private Exp ParseDi()
{
ExpDi diexp = new ExpDi(this.ExpContext);
diexp.KeyToken = (LexTokenText)Tape.Current;
diexp.SubjectExp = PopChainsExp();
MoveNext();
diexp.ArgExp = ParseExpect_Exp_Var();
if (Tape.HasCurrent == false)
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少元素类型名称");
}
else
{
if (Tape.Current is LexToken)
{
LexToken tok1 = (LexToken)Tape.Current;
if (tok1.IsKind(TokenKindKeyword.Ge))
{
diexp.GeToken = (LexTokenText)tok1;
MoveNext();
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
}
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
}
var data = Tape.Current;
if (featurer.IsThisClassName(data) || featurer.IsImportTypeName(data))
{
Exp exp = ParseTypes();
diexp.ElementTypeExp = exp;
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少元素类型名称");
}
}
return(diexp);
}
Exp parseChain()
{
//report("parseChain");
Exp leftExp = parseTerm();
if (leftExp == null)
{
return(null);
}
while (tape.Current.Kind != TokenKind.EOF)
{
if (tape.Current.Kind == TokenKind.DE)
{
ExpDe deExp = new ExpDe();
deExp.KeyToken = tape.Current;
deExp.LeftExp = leftExp;
tape.MoveNext();
Exp rightExp = parseTerm();
deExp.RightExp = rightExp;
leftExp = deExp;
}
else if (tape.Current.Kind == TokenKind.DI)
{
ExpDi diExp = new ExpDi();
diExp.KeyToken = tape.Current;
diExp.SubjectExp = leftExp;
tape.MoveNext();
Exp rightExp = parseTerm();
diExp.ArgExp = rightExp;
leftExp = diExp;
}
else
{
return(leftExp);
}
}
return(leftExp);
}
