From 3cc0f1ef0dd9d08bf416e1299fb497db3fbc0d2f Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Mon, 24 Apr 2023 15:20:08 +0200
Subject: [PATCH] Disable stacker on WASM

---
 Cargo.toml      |  2 ++
 src/eval/mod.rs | 10 +++++++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 36845812c..416197b84 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,6 +53,8 @@ usvg = { version = "0.22", default-features = false, features = ["text"] }
 xmp-writer = "0.1"
 tracing = "0.1.37"
 indexmap = "1.9.3"
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 stacker = "0.1.15"
 
 [profile.dev]
diff --git a/src/eval/mod.rs b/src/eval/mod.rs
index 05a434041..850a3d32f 100644
--- a/src/eval/mod.rs
+++ b/src/eval/mod.rs
@@ -1119,10 +1119,14 @@ impl Eval for ast::FuncCall {
 
         let callee = callee.cast::<Func>().at(callee_span)?;
         let point = || Tracepoint::Call(callee.name().map(Into::into));
+        let f = || callee.call_vm(vm, args).trace(vm.world(), point, span);
 
-        stacker::maybe_grow(32 * 1024, 2 * 1024 * 1024, || {
-            callee.call_vm(vm, args).trace(vm.world(), point, span)
-        })
+        // Stacker is broken on WASM.
+        #[cfg(target_arch = "wasm32")]
+        return f();
+
+        #[cfg(not(target_arch = "wasm32"))]
+        stacker::maybe_grow(32 * 1024, 2 * 1024 * 1024, f)
     }
 }