private void OutputOperatorInvoke(InvocationInfo ii, SyntaxNode node)
{
if (SymbolTable.Instance.IsCs2LuaSymbol(ii.MethodSymbol))
{
CodeBuilder.AppendFormat("{0}.", ii.ClassKey);
string manglingName = NameMangling(ii.MethodSymbol);
CodeBuilder.Append(manglingName);
CodeBuilder.Append("(");
OutputArgumentList(ii.Args, ii.DefaultValueArgs, ii.GenericTypeArgs, ii.ArrayToParams, false, node, ii.ArgConversions.ToArray());
CodeBuilder.Append(")");
}
else
{
string method = ii.MethodSymbol.Name;
string luaOp = string.Empty;
if (SymbolTable.ForSlua)
{
//slua导出时把重载操作符导出成lua实例方法了，然后利用lua实例上支持的操作符元方法在运行时绑定到重载实现
//这里把lua支持的操作符方法转成lua操作（可能比invokeexternoperator要快一些）
if (method == "op_Addition")
{
luaOp = "+";
}
else if (method == "op_Subtraction")
{
luaOp = "-";
}
else if (method == "op_Multiply")
{
luaOp = "*";
}
else if (method == "op_Division")
{
luaOp = "/";
}
else if (method == "op_UnaryNegation")
{
luaOp = "-";
}
else if (method == "op_UnaryPlus")
{
luaOp = "+";
}
else if (method == "op_LessThan")
{
luaOp = "<";
}
else if (method == "op_GreaterThan")
{
luaOp = ">";
}
else if (method == "op_LessThanOrEqual")
{
luaOp = "<=";
}
else if (method == "op_GreaterThanOrEqual")
{
luaOp = ">= ";
}
}
if (string.IsNullOrEmpty(luaOp))
{
CodeBuilder.AppendFormat("invokeexternoperator({0}, ", ii.GenericClassKey);
CodeBuilder.AppendFormat("\"{0}\"", method);
CodeBuilder.Append(", ");
OutputArgumentList(ii.Args, ii.DefaultValueArgs, ii.GenericTypeArgs, ii.ArrayToParams, false, node, ii.ArgConversions.ToArray());
CodeBuilder.Append(")");
}
else
{
if (ii.Args.Count == 1)
{
if (luaOp == "-")
{
CodeBuilder.Append("(");
CodeBuilder.Append(luaOp);
CodeBuilder.Append(" ");
OutputExpressionSyntax(ii.Args[0], ii.ArgConversions[0]);
CodeBuilder.Append(")");
}
}
else if (ii.Args.Count == 2)
{
CodeBuilder.Append("(");
OutputExpressionSyntax(ii.Args[0], ii.ArgConversions[0]);
CodeBuilder.Append(" ");
CodeBuilder.Append(luaOp);
CodeBuilder.Append(" ");
OutputExpressionSyntax(ii.Args[1], ii.ArgConversions[1]);
CodeBuilder.Append(")");
}
}
}
}
public override void VisitConditionalAccessExpression(ConditionalAccessExpressionSyntax node)
{
CodeBuilder.Append("condaccess(");
VisitExpressionSyntax(node.Expression);
CodeBuilder.Append(", ");
var elementBinding = node.WhenNotNull as ElementBindingExpressionSyntax;
if (null != elementBinding)
{
var oper = m_Model.GetOperation(node.WhenNotNull);
var symInfo = m_Model.GetSymbolInfo(node.WhenNotNull);
var sym = symInfo.Symbol;
var psym = sym as IPropertySymbol;
if (null != sym && sym.IsStatic)
{
var ci = m_ClassInfoStack.Peek();
AddReferenceAndTryDeriveGenericTypeInstance(ci, sym);
}
if (null != psym && psym.IsIndexer)
{
CodeBuilder.Append("(function() return ");
CodeBuilder.AppendFormat("get{0}{1}indexer(", psym.ContainingAssembly == m_SymbolTable.AssemblySymbol ? string.Empty : "extern", psym.IsStatic ? "static" : "instance");
if (psym.IsStatic)
{
string fullName = ClassInfo.GetFullName(psym.ContainingType);
CodeBuilder.Append(fullName);
}
else
{
VisitExpressionSyntax(node.Expression);
}
CodeBuilder.Append(", ");
if (!psym.IsStatic)
{
string fnOfIntf = "nil";
CheckExplicitInterfaceAccess(psym.GetMethod, ref fnOfIntf);
CodeBuilder.AppendFormat("{0}, ", fnOfIntf);
}
string manglingName = NameMangling(psym.GetMethod);
CodeBuilder.AppendFormat("\"{0}\", ", manglingName);
InvocationInfo ii = new InvocationInfo();
List <ExpressionSyntax> args = new List <ExpressionSyntax> {
node.WhenNotNull
};
ii.Init(psym.GetMethod, args, m_Model);
OutputArgumentList(ii.Args, ii.DefaultValueArgs, ii.GenericTypeArgs, ii.ArrayToParams, false, elementBinding);
CodeBuilder.Append(")");
CodeBuilder.Append("; end)");
}
else if (oper.Kind == OperationKind.ArrayElementReferenceExpression)
{
CodeBuilder.Append("(function() return ");
VisitExpressionSyntax(node.Expression);
CodeBuilder.Append("[");
VisitExpressionSyntax(node.WhenNotNull);
CodeBuilder.Append(" + 1]");
CodeBuilder.Append("; end)");
}
else if (null != sym)
{
CodeBuilder.Append("(function() return ");
CodeBuilder.AppendFormat("get{0}{1}element(", sym.ContainingAssembly == m_SymbolTable.AssemblySymbol ? string.Empty : "extern", sym.IsStatic ? "static" : "instance");
if (sym.IsStatic)
{
string fullName = ClassInfo.GetFullName(sym.ContainingType);
CodeBuilder.Append(fullName);
}
else
{
VisitExpressionSyntax(node.Expression);
}
CodeBuilder.Append(", ");
CodeBuilder.AppendFormat("\"{0}\", ", sym.Name);
VisitExpressionSyntax(node.WhenNotNull);
CodeBuilder.Append(")");
CodeBuilder.Append("; end)");
}
else
{
ReportIllegalSymbol(node, symInfo);
}
}
else
{
CodeBuilder.Append("(function() return ");
VisitExpressionSyntax(node.Expression);
VisitExpressionSyntax(node.WhenNotNull);
CodeBuilder.Append("; end)");
}
CodeBuilder.Append(")");
}
public override void VisitObjectCreationExpression(ObjectCreationExpressionSyntax node)
{
var ci = m_ClassInfoStack.Peek();
var oper = m_Model.GetOperation(node);
var objectCreate = oper as IObjectCreationExpression;
if (null != objectCreate)
{
var typeSymInfo = objectCreate.Type;
var sym = objectCreate.Constructor;
m_ObjectCreateStack.Push(typeSymInfo);
string fullTypeName = ClassInfo.GetFullName(typeSymInfo);
//处理ref/out参数
InvocationInfo ii = new InvocationInfo();
ii.Init(sym, node.ArgumentList, m_Model);
AddReferenceAndTryDeriveGenericTypeInstance(ci, sym);
bool isCollection = IsImplementationOfSys(typeSymInfo, "ICollection");
bool isExternal = typeSymInfo.ContainingAssembly != m_SymbolTable.AssemblySymbol;
string ctor = NameMangling(sym);
string localName = string.Format("__compiler_newobject_{0}", node.GetLocation().GetLineSpan().StartLinePosition.Line);
if (ii.ReturnArgs.Count > 0)
{
CodeBuilder.Append("(function() ");
CodeBuilder.AppendFormat("local {0}; {1}", localName, localName);
CodeBuilder.Append(", ");
OutputExpressionList(ii.ReturnArgs);
CodeBuilder.Append(" = ");
}
if (isCollection)
{
bool isDictionary = IsImplementationOfSys(typeSymInfo, "IDictionary");
bool isList = IsImplementationOfSys(typeSymInfo, "IList");
if (isDictionary)
{
//字典对象的处理
CodeBuilder.AppendFormat("new{0}dictionary({1}, ", isExternal ? "extern" : string.Empty, fullTypeName);
if (isExternal)
{
CodeBuilder.AppendFormat("\"{0}\", ", fullTypeName);
}
}
else if (isList)
{
//列表对象的处理
CodeBuilder.AppendFormat("new{0}list({1}, ", isExternal ? "extern" : string.Empty, fullTypeName);
if (isExternal)
{
CodeBuilder.AppendFormat("\"{0}\", ", fullTypeName);
}
}
else
{
//集合对象的处理
CodeBuilder.AppendFormat("new{0}collection({1}, ", isExternal ? "extern" : string.Empty, fullTypeName);
if (isExternal)
{
CodeBuilder.AppendFormat("\"{0}\", ", fullTypeName);
}
}
}
else
{
CodeBuilder.AppendFormat("new{0}object({1}, ", isExternal ? "extern" : string.Empty, fullTypeName);
if (isExternal)
{
CodeBuilder.AppendFormat("\"{0}\", ", fullTypeName);
}
}
if (string.IsNullOrEmpty(ctor))
{
CodeBuilder.Append("nil");
}
else
{
CodeBuilder.AppendFormat("\"{0}\"", ctor);
}
if (isExternal)
{
ClassSymbolInfo csi;
if (m_SymbolTable.ClassSymbols.TryGetValue(fullTypeName, out csi))
{
if (csi.ExtensionClasses.Count > 0)
{
CodeBuilder.Append(", (function(obj)");
foreach (var pair in csi.ExtensionClasses)
{
string refname = pair.Key;
CodeBuilder.AppendFormat(" {0}.__install_{1}(obj);", fullTypeName, refname.Replace(".", "_"));
}
CodeBuilder.Append(" end)");
}
else
{
CodeBuilder.Append(", nil");
}
}
else
{
CodeBuilder.Append(", nil");
}
}
if (null != node.Initializer)
{
CodeBuilder.Append(", ");
if (!isCollection)
{
CodeBuilder.Append("{");
}
VisitInitializerExpression(node.Initializer);
if (!isCollection)
{
CodeBuilder.Append("}");
}
}
else
{
CodeBuilder.Append(", {}");
}
if (ii.Args.Count + ii.DefaultValueArgs.Count + ii.GenericTypeArgs.Count > 0)
{
CodeBuilder.Append(", ");
}
OutputArgumentList(ii.Args, ii.DefaultValueArgs, ii.GenericTypeArgs, ii.ArrayToParams, false, node);
CodeBuilder.Append(")");
if (ii.ReturnArgs.Count > 0)
{
CodeBuilder.Append("; ");
CodeBuilder.AppendFormat("return {0}; end)()", localName);
}
m_ObjectCreateStack.Pop();
}
else
{
var methodBinding = oper as IMethodBindingExpression;
if (null != methodBinding)
{
var typeSymInfo = methodBinding.Type;
var msym = methodBinding.Method;
if (null != msym)
{
string manglingName = NameMangling(msym);
var mi = new MethodInfo();
mi.Init(msym, node);
CodeBuilder.Append("(function(");
string paramsString = string.Join(", ", mi.ParamNames.ToArray());
CodeBuilder.Append(paramsString);
CodeBuilder.Append(") ");
if (!msym.ReturnsVoid)
{
CodeBuilder.Append("return ");
}
if (msym.IsStatic)
{
AddReferenceAndTryDeriveGenericTypeInstance(ci, msym);
string className = ClassInfo.GetFullName(msym.ContainingType);
CodeBuilder.Append(className);
CodeBuilder.Append(".");
}
else
{
CodeBuilder.Append("this:");
}
CodeBuilder.Append(manglingName);
CodeBuilder.AppendFormat("({0}) end)", paramsString);
}
else
{
VisitArgumentList(node.ArgumentList);
}
}
else
{
var typeParamObjCreate = oper as ITypeParameterObjectCreationExpression;
if (null != typeParamObjCreate)
{
CodeBuilder.Append("newtypeparamobject(");
OutputType(typeParamObjCreate.Type, node, ci, "new");
CodeBuilder.Append(")");
}
else
{
Log(node, "Unknown ObjectCreationExpressionSyntax !");
}
}
}
}
public override void VisitBinaryExpression(BinaryExpressionSyntax node)
{
var ci = m_ClassInfoStack.Peek();
var oper = m_Model.GetOperation(node) as IHasOperatorMethodExpression;
if (null != oper && oper.UsesOperatorMethod)
{
IMethodSymbol msym = oper.OperatorMethod;
var castOper = oper as IConversionExpression;
if (null != castOper)
{
InvocationInfo ii = new InvocationInfo();
var arglist = new List <ExpressionSyntax>()
{
node.Left
};
ii.Init(msym, arglist, m_Model);
OutputOperatorInvoke(ii, node);
}
else
{
InvocationInfo ii = new InvocationInfo();
var arglist = new List <ExpressionSyntax>()
{
node.Left, node.Right
};
ii.Init(msym, arglist, m_Model);
OutputOperatorInvoke(ii, node);
}
}
else
{
string op = node.OperatorToken.Text;
ProcessBinaryOperator(node, ref op);
string functor;
if (s_BinaryFunctor.TryGetValue(op, out functor))
{
CodeBuilder.AppendFormat("{0}(", functor);
VisitExpressionSyntax(node.Left);
CodeBuilder.Append(", ");
if (op == "as" || op == "is")
{
var typeInfo = m_Model.GetTypeInfo(node.Right);
var type = typeInfo.Type;
OutputType(type, node, ci, op);
}
else if (op == "??")
{
var rightOper = m_Model.GetOperation(node.Right);
bool rightIsConst = null != rightOper && rightOper.ConstantValue.HasValue;
if (rightIsConst)
{
CodeBuilder.Append("true, ");
VisitExpressionSyntax(node.Right);
}
else
{
CodeBuilder.Append("false, (function() return ");
VisitExpressionSyntax(node.Right);
CodeBuilder.Append("; end)");
}
}
else
{
VisitExpressionSyntax(node.Right);
}
CodeBuilder.Append(")");
}
else if (op == "+")
{
ProcessAddOrStringConcat(node.Left, node.Right);
}
else if (op == "==" || op == "~=")
{
ProcessEqualOrNotEqual(op, node.Left, node.Right);
}
else
{
CodeBuilder.Append("(");
VisitExpressionSyntax(node.Left);
CodeBuilder.AppendFormat(" {0} ", op);
VisitExpressionSyntax(node.Right);
CodeBuilder.Append(")");
}
}
}
