private DefineVariableNode ParseDefineVariable(out AssignNode assign, bool haveAssign = true,
AccessLevel accessLevel = AccessLevel.Local, bool isStatic = false)
{
assign = null;
bool isArray = false;
byte rankNum = 1;
_lexer.Match(TokenType.Identifer); //TODO:使用Match函数报错
Token type = _lexer.NextToken;
if (_lexer.MatchNext("["))
{
_lexer.Next();
for (; !_lexer.Match("]"); _lexer.Next())
{
if (_lexer.Match(","))
{
rankNum++;
}
else
{
return(null); //TODO:报错 无效的秩说明符:应为","或"]"
}
}
_lexer.MatchNow("]");
isArray = true;
}
_lexer.Match(TokenType.Identifer); //TODO:使用Match函数报错
Token name = _lexer.NextToken;
_lexer.Next();
DefineVariableNode defineVariable = _syntaxFactory.GetDefineVariableNode(name, type, accessLevel, isStatic, isArray, rankNum);
if (_lexer.NextTokenContent == ";")
{
_lexer.Next();
return(defineVariable);
}
if (!haveAssign)
{
return(defineVariable);
}
_lexer.Back();
assign = ParseAssign();
return(defineVariable);
}