Sergej Jaskiewicz
d7d86a0e95
If a lambda expression does not capture any local variables, convert
it to a global free function and replace the lambda creation with
a reference to that function.
Example: for the following Kotlin code
```kotlin
fun foo(f: () -> Unit) = f()
fun bar() = foo { console.log("hello") }
```
before this patch, we generated:
```js
function foo(f) {
return f();
}
function bar() {
return foo(bar$lambda());
}
function bar$lambda() {
return function () {
console.log('hello');
};
}
```
after this patch, we generate:
```js
function foo(f) {
return f();
}
function bar() {
return foo(bar$lambda);
}
function bar$lambda() {
console.log('hello');
}
```
JavaScript Translation
This module performs the translation of Kotlin source code to JavaScript.
There are various Kotlin APIs to JavaScript environments in the standard library.
Compiling the Kotlin Standard Library for JavaScript
The Kotlin Standard Library for JS is built with gradle, see the corresponding module's ReadMe.
Reusing JVM based test cases in JavaScript
Any Kotlin test cases using the org.junit.Test annotation and the kotlin.test package, such as this test case are automatically converted to JavaScript using QUnit.
This allows the test cases to be run directly in a web page in any web browser.
Using the Kotlin Library in JavaScript
There is a simple sample which shows how to use the Kotlin Standard Library from inside JavaScript in a web page.
Contributing
We love contributions! The JavaScript translation could really use your help! If you fancy contributing:
- check the contributing section on general stuff like getting the code etc
- try fix one of the pending JavaScript translation issues