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feat(ivy): implement pipes (#22254)

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PR Close #22254
This commit is contained in:
Marc Laval
2018-02-16 16:23:27 +01:00
committed by Kara Erickson
parent 5d4fa7f0c8
commit f64ee15487
9 changed files with 699 additions and 71 deletions
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47
packages/core/src/render3/pipe.ts
View File

@ -6,17 +6,32 @@
* found in the LICENSE file at https://angular.io/license
*/
import {PipeTransform} from '../change_detection/pipe_transform';
import {getTView, load, store} from './instructions';
import {PipeDef} from './interfaces/definition';
import {pureFunction1, pureFunction2, pureFunction3, pureFunction4, pureFunctionV} from './pure_function';
/**
* Create a pipe.
*
* @param index Pipe index where the pipe will be stored.
* @param pipeDef Pipe definition object for registering life cycle hooks.
* @param pipe A Pipe instance.
* @param firstInstance (optional) The first instance of the pipe that can be reused for pure pipes.
* @returns T the instance of the pipe.
*/
export function pipe<T>(index: number, pipeDef: PipeDef<T>, pipe: T): void {
throw new Error('TODO: implement!');
export function pipe<T>(index: number, pipeDef: PipeDef<T>, firstInstance?: T): T {
const tView = getTView();
if (tView.firstTemplatePass) {
tView.data[index] = pipeDef;
if (pipeDef.onDestroy != null) {
(tView.destroyHooks || (tView.destroyHooks = [])).push(index, pipeDef.onDestroy);
}
}
const pipeInstance = pipeDef.pure && firstInstance ? firstInstance : pipeDef.n();
store(index, pipeInstance);
return pipeInstance;
}
/**
@ -29,7 +44,9 @@ export function pipe<T>(index: number, pipeDef: PipeDef<T>, pipe: T): void {
* @param v1 1st argument to {@link PipeTransform#transform}.
*/
export function pipeBind1(index: number, v1: any): any {
throw new Error('TODO: implement!');
const pipeInstance = load<PipeTransform>(index);
return isPure(index) ? pureFunction1(pipeInstance.transform, v1, pipeInstance) :
pipeInstance.transform(v1);
}
/**
@ -43,7 +60,9 @@ export function pipeBind1(index: number, v1: any): any {
* @param v2 2nd argument to {@link PipeTransform#transform}.
*/
export function pipeBind2(index: number, v1: any, v2: any): any {
throw new Error('TODO: implement!');
const pipeInstance = load<PipeTransform>(index);
return isPure(index) ? pureFunction2(pipeInstance.transform, v1, v2, pipeInstance) :
pipeInstance.transform(v1, v2);
}
/**
@ -58,7 +77,9 @@ export function pipeBind2(index: number, v1: any, v2: any): any {
* @param v3 4rd argument to {@link PipeTransform#transform}.
*/
export function pipeBind3(index: number, v1: any, v2: any, v3: any): any {
throw new Error('TODO: implement!');
const pipeInstance = load<PipeTransform>(index);
return isPure(index) ? pureFunction3(pipeInstance.transform.bind(pipeInstance), v1, v2, v3) :
pipeInstance.transform(v1, v2, v3);
}
/**
@ -74,7 +95,9 @@ export function pipeBind3(index: number, v1: any, v2: any, v3: any): any {
* @param v4 4th argument to {@link PipeTransform#transform}.
*/
export function pipeBind4(index: number, v1: any, v2: any, v3: any, v4: any): any {
throw new Error('TODO: implement!');
const pipeInstance = load<PipeTransform>(index);
return isPure(index) ? pureFunction4(pipeInstance.transform, v1, v2, v3, v4, pipeInstance) :
pipeInstance.transform(v1, v2, v3, v4);
}
/**
@ -87,5 +110,11 @@ export function pipeBind4(index: number, v1: any, v2: any, v3: any, v4: any): an
* @param values Array of arguments to pass to {@link PipeTransform#transform} method.
*/
export function pipeBindV(index: number, values: any[]): any {
throw new Error('TODO: implement!');
}
const pipeInstance = load<PipeTransform>(index);
return isPure(index) ? pureFunctionV(pipeInstance.transform, values, pipeInstance) :
pipeInstance.transform.apply(pipeInstance, values);
}
function isPure(index: number): boolean {
return (<PipeDef<any>>getTView().data[index]).pure;
}