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Handle a frozen dataset.data array. #6060

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merged 6 commits into from Feb 11, 2019
Merged

Handle a frozen dataset.data array. #6060

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0f297ad
Handle a frozen `dataset.data` array.
etimberg Feb 10, 2019
47c56fc
Remove the documentation change
etimberg Feb 10, 2019
e9bd480
Update the test to include destroying the chart
etimberg Feb 10, 2019
cadd326
Handle sealed objects & test more cases
etimberg Feb 10, 2019
14c18ef
Update tests and fix lint issues
etimberg Feb 11, 2019
dd980a8
Check that the test setup is correct
etimberg Feb 11, 2019
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4 changes: 3 additions & 1 deletion src/core/core.datasetController.js
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Expand Up @@ -225,7 +225,9 @@ helpers.extend(DatasetController.prototype, {
unlistenArrayEvents(me._data, me);
}

listenArrayEvents(data, me);
if (data && !Object.isFrozen(data)) {
listenArrayEvents(data, me);
}
me._data = data;
}

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19 changes: 19 additions & 0 deletions test/specs/core.datasetController.tests.js
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Expand Up @@ -38,6 +38,25 @@ describe('Chart.DatasetController', function() {
});
});

it('should handle a frozen data object', function() {
function createChart() {
var data = Object.freeze([0, 1, 2, 3, 4, 5]);
var chart = acquireChart({
type: 'line',
data: {
datasets: [{
data: data
}]
}
});

// Tests that the unlisten path also works for frozen objects
chart.destroy();
}

expect(createChart).not.toThrow();
});

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it('should synchronize metadata when data are inserted or removed', function() {
var data = [0, 1, 2, 3, 4, 5];
var chart = acquireChart({
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