diff --git a/src/compiler/compile/utils/get_slot_data.ts b/src/compiler/compile/utils/get_slot_data.ts
index 9d2e561149..b0cdd30cde 100644
--- a/src/compiler/compile/utils/get_slot_data.ts
+++ b/src/compiler/compile/utils/get_slot_data.ts
@@ -1,49 +1,59 @@
-import Attribute from '../nodes/Attribute';
 import { p, x } from 'code-red';
-import { string_literal } from './stringify';
-import Block from '../render_dom/Block';
+import { string_literal } from './stringify.js';
 
-export default function get_slot_data(values: Map<string, Attribute>, block: Block = null) {
-	return {
-		type: 'ObjectExpression',
-		properties: Array.from(values.values())
-			.filter((attribute) => attribute.name !== 'name')
-			.map((attribute) => {
-				if (attribute.is_spread) {
-					const argument = get_spread_value(block, attribute);
-					return {
-						type: 'SpreadElement',
-						argument
-					};
-				}
+/**
+ * @param {Map<string, Attribute>} values
+ * @param {Block} block
+ */
+export default function get_slot_data(values, block = null) {
+    return {
+        type: 'ObjectExpression',
+        properties: Array.from(values.values())
+            .filter((attribute) => attribute.name !== 'name')
+            .map((attribute) => {
+            if (attribute.is_spread) {
+                const argument = get_spread_value(block, attribute);
+                return {
+                    type: 'SpreadElement',
+                    argument
+                };
+            }
+            const value = get_value(block, attribute);
+            return p `${attribute.name}: ${value}`;
+        })
+    };
+}
 
-				const value = get_value(block, attribute);
-				return p`${attribute.name}: ${value}`;
-			})
-	};
+/**
+ * @param {Block} block
+ * @param {Attribute} attribute
+ */
+function get_value(block, attribute) {
+    if (attribute.is_true)
+        return x `true`;
+    if (attribute.chunks.length === 0)
+        return x `""`;
+    let value = attribute.chunks
+        .map((chunk) => chunk.type === 'Text'
+        ? string_literal(chunk.data)
+        : block
+            ? chunk.manipulate(block)
+            : chunk.node)
+        .reduce((lhs, rhs) => x `${lhs} + ${rhs}`);
+    if (attribute.chunks.length > 1 && attribute.chunks[0].type !== 'Text') {
+        value = x `"" + ${value}`;
+    }
+    return value;
 }
 
-function get_value(block: Block, attribute: Attribute) {
-	if (attribute.is_true) return x`true`;
-	if (attribute.chunks.length === 0) return x`""`;
+/**
+ * @param {Block} block
+ * @param {Attribute} attribute
+ */
+function get_spread_value(block, attribute) {
+    return block ? attribute.expression.manipulate(block) : attribute.expression.node;
+}
 
-	let value = attribute.chunks
-		.map((chunk) =>
-			chunk.type === 'Text'
-				? string_literal(chunk.data)
-				: block
-				? chunk.manipulate(block)
-				: chunk.node
-		)
-		.reduce((lhs, rhs) => x`${lhs} + ${rhs}`);
 
-	if (attribute.chunks.length > 1 && attribute.chunks[0].type !== 'Text') {
-		value = x`"" + ${value}`;
-	}
 
-	return value;
-}
 
-function get_spread_value(block: Block, attribute: Attribute) {
-	return block ? attribute.expression.manipulate(block) : attribute.expression.node;
-}