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<script>
class CEBase extends HTMLElement {
static formAssociated = true;
constructor() {
super();
this.internals = this.attachInternals();
this.state_ = undefined;
}
formStateRestoreCallback(state, reason) {
if (reason == "restore") {
this.state_ = state;
}
}
set(state, value) {
this.state_ = state;
this.value_ = value;
this.internals.setFormValue(value, state);
}
get state() {
return this.state_;
}
get value() {
return this.value_;
}
}
customElements.define("c-e", class extends CEBase {});
</script>
<form>
<c-e id="custom0"></c-e>
<c-e id="custom1"></c-e>
<c-e id="custom2"></c-e>
<c-e id="custom3"></c-e>
<c-e id="custom4"></c-e>
<upgraded-ce id="upgraded0"></upgraded-ce>
<upgraded-ce id="upgraded1"></upgraded-ce>
<upgraded-ce id="upgraded2"></upgraded-ce>
<upgraded-ce id="upgraded3"></upgraded-ce>
<upgraded-ce id="upgraded4"></upgraded-ce>
</form>
<script>
customElements.define("upgraded-ce", class extends CEBase {});
</script>