fixing issues around typing

lib/httpx/transcoder/xml.rb

@@ -12,14 +12,22 @@ module HTTPX::Transcoder
 
     MIME_TYPES = %r{\b(application|text)/(.+\+)?xml\b}.freeze
 
-    class Encoder < SimpleDelegator
+    class Encoder
+      def initialize(xml)
+        @raw = xml
+      end
+
       def content_type
-        charset = respond_to?(:encoding) ? encoding.to_s.downcase : "utf-8"
+        charset = @raw.respond_to?(:encoding) ? @raw.encoding.to_s.downcase : "utf-8"
         "application/xml; charset=#{charset}"
       end
 
       def bytesize
-        to_s.bytesize
+        @raw.to_s.bytesize
+      end
+
+      def to_s
+        @raw.to_s
       end
     end
 

sig/transcoder/json.rbs

@@ -20,7 +20,7 @@ module HTTPX::Transcoder
 
       private
 
-      def initialize: (_ToJson json) -> untyped
+      def initialize: (_ToJson json) -> void
     end
   end
 end

sig/transcoder/xml.rbs

@@ -0,0 +1,21 @@
+module HTTPX::Transcoder
+  module XML
+
+    def self?.encode: (untyped xml) -> Encoder
+    def self?.decode: (HTTPX::Response response) -> _Decoder
+
+    class Encoder
+      @raw: untyped # can be nokogiri object
+
+      def content_type: () -> String
+
+      def bytesize: () -> (Integer | Float)
+
+      def to_s: () -> String
+
+      private
+
+      def initialize: (String xml) -> void
+    end
+  end
+end

test/support/ci/build.sh

@@ -10,7 +10,7 @@ RUBY_ENGINE=`ruby -e 'puts RUBY_ENGINE'`
 IPTABLES=iptables-translate
 
 if [[ "$RUBY_ENGINE" = "truffleruby" ]]; then
-  dnf install -y iptables iproute which file idn2 git
+  dnf install -y iptables iproute which file idn2 git xz
 elif [[ "$RUBY_PLATFORM" = "java" ]]; then
   apt-get update && apt-get install -y build-essential iptables iproute2 file idn2 git
 elif [[ ${RUBY_VERSION:0:3} = "2.1" ]]; then