removed ByteSize, etc.

binary/util.go

@@ -0,0 +1,33 @@
+package binary
+
+import (
+    "crypto/sha256"
+    "bytes"
+)
+
+func BinaryBytes(b Binary) ByteSlice {
+    buf := bytes.NewBuffer(nil)
+    b.WriteTo(buf)
+    return ByteSlice(buf.Bytes())
+}
+
+// NOTE: does not care about the type, only the binary representation.
+func BinaryEqual(a, b Binary) bool {
+    aBytes := BinaryBytes(a)
+    bBytes := BinaryBytes(b)
+    return bytes.Equal(aBytes, bBytes)
+}
+
+// NOTE: does not care about the type, only the binary representation.
+func BinaryCompare(a, b Binary) int {
+    aBytes := BinaryBytes(a)
+    bBytes := BinaryBytes(b)
+    return bytes.Compare(aBytes, bBytes)
+}
+
+func BinaryHash(b Binary) ByteSlice {
+    hasher := sha256.New()
+    _, err := b.WriteTo(hasher)
+    if err != nil { panic(err) }
+    return ByteSlice(hasher.Sum(nil))
+}