Module: JSI::BaseHash

Includes:

PathedHashNode

Defined in:

lib/jsi/base.rb

Overview

module extending a Base object when its instance is Hash-like (responds to #to_hash)

Constant Summary

Constants included from Hashlike

Hashlike::DESTRUCTIVE_METHODS, Hashlike::SAFE_KEY_ONLY_METHODS, Hashlike::SAFE_KEY_VALUE_METHODS, Hashlike::SAFE_METHODS

Instance Method Summary

• #[](property_name) ⇒ JSI::Base, Object

  The instance's subscript value at the given key property_name_.

• #[]=(property_name, value) ⇒ Object

  assigns the given property name of the instance to the given value.

Methods included from PathedHashNode

#each, #node_content_hash_pubsend, #to_hash

Methods included from Hashlike

#inspect, #merge, #pretty_print, #to_s, #update

Instance Method Details

#[](property_name) ⇒ JSI::Base, Object

Returns the instance's subscript value at the given key property_name_. if there is a subschema defined for that property on this JSI's schema, returns the instance's subscript as a JSI instiation of that subschema.

Parameters:

• property_name (String, Object) —

  the property name to subscript

Returns:

• (JSI::Base, Object) —

  the instance's subscript value at the given key property_name_. if there is a subschema defined for that property on this JSI's schema, returns the instance's subscript as a JSI instiation of that subschema.

# File 'lib/jsi/base.rb', line 370

def [](property_name)
  instance_property_key_ = jsi_instance_hash_pubsend(:key?, property_name)
  if !instance_property_key_
    deref do |deref_jsi|
      return deref_jsi[property_name]
    end
  end
  instance_property_value_ = jsi_instance_sub(property_name)
  memoize(:[], property_name, instance_property_value_, instance_property_key_) do |property_name_, instance_property_value, instance_property_key|
    begin
      property_schema = schema.subschema_for_property(property_name_)
      property_schema = property_schema && property_schema.match_to_instance(instance_property_value)

      if !instance_property_key && property_schema && property_schema.schema_object.key?('default')
        # use the default value
        default = property_schema.schema_object['default']
        if default.respond_to?(:to_hash) || default.respond_to?(:to_ary)
          # we are using #dup so that we get a modified copy of self, in which we set dup[property_name_]=default.
          # this avoids duplication of code with #modified_copy and below in #[] to handle pathing and such.
          dup.tap { |o| o[property_name_] = default }[property_name_]
        else
          default
        end
      elsif property_schema && (instance_property_value.respond_to?(:to_hash) || instance_property_value.respond_to?(:to_ary))
        class_for_schema(property_schema).new(Base::NOINSTANCE, jsi_document: @jsi_document, jsi_ptr: @jsi_ptr[property_name_], ancestor_jsi: @ancestor_jsi || self)
      else
        instance_property_value
      end
    end
  end
end

#[]=(property_name, value) ⇒ Object

assigns the given property name of the instance to the given value. if the value is a JSI, its instance is assigned.

Parameters:

• property_name (Object) —

  this should generally be a String, but JSI does not enforce any constraint on it.

• value (Object) —

  the value to be assigned to the given subscript property_name

# File 'lib/jsi/base.rb', line 408

def []=(property_name, value)
  subscript_assign(property_name, value)
end