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Fix/repeat one time #357

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Fix/repeat one time #357

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rluba
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@rluba rluba commented Jul 13, 2018

This is a crude attempt at fixing #356.

The fix for the if case was relatively straight-forward. But to disable the fast-pass for the "subview without lifecycle methods" case, I had to rely on instruction.initiatedByBehavior, because I couldn't find a better indicator.

I just started working with Aurelia a few weeks ago, so I’m sure there’s a more elegant way that I couldn’t discover. Let me know what you think!

@bigopon
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bigopon commented Aug 21, 2018

@rluba @EisenbergEffect

I think all the changes are good except using initiatedByBehavior. By default checking that will also make it false positive for any custom element / custom attribute that doesn't actually require lifecycle. I think we have to introduce new property on If metadata via:

const meta = metada.get(metdata.resource, If);
meta.behaviorRequiresLifecycle = true;

and check:

function behaviorRequiresLifecycle(instruction) {
  let t = instruction.type;
  let name = t.elementName !== null ? t.elementName : t.attributeName;
  return lifecycleOptionalBehaviors.indexOf(name) === -1 && (t.handlesAttached || t.handlesBind || t.handlesCreated || t.handlesDetached || t.handlesUnbind)
    || t.viewFactory && viewsRequireLifecycle(t.viewFactory)
    || instruction.viewFactory && viewsRequireLifecycle(instruction.viewFactory)
    || instruction.type.behaviorRequiresLifecycle;
}

Note: naming is for discussion.

@@ -9,7 +9,8 @@ function behaviorRequiresLifecycle(instruction) {
let name = t.elementName !== null ? t.elementName : t.attributeName;
return lifecycleOptionalBehaviors.indexOf(name) === -1 && (t.handlesAttached || t.handlesBind || t.handlesCreated || t.handlesDetached || t.handlesUnbind)
|| t.viewFactory && viewsRequireLifecycle(t.viewFactory)
|| instruction.viewFactory && viewsRequireLifecycle(instruction.viewFactory);
|| instruction.viewFactory && viewsRequireLifecycle(instruction.viewFactory)
|| instruction.initiatedByBehavior;
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@bigopon bigopon Aug 21, 2018

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We can not do this, as it includes all custom elements, and custom attributes, thus could possibly make it a breaking change.

@rluba rluba force-pushed the fix/repeat_oneTime branch from db1cdc4 to cd3e953 Compare March 18, 2020 15:14
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2 participants