1099 2005-02-07 19:08:12 +0000 Specify that the evaluation of the guard expression is done in a fixed order 2005-09-28 21:44:13 +0000 1 1 1 Unclassified WS Choreography Last Call Comment: Confirmed Closed unspecified PC Linux CLOSED FIXED http://lists.w3.org/Archives/Public/public-ws-chor-comments/2005Feb/att-0000/comment.txt P2 normal -- 999 1 gritzinger martin.chapman martin.chapman oldest_to_newest 4259 0 gritzinger 2005-02-07 19:08:12 +0000 *2.4.6. Overall on workunits (1). To have a clear semantics of guards, it is better to specify that the evaluation of the guard expression is done in a fixed order (may be better to specify this explicitly in the CDL-function section or in an "expression" section). Reasons: If not, prediction of behaviours become hard; flow check becomes hard; can lead to livelock/deadlock easily. 4053 1 martin.chapman 2005-02-15 20:44:17 +0000 agreed on con call 15-feb-05: needs discussion, reklated to tony's short circuit evalution issue 4019 2 martin.chapman 2005-03-08 10:41:06 +0000 Discussed at feb-mar 05 f2f: http://lists.w3.org/Archives/Member/member-ws-chor/2005Mar/att- 0001/Ws_Chor_f2f__Feb-Mar_2005_-0.txt Use Xpath rules of left to right evaluation. 4027 3 martin.chapman 2005-03-08 11:02:36 +0000 add note to spec to say use xpath evaluation ordering 3441 4 martin.chapman 2005-05-10 16:44:46 +0000 Kohei has been informed of the group's decision [1] and we are awaiting confirmation. Category changed to LCC: Closed. [1] http://lists.w3.org/Archives/Public/public-ws-chor- comments/2005May/0017.html 3318 5 martin.chapman 2005-05-13 09:20:02 +0000 Resonse from Kohei: http://lists.w3.org/Archives/Public/public-ws-chor-comments/2005May/0027.html Hi Martin, My apologies for a late reply. As far as XPath decides a unique evaluation order, as it currently does, this is acceptable. I hope we can make it doubly clear by adding: By this we guarantee a unique order in the way expressions are evaluated, i.e. from the left to the right. This is just to make clear what is the intended behaviour. Best wishes, kohei EDITORS PLEASE CONFIRM. 2945 6 gritzinger 2005-05-27 13:50:23 +0000 Refer to changes made for issue 999 which cover this issue as well. 6561 7 martin.chapman 2005-09-28 21:44:13 +0000 the text is in the spec do close confirm.