diff --git a/src/compiler/compile/nodes/shared/Node.ts b/src/compiler/compile/nodes/shared/Node.ts
index a0d8424ce8..caafb0516a 100644
--- a/src/compiler/compile/nodes/shared/Node.ts
+++ b/src/compiler/compile/nodes/shared/Node.ts
@@ -1,81 +1,122 @@
-import Attribute from '../Attribute';
-import Component from '../../Component';
-import { INode } from '../interfaces';
-import Text from '../Text';
-import { TemplateNode } from '../../../interfaces';
-
 export default class Node {
-	readonly start: number;
-	readonly end: number;
-	readonly component: Component;
-	readonly parent: INode;
-	readonly type: string;
-
-	prev?: INode;
-	next?: INode;
-
-	can_use_innerhtml: boolean;
-	is_static_content: boolean;
-	var: string;
-	attributes: Attribute[];
-
-	constructor(component: Component, parent: Node, _scope, info: TemplateNode) {
-		this.start = info.start;
-		this.end = info.end;
-		this.type = info.type;
-
-		// this makes properties non-enumerable, which makes logging
-		// bearable. might have a performance cost. TODO remove in prod?
-		Object.defineProperties(this, {
-			component: {
-				value: component
-			},
-			parent: {
-				value: parent
-			}
-		});
-
-		this.can_use_innerhtml = true;
-		this.is_static_content = true;
-	}
-
-	cannot_use_innerhtml() {
-		if (this.can_use_innerhtml !== false) {
-			this.can_use_innerhtml = false;
-			if (this.parent) this.parent.cannot_use_innerhtml();
-		}
-	}
-
-	not_static_content() {
-		this.is_static_content = false;
-		if (this.parent) this.parent.not_static_content();
-	}
-
-	find_nearest(selector: RegExp) {
-		if (selector.test(this.type)) return this;
-		if (this.parent) return this.parent.find_nearest(selector);
-	}
-
-	get_static_attribute_value(name: string) {
-		const attribute =
-			this.attributes &&
-			this.attributes.find(
-				(attr: Attribute) => attr.type === 'Attribute' && attr.name.toLowerCase() === name
-			);
-
-		if (!attribute) return null;
-
-		if (attribute.is_true) return true;
-		if (attribute.chunks.length === 0) return '';
-
-		if (attribute.chunks.length === 1 && attribute.chunks[0].type === 'Text') {
-			return (attribute.chunks[0] as Text).data;
-		}
-
-		return null;
-	}
-
-	has_ancestor(type: string) {
-		return this.parent ? this.parent.type === type || this.parent.has_ancestor(type) : false;
-	}
+
+ /**
+  * @readonly
+     * @type {number}
+     */
+    start;
+
+ /**
+  * @readonly
+     * @type {number}
+     */
+    end;
+
+ /**
+  * @readonly
+     * @type {import('../../Component.js').default}
+     */
+    component;
+
+ /**
+  * @readonly
+     * @type {import('../interfaces.js').INode}
+     */
+    parent;
+
+ /**
+  * @readonly
+     * @type {string}
+     */
+    type;
+
+    /** @type {import('../interfaces.js').INode} */
+    prev;
+
+    /** @type {import('../interfaces.js').INode} */
+    next;
+
+    /** @type {boolean} */
+    can_use_innerhtml;
+
+    /** @type {boolean} */
+    is_static_content;
+
+    /** @type {string} */
+    var;
+
+    /** @type {import('../Attribute.js').default[]} */
+    attributes;
+
+ /**
+  * @param {import('../../Component.js').default} component  *
+     * @param {Node} parent  *
+     * @param {any} _scope  *
+     * @param {import('../../../interfaces.js').TemplateNode} info  undefined
+     */
+    constructor(component, parent, _scope, info) {
+        this.start = info.start;
+        this.end = info.end;
+        this.type = info.type;
+        // this makes properties non-enumerable, which makes logging
+        // bearable. might have a performance cost. TODO remove in prod?
+        Object.defineProperties(this, {
+            component: {
+                value: component
+            },
+            parent: {
+                value: parent
+            }
+        });
+        this.can_use_innerhtml = true;
+        this.is_static_content = true;
+    }
+    cannot_use_innerhtml() {
+        if (this.can_use_innerhtml !== false) {
+            this.can_use_innerhtml = false;
+            if (this.parent)
+                this.parent.cannot_use_innerhtml();
+        }
+    }
+    not_static_content() {
+        this.is_static_content = false;
+        if (this.parent)
+            this.parent.not_static_content();
+    }
+
+    /** @param {RegExp} selector */
+    find_nearest(selector) {
+        if (selector.test(this.type))
+            return this;
+        if (this.parent)
+            return this.parent.find_nearest(selector);
+    }
+
+    /** @param {string} name */
+    get_static_attribute_value(name) {
+        const attribute = this.attributes &&
+            this.attributes.find(
+
+            /** @param {import('../Attribute.js').default} attr */
+            (attr) => attr.type === 'Attribute' && attr.name.toLowerCase() === name);
+        if (!attribute)
+            return null;
+        if (attribute.is_true)
+            return true;
+        if (attribute.chunks.length === 0)
+            return '';
+        if (attribute.chunks.length === 1 && attribute.chunks[0].type === 'Text') {
+            return ( /** @type {import('../Text.js').default} */(attribute.chunks[0])).data;
+        }
+        return null;
+    }
+
+    /** @param {string} type */
+    has_ancestor(type) {
+        return this.parent ? this.parent.type === type || this.parent.has_ancestor(type) : false;
+    }
 }
+
+
+
+
diff --git a/src/compiler/compile/nodes/shared/map_children.js b/src/compiler/compile/nodes/shared/map_children.js
index c3d0965f99..6dd81db0ea 100644
--- a/src/compiler/compile/nodes/shared/map_children.js
+++ b/src/compiler/compile/nodes/shared/map_children.js
@@ -20,6 +20,8 @@ import Title from '../Title.js';
 import Window from '../Window.js';
 import { push_array } from '../../../utils/push_array.js';
 
+/** @typedef {ReturnType<typeof map_children>} Children */
+
 /** @param {any} type */
 function get_constructor(type) {
 	switch (type) {
@@ -94,5 +96,3 @@ export default function map_children(component, parent, scope, children) {
 		}
 	);
 }
-
-/** @typedef {Class<map_children>>} Children */