Fix Secret.bytesize delegates

spec/not_spec.cr

@@ -20,6 +20,11 @@ describe Crypto::Secret::Not do
     end
   end
 
+  it "bytesize" do
+    secret = Crypto::Secret::Not.new 5
+    secret.bytesize.should eq 5
+  end
+
   it "doesn't leak key material" do
     secret = Crypto::Secret::Not.new 5
     secret.to_s.should match /\(\*\*\*SECRET\*\*\*\)$/

src/crypto-secret/not.cr

@@ -5,16 +5,22 @@ require "./stateless"
 # Not locked in memory
 # Not access protected
 # No guard pages
-struct Crypto::Secret::Not
-  include Crypto::Secret::Stateless
+# Doesn't wipe
+module Crypto::Secret
+  struct Not
+    include Stateless
 
-  def self.new(size)
-    new Bytes.new(size)
+    def self.new(size)
+      new Bytes.new(size)
+    end
+
+    def initialize(@bytes : Bytes)
+    end
+
+    delegate_to_slice @bytes
+    delegate_to_bytesize @bytes.bytesize
+
+    def wipe
+    end
   end
-
-  def initialize(@bytes : Bytes)
-  end
-
-  delegate_to_slice @bytes
-  delegate_to_bytesize @bytes
 end

src/crypto-secret/secret.cr

@@ -90,7 +90,7 @@ module Crypto::Secret
 
   macro delegate_to_bytesize(to object)
     def bytesize : Int32
-      {{object.id}}.bytesize
+      {{object.id}}
     end
   end