Module: Eqq

Extended by:
Buildable
Defined in:
lib/eqq.rb,
lib/eqq.rb,
lib/eqq/version.rb,
lib/eqq/buildable.rb

Overview

Pattern objects builder

Defined Under Namespace

Modules: Buildable Classes: Error, InvalidProductError

Constant Summary collapse

VERSION =

This will be same as latest published gem version

'0.1.1'

Constants included from Buildable

Buildable::INSPECTION_FALLBACK

Class Method Summary collapse

Methods included from Buildable

AND, ANYTHING, BOOLEAN, CAN, EQ, NAND, NEVER, NIL, NOR, NOT, OR, QUIET, RESCUE, SAME, SEND, XOR, define_inspect_on, safe_inspect_for, validate_patterns

Class Method Details

.build(&block) ⇒ Proc

In the block scope, all builder methods can be used without receiver

Returns:

  • (Proc)

Raises:



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# File 'lib/eqq.rb', line 40

def build(&block)
  raise ArgumentError, 'might be misused the `Eqq.build` in your code' unless block

  pattern = DSLScope.new.instance_exec(&block)
  raise InvalidProductError, 'might be misused the `Eqq.build` in your code' unless satisfy?(pattern)

  pattern
end

.pattern?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eqq.rb', line 18

def pattern?(object)
  case object
  when Proc, Method
    object.arity == 1
  else
    begin
      object.respond_to?(:===)
    rescue NoMethodError
      false
    end
  end
end

.satisfy?(object) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/eqq.rb', line 32

def satisfy?(object)
  (Proc === object) && object.lambda? && (object.arity == 1) && object.respond_to?(:inspect)
end