3 files changed, 60 insertions(+), 0 deletions(-)

A spec/cbor_uuid.cr
M src/cbor/from_cbor.cr
M src/cbor/to_cbor.cr

@@ 0,0 1,15 @@
+require "./spec_helper"
+
+describe CBOR do
+  describe "UUID" do
+    it "UUID#to_cbor" do
+      uuid = UUID.new "fc47eb8e-b13c-481e-863a-8f8c47a550f2"
+      uuid.to_cbor.hexstring.should eq "50fc47eb8eb13c481e863a8f8c47a550f2"
+    end
+
+    it "UUID#from_cbor" do
+      uuid = UUID.from_cbor "50fc47eb8eb13c481e863a8f8c47a550f2".hexbytes
+      uuid.to_cbor.hexstring.should eq "50fc47eb8eb13c481e863a8f8c47a550f2"
+    end
+  end
+end

@@ 1,3 1,5 @@
+require "uuid"
+
 def Object.from_cbor(string_or_io)
   parser = CBOR::Decoder.new(string_or_io)
   new(parser)


@@ 255,3 257,32 @@ def Union.new(decoder : CBOR::Decoder)
     {% end %}
   {% end %}
 end
+
+struct UUID
+  # Creates UUID from CBOR using `CBOR::Decoder`.
+  #
+  # ```
+  # require "cbor"
+  #
+  # class Example
+  #   include CBOR::Serializable
+  #
+  #   property id : UUID
+  # end
+  #
+  # hash = {"id" => "ba714f86-cac6-42c7-8956-bcf5105e1b81"}
+  # example = Example.from_cbor hash.to_cbor
+  # example.id # => UUID(ba714f86-cac6-42c7-8956-bcf5105e1b81)
+  # ```
+  def self.new(pull : CBOR::Decoder)
+    # Either the UUID was encoded as String or bytes (smaller).
+    case pull.current_token
+    when CBOR::Token::StringT
+      new(pull.read_string)
+    when CBOR::Token::BytesT
+      new(pull.read_bytes)
+    else
+      raise "trying to get an UUID, but CBOR value isn't a string nor bytes: #{pull.current_token}"
+    end
+  end
+end

@@ 1,3 1,5 @@
+require "uuid"
+
 class Object
   def to_cbor : Bytes
     encoder = CBOR::Encoder.new


@@ 130,3 132,15 @@ end
 #   def to_cbor(encoder : CBOR::Encoder)
 #   end
 # end
+
+struct UUID
+  # Returns UUID as CBOR value.
+  #
+  # ```
+  # uuid = UUID.new("87b3042b-9b9a-41b7-8b15-a93d3f17025e")
+  # uuid.to_cbor
+  # ```
+  def to_cbor(cbor : CBOR::Encoder)
+    cbor.write(@bytes.to_slice)
+  end
+end