wip

Author: trueadm

packages/svelte/src/index-client.js

@@ -219,4 +219,4 @@ export { getContext, getAllContexts, hasContext, setContext } from './internal/c
 export { hydrate, mount, unmount } from './internal/client/render.js';
 export { tick, untrack } from './internal/client/runtime.js';
 export { createRawSnippet } from './internal/client/dom/blocks/snippet.js';
-export { Resource, getResource, deferPending } from './internal/client/reactivity/resources.js';
+export { Resource, createResourceContext, deferPending } from './internal/client/reactivity/resources.js';

packages/svelte/src/internal/client/reactivity/resources.js

@@ -24,25 +24,14 @@ export class Resource {
 
 	/**
 	 * @param {() => Promise<T>} fn
-	 * @param {symbol} [symbol]
 	 */
-	constructor(fn, symbol) {
+	constructor(fn) {
 		let parent = /** @type {Effect | null} */ (active_effect);
 
 		if (parent === null) {
 			throw new Error('TODO cannot create resources outside of an effect');
 		}
 
-		if (typeof symbol === 'symbol') {
-			let resources = getContext(resource_symbol);
-
-			if (resources === undefined) {
-				resources = new Map();
-				setContext(resource_symbol, resources);
-			}
-			resources.set(symbol, this);
-		}
-
 		/** @type {{}} */
 		var current_token;
 
@@ -108,11 +97,30 @@ export class Resource {
 
 /**
  * @template T
- * @param {symbol} symbol
- * @returns {Resource<T> | null}
+ * @returns {[set_resource: (resource: Resource<T>) => void, get_resource: () => Resource<T>]}
  */
-export function getResource(symbol) {
-	return getContext(resource_symbol)?.get(symbol) ?? null;
+export function createResourceContext() {
+	const key = {};
+
+	const set_resource = (/** @type {Resource<T>} */ resource) => {
+		let resources = getContext(resource_symbol);
+
+		if (resources === undefined) {
+			resources = new Map();
+			setContext(resource_symbol, resources);
+		}
+		resources.set(key, resource);
+	};
+
+	const get_resource = () => {
+		var resource = getContext(resource_symbol)?.get(key);
+		if (resource === undefined) {
+			throw new Error('TODO: No resource found');
+		}
+		return resource;
+	};
+
+	return [set_resource, get_resource];
 }
 
 /**

packages/svelte/types/index.d.ts

@@ -512,13 +512,13 @@ declare module 'svelte' {
 	 * ```
 	 * */
 	export function untrack<T>(fn: () => T): T;
-	export function getResource<T>(symbol: symbol): Resource<T> | null;
+	export function createResourceContext<T>(): [set_resource: (resource: Resource<T>) => void, get_resource: () => Resource<T>];
 
 	export function deferPending<T, V>(resources: Resource<T> | Resource<T>[], fn: () => V): V;
 
 	export class Resource<T> {
 
-		constructor(fn: () => Promise<T>, symbol?: symbol | undefined);
+		constructor(fn: () => Promise<T>);
 		get pending(): boolean;
 		get current(): T;