release 0.1.0: fixed bug with object/empty serialization, migrated to newest kotlin

src/commonMain/kotlin/net.sergeych.bipack/BipackDecoder.kt

@@ -31,18 +31,20 @@ class BipackDecoder(
     override fun decodeBoolean(): Boolean = input.readByte().toInt() != 0
     override fun decodeByte(): Byte = input.readByte()
     override fun decodeShort(): Short =
-        if( fixedNumber ) input.readI16()
+        if (fixedNumber) input.readI16()
         else if (nextIsUnsigned)
             input.readNumber<UInt>().toShort()
         else
             input.readNumber()
+
     override fun decodeInt(): Int =
         if (fixedNumber) input.readI32()
         else if (nextIsUnsigned) input.readNumber<UInt>().toInt() else input.readNumber()
 
     override fun decodeLong(): Long =
-        if( fixedNumber ) input.readI64()
+        if (fixedNumber) input.readI64()
         else if (nextIsUnsigned) input.readNumber<ULong>().toLong() else input.readNumber()
+
     override fun decodeFloat(): Float = input.readFloat()
     override fun decodeDouble(): Double = input.readDouble()
     override fun decodeChar(): Char = Char(input.readNumber<UInt>().toInt())
@@ -57,7 +59,7 @@ class BipackDecoder(
     override fun decodeEnum(enumDescriptor: SerialDescriptor): Int = input.readNumber<UInt>().toInt()
 
     override fun decodeElementIndex(descriptor: SerialDescriptor): Int {
-        if (elementIndex >= elementsCount || input.isEnd() == true )
+        if (elementIndex >= elementsCount)
             return CompositeDecoder.DECODE_DONE
         nextIsUnsigned = false
         for (a in descriptor.getElementAnnotations(elementIndex)) {
@@ -71,11 +73,13 @@ class BipackDecoder(
     }
 
     override fun <T> decodeSerializableValue(deserializer: DeserializationStrategy<T>): T {
-        return if( deserializer == Instant.serializer() )
+        return if (deserializer == Instant.serializer())
             Instant.fromEpochMilliseconds(decodeLong()) as T
         else
             super.decodeSerializableValue(deserializer)
     }
+
+
     override fun decodeSequentially(): Boolean = isCollection
 
     override fun beginStructure(descriptor: SerialDescriptor): CompositeDecoder {
@@ -122,7 +126,11 @@ class BipackDecoder(
         super.endStructure(descriptor)
     }
 
-    override fun decodeNotNullMark(): Boolean = decodeBoolean()
+    override fun decodeNotNullMark(): Boolean = try {
+        decodeBoolean()
+    } catch (_: DataSource.EndOfData) {
+        false
+    }
 
     @ExperimentalSerializationApi
     override fun decodeNull(): Nothing? = null