214 lines
7.0 KiB
TypeScript
214 lines
7.0 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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import {bindingUpdated, bindingUpdated2, bindingUpdated4, checkAndUpdateBinding, consumeBinding, getCreationMode} from './instructions';
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/**
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* If the value hasn't been saved, calls the pure function to store and return the
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* value. If it has been saved, returns the saved value.
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*
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* @param pureFn Function that returns a value
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* @returns value
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*/
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export function pureFunction0<T>(pureFn: () => T, thisArg?: any): T {
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return getCreationMode() ? checkAndUpdateBinding(thisArg ? pureFn.call(thisArg) : pureFn()) :
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consumeBinding();
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}
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/**
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* If the value of the provided exp has changed, calls the pure function to return
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* an updated value. Or if the value has not changed, returns cached value.
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*
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* @param pureFn Function that returns an updated value
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* @param exp Updated expression value
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* @returns Updated value
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*/
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export function pureFunction1(pureFn: (v: any) => any, exp: any, thisArg?: any): any {
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return bindingUpdated(exp) ?
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checkAndUpdateBinding(thisArg ? pureFn.call(thisArg, exp) : pureFn(exp)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @returns Updated value
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*/
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export function pureFunction2(
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pureFn: (v1: any, v2: any) => any, exp1: any, exp2: any, thisArg?: any): any {
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return bindingUpdated2(exp1, exp2) ?
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checkAndUpdateBinding(thisArg ? pureFn.call(thisArg, exp1, exp2) : pureFn(exp1, exp2)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @returns Updated value
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*/
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export function pureFunction3(
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pureFn: (v1: any, v2: any, v3: any) => any, exp1: any, exp2: any, exp3: any,
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thisArg?: any): any {
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const different = bindingUpdated2(exp1, exp2);
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return bindingUpdated(exp3) || different ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3) : pureFn(exp1, exp2, exp3)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @param exp4
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* @returns Updated value
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*/
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export function pureFunction4(
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pureFn: (v1: any, v2: any, v3: any, v4: any) => any, exp1: any, exp2: any, exp3: any, exp4: any,
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thisArg?: any): any {
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return bindingUpdated4(exp1, exp2, exp3, exp4) ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4) : pureFn(exp1, exp2, exp3, exp4)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @param exp4
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* @param exp5
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* @returns Updated value
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*/
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export function pureFunction5(
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pureFn: (v1: any, v2: any, v3: any, v4: any, v5: any) => any, exp1: any, exp2: any, exp3: any,
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exp4: any, exp5: any, thisArg?: any): any {
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const different = bindingUpdated4(exp1, exp2, exp3, exp4);
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return bindingUpdated(exp5) || different ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5) :
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pureFn(exp1, exp2, exp3, exp4, exp5)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @param exp4
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* @param exp5
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* @param exp6
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* @returns Updated value
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*/
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export function pureFunction6(
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pureFn: (v1: any, v2: any, v3: any, v4: any, v5: any, v6: any) => any, exp1: any, exp2: any,
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exp3: any, exp4: any, exp5: any, exp6: any, thisArg?: any): any {
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const different = bindingUpdated4(exp1, exp2, exp3, exp4);
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return bindingUpdated2(exp5, exp6) || different ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6) :
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pureFn(exp1, exp2, exp3, exp4, exp5, exp6)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @param exp4
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* @param exp5
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* @param exp6
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* @param exp7
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* @returns Updated value
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*/
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export function pureFunction7(
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pureFn: (v1: any, v2: any, v3: any, v4: any, v5: any, v6: any, v7: any) => any, exp1: any,
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exp2: any, exp3: any, exp4: any, exp5: any, exp6: any, exp7: any, thisArg?: any): any {
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let different = bindingUpdated4(exp1, exp2, exp3, exp4);
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different = bindingUpdated2(exp5, exp6) || different;
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return bindingUpdated(exp7) || different ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7) :
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pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7)) :
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consumeBinding();
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}
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/**
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn
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* @param exp1
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* @param exp2
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* @param exp3
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* @param exp4
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* @param exp5
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* @param exp6
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* @param exp7
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* @param exp8
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* @returns Updated value
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*/
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export function pureFunction8(
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pureFn: (v1: any, v2: any, v3: any, v4: any, v5: any, v6: any, v7: any, v8: any) => any,
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exp1: any, exp2: any, exp3: any, exp4: any, exp5: any, exp6: any, exp7: any, exp8: any,
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thisArg?: any): any {
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const different = bindingUpdated4(exp1, exp2, exp3, exp4);
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return bindingUpdated4(exp5, exp6, exp7, exp8) || different ?
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checkAndUpdateBinding(
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thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8) :
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pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8)) :
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consumeBinding();
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}
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/**
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* pureFunction instruction that can support any number of bindings.
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*
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* If the value of any provided exp has changed, calls the pure function to return
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* an updated value. Or if no values have changed, returns cached value.
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*
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* @param pureFn A pure function that takes binding values and builds an object or array
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* containing those values.
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* @param exp An array of binding values
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* @returns Updated value
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*/
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export function pureFunctionV(pureFn: (...v: any[]) => any, exps: any[], thisArg?: any): any {
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let different = false;
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for (let i = 0; i < exps.length; i++) {
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bindingUpdated(exps[i]) && (different = true);
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}
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return different ? checkAndUpdateBinding(pureFn.apply(thisArg, exps)) : consumeBinding();
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}
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