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Present-to-absent check is necessary in assertion removal handler

This commit is contained in:
Tony Garnock-Jones 2018-10-21 13:32:06 +01:00
parent c26186f871
commit 2a806da35c
1 changed files with 8 additions and 5 deletions
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13
src/skeleton.js
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@ -204,11 +204,14 @@ function add_to_handler(h, vs) {
function del_from_cont(c, v) { c.cachedAssertions = c.cachedAssertions.remove(v); }
function del_from_leaf(l, v) { l.cachedAssertions = l.cachedAssertions.remove(v); }
function del_from_handler(h, vs) {
h.cachedCaptures = Bag.change(h.cachedCaptures, vs, -1).bag;
h.callbacks.forEach((cb) => {
cb(EVENT_REMOVED, vs);
return true;
});
let net;
({bag: h.cachedCaptures, net: net} = Bag.change(h.cachedCaptures, vs, -1));
if (net === Bag.PRESENT_TO_ABSENT) {
h.callbacks.forEach((cb) => {
cb(EVENT_REMOVED, vs);
return true;
});
}
}
Index.prototype.adjustAssertion = function(outerValue, delta) {