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binding.cc
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binding.cc
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#include <node.h>
#include <functional>
#include <node_object_wrap.h>
#include <uv.h>
#include "node_modules/hunspell/src/hunspell/hunspell.hxx"
using namespace v8;
class Spellchecker : public node::ObjectWrap {
public:
static void Init(Local<FunctionTemplate> tpl) {
NODE_SET_PROTOTYPE_METHOD(tpl, "add", [](auto args){ add(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "addDictionary", [](auto args){ add_dic(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "addWithAffix", [](auto args){ add_with_affix(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "analyze", [](auto args){ analyze(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "generate", [](auto args){ generate(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "remove", [](auto args){ remove(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "spell", [](auto args){ spell(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "stem", [](auto args){ stem(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "suffixSuggest", [](auto args){ suffix_suggest(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "suggest", [](auto args){ suggest(args, Execute); });
NODE_SET_PROTOTYPE_METHOD(tpl, "addSync", [](auto args){ add(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "addDictionarySync", [](auto args){ add_dic(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "addWithAffixSync", [](auto args){ add_with_affix(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "analyzeSync", [](auto args){ analyze(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "generateSync", [](auto args){ generate(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "removeSync", [](auto args){ remove(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "spellSync", [](auto args){ spell(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "stemSync", [](auto args){ stem(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "suffixSuggestSync", [](auto args){ suffix_suggest(args, ExecuteSync); });
NODE_SET_PROTOTYPE_METHOD(tpl, "suggestSync", [](auto args){ suggest(args, ExecuteSync); });
}
static void New(const FunctionCallbackInfo<Value> &args) {
Isolate* isolate = args.GetIsolate();
HandleScope scope(isolate);
int argl = args.Length();
if(!args.IsConstructCall()) {
isolate->ThrowException(Exception::Error(
String::NewFromUtf8(isolate, "Use the new operator to create an instance of this object.")));
return;
}
if(argl < 2) {
isolate->ThrowException(
Exception::Error(String::NewFromUtf8(isolate, "Constructor requires two arguments.")));
return;
}
auto obj = new Spellchecker(args);
obj->Wrap(args.This());
args.GetReturnValue().Set(args.This());
}
private:
Hunspell* hun;
explicit Spellchecker(const FunctionCallbackInfo<Value> &args) {
hun = new Hunspell(*String::Utf8Value(args[0]), *String::Utf8Value(args[1]));
}
~Spellchecker() override {
delete hun;
}
static void add(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<int(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
auto word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) { return self->hun->add(word); });
}
static void add_dic(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<int(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
auto path = *String::Utf8Value(args[0]);
execute(args, [path](auto self) { return self->hun->add_dic(path); });
}
static void add_with_affix(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<int(Spellchecker*)>)) {
if(!CheckArgs(args, 2)) return;
std::string word = *String::Utf8Value(args[0]), example = *String::Utf8Value(args[1]);
execute(args, [word, example](auto self) { return self->hun->add_with_affix(word, example); });
}
static void analyze(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<std::vector<std::string>(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) { return self->hun->analyze(word); });
}
static void generate(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<std::vector<std::string>(Spellchecker*)>)) {
if(!CheckArgs(args, 2)) return;
std::string word = *String::Utf8Value(args[0]);
std::string* word2;
std::vector<std::string>* pl;
if(args[1]->IsArray()) {
auto vector = ToVector(args[1].As<Array>());
pl = &vector;
} else {
std::string str = *String::Utf8Value(args[1]);
word2 = &str;
}
execute(args, [word, word2, pl](auto self) {
return word2 != nullptr ? self->hun->generate(word, *word2) : self->hun->generate(word, *pl);
});
}
static void remove(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<int(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) {
return self->hun->remove(word);
});
}
static void spell(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<bool(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) {
return self->hun->spell(word);
});
}
static void stem(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<std::vector<std::string>(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string* word;
std::vector<std::string>* pl;
if(args[0]->IsArray()) {
auto vector = ToVector(args[0].As<Array>());
pl = &vector;
} else {
std::string str = *String::Utf8Value(args[0]);
word = &str;
}
execute(args, [word, pl](auto self) {
return word != nullptr ? self->hun->stem(*word) : self->hun->stem(*pl);
});
}
static void suffix_suggest(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<std::vector<std::string>(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) { return self->hun->suffix_suggest(word); });
}
static void suggest(const FunctionCallbackInfo<Value> &args, void (* execute)(const FunctionCallbackInfo<Value>&, std::function<std::vector<std::string>(Spellchecker*)>)) {
if(!CheckArgs(args, 1)) return;
std::string word = *String::Utf8Value(args[0]);
execute(args, [word](auto self) { return self->hun->suggest(word); });
}
static bool CheckArgs(const FunctionCallbackInfo<Value> &args, int minArgs) {
auto isolate = args.GetIsolate();
if(args.Length() < minArgs) {
isolate->ThrowException(Exception::Error(String::NewFromUtf8(isolate, "Too few arguments provided.")));
return false;
}
return true;
}
template<typename T>
static void Execute(const FunctionCallbackInfo<Value> &args, std::function<T(Spellchecker*)> body) {
auto spellchecker = ObjectWrap::Unwrap<Spellchecker>(args.Holder());
struct dataT {
T ret;
Persistent<v8::Promise::Resolver>* persistent;
std::function<T()> body;
};
auto isolate = args.GetIsolate();
auto resolver = v8::Promise::Resolver::New(isolate);
auto req = new uv_work_t;
auto data = new dataT;
data->persistent = new Persistent<v8::Promise::Resolver>(isolate, resolver);
data->body = [body, spellchecker]() { return body(spellchecker); };
req->data = data;
args.GetReturnValue().Set(resolver->GetPromise());
uv_queue_work(uv_default_loop(), req, [](auto req) {
auto data = static_cast<dataT*>(req->data);
auto ret = data->body();
data->ret = ret;
}, [](auto req, auto status) {
auto isolate = Isolate::GetCurrent();
HandleScope scope(isolate);
auto data = static_cast<dataT*>(req->data);
data->persistent->Get(isolate)->Resolve(GetValue(data->ret));
delete data->persistent;
delete data;
delete req;
});
}
template<typename T>
static void ExecuteSync(const FunctionCallbackInfo<Value> &args, std::function<T(Spellchecker*)> body) {
auto spellchecker = ObjectWrap::Unwrap<Spellchecker>(args.Holder());
auto ret = body(spellchecker);
args.GetReturnValue().Set(GetValue(ret));
}
static Local<Value> GetValue(int value) {
return Integer::New(Isolate::GetCurrent(), value);
}
static Local<Value> GetValue(bool value) {
return Boolean::New(Isolate::GetCurrent(), value);
}
static Local<Value> GetValue(std::vector<std::string> &vector) {
auto isolate = Isolate::GetCurrent();
auto array = Array::New(isolate, vector.size());
for(auto i = 0; i < vector.size(); ++i)
array->Set(i, String::NewFromUtf8(isolate, vector[i].c_str()));
return array;
}
static std::vector<std::string> ToVector(Local<Array> array) {
auto length = array->Length();
auto vector = std::vector<std::string>(length);
for(size_t i = 0; i < length; ++i)
vector[i] = *String::Utf8Value(array->Get(i));
return vector;
}
};
void Init(Handle<Object> exports, Handle<Object> module) {
Isolate* isolate = Isolate::GetCurrent();
auto tpl = FunctionTemplate::New(isolate, Spellchecker::New);
tpl->InstanceTemplate()->SetInternalFieldCount(1);
Spellchecker::Init(tpl);
tpl->SetClassName(String::NewFromUtf8(isolate, "Hunspell"));
exports->Set(String::NewFromUtf8(isolate, "default"), tpl->GetFunction());
}
NODE_MODULE(hunspell, Init);