tracker issue | What iT iS dESign studios

Title:

Error when using ternary conditional operator inside of <cfdocumentsection>

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Status/Resolution/Reason: Closed/Fixed/Fixed

Reporter/Name(from Bugbase): Jonathan C. / ()

Created: 01/30/2019

Components: Language

Versions: 2018

Failure Type: Non Functioning

Found In Build/Fixed In Build: 2018.0.2-beta.2 / CF 2018 U5

Priority/Frequency: Critical / All users will encounter

Locale/System: ALL / Linux

Vote Count: 3

Problem Description:

A low-level error is thrown when using a terniary conditional inside of a <cfdocumentsection> tag.

Steps to Reproduce:
{code:java}
<cfdocument format="PDF">
    <h1>Hello World</h1>
    <cfdocumentsection>
        <h2>Hello Section</h2>
        <cfdocumentsection marginBottom="#arrayContains( [ 'pdf' ], 'pdf' ) ? 1.6 : 1#">
            <h2>Hello Sub-Section</h2>
         </cfdocumentsection>
</cfdocumentsection>
</cfdocument>
{code}


Actual Result:

An low-level 500 error is generated by the compiler:

```
(class: cfreport2ecfm1389601345, method: _factor7 signature: (Ljavax/servlet/jsp/tagext/Tag;Ljavax/servlet/jsp/JspWriter;)Ljava/lang/Object;) Expecting to find double on stack
```

Expected Result:

A PDF is generated and rendered

Any Workarounds:

Attachments:

Comments:

A workaround is to use a <cfif> block to set the variable and then pass it in to the document section attribute

Comment by Jonathan C.

30159 | January 30, 2019 12:58:32 AM GMT

Hi Adobe,

The issue is much bigger. Here is a repro:

<cfscript>
  foo = true;
  bar = foo ? 1.2 : 2;//HTTP Error 500.0 - (class: cfmypage2ecfm1301256636, method: runPage signature: ()Ljava/lang/Object;) Unable to pop operand off an empty stack
  writeOutput(bar);
</cfscript>

What!?

Verified in CF2018 Final (build 2018.0.0.310739) on Windows 10 w/ IIS.

Thanks!,
-Aaron

Comment by Aaron N.

30167 | February 01, 2019 10:21:34 AM GMT

+1 - Filed as CF-4203999

Vote by Aaron N.

30177 | February 02, 2019 04:46:08 AM GMT

Code to repro :
{code:java}
<cfset mystruct.test=true>
<cfset a=mystruct.test ? 1.6 : 1>
<cfoutput>#a#</cfoutput>
This throws exception.
The following code throws exception:
<cfset mystruct.test=true> 
<cfset a=mystruct.test ? "1.6" : 1> 
<cfoutput>#a#</cfoutput>
{code}
 

Comment by Suchika S.

30230 | February 11, 2019 07:30:23 AM GMT

Hi Adobe,

I see you've marked this ToFix. However, CF-4203999 is a more complete description of the issue.

Thanks!,
-Aaron

Comment by Aaron N.

30222 | February 11, 2019 08:17:29 AM GMT

Hi Suchika,

Thank you very much for working on this issue. At the moment when I added my previous comment, I did not notice your comment for some reason. But, of course that is okay - I see you know very clearly what the issue is :) Also, I added a comment on CF-4203999 regarding the ticket's title (for the upcoming "Issues Fixed" list). I hope Adobe chooses a title which better summarizes the issue, since the issue is not specific to cfdocumentsection.

Thanks!,
-Aaron

Comment by Aaron N.

30231 | February 12, 2019 09:42:17 AM GMT

This issue is HUGE.  It breaks ternary operators for all double data types.  Here is the easiest reproduction:

<cfset x = (true ? 0.0 : 0.0)>

This will cause the following error:

 	(class: cftest2ecfm1733740874, method: runPage signature: ()Ljava/lang/Object;) Unable to pop operand off an empty stack

Vote by Roland C.

30755 | May 16, 2019 07:09:15 PM GMT

This issue is HUGE. It breaks ternary operators for all double data types.

Here is the easiest reproduction:

1. Create a file named test.cfm
2. Paste this single line of code in it:
     <cfset x = (true ? 0.0 : 0.0)>
3. Execute test.cfm

This will cause the following error: (class: cftest2ecfm1733740874, method: runPage signature: ()Ljava/lang/Object;) Unable to pop operand off an empty stack.

I'm flummoxed as to how this issue isn't being reported more broadly.  Literally any usage of a Double data type in a ternary operation breaks.

Comment by Roland C.

30754 | May 16, 2019 07:13:46 PM GMT

This is still unfixed 8 months later!  A language primitive is broken, and nothing is being done about it.  This product team is absurd with its priorities.

Comment by Roland C.

31278 | September 04, 2019 02:44:44 PM GMT

This bug is fixed in the latest update of ColdFusion 2018 i.e ColdFusion 2018 Update 5.

Comment by Suchika S.

31392 | September 25, 2019 08:27:45 PM GMT

tracker issue : CF-4203996

Error when using ternary conditional operator inside of <cfdocumentsection>