From b48a0d3a1c2ce868fe24b6ddd04a2411e24a69d0 Mon Sep 17 00:00:00 2001
From: Bishops-exe <you@example.com>
Date: Fri, 12 Jun 2026 18:38:53 +0200
Subject: [PATCH] feat(wasm): add TypeScript type declarations for Span,
 Sprite, FxHashMap

  tsify can't auto-generate types for external/opaque types, so manual
  typescript_custom_section fills the gaps for WASM consumers.
---
 src/wasm.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/wasm.rs b/src/wasm.rs
index dd8e8ea..f9bab1c 100644
--- a/src/wasm.rs
+++ b/src/wasm.rs
@@ -30,6 +30,18 @@ use crate::{
     vfs::MemFS,
 };
 
+#[wasm_bindgen(typescript_custom_section)]
+const TS_APPEND_CONTENT: &'static str = "
+export interface Span {
+    start: number
+    end: number
+}
+
+type Sprite = object
+
+type FxHashMap<K, V> = Map<K, V>
+";
+
 #[derive(Tsify, Serialize, Deserialize)]
 #[tsify(into_wasm_abi, from_wasm_abi)]
 pub struct Build {