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# frozen_string_literal: true
require "singleton"
require "ffi-gobject_introspection/lib"
require "ffi-gobject_introspection/strv"
require "ffi-gobject_introspection/g_error"
module GObjectIntrospection
# The Gobject Introspection Repository. This class is the point of
# access to the introspection typelibs.
# This class wraps the GIRepository struct.
class IRepository
def initialize
@pointer = Lib.g_irepository_get_default
end
def to_ptr
@pointer
end
include Singleton
def self.default
instance
end
def self.prepend_search_path(path)
Lib.g_irepository_prepend_search_path path
end
def self.type_tag_to_string(type)
Lib.g_type_tag_to_string type
end
def require(namespace, version = nil, flags = 0)
errpp = FFI::MemoryPointer.new(:pointer).write_pointer nil
Lib.g_irepository_require self, namespace, version, flags, errpp
errp = errpp.read_pointer
raise GError.new(errp).message unless errp.null?
end
def n_infos(namespace)
Lib.g_irepository_get_n_infos self, namespace
end
def info(namespace, index)
wrap_info Lib.g_irepository_get_info(self, namespace, index)
end
# Utility method
def infos(namespace)
(0..(n_infos(namespace) - 1)).map do |idx|
info namespace, idx
end
end
def find_by_name(namespace, name)
@name_cache ||= {}
@name_cache[[namespace, name]] ||=
wrap_info Lib.g_irepository_find_by_name(self, namespace, name)
end
def find_by_gtype(gtype)
raise ArgumentError, "Type #{gtype} is not a valid type" if gtype == 0
@gtype_cache ||= {}
@gtype_cache[gtype] ||= wrap_info Lib.g_irepository_find_by_gtype(self, gtype)
end
def dependencies(namespace)
strv_p = Lib.g_irepository_get_dependencies(self, namespace)
strv = Strv.new strv_p
strv.to_a
end
def shared_library(namespace)
Lib.g_irepository_get_shared_library self, namespace
end
def version(namespace)
Lib.g_irepository_get_version self, namespace
end
def self.wrap_ibaseinfo_pointer(ptr)
return nil if ptr.null?
type = Lib.g_base_info_get_type ptr
klass = TYPEMAP[type]
klass.wrap ptr
end
private
def wrap_info(ptr)
self.class.wrap_ibaseinfo_pointer ptr
end
end
end
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