mirai/backend/codegen/build.gradle.kts

plugins {
    kotlin("jvm") version "1.4-M2"
    kotlin("plugin.serialization") version "1.4-M2"
    id("java")
}

kotlin {
    sourceSets {
        all {
            languageSettings.useExperimentalAnnotation("kotlin.Experimental")
            languageSettings.useExperimentalAnnotation("kotlin.OptIn")
            languageSettings.progressiveMode = true
            languageSettings.languageVersion = "1.4"
            languageSettings.apiVersion = "1.4"
            languageSettings.useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiInternalAPI")
            languageSettings.useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
            languageSettings.useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
            languageSettings.useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
        }
    }
}

dependencies {
    api(kotlin("stdlib-jdk8"))
}