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Add contract

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This commit is contained in:
Him188 2020-01-06 20:49:56 +08:00
parent d3c97fb6d4
commit 3fd94adf4e
1 changed files with 10 additions and 1 deletions

11
mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/ByteArrayUtil.kt
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@ -7,6 +7,9 @@ import kotlinx.io.charsets.Charsets
import kotlinx.io.core.ByteReadPacket
import kotlinx.io.core.String
import kotlinx.io.core.use
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
import kotlin.jvm.JvmOverloads
import kotlin.jvm.JvmSynthetic
@ -48,6 +51,12 @@ fun ByteArray.encodeToString(charset: Charset = Charsets.UTF_8): String = String
fun ByteArray.toReadPacket(offset: Int = 0, length: Int = this.size) = ByteReadPacket(this, offset = offset, length = length)
inline fun <R> ByteArray.read(t: ByteReadPacket.() -> R): R = this.toReadPacket().use(t)
@UseExperimental(ExperimentalContracts::class)
inline fun <R> ByteArray.read(t: ByteReadPacket.() -> R): R {
contract {
callsInPlace(t, InvocationKind.EXACTLY_ONCE)
}
return this.toReadPacket().use(t)
}
fun ByteArray.cutTail(length: Int): ByteArray = this.copyOfRange(0, this.size - length)