fix doc

2 files changed, 7 insertions, 3 deletions

diff --git a/lib/plum/frame_utils.rb b/lib/plum/frame_utils.rb
index d897c22..66be18d 100644
--- a/lib/plum/frame_utils.rb
+++ b/lib/plum/frame_utils.rb
@@ -2,7 +2,7 @@ using Plum::BinaryString
 
 module Plum
   module FrameUtils
-    # Splits the frame into multiple frames if the payload size exceeds max size.
+    # Splits the DATA frame into multiple frames if the payload size exceeds max size.
     #
     # @param max [Integer] The maximum size of a frame payload.
     # @return [Array<Frame>] The splitted frames.
@@ -21,9 +21,13 @@ module Plum
       frames
     end
 
+    # Splits the HEADERS or PUSH_PROMISE frame into multiple frames if the payload size exceeds max size.
+    #
+    # @param max [Integer] The maximum size of a frame payload.
+    # @return [Array<Frame>] The splitted frames.
     def split_headers(max)
       return [self] if self.length <= max
-      raise "Frame type must be DATA" unless [:headers, :push_promise].include?(self.type)
+      raise "Frame type must be HEADERS or PUSH_PROMISE" unless [:headers, :push_promise].include?(self.type)
 
       fragments = self.payload.each_byteslice(max).to_a
 
diff --git a/lib/plum/stream_utils.rb b/lib/plum/stream_utils.rb
index 0c4f4a6..0bcceec 100644
--- a/lib/plum/stream_utils.rb
+++ b/lib/plum/stream_utils.rb
@@ -15,7 +15,7 @@ module Plum
       end
     end
 
-    # Reserves a stream to server push. Sends PUSH_STREAM and create new stream.
+    # Reserves a stream to server push. Sends PUSH_PROMISE and create new stream.
     #
     # @param headers [Hash<String, String>] The *request* headers. It must contain all of them: ':authority', ':method', ':scheme' and ':path'.
     # @return [Stream] The stream to send push response.