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Remove libstd from objc-sys and block-sys #305

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Remove libstd from objc-sys and block-sys #305

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76a54d0
Remove libstd from objc-sys and block-sys
notgull Dec 17, 2022
bc685e2
Fix block-sys tests
notgull Dec 17, 2022
2ae898d
Add no_std to CI
notgull Dec 17, 2022
739726a
Forgot to add std extern conditional for objc-sys
notgull Dec 17, 2022
f9a1957
Fix CI error
notgull Dec 17, 2022
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6 changes: 6 additions & 0 deletions .github/workflows/ci.yml
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Expand Up @@ -156,6 +156,7 @@ jobs:
CXXFLAGS: ${{ matrix.cflags }}
ASMFLAGS: ${{ matrix.cflags }}
LDFLAGS: ${{ matrix.cflags }}
NDF_ARGS: --no-default-features --features=${{ matrix.runtime || 'apple' }} ${{ matrix.args }}
ARGS: --no-default-features --features=std,${{ matrix.runtime || 'apple' }} ${{ matrix.args }}
# Use --no-fail-fast, except with dinghy
TESTARGS: ${{ matrix.dinghy && ' ' || '--no-fail-fast' }} ${{ matrix.test-args }}
Expand Down Expand Up @@ -369,6 +370,11 @@ jobs:
- name: Build
run: $CMD build ${{ env.ARGS }}

- name: Build objc-sys/block-sys with no_std
run: |
$CMD build ${{ env.NDF_ARGS }} -p objc-sys
$CMD build ${{ env.NDF_ARGS }} -p block-sys

- name: Check documentation
run: $CMD doc ${{ env.ARGS }} --no-deps --document-private-items

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9 changes: 3 additions & 6 deletions crates/block-sys/src/lib.rs
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Expand Up @@ -24,11 +24,9 @@
#![cfg_attr(feature = "unstable-docsrs", feature(doc_auto_cfg, doc_cfg_hide))]
#![cfg_attr(feature = "unstable-docsrs", doc(cfg_hide(doc)))]

#[cfg(feature = "std")]
extern crate std;

#[cfg(not(feature = "std"))]
compile_error!("The `std` feature currently must be enabled.");

Comment on lines +27 to -31
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Please do roughly the same setup as I did in this PR to the url project (for both alloc and std, since neither are required).

// Ensure linkage actually happens
#[cfg(feature = "gnustep-1-7")]
extern crate objc_sys as _;
Expand All @@ -38,9 +36,8 @@ extern crate objc_sys as _;
extern "C" {}

use core::cell::UnsafeCell;
use core::ffi::c_void;
use core::ffi::{c_char, c_ulong, c_void};
use core::marker::{PhantomData, PhantomPinned};
use std::os::raw::{c_char, c_ulong};

#[repr(C)]
pub struct Class {
Expand Down Expand Up @@ -415,7 +412,7 @@ pub struct Block_byref_extended {
pub layout: *const c_char,
}

#[cfg(test)]
#[cfg(all(test, feature = "std"))]
mod tests {
use super::*;
use core::ptr;
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1 change: 0 additions & 1 deletion crates/objc-sys/Cargo.toml
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Expand Up @@ -29,7 +29,6 @@ build = "build.rs"
# correct feature flag is not specified.
default = ["std", "apple"]

# Currently not possible to turn off, put here for forwards compatibility.
std = ["alloc"]
alloc = []

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2 changes: 1 addition & 1 deletion crates/objc-sys/src/class.rs
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@@ -1,4 +1,4 @@
use std::os::raw::{c_char, c_int, c_uint};
use core::ffi::{c_char, c_int, c_uint};

#[cfg(any(doc, not(objfw)))]
use crate::{objc_ivar, objc_method, objc_object, objc_property, objc_property_attribute_t};
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2 changes: 1 addition & 1 deletion crates/objc-sys/src/constants.rs
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@@ -1,7 +1,7 @@
//! Various common #defines and enum constants.

#[cfg(any(doc, apple))]
use std::os::raw::c_int;
use core::ffi::c_int;

use crate::{id, objc_class, BOOL};

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6 changes: 3 additions & 3 deletions crates/objc-sys/src/exception.rs
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Expand Up @@ -2,11 +2,11 @@
//! Apple: `objc-exception.h`
//! GNUStep: `eh_personality.c`, which is a bit brittle to rely on, but I
//! think it's fine...
use core::ffi::c_void;
#[cfg(any(doc, apple_new))]
use std::os::raw::c_int;
use core::ffi::c_int;
#[cfg(feature = "unstable-exception")]
use std::os::raw::c_uchar;
use core::ffi::c_uchar;
use core::ffi::c_void;

#[cfg(any(doc, apple_new))]
use crate::objc_class;
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7 changes: 1 addition & 6 deletions crates/objc-sys/src/lib.rs
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Expand Up @@ -29,14 +29,9 @@
#![cfg_attr(feature = "unstable-docsrs", feature(doc_auto_cfg, doc_cfg_hide))]
#![cfg_attr(feature = "unstable-docsrs", doc(cfg_hide(doc)))]

// TODO: Remove this and add "no-std" category to Cargo.toml
// Requires a better solution for C-types in `no_std` crates.
// See https://github.com/japaric/cty/issues/14.
#[cfg(feature = "std")]
extern crate std;

#[cfg(not(feature = "std"))]
compile_error!("The `std` feature currently must be enabled.");

#[cfg(doctest)]
#[doc = include_str!("../README.md")]
extern "C" {}
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4 changes: 2 additions & 2 deletions crates/objc-sys/src/method.rs
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@@ -1,6 +1,6 @@
use std::os::raw::c_char;
use core::ffi::c_char;
#[cfg(any(doc, not(objfw)))]
use std::os::raw::c_uint;
use core::ffi::c_uint;

#[cfg(any(doc, not(objfw)))]
use crate::IMP;
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2 changes: 1 addition & 1 deletion crates/objc-sys/src/object.rs
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@@ -1,6 +1,6 @@
use core::ffi::c_char;
#[cfg(any(doc, not(objfw)))]
use core::ffi::c_void;
use std::os::raw::c_char;

#[cfg(any(doc, not(objfw)))]
use crate::objc_ivar;
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4 changes: 2 additions & 2 deletions crates/objc-sys/src/property.rs
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@@ -1,6 +1,6 @@
use std::os::raw::c_char;
use core::ffi::c_char;
#[cfg(any(doc, not(objfw)))]
use std::os::raw::c_uint;
use core::ffi::c_uint;

use crate::OpaqueData;

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4 changes: 2 additions & 2 deletions crates/objc-sys/src/protocol.rs
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@@ -1,6 +1,6 @@
use std::os::raw::c_char;
use core::ffi::c_char;
#[cfg(any(doc, not(objfw)))]
use std::os::raw::c_uint;
use core::ffi::c_uint;

#[cfg(any(doc, not(objfw)))]
use crate::{objc_method_description, objc_property, objc_property_attribute_t, objc_selector};
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2 changes: 1 addition & 1 deletion crates/objc-sys/src/selector.rs
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@@ -1,4 +1,4 @@
use std::os::raw::c_char;
use core::ffi::c_char;

use crate::{OpaqueData, BOOL};

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2 changes: 1 addition & 1 deletion crates/objc-sys/src/types.rs
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Expand Up @@ -45,7 +45,7 @@ mod inner {
mod inner {
// windows && !32bit-MinGW
#[cfg(all(windows, not(all(target_pointer_width = "64", target_env = "gnu"))))]
pub(crate) type BOOL = std::os::raw::c_int;
pub(crate) type BOOL = core::ffi::c_int;

// The inverse
#[cfg(not(all(windows, not(all(target_pointer_width = "64", target_env = "gnu")))))]
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8 changes: 4 additions & 4 deletions crates/objc-sys/src/various.rs
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@@ -1,9 +1,9 @@
use core::ffi::c_void;
#[cfg(any(doc, not(objfw)))]
use std::os::raw::c_char;
use std::os::raw::c_int;
use core::ffi::c_char;
use core::ffi::c_int;
#[cfg(any(doc, apple))]
use std::os::raw::c_uint;
use core::ffi::c_uint;
use core::ffi::c_void;

#[cfg(any(doc, not(objfw)))]
use crate::{objc_AssociationPolicy, BOOL};
Expand Down