Class: Trailblazer::DSL::Build

Inherits:
Object
  • Object
show all
Defined in:
lib/trailblazer/dsl.rb

Overview

Boring DSL code that allows to set a skill class, or define it ad-hoc using a block. passing a constant always wipes out the existing class.

Used in Contract, Representer, Callback, ..

Instance Method Summary collapse

Instance Method Details

#call(options, name = nil, constant = nil, dsl_block, &block) ⇒ Object

Currently, adds .class only to classes. this could break builder instances?



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# File 'lib/trailblazer/dsl.rb', line 14

def call(options, name=nil, constant=nil, dsl_block, &block)
  # contract MyForm
  if name.is_a?(Class)
    constant = name
    name     = :default
  end

  is_instance = !(constant.kind_of?(Class) || dsl_block) # i don't like this magic too much, but since it's the only DSL method in TRB, it should be ok. # DISCUSS: options[:is_instance]

  path = path_name(options[:prefix], name, is_instance ? nil : "class") # "contract.default.class"

  if is_instance
    skill = constant
  else
    extended = options[:container][path] # Operation["contract.default.class"]
    extended = yield extended if extended && block_given?

    # only extend an existing skill class when NO constant was passed.
    constant = (extended || options[:class]) if constant.nil?# && block_given?

    skill = Class.new(constant)
    skill.class_eval(&dsl_block) if dsl_block
  end

  [path, skill]
end