Sha256: f1fec10aa75958d52c2f02b0d48b1efe7b2b0814712e89b87a6d9ca77961647c
Contents?: true
Size: 910 Bytes
Versions: 5
Compression:
Stored size: 910 Bytes
Contents
module Alf
module Engine
#
# Unwraps a tuple attribute
#
class Unwrap
include Cog
# @return [Enumerable] The operand
attr_reader :operand
# @return [AttrName] Name of the attribute to unwrap
attr_reader :attribute
# Creates a SetAttr instance
def initialize(operand, attribute, expr = nil, compiler = nil)
super(expr, compiler)
@operand = operand
@attribute = attribute
end
# (see Cog#each)
def _each
operand.each do |tuple|
tuple = tuple.dup
tuple = tuple.to_hash unless tuple.is_a?(Hash)
wrapped = tuple.delete(@attribute) || {}
wrapped = symbolize(wrapped)
tuple.merge!(wrapped)
yield tuple
end
end
def arguments
[ attribute ]
end
end # class Unwrap
end # module Engine
end # module Alf
Version data entries
5 entries across 5 versions & 1 rubygems