1 name = "up";

     2 

     3 group = "stack";

     4 

     5 shortDescription = "Select and print the stack frame above the current one";

     6 

     7 longDescription = "";

     8 

     9 seeAlso = [ "down", "frame" ];

    10 

    11 function execute() {

    12     scheduleGetContextCount();

    13     state = 1;

    14 }

    15 

    16 function handleResponse(resp) {

    17     if (state == 1) {

    18         var count = resp.result;

    19         var idx = getCurrentFrameIndex() + 1;

    20         if (idx == count) {

    21             warning("Already at top (outermost) frame.");

    22             return;

    23         }

    24         setCurrentFrameIndex(idx);

    25         scheduleGetContextInfo(idx);

    26         state = 2;

    27     } else if (state == 2) {

    28         var info = resp.result;

    29         setCurrentScriptId(info.scriptId);

    30         setCurrentLineNumber(info.lineNumber);

    31         scheduleGetBacktrace();

    32         state = 3;

    33     } else if (state == 3) {

    34         var backtrace = resp.result;

    35         message("#" + getCurrentFrameIndex() + "  " + backtrace[getCurrentFrameIndex()]);

    36     }

    37 }