No error if 'fun` keyword missing in abstract function in enums

[Strum355]

public enum class TokenType(val type: String) {
    ILLEGAL("ILLEGAL"),
	/* ... */
    RBRACE("{");

    abstract parse(): Statement
}

This silently fails, no error on abstract parse(): Statement even though the fun keyword is missing. There is no error on the enum types either about a missing implementation. Only if the funkeyword is added, do they error correctly

[fwcd]

@Strum355 What error does your build tool show you for that line?

[Strum355]

e: /home/noah/Kotlin/Hibanana/src/main/kotlin/xyz/noahsc/hibanana/token/Token.kt: (64, 14): Expecting member declaration where L64 is abstract parse(): Statement