The mix of two contexts: appendFoo is an extension...

# ktor

[gaetan]

The mix of two contexts: appendFoo is an extension function on StringBuilder defined inside Foo class. I didn’t knew how to do this before reading https://github.com/Kotlin/ktor/blob/master/ktor-features/ktor-html-builder/src/org/jetbrains/ktor/html/Template.kt#L85