turn SizedMessageField into SizedInteger

1 files changed, 7 insertions, 6 deletions

diff --git a/src/main/kotlin/SizedMessageField.kt b/src/main/kotlin/SizedInteger.kt
index c40a2a6..48e4e25 100644
--- a/src/main/kotlin/SizedMessageField.kt
+++ b/src/main/kotlin/SizedInteger.kt
@@ -1,21 +1,23 @@
 import java.math.BigInteger
 
 /**
- * [SizedMessageField] represents an unsigned integer number stored in a message field (i.e. a contiguous region of
- * memory) of fixed size.
+ * [SizedInteger] represents an unsigned integer number of arbitrary yet fixed length. It's useful for storing integers
+ * got from a connection as message fields.
  *
  * @param size The size of the field, measured in bytes.
  * @param value The value of the field.
  *
  * @throws IllegalArgumentException if the size required to store the provided value is bigger than the provided size.
  */
-class SizedMessageField(val size: Int, value: BigInteger) {
+class SizedInteger(val size: ULong, value: BigInteger) {
     init {
         if (!this.sizeOk(size, value)) {
             throw IllegalArgumentException()
         }
     }
 
+    constructor(size: ULong) : this(size, 0.toBigInteger())
+
     /**
      * @throws IllegalStateException on set if the declared size is not enough for the new value.
      */
@@ -26,10 +28,9 @@ class SizedMessageField(val size: Int, value: BigInteger) {
             }
         }
 
-    private fun sizeOk(size: Int, value: BigInteger): Boolean {
-        val requiredSize = value.toByteArray().size
+    private fun sizeOk(size: ULong, value: BigInteger): Boolean {
+        val requiredSize = value.toByteArray().size.toUInt()
         return requiredSize <= size
     }
     private fun sizeOk(value: BigInteger): Boolean = sizeOk(this.size, value)
-    private fun sizeOk(): Boolean = sizeOk(this.size, this.value)
 }
\ No newline at end of file