503905c807
Provides a runtime and compile time switch for ivy including `ApplicationRef.bootstrapModule`. This is done by naming the symbols such that `ngcc` (angular Compatibility compiler) can rename symbols in such a way that running `ngcc` command will switch the `@angular/core` module from `legacy` to `ivy` mode. This is done as follows: ``` const someToken__PRE_NGCC__ = ‘legacy mode’; const someToken__POST_NGCC__ = ‘ivy mode’; export someSymbol = someToken__PRE_NGCC__; ``` The `ngcc` will search for any token which ends with `__PRE_NGCC__` and replace it with `__POST_NGCC__`. This allows the `@angular/core` package to be rewritten to ivy mode post `ngcc` execution. PR Close #25238
46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* This file is used to control if the default rendering pipeline should be `ViewEngine` or `Ivy`.
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*
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* For more information on how to run and debug tests with either Ivy or View Engine (legacy),
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* please see [BAZEL.md](./docs/BAZEL.md).
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*/
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let _devMode: boolean = true;
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let _runModeLocked: boolean = false;
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/**
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* Returns whether Angular is in development mode. After called once,
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* the value is locked and won't change any more.
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*
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* By default, this is true, unless a user calls `enableProdMode` before calling this.
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*
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* @experimental APIs related to application bootstrap are currently under review.
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*/
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export function isDevMode(): boolean {
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_runModeLocked = true;
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return _devMode;
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}
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/**
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* Disable Angular's development mode, which turns off assertions and other
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* checks within the framework.
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*
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* One important assertion this disables verifies that a change detection pass
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* does not result in additional changes to any bindings (also known as
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* unidirectional data flow).
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*/
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export function enableProdMode(): void {
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if (_runModeLocked) {
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throw new Error('Cannot enable prod mode after platform setup.');
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}
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_devMode = false;
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} |