[flexcoders] FLEX BUG: Nested switch case statements fail to compile correctly
I have found that code containing nested switch/case statements fail
to work correctly even though they compile without errors.
I'm including two different versions of the same code, one using
switch/case statements, the other using if/else statements.
The switch/case version won't allow me to set breakpoints or examine
variables in the code following the switch/case statements, although I
can single-step through each line of the code during debugging.
The if/else version works as expected.
* SWITCH/CASE VERSION *
private function clickHandler(clickEvent:ItemClickEvent):void {
switch (clickEvent.index)
{
case VIEW_PREVIOUS: // Previous
{
switch (ecModel.viewingMode)
{
case (EventCalendarModel.VIEWING_MODE_DAYS):
ecModel.addDaysToSelectedTime(-1);
break;
case (EventCalendarModel.VIEWING_MODE_WEEKS):
ecModel.addWeeksToSelectedTime(-1);
break;
case (EventCalendarModel.VIEWING_MODE_MONTHS):
ecModel.addMonthsToSelectedTime(-1);
break;
}
}
break;
case VIEW_DATESELECTOR: // Select date
break;
case VIEW_NEXT: // Next
switch (ecModel.viewingMode)
{
case (EventCalendarModel.VIEWING_MODE_DAYS):
ecModel.addDaysToSelectedTime(1);
break;
case (EventCalendarModel.VIEWING_MODE_WEEKS):
ecModel.addWeeksToSelectedTime(1);
break;
case (EventCalendarModel.VIEWING_MODE_MONTHS):
ecModel.addMonthsToSelectedTime(1);
break;
}
break;
}
// Explicitly generate a PropertyChangeEvent so binding will work as
expected
if (ecPreviousDate.getTime() != ecModel.selectedTime.getTime())
{
var pcEvent:PropertyChangeEvent = new
PropertyChangeEvent(PropertyChangeEvent.PROPERTY_CHANGE);
pcEvent.kind = "update";
pcEvent.property = "selectedTime";
pcEvent.oldValue = ecPreviousDate.getTime();
pcEvent.newValue = ecModel.selectedTime.getTime();
pcEvent.source = ecModel;
dispatchEvent(pcEvent);
}
}
}
* IF/ELSE VERSION *
private function clickHandler(clickEvent:ItemClickEvent):void {
var ecPreviousDate:Date = new Date(ecModel.selectedTime);
if (clickEvent.index == VIEW_PREVIOUS) // Previous button clicked
{
if (ecModel.viewingMode == EventCalendarModel.VIEWING_MODE_DAYS)
{ // Previous Day
ecModel.addDaysToSelectedTime(-1);
}
else if (ecModel.viewingMode ==
EventCalendarModel.VIEWING_MODE_WEEKS)
{ // Previous Week
ecModel.addWeeksToSelectedTime(-1);
}
else if (ecModel.viewingMode ==
EventCalendarModel.VIEWING_MODE_MONTHS)
{ // Previous Month
ecModel.addMonthsToSelectedTime(-1);
}
}
else if (clickEvent.index == VIEW_NEXT) // Next button clicked
{
if (ecModel.viewingMode == EventCalendarModel.VIEWING_MODE_DAYS)
{
ecModel.addDaysToSelectedTime(1);
}
else if (ecModel.viewingMode ==
EventCalendarModel.VIEWING_MODE_WEEKS)
{
ecModel.addWeeksToSelectedTime(1);
}
else if (ecModel.viewingMode ==
EventCalendarModel.VIEWING_MODE_MONTHS)
{
ecModel.addMonthsToSelectedTime(1);
}
}
// Explicitly generate a PropertyChangeEvent so binding will work as
expected
if (ecPreviousDate.getTime() != ecModel.selectedTime.get
Re: [flexcoders] FLEX BUG: Nested switch case statements fail to compile correctly
Hello,
the problem might be caused by the { and } you place around you switch statements. The following code works just fine.
Greetz Erik
public function testAS() { var x1:Object = {type: "x", data: {a: 1}}; var x2:Object = {type: "x", data: {a: 2}}; var y1:Object = {type: "y", data: {a: 3}}; var y2:Object = {type: "y", data: {a: 4}};
check(x1); check(x2); check(y1); check(y2); };private function check(o:Object):void { switch (o.type) { case "x": switch (o.data.a
) {case 1: trace("1 X"); break;case 2: trace("2 X"); break; }; break; case "y":
switch (o.data.a) { case 3: trace("3 Y"); break;case 4: trace("4 Y"); break; }; break;
}; };
output:
1 X
2 X
3 Y
4 Y
__._,_.___
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RE: [flexcoders] FLEX BUG: Nested switch case statements fail to compile correctly
Turns out this is a Player bug. An
engineer investigated and filed it. Some notes:
In this case, it turns out the bug is in
the player, not the compiler. It's actually even worse than he says: you
can have a single switch statement, not a nested one, and still reproduce the
problem.
The workarounds are the ones he already
discovered: either to set a breakpoint earlier in the function and then step
until you get to the code you want to examine, or else don't use if/then
instead of a switch statement.
So we’ll see what we can do but you
know what you can do in the meantime.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of EECOLOR
Sent: Tuesday, October 10, 2006
1:47 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] FLEX
BUG: Nested switch case statements fail to compile correctly
Hello,
the problem might be caused by the { and } you place around you switch
statements. The following code works just fine.
Greetz Erik
public function testAS()
{
var x1:Object = {type: "x", data: {a: 1}};
var x2:Object = {type: "x", data: {a: 2}};
var y1:Object = {type: "y", data: {a: 3}};
var y2:Object = {type: "y", data: {a: 4}};
check(x1);
check(x2);
check(y1);
check(y2);
};
private function check(o:Object):void
{
switch (o.type)
{
case "x":
switch (o.data.a )
{
case 1:
trace("1
X");
break;
case 2:
trace("2
X");
break;
};
break;
case "y":
switch (o.data.a)
{
case 3:
trace("3 Y");
break;
case 4:
trace("4
Y");
break;
};
break;
};
};
output:
1 X
2 X
3 Y
4 Y
__._,_.___
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