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Contents
module Middleman
module CoreExtensions
module Collections
class LazyCollectorStep < BasicObject
DELEGATE = [:hash, :eql?].freeze
def initialize(name, args, block, parent=nil)
@name = name
@args = args
@block = block
@parent = parent
@result = nil
leaves << self
end
def leaves
@parent.leaves
end
def value(ctx=nil)
data = @parent.value(ctx)
original_block = @block
if original_block
b = if ctx
::Proc.new do |*args|
ctx.instance_exec(*args, &original_block)
end
else
original_block
end
end
data.send(@name, *@args.deep_dup, &b)
end
def method_missing(name, *args, &block)
return ::Kernel.send(name, *args, &block) if DELEGATE.include? name
leaves.delete self
LazyCollectorStep.new(name, args, block, self)
end
end
end
end
end
Version data entries
20 entries across 20 versions & 2 rubygems