Sha256: 11a3e2eb8fa5f1e0bb09d673c982701cef7abf84d63be28a12a5883277f65d60
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Size: 1.7 KB
Versions: 11
Compression:
Stored size: 1.7 KB
Contents
module DataMapper
class DescendantSet
include Enumerable
# Initialize a DescendantSet instance
#
# @param [#to_ary] descendants
# initialize with the descendants
#
# @api private
def initialize(descendants = [])
@descendants = SubjectSet.new(descendants)
end
# Copy a DescendantSet instance
#
# @param [DescendantSet] original
# the original descendants
#
# @api private
def initialize_copy(original)
@descendants = @descendants.dup
end
# Add a descendant
#
# @param [Module] descendant
#
# @return [DescendantSet]
# self
#
# @api private
def <<(descendant)
@descendants << descendant
self
end
# Remove a descendant
#
# Also removes from all descendants
#
# @param [Module] descendant
#
# @return [DescendantSet]
# self
#
# @api private
def delete(descendant)
@descendants.delete(descendant)
each { |d| d.descendants.delete(descendant) }
end
# Iterate over each descendant
#
# @yield [descendant]
# @yieldparam [Module] descendant
#
# @return [DescendantSet]
# self
#
# @api private
def each
@descendants.each do |descendant|
yield descendant
descendant.descendants.each { |dd| yield dd }
end
self
end
# Test if there are any descendants
#
# @return [Boolean]
#
# @api private
def empty?
@descendants.empty?
end
# Removes all entries and returns self
#
# @return [DescendantSet] self
#
# @api private
def clear
@descendants.clear
end
end # class DescendantSet
end # module DataMapper
Version data entries
11 entries across 11 versions & 4 rubygems