bun.sh/test/v8/v8-module/module.js

module.exports = debugMode => {
  const nativeModule = require(`./build/${debugMode ? "Debug" : "Release"}/v8tests`);
  return {
    ...nativeModule,

    test_v8_global() {
      console.log("global initial value =", nativeModule.global_get());

      nativeModule.global_set(123);
      console.log("global after setting to 123 =", nativeModule.global_get());

      nativeModule.global_set({ foo: 5, bar: ["one", "two", "three"] });
      if (process.isBun) {
        Bun.gc(true);
      }
      console.log("global after setting to object =", JSON.stringify(nativeModule.global_get()));

      nativeModule.global_set(true);
      console.log("global after setting to true =", nativeModule.global_get());
    },

    test_v8_function_template() {
      const f = nativeModule.create_function_with_data();
      if (process.isBun) {
        Bun.gc(true);
      }
      console.log(f());
    },

    print_native_function() {
      nativeModule.print_values_from_js(nativeModule.create_function_with_data());
    },

    call_function_with_weird_this_values() {
      for (const thisValue of [null, undefined, 5, "abc"]) {
        const ret = nativeModule.return_this.call(thisValue);
        console.log("typeof =", typeof ret);
        if (ret == globalThis) {
          console.log("returned globalThis");
        } else if (ret instanceof String) {
          console.log("returned boxed String:", ret.toString());
        } else {
          console.log("returned", ret);
        }
        console.log("constructor is", ret.constructor.name);
      }
    },
  };
};