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Fix crash when accessing variables in filters that don't have a widget context

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This should catch a large number of crashes, including:

Fixes #5716
This commit is contained in:
jeremy@jermolene.com 2021-05-22 20:00:24 +01:00
parent 3fc7895af2
commit 485779f5b2
1 changed files with 3 additions and 0 deletions
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3
core/modules/filters.js
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@ -323,6 +323,9 @@ exports.compileFilter = function(filterString) {
} else if(typeof source === "object") { // Array or hashmap } else if(typeof source === "object") { // Array or hashmap
source = self.makeTiddlerIterator(source); source = self.makeTiddlerIterator(source);
} }
if(!widget) {
widget = $tw.rootWidget;
}
var results = new $tw.utils.LinkedList(); var results = new $tw.utils.LinkedList();
$tw.utils.each(operationFunctions,function(operationFunction) { $tw.utils.each(operationFunctions,function(operationFunction) {
operationFunction(results,source,widget); operationFunction(results,source,widget);