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# frozen_string_literal: true
module GraphQL
class Schema
# This class joins an object type to an abstract type (interface or union) of which
# it is a member.
class TypeMembership
# @return [Class<GraphQL::Schema::Object>]
attr_accessor :object_type
# @return [Class<GraphQL::Schema::Union>, Module<GraphQL::Schema::Interface>]
attr_reader :abstract_type
# @return [Hash]
attr_reader :options
# Called when an object is hooked up to an abstract type, such as {Schema::Union.possible_types}
# or {Schema::Object.implements} (for interfaces).
#
# @param abstract_type [Class<GraphQL::Schema::Union>, Module<GraphQL::Schema::Interface>]
# @param object_type [Class<GraphQL::Schema::Object>]
# @param options [Hash] Any options passed to `.possible_types` or `.implements`
def initialize(abstract_type, object_type, **options)
@abstract_type = abstract_type
@object_type = object_type
@options = options
end
# @return [Boolean] if false, {#object_type} will be treated as _not_ a member of {#abstract_type}
def visible?(ctx)
warden = Warden.from_context(ctx)
(@object_type.respond_to?(:visible?) ? warden.visible_type?(@object_type, ctx) : true) &&
(@abstract_type.respond_to?(:visible?) ? warden.visible_type?(@abstract_type, ctx) : true)
end
def graphql_name
"#{@object_type.graphql_name}.#{@abstract_type.kind.interface? ? "implements" : "belongsTo" }.#{@abstract_type.graphql_name}"
end
def path
graphql_name
end
def inspect
"#<#{self.class} #{@object_type.inspect} => #{@abstract_type.inspect}>"
end
alias :type_class :itself
end
end
end
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