Class: Babl::Utils::DslProxy

Inherits:
Object
  • Object
show all
Defined in:
lib/babl/utils/dsl_proxy.rb

Overview

The idea is to make it possible to call method defined in block’s context in addition to DSL methods. Inspired from github.com/ms-ati/docile/blob/master/lib/docile/fallback_context_proxy.rb, but here we do not try to handle instance variables, because as far as I know there is no way to do it correctly.

Constant Summary collapse

NON_PROXIED_METHODS = 
Set[
    :__send__, :send, :object_id, :__id__, :equal?, :instance_eval, :instance_exec,
    :respond_to?, :method, :freeze
]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(receiver, fallback) ⇒ DslProxy

Returns a new instance of DslProxy.



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# File 'lib/babl/utils/dsl_proxy.rb', line 39

def initialize(receiver, fallback)
    @__receiver__ = receiver
    @__fallback__ = fallback
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object

rubocop:disable Style/MethodMissingSuper



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# File 'lib/babl/utils/dsl_proxy.rb', line 21

def method_missing(method, *args, &block)
    if @__receiver__.respond_to?(method)
        @__receiver__.__send__(method, *args, &block)
    else
        @__fallback__.__send__(method, *args, &block)
    end
end

Class Method Details

.eval(dsl, &block) ⇒ Object 



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# File 'lib/babl/utils/dsl_proxy.rb', line 35

def self.eval(dsl, &block)
    new(dsl, block.binding.receiver).instance_exec(&block)
end

Instance Method Details

#respond_to_missing?(method, include_private = false) ⇒ Boolean

rubocop:enable Style/MethodMissingSuper

Returns:

  • (Boolean) 


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# File 'lib/babl/utils/dsl_proxy.rb', line 30

def respond_to_missing?(method, include_private = false)
    @__receiver__.respond_to?(method, include_private) ||
        @__fallback__.respond_to?(method, include_private)
end