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[FIX] component: solve tricky concurrency issue

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In some specific situation, a component could crash, because it was
destroyed before being mounted, but reused anyway for another rendering.
This commit is contained in:
Géry Debongnie
2019-09-01 21:24:54 +02:00
parent f9861040c8
commit 4cd08d25c8
6 changed files with 84 additions and 40 deletions
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tests/component/__snapshots__/props_validation.test.ts.snap
+1 -1
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@@ -36,7 +36,7 @@ exports[`props validation props are validated in dev mode (code snapshot) 1`] =
w4 = new W4(parent, props4);
parent.__owl__.cmap[4] = w4.__owl__.id;
def3 = w4.__prepare();
def3 = def3.then(vnode=>{let pvnode=h(vnode.sel, {key: 4, hook: {insert(vn) {let nvn=w4.__mount(vnode, pvnode.elm);pvnode.elm=nvn.elm;},remove() {},destroy(vn) {w4.destroy();}}});c1[_2_index]=pvnode;w4.__owl__.pvnode = pvnode;});
def3 = def3.then(vnode=>{if (w4.__owl__.isDestroyed){return}let pvnode=h(vnode.sel, {key: 4, hook: {insert(vn) {let nvn=w4.__mount(vnode, pvnode.elm);pvnode.elm=nvn.elm;},remove() {},destroy(vn) {w4.destroy();}}});c1[_2_index]=pvnode;w4.__owl__.pvnode = pvnode;});
} else {
utils.validateProps(w4.constructor, props4)
def3 = def3 || w4.__updateProps(props4, extra.forceUpdate, extra.patchQueue);