Module: JSI::SchemaClasses

Extended by:
Util::Memoize
Defined in:
lib/jsi/schema_classes.rb

Overview

this module is just a namespace for schema classes.

Class Method Summary collapse

Methods included from Util::Memoize

jsi_clear_memo, jsi_memoize

Class Method Details

.accessor_module_for_schema(schema, conflicting_modules:) ⇒ Module

Returns a module of accessors (setters and getters) for described property names of the given schema.

Parameters:

  • schema (JSI::Schema) —

    a schema for which to define accessors for any described property names

  • conflicting_modules (Enumerable<Module>) —

    an array of modules (or classes) which may be used alongside the accessor module. methods defined by any conflicting_module will not be defined as accessors.

Returns:

  • (Module) —

    a module of accessors (setters and getters) for described property names of the given schema



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# File 'lib/jsi/schema_classes.rb', line 82

def accessor_module_for_schema(schema, conflicting_modules: )
  unless schema.is_a?(JSI::Schema)
    raise(JSI::Schema::NotASchemaError, "not a schema: #{schema.pretty_inspect.chomp}")
  end
  jsi_memoize(:accessor_module_for_schema, schema, conflicting_modules) do |schema, conflicting_modules|
    Module.new.tap do |m|
      m.module_eval do
        conflicting_instance_methods = (conflicting_modules + [m]).map do |mod|
          mod.instance_methods + mod.private_instance_methods
        end.inject(Set.new, &:|)
        accessors_to_define = schema.described_object_property_names.map(&:to_s) - conflicting_instance_methods.map(&:to_s)
        accessors_to_define.each do |property_name|
          define_method(property_name) do
            self[property_name]
          end
          define_method("#{property_name}=") do |value|
            self[property_name] = value
          end
        end
      end
    end
  end
end

.class_for_schemas(schema_objects) ⇒ Object

see JSI.class_for_schemas



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# File 'lib/jsi/schema_classes.rb', line 35

def class_for_schemas(schema_objects)
  schemas = schema_objects.map { |schema_object| JSI::Schema.from_object(schema_object) }.to_set
  jsi_memoize(:class_for_schemas, schemas) do |schemas|
    Class.new(Base).instance_exec(schemas) do |schemas|
      define_singleton_method(:jsi_class_schemas) { schemas }
      define_method(:jsi_schemas) { schemas }
      schemas.each { |schema| include(schema.jsi_schema_module) }
      jsi_class = self
      define_method(:jsi_class) { jsi_class }

      self
    end
  end
end

.module_for_schema(schema_object) ⇒ Object

a module for the given schema, with accessor methods for any object property names the schema identifies (see JSI::Schema#described_object_property_names).

defines a singleton method #schema to access the JSI::Schema this module represents, and extends the module with JSI::SchemaModule.



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# File 'lib/jsi/schema_classes.rb', line 55

def module_for_schema(schema_object)
  schema = JSI::Schema.from_object(schema_object)
  jsi_memoize(:module_for_schema, schema) do |schema|
    Module.new.tap do |m|
      m.module_eval do
        define_singleton_method(:schema) { schema }

        extend SchemaModule

        include JSI::SchemaClasses.accessor_module_for_schema(schema, conflicting_modules: [JSI::Base, JSI::PathedArrayNode, JSI::PathedHashNode])

        @possibly_schema_node = schema
        extend(SchemaModulePossibly)
        schema.jsi_schemas.each do |schema_schema|
          extend(JSI::SchemaClasses.accessor_module_for_schema(schema_schema, conflicting_modules: [Module, SchemaModule, SchemaModulePossibly]))
        end
      end
    end
  end
end