Release 0.7.1

Author: dannote

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.7.1
+
+### Fixed
+
+- Fix `parse/2` hitting serde_json recursion limit on deeply nested ASTs (e.g. large bundled output from Vue + reka-ui). Uses streaming deserializer with unbounded depth.
+
 ## 0.7.0
 
 ### Breaking changes

mix.exs

@@ -1,7 +1,7 @@
 defmodule OXC.MixProject do
   use Mix.Project
 
-  @version "0.7.0"
+  @version "0.7.1"
   @source_url "https://github.com/elixir-volt/oxc_ex"
 
   def project do

native/oxc_ex_nif/Cargo.toml

@@ -27,6 +27,6 @@ oxc_resolver = "=11.10.0"
 rolldown = "=0.1.0"
 rolldown_common = "=0.1.0"
 serde = { version = "1", features = ["derive"] }
-serde_json = "1"
+serde_json = { version = "1", features = ["unbounded_depth"] }
 tempfile = "3"
 tokio = { version = "1", features = ["rt", "time"] }

native/oxc_ex_nif/src/parse.rs

@@ -77,7 +77,14 @@ pub fn parse<'a>(env: Env<'a>, source: &str, filename: &str) -> NifResult<Term<'
     // OXC's ESTree serializer outputs JSON strings via a custom compact serializer
     // (not standard serde::Serialize). Parsing back to Value is unavoidable without
     // writing a custom OXC-to-BEAM-term serializer.
-    let json = serde_json::from_str::<Value>(&ret.program.to_estree_ts_json(false)).unwrap();
+    let json_str = ret.program.to_estree_ts_json(false);
+    let mut deserializer = serde_json::Deserializer::from_str(&json_str);
+    deserializer.disable_recursion_limit();
+    let json: Value = match deserializer.into_iter().next() {
+        Some(Ok(v)) => v,
+        Some(Err(e)) => return error_to_term(env, &[format!("Failed to deserialize ESTree JSON: {e}")]),
+        None => return error_to_term(env, &["Empty ESTree JSON output".to_string()]),
+    };
     encode_ok(env, json)
 }
 

test/oxc_test.exs

@@ -707,6 +707,15 @@ defmodule OXCTest do
     end
   end
 
+
+  describe "parse/2 recursion depth" do
+    test "handles deeply nested expressions without recursion limit" do
+      depth = 200
+      code = "const x = " <> String.duplicate("(", depth) <> "42" <> String.duplicate(")", depth) <> ";"
+      assert {:ok, %{"type" => "Program"}} = OXC.parse(code, "deep.js")
+    end
+  end
+
   defp collect_messages(tag) do
     collect_messages(tag, [])
   end