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feat(core): add binding name to content changed error (#20352)

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Adding the binding name to the error message recieved by the user gives
extra context on what exactly changed. The tests are also updated to
reflect the new error message.

PR Close #20352
This commit is contained in:
Xander Garbett
2017-11-11 08:40:17 +00:00
committed by Alex Eagle
parent 7e3f9a482a
commit d3bf54bdeb
3 changed files with 5 additions and 4 deletions
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5
packages/core/src/view/util.ts
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@ -98,9 +98,10 @@ export function checkBindingNoChanges(
view: ViewData, def: NodeDef, bindingIdx: number, value: any) {
const oldValue = view.oldValues[def.bindingIndex + bindingIdx];
if ((view.state & ViewState.BeforeFirstCheck) || !devModeEqual(oldValue, value)) {
const bindingName = def.bindings[def.bindingIndex].name;
throw expressionChangedAfterItHasBeenCheckedError(
Services.createDebugContext(view, def.nodeIndex), oldValue, value,
(view.state & ViewState.BeforeFirstCheck) !== 0);
Services.createDebugContext(view, def.nodeIndex), `${bindingName}: ${oldValue}`,
`${bindingName}: ${value}`, (view.state & ViewState.BeforeFirstCheck) !== 0);
}
}