[Experiment] Re-write in Ruby

benchmarks/type_casts/bm_panko.rb

@@ -2,16 +2,39 @@
 
 require_relative "support"
 
+class NoopWriter
+  attr_reader :value
+  def push_value(value, key)
+    @value = value
+    nil
+  end
+
+  def push_json(value, key)
+    nil
+  end
+end
+
+class Attribute
+  attr_reader :name_for_serialization, :type
+
+  def initialize(name_for_serialization:, type:)
+    @name_for_serialization = name_for_serialization
+    @type = type
+  end
+end
+
 def panko_type_convert(type_klass, from, to)
   converter = type_klass.new
-  assert type_klass.name.to_s, Panko._type_cast(converter, from), to
+
+  writer = NoopWriter.new
+  attribute = Attribute.new(name_for_serialization: "key", type: converter)
 
   Benchmark.run("#{type_klass.name}_TypeCast") do
-    Panko._type_cast(converter, from)
+    Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, from)
   end
 
   Benchmark.run("#{type_klass.name}_NoTypeCast") do
-    Panko._type_cast(converter, to)
+    Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, to)
   end
 end
 
@@ -23,14 +46,19 @@ def utc_panko_time
   type = ActiveRecord::ConnectionAdapters::PostgreSQL::OID::DateTime.new
   converter = ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter.new(type)
 
-  to = Panko._type_cast(converter, from)
+  writer = NoopWriter.new
+  attribute = Attribute.new(name_for_serialization: "key", type: converter)
+
+  # get the to value
+  Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, from)
+  to = writer.value
 
   Benchmark.run("#{tz}_#{type.class.name}_TypeCast") do
-    Panko._type_cast(converter, from)
+    Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, from)
   end
 
   Benchmark.run("#{tz}_#{type.class.name}_NoTypeCast") do
-    Panko._type_cast(converter, to)
+    Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, to)
   end
 end
 
@@ -40,18 +68,24 @@ def db_panko_time
 
   from = "2017-07-10 09:26:40.937392"
 
+  writer = NoopWriter.new
+  attribute = Attribute.new(name_for_serialization: "key", type: converter)
+
   Benchmark.run("Panko_Time_TypeCast") do
-    Panko._type_cast(converter, from)
+    Panko::Impl::AttributesWriter::ActiveRecord::ValuesWriter.write(writer, attribute, from)
   end
 end
 
 panko_type_convert ActiveRecord::Type::String, 1, "1"
-panko_type_convert ActiveRecord::Type::Text, 1, "1"
 panko_type_convert ActiveRecord::Type::Integer, "1", 1
+panko_type_convert ActiveRecord::Type::Text, 1, "1"
 panko_type_convert ActiveRecord::Type::Float, "1.23", 1.23
 panko_type_convert ActiveRecord::Type::Boolean, "true", true
 panko_type_convert ActiveRecord::Type::Boolean, "t", true
 
+db_panko_time
+utc_panko_time
+
 if check_if_exists "ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Json"
   panko_type_convert ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Json, '{"a":1}', '{"a":1}'
 end
@@ -61,5 +95,3 @@ def db_panko_time
 if check_if_exists "ActiveRecord::Type::Json"
   panko_type_convert ActiveRecord::Type::Json, '{"a":1}', '{"a":1}'
 end
-db_panko_time
-utc_panko_time