Cleanup

binding-generator/src/class.rs

@@ -255,6 +255,7 @@ impl<'tu, 'ge> Class<'tu, 'ge> {
 	}
 
 	pub fn all_bases(&self) -> HashSet<Class<'tu, 'ge>> {
+		#![allow(clippy::mutable_key_type)]
 		#[allow(clippy::unnecessary_to_owned)]
 		self
 			.bases()
@@ -276,6 +277,7 @@ impl<'tu, 'ge> Class<'tu, 'ge> {
 	}
 
 	pub fn descendants(&self) -> HashSet<Class<'tu, 'ge>> {
+		#![allow(clippy::mutable_key_type)]
 		match self {
 			&Self::Clang { gen_env, .. } => gen_env
 				.descendants_of(&self.cpp_name(CppNameStyle::Reference))
@@ -287,6 +289,7 @@ impl<'tu, 'ge> Class<'tu, 'ge> {
 	}
 
 	pub fn all_descendants(&self) -> HashSet<Class<'tu, 'ge>> {
+		#![allow(clippy::mutable_key_type)]
 		self
 			.descendants()
 			.into_iter()
@@ -299,6 +302,7 @@ impl<'tu, 'ge> Class<'tu, 'ge> {
 	}
 
 	pub fn all_family(&self) -> HashSet<Class<'tu, 'ge>> {
+		#![allow(clippy::mutable_key_type)]
 		fn collect<'tu, 'ge>(out: &mut HashSet<Class<'tu, 'ge>>, cls: Class<'tu, 'ge>) {
 			if out.insert(cls.clone()) {
 				#[allow(clippy::unnecessary_to_owned)]

build.rs

@@ -27,8 +27,9 @@ mod library;
 
 type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;
 
-static MODULES: OnceCell<Vec<String>> = OnceCell::new();
+static MODULES: OnceCell<Vec<String>> = OnceCell::new(); // replace with `OnceLock` when MSRV is 1.70.0
 
+// replace `Lazy` with `LazyLock` when MSRV is 1.80.0
 static OUT_DIR: Lazy<PathBuf> = Lazy::new(|| PathBuf::from(env::var_os("OUT_DIR").expect("Can't read OUT_DIR env var")));
 static MANIFEST_DIR: Lazy<PathBuf> =
 	Lazy::new(|| PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").expect("Can't read CARGO_MANIFEST_DIR env var")));
@@ -288,6 +289,78 @@ fn build_wrapper(opencv: &Library) {
 	let mut cc = build_compiler(opencv);
 	eprintln!("=== Compiler information: {:#?}", cc.get_compiler());
 	let modules = MODULES.get().expect("MODULES not initialized");
+	static SUPPORTED_MODULES: [&str; 67] = [
+		"alphamat",
+		"aruco",
+		"aruco_detector",
+		"barcode",
+		"bgsegm",
+		"bioinspired",
+		"calib3d",
+		"ccalib",
+		"core",
+		"cudaarithm",
+		"cudabgsegm",
+		"cudacodec",
+		"cudafeatures2d",
+		"cudafilters",
+		"cudaimgproc",
+		"cudaobjdetect",
+		"cudaoptflow",
+		"cudastereo",
+		"cudawarping",
+		"cvv",
+		"dnn",
+		"dnn_superres",
+		"dpm",
+		"face",
+		"features2d",
+		"flann",
+		"freetype",
+		"fuzzy",
+		"gapi",
+		"hdf",
+		"hfs",
+		"highgui",
+		"img_hash",
+		"imgcodecs",
+		"imgproc",
+		"intensity_transform",
+		"line_descriptor",
+		"mcc",
+		"ml",
+		"objdetect",
+		"optflow",
+		"ovis",
+		"phase_unwrapping",
+		"photo",
+		"plot",
+		"quality",
+		"rapid",
+		"rgbd",
+		"saliency",
+		"sfm",
+		"shape",
+		"stereo",
+		"stitching",
+		"structured_light",
+		"superres",
+		"surface_matching",
+		"text",
+		"tracking",
+		"video",
+		"videoio",
+		"videostab",
+		"viz",
+		"wechat_qrcode",
+		"xfeatures2d",
+		"ximgproc",
+		"xobjdetect",
+		"xphoto",
+	];
+	for module in SUPPORTED_MODULES {
+		println!("cargo:rustc-check-cfg=cfg(ocvrs_has_module_{module})"); // replace with cargo:: syntax when MSRV is 1.77
+	}
 	for module in modules.iter() {
 		println!("cargo:rustc-cfg=ocvrs_has_module_{module}");
 		cc.file(OUT_DIR.join(format!("{module}.cpp")));
@@ -336,6 +409,9 @@ fn main() -> Result<()> {
 
 	let opencv = Library::probe()?;
 	eprintln!("=== OpenCV library configuration: {opencv:#?}");
+	println!("cargo:rustc-check-cfg=cfg(ocvrs_opencv_branch_4)"); // replace with cargo:: syntax when MSRV is 1.77
+	println!("cargo:rustc-check-cfg=cfg(ocvrs_opencv_branch_34)"); // replace with cargo:: syntax when MSRV is 1.77
+	println!("cargo:rustc-check-cfg=cfg(ocvrs_opencv_branch_32)"); // replace with cargo:: syntax when MSRV is 1.77
 	if OPENCV_BRANCH_4.matches(&opencv.version) {
 		println!("cargo:rustc-cfg=ocvrs_opencv_branch_4");
 	} else if OPENCV_BRANCH_34.matches(&opencv.version) {

build/generator.rs

@@ -223,7 +223,7 @@ fn collect_generated_bindings(modules: &[String], target_module_dir: &Path, manu
 		write_module_include(&mut hub_rs, module)?;
 		let module_filename = format!("{module}.rs");
 		let module_src_file = OUT_DIR.join(&module_filename);
-		let mut module_rs = BufWriter::new(File::create(&target_module_dir.join(&module_filename))?);
+		let mut module_rs = BufWriter::new(File::create(target_module_dir.join(&module_filename))?);
 		// Need to wrap modules inside `mod { }` because they have top-level comments (//!) and those don't play well when
 		// module file is include!d (as opposed to connecting the module with `mod` from the parent module).
 		// The same doesn't apply to `sys` and `types` below because they don't contain top-level comments.

src/opencv.rs

@@ -9,6 +9,7 @@
 	unused_parens
 )]
 #[allow(
+	clippy::doc_lazy_continuation,
 	clippy::double_must_use,
 	clippy::excessive_precision,
 	clippy::let_and_return,