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Give a better error message for --jvm-target #4978

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Expand Up @@ -55,5 +55,8 @@ internal fun CompilerSpec.parseLanguageVersion(): LanguageVersion? {
}

internal fun CompilerSpec.parseJvmTarget(): JvmTarget {
return checkNotNull(JvmTarget.fromString(jvmTarget)) { "Invalid value passed to --jvm-target" }
return checkNotNull(JvmTarget.fromString(jvmTarget)) {
"Invalid value ($jvmTarget) passed to --jvm-target," +
" must be one of ${JvmTarget.values().map(JvmTarget::description)}"
}
}