[BUGFIX] Asserts when users attempt to set a shadowed value with Ember.set #19198
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pzuraq
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rwjblue
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Oct 15, 2020
| `Attempted to set \`${toString( | ||
| obj | ||
| )}.${keyName}\` using Ember.set(), but the property was a computed or tracked property that was shadowed by another property declaration. This can happen if you defined a tracked or computed property on a parent class, and then redefined it on a subclass.`, | ||
| name && (name.indexOf('CPSETTER_FUNCTION') !== -1 || name.indexOf('TRACKED_SETTER') !== -1) |
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Instead of indexing the name can we keep the weakset system (for debug only)?
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we can, it's just more of a pain to maintain. FWIW, this is what we did before we actually needed to rely on the behavior in prod
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also FWIW what we do for CPGETTER_FUNCTION: https://github.com/emberjs/ember.js/blob/bugfix/assert-when-setting-shadowed-property/packages/@ember/-internals/metal/lib/decorator.ts#L103
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@rwjblue the issue with local assignment is there's no way for us to intercept that, it's actually impossible to do unfortunately. |
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Prevents users from setting a value if it's been shadowed, which can cause inconsistencies in behavior.