Update handling of trailers.

Author: ioquatix

async-http.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
 	spec.add_dependency("async-io", "~> 1.28")
 	spec.add_dependency("async-pool", "~> 0.2")
 
-	spec.add_dependency("protocol-http", "~> 0.16.0")
+	spec.add_dependency("protocol-http", "~> 0.17.0")
 	spec.add_dependency("protocol-http1", "~> 0.11.0")
 	spec.add_dependency("protocol-http2", "~> 0.13.0")
 

lib/async/http/protocol/http1/client.rb

@@ -39,6 +39,8 @@ def call(request, task: Task.current)
 							raise RequestFailed
 						end
 
+						request.headers.trailers!
+						
 						if request.body?
 							body = request.body
 

lib/async/http/protocol/http1/server.rb

@@ -61,6 +61,7 @@ def each(task: Task.current)
 
 							if response
 								write_response(@version, response.status, response.headers)
+								response.headers.trailers!
 
 								body = response.body
 

spec/async/http/protocol/shared_examples.rb

@@ -97,13 +97,14 @@
 					Protocol::HTTP::Response[200, [], "request trailers"]
 				else
 					headers = Protocol::HTTP::Headers.new
-					headers.add('etag') {'abcd'}
+					headers.add('trailers', 'etag')
 
 					body = Async::HTTP::Body::Writable.new
 
 					Async do |task|
 						body.write("response trailers")
 						task.sleep(0.01)
+						headers.add('etag', 'abcd')
 						body.close
 					end
 
@@ -114,12 +115,13 @@
 
 		it "can send request trailers" do
 			headers = Protocol::HTTP::Headers.new
-			headers.add('etag') {'abcd'}
+			headers.add('trailers', 'etag')
 			body = Async::HTTP::Body::Writable.new
 
 			Async do |task|
 				body.write("Hello")
 				task.sleep(0.01)
+				headers.add('etag', 'abcd')
 				body.close
 			end