Merge branch 'master' into wasm-language

lib/binding_rust/build.rs

@@ -17,6 +17,9 @@ fn main() {
         }
     }
 
+    #[cfg(feature = "bindgen")]
+    generate_bindings();
+
     let mut config = cc::Build::new();
 
     println!("cargo:rerun-if-env-changed=CARGO_FEATURE_WASM");
@@ -33,7 +36,8 @@ fn main() {
 
     config
         .flag_if_supported("-std=c99")
-        .flag_if_supported("-Wno-unused-parameter")
+        .flag_if_supported("-fvisibility=hidden")
+        .flag_if_supported("-Wshadow")
         .include(src_path)
         .include(src_path.join("wasm"))
         .include("include")
@@ -41,6 +45,45 @@ fn main() {
         .compile("tree-sitter");
 }
 
+#[cfg(feature = "bindgen")]
+fn generate_bindings() {
+    const HEADER_PATH: &str = "include/tree_sitter/api.h";
+
+    println!("cargo:rerun-if-changed={}", HEADER_PATH);
+
+    let no_copy = [
+        "TSInput",
+        "TSLanguage",
+        "TSLogger",
+        "TSLookaheadIterator",
+        "TSParser",
+        "TSTree",
+        "TSQuery",
+        "TSQueryCursor",
+        "TSQueryCapture",
+        "TSQueryMatch",
+        "TSQueryPredicateStep",
+    ];
+
+    let bindings = bindgen::Builder::default()
+        .header(HEADER_PATH)
+        .layout_tests(false)
+        .allowlist_type("^TS.*")
+        .allowlist_function("^ts_.*")
+        .allowlist_var("^TREE_SITTER.*")
+        .no_copy(no_copy.join("|"))
+        .prepend_enum_name(false)
+        .generate()
+        .expect("Failed to generate bindings");
+
+    let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
+    let bindings_rs = out_dir.join("bindings.rs");
+
+    bindings.write_to_file(&bindings_rs).expect(&*format!(
+        "Failed to write bindings into path: {bindings_rs:?}"
+    ));
+}
+
 fn which(exe_name: impl AsRef<Path>) -> Option<PathBuf> {
     env::var_os("PATH").and_then(|paths| {
         env::split_paths(&paths).find_map(|dir| {