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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2008 litl, LLC
#ifndef GI_VALUE_H_
#define GI_VALUE_H_
#include <config.h>
#include <utility> // for move, swap
#include <vector> // for vector
#include <glib-object.h>
#include <js/TypeDecls.h>
#include "cjs/macros.h"
namespace Gjs {
struct AutoGValue : GValue {
AutoGValue() : GValue(G_VALUE_INIT) {
static_assert(sizeof(AutoGValue) == sizeof(GValue));
}
explicit AutoGValue(GType gtype) : AutoGValue() {
g_value_init(this, gtype);
}
AutoGValue(AutoGValue const& src) : AutoGValue(G_VALUE_TYPE(&src)) {
g_value_copy(&src, this);
}
AutoGValue& operator=(AutoGValue other) {
// We need to cast to GValue here not to make swap to recurse here
std::swap(*static_cast<GValue*>(this), *static_cast<GValue*>(&other));
return *this;
}
AutoGValue(AutoGValue&& src) {
switch (G_VALUE_TYPE(&src)) {
case G_TYPE_NONE:
case G_TYPE_CHAR:
case G_TYPE_UCHAR:
case G_TYPE_BOOLEAN:
case G_TYPE_INT:
case G_TYPE_UINT:
case G_TYPE_LONG:
case G_TYPE_ULONG:
case G_TYPE_INT64:
case G_TYPE_UINT64:
case G_TYPE_FLOAT:
case G_TYPE_DOUBLE:
*static_cast<GValue*>(this) =
std::move(static_cast<GValue const&&>(src));
break;
default:
// We can't safely move in complex cases, so let's just copy
this->steal();
*this = src;
g_value_unset(&src);
}
}
void steal() { *static_cast<GValue*>(this) = G_VALUE_INIT; }
~AutoGValue() { g_value_unset(this); }
};
} // namespace Gjs
using AutoGValueVector = std::vector<Gjs::AutoGValue>;
GJS_JSAPI_RETURN_CONVENTION
bool gjs_value_to_g_value (JSContext *context,
JS::HandleValue value,
GValue *gvalue);
GJS_JSAPI_RETURN_CONVENTION
bool gjs_value_to_g_value_no_copy (JSContext *context,
JS::HandleValue value,
GValue *gvalue);
GJS_JSAPI_RETURN_CONVENTION
bool gjs_value_from_g_value(JSContext *context,
JS::MutableHandleValue value_p,
const GValue *gvalue);
#endif // GI_VALUE_H_
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