public static bool duk_get_type(IntPtr ctx, int idx, out Type o)
{
if (DuktapeDLL.duk_is_string(ctx, idx))
{
var name = DuktapeDLL.duk_get_string(ctx, idx);
o = DuktapeAux.GetType(name);
return(o != null);
}
else
{
//TODO: 增加一个隐藏属性记录jsobject对应类型 (constructor, object)
if (DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_EXPORTED_REFID))
{
var vm = DuktapeVM.GetVM(ctx);
var refid = DuktapeDLL.duk_get_uint(ctx, -1);
DuktapeDLL.duk_pop(ctx);
o = vm.GetExportedType(refid);
// Debug.Log($"get type from exported registry {o}:{refid}");
return(o != null);
}
else if (DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE))
{
var cache = DuktapeVM.GetObjectCache(ctx);
var refid = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx);
cache.TryGetTypedObject(refid, out o);
// Debug.Log($"get type from objectcache registry {o}:{refid}");
return(o != null);
}
}
o = null;
return(false);
}
private static void replace_by_builtin(IntPtr ctx, string t, uint k)
{
DuktapeDLL.duk_builtins_reg_get(ctx, k); // c
DuktapeDLL.duk_get_prop_string(ctx, -2, t); // cs
// copy static fields from c# to c
DuktapeDLL.duk_enum(ctx, -1, 0);
while (DuktapeDLL.duk_next(ctx, -1, true))
{
DuktapeDLL.duk_dup(ctx, -2);
if (!DuktapeDLL.duk_has_prop(ctx, -6))
{
DuktapeDLL.duk_put_prop(ctx, -5);
}
else
{
DuktapeDLL.duk_pop_2(ctx); // pop key and value
}
}
DuktapeDLL.duk_pop(ctx); // pop enum
DuktapeDLL.duk_get_prop_string(ctx, -2, "prototype"); // c prototype
DuktapeDLL.duk_get_prop_string(ctx, -2, "prototype"); // cs prototype <stack> [c, cs, c.prototype, cs.prototype]
DuktapeDLL.duk_set_prototype(ctx, -2); // c.prototype = cs.prototype <stack> [c, cs, c.prototype]
DuktapeDLL.duk_pop(ctx); // pop c.prototype
DuktapeDLL.duk_put_prop_string(ctx, -2, "_raw"); // cs._raw = c
DuktapeDLL.duk_put_prop_string(ctx, -2, t); // <global>
}
private static duk_ret_t cb_load_module(IntPtr ctx)
{
var module_id = DuktapeAux.duk_require_string(ctx, 0);
DuktapeDLL.duk_get_prop_string(ctx, 2, "filename");
var filename = DuktapeAux.duk_require_string(ctx, -1);
var source = GetVM(ctx)._fileResolver.ReadAllBytes(filename);
// Debug.LogFormat("cb_load_module module_id:'{0}', filename:'{1}', resolved:'{2}'\n", module_id, filename, resolvedPath);
do
{
if (source != null && source.Length > 0) // bytecode is unsupported
{
if (source[0] != 0xbf)
{
DuktapeDLL.duk_unity_push_lstring(ctx, source, (uint)source.Length);
}
else
{
DuktapeDLL.duk_type_error(ctx, "cannot load module (bytecode): %s", module_id);
}
break;
}
DuktapeDLL.duk_type_error(ctx, "cannot load module: %s", module_id);
} while (false);
return(1);
}
public static bool duk_get_delegate <T>(IntPtr ctx, int idx, out T o)
where T : class
{
if (DuktapeDLL.duk_is_object(ctx, idx) ||/* && check if js delegate type (hidden property) */
DuktapeDLL.duk_is_function(ctx, idx))
{
DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK);
var refid = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx);
var cache = DuktapeVM.GetObjectCache(ctx);
DuktapeDelegate fn;
if (cache.TryGetTypedWeakObject(refid, out fn) && fn != null)
{
o = fn.target as T;
return(true);
}
// 默认赋值操作
DuktapeDLL.duk_dup(ctx, idx);
var heapptr = DuktapeDLL.duk_get_heapptr(ctx, idx);
fn = new DuktapeDelegate(ctx, DuktapeDLL.duk_unity_ref(ctx));
var vm = DuktapeVM.GetVM(ctx);
o = vm.CreateDelegate(typeof(T), fn) as T;
// DuktapeDelegate 拥有 js 对象的强引用, 此 js 对象无法释放 cache 中的 object, 所以这里用弱引用注册
// 会出现的问题是, 如果 c# 没有对 DuktapeDelegate 的强引用, 那么反复 get_delegate 会重复创建 DuktapeDelegate
refid = cache.AddWeakObject(fn);
DuktapeDLL.duk_unity_set_prop_i(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK, refid);
cache.AddJSValue(o, heapptr);
return(true);
}
o = null;
return(false);
}
private static string duk_get_stacktrace(IntPtr ctx)
{
var stacktrace = "stacktrace:\n";
for (int i = -2; ; i--)
{
DuktapeDLL.duk_inspect_callstack_entry(ctx, i);
if (!DuktapeDLL.duk_is_undefined(ctx, -1))
{
DuktapeDLL.duk_get_prop_string(ctx, -1, "lineNumber");
var lineNumber = DuktapeDLL.duk_to_int(ctx, -1);
DuktapeDLL.duk_get_prop_string(ctx, -2, "function");
DuktapeDLL.duk_get_prop_string(ctx, -1, "name");
var funcName = DuktapeDLL.duk_safe_to_string(ctx, -1);
DuktapeDLL.duk_get_prop_string(ctx, -2, "fileName");
var fileName = DuktapeDLL.duk_safe_to_string(ctx, -1);
DuktapeDLL.duk_pop_n(ctx, 4);
stacktrace += (duk_source_position ?? default_duk_source_position)(ctx, funcName, fileName, lineNumber);
stacktrace += "\n";
}
else
{
DuktapeDLL.duk_pop(ctx);
break;
}
}
return(stacktrace);
}
protected static int object_dtor(IntPtr ctx)
{
if (DuktapeDLL.duk_get_prop_string(ctx, 0, DuktapeVM.OBJ_PROP_NATIVE))
{
var id = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeVM.GetObjectCache(ctx)?.RemoveObject(id);
}
DuktapeDLL.duk_pop(ctx); // pop native
return(0);
}
public static bool duk_retrive_object(IntPtr ctx, string el0)
{
DuktapeDLL.duk_dup_top(ctx);
if (!DuktapeDLL.duk_get_prop_string(ctx, -1, el0)) // [parent, el0]
{
DuktapeDLL.duk_remove(ctx, -2);
return(false);
}
DuktapeDLL.duk_remove(ctx, -2);
return(true);
}
public static void PrintError(IntPtr ctx, int idx, string filename)
{
string err;
if (DuktapeDLL.duk_is_error(ctx, idx))
{
DuktapeDLL.duk_get_prop_string(ctx, idx, "stack");
err = DuktapeDLL.duk_safe_to_string(ctx, -1);
DuktapeDLL.duk_pop(ctx);
}
else
{
err = DuktapeDLL.duk_safe_to_string(ctx, idx);
}
if (duk_source_position != default_duk_source_position)
{
var errlines = err.Split('\n');
err = "";
if (_stRegex == null)
{
_stRegex = new Regex(@"^\s+at\s(.+)\s\((.+\.js):(\d+)\)(.*)$", RegexOptions.Compiled);
}
for (var i = 0; i < errlines.Length; i++)
{
var line = errlines[i];
var matches = _stRegex.Matches(line);
if (matches.Count == 1)
{
var match = matches[0];
if (match.Groups.Count >= 4)
{
var funcName = match.Groups[1].Value;
var fileName = match.Groups[2].Value;
var lineNumber = 0;
int.TryParse(match.Groups[3].Value, out lineNumber);
var extra = match.Groups.Count >= 5 ? match.Groups[4].Value : "";
var sroucePosition = duk_source_position(ctx, funcName, fileName, lineNumber);
err += $" at {sroucePosition}{extra}\n";
continue;
}
}
err += line + "\n";
}
}
if (filename != null)
{
Debug.LogError($"[JSError][{filename}] {err}");
}
else
{
Debug.LogError($"[JSError] {err}");
}
}
public static void duk_begin_namespace(IntPtr ctx, string el) // [parent]
{
// Debug.LogFormat("begin namespace {0}", DuktapeDLL.duk_get_top(ctx));
if (!DuktapeDLL.duk_get_prop_string(ctx, -1, el)) // [parent, el]
{
DuktapeDLL.duk_pop(ctx); // [parent]
DuktapeDLL.duk_push_object(ctx); // [parent, new_object]
DuktapeDLL.duk_dup_top(ctx); // [parent, new_object]
DuktapeDLL.duk_put_prop_string(ctx, -3, el); // [parent, el]
}
}
// 获取全局函数并调用 (do not cache it)
public void Invoke(string funcName)
{
DuktapeDLL.duk_push_global_object(_ctx);
DuktapeDLL.duk_get_prop_string(_ctx, -1, funcName);
if (DuktapeDLL.duk_is_function(_ctx, -1))
{
if (DuktapeDLL.duk_pcall(_ctx, 0) != DuktapeDLL.DUK_EXEC_SUCCESS)
{
DuktapeAux.PrintError(_ctx, -1);
}
}
DuktapeDLL.duk_pop_2(_ctx);
}
// public static bool duk_rebind_this(IntPtr ctx, Matrix4x4 o)
// {
// DuktapeDLL.duk_push_this(ctx);
// DuktapeDLL.duk_unity_put16f(ctx, -1, ...);
// DuktapeDLL.duk_pop(ctx);
// return true;
// }
public static bool duk_get_native_refid(IntPtr ctx, int idx, out int id)
{
if (!DuktapeDLL.duk_is_null_or_undefined(ctx, idx))
{
if (DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE))
{
id = DuktapeDLL.duk_get_int(ctx, -1);
return(true);
}
DuktapeDLL.duk_pop(ctx); // pop OBJ_PROP_NATIVE
}
id = 0;
return(false);
}
public static bool duk_retrive_object(IntPtr ctx, params string[] els)
{
DuktapeDLL.duk_dup_top(ctx);
for (int i = 1, size = els.Length; i < size; i++)
{
var el = els[i];
if (!DuktapeDLL.duk_get_prop_string(ctx, -1, el)) // [parent, el]
{
DuktapeDLL.duk_remove(ctx, -2);
return(false);
}
DuktapeDLL.duk_remove(ctx, -2);
}
return(true);
}
public static bool duk_get_cached_object(IntPtr ctx, int idx, out object o)
{
if (DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE))
{
var id = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx);
return(DuktapeVM.GetObjectCache(ctx).TryGetObject(id, out o));
}
else
{
DuktapeDLL.duk_pop(ctx);
}
o = null;
return(false);
}
protected static void duk_add_event(IntPtr ctx, string name, DuktapeDLL.duk_c_function add_op, DuktapeDLL.duk_c_function remove_op, int idx)
{
idx = DuktapeDLL.duk_normalize_index(ctx, idx);
DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE); // 直接在 event object 上复制主对象的引用id
var refid = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx);
DuktapeDLL.duk_push_object(ctx);
DuktapeDLL.duk_unity_set_prop_i(ctx, -1, DuktapeVM.OBJ_PROP_NATIVE, refid);
DuktapeDLL.duk_push_c_function(ctx, add_op, 1);
DuktapeDLL.duk_put_prop_string(ctx, -2, "on");
DuktapeDLL.duk_push_c_function(ctx, remove_op, 1);
DuktapeDLL.duk_put_prop_string(ctx, -2, "off");
DuktapeDLL.duk_put_prop_string(ctx, idx, name);
}
// 记录栈状态
public void BeginInvoke(IntPtr ctx)
{
// Debug.Log($"BeginInvoke: {_savedState}");
if (_jsInvoker == null)
{
this.Push(ctx); // push this
if (!DuktapeDLL.duk_is_function(ctx, -1))
{
// Debug.Log("DuktapeDelegate based on Dispatcher");
DuktapeDLL.duk_get_prop_string(ctx, -1, "dispatch");
DuktapeDLL.duk_remove(ctx, -2); // remove this
}
_jsInvoker = new DuktapeFunction(ctx, DuktapeDLL.duk_unity_ref(ctx));
}
_jsInvoker.Push(ctx); // push function
this.Push(ctx); // push this
_savedState = DuktapeDLL.duk_get_top(ctx);
}
public static bool duk_rebind_native(IntPtr ctx, int idx, object o)
{
if (DuktapeDLL.duk_is_null_or_undefined(ctx, idx)) // or check for object?
{
return(true);
}
if (DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE))
{
var id = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx); // pop OBJ_PROP_NATIVE
return(DuktapeVM.GetObjectCache(ctx).ReplaceObject(id, o));
}
else
{
DuktapeDLL.duk_pop(ctx);
}
return(false);
}
private static string duk_get_stacktrace(IntPtr ctx)
{
var stacktrace = "\n";
uint malloc_count = 0;
uint malloc_size = 0;
var vm = DuktapeVM.GetVM(ctx);
if (vm != null)
{
vm.GetMemoryState(out malloc_count, out malloc_size);
if (malloc_count != 0)
{
stacktrace += $"allocations: {malloc_count} [{malloc_size}]\n";
}
}
stacktrace += "stacktrace:\n";
for (int i = -2; ; i--)
{
DuktapeDLL.duk_inspect_callstack_entry(ctx, i);
if (!DuktapeDLL.duk_is_undefined(ctx, -1))
{
DuktapeDLL.duk_get_prop_string(ctx, -1, "lineNumber");
var lineNumber = DuktapeDLL.duk_to_int(ctx, -1);
DuktapeDLL.duk_get_prop_string(ctx, -2, "function");
DuktapeDLL.duk_get_prop_string(ctx, -1, "name");
var funcName = DuktapeDLL.duk_safe_to_string(ctx, -1);
DuktapeDLL.duk_get_prop_string(ctx, -2, "fileName");
var fileName = DuktapeDLL.duk_safe_to_string(ctx, -1);
DuktapeDLL.duk_pop_n(ctx, 4);
stacktrace += (duk_source_position ?? default_duk_source_position)(ctx, funcName, fileName, lineNumber);
stacktrace += "\n";
}
else
{
DuktapeDLL.duk_pop(ctx);
break;
}
}
return(stacktrace);
}
private static duk_ret_t cb_load_module(IntPtr ctx)
{
var module_id = DuktapeAux.duk_require_string(ctx, 0);
DuktapeDLL.duk_get_prop_string(ctx, 2, "filename");
var filename = DuktapeAux.duk_require_string(ctx, -1);
var resolvedPath = GetVM(ctx).ResolvePath(filename);
// Debug.LogFormat("cb_load_module module_id:'{0}', filename:'{1}', resolved:'{2}'\n", module_id, filename, resolvedPath);
var source = GetVM(ctx)._fileManager.ReadAllText(resolvedPath);
if (source != null)
{
DuktapeDLL.duk_push_string(ctx, source);
}
else
{
DuktapeDLL.duk_type_error(ctx, "cannot load module: %s", module_id);
}
return(1);
}
protected static void duk_add_event_instanced(IntPtr ctx, string name, DuktapeDLL.duk_c_function add_op, DuktapeDLL.duk_c_function remove_op, int idx)
{
idx = DuktapeDLL.duk_normalize_index(ctx, idx);
DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE); // 直接在 event object 上复制主对象的引用id
var refid = DuktapeDLL.duk_get_int(ctx, -1);
DuktapeDLL.duk_pop(ctx);
DuktapeDLL.duk_push_object(ctx); // [evtobj]
DuktapeDLL.duk_unity_set_prop_i(ctx, -1, DuktapeVM.OBJ_PROP_NATIVE, refid);
DuktapeDLL.duk_push_string(ctx, name); // [evtobj, name]
DuktapeDLL.duk_dup(ctx, -2); // [evtobj, name, evtobj]
DuktapeDLL.duk_push_c_function(ctx, add_op, 1);
DuktapeDLL.duk_put_prop_string(ctx, -2, "on");
DuktapeDLL.duk_push_c_function(ctx, remove_op, 1);
DuktapeDLL.duk_put_prop_string(ctx, -2, "off");
// [evtobj, name, evtobj]
DuktapeDLL.duk_def_prop(ctx, idx, DuktapeDLL.DUK_DEFPROP_HAVE_VALUE
| DuktapeDLL.DUK_DEFPROP_SET_ENUMERABLE
| DuktapeDLL.DUK_DEFPROP_CLEAR_CONFIGURABLE);
// [evtobj]
}
public void PushProperty(IntPtr ctx, string property)
{
this.Push(ctx); // push this
DuktapeDLL.duk_get_prop_string(ctx, -1, property);
DuktapeDLL.duk_remove(ctx, -2); // remove this
}
// push 当前函数的 prototype
public void PushPrototype(IntPtr ctx)
{
this.Push(ctx);
DuktapeDLL.duk_get_prop_string(ctx, -1, "prototype");
DuktapeDLL.duk_remove(ctx, -2);
}
