show errors while mounting list view children
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762ed96a3b
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2 changed files with 11 additions and 3 deletions
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@ -15,6 +15,7 @@ limitations under the License.
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*/
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import {tag} from "./html.js";
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import {errorToDOM} from "./error.js";
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function insertAt(parentNode, idx, childNode) {
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const isLast = idx === parentNode.childElementCount;
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@ -106,8 +107,12 @@ export class ListView {
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for (let item of this._list) {
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const child = this._childCreator(item);
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this._childInstances.push(child);
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const childDomNode = child.mount(this._mountArgs);
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fragment.appendChild(childDomNode);
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try {
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const childDomNode = child.mount(this._mountArgs);
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fragment.appendChild(childDomNode);
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} catch (err) {
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fragment.appendChild(errorToDOM(err));
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}
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}
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this._root.appendChild(fragment);
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}
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@ -18,7 +18,10 @@ import {tag} from "./html.js";
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export function errorToDOM(error) {
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const stack = new Error().stack;
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const callee = stack.split("\n")[1];
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let callee = null;
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if (stack) {
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callee = stack.split("\n")[1];
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}
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return tag.div([
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tag.h2("Something went wrong…"),
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tag.h3(error.message),
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