38 lines
757 B
Ruby
38 lines
757 B
Ruby
module Faraday
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class Middleware
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extend MiddlewareRegistry
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class << self
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attr_accessor :load_error
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private :load_error=
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end
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self.load_error = nil
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# Executes a block which should try to require and reference dependent libraries
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def self.dependency(lib = nil)
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lib ? require(lib) : yield
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rescue LoadError, NameError => error
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self.load_error = error
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end
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def self.new(*)
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raise "missing dependency for #{self}: #{load_error.message}" unless loaded?
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super
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end
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def self.loaded?
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load_error.nil?
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end
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def self.inherited(subclass)
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super
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subclass.send(:load_error=, self.load_error)
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end
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def initialize(app = nil)
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@app = app
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end
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end
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end
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