Move to Rust edition 2021 and version 1.56

.github/workflows/clippy.yml

@@ -109,6 +109,7 @@ jobs:
           cargo clippy -p test_readme &&
           cargo clippy -p test_reserved &&
           cargo clippy -p test_resources &&
+          cargo clippy -p test_return_handle &&
           cargo clippy -p test_return_struct &&
           cargo clippy -p test_riddle &&
           cargo clippy -p test_simple_component &&

.github/workflows/test.yml

@@ -96,8 +96,8 @@ jobs:
           cargo test -p test_does_not_return &&
           cargo test -p test_enums &&
           cargo test -p test_error &&
-          cargo clean &&
           cargo test -p test_event &&
+          cargo clean &&
           cargo test -p test_extensions &&
           cargo test -p test_handles &&
           cargo test -p test_helpers &&
@@ -116,6 +116,7 @@ jobs:
           cargo test -p test_readme &&
           cargo test -p test_reserved &&
           cargo test -p test_resources &&
+          cargo test -p test_return_handle &&
           cargo test -p test_return_struct &&
           cargo test -p test_riddle &&
           cargo test -p test_simple_component &&

.github/workflows/windows-sys.yml

@@ -14,7 +14,7 @@ jobs:
     name: Check
     strategy:
       matrix:
-        rust: [1.48.0, stable, nightly]
+        rust: [1.56.0, stable, nightly]
         runs-on:
           - windows-latest
           - ubuntu-latest

.github/workflows/windows.yml

@@ -14,7 +14,7 @@ jobs:
     name: Check
     strategy:
       matrix:
-        rust: [1.48.0, stable, nightly]
+        rust: [1.56.0, stable, nightly]
         runs-on:
           - windows-2019
           - ubuntu-latest

Cargo.toml

@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 members = [
     "crates/libs/*",
     "crates/samples/windows-sys/*",

crates/libs/core/Cargo.toml

@@ -3,12 +3,12 @@
 name = "windows-core"
 version = "0.50.0"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Rust for Windows"
 repository = "https://github.com/microsoft/windows-rs"
 readme = "../../../docs/readme.md"
-rust-version = "1.48"
+rust-version = "1.56"
 categories = ["os::windows-apis"]
 
 [package.metadata.docs.rs]

crates/libs/core/src/imp/mod.rs

@@ -20,7 +20,7 @@ pub use sha1::*;
 pub use waiter::*;
 pub use weak_ref_count::*;
 
-// This is a workaround since 1.48 does not include `bool::then_some`.
+// This is a workaround since 1.56 does not include `bool::then_some`.
 pub fn then_some<T>(value: bool, t: T) -> Option<T> {
     if value {
         Some(t)
@@ -29,15 +29,6 @@ pub fn then_some<T>(value: bool, t: T) -> Option<T> {
     }
 }
 
-// This is a workaround since 1.48 does not include `bool::then`.
-pub fn then<T, F: FnOnce() -> T>(value: bool, f: F) -> Option<T> {
-    if value {
-        Some(f())
-    } else {
-        None
-    }
-}
-
 pub fn wide_trim_end(mut wide: &[u16]) -> &[u16] {
     while let Some(last) = wide.last() {
         match last {

crates/libs/core/src/strings/hstring.rs

@@ -84,8 +84,7 @@ impl HSTRING {
 
     fn get_header(&self) -> Option<&Header> {
         if let Some(header) = &self.0 {
-            // TODO: this can be replaced with `as_ref` in future: https://github.com/rust-lang/rust/issues/91822
-            unsafe { Some(&*(header.as_ptr() as *const Header)) }
+            unsafe { Some(header.as_ref()) }
         } else {
             None
         }

crates/libs/implement/Cargo.toml

@@ -2,7 +2,7 @@
 name = "windows-implement"
 version = "0.48.0"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "The implement macro for the windows crate"
 repository = "https://github.com/microsoft/windows-rs"

crates/libs/implement/src/lib.rs

@@ -81,7 +81,7 @@ pub fn implement(attributes: proc_macro::TokenStream, original_type: proc_macro:
 
     let tokens = quote! {
         #[repr(C)]
-        struct #impl_ident#generics where #constraints {
+        struct #impl_ident #generics where #constraints {
             identity: *const ::windows::core::IInspectable_Vtbl,
             vtables: (#(*const #vtbl_idents,)*),
              this: #original_ident::#generics,

crates/libs/interface/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "windows-interface"
 version = "0.48.0"
-edition = "2018"
+edition = "2021"
 authors = ["Microsoft"]
 license = "MIT OR Apache-2.0"
 description = "The interface macro for the windows crate"

crates/libs/metadata/Cargo.toml

@@ -2,7 +2,7 @@
 name = "windows-metadata"
 version = "0.49.0"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Windows metadata reader and writer"
 repository = "https://github.com/microsoft/windows-rs"

crates/libs/sys/Cargo.toml

@@ -3,12 +3,12 @@
 name = "windows-sys"
 version = "0.48.0"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Rust for Windows"
 repository = "https://github.com/microsoft/windows-rs"
 readme = "../../../docs/readme.md"
-rust-version = "1.48"
+rust-version = "1.56"
 categories = ["os::windows-apis"]
 
 [package.metadata.docs.rs]

crates/libs/targets/Cargo.toml

@@ -3,7 +3,7 @@
 name = "windows-targets"
 version = "0.48.1"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Import libs for Windows"
 repository = "https://github.com/microsoft/windows-rs"

crates/libs/windows/Cargo.toml

@@ -3,13 +3,13 @@
 name = "windows"
 version = "0.48.0"
 authors = ["Microsoft"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Rust for Windows"
 repository = "https://github.com/microsoft/windows-rs"
 documentation = "https://microsoft.github.io/windows-docs-rs/"
 readme = "../../../docs/readme.md"
-rust-version = "1.48"
+rust-version = "1.56"
 categories = ["os::windows-apis"]
 
 [package.metadata.docs.rs]

crates/libs/windows/src/Windows/Win32/Devices/AllJoyn/mod.rs

@@ -30,7 +30,7 @@ where
 {
     ::windows_targets::link!("msajapi.dll" "system" fn AllJoynConnectToBus(connectionspec : ::windows_core::PCWSTR) -> super::super::Foundation:: HANDLE);
     let result__ = AllJoynConnectToBus(connectionspec.into_param().abi());
-    ::windows_core::imp::then(!result__.is_invalid(), || result__).ok_or_else(::windows_core::Error::from_win32)
+    (!result__.is_invalid()).then(|| result__).ok_or_else(::windows_core::Error::from_win32)
 }
 #[doc = "*Required features: `\"Win32_Devices_AllJoyn\"`, `\"Win32_Foundation\"`, `\"Win32_Security\"`*"]
 #[cfg(all(feature = "Win32_Foundation", feature = "Win32_Security"))]

crates/libs/windows/src/Windows/Win32/Devices/Bluetooth/mod.rs

@@ -91,15 +91,15 @@ where
 pub unsafe fn BluetoothFindFirstDevice(pbtsp: *const BLUETOOTH_DEVICE_SEARCH_PARAMS, pbtdi: *mut BLUETOOTH_DEVICE_INFO) -> ::windows_core::Result<HBLUETOOTH_DEVICE_FIND> {
     ::windows_targets::link!("bluetoothapis.dll" "system" fn BluetoothFindFirstDevice(pbtsp : *const BLUETOOTH_DEVICE_SEARCH_PARAMS, pbtdi : *mut BLUETOOTH_DEVICE_INFO) -> HBLUETOOTH_DEVICE_FIND);
     let result__ = BluetoothFindFirstDevice(pbtsp, pbtdi);
-    ::windows_core::imp::then(!result__.is_invalid(), || result__).ok_or_else(::windows_core::Error::from_win32)
+    (!result__.is_invalid()).then(|| result__).ok_or_else(::windows_core::Error::from_win32)
 }
 #[doc = "*Required features: `\"Win32_Devices_Bluetooth\"`, `\"Win32_Foundation\"`*"]
 #[cfg(feature = "Win32_Foundation")]
 #[inline]
 pub unsafe fn BluetoothFindFirstRadio(pbtfrp: *const BLUETOOTH_FIND_RADIO_PARAMS, phradio: *mut super::super::Foundation::HANDLE) -> ::windows_core::Result<HBLUETOOTH_RADIO_FIND> {
     ::windows_targets::link!("bluetoothapis.dll" "system" fn BluetoothFindFirstRadio(pbtfrp : *const BLUETOOTH_FIND_RADIO_PARAMS, phradio : *mut super::super::Foundation:: HANDLE) -> HBLUETOOTH_RADIO_FIND);
     let result__ = BluetoothFindFirstRadio(pbtfrp, phradio);
-    ::windows_core::imp::then(!result__.is_invalid(), || result__).ok_or_else(::windows_core::Error::from_win32)
+    (!result__.is_invalid()).then(|| result__).ok_or_else(::windows_core::Error::from_win32)
 }
 #[doc = "*Required features: `\"Win32_Devices_Bluetooth\"`, `\"Win32_Foundation\"`*"]
 #[cfg(feature = "Win32_Foundation")]