Support iOS

.github/workflows/gen_bind.yml

@@ -28,6 +28,12 @@ jobs:
             triple: x86_64-apple-darwin
           - os: macos-latest
             triple: aarch64-apple-darwin
+          - os: macos-latest
+            triple: aarch64-apple-ios
+          - os: macos-latest
+            triple: aarch64-apple-ios-sim
+          - os: macos-latest
+            triple: x86_64-apple-ios
     runs-on: ${{ matrix.target.os }}
     steps:
       - uses: actions/checkout@v3

.github/workflows/test.yml

@@ -61,6 +61,12 @@ jobs:
             target: aarch64-apple-darwin
           - os: macos-latest
             target: x86_64-apple-darwin
+          - os: macos-latest
+            target: aarch64-apple-ios
+          - os: macos-latest
+            target: aarch64-apple-ios-sim
+          - os: macos-latest
+            target: x86_64-apple-ios
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2

crates/open_jtalk-sys/build.rs

@@ -1,7 +1,12 @@
-use std::{env, path::Path};
+use std::{
+    env,
+    path::{Path, PathBuf},
+    process::Command,
+};
 fn main() {
     let mut cmake_conf = cmake::Config::new("open_jtalk");
     let target = env::var("TARGET").unwrap();
+    let mut include_dirs: Vec<PathBuf> = Vec::new();
     let cmake_conf = if target.starts_with("i686") {
         let cmake_conf = cmake_conf.define("OPEN_JTALK_X86", "true");
 
@@ -26,21 +31,58 @@ fn main() {
         cmake_conf.define("CMAKE_SYSTEM_VERSION", "1");
     }
 
+    // iOS SDKで必要な引数を指定する
+    if target.contains("ios") {
+        // iOSとiPhone simulatorは別扱いになる
+        let sdk = if target.ends_with("sim") || target.starts_with("x86_64") {
+            "iphonesimulator"
+        } else {
+            "iphoneos"
+        };
+        let cmake_osx_sysroot = Command::new("xcrun")
+            .args(["--sdk", sdk, "--show-sdk-path"])
+            .output()
+            .expect("Failed to run xcrun command");
+        let cmake_osx_sysroot = String::from_utf8_lossy(&cmake_osx_sysroot.stdout)
+            .trim()
+            .to_string();
+        cmake_conf.define("CMAKE_OSX_SYSROOT", &cmake_osx_sysroot);
+        // x86_64アーキテクチャのiPhoneシミュレータではC++のヘッダーのパスが通っていないので、通す
+        if target.starts_with("x86_64") {
+            let include_dir = PathBuf::from(&cmake_osx_sysroot)
+                .join("usr")
+                .join("include")
+                .join("c++")
+                .join("v1");
+            include_dirs.push(include_dir);
+        }
+    }
+
     let dst_dir = cmake_conf.build();
     let lib_dir = dst_dir.join("lib");
     println!("cargo:rustc-link-search={}", lib_dir.display());
     println!("cargo:rustc-link-lib=openjtalk");
-    generate_bindings(dst_dir.join("include"));
+    generate_bindings(dst_dir.join("include"), include_dirs.iter());
 }
 
 #[cfg(not(feature = "generate-bindings"))]
-fn generate_bindings(#[allow(unused_variables)] include_dir: impl AsRef<Path>) {}
+#[allow(unused_variables)]
+fn generate_bindings(
+    allow_dir: impl AsRef<Path>,
+    include_dirs: impl Iterator<Item = impl AsRef<Path>>,
+) {
+}
 
 #[cfg(feature = "generate-bindings")]
-fn generate_bindings(include_dir: impl AsRef<Path>) {
-    use std::path::PathBuf;
-    let include_dir = include_dir.as_ref();
-    let clang_args = &[format!("-I{}", include_dir.display())];
+fn generate_bindings(
+    allow_dir: impl AsRef<Path>,
+    include_dirs: impl Iterator<Item = impl AsRef<Path>>,
+) {
+    let include_dir = allow_dir.as_ref();
+    let clang_args = include_dirs
+        .map(|dir| format!("-I{}", dir.as_ref().display()))
+        .chain([format!("-I{}", include_dir.display())])
+        .collect::<Vec<_>>();
     println!("cargo:rerun-if-changed=wrapper.hpp");
     println!("cargo:rerun-if-changed=src/generated/bindings.rs");
     let mut bind_builder = bindgen::Builder::default()

crates/open_jtalk-sys/src/generated/bindings.rs

@@ -22,6 +22,18 @@ include!(concat!(
     "/src/generated/macos/aarch64/bindings.rs"
 ));
 
+#[cfg(all(target_os = "ios", target_arch = "aarch64"))]
+include!(concat!(
+    env!("CARGO_MANIFEST_DIR"),
+    "/src/generated/ios/aarch64/bindings.rs"
+));
+
+#[cfg(all(target_os = "ios", target_arch = "x86_64"))]
+include!(concat!(
+    env!("CARGO_MANIFEST_DIR"),
+    "/src/generated/ios/x86_64/bindings.rs"
+));
+
 #[cfg(all(target_os = "windows", target_arch = "x86"))]
 include!(concat!(
     env!("CARGO_MANIFEST_DIR"),