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|
/* -*- mode: c; indent-tabs-mode: t; c-basic-offset: 8; -*- */
static gpointer _sv_to_class_struct_pointer (SV *sv, GPerlI11nInvocationInfo *iinfo);
static void _store_enum (GIEnumInfo * info, gint value, GIArgument * arg);
static gint _retrieve_enum (GIEnumInfo * info, GIArgument * arg);
static gpointer
instance_sv_to_pointer (GICallableInfo *info, SV *sv, GPerlI11nInvocationInfo *iinfo)
{
// We do *not* own container.
GIBaseInfo *container = g_base_info_get_container (info);
GIInfoType info_type = g_base_info_get_type (container);
gpointer pointer = NULL;
/* FIXME: Much of this code is duplicated in sv_to_interface. */
dwarn ("container name = %s, info type = %d (%s)\n",
g_base_info_get_name (container),
info_type, g_info_type_to_string (info_type));
switch (info_type) {
case GI_INFO_TYPE_OBJECT:
case GI_INFO_TYPE_INTERFACE:
pointer = gperl_get_object (sv);
dwarn (" -> object pointer: %p\n", pointer);
break;
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_UNION:
{
GType type = get_gtype ((GIRegisteredTypeInfo *) container);
if (!type || type == G_TYPE_NONE) {
if (g_struct_info_is_gtype_struct (container)) {
pointer = _sv_to_class_struct_pointer (sv, iinfo);
}
if (!pointer) {
dwarn (" -> untyped record\n");
pointer = sv_to_struct (GI_TRANSFER_NOTHING,
container,
info_type,
sv);
}
} else if (g_type_is_a (type, G_TYPE_POINTER)) {
dwarn (" -> pointer\n");
pointer = sv_to_struct (GI_TRANSFER_NOTHING,
container,
info_type,
sv);
} else {
dwarn (" -> boxed: type=%s (%"G_GSIZE_FORMAT")\n",
g_type_name (type), type);
pointer = gperl_get_boxed_check (sv, type);
}
dwarn (" -> record pointer: %p\n", pointer);
break;
}
default:
ccroak ("Don't know how to handle info type %d for instance SV", info_type);
}
return pointer;
}
/* This may call Perl code (via gperl_new_boxed, gperl_sv_from_value,
* struct_to_sv), so it needs to be wrapped with PUTBACK/SPAGAIN by the
* caller. */
static SV *
instance_pointer_to_sv (GICallableInfo *info, gpointer pointer)
{
// We do *not* own container.
GIBaseInfo *container = g_base_info_get_container (info);
GIInfoType info_type = g_base_info_get_type (container);
SV *sv = NULL;
/* FIXME: Much of this code is duplicated in interface_to_sv. */
dwarn ("container name = %s, info type = %d (%s)\n",
g_base_info_get_name (container),
info_type, g_info_type_to_string (info_type));
switch (info_type) {
case GI_INFO_TYPE_OBJECT:
case GI_INFO_TYPE_INTERFACE:
sv = gperl_new_object (pointer, FALSE);
dwarn (" -> object SV: %p\n", sv);
break;
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_UNION:
{
GType type = get_gtype ((GIRegisteredTypeInfo *) container);
if (!type || type == G_TYPE_NONE) {
dwarn (" -> untyped record\n");
sv = struct_to_sv (container, info_type, pointer, FALSE);
} else {
dwarn (" -> boxed: type=%s (%"G_GSIZE_FORMAT")\n",
g_type_name (type), type);
sv = gperl_new_boxed (pointer, type, FALSE);
}
dwarn (" -> record pointer: %p\n", pointer);
break;
}
default:
ccroak ("Don't know how to handle info type %d for instance pointer", info_type);
}
return sv;
}
static void
sv_to_interface (GIArgInfo * arg_info,
GITypeInfo * type_info,
GITransfer transfer,
gboolean may_be_null,
SV * sv,
GIArgument * arg,
GPerlI11nInvocationInfo * invocation_info)
{
GIBaseInfo *interface;
GIInfoType info_type;
interface = g_type_info_get_interface (type_info);
if (!interface)
ccroak ("Could not convert sv %p to pointer", sv);
info_type = g_base_info_get_type (interface);
dwarn ("interface = %p (%s), type = %d (%s)\n",
interface, g_base_info_get_name (interface),
info_type, g_info_type_to_string (info_type));
switch (info_type) {
case GI_INFO_TYPE_OBJECT:
case GI_INFO_TYPE_INTERFACE:
if (may_be_null && !gperl_sv_is_defined (sv)) {
arg->v_pointer = NULL;
} else {
/* GParamSpecs are represented as classes of
* fundamental type, but gperl_get_object_check cannot
* handle this. So we do it here. */
if (info_type == GI_INFO_TYPE_OBJECT &&
g_object_info_get_fundamental (interface))
{
GType type = G_TYPE_FUNDAMENTAL (get_gtype (interface));
switch (type) {
case G_TYPE_PARAM:
arg->v_pointer = SvGParamSpec (sv);
break;
default:
ccroak ("sv_to_interface: Don't know how to handle fundamental type %s (%lu)\n",
g_type_name (type), type);
}
} else {
arg->v_pointer = gperl_get_object_check (sv, get_gtype (interface));
if (arg->v_pointer && transfer == GI_TRANSFER_NOTHING &&
((GObject *) arg->v_pointer)->ref_count == 1 &&
SvTEMP (sv) && SvREFCNT (SvRV (sv)) == 1)
{
cwarn ("*** Asked to hand out object without ownership transfer, "
"but object is about to be destroyed; "
"adding an additional reference for safety");
transfer = GI_TRANSFER_EVERYTHING;
}
if (transfer >= GI_TRANSFER_CONTAINER) {
g_object_ref (arg->v_pointer);
}
}
}
break;
case GI_INFO_TYPE_UNION:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_BOXED:
{
gboolean need_value_semantics =
arg_info && g_arg_info_is_caller_allocates (arg_info)
&& !g_type_info_is_pointer (type_info);
GType type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (!type || type == G_TYPE_NONE) {
dwarn (" -> untyped record\n");
g_assert (!need_value_semantics);
if (g_struct_info_is_gtype_struct (interface)) {
arg->v_pointer = _sv_to_class_struct_pointer (sv, invocation_info);
} else {
const gchar *namespace, *name, *package;
GType parent_type;
/* Find out whether this untyped record is a member of
* a boxed union before using raw hash-to-struct
* conversion. */
name = g_base_info_get_name (interface);
namespace = g_base_info_get_namespace (interface);
package = get_package_for_basename (namespace);
parent_type = package ? find_union_member_gtype (package, name) : 0;
if (parent_type && parent_type != G_TYPE_NONE) {
arg->v_pointer = gperl_get_boxed_check (
sv, parent_type);
if (GI_TRANSFER_EVERYTHING == transfer)
arg->v_pointer =
g_boxed_copy (parent_type,
arg->v_pointer);
} else {
arg->v_pointer = sv_to_struct (transfer,
interface,
info_type,
sv);
}
}
}
else if (type == G_TYPE_CLOSURE) {
/* FIXME: User cannot supply user data. */
dwarn (" -> closure\n");
g_assert (!need_value_semantics);
arg->v_pointer = gperl_closure_new (sv, NULL, FALSE);
}
else if (type == G_TYPE_VALUE) {
GValue *gvalue = SvGValueWrapper (sv);
dwarn (" -> value\n");
if (!gvalue)
ccroak ("Cannot convert arbitrary SV to GValue");
if (need_value_semantics) {
g_value_init (arg->v_pointer, G_VALUE_TYPE (gvalue));
g_value_copy (gvalue, arg->v_pointer);
} else {
if (GI_TRANSFER_EVERYTHING == transfer) {
arg->v_pointer = g_new0 (GValue, 1);
g_value_init (arg->v_pointer, G_VALUE_TYPE (gvalue));
g_value_copy (gvalue, arg->v_pointer);
} else {
arg->v_pointer = gvalue;
}
}
}
else if (g_type_is_a (type, G_TYPE_BOXED)) {
dwarn (" -> boxed: type=%s, name=%s, caller-allocates=%d, is-pointer=%d\n",
g_type_name (type),
g_base_info_get_name (interface),
(arg_info ? g_arg_info_is_caller_allocates (arg_info) : INT_MAX),
g_type_info_is_pointer (type_info));
if (need_value_semantics) {
if (may_be_null && !gperl_sv_is_defined (sv)) {
/* Do nothing. */
} else {
gsize n_bytes = g_struct_info_get_size (interface);
gpointer mem = gperl_get_boxed_check (sv, type);
memmove (arg->v_pointer, mem, n_bytes);
}
} else {
if (may_be_null && !gperl_sv_is_defined (sv)) {
arg->v_pointer = NULL;
} else {
arg->v_pointer = gperl_get_boxed_check (sv, type);
if (GI_TRANSFER_EVERYTHING == transfer)
arg->v_pointer = g_boxed_copy (
type, arg->v_pointer);
}
}
}
#if GLIB_CHECK_VERSION (2, 24, 0)
else if (g_type_is_a (type, G_TYPE_VARIANT)) {
dwarn (" -> variant type\n");
g_assert (!need_value_semantics);
arg->v_pointer = SvGVariant (sv);
if (GI_TRANSFER_EVERYTHING == transfer)
g_variant_ref (arg->v_pointer);
}
#endif
else {
ccroak ("Cannot convert SV to record value of unknown type %s (%" G_GSIZE_FORMAT ")",
g_type_name (type), type);
}
break;
}
case GI_INFO_TYPE_ENUM:
{
gint value;
GType type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (G_TYPE_NONE == type) {
ccroak ("Could not handle unknown enum type %s",
g_base_info_get_name (interface));
}
value = gperl_convert_enum (type, sv);
_store_enum (interface, value, arg);
break;
}
case GI_INFO_TYPE_FLAGS:
{
gint value;
GType type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (G_TYPE_NONE == type) {
ccroak ("Could not handle unknown flags type %s",
g_base_info_get_name (interface));
}
value = gperl_convert_flags (type, sv);
_store_enum (interface, value, arg);
break;
}
case GI_INFO_TYPE_CALLBACK:
arg->v_pointer = sv_to_callback (arg_info, type_info, sv,
invocation_info);
break;
default:
ccroak ("sv_to_interface: Could not handle info type %s (%d)",
g_info_type_to_string (info_type),
info_type);
}
g_base_info_unref ((GIBaseInfo *) interface);
}
/* This may call Perl code (via gperl_new_boxed, gperl_sv_from_value,
* struct_to_sv), so it needs to be wrapped with PUTBACK/SPAGAIN by the
* caller. */
static SV *
interface_to_sv (GITypeInfo* info,
GIArgument *arg,
gboolean own,
GPerlI11nMemoryScope mem_scope,
GPerlI11nInvocationInfo *iinfo)
{
GIBaseInfo *interface;
GIInfoType info_type;
SV *sv = NULL;
dwarn ("arg %p, info %p\n", arg, info);
dwarn (" is pointer: %d\n", g_type_info_is_pointer (info));
interface = g_type_info_get_interface (info);
if (!interface)
ccroak ("Could not convert arg %p to SV", arg);
info_type = g_base_info_get_type (interface);
dwarn (" info type: %d (%s)\n",
info_type, g_info_type_to_string (info_type));
switch (info_type) {
case GI_INFO_TYPE_OBJECT:
/* GParamSpecs are represented as classes of fundamental type,
* but gperl_new_object cannot handle this. So we do it
* here. */
if (g_object_info_get_fundamental (interface)) {
GType type = G_TYPE_FUNDAMENTAL (get_gtype (interface));
switch (type) {
case G_TYPE_PARAM:
sv = newSVGParamSpec (arg->v_pointer); /* does ref & sink */
/* FIXME: What if own=true and the pspec is not
* floating? Then we would leak. We do not
* have the API to detect this. But it is
* probably also quite rare. */
break;
default:
ccroak ("interface_to_sv: Don't know how to handle fundamental type %s (%lu)\n",
g_type_name (type), type);
}
} else {
sv = gperl_new_object (arg->v_pointer, own);
}
break;
case GI_INFO_TYPE_INTERFACE:
sv = gperl_new_object (arg->v_pointer, own);
break;
case GI_INFO_TYPE_UNION:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_BOXED:
{
/* FIXME: What about pass-by-value here? */
GType type;
type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (!type || type == G_TYPE_NONE) {
dwarn (" -> untyped record\n");
sv = struct_to_sv (interface, info_type, arg->v_pointer, own);
}
else if (type == G_TYPE_VALUE) {
dwarn (" -> value\n");
sv = gperl_sv_from_value (arg->v_pointer);
if (own)
g_boxed_free (type, arg->v_pointer);
}
else if (g_type_is_a (type, G_TYPE_BOXED)) {
dwarn (" -> boxed: pointer=%p, type=%"G_GSIZE_FORMAT" (%s), own=%d\n",
arg->v_pointer, type, g_type_name (type), own);
switch (mem_scope) {
case GPERL_I11N_MEMORY_SCOPE_TEMPORARY:
g_assert (own == TRUE);
sv = gperl_new_boxed_copy (arg->v_pointer, type);
break;
default:
sv = gperl_new_boxed (arg->v_pointer, type, own);
}
}
else if (g_type_is_a (type, G_TYPE_POINTER)) {
dwarn (" -> pointer: pointer=%p, type=%"G_GSIZE_FORMAT" (%s), own=%d\n",
arg->v_pointer, type, g_type_name (type), own);
sv = struct_to_sv (interface, info_type, arg->v_pointer, own);
}
#if GLIB_CHECK_VERSION (2, 24, 0)
else if (g_type_is_a (type, G_TYPE_VARIANT)) {
dwarn (" -> variant\n");
sv = own ? newSVGVariant_noinc (arg->v_pointer)
: newSVGVariant (arg->v_pointer);
}
#endif
else {
ccroak ("Cannot convert record value of unknown type %s (%" G_GSIZE_FORMAT ") to SV",
g_type_name (type), type);
}
break;
}
case GI_INFO_TYPE_ENUM:
{
gint value;
GType type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (G_TYPE_NONE == type) {
ccroak ("Could not handle unknown enum type %s",
g_base_info_get_name (interface));
}
value = _retrieve_enum (interface, arg);
sv = gperl_convert_back_enum (type, value);
break;
}
case GI_INFO_TYPE_FLAGS:
{
gint value;
GType type = get_gtype ((GIRegisteredTypeInfo *) interface);
if (G_TYPE_NONE == type) {
ccroak ("Could not handle unknown flags type %s",
g_base_info_get_name (interface));
}
value = _retrieve_enum (interface, arg);
sv = gperl_convert_back_flags (type, value);
break;
}
case GI_INFO_TYPE_CALLBACK:
sv = callback_to_sv (interface, arg->v_pointer, iinfo);
break;
default:
ccroak ("interface_to_sv: Don't know how to handle info type %s (%d)",
g_info_type_to_string (info_type),
info_type);
}
g_base_info_unref ((GIBaseInfo *) interface);
return sv;
}
/* ------------------------------------------------------------------------- */
static gpointer
_sv_to_class_struct_pointer (SV *sv, GPerlI11nInvocationInfo *iinfo)
{
gpointer pointer = NULL;
GType class_type = 0;
dwarn (" -> gtype struct?\n");
if (gperl_sv_is_ref (sv)) { /* instance? */
const char *package = sv_reftype (SvRV (sv), TRUE);
class_type = gperl_type_from_package (package);
} else { /* package? */
class_type = gperl_type_from_package (SvPV_nolen (sv));
}
dwarn (" class_type = %s (%lu), is_classed = %d\n",
g_type_name (class_type), class_type, G_TYPE_IS_CLASSED (class_type));
if (G_TYPE_IS_CLASSED (class_type)) {
pointer = g_type_class_peek (class_type);
if (!pointer) {
/* If peek() produced NULL, the class has not been
* instantiated yet and needs to be created. */
pointer = g_type_class_ref (class_type);
free_after_call (iinfo, g_type_class_unref, pointer);
}
dwarn (" type class = %p\n", pointer);
}
return pointer;
}
/* ------------------------------------------------------------------------- */
void
_store_enum (GIEnumInfo * info, gint value, GIArgument * arg)
{
GITypeTag tag = g_enum_info_get_storage_type (info);
switch (tag) {
case GI_TYPE_TAG_BOOLEAN:
arg->v_boolean = (gboolean) value;
break;
case GI_TYPE_TAG_INT8:
arg->v_int8 = (gint8) value;
break;
case GI_TYPE_TAG_UINT8:
arg->v_uint8 = (guint8) value;
break;
case GI_TYPE_TAG_INT16:
arg->v_int16 = (gint16) value;
break;
case GI_TYPE_TAG_UINT16:
arg->v_uint16 = (guint16) value;
break;
case GI_TYPE_TAG_INT32:
arg->v_int32 = (gint32) value;
break;
case GI_TYPE_TAG_UINT32:
arg->v_uint32 = (guint32) value;
break;
case GI_TYPE_TAG_INT64:
arg->v_int64 = (gint64) value;
break;
case GI_TYPE_TAG_UINT64:
arg->v_uint64 = (guint64) value;
break;
default:
ccroak ("Unhandled enumeration type %s (%d) encountered",
g_type_tag_to_string (tag), tag);
}
}
gint
_retrieve_enum (GIEnumInfo * info, GIArgument * arg)
{
GITypeTag tag = g_enum_info_get_storage_type (info);
switch (tag) {
case GI_TYPE_TAG_BOOLEAN:
return (gint) arg->v_boolean;
case GI_TYPE_TAG_INT8:
return (gint) arg->v_int8;
case GI_TYPE_TAG_UINT8:
return (gint) arg->v_uint8;
case GI_TYPE_TAG_INT16:
return (gint) arg->v_int16;
case GI_TYPE_TAG_UINT16:
return (gint) arg->v_uint16;
case GI_TYPE_TAG_INT32:
return (gint) arg->v_int32;
case GI_TYPE_TAG_UINT32:
return (gint) arg->v_uint32;
case GI_TYPE_TAG_INT64:
return (gint) arg->v_int64;
case GI_TYPE_TAG_UINT64:
return (gint) arg->v_uint64;
default:
ccroak ("Unhandled enumeration type %s (%d) encountered",
g_type_tag_to_string (tag), tag);
return 0;
}
}
|
