private Assignment TryParseAssignment(string name)
{
DerefVariable derefVar = TryParseDerefVariable(name);
if (derefVar is null)
{
return(null);
}
IOperator assignmentOperator = TryParseOperator() ?? throw new UnexpectedToken(_scanner.CurrentToken.Position);
if (!(assignmentOperator is AssignmentOperator))
{
throw new UnexpectedToken(_scanner.CurrentToken.Position);
}
_scanner.Next();
Expression expression = TryParseExpression() ?? throw new UnexpectedToken(_scanner.CurrentToken.Position);
return(new Assignment(derefVar, assignmentOperator as AssignmentOperator, expression));
}
public Assignment(DerefVariable variable, AssignmentOperator assignmentOperator, Expression expression)
{
this.derefVariable = variable;
this.assignmentOperator = assignmentOperator;
this.expression = expression;
}
