public override string ToCode()
{
StringBuilder buf = new StringBuilder();
buf.Append(getStmtPrefix());
buf.AppendFormat("{0}({1}:{2})", CatchToken.GetText(), ExceptionTypeToken.GetText(), ExceptionNameToken.GetText());
buf.AppendLine();
buf.Append(CatchBody.ToString());
return(buf.ToString());
}
public override void Analy(AnalyStmtContext context)
{
base.Analy(context);
var symbols = this.AnalyStmtContext.Symbols;
exTypeName = ExceptionTypeToken.GetText();
exName = ExceptionNameToken.GetText();
exType = context.MethodContext.ClassContext.SearchType(exTypeName).ForType;
if (exType == null)
{
errorf(ExceptionTypeToken.Postion, "类型'{0}'不存在", exTypeName);
}
var exSymbol2 = symbols.Get(exName);
if (exSymbol2 == null)
{
exSymbol = new SymbolVar(exName, exType);
exSymbol.LoacalVarIndex = context.MethodContext.CreateLocalVarIndex(exName);
}
else
{
if (exSymbol2 is SymbolVar)
{
exSymbol = exSymbol2 as SymbolVar;
if (exSymbol.DimType != exType)
{
errorf(ExceptionNameToken.Postion, "变量'{0}'的类型与异常的类型不一致", exName);
}
}
else
{
errorf(ExceptionNameToken.Postion, "变量名称'{0}'已经使用过", exName);
}
}
symbols.Add(exSymbol);
analySubStmt(CatchBody);
}
