// TODO: dokončiť!
// zostupne podľa priority vyhľadávania
// konštanty sa pridružujú k iným operandom a určujú sa podľa kontextu!
// "string"
// "string".member
// "string"[i]
// &"FILE_LOCALIZED_STRING"
// 56 | -56 | +56
// []
// { 1, 2, 3 }
// (0,1,2)
// (0,1,2)[i]
// (subExpression)
// (subExpression).member
// (subExpression)[i]
// true
// false
// undefined
// thread
// ::func
// path::func | path::const
// var | const
// var.member
// var[i]
// as operators
// = Expression
// lastOperand [[delegate]]()
// lastOperand [[delegate]]().member
// lastOperand [[delegate]]()[i]
// lastOperand func()
// lastOperand func().member
// lastOperand func()[i]
// lastOperand path::func()
// lastOperand path::func().member
// lastOperand path::func()[i]
public static bool Check(MoveInfo parentInfo, ParsingInfo parsingInfo, ScriptInfo scriptInfo, ref bool isSingleOperand, bool isArrayContentDefEnabled, bool isArrayDefEnabled)
{
if ((isArrayDefEnabled && (ArrayDef.Check(parentInfo, parsingInfo, scriptInfo))) || // []
(isArrayContentDefEnabled && ArrayContentDef.Check(parentInfo, parsingInfo, scriptInfo))) // { 0,1,2 }
{
isSingleOperand = IsSingle(parentInfo, parsingInfo);
return(true);
}
if (StringArray.Check(parentInfo, parsingInfo, scriptInfo) || // "str" | "str".member | "str"[]
LocalizedString.Check(parentInfo, parsingInfo, scriptInfo) || // &"str"
SignedNumber.Check(parentInfo, parsingInfo, scriptInfo) || // 56 | -56 | +56
Vector.Check(parentInfo, parsingInfo, scriptInfo) || // (0,1,2) | (0,1,2)[]
SubExpression.Check(parentInfo, parsingInfo, scriptInfo) || // (exp) | (exp).member* | (exp)[]*
Literal.Check(parentInfo, parsingInfo, scriptInfo) || // true | false | undefined
FuncCallModifier.Check(parentInfo, parsingInfo, scriptInfo) || // thread
DelegateCall.Check(parentInfo, parsingInfo, scriptInfo) || // // [[delegate]](funcArgs) | [[d]]().member* | [[d]]()[]*
FuncCall.Check(parentInfo, parsingInfo, scriptInfo) || // f() | path::f() | f().member* | f()[i]*
DelegateDef.Check(parentInfo, parsingInfo, scriptInfo) || // ::func | path::func
VarName.Check(parentInfo, parsingInfo, scriptInfo) // var | var.member* | var[i]*
)
{
isSingleOperand = IsSingle(parentInfo, parsingInfo);
return(true);
}
return(false);
}
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);
}
}
}