fix(ivy): unify checkNoChanges logic with the view engine (#28366)

This commit unifies handling of the "check no changes" mode between
ngIvy and the view engine. More specifically:
- check no changes can be invoked before change detection in ivy;
- `undefined` values are considered equal `NO_CHANGES` for the "check no changes"
mode purposes.

Chanes in this commit enables several tests that were previously running only in ivy
or only in the view engine.

PR Close #28366
This commit is contained in:
Pawel Kozlowski
2019-01-25 15:36:46 +01:00
committed by Jason Aden
parent 3d5a919ac5
commit 99886bd159
3 changed files with 59 additions and 61 deletions

View File

@ -7,11 +7,10 @@
*/
import {devModeEqual} from '../change_detection/change_detection_util';
import {assertDataInRange, assertLessThan, assertNotEqual} from '../util/assert';
import {throwErrorIfNoChangesMode} from './errors';
import {BINDING_INDEX, LView} from './interfaces/view';
import {getCheckNoChangesMode, isCreationMode} from './state';
import {LView} from './interfaces/view';
import {getCheckNoChangesMode} from './state';
import {NO_CHANGE} from './tokens';
import {isDifferent} from './util';
@ -38,20 +37,21 @@ export function bindingUpdated(lView: LView, bindingIndex: number, value: any):
ngDevMode &&
assertLessThan(bindingIndex, lView.length, `Slot should have been initialized to NO_CHANGE`);
if (lView[bindingIndex] === NO_CHANGE) {
// initial pass
lView[bindingIndex] = value;
} else if (isDifferent(lView[bindingIndex], value)) {
const oldValue = lView[bindingIndex];
if (isDifferent(oldValue, value)) {
if (ngDevMode && getCheckNoChangesMode()) {
if (!devModeEqual(lView[bindingIndex], value)) {
throwErrorIfNoChangesMode(isCreationMode(lView), lView[bindingIndex], value);
// View engine didn't report undefined values as changed on the first checkNoChanges pass
// (before the change detection was run).
const oldValueToCompare = oldValue !== NO_CHANGE ? oldValue : undefined;
if (!devModeEqual(oldValueToCompare, value)) {
throwErrorIfNoChangesMode(oldValue === NO_CHANGE, oldValueToCompare, value);
}
}
lView[bindingIndex] = value;
} else {
return false;
return true;
}
return true;
return false;
}
/** Updates 2 bindings if changed, then returns whether either was updated. */

View File

@ -9,7 +9,7 @@
import {assertDataInRange, assertDefined, assertGreaterThan, assertLessThan} from '../util/assert';
import {global} from '../util/global';
import {ACTIVE_INDEX, LCONTAINER_LENGTH, LContainer} from './interfaces/container';
import {LCONTAINER_LENGTH, LContainer} from './interfaces/container';
import {LContext, MONKEY_PATCH_KEY_NAME} from './interfaces/context';
import {ComponentDef, DirectiveDef} from './interfaces/definition';
import {NO_PARENT_INJECTOR, RelativeInjectorLocation, RelativeInjectorLocationFlags} from './interfaces/injector';