@angular/core
Version:
Angular - the core framework
202 lines • 21.6 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { WrappedValue } from '../change_detection/change_detection_util';
import { store, ɵɵload } from './instructions/all';
import { BINDING_INDEX, HEADER_OFFSET, TVIEW } from './interfaces/view';
import { ɵɵpureFunction1, ɵɵpureFunction2, ɵɵpureFunction3, ɵɵpureFunction4, ɵɵpureFunctionV } from './pure_function';
import { getLView } from './state';
import { NO_CHANGE } from './tokens';
/**
* Create a pipe.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe will be stored.
* @param {?} pipeName The name of the pipe
* @return {?} T the instance of the pipe.
*
*/
export function ɵɵpipe(index, pipeName) {
/** @type {?} */
const tView = getLView()[TVIEW];
/** @type {?} */
let pipeDef;
/** @type {?} */
const adjustedIndex = index + HEADER_OFFSET;
if (tView.firstTemplatePass) {
pipeDef = getPipeDef(pipeName, tView.pipeRegistry);
tView.data[adjustedIndex] = pipeDef;
if (pipeDef.onDestroy) {
(tView.destroyHooks || (tView.destroyHooks = [])).push(adjustedIndex, pipeDef.onDestroy);
}
}
else {
pipeDef = (/** @type {?} */ (tView.data[adjustedIndex]));
}
/** @type {?} */
const pipeInstance = pipeDef.factory();
store(index, pipeInstance);
return pipeInstance;
}
/**
* Searches the pipe registry for a pipe with the given name. If one is found,
* returns the pipe. Otherwise, an error is thrown because the pipe cannot be resolved.
*
* \@publicApi
* @param {?} name Name of pipe to resolve
* @param {?} registry Full list of available pipes
* @return {?} Matching PipeDef
*
*/
function getPipeDef(name, registry) {
if (registry) {
for (let i = registry.length - 1; i >= 0; i--) {
/** @type {?} */
const pipeDef = registry[i];
if (name === pipeDef.name) {
return pipeDef;
}
}
}
throw new Error(`The pipe '${name}' could not be found!`);
}
/**
* Invokes a pipe with 1 arguments.
*
* This instruction acts as a guard to {\@link PipeTransform#transform} invoking
* the pipe only when an input to the pipe changes.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe was stored on creation.
* @param {?} slotOffset the offset in the reserved slot space
* @param {?} v1 1st argument to {\@link PipeTransform#transform}.
*
* @return {?}
*/
export function ɵɵpipeBind1(index, slotOffset, v1) {
/** @type {?} */
const pipeInstance = ɵɵload(index);
return unwrapValue(isPure(index) ? ɵɵpureFunction1(slotOffset, pipeInstance.transform, v1, pipeInstance) :
pipeInstance.transform(v1));
}
/**
* Invokes a pipe with 2 arguments.
*
* This instruction acts as a guard to {\@link PipeTransform#transform} invoking
* the pipe only when an input to the pipe changes.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe was stored on creation.
* @param {?} slotOffset the offset in the reserved slot space
* @param {?} v1 1st argument to {\@link PipeTransform#transform}.
* @param {?} v2 2nd argument to {\@link PipeTransform#transform}.
*
* @return {?}
*/
export function ɵɵpipeBind2(index, slotOffset, v1, v2) {
/** @type {?} */
const pipeInstance = ɵɵload(index);
return unwrapValue(isPure(index) ? ɵɵpureFunction2(slotOffset, pipeInstance.transform, v1, v2, pipeInstance) :
pipeInstance.transform(v1, v2));
}
/**
* Invokes a pipe with 3 arguments.
*
* This instruction acts as a guard to {\@link PipeTransform#transform} invoking
* the pipe only when an input to the pipe changes.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe was stored on creation.
* @param {?} slotOffset the offset in the reserved slot space
* @param {?} v1 1st argument to {\@link PipeTransform#transform}.
* @param {?} v2 2nd argument to {\@link PipeTransform#transform}.
* @param {?} v3 4rd argument to {\@link PipeTransform#transform}.
*
* @return {?}
*/
export function ɵɵpipeBind3(index, slotOffset, v1, v2, v3) {
/** @type {?} */
const pipeInstance = ɵɵload(index);
return unwrapValue(isPure(index) ?
ɵɵpureFunction3(slotOffset, pipeInstance.transform, v1, v2, v3, pipeInstance) :
pipeInstance.transform(v1, v2, v3));
}
/**
* Invokes a pipe with 4 arguments.
*
* This instruction acts as a guard to {\@link PipeTransform#transform} invoking
* the pipe only when an input to the pipe changes.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe was stored on creation.
* @param {?} slotOffset the offset in the reserved slot space
* @param {?} v1 1st argument to {\@link PipeTransform#transform}.
* @param {?} v2 2nd argument to {\@link PipeTransform#transform}.
* @param {?} v3 3rd argument to {\@link PipeTransform#transform}.
* @param {?} v4 4th argument to {\@link PipeTransform#transform}.
*
* @return {?}
*/
export function ɵɵpipeBind4(index, slotOffset, v1, v2, v3, v4) {
/** @type {?} */
const pipeInstance = ɵɵload(index);
return unwrapValue(isPure(index) ?
ɵɵpureFunction4(slotOffset, pipeInstance.transform, v1, v2, v3, v4, pipeInstance) :
pipeInstance.transform(v1, v2, v3, v4));
}
/**
* Invokes a pipe with variable number of arguments.
*
* This instruction acts as a guard to {\@link PipeTransform#transform} invoking
* the pipe only when an input to the pipe changes.
*
* \@codeGenApi
* @param {?} index Pipe index where the pipe was stored on creation.
* @param {?} slotOffset the offset in the reserved slot space
* @param {?} values Array of arguments to pass to {\@link PipeTransform#transform} method.
*
* @return {?}
*/
export function ɵɵpipeBindV(index, slotOffset, values) {
/** @type {?} */
const pipeInstance = ɵɵload(index);
return unwrapValue(isPure(index) ? ɵɵpureFunctionV(slotOffset, pipeInstance.transform, values, pipeInstance) :
pipeInstance.transform.apply(pipeInstance, values));
}
/**
* @param {?} index
* @return {?}
*/
function isPure(index) {
return ((/** @type {?} */ (getLView()[TVIEW].data[index + HEADER_OFFSET]))).pure;
}
/**
* Unwrap the output of a pipe transformation.
* In order to trick change detection into considering that the new value is always different from
* the old one, the old value is overwritten by NO_CHANGE.
*
* @param {?} newValue the pipe transformation output.
* @return {?}
*/
function unwrapValue(newValue) {
if (WrappedValue.isWrapped(newValue)) {
newValue = WrappedValue.unwrap(newValue);
/** @type {?} */
const lView = getLView();
// The NO_CHANGE value needs to be written at the index where the impacted binding value is
// stored
/** @type {?} */
const bindingToInvalidateIdx = lView[BINDING_INDEX];
lView[bindingToInvalidateIdx] = NO_CHANGE;
}
return newValue;
}
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {WrappedValue} from '../change_detection/change_detection_util';\nimport {PipeTransform} from '../change_detection/pipe_transform';\n\nimport {store, ɵɵload} from './instructions/all';\nimport {PipeDef, PipeDefList} from './interfaces/definition';\nimport {BINDING_INDEX, HEADER_OFFSET, TVIEW} from './interfaces/view';\nimport {ɵɵpureFunction1, ɵɵpureFunction2, ɵɵpureFunction3, ɵɵpureFunction4, ɵɵpureFunctionV} from './pure_function';\nimport {getLView} from './state';\nimport {NO_CHANGE} from './tokens';\n\n\n\n/**\n * Create a pipe.\n *\n * @param index Pipe index where the pipe will be stored.\n * @param pipeName The name of the pipe\n * @returns T the instance of the pipe.\n *\n * @codeGenApi\n */\nexport function ɵɵpipe(index: number, pipeName: string): any {\n  const tView = getLView()[TVIEW];\n  let pipeDef: PipeDef<any>;\n  const adjustedIndex = index + HEADER_OFFSET;\n\n  if (tView.firstTemplatePass) {\n    pipeDef = getPipeDef(pipeName, tView.pipeRegistry);\n    tView.data[adjustedIndex] = pipeDef;\n    if (pipeDef.onDestroy) {\n      (tView.destroyHooks || (tView.destroyHooks = [])).push(adjustedIndex, pipeDef.onDestroy);\n    }\n  } else {\n    pipeDef = tView.data[adjustedIndex] as PipeDef<any>;\n  }\n\n  const pipeInstance = pipeDef.factory();\n  store(index, pipeInstance);\n  return pipeInstance;\n}\n\n/**\n * Searches the pipe registry for a pipe with the given name. If one is found,\n * returns the pipe. Otherwise, an error is thrown because the pipe cannot be resolved.\n *\n * @param name Name of pipe to resolve\n * @param registry Full list of available pipes\n * @returns Matching PipeDef\n *\n * @publicApi\n */\nfunction getPipeDef(name: string, registry: PipeDefList | null): PipeDef<any> {\n  if (registry) {\n    for (let i = registry.length - 1; i >= 0; i--) {\n      const pipeDef = registry[i];\n      if (name === pipeDef.name) {\n        return pipeDef;\n      }\n    }\n  }\n  throw new Error(`The pipe '${name}' could not be found!`);\n}\n\n/**\n * Invokes a pipe with 1 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nexport function ɵɵpipeBind1(index: number, slotOffset: number, v1: any): any {\n  const pipeInstance = ɵɵload<PipeTransform>(index);\n  return unwrapValue(\n      isPure(index) ? ɵɵpureFunction1(slotOffset, pipeInstance.transform, v1, pipeInstance) :\n                      pipeInstance.transform(v1));\n}\n\n/**\n * Invokes a pipe with 2 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nexport function ɵɵpipeBind2(index: number, slotOffset: number, v1: any, v2: any): any {\n  const pipeInstance = ɵɵload<PipeTransform>(index);\n  return unwrapValue(\n      isPure(index) ? ɵɵpureFunction2(slotOffset, pipeInstance.transform, v1, v2, pipeInstance) :\n                      pipeInstance.transform(v1, v2));\n}\n\n/**\n * Invokes a pipe with 3 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n * @param v3 4rd argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nexport function ɵɵpipeBind3(index: number, slotOffset: number, v1: any, v2: any, v3: any): any {\n  const pipeInstance = ɵɵload<PipeTransform>(index);\n  return unwrapValue(\n      isPure(index) ?\n          ɵɵpureFunction3(slotOffset, pipeInstance.transform, v1, v2, v3, pipeInstance) :\n          pipeInstance.transform(v1, v2, v3));\n}\n\n/**\n * Invokes a pipe with 4 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n * @param v3 3rd argument to {@link PipeTransform#transform}.\n * @param v4 4th argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nexport function ɵɵpipeBind4(\n    index: number, slotOffset: number, v1: any, v2: any, v3: any, v4: any): any {\n  const pipeInstance = ɵɵload<PipeTransform>(index);\n  return unwrapValue(\n      isPure(index) ?\n          ɵɵpureFunction4(slotOffset, pipeInstance.transform, v1, v2, v3, v4, pipeInstance) :\n          pipeInstance.transform(v1, v2, v3, v4));\n}\n\n/**\n * Invokes a pipe with variable number of arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param values Array of arguments to pass to {@link PipeTransform#transform} method.\n *\n * @codeGenApi\n */\nexport function ɵɵpipeBindV(index: number, slotOffset: number, values: any[]): any {\n  const pipeInstance = ɵɵload<PipeTransform>(index);\n  return unwrapValue(\n      isPure(index) ? ɵɵpureFunctionV(slotOffset, pipeInstance.transform, values, pipeInstance) :\n                      pipeInstance.transform.apply(pipeInstance, values));\n}\n\nfunction isPure(index: number): boolean {\n  return (<PipeDef<any>>getLView()[TVIEW].data[index + HEADER_OFFSET]).pure;\n}\n\n/**\n * Unwrap the output of a pipe transformation.\n * In order to trick change detection into considering that the new value is always different from\n * the old one, the old value is overwritten by NO_CHANGE.\n *\n * @param newValue the pipe transformation output.\n */\nfunction unwrapValue(newValue: any): any {\n  if (WrappedValue.isWrapped(newValue)) {\n    newValue = WrappedValue.unwrap(newValue);\n    const lView = getLView();\n    // The NO_CHANGE value needs to be written at the index where the impacted binding value is\n    // stored\n    const bindingToInvalidateIdx = lView[BINDING_INDEX];\n    lView[bindingToInvalidateIdx] = NO_CHANGE;\n  }\n  return newValue;\n}\n"]}