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#include "napi.h"
using namespace Napi;
namespace {
int testData = 1;
int finalizeCount = 0;
Value CreateExternal(const CallbackInfo& info) {
finalizeCount = 0;
return External<int>::New(info.Env(), &testData);
}
Value CreateExternalWithFinalize(const CallbackInfo& info) {
finalizeCount = 0;
return External<int>::New(info.Env(), new int(1), [](Env /*env*/, int* data) {
delete data;
finalizeCount++;
});
}
Value CreateExternalWithFinalizeHint(const CallbackInfo& info) {
finalizeCount = 0;
char* hint = nullptr;
return External<int>::New(
info.Env(),
new int(1),
[](Env /*env*/, int* data, char* /*hint*/) {
delete data;
finalizeCount++;
},
hint);
}
void CheckExternal(const CallbackInfo& info) {
Value arg = info[0];
if (arg.Type() != napi_external) {
Error::New(info.Env(), "An external argument was expected.")
.ThrowAsJavaScriptException();
return;
}
External<int> external = arg.As<External<int>>();
int* externalData = external.Data();
if (externalData == nullptr || *externalData != 1) {
Error::New(info.Env(), "An external value of 1 was expected.")
.ThrowAsJavaScriptException();
return;
}
}
Value GetFinalizeCount(const CallbackInfo& info) {
return Number::New(info.Env(), finalizeCount);
}
Value CreateExternalWithFinalizeException(const CallbackInfo& info) {
return External<int>::New(info.Env(), new int(1), [](Env env, int* data) {
Error error = Error::New(env, "Finalizer exception");
delete data;
#ifdef NAPI_CPP_EXCEPTIONS
throw error;
#else
error.ThrowAsJavaScriptException();
#endif
});
}
} // end anonymous namespace
Object InitExternal(Env env) {
Object exports = Object::New(env);
exports["createExternal"] = Function::New(env, CreateExternal);
exports["createExternalWithFinalize"] =
Function::New(env, CreateExternalWithFinalize);
exports["createExternalWithFinalizeException"] =
Function::New(env, CreateExternalWithFinalizeException);
exports["createExternalWithFinalizeHint"] =
Function::New(env, CreateExternalWithFinalizeHint);
exports["checkExternal"] = Function::New(env, CheckExternal);
exports["getFinalizeCount"] = Function::New(env, GetFinalizeCount);
return exports;
}
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