get all contexts

src/runtime/index.ts

@@ -7,6 +7,7 @@ export {
 	afterUpdate,
 	setContext,
 	getContext,
+	getAllContexts,
 	hasContext,
 	tick,
 	createEventDispatcher,

src/runtime/internal/lifecycle.ts

@@ -54,6 +54,10 @@ export function getContext<T>(key): T {
 	return get_current_component().$$.context.get(key);
 }
 
+export function getAllContexts() {
+	return get_current_component().$$.context;
+}
+
 export function hasContext(key): boolean {
 	return get_current_component().$$.context.has(key);	
 }

src/runtime/ssr.ts

@@ -1,6 +1,7 @@
 export {
 	setContext,
 	getContext,
+	getAllContexts,
 	hasContext,
 	tick,
 	createEventDispatcher,

test/runtime/samples/context-api-d/Leaf.svelte

@@ -0,0 +1,9 @@
+<script>
+	import { getAllContexts } from 'svelte';
+
+	const context = getAllContexts();
+</script>
+
+{#each [...context.keys()] as key}
+	<div>{key}: {context.get(key)}</div>
+{/each}

test/runtime/samples/context-api-d/Nested.svelte

@@ -0,0 +1,8 @@
+<script>
+	import { setContext } from 'svelte';
+  setContext('a', 1);
+  setContext('b', 2);
+  setContext('c', 3);
+</script>
+
+<slot></slot>

test/runtime/samples/context-api-d/_config.js

@@ -0,0 +1,7 @@
+export default {
+	html: `
+		<div>a: 1</div>
+		<div>b: 2</div>
+		<div>c: 3</div>
+	`
+};

test/runtime/samples/context-api-d/main.svelte

@@ -0,0 +1,8 @@
+<script>
+  import Nested from './Nested.svelte';
+  import Leaf from './Leaf.svelte';
+</script>
+
+<Nested>
+  <Leaf />
+</Nested>