Lemon
Lemon is a framework for building Javascript runtime software, built on the Chrome V8 Javascript Engine.
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C++ bindings
Integrated support for javascript to c++ bindings and viceversa.
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Object oriented
Lemon lets you build your applications with a simple and scalable object oriented approach.
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Single and multi threaded
Lemon runs on a single thread by default but has support for running on multiple threads.
Video introduction: https://www.youtube.com/watch?v=5fWIf2A6Z_s
Example
A simple example of an application written in Lemon looks like this:
void App::Start(int argc, char* argv[]) {
for (int i = 1; i < argc; ++i) {
// Get filename of the javascript file to run
const char* filename = argv[i];
// Create a new context for executing javascript code
Local<Context> context = this->CreateLocalContext();
// Enter the new context
Context::Scope contextscope(context);
// Run the javascript file
this->RunJsFromFile(filename);
}
}You can find this example in the 'app' folder, in the file App.cpp.
The example does the following:
- Calls the Start method which automatically starts the application inside a virtual machine.
- Loops each argument given from a command line, each argument is expected to be a javascript file.
- Creates a new context and enters the context.
- Calls the RunJsFromFile method which executes the code inside a Javascript file.
A context is an execution environment that allows Javascript to be executed inside the virtual machine.
Installing Lemon
Lemon currently has build support for Linux only.
Download the repo
git clone https://github.com/nordin-johan/lemon.git
Navigate to the directory
cd lemon
Build
make
You can now run ./lemon App.js in your terminal to try it out, it should print the current version of Lemon.