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Versions: 9
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Contents
module SoberSwag
class OutputObject
##
# A single field in an output object.
# Later used to make an actual serializer from this.
class Field
##
# @param name [Symbol] the name of this field
# @param serializer [SoberSwag::Serializer::Base, Proc, Lambda] how to serialize
# the value in this field.
# If given a `Proc` or `Lambda`, the `Proc` or `Lambda` should return
# an instance of SoberSwag::Serializer::Base when called.
# @param from [Symbol] an optional parameter specifying
# that this field should be plucked "from" another
# attribute of a ruby object
# @param block [Proc] a proc to get this field from a serialized
# object. If not given, will try to grab an attribute
# with the same name, *or* with the name of `from:` if that was sent.
def initialize(name, serializer, from: nil, &block)
@name = name
@root_serializer = serializer
@from = from
@block = block
end
##
# @return [Symbol] name of this field.
attr_reader :name
##
# @return [SoberSwag::Serializer::Base]
def serializer
@serializer ||= resolved_serializer.serializer.via_map(&transform_proc)
end
##
# @return [SoberSwag::Serializer::Base]
def resolved_serializer
if @root_serializer.is_a?(Proc)
@root_serializer.call
else
@root_serializer
end
end
private
##
# @return [Proc]
def transform_proc
return @transform_proc if defined?(@transform_proc)
return @transform_proc = @block if @block
key = @from || @name
@transform_proc = proc do |object, _|
if object.respond_to?(key)
object.public_send(key)
else
object[key]
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems