From a9f1105fe51c28b641b61f9f9a68605ee57375fe Mon Sep 17 00:00:00 2001
From: "Brian J. Cardiff" <bcardiff@gmail.com>
Date: Fri, 15 May 2020 19:17:31 -0300
Subject: [PATCH 1/2] Update IO#write return type annotation on Crystal 0.35.0

---
 src/mysql/read_packet.cr  | 12 +++++++++---
 src/mysql/write_packet.cr | 18 +++++++++++++-----
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/src/mysql/read_packet.cr b/src/mysql/read_packet.cr
index 2672ade..23a2a17 100644
--- a/src/mysql/read_packet.cr
+++ b/src/mysql/read_packet.cr
@@ -30,9 +30,15 @@ class MySql::ReadPacket < IO
     raise DB::ConnectionLost.new(@connection)
   end
 
-  def write(slice) : Nil
-    raise "not implemented"
-  end
+  {% if compare_versions(Crystal::VERSION, "0.35.0-0") >= 0 %}
+    def write(slice) : UInt64
+      raise "not implemented"
+    end
+  {% else %}
+    def write(slice) : Nil
+      raise "not implemented"
+    end
+  {% end %}
 
   def read_byte!
     read_byte || raise "Unexpected EOF"
diff --git a/src/mysql/write_packet.cr b/src/mysql/write_packet.cr
index fe8bf5b..5815792 100644
--- a/src/mysql/write_packet.cr
+++ b/src/mysql/write_packet.cr
@@ -6,11 +6,19 @@ class MySql::WritePacket < IO
     raise "not implemented"
   end
 
-  def write(slice) : Nil
-    @io.write(slice)
-  rescue IO::EOFError
-    raise DB::ConnectionLost.new(@connection)
-  end
+  {% if compare_versions(Crystal::VERSION, "0.35.0-0") >= 0 %}
+    def write(slice) : UInt64
+      @io.write(slice)
+    rescue IO::EOFError
+      raise DB::ConnectionLost.new(@connection)
+    end
+  {% else %}
+    def write(slice) : Nil
+      @io.write(slice)
+    rescue IO::EOFError
+      raise DB::ConnectionLost.new(@connection)
+    end
+  {% end %}
 
   def write_lenenc_string(s : String)
     write_lenenc_int(s.bytesize)

From 7aaa126227d88e6474e55a0219fe6640288bef2a Mon Sep 17 00:00:00 2001
From: "Brian J. Cardiff" <bcardiff@gmail.com>
Date: Fri, 29 May 2020 14:36:57 -0300
Subject: [PATCH 2/2] Update IO#write return type annotation on Crystal 0.35.0

---
 src/mysql/read_packet.cr  | 2 +-
 src/mysql/write_packet.cr | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mysql/read_packet.cr b/src/mysql/read_packet.cr
index 23a2a17..c5c0155 100644
--- a/src/mysql/read_packet.cr
+++ b/src/mysql/read_packet.cr
@@ -31,7 +31,7 @@ class MySql::ReadPacket < IO
   end
 
   {% if compare_versions(Crystal::VERSION, "0.35.0-0") >= 0 %}
-    def write(slice) : UInt64
+    def write(slice) : Int64
       raise "not implemented"
     end
   {% else %}
diff --git a/src/mysql/write_packet.cr b/src/mysql/write_packet.cr
index 5815792..9f300d1 100644
--- a/src/mysql/write_packet.cr
+++ b/src/mysql/write_packet.cr
@@ -7,7 +7,7 @@ class MySql::WritePacket < IO
   end
 
   {% if compare_versions(Crystal::VERSION, "0.35.0-0") >= 0 %}
-    def write(slice) : UInt64
+    def write(slice) : Int64
       @io.write(slice)
     rescue IO::EOFError
       raise DB::ConnectionLost.new(@connection)