public bool CanCast(System.Type type)
{
return(ReflectionUtil.CanCast(type, Value));
}
public bool CanCast <T> ()
{
return(ReflectionUtil.CanCast(typeof(T), Value));
}
CSNode VisitSelectors(CSScriptParser.SelectorContext[] selectors, int line, int col)
{
int selectorLen = selectors.Length;
string firstName = selectors[0].NAME().GetText();
if (_state.HasVariable(firstName))
{
CSLocalVariableNode node = new CSLocalVariableNode(line, col);
node._declaration = false;
node._variableName = firstName;
if (selectorLen == 1)
{
return(node);
}
else
{
CSSelectorNode selectorNode = new CSSelectorNode(line, col);
selectorNode._selectors = GetSelectorStrings(selectors, 1);
CSOPDotNode dotNode = new CSOPDotNode(line, col);
dotNode._children = new CSNode[2];
dotNode._children[0] = node;
dotNode._children[1] = selectorNode;
return(dotNode);
}
}
string currentTypeString = null;
System.Type currentType = null;
int typeStart = -1;
int typeEnd = 0;
for (int i = 0; i < selectorLen; ++i)
{
CSScriptParser.SelectorContext next = selectors[i];
string name = next.NAME().GetText();
currentTypeString = GetTypeString(selectors, i + 1, typeStart);
System.Type nextType = ReflectionUtil.GetType(currentTypeString);
if (typeStart == -1 && nextType != null)
{
typeStart = i;
}
if (currentType != null && nextType == null)
{
typeEnd = i;
break;
}
currentType = nextType;
}
if (currentType != null)
{
if (typeEnd == 0)
{
CSTypeNode node = new CSTypeNode(line, col);
node._typeString = currentTypeString;
node._type = currentType;
node._assemblyName = currentType.Assembly.GetCleanName();
return(node);
}
else
{
CSStaticVariableNode node = new CSStaticVariableNode(line, col);
string varName = selectors[typeEnd].NAME().GetText();
node._variableName = varName;
node._staticType = currentType;
node._type = ReflectionUtil.GetFieldType(currentType, varName);
if (node._type == null)
{
CSLog.E(node, "type: " + currentType.FullName + " doesn't have: " + varName);
}
if (selectorLen == typeEnd + 1)
{
return(node);
}
else
{
CSSelectorNode selectorNode = new CSSelectorNode(line, col);
selectorNode._selectors = GetSelectorStrings(selectors, typeEnd + 1);
CSOPDotNode dotNode = new CSOPDotNode(line, col);
dotNode._children = new CSNode[2];
dotNode._children[0] = node;
dotNode._children[1] = selectorNode;
return(dotNode);
}
}
}
else
{
CSSelectorNode node = new CSSelectorNode(line, col);
node._selectors = GetSelectorStrings(selectors, 0);
return(node);
}
}
string _GetTypeString(
object[] vartypes,
int varCount,
int typeStart,
System.Func <object, string> getName,
System.Func <object, CSScriptParser.Generic_parametersContext> getGenericParams)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
System.Text.StringBuilder sbTemplate = new System.Text.StringBuilder();
sbTemplate.Append('[');
bool isThereTemplate = false;
for (int i = 0; i < varCount; ++i)
{
object next = vartypes[i];
if (i != 0)
{
if (typeStart >= 0 && typeStart < i)
{
sb.Append('+');
}
else
{
sb.Append('.');
}
}
string name = getName(next);
sb.Append(ReflectionUtil.GetCleanNameIfPrimitive(name));
CSScriptParser.Generic_parametersContext genericParameters = getGenericParams(next);
if (genericParameters != null)
{
CSScriptParser.TypeContext[] genericTypes = genericParameters.type();
int tempVarCount = genericTypes.Length;
if (tempVarCount > 0)
{
if (isThereTemplate)
{
sbTemplate.Append(',');
}
else
{
isThereTemplate = true;
}
sb.Append('`');
sb.Append(tempVarCount.ToString());
sbTemplate.Append('[');
for (int j = 0; j < tempVarCount; ++j)
{
if (j != 0)
{
sbTemplate.Append("], [");
}
CSTypeNode child = VisitType(genericTypes[j]) as CSTypeNode;
sbTemplate.Append(child._typeString);
}
sbTemplate.Append(']');
}
}
}
sbTemplate.Append(']');
if (isThereTemplate)
{
sb.Append(sbTemplate.ToString());
}
string typeString = sb.ToString();
return(typeString);
}
public override CSNode VisitNewExp(CSScriptParser.NewExpContext context)
{
CSOPNewNode node = new CSOPNewNode(context.Start.Line, context.Start.Column);
node._children = new CSNode[6];
CSScriptParser.ParametersContext parameters = context.parameters();
CSScriptParser.Array_indexContext arrayIndex = context.array_index();
System.Type currentType;
string currentTypeString = VisitTypeElements(context.type_elements(), out currentType);
if (arrayIndex != null)
{
currentTypeString = currentTypeString + "[]";
currentType = ReflectionUtil.GetType(currentTypeString);
}
if (currentType == null)
{
CSLog.E(node, "unknown type: " + currentTypeString);
return(null);
}
CSTypeNode typeNode = new CSTypeNode(context.Start.Line, context.Start.Column);
typeNode._type = currentType;
typeNode._typeString = currentTypeString;
typeNode._assemblyName = currentType.Assembly.GetCleanName();
node._children[0] = typeNode;
if (parameters != null)
{
node._children[1] = Visit(parameters);
}
if (arrayIndex != null)
{
node._children[2] = Visit(arrayIndex);
}
CSScriptParser.InitializerContext initializer = context.initializer();
if (initializer != null)
{
CSScriptParser.Array_initializerContext arrayInitializer = initializer.array_initializer();
if (arrayInitializer != null)
{
node._children[3] = Visit(arrayInitializer);
}
CSScriptParser.Dictionary_initializerContext dictionaryInitializer = initializer.dictionary_initializer();
if (dictionaryInitializer != null)
{
node._children[4] = Visit(dictionaryInitializer);
}
CSScriptParser.Class_initializerContext classInitializer = initializer.class_initializer();
if (classInitializer != null)
{
node._children[5] = Visit(classInitializer);
}
}
return(node);
}
public override CSObject Evaluate(CSState state, CSObject curObj)
{
if (ChildCount != 6)
{
CSLog.E(this, "new operator has invalid # of children...");
return(null);
}
if (NewType == null || NewType._type == null)
{
CSLog.E(this, "new operator does not have a proper type...");
return(null);
}
object newInstance = null;
System.Type type = NewType._type;
if (IsArray)
{
System.Type innerType = type.GetElementType();
int count = ArrayIndex.EvaluateIndex(null, null);
if (ArrayInitializer != null)
{
object[] elements = ArrayInitializer.EvaluateElements(state, curObj, innerType);
int len = elements.Length;
int allocCount = (len > count? len : count);
newInstance = System.Activator.CreateInstance(type, allocCount);
System.Array array = newInstance as System.Array;
for (int i = 0; i < len; ++i)
{
array.SetValue(elements[i], i);
}
}
else
{
if (count < 0)
{
throw new System.ArgumentException("array needs an initializer or count");
}
else
{
newInstance = System.Activator.CreateInstance(type, count);
}
}
}
else
{
object[] parameters = null;
if (NewParameters != null && NewParameters.ChildCount > 0)
{
CSNode[] pchildren = NewParameters._children;
int pCount = pchildren.Length;
parameters = new object[pCount];
for (int i = 0; i < pCount; ++i)
{
parameters[i] = pchildren[i].Evaluate(state, curObj).Value;
}
}
if (parameters == null)
{
newInstance = System.Activator.CreateInstance(type);
}
else
{
newInstance = System.Activator.CreateInstance(type, parameters);
}
CSDictionaryInitializerNode dictInitializer = DictionaryInitializer;
if (dictInitializer != null)
{
IDictionary dict = newInstance as IDictionary;
if (dict == null)
{
throw new System.InvalidOperationException("you cannot use a dictionary initializer on non dictionary object");
}
System.Type keyType = typeof(object);
System.Type valueType = typeof(object);
System.Type[] genericTypes = NewType._type.GetGenericArguments();
if (genericTypes != null)
{
if (genericTypes.Length > 2)
{
keyType = genericTypes[0];
valueType = genericTypes[1];
}
}
int len = dictInitializer.Count;
for (int i = 0; i < len; ++i)
{
KeyValuePair <object, object> element = dictInitializer.Evaluate(state, curObj, i, keyType, valueType);
dict.Add(element.Key, element.Value);
}
}
CSClassInitializerNode classInitializer = ClassInitializer;
if (classInitializer != null)
{
int len = classInitializer.Count;
for (int i = 0; i < len; ++i)
{
KeyValuePair <string, object> element = classInitializer.Evaluate(state, curObj, i, newInstance);
ReflectionUtil.Set(newInstance, element.Key, element.Value);
}
}
CSArrayInitializerNode arrayInitializer = ArrayInitializer;
IList list = newInstance as IList;
if (ArrayInitializer != null)
{
if (list == null)
{
CSLog.E("array initializer cannot used for : " + type.ToString());
}
else
{
System.Type elementType = ReflectionUtil.GetIListElementType(NewType._type);
if (elementType == null)
{
CSLog.E("array initializer cannot used for : " + type.ToString());
}
object[] elements = ArrayInitializer.EvaluateElements(state, curObj, elementType);
int len = elements.Length;
for (int i = 0; i < len; ++i)
{
list.Add(elements[i]);
}
}
}
}
CSObject obj = CSObject.TempVariableObject(this, type, newInstance);
return(obj);
}
