|
private lua_pushnil ( |
||
| luaState | ||
| return | void | |
public void LuaPushNil()
{
LuaDLL.lua_pushnil(L);
}
/*
* Pushes the value of a member or a delegate to call it, depending on the type of
* the member. Works with static or instance members.
* Uses reflection to find members, and stores the reflected MemberInfo object in
* a cache (indexed by the type of the object and the name of the member).
*/
private int getMember(IntPtr luaState, IReflect objType, object obj, string methodName, BindingFlags bindingType)
{
bool implicitStatic = false;
MemberInfo member = null;
object cachedMember = checkMemberCache(memberCache, objType, methodName);
//object cachedMember=null;
if (cachedMember is LuaCSFunction)
{
translator.pushFunction(luaState, (LuaCSFunction)cachedMember);
translator.push(luaState, true);
return(2);
}
else if (cachedMember != null)
{
member = (MemberInfo)cachedMember;
}
else
{
MemberInfo[] members = objType.GetMember(methodName, bindingType | BindingFlags.Public | BindingFlags.NonPublic);
if (members.Length > 0)
{
member = members[0];
}
else
{
// If we can't find any suitable instance members, try to find them as statics - but we only want to allow implicit static
// lookups for fields/properties/events -kevinh
members = objType.GetMember(methodName, bindingType | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
if (members.Length > 0)
{
member = members[0];
implicitStatic = true;
}
}
}
if (member != null)
{
if (member.MemberType == MemberTypes.Field)
{
FieldInfo field = (FieldInfo)member;
if (cachedMember == null)
{
setMemberCache(memberCache, objType, methodName, member);
}
try
{
translator.push(luaState, field.GetValue(obj));
}
catch
{
LuaDLL.lua_pushnil(luaState);
}
}
else if (member.MemberType == MemberTypes.Property)
{
PropertyInfo property = (PropertyInfo)member;
if (cachedMember == null)
{
setMemberCache(memberCache, objType, methodName, member);
}
try
{
object val = property.GetValue(obj, null);
translator.push(luaState, val);
}
catch (ArgumentException)
{
// If we can't find the getter in our class, recurse up to the base class and see
// if they can help.
if (objType is Type && !(((Type)objType) == typeof(object)))
{
return(getMember(luaState, ((Type)objType).BaseType, obj, methodName, bindingType));
}
else
{
LuaDLL.lua_pushnil(luaState);
}
}
catch
{
LuaDLL.lua_pushnil(luaState);
}
}
else if (member.MemberType == MemberTypes.Event)
{
EventInfo eventInfo = (EventInfo)member;
if (cachedMember == null)
{
setMemberCache(memberCache, objType, methodName, member);
}
translator.push(luaState, new RegisterEventHandler(translator.pendingEvents, obj, eventInfo));
}
else if (!implicitStatic)
{
if (member.MemberType == MemberTypes.NestedType)
{
// kevinh - added support for finding nested types
// cache us
if (cachedMember == null)
{
setMemberCache(memberCache, objType, methodName, member);
}
// Find the name of our class
string name = member.Name;
Type dectype = member.DeclaringType;
// Build a new long name and try to find the type by name
string longname = dectype.FullName + "+" + name;
Type nestedType = translator.FindType(longname);
translator.pushType(luaState, nestedType);
}
else
{
// Member type must be 'method'
LuaCSFunction wrapper = new LuaCSFunction((new LuaMethodWrapper(translator, objType, methodName, bindingType)).call);
if (cachedMember == null)
{
setMemberCache(memberCache, objType, methodName, wrapper);
}
translator.pushFunction(luaState, wrapper);
translator.push(luaState, true);
return(2);
}
}
else
{
// If we reach this point we found a static method, but can't use it in this context because the user passed in an instance
translator.throwError(luaState, "can't pass instance to static method " + methodName);
LuaDLL.lua_pushnil(luaState);
}
}
else
{
// kevinh - we want to throw an exception because meerly returning 'nil' in this case
// is not sufficient. valid data members may return nil and therefore there must be some
// way to know the member just doesn't exist.
translator.throwError(luaState, "unknown member name " + methodName);
LuaDLL.lua_pushnil(luaState);
}
// push false because we are NOT returning a function (see luaIndexFunction)
translator.push(luaState, false);
return(2);
}
/*
* Calls the method. Receives the arguments from the Lua stack
* and returns values in it.
*/
public int call(IntPtr luaState)
{
MethodBase methodToCall = _Method;
object targetObject = _Target;
bool failedCall = true;
int nReturnValues = 0;
if (!LuaDLL.lua_checkstack(luaState, 5))
{
throw new LuaException("Lua stack overflow");
}
bool isStatic = (_BindingType & BindingFlags.Static) == BindingFlags.Static;
SetPendingException(null);
if (methodToCall == null) // Method from name
{
if (isStatic)
{
targetObject = null;
}
else
{
targetObject = _ExtractTarget(luaState, 1);
}
//LuaDLL.lua_remove(luaState,1); // Pops the receiver
if (_LastCalledMethod.cachedMethod != null) // Cached?
{
int numStackToSkip = isStatic ? 0 : 1; // If this is an instance invoe we will have an extra arg on the stack for the targetObject
int numArgsPassed = LuaDLL.lua_gettop(luaState) - numStackToSkip;
MethodBase method = _LastCalledMethod.cachedMethod;
if (numArgsPassed == _LastCalledMethod.argTypes.Length) // No. of args match?
{
if (!LuaDLL.lua_checkstack(luaState, _LastCalledMethod.outList.Length + 6))
{
throw new LuaException("Lua stack overflow");
}
object[] args = _LastCalledMethod.args;
try
{
for (int i = 0; i < _LastCalledMethod.argTypes.Length; i++)
{
MethodArgs type = _LastCalledMethod.argTypes[i];
object luaParamValue = type.extractValue(luaState, i + 1 + numStackToSkip);
if (_LastCalledMethod.argTypes[i].isParamsArray)
{
args[type.index] = _Translator.tableToArray(luaParamValue, type.paramsArrayType);
}
else
{
args[type.index] = luaParamValue;
}
if (args[type.index] == null &&
!LuaDLL.lua_isnil(luaState, i + 1 + numStackToSkip))
{
throw new LuaException("argument number " + (i + 1) + " is invalid");
}
}
if ((_BindingType & BindingFlags.Static) == BindingFlags.Static)
{
_Translator.push(luaState, method.Invoke(null, args));
}
else
{
if (_LastCalledMethod.cachedMethod.IsConstructor)
{
_Translator.push(luaState, ((ConstructorInfo)method).Invoke(args));
}
else
{
_Translator.push(luaState, method.Invoke(targetObject, args));
}
}
failedCall = false;
}
catch (TargetInvocationException e)
{
// Failure of method invocation
return(SetPendingException(e.GetBaseException()));
}
catch (Exception e)
{
if (_Members.Length == 1) // Is the method overloaded?
// No, throw error
{
return(SetPendingException(e));
}
}
}
}
// Cache miss
if (failedCall)
{
// System.Diagnostics.Debug.WriteLine("cache miss on " + methodName);
// If we are running an instance variable, we can now pop the targetObject from the stack
if (!isStatic)
{
if (targetObject == null)
{
_Translator.throwError(luaState, String.Format("instance method '{0}' requires a non null target object", _MethodName));
LuaDLL.lua_pushnil(luaState);
return(1);
}
LuaDLL.lua_remove(luaState, 1); // Pops the receiver
}
bool hasMatch = false;
string candidateName = null;
foreach (MemberInfo member in _Members)
{
candidateName = member.ReflectedType.Name + "." + member.Name;
MethodBase m = (MethodInfo)member;
bool isMethod = _Translator.matchParameters(luaState, m, ref _LastCalledMethod);
if (isMethod)
{
hasMatch = true;
break;
}
}
if (!hasMatch)
{
string msg = (candidateName == null)
? "invalid arguments to method call"
: ("invalid arguments to method: " + candidateName);
LuaDLL.luaL_error(luaState, msg);
LuaDLL.lua_pushnil(luaState);
return(1);
}
}
}
else // Method from MethodBase instance
{
if (methodToCall.ContainsGenericParameters)
{
// bool isMethod = //* not used
_Translator.matchParameters(luaState, methodToCall, ref _LastCalledMethod);
if (methodToCall.IsGenericMethodDefinition)
{
//need to make a concrete type of the generic method definition
List <Type> typeArgs = new List <Type>();
foreach (object arg in _LastCalledMethod.args)
{
typeArgs.Add(arg.GetType());
}
MethodInfo concreteMethod = (methodToCall as MethodInfo).MakeGenericMethod(typeArgs.ToArray());
_Translator.push(luaState, concreteMethod.Invoke(targetObject, _LastCalledMethod.args));
failedCall = false;
}
else if (methodToCall.ContainsGenericParameters)
{
LuaDLL.luaL_error(luaState, "unable to invoke method on generic class as the current method is an open generic method");
LuaDLL.lua_pushnil(luaState);
return(1);
}
}
else
{
if (!methodToCall.IsStatic && !methodToCall.IsConstructor && targetObject == null)
{
targetObject = _ExtractTarget(luaState, 1);
LuaDLL.lua_remove(luaState, 1); // Pops the receiver
}
if (!_Translator.matchParameters(luaState, methodToCall, ref _LastCalledMethod))
{
LuaDLL.luaL_error(luaState, "invalid arguments to method call");
LuaDLL.lua_pushnil(luaState);
return(1);
}
}
}
if (failedCall)
{
if (!LuaDLL.lua_checkstack(luaState, _LastCalledMethod.outList.Length + 6))
{
throw new LuaException("Lua stack overflow");
}
try
{
if (isStatic)
{
_Translator.push(luaState, _LastCalledMethod.cachedMethod.Invoke(null, _LastCalledMethod.args));
}
else
{
if (_LastCalledMethod.cachedMethod.IsConstructor)
{
_Translator.push(luaState, ((ConstructorInfo)_LastCalledMethod.cachedMethod).Invoke(_LastCalledMethod.args));
}
else
{
_Translator.push(luaState, _LastCalledMethod.cachedMethod.Invoke(targetObject, _LastCalledMethod.args));
}
}
}
catch (TargetInvocationException e)
{
return(SetPendingException(e.GetBaseException()));
}
catch (Exception e)
{
return(SetPendingException(e));
}
}
// Pushes out and ref return values
for (int index = 0; index < _LastCalledMethod.outList.Length; index++)
{
nReturnValues++;
_Translator.push(luaState, _LastCalledMethod.args[_LastCalledMethod.outList[index]]);
}
//by isSingle 2010-09-10 11:26:31
//Desc:
// if not return void,we need add 1,
// or we will lost the function's return value
// when call dotnet function like "int foo(arg1,out arg2,out arg3)" in lua code
if (!_LastCalledMethod.IsReturnVoid && nReturnValues > 0)
{
nReturnValues++;
}
return(nReturnValues < 1 ? 1 : nReturnValues);
}
/*static void PushNull(IntPtr L)
* {
* LuaDLL.tolua_pushudata(L, 1);
* }*/
//PushVarObject
public static void Push(IntPtr L, object obj)
{
if (obj == null)
{
LuaDLL.lua_pushnil(L);
return;
}
Type t = obj.GetType();
if (t.IsValueType)
{
if (t == typeof(bool))
{
bool b = (bool)obj;
LuaDLL.lua_pushboolean(L, b);
}
else if (t.IsEnum)
{
Push(L, (System.Enum)obj);
}
else if (t.IsPrimitive)
{
double d = LuaMisc.ToDouble(obj);
LuaDLL.lua_pushnumber(L, d);
}
else if (t == typeof(Vector3))
{
Push(L, (Vector3)obj);
}
else if (t == typeof(Quaternion))
{
Push(L, (Quaternion)obj);
}
else if (t == typeof(Vector2))
{
Push(L, (Vector2)obj);
}
else if (t == typeof(Vector4))
{
Push(L, (Vector4)obj);
}
else if (t == typeof(Color))
{
Push(L, (Color)obj);
}
else if (t == typeof(RaycastHit))
{
Push(L, (RaycastHit)obj);
}
else if (t == typeof(Touch))
{
Push(L, (Touch)obj);
}
else if (t == typeof(Ray))
{
Push(L, (Ray)obj);
}
else if (t == typeof(Bounds))
{
Push(L, (Bounds)obj);
}
else if (t == typeof(LayerMask))
{
Push(L, (LayerMask)obj);
}
else
{
PushValue(L, (ValueType)obj);
}
}
else
{
if (t.IsArray)
{
Push(L, (Array)obj);
}
else if (t == typeof(string))
{
LuaDLL.lua_pushstring(L, (string)obj);
}
else if (t.IsSubclassOf(typeof(LuaBaseRef)))
{
Push(L, (LuaBaseRef)obj);
}
else if (t.IsSubclassOf(typeof(UnityEngine.Object)))
{
Push(L, (UnityEngine.Object)obj);
}
else if (t.IsSubclassOf(typeof(UnityEngine.TrackedReference)))
{
Push(L, (UnityEngine.TrackedReference)obj);
}
else if (t == typeof(LuaByteBuffer))
{
LuaByteBuffer lbb = (LuaByteBuffer)obj;
LuaDLL.lua_pushlstring(L, lbb.buffer, lbb.buffer.Length);
}
else if (t.IsSubclassOf(typeof(Delegate)))
{
Push(L, (Delegate)obj);
}
else if (obj is System.Collections.IEnumerator)
{
Push(L, (IEnumerator)obj);
}
else if (t == typeof(EventObject))
{
Push(L, (EventObject)obj);
}
else if (t == monoType)
{
Push(L, (Type)obj);
}
else
{
PushObject(L, obj);
}
}
}
/*
* Called by the __index metafunction of CLR objects in case the
* method is not cached or it is a field/property/event.
* Receives the object and the member name as arguments and returns
* either the value of the member or a delegate to call it.
* If the member does not exist returns nil.
*/
private int getMethod(IntPtr 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();
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
if (methodName != null && isMemberPresent(objType, methodName))
{
return(getMember(luaState, objType, obj, methodName, BindingFlags.Instance));
}
// Try to access by array if the type is right and index is an int (lua numbers always come across as double)
if (obj is Array && index is double)
{
object[] arr = (object[])obj;
translator.push(luaState, arr[(int)((double)index)]);
}
else
{
// Try to use get_Item to index into this .net object
Type[] argTypes = new Type[1];
argTypes[0] = indexType;
MethodInfo getter = objType.GetMethod("get_Item", argTypes);
if (index is double)
{
// For numbers we always prefer to pass ints into our accessor if possible (if the accessor
// is really built for doubles it should cast back correctly
double d = (double)index;
if (d == Math.Round(d))
{
bool convertToInt = true;
// If we already found a getter, it might be a version expecting an 'object' parameter
// in that case we'll want to convert to an int
if (getter != null)
{
ParameterInfo[] actualParms = getter.GetParameters();
convertToInt = actualParms[0].ParameterType != typeof(double);
}
if (convertToInt)
{
index = (int)d; // convert the index to a true (but boxed) int
}
}
// If we can't find a double based indexer, fall back to an int based index
if (getter == null && index is int)
{
argTypes[0] = typeof(int);
getter = objType.GetMethod("get_Item", argTypes);
}
}
if (getter == null)
{
translator.throwError(luaState, "method not found (or no indexer): " + index);
LuaDLL.lua_pushnil(luaState);
}
object[] args = new object[1];
// Just call the indexer - if out of bounds an exception will happen
args[0] = index;
try
{
object result = getter.Invoke(obj, args);
translator.push(luaState, result);
}
catch (Exception e)
{
translator.throwError(luaState, "exception while indexing: " + e);
LuaDLL.lua_pushnil(luaState);
}
}
LuaDLL.lua_pushboolean(luaState, false);
return(2);
}
/*
* Calls the method. Receives the arguments from the Lua stack
* and returns values in it.
*/
public int call(IntPtr luaState)
{
MethodBase methodToCall = method;
object targetObject = target;
bool failedCall = true;
int nReturnValues = 0;
if (!LuaDLL.lua_checkstack(luaState, 5))
{
throw new LuaException("Lua stack overflow");
}
bool isStatic = (bindingType & BindingFlags.Static) == BindingFlags.Static;
SetPendingException(null);
if (methodToCall == null) // Method from name
{
if (isStatic)
{
targetObject = null;
}
else
{
targetObject = extractTarget(luaState, 1);
}
//LuaDLL.lua_remove(luaState,1); // Pops the receiver
if (lastCalledMethod.cachedMethod != null) // Cached?
{
int numStackToSkip = isStatic ? 0 : 1; // If this is an instance invoe we will have an extra arg on the stack for the targetObject
int numArgsPassed = LuaDLL.lua_gettop(luaState) - numStackToSkip;
if (numArgsPassed == lastCalledMethod.argTypes.Length) // No. of args match?
{
if (!LuaDLL.lua_checkstack(luaState, lastCalledMethod.outList.Length + 6))
{
throw new LuaException("Lua stack overflow");
}
try
{
for (int i = 0; i < lastCalledMethod.argTypes.Length; i++)
{
lastCalledMethod.args[lastCalledMethod.argTypes[i].index] =
lastCalledMethod.argTypes[i].extractValue(luaState, i + 1 + numStackToSkip);
if (lastCalledMethod.args[lastCalledMethod.argTypes[i].index] == null &&
!LuaDLL.lua_isnil(luaState, i + 1 + numStackToSkip))
{
throw new LuaException("argument number " + (i + 1) + " is invalid");
}
}
if ((bindingType & BindingFlags.Static) == BindingFlags.Static)
{
translator.push(luaState, lastCalledMethod.cachedMethod.Invoke(null, lastCalledMethod.args));
}
else
{
if (lastCalledMethod.cachedMethod.IsConstructor)
{
translator.push(luaState, ((ConstructorInfo)lastCalledMethod.cachedMethod).Invoke(lastCalledMethod.args));
}
else
{
translator.push(luaState, lastCalledMethod.cachedMethod.Invoke(targetObject, lastCalledMethod.args));
}
}
failedCall = false;
}
catch (TargetInvocationException e)
{
// Failure of method invocation
return(SetPendingException(e.GetBaseException()));
}
catch (Exception e)
{
if (members.Length == 1) // Is the method overloaded?
// No, throw error
{
return(SetPendingException(e));
}
}
}
}
// Cache miss
if (failedCall)
{
// System.Diagnostics.Debug.WriteLine("cache miss on " + methodName);
// If we are running an instance variable, we can now pop the targetObject from the stack
if (!isStatic)
{
if (targetObject == null)
{
translator.throwError(luaState, String.Format("instance method '{0}' requires a non null target object", methodName));
LuaDLL.lua_pushnil(luaState);
return(1);
}
LuaDLL.lua_remove(luaState, 1); // Pops the receiver
}
bool hasMatch = false;
string candidateName = null;
foreach (MemberInfo member in members)
{
candidateName = member.ReflectedType.Name + "." + member.Name;
MethodBase m = (MethodInfo)member;
bool isMethod = translator.matchParameters(luaState, m, ref lastCalledMethod);
if (isMethod)
{
hasMatch = true;
break;
}
}
if (!hasMatch)
{
string msg = (candidateName == null)
? "invalid arguments to method call"
: ("invalid arguments to method: " + candidateName);
translator.throwError(luaState, msg);
LuaDLL.lua_pushnil(luaState);
return(1);
}
}
}
else // Method from MethodBase instance
{
if (!methodToCall.IsStatic && !methodToCall.IsConstructor && targetObject == null)
{
targetObject = extractTarget(luaState, 1);
LuaDLL.lua_remove(luaState, 1); // Pops the receiver
}
if (!translator.matchParameters(luaState, methodToCall, ref lastCalledMethod))
{
translator.throwError(luaState, "invalid arguments to method call");
LuaDLL.lua_pushnil(luaState);
return(1);
}
}
if (failedCall)
{
if (!LuaDLL.lua_checkstack(luaState, lastCalledMethod.outList.Length + 6))
{
throw new LuaException("Lua stack overflow");
}
try
{
if (isStatic)
{
translator.push(luaState, lastCalledMethod.cachedMethod.Invoke(null, lastCalledMethod.args));
}
else
{
if (lastCalledMethod.cachedMethod.IsConstructor)
{
translator.push(luaState, ((ConstructorInfo)lastCalledMethod.cachedMethod).Invoke(lastCalledMethod.args));
}
else
{
translator.push(luaState, lastCalledMethod.cachedMethod.Invoke(targetObject, lastCalledMethod.args));
}
}
}
catch (TargetInvocationException e)
{
return(SetPendingException(e.GetBaseException()));
}
catch (Exception e)
{
return(SetPendingException(e));
}
}
// Pushes out and ref return values
for (int index = 0; index < lastCalledMethod.outList.Length; index++)
{
nReturnValues++;
//for(int i=0;i<lastCalledMethod.outList.Length;i++)
translator.push(luaState, lastCalledMethod.args[lastCalledMethod.outList[index]]);
}
return(nReturnValues < 1 ? 1 : nReturnValues);
}
public int pushError(IntPtr luaState, string msg)
{
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_pushstring(luaState, msg);
return(2);
}
/*
* Called by the __index metafunction of CLR objects in case the
* method is not cached or it is a field/property/event.
* Receives the object and the member name as arguments and returns
* either the value of the member or a delegate to call it.
* If the member does not exist returns nil.
*/
private int getMethod(IntPtr 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();
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
if (methodName != null && isMemberPresent(objType, methodName))
{
return(getMember(luaState, objType, obj, methodName, BindingFlags.Instance));
}
// 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)
{
object[] arr = (object[])obj;
translator.push(luaState, arr[(int)((double)index)]);
}
else
{
// Try to use get_Item to index into this .net object
MethodInfo getter = objType.GetMethod("get_Item");
ParameterInfo[] actualParms = (getter != null) ? getter.GetParameters() : null;
if (actualParms == null || actualParms.Length != 1)
{
translator.throwError(luaState, "method not found (or no indexer): " + index);
LuaDLL.lua_pushnil(luaState);
}
else
{
// Get the index in a form acceptable to the getter
index = translator.getAsType(luaState, 2, actualParms[0].ParameterType);
object[] args = new object[1];
// Just call the indexer - if out of bounds an exception will happen
args[0] = index;
try
{
object result = getter.Invoke(obj, args);
translator.push(luaState, result);
}
catch (TargetInvocationException e)
{
// Provide a more readable description for the common case of key not found
if (e.InnerException is KeyNotFoundException)
{
translator.throwError(luaState, "key '" + index + "' not found ");
}
else
{
translator.throwError(luaState, "exception indexing '" + index + "' " + e.Message);
}
LuaDLL.lua_pushnil(luaState);
}
}
}
LuaDLL.lua_pushboolean(luaState, false);
return(2);
}
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);
}
private int getMember(IntPtr luaState, IReflect objType, object obj, string methodName, BindingFlags bindingType)
{
bool flag = false;
MemberInfo memberInfo = null;
object obj2 = this.checkMemberCache(this.memberCache, objType, methodName);
if (obj2 is LuaCSFunction)
{
this.translator.pushFunction(luaState, (LuaCSFunction)obj2);
this.translator.push(luaState, true);
return(2);
}
if (obj2 != null)
{
memberInfo = (MemberInfo)obj2;
}
else
{
MemberInfo[] member = objType.GetMember(methodName, bindingType | BindingFlags.Public | BindingFlags.IgnoreCase);
if (member.Length > 0)
{
memberInfo = member[0];
}
else
{
member = objType.GetMember(methodName, bindingType | BindingFlags.Static | BindingFlags.Public | BindingFlags.IgnoreCase);
if (member.Length > 0)
{
memberInfo = member[0];
flag = true;
}
}
}
if (memberInfo != null)
{
if (memberInfo.MemberType == MemberTypes.Field)
{
FieldInfo fieldInfo = (FieldInfo)memberInfo;
if (obj2 == null)
{
this.setMemberCache(this.memberCache, objType, methodName, memberInfo);
}
try
{
this.translator.push(luaState, fieldInfo.GetValue(obj));
}
catch
{
LuaDLL.lua_pushnil(luaState);
}
}
else if (memberInfo.MemberType == MemberTypes.Property)
{
PropertyInfo propertyInfo = (PropertyInfo)memberInfo;
if (obj2 == null)
{
this.setMemberCache(this.memberCache, objType, methodName, memberInfo);
}
try
{
object o = propertyInfo.GetGetMethod().Invoke(obj, null);
this.translator.push(luaState, o);
}
catch (ArgumentException)
{
if (objType is Type && (Type)objType != typeof(object))
{
return(this.getMember(luaState, ((Type)objType).BaseType, obj, methodName, bindingType));
}
LuaDLL.lua_pushnil(luaState);
}
catch (TargetInvocationException e)
{
this.ThrowError(luaState, e);
LuaDLL.lua_pushnil(luaState);
}
}
else if (memberInfo.MemberType == MemberTypes.Event)
{
EventInfo eventInfo = (EventInfo)memberInfo;
if (obj2 == null)
{
this.setMemberCache(this.memberCache, objType, methodName, memberInfo);
}
this.translator.push(luaState, new RegisterEventHandler(this.translator.pendingEvents, obj, eventInfo));
}
else if (!flag)
{
if (memberInfo.MemberType != MemberTypes.NestedType)
{
LuaCSFunction luaCSFunction = new LuaCSFunction(new LuaMethodWrapper(this.translator, objType, methodName, bindingType).call);
if (obj2 == null)
{
this.setMemberCache(this.memberCache, objType, methodName, luaCSFunction);
}
this.translator.pushFunction(luaState, luaCSFunction);
this.translator.push(luaState, true);
return(2);
}
if (obj2 == null)
{
this.setMemberCache(this.memberCache, objType, methodName, memberInfo);
}
string name = memberInfo.Name;
Type declaringType = memberInfo.DeclaringType;
string className = declaringType.FullName + "+" + name;
Type t = this.translator.FindType(className);
this.translator.pushType(luaState, t);
}
else
{
this.translator.throwError(luaState, "can't pass instance to static method " + methodName);
LuaDLL.lua_pushnil(luaState);
}
}
else
{
this.translator.throwError(luaState, "unknown member name " + methodName);
LuaDLL.lua_pushnil(luaState);
}
this.translator.push(luaState, false);
return(2);
}
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);
}
/*
* Called by the __index metafunction of CLR objects in case the
* method is not cached or it is a field/property/event.
* Receives the object and the member name as arguments and returns
* either the value of the member or a delegate to call it.
* If the member does not exist returns nil.
*/
private int getMethod(IntPtr 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.GetStackObject(luaState, 2);
Type indexType = index.GetType();
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 && isMemberPresent(objType, methodName))
{
return(getMember(luaState, objType, obj, methodName, BindingFlags.Instance | BindingFlags.IgnoreCase));
}
}
catch { }
// 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);
if (objType.UnderlyingSystemType == typeof(float[]))
{
float[] arr = ((float[])obj);
translator.push(luaState, arr[intIndex]);
}
else if (objType.UnderlyingSystemType == typeof(double[]))
{
double[] arr = ((double[])obj);
translator.push(luaState, arr[intIndex]);
}
else if (objType.UnderlyingSystemType == typeof(int[]))
{
int[] arr = ((int[])obj);
translator.push(luaState, arr[intIndex]);
}
else
{
object[] arr = (object[])obj;
translator.push(luaState, arr[intIndex]);
}
}
else
{
// Try to use get_Item to index into this .net object
//MethodInfo getter = objType.GetMethod("get_Item");
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)
{
translator.throwError(luaState, "method not found (or no indexer): " + index);
LuaDLL.lua_pushnil(luaState);
}
else
{
// Get the index in a form acceptable to the getter
index = translator.getAsType(luaState, 2, actualParms[0].ParameterType);
object[] args = new object[1];
// Just call the indexer - if out of bounds an exception will happen
args[0] = index;
try
{
object result = getter.Invoke(obj, args);
translator.push(luaState, result);
}
catch (TargetInvocationException e)
{
// Provide a more readable description for the common case of key not found
if (e.InnerException is KeyNotFoundException)
{
translator.throwError(luaState, "key '" + index + "' not found ");
}
else
{
translator.throwError(luaState, "exception indexing '" + index + "' " + e.Message);
}
LuaDLL.lua_pushnil(luaState);
}
}
}
}
}
}
LuaDLL.lua_pushboolean(luaState, false);
return(2);
}
public int call(IntPtr luaState)
{
MethodBase method = this._Method;
object obj = this._Target;
bool flag = true;
int num = 0;
if (!LuaDLL.lua_checkstack(luaState, 5))
{
throw new LuaException("Lua stack overflow");
}
bool flag2 = (this._BindingType & BindingFlags.Static) == BindingFlags.Static;
this.SetPendingException(null);
if (method == null)
{
if (flag2)
{
obj = null;
}
else
{
obj = this._ExtractTarget(luaState, 1);
}
if (this._LastCalledMethod.cachedMethod != null)
{
int num2 = (!flag2) ? 1 : 0;
int num3 = LuaDLL.lua_gettop(luaState) - num2;
MethodBase cachedMethod = this._LastCalledMethod.cachedMethod;
if (num3 == this._LastCalledMethod.argTypes.Length)
{
if (!LuaDLL.lua_checkstack(luaState, this._LastCalledMethod.outList.Length + 6))
{
throw new LuaException("Lua stack overflow");
}
object[] args = this._LastCalledMethod.args;
try
{
for (int i = 0; i < this._LastCalledMethod.argTypes.Length; i++)
{
MethodArgs methodArgs = this._LastCalledMethod.argTypes[i];
object obj2 = methodArgs.extractValue(luaState, i + 1 + num2);
if (this._LastCalledMethod.argTypes[i].isParamsArray)
{
args[methodArgs.index] = this._Translator.tableToArray(obj2, methodArgs.paramsArrayType);
}
else
{
args[methodArgs.index] = obj2;
}
if (args[methodArgs.index] == null && !LuaDLL.lua_isnil(luaState, i + 1 + num2))
{
throw new LuaException("argument number " + (i + 1) + " is invalid");
}
}
if ((this._BindingType & BindingFlags.Static) == BindingFlags.Static)
{
this._Translator.push(luaState, cachedMethod.Invoke(null, args));
}
else if (this._LastCalledMethod.cachedMethod.IsConstructor)
{
this._Translator.push(luaState, ((ConstructorInfo)cachedMethod).Invoke(args));
}
else
{
this._Translator.push(luaState, cachedMethod.Invoke(obj, args));
}
flag = false;
}
catch (TargetInvocationException ex)
{
int result = this.SetPendingException(ex.GetBaseException());
return(result);
}
catch (Exception pendingException)
{
if (this._Members.Length == 1)
{
int result = this.SetPendingException(pendingException);
return(result);
}
}
}
}
if (flag)
{
if (!flag2)
{
if (obj == null)
{
this._Translator.throwError(luaState, string.Format("instance method '{0}' requires a non null target object", this._MethodName));
LuaDLL.lua_pushnil(luaState);
return(1);
}
LuaDLL.lua_remove(luaState, 1);
}
bool flag3 = false;
string text = null;
MemberInfo[] members = this._Members;
for (int j = 0; j < members.Length; j++)
{
MemberInfo memberInfo = members[j];
text = memberInfo.ReflectedType.Name + "." + memberInfo.Name;
MethodBase method2 = (MethodInfo)memberInfo;
bool flag4 = this._Translator.matchParameters(luaState, method2, ref this._LastCalledMethod);
if (flag4)
{
flag3 = true;
break;
}
}
if (!flag3)
{
string message = (text != null) ? ("invalid arguments to method: " + text) : "invalid arguments to method call";
LuaDLL.luaL_error(luaState, message);
LuaDLL.lua_pushnil(luaState);
this.ClearCachedArgs();
return(1);
}
}
}
else if (method.ContainsGenericParameters)
{
this._Translator.matchParameters(luaState, method, ref this._LastCalledMethod);
if (method.IsGenericMethodDefinition)
{
List <Type> list = new List <Type>();
object[] args2 = this._LastCalledMethod.args;
for (int k = 0; k < args2.Length; k++)
{
object obj3 = args2[k];
list.Add(obj3.GetType());
}
MethodInfo methodInfo = (method as MethodInfo).MakeGenericMethod(list.ToArray());
this._Translator.push(luaState, methodInfo.Invoke(obj, this._LastCalledMethod.args));
flag = false;
}
else if (method.ContainsGenericParameters)
{
LuaDLL.luaL_error(luaState, "unable to invoke method on generic class as the current method is an open generic method");
LuaDLL.lua_pushnil(luaState);
this.ClearCachedArgs();
return(1);
}
}
else
{
if (!method.IsStatic && !method.IsConstructor && obj == null)
{
obj = this._ExtractTarget(luaState, 1);
LuaDLL.lua_remove(luaState, 1);
}
if (!this._Translator.matchParameters(luaState, method, ref this._LastCalledMethod))
{
LuaDLL.luaL_error(luaState, "invalid arguments to method call");
LuaDLL.lua_pushnil(luaState);
this.ClearCachedArgs();
return(1);
}
}
if (flag)
{
if (!LuaDLL.lua_checkstack(luaState, this._LastCalledMethod.outList.Length + 6))
{
this.ClearCachedArgs();
throw new LuaException("Lua stack overflow");
}
try
{
if (flag2)
{
this._Translator.push(luaState, this._LastCalledMethod.cachedMethod.Invoke(null, this._LastCalledMethod.args));
}
else if (this._LastCalledMethod.cachedMethod.IsConstructor)
{
this._Translator.push(luaState, ((ConstructorInfo)this._LastCalledMethod.cachedMethod).Invoke(this._LastCalledMethod.args));
}
else
{
this._Translator.push(luaState, this._LastCalledMethod.cachedMethod.Invoke(obj, this._LastCalledMethod.args));
}
}
catch (TargetInvocationException ex2)
{
this.ClearCachedArgs();
int result = this.SetPendingException(ex2.GetBaseException());
return(result);
}
catch (Exception pendingException2)
{
this.ClearCachedArgs();
int result = this.SetPendingException(pendingException2);
return(result);
}
}
for (int l = 0; l < this._LastCalledMethod.outList.Length; l++)
{
num++;
this._Translator.push(luaState, this._LastCalledMethod.args[this._LastCalledMethod.outList[l]]);
}
if (!this._LastCalledMethod.IsReturnVoid && num > 0)
{
num++;
}
this.ClearCachedArgs();
return((num >= 1) ? num : 1);
}
public static void Push(IntPtr L, object obj)
{
if (obj == null)
{
LuaDLL.lua_pushnil(L);
return;
}
Type type = obj.GetType();
if (type.get_IsValueType())
{
if (type == typeof(bool))
{
bool value = (bool)obj;
LuaDLL.lua_pushboolean(L, value);
}
else if (type.get_IsEnum())
{
ToLua.Push(L, (Enum)obj);
}
else if (type.get_IsPrimitive())
{
double number = LuaMisc.ToDouble(obj);
LuaDLL.lua_pushnumber(L, number);
}
else if (type == typeof(Vector3))
{
ToLua.Push(L, (Vector3)obj);
}
else if (type == typeof(Quaternion))
{
ToLua.Push(L, (Quaternion)obj);
}
else if (type == typeof(Vector2))
{
ToLua.Push(L, (Vector2)obj);
}
else if (type == typeof(Vector4))
{
ToLua.Push(L, (Vector4)obj);
}
else if (type == typeof(Color))
{
ToLua.Push(L, (Color)obj);
}
else if (type == typeof(RaycastHit))
{
ToLua.Push(L, (RaycastHit)obj);
}
else if (type == typeof(Touch))
{
ToLua.Push(L, (Touch)obj);
}
else if (type == typeof(Ray))
{
ToLua.Push(L, (Ray)obj);
}
else if (type == typeof(Bounds))
{
ToLua.Push(L, (Bounds)obj);
}
else if (type == typeof(LayerMask))
{
ToLua.PushLayerMask(L, (LayerMask)obj);
}
else
{
ToLua.PushValue(L, (ValueType)obj);
}
}
else if (type.get_IsArray())
{
ToLua.Push(L, (Array)obj);
}
else if (type == typeof(string))
{
LuaDLL.lua_pushstring(L, (string)obj);
}
else if (type.IsSubclassOf(typeof(LuaBaseRef)))
{
ToLua.Push(L, (LuaBaseRef)obj);
}
else if (type.IsSubclassOf(typeof(Object)))
{
ToLua.Push(L, (Object)obj);
}
else if (type.IsSubclassOf(typeof(TrackedReference)))
{
ToLua.Push(L, (TrackedReference)obj);
}
else if (type == typeof(LuaByteBuffer))
{
LuaByteBuffer luaByteBuffer = (LuaByteBuffer)obj;
LuaDLL.lua_pushlstring(L, luaByteBuffer.buffer, luaByteBuffer.buffer.Length);
}
else if (type.IsSubclassOf(typeof(Delegate)))
{
ToLua.Push(L, (Delegate)obj);
}
else if (obj is IEnumerator)
{
ToLua.Push(L, (IEnumerator)obj);
}
else if (type == typeof(EventObject))
{
ToLua.Push(L, (EventObject)obj);
}
else if (type == ToLua.monoType)
{
ToLua.Push(L, (Type)obj);
}
else
{
ToLua.PushObject(L, obj);
}
}
