Lightweight embedded interpreter executes type-safe scripts with a subset of standard libraries and third-party support. Facilitates script execution across multiple platforms within a host runtime environment.
A lite embedded Kotlin interpreter
Kotlite is an open-sourced type-safe programming language that has a rich subset of the script variant of the Kotlin programming language. It comes with standard libraries, which are a subset of Kotlin Multiplatform/Common standard libraries and a few third-party libraries.
Kotlite Interpreter is a lightweight Kotlin Multiplatform library to interpret and execute codes written in Kotlite, and bridge the host runtime environment and the embedded runtime environment.
Kotlite Interpreter
Kotlite Stdlib
Kotlite Library Preprocessor
val env = ExecutionEnvironment().apply {
install(AllStdLibModules())
}
val interpreter = KotliteInterpreter(
filename = "UserScript",
code = """
fun fib(n: Int): Long {
if (n > 100) throw Exception("n is too large")
val dp = mutableMapOf<Int, Long>()
fun f(i: Int): Long {
if (i < 0) throw Exception("Invalid i: ${'$'}i")
if (i <= 1) return i.toLong()
if (i in dp) {
return dp[i]!!
}
return (f(i - 2) + f(i - 1)).also {
dp[i] = it
}
}
return f(n)
}
val a = fib(19)
""".trimIndent(),
executionEnvironment = env,
)
interpreter.eval()
symbolTable = interpreter.symbolTable()
a = (symbolTable.findPropertyByDeclaredName() LongValue).value
The interpreter is well tested.
Web - Kotlite Interpreter in browser
https://github.com/sunny-chung/kotlite/assets/14835950/464ddb68-5623-463e-89cb-5b34a4bebf41
https://github.com/sunny-chung/kotlite/assets/14835950/417143fa-6240-40cf-ba5f-8e40e97a4243
https://github.com/sunny-chung/kotlite/assets/14835950/f731c9a0-d941-4cd3-a23c-bfc2a60429f4
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