| Ticket UUID: | 1532791 | |||
| Title: | snit2, snit::widget problem | |||
| Type: | Bug | Version: | None | |
| Submitter: | andreas_kupries | Created on: | 2006-08-01 22:40:52 | |
| Subsystem: | snit | Assigned To: | duquette | |
| Priority: | 5 Medium | Severity: | ||
| Status: | Closed | Last Modified: | 2006-08-16 09:05:36 | |
| Resolution: | Fixed | Closed By: | duquette | |
| Closed on: | 2006-08-16 02:05:36 | |||
| Description: |
When using 'variable' to define components snit 2.0 has a problem if the component has delegates set on it, and the delegates are defined before the component. When trying to create an instance snit crashes with the attached stacktrace. The reason is that the 'variable' statement coming after the delegation cause snit to insert assignments to the relevant instance variables, after the delegates have set up traces. The trace is triggered, and comes ultimatively to RT.ClearInstanceCaches, which accesses the internal Snit_instance variable. At a time when this variable is not defined yet. This happens a few lines later, via installhull. The relevant lines in snit2.tcl are 1906, which runs the assignments triggering the trace accessing the variable, and 1922, where the variable is defined. Workarounds for this problem are to either move the 'variable' declarations before the delegation setup, or to use the 'component' command. The latter apparently has additional intelligence about delegation which prevents it from inserting the additional assignments into the generated Snit_instanceVars hook procedure. | |||
| User Comments: |
duquette added on 2006-08-16 09:05:36:
Logged In: YES user_id=372859 This has been fixed, and test "bug-3.1" has been added to the Snit test suite to cover the error condition. andreas_kupries added on 2006-08-02 05:40:53: File Added - 187209: snit_bug.txt | |||
Attachments:
- snit_bug.txt [download] added by andreas_kupries on 2006-08-02 05:40:52. [details]