| private getRawNetObject ( IntPtr luaState, int index ) : object | ||
| luaState | IntPtr | |
| index | int | |
| return | object | |
public static void dumpStack(ObjectTranslator translator, IntPtr luaState)
{
int num = LuaDLL.lua_gettop(luaState);
for (int i = 1; i <= num; i++)
{
LuaTypes type = LuaDLL.lua_type(luaState, i);
if (type != LuaTypes.LUA_TTABLE)
{
LuaDLL.lua_typename(luaState, type);
}
LuaDLL.lua_tostring(luaState, i);
if (type == LuaTypes.LUA_TUSERDATA)
{
translator.getRawNetObject(luaState, i).ToString();
}
}
}
/// <summary>
/// Debug tool to dump the lua stack
/// </summary>
/// FIXME, move somewhere else
public static void dumpStack(ObjectTranslator translator, IntPtr luaState)
{
int depth = LuaDLL.lua_gettop(luaState);
Debug.WriteLine("lua stack depth: " + depth);
for (int i = 1; i <= depth; i++)
{
LuaTypes type = LuaDLL.lua_type(luaState, i);
// we dump stacks when deep in calls, calling typename while the stack is in flux can fail sometimes, so manually check for key types
string typestr = (type == LuaTypes.LUA_TTABLE) ? "table" : LuaDLL.lua_typename(luaState, type);
string strrep = LuaDLL.lua_tostring(luaState, i);
if (type == LuaTypes.LUA_TUSERDATA)
{
object obj = translator.getRawNetObject(luaState, i);
strrep = obj.ToString();
}
Debug.Print("{0}: ({1}) {2}", i, typestr, strrep);
}
}
public static int setFieldOrProperty(IntPtr luaState)
{
ObjectTranslator translator = ObjectTranslator.FromState(luaState);
object target = translator.getRawNetObject(luaState, 1);
if (target == null)
{
translator.throwError(luaState, "trying to index and invalid object reference");
return(0);
}
Type type = target.GetType();
// First try to look up the parameter as a property name
string detailMessage;
bool didMember = translator.metaFunctions.trySetMember(luaState, type, target, BindingFlags.Instance | BindingFlags.IgnoreCase, out detailMessage);
if (didMember)
{
return(0); // Must have found the property name
}
// We didn't find a property name, now see if we can use a [] style this accessor to set array contents
try
{
if (type.IsArray && LuaDLL.lua_isnumber(luaState, 2))
{
int index = (int)LuaDLL.lua_tonumber(luaState, 2);
Array arr = (Array)target;
object val = translator.getAsType(luaState, 3, arr.GetType().GetElementType());
arr.SetValue(val, index);
}
else
{
// Try to see if we have a this[] accessor
MethodInfo setter = type.GetMethod("set_Item");
if (setter != null)
{
ParameterInfo[] args = setter.GetParameters();
Type valueType = args[1].ParameterType;
// The new val ue the user specified
object val = translator.getAsType(luaState, 3, valueType);
Type indexType = args[0].ParameterType;
object index = translator.getAsType(luaState, 2, indexType);
object[] methodArgs = new object[2];
// Just call the indexer - if out of bounds an exception will happen
methodArgs[0] = index;
methodArgs[1] = val;
setter.Invoke(target, methodArgs);
}
else
{
translator.throwError(luaState, detailMessage); // Pass the original message from trySetMember because it is probably best
}
}
}
catch (SEHException)
{
// If we are seeing a C++ exception - this must actually be for Lua's private use. Let it handle it
throw;
}
catch (Exception e)
{
translator.metaFunctions.ThrowError(luaState, e);
}
return(0);
}
/*
* __call metafunction of CLR delegates, retrieves and calls the delegate.
*/
private int runFunctionDelegate(LuaCore.lua_State luaState)
{
LuaCore.lua_CFunction func = (LuaCore.lua_CFunction)translator.getRawNetObject(luaState, 1);
LuaLib.lua_remove(luaState, 1);
return(func(luaState));
}
public static int getMethod(IntPtr luaState)
{
ObjectTranslator translator = ObjectTranslator.FromState(luaState);
object obj = translator.getRawNetObject(luaState, 1);
if (obj == null)
{
translator.throwError(luaState, "trying to index an invalid object reference");
LuaDLL.lua_pushnil(luaState);
return(1);
}
object index = translator.getObject(luaState, 2);
//Type indexType = index.GetType(); //* not used
string methodName = index as string; // will be null if not a string arg
Type objType = obj.GetType();
// Handle the most common case, looking up the method by name.
// CP: This will fail when using indexers and attempting to get a value with the same name as a property of the object,
// ie: xmlelement['item'] <- item is a property of xmlelement
try
{
if (methodName != null && translator.metaFunctions.isMemberPresent(objType, methodName))
{
return(translator.metaFunctions.getMember(luaState, objType, obj, methodName, BindingFlags.Instance | BindingFlags.IgnoreCase));
}
}
catch { }
bool failed = true;
// Try to access by array if the type is right and index is an int (lua numbers always come across as double)
if (objType.IsArray && index is double)
{
int intIndex = (int)((double)index);
Array aa = obj as Array;
if (intIndex >= aa.Length)
{
return(translator.pushError(luaState, "array index out of bounds: " + intIndex + " " + aa.Length));
}
object val = aa.GetValue(intIndex);
translator.push(luaState, val);
failed = false;
}
else
{
// Try to use get_Item to index into this .net object
//MethodInfo getter = objType.GetMethod("get_Item");
// issue here is that there may be multiple indexers..
MethodInfo[] methods = objType.GetMethods();
foreach (MethodInfo mInfo in methods)
{
if (mInfo.Name == "get_Item")
{
//check if the signature matches the input
if (mInfo.GetParameters().Length == 1)
{
MethodInfo getter = mInfo;
ParameterInfo[] actualParms = (getter != null) ? getter.GetParameters() : null;
if (actualParms == null || actualParms.Length != 1)
{
return(translator.pushError(luaState, "method not found (or no indexer): " + index));
}
else
{
// Get the index in a form acceptable to the getter
index = translator.getAsType(luaState, 2, actualParms[0].ParameterType);
// Just call the indexer - if out of bounds an exception will happen
try
{
object result = getter.Invoke(obj, new object[] { index });
translator.push(luaState, result);
failed = false;
}
catch (TargetInvocationException e)
{
// Provide a more readable description for the common case of key not found
if (e.InnerException is KeyNotFoundException)
{
return(translator.pushError(luaState, "key '" + index + "' not found "));
}
else
{
return(translator.pushError(luaState, "exception indexing '" + index + "' " + e.Message));
}
}
}
}
}
}
}
if (failed)
{
return(translator.pushError(luaState, "cannot find " + index));
}
LuaDLL.lua_pushboolean(luaState, false);
return(2);
}
/*
* __call metafunction of CLR delegates, retrieves and calls the delegate.
*/
private int runFunctionDelegate(KopiLua.Lua.lua_State luaState)
{
KopiLua.Lua.lua_CFunction func = (KopiLua.Lua.lua_CFunction)translator.getRawNetObject(luaState, 1);
LuaDLL.lua_remove(luaState, 1);
return(func(luaState));
}
public static int getMethod(IntPtr luaState)
{
ObjectTranslator objectTranslator = ObjectTranslator.FromState(luaState);
object rawNetObject = objectTranslator.getRawNetObject(luaState, 1);
if (rawNetObject == null)
{
objectTranslator.throwError(luaState, "trying to index an invalid object reference");
LuaDLL.lua_pushnil(luaState);
return(1);
}
object obj = objectTranslator.getObject(luaState, 2);
string text = obj as string;
Type type = rawNetObject.GetType();
try
{
if (text != null && objectTranslator.metaFunctions.isMemberPresent(type, text))
{
int result = objectTranslator.metaFunctions.getMember(luaState, type, rawNetObject, text, BindingFlags.IgnoreCase | BindingFlags.Instance);
return(result);
}
}
catch
{
}
bool flag = true;
if (type.IsArray && obj is double)
{
int num = (int)((double)obj);
Array array = rawNetObject as Array;
if (num >= array.Length)
{
return(objectTranslator.pushError(luaState, string.Concat(new object[]
{
"array index out of bounds: ",
num,
" ",
array.Length
})));
}
object value = array.GetValue(num);
objectTranslator.push(luaState, value);
flag = false;
}
else
{
MethodInfo[] methods = type.GetMethods();
MethodInfo[] array2 = methods;
for (int i = 0; i < array2.Length; i++)
{
MethodInfo methodInfo = array2[i];
if (methodInfo.Name == "get_Item" && methodInfo.GetParameters().Length == 1)
{
MethodInfo methodInfo2 = methodInfo;
ParameterInfo[] array3 = (methodInfo2 == null) ? null : methodInfo2.GetParameters();
if (array3 == null || array3.Length != 1)
{
return(objectTranslator.pushError(luaState, "method not found (or no indexer): " + obj));
}
obj = objectTranslator.getAsType(luaState, 2, array3[0].ParameterType);
try
{
object o = methodInfo2.Invoke(rawNetObject, new object[]
{
obj
});
objectTranslator.push(luaState, o);
flag = false;
}
catch (TargetInvocationException ex)
{
int result;
if (ex.InnerException is KeyNotFoundException)
{
result = objectTranslator.pushError(luaState, "key '" + obj + "' not found ");
return(result);
}
result = objectTranslator.pushError(luaState, string.Concat(new object[]
{
"exception indexing '",
obj,
"' ",
ex.Message
}));
return(result);
}
}
}
}
if (flag)
{
return(objectTranslator.pushError(luaState, "cannot find " + obj));
}
LuaDLL.lua_pushboolean(luaState, false);
return(2);
}
internal ExtractValue checkType(IntPtr luaState, int stackPos, Type paramType)
{
LuaTypes luatype = LuaAPI.lua_type(luaState, stackPos);
if (paramType.IsByRef)
{
paramType = paramType.GetElementType();
}
Type underlyingType = Nullable.GetUnderlyingType(paramType);
if (underlyingType != null)
{
paramType = underlyingType; // Silently convert nullable types to their non null requics
}
long runtimeHandleValue = paramType.TypeHandle.Value.ToInt64();
if (paramType.Equals(typeof(object)))
{
return(extractValues[runtimeHandleValue]);
}
//CP: Added support for generic parameters
if (paramType.IsGenericParameter)
{
if (luatype == LuaTypes.LUA_TBOOLEAN)
{
return(extractValues[typeof(bool).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TSTRING)
{
return(extractValues[typeof(string).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TTABLE)
{
return(extractValues[typeof(LuaTable).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TUSERDATA)
{
return(extractValues[typeof(object).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TFUNCTION)
{
return(extractValues[typeof(LuaFunction).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TNUMBER)
{
return(extractValues[typeof(double).TypeHandle.Value.ToInt64()]);
}
}
if (paramType.IsValueType && luatype == LuaTypes.LUA_TTABLE)
{
int oldTop = LuaAPI.lua_gettop(luaState);
ExtractValue ret = null;
LuaAPI.lua_pushvalue(luaState, stackPos);
LuaAPI.lua_pushstring(luaState, "class");
LuaAPI.lua_gettable(luaState, -2);
if (!LuaAPI.lua_isnil(luaState, -1))
{
string cls = LuaAPI.lua_tostring(luaState, -1);
if (cls == "Vector3" && paramType == typeof(Vector3))
{
ret = extractValues[typeof(Vector3).TypeHandle.Value.ToInt64()];
}
else if (cls == "Vector2" && paramType == typeof(Vector2))
{
ret = extractValues[typeof(Vector2).TypeHandle.Value.ToInt64()];
}
else if (cls == "Quaternion" && paramType == typeof(Quaternion))
{
ret = extractValues[typeof(Quaternion).TypeHandle.Value.ToInt64()];
}
else if (cls == "Color" && paramType == typeof(Color))
{
ret = extractValues[typeof(Color).TypeHandle.Value.ToInt64()];
}
else if (cls == "Vector4" && paramType == typeof(Vector4))
{
ret = extractValues[typeof(Vector4).TypeHandle.Value.ToInt64()];
}
else if (cls == "Ray" && paramType == typeof(Ray))
{
ret = extractValues[typeof(Ray).TypeHandle.Value.ToInt64()];
}
else
{
ret = null;
}
}
LuaAPI.lua_settop(luaState, oldTop);
if (ret != null)
{
return(ret);
}
}
if (LuaAPI.lua_isnumber(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
if (paramType == typeof(bool))
{
if (LuaAPI.lua_isboolean(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
}
else if (paramType == typeof(string))
{
if (LuaAPI.lua_isstring(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
else if (luatype == LuaTypes.LUA_TNIL)
{
return(extractNetObject); // kevinh - silently convert nil to a null string pointer
}
}
else if (paramType == typeof(LuaTable))
{
if (luatype == LuaTypes.LUA_TTABLE)
{
return(extractValues[runtimeHandleValue]);
}
}
else if (paramType == typeof(LuaFunction))
{
if (luatype == LuaTypes.LUA_TFUNCTION)
{
return(extractValues[runtimeHandleValue]);
}
}
else if (typeof(Delegate).IsAssignableFrom(paramType) && luatype == LuaTypes.LUA_TFUNCTION)
{
translator.throwError(luaState, "Delegates not implemnented");
}
else if (paramType.IsInterface && luatype == LuaTypes.LUA_TTABLE)
{
translator.throwError(luaState, "Interfaces not implemnented");
}
else if ((paramType.IsInterface || paramType.IsClass) && luatype == LuaTypes.LUA_TNIL)
{
// kevinh - allow nil to be silently converted to null - extractNetObject will return null when the item ain't found
return(extractNetObject);
}
else if (LuaAPI.lua_type(luaState, stackPos) == LuaTypes.LUA_TTABLE)
{
if (LuaTypes.LUA_TNIL != LuaAPI.luaL_getmetafield(luaState, stackPos, "__index"))
{
object obj = translator.getNetObject(luaState, -1);
LuaAPI.lua_settop(luaState, -2);
if (obj != null && paramType.IsAssignableFrom(obj.GetType()))
{
return(extractNetObject);
}
}
}
else
{
//object obj = translator.getNetObject(luaState, stackPos); //topameng 修改这里使支持注册到c#的lua类
object obj = translator.getRawNetObject(luaState, stackPos);
if (obj != null && paramType.IsAssignableFrom(obj.GetType()))
{
return(extractNetObject);
}
}
return(null);
}
internal ExtractValue checkType(IntPtr luaState, int stackPos, Type paramType)
{
LuaTypes luatype = LuaDLL.lua_type(luaState, stackPos);
if (paramType.IsByRef)
{
paramType = paramType.GetElementType();
}
Type underlyingType = Nullable.GetUnderlyingType(paramType);
if (underlyingType != null)
{
paramType = underlyingType; // Silently convert nullable types to their non null requics
}
long runtimeHandleValue = paramType.TypeHandle.Value.ToInt64();
if (paramType.Equals(typeof(object)))
{
return(extractValues[runtimeHandleValue]);
}
//CP: Added support for generic parameters
if (paramType.IsGenericParameter)
{
if (luatype == LuaTypes.LUA_TBOOLEAN)
{
return(extractValues[typeof(bool).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TSTRING)
{
return(extractValues[typeof(string).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TTABLE)
{
return(extractValues[typeof(LuaTable).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TUSERDATA)
{
return(extractValues[typeof(object).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TFUNCTION)
{
return(extractValues[typeof(LuaFunction).TypeHandle.Value.ToInt64()]);
}
else if (luatype == LuaTypes.LUA_TNUMBER)
{
return(extractValues[typeof(double).TypeHandle.Value.ToInt64()]);
}
//else // suppress CS0642
; //an unsupported type was encountered
}
if (LuaDLL.lua_isnumber(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
if (paramType == typeof(bool))
{
if (LuaDLL.lua_isboolean(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
}
else if (paramType == typeof(string))
{
if (LuaDLL.lua_isstring(luaState, stackPos))
{
return(extractValues[runtimeHandleValue]);
}
else if (luatype == LuaTypes.LUA_TNIL)
{
return(extractNetObject); // kevinh - silently convert nil to a null string pointer
}
}
else if (paramType == typeof(LuaTable))
{
if (luatype == LuaTypes.LUA_TTABLE)
{
return(extractValues[runtimeHandleValue]);
}
}
else if (paramType == typeof(LuaUserData))
{
if (luatype == LuaTypes.LUA_TUSERDATA)
{
return(extractValues[runtimeHandleValue]);
}
}
else if (paramType == typeof(LuaFunction))
{
if (luatype == LuaTypes.LUA_TFUNCTION)
{
return(extractValues[runtimeHandleValue]);
}
}
else if (typeof(Delegate).IsAssignableFrom(paramType) && luatype == LuaTypes.LUA_TFUNCTION)
{
#if __NOGEN__
translator.throwError(luaState, "Delegates not implemnented");
#else
return(new ExtractValue(new DelegateGenerator(translator, paramType).extractGenerated));
#endif
}
else if (paramType.IsInterface && luatype == LuaTypes.LUA_TTABLE)
{
#if __NOGEN__
translator.throwError(luaState, "Interfaces not implemnented");
#else
return(new ExtractValue(new ClassGenerator(translator, paramType).extractGenerated));
#endif
}
else if ((paramType.IsInterface || paramType.IsClass) && luatype == LuaTypes.LUA_TNIL)
{
// kevinh - allow nil to be silently converted to null - extractNetObject will return null when the item ain't found
return(extractNetObject);
}
else if (LuaDLL.lua_type(luaState, stackPos) == LuaTypes.LUA_TTABLE)
{
if (LuaDLL.luaL_getmetafield(luaState, stackPos, "__index"))
{
object obj = translator.getNetObject(luaState, -1);
LuaDLL.lua_settop(luaState, -2);
if (obj != null && paramType.IsAssignableFrom(obj.GetType()))
{
return(extractNetObject);
}
}
else
{
return(null);
}
}
else
{
//object obj = translator.getNetObject(luaState, stackPos); //topameng 修改这里使支持注册到c#的lua类
object obj = translator.getRawNetObject(luaState, stackPos);
if (obj != null && paramType.IsAssignableFrom(obj.GetType()))
{
return(extractNetObject);
}
}
return(null);
}