File indexing completed on 2024-11-24 04:54:34

 /*
     SPDX-License-Identifier: MPL-2.0
 */
 
 /* Copyright (c) 2015 Brian R. Bondy. Distributed under the MPL2 license.
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "BloomFilterWrap.h"
 
 namespace BloomFilterWrap {
 
 using v8::Context;
 using v8::Function;
 using v8::FunctionCallbackInfo;
 using v8::FunctionTemplate;
 using v8::Isolate;
 using v8::Local;
 using v8::Number;
 using v8::Object;
 using v8::Persistent;
 using v8::String;
 using v8::Boolean;
 using v8::Value;
 
 Persistent<Function> BloomFilterWrap::constructor;
 
 BloomFilterWrap::BloomFilterWrap(unsigned int bitsPerElement,
     unsigned int estimatedNumElements, HashFn hashFns[], int numHashFns)
   : BloomFilter(bitsPerElement, estimatedNumElements, hashFns, numHashFns) {
 }
 
 BloomFilterWrap::~BloomFilterWrap() {
 }
 
 void BloomFilterWrap::Init(Local<Object> exports) {
   Isolate* isolate = exports->GetIsolate();
 
   // Prepare constructor template
   Local<FunctionTemplate> tpl = FunctionTemplate::New(isolate, New);
   tpl->SetClassName(String::NewFromUtf8(isolate, "BloomFilter"));
   tpl->InstanceTemplate()->SetInternalFieldCount(1);
 
   // Prototype
   NODE_SET_PROTOTYPE_METHOD(tpl, "add", BloomFilterWrap::Add);
   NODE_SET_PROTOTYPE_METHOD(tpl, "exists", BloomFilterWrap::Exists);
 
   constructor.Reset(isolate, tpl->GetFunction());
   exports->Set(String::NewFromUtf8(isolate, "BloomFilter"),
                tpl->GetFunction());
 }
 
 void BloomFilterWrap::New(const FunctionCallbackInfo<Value>& args) {
   Isolate* isolate = args.GetIsolate();
 
   if (args.IsConstructCall()) {
     // Invoked as constructor: `new BloomFilter(...)`
     BloomFilterWrap* obj = new BloomFilterWrap();
     obj->Wrap(args.This());
     args.GetReturnValue().Set(args.This());
   } else {
     // Invoked as plain function `BloomFilter(...)`, turn into construct call.
     const int argc = 1;
     Local<Value> argv[argc] = { args[0] };
     Local<Context> context = isolate->GetCurrentContext();
     Local<Function> cons = Local<Function>::New(isolate, constructor);
     Local<Object> result =
         cons->NewInstance(context, argc, argv).ToLocalChecked();
     args.GetReturnValue().Set(result);
   }
 }
 
 void BloomFilterWrap::Add(const FunctionCallbackInfo<Value>& args) {
   Isolate* isolate = args.GetIsolate();
   String::Utf8Value str(isolate, args[0]->ToString());
   const char * buffer = *str;
 
   BloomFilterWrap* obj = ObjectWrap::Unwrap<BloomFilterWrap>(args.Holder());
   obj->add(buffer);
 }
 
 void BloomFilterWrap::Exists(const FunctionCallbackInfo<Value>& args) {
   Isolate* isolate = args.GetIsolate();
   String::Utf8Value str(isolate, args[0]->ToString());
   const char * buffer = *str;
 
   BloomFilterWrap* obj = ObjectWrap::Unwrap<BloomFilterWrap>(args.Holder());
   bool exists = obj->exists(buffer);
 
   args.GetReturnValue().Set(Boolean::New(isolate, exists));
 }
 
 
 }  // namespace BloomFilterWrap