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feat(ivy): add ngcc ivy switch (#25238)

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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
This commit is contained in:
Misko Hevery
2018-07-30 22:34:15 -07:00
committed by Jason Aden
parent cc55d609ce
commit 503905c807
23 changed files with 298 additions and 201 deletions
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66
packages/core/src/application_ref.ts
View File

@ -9,59 +9,50 @@
import {Observable, Observer, Subscription, merge} from 'rxjs';
import {share} from 'rxjs/operators';
import {ErrorHandler} from '../src/error_handler';
import {scheduleMicroTask, stringify} from '../src/util';
import {isPromise} from '../src/util/lang';
import {ApplicationInitStatus} from './application_init';
import {APP_BOOTSTRAP_LISTENER, PLATFORM_INITIALIZER} from './application_tokens';
import {Console} from './console';
import {Injectable, InjectionToken, Injector, StaticProvider} from './di';
import {ErrorHandler} from './error_handler';
import {isDevMode} from './is_dev_mode';
import {CompilerFactory, CompilerOptions} from './linker/compiler';
import {ComponentFactory, ComponentRef} from './linker/component_factory';
import {ComponentFactoryBoundToModule, ComponentFactoryResolver} from './linker/component_factory_resolver';
import {InternalNgModuleRef, NgModuleFactory, NgModuleRef} from './linker/ng_module_factory';
import {InternalViewRef, ViewRef} from './linker/view_ref';
import {WtfScopeFn, wtfCreateScope, wtfLeave} from './profile/profile';
import {assertNgModuleType} from './render3/assert';
import {NgModuleFactory as R3NgModuleFactory} from './render3/ng_module_ref';
import {Testability, TestabilityRegistry} from './testability/testability';
import {Type} from './type';
import {scheduleMicroTask, stringify} from './util';
import {isPromise} from './util/lang';
import {NgZone, NoopNgZone} from './zone/ng_zone';
let _devMode: boolean = true;
let _runModeLocked: boolean = false;
let _platform: PlatformRef;
let compileNgModuleFactory:
<M>(injector: Injector, options: CompilerOptions, moduleType: Type<M>) =>
Promise<NgModuleFactory<M>> = compileNgModuleFactory__PRE_NGCC__;
function compileNgModuleFactory__PRE_NGCC__<M>(
injector: Injector, options: CompilerOptions,
moduleType: Type<M>): Promise<NgModuleFactory<M>> {
const compilerFactory: CompilerFactory = injector.get(CompilerFactory);
const compiler = compilerFactory.createCompiler([options]);
return compiler.compileModuleAsync(moduleType);
}
function compileNgModuleFactory__POST_NGCC__<M>(
injector: Injector, options: CompilerOptions,
moduleType: Type<M>): Promise<NgModuleFactory<M>> {
ngDevMode && assertNgModuleType(moduleType);
return Promise.resolve(new R3NgModuleFactory(moduleType));
}
export const ALLOW_MULTIPLE_PLATFORMS = new InjectionToken<boolean>('AllowMultipleToken');
/**
* Disable Angular's development mode, which turns off assertions and other
* checks within the framework.
*
* One important assertion this disables verifies that a change detection pass
* does not result in additional changes to any bindings (also known as
* unidirectional data flow).
*
*
*/
export function enableProdMode(): void {
if (_runModeLocked) {
throw new Error('Cannot enable prod mode after platform setup.');
}
_devMode = false;
}
/**
* Returns whether Angular is in development mode. After called once,
* the value is locked and won't change any more.
*
* By default, this is true, unless a user calls `enableProdMode` before calling this.
*
* @experimental APIs related to application bootstrap are currently under review.
*/
export function isDevMode(): boolean {
_runModeLocked = true;
return _devMode;
}
/**
* A token for third-party components that can register themselves with NgProbe.
@ -267,12 +258,9 @@ export class PlatformRef {
bootstrapModule<M>(
moduleType: Type<M>, compilerOptions: (CompilerOptions&BootstrapOptions)|
Array<CompilerOptions&BootstrapOptions> = []): Promise<NgModuleRef<M>> {
const compilerFactory: CompilerFactory = this.injector.get(CompilerFactory);
const options = optionsReducer({}, compilerOptions);
const compiler = compilerFactory.createCompiler([options]);
return compiler.compileModuleAsync(moduleType)
.then((moduleFactory) => this.bootstrapModuleFactory(moduleFactory, options));
return compileNgModuleFactory(this.injector, options, moduleType)
.then(moduleFactory => this.bootstrapModuleFactory(moduleFactory, options));
}
private _moduleDoBootstrap(moduleRef: InternalNgModuleRef<any>): void {