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android / platform / external / fbjni / 568b012
commit568b0129b0a49b0b68392f95f4a8c6f6bf3d9bfa[log] [tgz]
authorJoshua Selbo <jselbo@meta.com>Tue Mar 28 21:56:35 2023 -0700
committerFacebook GitHub Bot <facebook-github-bot@users.noreply.github.com>Tue Mar 28 21:56:35 2023 -0700
treedb6d8c2a2bb48c8a1305b88219cc1a2b1fba572a
parent303646316929436ad2720f4877ac3c177dd1b034 [diff]
Fix CI

Reviewed By: jiawei-lyu

Differential Revision: D44491212

fbshipit-source-id: be935b09d77e77fd7640a3c28feea48b0c5584ca
1 file changed
tree: db6d8c2a2bb48c8a1305b88219cc1a2b1fba572a
  1. .github/
  2. cxx/
  3. docs/
  4. gradle/
  5. java/
  6. manifest/
  7. scripts/
  8. test/
  9. .gitignore
  10. build.gradle
  11. CMakeLists.txt
  12. CODE_OF_CONDUCT.md
  13. CONTRIBUTING.md
  14. googletest-CMakeLists.txt.in
  15. gradle.properties
  16. gradlew
  17. gradlew.bat
  18. host.gradle
  19. LICENSE
  20. README.md
  21. settings.gradle
README.md

fbjni

The Facebook JNI helpers library is designed to simplify usage of the Java Native Interface. The helpers were implemented to ease the integration of cross-platform mobile code on Android, but there are no Android specifics in the design. It can be used with any Java VM that supports JNI.

struct JMyClass : JavaClass<JMyClass> {
  static constexpr auto kJavaDescriptor = "Lcom/example/MyClass;";

  // Automatic inference of Java method descriptors.
  static std::string concatenate(
      alias_ref<JClass> clazz,
      // Automatic conversion to std::string.
      std::string prefix) {
    // Call methods easily.
    static const auto getSuffix = clazz->getStaticMethod<JString()>("getSuffix");
    // Manage JNI references automatically.
    local_ref<JString> jstr = getSuffix(clazz);
    // Automatic exception translation between Java and C++ (both ways).
    // No need to check exception state after each call.
    result += jstr->toStdString();
    // Automatic conversion from std::string.
    return result;
  }
};

Documentation

License

fbjni is Apache-2 licensed, as found in the LICENSE file.