fix binding with map

src/compiler/compile/utils/get_object.ts

@@ -1,6 +1,28 @@
-import { Node, Identifier } from 'estree';
+import {
+	Node,
+	Identifier,
+	ArrayExpression,
+	ObjectExpression,
+	ThisExpression,
+	ObjectPattern,
+	ArrayPattern,
+	Literal,
+} from "estree";
 
-export default function get_object(node: Node): Identifier {
-	while (node.type === 'MemberExpression') node = node.object;
-	return node as Identifier;
+type ObjectType =
+	| Identifier
+	| ThisExpression
+	| ArrayExpression
+	| ObjectExpression
+	| ArrayPattern
+	| ObjectPattern
+	| Literal;
+
+export default function get_object(node: Node): ObjectType {
+	while (true) {
+		if (node.type === "MemberExpression") node = node.object;
+		else if (node.type === "CallExpression") node = node.callee;
+		else break;
+	}
+	return node as ObjectType;
 }

test/runtime/samples/binding-input-text-map/_config.js

@@ -0,0 +1,24 @@
+export default {
+	html: `
+		<input>
+	`,
+
+	ssrHtml: `
+		<input value="50">
+	`,
+
+	async test({ assert, component, target, window }) {
+		const input = target.querySelector('input');
+		assert.equal(input.value, '50');
+
+		component.map.get(component.id).x = 30;
+		component.map = component.map;
+		assert.equal(input.value, '30');
+
+		input.value = '42';
+		await input.dispatchEvent(new window.Event('input'));
+
+		assert.equal(input.value, '42');
+		assert.equal(component.map.get(component.id).x, '42')
+	}
+};

test/runtime/samples/binding-input-text-map/main.svelte

@@ -0,0 +1,7 @@
+<script>
+  export let id = 1;
+  export let map = new Map();
+	map.set(id, { x: 50, y: 50 });
+</script>
+
+<input bind:value={map.get(id).x} />