Sha256: 796b36c5db256eb398e8fc091bba55529f2f6841a414f7a161da35c633c1d8a8
Contents?: true
Size: 876 Bytes
Versions: 17
Compression:
Stored size: 876 Bytes
Contents
module Datacaster
class ThenNode < Base
def initialize(left, then_caster, else_caster = nil)
@left = left
@then = then_caster
@else = else_caster
end
def else(else_caster)
raise ArgumentError.new("Datacaster: double else clause is not permitted") if @else
self.class.new(@left, @then, DefinitionDSL.expand(else_caster))
end
def cast(object, runtime:)
unless @else
raise ArgumentError.new('Datacaster: use "a & b" instead of "a.then(b)" when there is no else-clause')
end
left_result = @left.with_runtime(runtime).(object)
if left_result.valid?
@then.with_runtime(runtime).(left_result.value)
else
@else.with_runtime(runtime).(object)
end
end
def inspect
"#<Datacaster::ThenNode Then: #{@then.inspect} Else: #{@else.inspect}>"
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems