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44 KiB
JSON
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{"ast":null,"code":"import { isObservable, of, Subject } from 'rxjs';\nimport { ɵɵdefineInjectable, Injectable, InjectionToken } from '@angular/core';\n\n/**\n * @license\n * Copyright Google LLC 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 */\nimport * as ɵngcc0 from '@angular/core';\nclass DataSource {}\n/** Checks whether an object is a data source. */\nfunction isDataSource(value) {\n // Check if the value is a DataSource by observing if it has a connect function. Cannot\n // be checked as an `instanceof DataSource` since people could create their own sources\n // that match the interface, but don't extend DataSource.\n return value && typeof value.connect === 'function';\n}\n\n/**\n * @license\n * Copyright Google LLC 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/** DataSource wrapper for a native array. */\nclass ArrayDataSource extends DataSource {\n constructor(_data) {\n super();\n this._data = _data;\n }\n connect() {\n return isObservable(this._data) ? this._data : of(this._data);\n }\n disconnect() {}\n}\n\n/**\n * @license\n * Copyright Google LLC 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\n/**\n * @license\n * Copyright Google LLC 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/**\n * A repeater that destroys views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will always construct a new embedded view for each item.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\nclass _DisposeViewRepeaterStrategy {\n applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {\n changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {\n let view;\n let operation;\n if (record.previousIndex == null) {\n const insertContext = itemContextFactory(record, adjustedPreviousIndex, currentIndex);\n view = viewContainerRef.createEmbeddedView(insertContext.templateRef, insertContext.context, insertContext.index);\n operation = 1 /* INSERTED */;\n } else if (currentIndex == null) {\n viewContainerRef.remove(adjustedPreviousIndex);\n operation = 3 /* REMOVED */;\n } else {\n view = viewContainerRef.get(adjustedPreviousIndex);\n viewContainerRef.move(view, currentIndex);\n operation = 2 /* MOVED */;\n }\n\n if (itemViewChanged) {\n itemViewChanged({\n context: view === null || view === void 0 ? void 0 : view.context,\n operation,\n record\n });\n }\n });\n }\n detach() {}\n}\n\n/**\n * @license\n * Copyright Google LLC 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/**\n * A repeater that caches views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will reuse one of the cached views instead of creating a new\n * embedded view. Recycling cached views reduces the quantity of expensive DOM\n * inserts.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\nclass _RecycleViewRepeaterStrategy {\n constructor() {\n /**\n * The s
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