public ICQ_Expression Compiler_Expression_Math(IList <Token> tlist, ICQ_Environment content, int pos, int posend)
{
IList <int> sps = SplitExpressionWithOp(tlist, pos, posend);
int oppos = GetLowestMathOp(tlist, sps);
if (oppos < 0)
{
////也有可能是类型转换
//if (posend >= pos + 3 && tlist[pos].text == "(" && tlist[pos].type == TokenType.PUNCTUATION && tlist[pos + 2].text == ")" && tlist[pos + 2].type == TokenType.PUNCTUATION
// && tlist[pos + 1].type == TokenType.TYPE
// )
//{
// ICQ_Expression v;
// bool succ = Compiler_Expression(tlist, content, pos + 3, posend, out v);
// CQ_Expression_TypeConvert convert = new CQ_Expression_TypeConvert();
// convert.listParam.Add(v);
// convert.targettype = content.environment.GetTypeByKeyword(tlist[pos + 1].text).type;
// return convert;
//}
//else if (tlist[pos + 1].type == TokenType.PUNCTUATION && tlist[pos + 1].text == "[")//函数表达式
//{
// return Compiler_Expression_IndexFind(tlist, content, pos, posend);
//}
if (tlist[pos + 1].type == TokenType.PUNCTUATION && tlist[pos + 1].text == "(")//函数表达式
{
if (content.IsCoroutine(tlist[pos].text))
{
// if(tlist[pos].text == "YieldWaitForSecond")
return(Compiler_Expression_Coroutine(tlist, content, pos, posend));
}
else
{
return(Compiler_Expression_Function(tlist, content, pos, posend));
}
}
else
{
//if (!bTest && tlist[expbegin + 1].type == TokenType.PUNCTUATION && tlist[expbegin + 1].text == "(")//函数表达式
//{
// ICQ_Expression subvalue = Compiler_Expression_Function(tlist,content, expbegin, expend);
// if (null == subvalue) return false;
// else
// values.Add(subvalue);
// bTest = true;
//}
}
return(null);
}
Token tkCur = tlist[oppos];
if (tkCur.text == "=>")
{
//lambda
return(Compiler_Expression_Lambda(tlist, content, pos, posend));
}
else if (tkCur.text == "." && pos == oppos - 1 && tlist[pos].type == TokenType.TYPE)
{
int right = oppos + 1;
int rightend = posend;
ICQ_Expression valueright;
bool succ2 = Compiler_Expression(tlist, content, right, rightend, out valueright);
if (succ2)
{
CQ_Expression_GetValue vg = valueright as CQ_Expression_GetValue;
CQ_Expression_Function vf = valueright as CQ_Expression_Function;
if (vg != null)
{
CQ_Expression_StaticFind value = new CQ_Expression_StaticFind(pos, rightend, tlist[pos].line, tlist[rightend].line);
value.staticmembername = vg.value_name;
value.type = content.GetTypeByKeyword(tlist[pos].text);
return(value);
}
else if (vf != null)
{
CQ_Expression_StaticFunction value = new CQ_Expression_StaticFunction(pos, rightend, tlist[pos].line, tlist[rightend].line);
value.functionName = vf.funcname;
value.type = content.GetTypeByKeyword(tlist[pos].text);
//value.listParam.Add(valueleft);
value.listParam.AddRange(vf.listParam.ToArray());
return(value);
}
else if (valueright is CQ_Expression_SelfOp)
{
CQ_Expression_SelfOp vr = valueright as CQ_Expression_SelfOp;
CQ_Expression_StaticMath value = new CQ_Expression_StaticMath(pos, rightend, tlist[pos].line, tlist[rightend].line);
value.type = content.GetTypeByKeyword(tlist[pos].text);
value.staticmembername = vr.value_name;
value.mathop = vr.mathop;
return(value);
}
else
{
throw new Exception("不可识别的表达式:" + tkCur.ToString() + tkCur.SourcePos());
}
}
else
{
throw new Exception("不可识别的表达式:" + tkCur.ToString() + tkCur.SourcePos());
}
}
else
{
int left = pos;
int leftend = oppos - 1;
int right = oppos + 1;
int rightend = posend;
if (tkCur.text == "(")
{
ICQ_Expression v;
if (!Compiler_Expression(tlist, content, oppos + 3, posend, out v))
{
LogError(tlist, "编译表达式失败", right, rightend);
return(null);
}
CQ_Expression_TypeConvert convert = new CQ_Expression_TypeConvert(pos, posend, tlist[pos].line, tlist[posend].line);
convert.listParam.Add(v);
convert.targettype = content.GetTypeByKeyword(tlist[oppos + 1].text).type;
return(convert);
}
ICQ_Expression valueleft;
bool succ1 = Compiler_Expression(tlist, content, left, leftend, out valueleft);
ICQ_Expression valueright;
if (tkCur.text == "[")
{
rightend--;
if (!Compiler_Expression(tlist, content, right, rightend, out valueright))
{
LogError(tlist, "编译表达式失败", right, rightend);
return(null);
}
CQ_Expression_IndexFind value = new CQ_Expression_IndexFind(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.listParam.Add(valueright);
return(value);
}
else if (tkCur.text == "as")
{
CQ_Expression_TypeConvert convert = new CQ_Expression_TypeConvert(left, oppos + 1, tlist[left].line, tlist[oppos + 1].line);
convert.listParam.Add(valueleft);
convert.targettype = content.GetTypeByKeyword(tlist[oppos + 1].text).type;
return(convert);
}
else if (tkCur.text == "is")
{
CQ_Expression_TypeCheck check = new CQ_Expression_TypeCheck(left, oppos + 1, tlist[left].line, tlist[oppos + 1].line);
check.listParam.Add(valueleft);
check.targettype = content.GetTypeByKeyword(tlist[oppos + 1].text).type;
return(check);
}
bool succ2 = Compiler_Expression(tlist, content, right, rightend, out valueright);
if (succ1 && succ2 && valueright != null && valueleft != null)
{
if (tkCur.text == "=")
{
//member set
CQ_Expression_MemberFind mfinde = valueleft as CQ_Expression_MemberFind;
CQ_Expression_StaticFind sfinde = valueleft as CQ_Expression_StaticFind;
CQ_Expression_IndexFind ifinde = valueleft as CQ_Expression_IndexFind;
if (mfinde != null)
{
CQ_Expression_MemberSetValue value = new CQ_Expression_MemberSetValue(left, rightend, tlist[left].line, tlist[rightend].line);
value.membername = mfinde.membername;
value.listParam.Add(mfinde.listParam[0]);
value.listParam.Add(valueright);
return(value);
}
else if (sfinde != null)
{
CQ_Expression_StaticSetValue value = new CQ_Expression_StaticSetValue(left, rightend, tlist[left].line, tlist[rightend].line);
value.staticmembername = sfinde.staticmembername;
value.type = sfinde.type;
//value.listParam.Add(mfinde.listParam[0]);
value.listParam.Add(valueright);
return(value);
}
else if (ifinde != null)
{
CQ_Expression_IndexSetValue value = new CQ_Expression_IndexSetValue(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(ifinde.listParam[0]);
value.listParam.Add(ifinde.listParam[1]);
value.listParam.Add(valueright);
return(value);
}
else
{
throw new Exception("非法的Member Set表达式" + valueleft);
}
}
else if (tkCur.text == ".")
{
//FindMember
CQ_Expression_GetValue vg = valueright as CQ_Expression_GetValue;
CQ_Expression_Function vf = valueright as CQ_Expression_Function;
if (vg != null)
{
CQ_Expression_MemberFind value = new CQ_Expression_MemberFind(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.membername = vg.value_name;
return(value);
}
else if (vf != null)
{
CQ_Expression_MemberFunction value = new CQ_Expression_MemberFunction(left, rightend, tlist[left].line, tlist[rightend].line);
value.functionName = vf.funcname;
value.listParam.Add(valueleft);
value.listParam.AddRange(vf.listParam.ToArray());
return(value);
}
else if (valueright is CQ_Expression_SelfOp)
{
CQ_Expression_SelfOp vr = valueright as CQ_Expression_SelfOp;
CQ_Expression_MemberMath value = new CQ_Expression_MemberMath(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.membername = vr.value_name;
value.mathop = vr.mathop;
return(value);
}
throw new Exception("不可识别的表达式" + valueleft + "." + valueright);
//value.listParam.Add(valueright);
}
else if (tkCur.text == "+=" || tkCur.text == "-=" || tkCur.text == "*=" || tkCur.text == "/=" || tkCur.text == "%=")
{
//if (valueleft is CQ_Expression_MemberFind)
//{
// CQ_Expression_MemberFind vf = valueleft as CQ_Expression_MemberFind;
// CQ_Expression_MemberMath value = new CQ_Expression_MemberMath(left, rightend, tlist[left].line, tlist[rightend].line);
// value.listParam.Add(vf.listParam[0]);
// value.membername = vf.membername;
// value.mathop = tlist[oppos].text[0];
// value.listParam.Add(valueright);
// return value;
//}
//if ((valueright is CQ_Expression_Lambda ==false) && valueleft is CQ_Expression_StaticFind)
//{
// CQ_Expression_StaticFind vf = valueleft as CQ_Expression_StaticFind;
// CQ_Expression_StaticMath value = new CQ_Expression_StaticMath(left, rightend, tlist[left].line, tlist[rightend].line);
// value.type = vf.type;
// value.staticmembername = vf.staticmembername;
// value.mathop = tlist[oppos].text[0];
// value.listParam.Add(valueright);
// return value;
//}
//else
{
CQ_Expression_SelfOpWithValue value = new CQ_Expression_SelfOpWithValue(left, rightend, tlist[left].line, tlist[rightend].line);
//value.value_name = ((CQ_Expression_GetValue)valueleft).value_name;
value.listParam.Add(valueleft);
value.listParam.Add(valueright);
value.mathop = tkCur.text[0];
return(value);
}
}
else if (tkCur.text == "&&" || tkCur.text == "||")
{
CQ_Expression_Math2ValueAndOr value = new CQ_Expression_Math2ValueAndOr(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.listParam.Add(valueright);
value.mathop = tkCur.text[0];
return(value);
}
else if (tkCur.text == ">" || tkCur.text == ">=" || tkCur.text == "<" || tkCur.text == "<=" || tkCur.text == "==" || tkCur.text == "!=")
{
CQ_Expression_Math2ValueLogic value = new CQ_Expression_Math2ValueLogic(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.listParam.Add(valueright);
logictoken token = logictoken.not_equal;
if (tkCur.text == ">")
{
token = logictoken.more;
}
else if (tkCur.text == ">=")
{
token = logictoken.more_equal;
}
else if (tkCur.text == "<")
{
token = logictoken.less;
}
else if (tkCur.text == "<=")
{
token = logictoken.less_equal;
}
else if (tkCur.text == "==")
{
token = logictoken.equal;
}
else if (tkCur.text == "!=")
{
token = logictoken.not_equal;
}
value.mathop = token;
return(value);
}
else
{
char mathop = tkCur.text[0];
if (mathop == '?')
{
CQ_Expression_Math3Value value = new CQ_Expression_Math3Value(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
CQ_Expression_Math2Value vvright = valueright as CQ_Expression_Math2Value;
if (vvright.mathop != ':')
{
throw new Exception("三元表达式异常" + tkCur.ToString() + tkCur.SourcePos());
}
value.listParam.Add(vvright.listParam[0]);
value.listParam.Add(vvright.listParam[1]);
return(value);
}
else
{
CQ_Expression_Math2Value value = new CQ_Expression_Math2Value(left, rightend, tlist[left].line, tlist[rightend].line);
value.listParam.Add(valueleft);
value.listParam.Add(valueright);
value.mathop = mathop;
return(value);
}
}
}
else
{
LogError(tlist, "编译表达式失败", right, rightend);
}
}
return(null);
}
