Declare macro in tasks

features/recipe_macro.feature

@@ -1,6 +1,6 @@
 Feature: `macro' recipe keyword
 
-  Scenario: declares a new keyword accepting task code
+  Scenario: declares a new recipe keyword accepting task code
     Given a recipe with:
       """
       macro :hello do
@@ -12,6 +12,16 @@ Feature: `macro' recipe keyword
     When I successfully execute the recipe
     Then the output must contain "hello macro"
 
+  Scenario: declares a new task keyword
+    Given a recipe with:
+      """
+      macro(:hello) { echo 'hello macro' }
+
+      task(:some_task) { hello }
+      """
+    When I successfully execute the recipe
+    Then the output must contain "hello macro"
+
   Scenario: supports arguments
     Given a recipe with:
       """

lib/producer/core/recipe.rb

@@ -3,7 +3,11 @@ module Producer
     class Recipe
       class << self
         def define_macro(name, block)
-          define_method(name) { |*args| task name, *args, &block }
+          [self, Task].each do |klass|
+            klass.class_eval do
+              define_method(name) { |*args| task name, *args, &block }
+            end
+          end
         end
 
         def compose_macro(name, macro, *base_args)

spec/producer/core/recipe_spec.rb

@@ -49,10 +49,15 @@ module Producer::Core
 
     describe '#macro' do
       it 'defines the new recipe keyword' do
-        recipe.macro :hello
+        recipe.macro(:hello) { }
         expect(recipe).to respond_to(:hello)
       end
 
+      it 'defines the new task keyword' do
+        recipe.macro(:hello) { }
+        expect { recipe.task(:some_task) { hello } }.not_to raise_error
+      end
+
       context 'when a defined macro is called' do
         before { recipe.macro(:hello) { :some_macro_code } }