Class: Lutaml::Lml::LiteralValue

Inherits:
Model::Type::Value
  • Object
show all
Defined in:
lib/lutaml/lml/literal_value.rb

Overview

The type of an LML attribute literal: a scalar, a list, or a map.

This exists as a subclass rather than using Lutaml::Model::Type::Value directly because lutaml-model's key-value serializer tests the declared attribute type with a strict attribute_type < Type::Value. Type::Value is not a strict subclass of itself, so declaring it hands the serializer the raw wrapper object: JSON calls to_json(state) on it and raises ArgumentError, and Psych emits a !ruby/object tag that from_yaml then refuses to load. A subclass puts the attribute on the working path, where the serializer asks the wrapper for its value instead.

Deleting this class needs two upstream changes, not one: that < widened to <=, and the serializer no longer re-wrapping a value it already wrapped. Widening < alone still leaves the nested wrapper below.

Instance Method Summary collapse

Instance Method Details

#value ⇒ Object

The serializer re-wraps an already-wrapped value before asking it for a format, so #value has to see through that extra layer. Every to_ method lutaml-model generates reads through here, which is why this is one override rather than one per format.



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# File 'lib/lutaml/lml/literal_value.rb', line 26

def value
  wrapped = super
  wrapped.is_a?(LiteralValue) ? wrapped.value : wrapped
end