private static void Parse(MoveInfo parentInfo, ParsingInfo parsingInfo, ScriptInfo scriptInfo)
{
PostfixIncDec postfixIncDec = new PostfixIncDec();
int startIndex = parentInfo.CurrentIndex;
int length;
// find operand
MoveInfo operandInfo = new MoveInfo(parentInfo);
IElement operand = operandInfo.FindNextBlack(SearchDirection.RightToLeft);
if (operand != null && operand is ExpressionOperand)
{
startIndex = operandInfo.CurrentIndex;
}
else
{
throw new SyntaxException("Could not find PostfixIncDec operand", parentInfo.GetErrorInfo());
}
// build
length = (parentInfo.CurrentIndex + 1) - startIndex;
postfixIncDec.AddChildren(parentInfo.CurrentElements.GetRange(startIndex, length));
parentInfo.MoveToIndex(startIndex);
parentInfo.Replace(length, postfixIncDec);
}
public override IElement CreateCopy()
{
PostfixIncDec e = new PostfixIncDec();
e.AddChildren(this.CopyChildren());
return(e);
}
public static bool Check(MoveInfo parentInfo, ParsingInfo parsingInfo, ScriptInfo scriptInfo,
ref bool isNextOperand, ref bool isNextNeeded, out bool isSingleOperand, bool isExpStatement, bool isArrayContentDefEnabled, bool isArrayDefEnabled)
{
isSingleOperand = false;
IElement cur = parentInfo.Current;
if (isNextOperand) // operand
{
// all unary operators -> without + and -
// ex. !var
if (!isExpStatement && UnaryOperator.Check(parentInfo, parsingInfo, scriptInfo))
{
isNextOperand = true;
isNextNeeded = true;
return(true);
}
// real operand
// ex. VarName, FuncCall, etc.
if (ExpressionOperand.Check(parentInfo, parsingInfo, scriptInfo, ref isSingleOperand, isArrayContentDefEnabled, isArrayDefEnabled))
{
isNextOperand = false;
isNextNeeded = false;
return(true);
}
else
{
if (isNextNeeded)
{
throw new SyntaxException("Could not find operand", parentInfo.GetErrorInfo());
}
return(false);
}
}
else // operator
{
if (isExpStatement && PostfixIncDec.Check(parentInfo, parsingInfo, scriptInfo))
{
isSingleOperand = ExpressionOperand.IsSingle(parentInfo, parsingInfo);
isNextOperand = false;
isNextNeeded = false;
return(true);
}
if (!isExpStatement && BinaryOperator.Check(parentInfo, parsingInfo, scriptInfo))
{
isNextOperand = true;
isNextNeeded = true;
return(true);
}
if (isExpStatement && Assign.Check(parentInfo, parsingInfo, scriptInfo)) // = Expression
{
isSingleOperand = ExpressionOperand.IsSingle(parentInfo, parsingInfo);
isNextNeeded = false;
isNextOperand = false;
return(true);
}
// self thread f()
if (FuncCallModifier.Check(parentInfo, parsingInfo, scriptInfo)) // thread
{
isSingleOperand = ExpressionOperand.IsSingle(parentInfo, parsingInfo);
isNextNeeded = true;
isNextOperand = false;
return(true);
}
// self f()
// self thread f()
// NOT f() !!
if (DelegateCall.Check(parentInfo, parsingInfo, scriptInfo) || // // [[delegate]](funcArgs) | [[d]]().member* | [[d]]()[]*
FuncCall.Check(parentInfo, parsingInfo, scriptInfo)) // f() | path::f() | f().member* | f()[i]*
{
isSingleOperand = ExpressionOperand.IsSingle(parentInfo, parsingInfo);
isNextOperand = false;
isNextNeeded = false;
return(true);
}
if (isNextNeeded)
{
throw new SyntaxException("unknown operator '" + parentInfo.Current.ToString() + "'", parentInfo.GetErrorInfo());
}
else
{
return(false);
}
}
}