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Versions: 16
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Contents
# Temp until https://github.com/opal/opal/pull/596
require 'set'
class Set
def delete(o)
@hash.delete(o)
end
def delete?(o)
if include?(o)
delete(o)
else
nil
end
end
def delete_if
block_given? or return enum_for(__method__)
# @hash.delete_if should be faster, but using it breaks the order
# of enumeration in subclasses.
select { |o| yield o }.each { |o| @hash.delete(o) }
self
end
def to_a
@hash.keys
end
end
module Volt
class Dependency
def initialize
@dependencies = Set.new
end
def depend
# If there is no @dependencies, don't depend because it has been removed
return unless @dependencies
current = Computation.current
if current
added = @dependencies.add?(current)
if added
# puts "Added #{self.inspect} to #{current.inspect}"
current.on_invalidate do
# If @dependencies is nil, this Dependency has been removed
@dependencies.delete(current) if @dependencies
end
end
end
end
def changed!
deps = @dependencies
# If no deps, dependency has been removed
return unless deps
@dependencies = Set.new
deps.each(&:invalidate!)
end
# Called when a dependency is no longer needed
def remove
changed!
@dependencies = nil
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems