[Laszlo-dev] For Review: Change 20071029-dda-s Summary: support try/catch/finally and throw statements in SWF7/8

[Donald Anderson]

[Sorry about the resend- no changes, I just I had Max's email wrong]

Change 20071029-dda-s by dda at freddie.local on 2007-10-29 22:24:27 EDT
     in /Users/dda/laszlo/src/svn/openlaszlo/trunk
     for http://svn.openlaszlo.org/openlaszlo/trunk

Summary: support try/catch/finally and throw statements in SWF7/8

New Features: try/catch/finally supported in SWF7/8.

Bugs Fixed:  LPP-1539

Technical Reviewer: ptw
QA Reviewer: maxcarlson
Doc Reviewer: (pending)

Documentation:

Release Notes:
     try, catch, finally, throw statements are now supported in  
SWF7/8 as well as DHTML
     runtimes.

Details:
     try/catch/finally are very helpful in creating a reliable software.
     It should help in consolidating/maintaining code in the runtime  
kernel,
     since DHTML already supports try/catch and we won't need to have
     alternate implementations of error handling code.

Tests:
     created some simple tests using try/catch/finally,
     also try/catch (no finally).  Had some problems with
     my try/finally (no catch) example.
     The only way I've found to trigger an exception
     in SWF7/8 is to use an explicit throw statement,
     since the SWF instruction set seems to continue to operate
     with various kinds of errors.

Files:
M      WEB-INF/lps/server/src/org/openlaszlo/sc/Actions.java
M      WEB-INF/lps/server/src/org/openlaszlo/sc/Instructions.java
M      WEB-INF/lps/server/src/org/openlaszlo/sc/Assembler.java
M      WEB-INF/lps/server/src/org/openlaszlo/sc/ 
InstructionCollector.java
M      WEB-INF/lps/server/src/org/openlaszlo/sc/CodeGenerator.java

Changeset: http://svn.openlaszlo.org/openlaszlo/patches/20071029-dda- 
s.tar



--

Don Anderson
Java/C/C++, Berkeley DB, systems consultant

Voice:  617-547-7881
Email:  dda at ddanderson.com
WWW:    http://www.ddanderson.com