc2` version 1.8.
 
 
-### [`ObjFW`](https://github.com/ObjFW/ObjFW) (WIP)
+### [`ObjFW`](https://github.com/ObjFW/ObjFW)
+
+- Feature flag: `unstable-objfw`.
 
-- Feature flag: `objfw`.
+**Unstable: Doesn't work yet!**
 
 TODO.
 

block-sys/build.rs

@@ -10,7 +10,7 @@ fn main() {
     let mut apple = env::var_os("CARGO_FEATURE_APPLE").is_some();
     let compiler_rt = env::var_os("CARGO_FEATURE_COMPILER_RT").is_some();
     let mut gnustep = env::var_os("CARGO_FEATURE_GNUSTEP_1_7").is_some();
-    let objfw = env::var_os("CARGO_FEATURE_OBJFW").is_some();
+    let objfw = env::var_os("CARGO_FEATURE_UNSTABLE_OBJFW").is_some();
 
     if std::env::var("DOCS_RS").is_ok() {
         if let "macos" | "ios" | "tvos" | "watchos" = &*target_os {

block2/Cargo.toml

@@ -28,7 +28,6 @@ gnustep-1-8 = ["gnustep-1-7", "block-sys/gnustep-1-8"]
 gnustep-1-9 = ["gnustep-1-8", "block-sys/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "block-sys/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "block-sys/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "block-sys/winobjc"]
 
 [dependencies]
 objc2-encode = { path = "../objc2-encode", version = "=2.0.0-beta.2", default-features = false }

objc-sys/Cargo.toml

@@ -40,12 +40,12 @@ gnustep-2-0 = ["gnustep-1-9"]
 gnustep-2-1 = ["gnustep-2-0"]
 
 # Link to Microsoft's libobjc2
-winobjc = ["gnustep-1-8"]
+unstable-winobjc = ["gnustep-1-8"]
 
-# TODO
-objfw = []
+# Link to ObjFW
+unstable-objfw = []
 
-# Private/unstable features - must not be relied on!
+# Private
 unstable-exception = ["cc"]
 
 [build-dependencies]

objc-sys/README.md

@@ -56,17 +56,21 @@ chosen using the standard `X_DEPLOYMENT_TARGET` environment variables:
   `gnustep-1-8`.
 
 
-### Window's [`WinObjC`](https://github.com/microsoft/WinObjC)
+### Microsoft's [`WinObjC`](https://github.com/microsoft/WinObjC)
 
-- Feature flag: `winobjc`.
+- Feature flag: `unstable-winobjc`.
+
+**Unstable: Hasn't been tested on Windows yet!**
 
 This is essentially just [a fork](https://github.com/microsoft/libobjc2) based
 on GNUStep's `libobjc2` version 1.8, with very few user-facing changes.
 
 
-### [`ObjFW`](https://github.com/ObjFW/ObjFW) (WIP)
+### [`ObjFW`](https://github.com/ObjFW/ObjFW)
+
+- Feature flag: `unstable-objfw`.
 
-- Feature flag: `objfw`.
+**Unstable: Doesn't work yet!**
 
 TODO.
 
@@ -79,7 +83,7 @@ and `objc_autoreleasePoolPop` is a vital requirement for most applications.
 
 Just so we're being clear, this rules out the GCC [`libobjc`][gcc-libobjc]
 runtime (see [this][gcc-objc-support]), the [`mulle-objc`] runtime and
-[cocotron]. (But support for [`ObjFW`] and [`darling`] may be added).
+[cocotron]. (But support for [`darling`] may be added).
 More information on different runtimes can be found in GNUStep's
 [Objective-C Compiler and Runtime FAQ][gnustep-faq].
 
@@ -88,7 +92,6 @@ More information on different runtimes can be found in GNUStep's
 [gcc-objc-support]: https://gcc.gnu.org/onlinedocs/gcc/Standards.html#Objective-C-and-Objective-C_002b_002b-Languages
 [`mulle-objc`]: https://github.com/mulle-objc/mulle-objc-runtime
 [cocotron]: https://cocotron.org/
-[`ObjFW`]: https://github.com/ObjFW/ObjFW
 [`darling`]: https://github.com/darlinghq/darling-objc4
 [gnustep-faq]: http://wiki.gnustep.org/index.php/Objective-C_Compiler_and_Runtime_FAQ
 

objc-sys/build.rs

@@ -71,7 +71,7 @@ fn main() {
 
     let mut apple = env::var_os("CARGO_FEATURE_APPLE").is_some();
     let mut gnustep = env::var_os("CARGO_FEATURE_GNUSTEP_1_7").is_some();
-    let objfw = env::var_os("CARGO_FEATURE_OBJFW").is_some();
+    let objfw = env::var_os("CARGO_FEATURE_UNSTABLE_OBJFW").is_some();
 
     // Choose defaults when generating docs
     if std::env::var("DOCS_RS").is_ok() {
@@ -106,7 +106,7 @@ fn main() {
                 } else {
                     GNUStep(1, 7)
                 }
-            } else if env::var_os("CARGO_FEATURE_WINOBJC").is_some() {
+            } else if env::var_os("CARGO_FEATURE_UNSTABLE_WINOBJC").is_some() {
                 WinObjC
             } else if env::var_os("CARGO_FEATURE_GNUSTEP_2_1").is_some() {
                 GNUStep(2, 1)

objc-sys/src/exception.rs

@@ -61,7 +61,7 @@ extern_c! {
     // objc_exception_get_functions
     // objc_exception_set_functions
 
-    #[cfg(any(gnustep, winobjc))]
+    #[cfg(gnustep)]
     pub fn objc_exception_rethrow(exc_buf: *mut c_void) -> !;
 
     #[cfg(apple_new)]

objc2-foundation/Cargo.toml

@@ -28,7 +28,6 @@ gnustep-1-8 = ["gnustep-1-7", "objc2/gnustep-1-8", "block2?/gnustep-1-8"]
 gnustep-1-9 = ["gnustep-1-8", "objc2/gnustep-1-9", "block2?/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "objc2/gnustep-2-0", "block2?/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "objc2/gnustep-2-1", "block2?/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "objc2/winobjc", "block2?/winobjc"]
 
 [dependencies]
 block2 = { path = "../block2", version = "=0.2.0-alpha.3", default-features = false, optional = true }

objc2/Cargo.toml

@@ -38,7 +38,7 @@ verify_message = ["malloc"] # TODO: Remove malloc feature here
 malloc = ["malloc_buf"]
 
 # Uses nightly features to make AutoreleasePool zero-cost even in debug mode
-unstable_autoreleasesafe = []
+unstable-autoreleasesafe = []
 
 # Runtime selection. See `objc-sys` for details.
 apple = ["objc-sys/apple"]
@@ -47,7 +47,6 @@ gnustep-1-8 = ["gnustep-1-7", "objc-sys/gnustep-1-8"]
 gnustep-1-9 = ["gnustep-1-8", "objc-sys/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "objc-sys/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "objc-sys/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "objc-sys/winobjc"]
 
 [dependencies]
 malloc_buf = { version = "1.0", optional = true }

objc2/src/lib.rs

@@ -122,7 +122,7 @@
 
 #![no_std]
 #![cfg_attr(
-    feature = "unstable_autoreleasesafe",
+    feature = "unstable-autoreleasesafe",
     feature(negative_impls, auto_traits)
 )]
 #![warn(elided_lifetimes_in_paths)]

objc2/src/rc/autorelease.rs

@@ -2,7 +2,7 @@ use core::cell::UnsafeCell;
 use core::ffi::c_void;
 use core::fmt;
 use core::marker::PhantomData;
-#[cfg(all(debug_assertions, not(feature = "unstable_autoreleasesafe")))]
+#[cfg(all(debug_assertions, not(feature = "unstable-autoreleasesafe")))]
 use std::{cell::RefCell, thread_local, vec::Vec};
 
 use crate::ffi;
@@ -25,7 +25,7 @@ pub struct AutoreleasePool {
     p: PhantomData<*mut UnsafeCell<c_void>>,
 }
 
-#[cfg(all(debug_assertions, not(feature = "unstable_autoreleasesafe")))]
+#[cfg(all(debug_assertions, not(feature = "unstable-autoreleasesafe")))]
 thread_local! {
     /// We track the thread's pools to verify that object lifetimes are only
     /// taken from the innermost pool.
@@ -49,7 +49,7 @@ impl AutoreleasePool {
     unsafe fn new() -> Self {
         // TODO: Make this function pub when we're more certain of the API
         let context = unsafe { ffi::objc_autoreleasePoolPush() };
-        #[cfg(all(debug_assertions, not(feature = "unstable_autoreleasesafe")))]
+        #[cfg(all(debug_assertions, not(feature = "unstable-autoreleasesafe")))]
         POOLS.with(|c| c.borrow_mut().push(context));
         Self {
             context,
@@ -61,7 +61,7 @@ impl AutoreleasePool {
     #[inline]
     #[doc(hidden)]
     pub fn __verify_is_inner(&self) {
-        #[cfg(all(debug_assertions, not(feature = "unstable_autoreleasesafe")))]
+        #[cfg(all(debug_assertions, not(feature = "unstable-autoreleasesafe")))]
         POOLS.with(|c| {
             assert_eq!(
                 c.borrow().last(),
@@ -140,7 +140,7 @@ impl Drop for AutoreleasePool {
     #[inline]
     fn drop(&mut self) {
         unsafe { ffi::objc_autoreleasePoolPop(self.context) }
-        #[cfg(all(debug_assertions, not(feature = "unstable_autoreleasesafe")))]
+        #[cfg(all(debug_assertions, not(feature = "unstable-autoreleasesafe")))]
         POOLS.with(|c| {
             assert_eq!(
                 c.borrow_mut().pop(),
@@ -159,15 +159,15 @@ impl fmt::Pointer for AutoreleasePool {
 
 /// We use a macro here so that the documentation is included whether the
 /// feature is enabled or not.
-#[cfg(not(feature = "unstable_autoreleasesafe"))]
+#[cfg(not(feature = "unstable-autoreleasesafe"))]
 macro_rules! auto_trait {
     {$(#[$fn_meta:meta])* $v:vis unsafe trait AutoreleaseSafe {}} => {
         $(#[$fn_meta])*
         $v unsafe trait AutoreleaseSafe {}
     }
 }
 
-#[cfg(feature = "unstable_autoreleasesafe")]
+#[cfg(feature = "unstable-autoreleasesafe")]
 macro_rules! auto_trait {
     {$(#[$fn_meta:meta])* $v:vis unsafe trait AutoreleaseSafe {}} => {
         $(#[$fn_meta])*
@@ -179,7 +179,7 @@ auto_trait! {
     /// Marks types that are safe to pass across the closure in an
     /// [`autoreleasepool`].
     ///
-    /// With the `unstable_autoreleasesafe` feature enabled, this is an auto
+    /// With the `unstable-autoreleasesafe` feature enabled, this is an auto
     /// trait that is implemented for all types except [`AutoreleasePool`].
     ///
     /// Otherwise it is just a dummy trait that is implemented for all types;
@@ -194,14 +194,14 @@ auto_trait! {
     /// likewise, this should be negatively implemented for that.
     ///
     /// This can easily be accomplished with an `PhantomData<AutoreleasePool>`
-    /// if the `unstable_autoreleasesafe` feature is enabled.
+    /// if the `unstable-autoreleasesafe` feature is enabled.
     pub unsafe trait AutoreleaseSafe {}
 }
 
-#[cfg(not(feature = "unstable_autoreleasesafe"))]
+#[cfg(not(feature = "unstable-autoreleasesafe"))]
 unsafe impl<T: ?Sized> AutoreleaseSafe for T {}
 
-#[cfg(feature = "unstable_autoreleasesafe")]
+#[cfg(feature = "unstable-autoreleasesafe")]
 impl !AutoreleaseSafe for AutoreleasePool {}
 
 /// Execute `f` in the context of a new autorelease pool. The pool is
@@ -216,7 +216,7 @@ impl !AutoreleaseSafe for AutoreleasePool {}
 /// The given reference must not be used in an inner `autoreleasepool`,
 /// doing so will panic with debug assertions enabled, and be a compile
 /// error in a future release. You can test the compile error with the
-/// `unstable_autoreleasesafe` crate feature on nightly Rust.
+/// `unstable-autoreleasesafe` crate feature on nightly Rust.
 ///
 /// # Examples
 ///
@@ -266,8 +266,8 @@ impl !AutoreleaseSafe for AutoreleasePool {}
 /// Incorrect usage which panics (with debug assertions enabled) because we
 /// tried to pass an outer pool to an inner pool:
 ///
-#[cfg_attr(feature = "unstable_autoreleasesafe", doc = "```compile_fail")]
-#[cfg_attr(not(feature = "unstable_autoreleasesafe"), doc = "```should_panic")]
+#[cfg_attr(feature = "unstable-autoreleasesafe", doc = "```compile_fail")]
+#[cfg_attr(not(feature = "unstable-autoreleasesafe"), doc = "```should_panic")]
 /// # use objc2::{class, msg_send};
 /// # use objc2::rc::{autoreleasepool, AutoreleasePool};
 /// # use objc2::runtime::Object;
@@ -300,7 +300,7 @@ where
     f(&pool)
 }
 
-#[cfg(all(test, feature = "unstable_autoreleasesafe"))]
+#[cfg(all(test, feature = "unstable-autoreleasesafe"))]
 mod tests {
     use super::AutoreleaseSafe;
     use crate::runtime::Object;

tests/Cargo.toml

@@ -29,7 +29,6 @@ gnustep-1-8 = ["gnustep-1-7", "block2/gnustep-1-8", "objc2-foundation/gnustep-1-
 gnustep-1-9 = ["gnustep-1-8", "block2/gnustep-1-9", "objc2-foundation/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "block2/gnustep-2-0", "objc2-foundation/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "block2/gnustep-2-1", "objc2-foundation/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "block2/winobjc", "objc2-foundation/winobjc"]
 
 malloc = ["objc2/malloc"]
 

tests/assembly/test_msg_send_zero_cost/Cargo.toml

@@ -19,4 +19,3 @@ gnustep-1-8 = ["gnustep-1-7", "objc2/gnustep-1-8"]
 gnustep-1-9 = ["gnustep-1-8", "objc2/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "objc2/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "objc2/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "objc2/winobjc"]

tests/assembly/test_retain_autoreleased/Cargo.toml

@@ -19,4 +19,3 @@ gnustep-1-8 = ["gnustep-1-7", "objc2/gnustep-1-8"]
 gnustep-1-9 = ["gnustep-1-8", "objc2/gnustep-1-9"]
 gnustep-2-0 = ["gnustep-1-9", "objc2/gnustep-2-0"]
 gnustep-2-1 = ["gnustep-2-0", "objc2/gnustep-2-1"]
-winobjc = ["gnustep-1-8", "objc2/winobjc"]