From 40ed61792f8986410639f73bdf7aba950a675c8e Mon Sep 17 00:00:00 2001
From: Vladimir Sazhin <vladimir.sazhin@gmail.com>
Date: Mon, 10 Jun 2019 12:38:41 +0300
Subject: [PATCH 1/2] Fix #attribute_provided? behavior

---
 README.md                        | 17 +++++++++++++----
 lib/tainbox/attribute_definer.rb |  4 ++--
 spec/tainbox_spec.rb             |  2 +-
 3 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index f2f508c..19298b4 100644
--- a/README.md
+++ b/README.md
@@ -64,18 +64,27 @@ end
 
 ### #attribute_provided?
 
-Attribute is considered provided if its setter was explicitly invoked via a setter, `.new`, or `#attributes=` or it has a default value.
+Attribute is considered provided if its setter was explicitly invoked via a setter, `.new`, or `#attributes=`.
 
 ``` ruby
 class Person
   include Tainbox
-  attribute :name, default: 'John'
+  attribute :name, default: 'Anonymous'
   attribute :age
 end
 
-person = Person.new
-person.attribute_provided?(:age) # => false
+person = Person.new('age' => '24')
+
+person.attribute_provided?(:name) # => false
+person.attribute_provided?(:age) # => true
+
+person.name = 'John'
 person.attribute_provided?(:name) # => true
+person.attribute_provided?(:age) # => true
+
+person.attributes = {}
+person.attribute_provided?(:name) # => false
+person.attribute_provided?(:age) # => false
 ```
 
 ### Disabling automatic attribute readers and writers
diff --git a/lib/tainbox/attribute_definer.rb b/lib/tainbox/attribute_definer.rb
index 0be57e5..fb1af12 100644
--- a/lib/tainbox/attribute_definer.rb
+++ b/lib/tainbox/attribute_definer.rb
@@ -41,14 +41,14 @@ def define_setter
       end
 
       define_method("tainbox_set_default_#{attribute}") do
+        tainbox_unregister_attribute_provided(attribute)
+
         if args.has_key?(:default)
-          tainbox_register_attribute_provided(attribute)
           value = args[:default].deep_dup
           value = Tainbox::DeferredValue.new(value) if value.is_a?(Proc)
           instance_variable_set(:"@tainbox_#{attribute}", value)
 
         else
-          tainbox_unregister_attribute_provided(attribute)
           instance_variable_set(:"@tainbox_#{attribute}", nil)
         end
       end
diff --git a/spec/tainbox_spec.rb b/spec/tainbox_spec.rb
index df45762..215f982 100644
--- a/spec/tainbox_spec.rb
+++ b/spec/tainbox_spec.rb
@@ -23,7 +23,7 @@ def name
     person.attributes = {}
     expect(person.name).to eq('Oliver')
     expect(person.age).to be_nil
-    expect(person.attribute_provided?(:name)).to be_truthy
+    expect(person.attribute_provided?(:name)).to be_falsey
     expect(person.attribute_provided?(:age)).to be_falsey
 
     expect(person.attributes).to eq(name: 'Oliver', age: nil)

From 6821ff6d7cf108a0e349aac4b79a599c160e9baf Mon Sep 17 00:00:00 2001
From: Vladimir Sazhin <vladimir.sazhin@gmail.com>
Date: Mon, 10 Jun 2019 13:22:27 +0300
Subject: [PATCH 2/2] New #provided_attributes method

---
 README.md                       | 5 ++++-
 lib/tainbox/instance_methods.rb | 4 ++++
 spec/tainbox_spec.rb            | 4 ++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 19298b4..587a279 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ def name=(value)
 end
 ```
 
-### #attribute_provided?
+### `#provided_attributes` and `#attribute_provided?`
 
 Attribute is considered provided if its setter was explicitly invoked via a setter, `.new`, or `#attributes=`.
 
@@ -75,14 +75,17 @@ end
 
 person = Person.new('age' => '24')
 
+person.provided_attributes # => [:age]
 person.attribute_provided?(:name) # => false
 person.attribute_provided?(:age) # => true
 
 person.name = 'John'
+person.provided_attributes # => [:name, :age]
 person.attribute_provided?(:name) # => true
 person.attribute_provided?(:age) # => true
 
 person.attributes = {}
+person.provided_attributes # => []
 person.attribute_provided?(:name) # => false
 person.attribute_provided?(:age) # => false
 ```
diff --git a/lib/tainbox/instance_methods.rb b/lib/tainbox/instance_methods.rb
index ab86ac1..e93adf7 100644
--- a/lib/tainbox/instance_methods.rb
+++ b/lib/tainbox/instance_methods.rb
@@ -41,6 +41,10 @@ def attributes=(attributes)
     end
   end
 
+  def provided_attributes
+    self.class.tainbox_attributes & tainbox_provided_attributes
+  end
+
   def attribute_provided?(attribute)
     tainbox_provided_attributes.include?(attribute.to_sym)
   end
diff --git a/spec/tainbox_spec.rb b/spec/tainbox_spec.rb
index 215f982..3896346 100644
--- a/spec/tainbox_spec.rb
+++ b/spec/tainbox_spec.rb
@@ -19,6 +19,7 @@ def name
     expect(person.age).to eq(24)
     expect(person.attribute_provided?(:name)).to be_truthy
     expect(person.attribute_provided?(:age)).to be_truthy
+    expect(person.provided_attributes).to eq(%i[name age])
 
     person.attributes = {}
     expect(person.name).to eq('Oliver')
@@ -27,11 +28,14 @@ def name
     expect(person.attribute_provided?(:age)).to be_falsey
 
     expect(person.attributes).to eq(name: 'Oliver', age: nil)
+    expect(person.provided_attributes).to be_empty
 
     person.age = 10
     expect(person.age).to eq(10)
     expect(person.attribute_provided?(:age)).to be_truthy
 
+    expect(person.provided_attributes).to eq(%i[age])
+
     expect(person.as_json).to eq('name' => 'Oliver', 'age' => 10)
     expect(person.as_json(only: :name)).to eq('name' => 'Oliver')
     expect(person.as_json(except: :name)).to eq('age' => 10)