embedded-v8 – Tarik Billa

How to embed V8 in a Java application?

December 4, 2023 by Tarik

You can use J2V8 https://github.com/eclipsesource/J2V8. It’s even available in Maven Central. Below is a Hello, World! program using J2V8. package com.example; import com.eclipsesource.v8.V8; public class EclipseCon_snippet5 { public static class Printer { public void print(String string) { System.out.println(string); } } public static void main(String[] args) { V8 v8 = V8.createV8Runtime(); v8.registerJavaMethod(new Printer(), “print”, “print”, new … Read more

Calling a v8 javascript function from c++ with an argument

August 25, 2023 by Tarik

I haven’t tested this, but it’s possible that something like this will work: // …define and compile “test_function” Handle<v8::Object> global = context->Global(); Handle<v8::Value> value = global->Get(String::New(“test_function”)); if (value->IsFunction()) { Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(value); Handle<Value> args[2]; args[0] = v8::String::New(“value1”); args[1] = v8::String::New(“value2”); Handle<Value> js_result = func->Call(global, 2, args); if (js_result->IsInt32()) { int32_t result = js_result->ToInt32().Value(); // … Read more

What exactly is the difference between v8::Isolate and v8::Context?

April 16, 2023 by Tarik

I’m sure the following is a simplification, but it works for me. An isolate is an independent copy of the V8 runtime, including a heap manager, a garbage collector, etc. Only one thread may access a given isolate at a time, but different threads may access different isolates simultaneously. An isolate is not sufficient for … Read more