add boa-test

__lang/boa-test/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "boa-test"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+boa_engine = { version = "0.21.1", features = ["js"] }

__lang/boa-test/src/main.rs

@@ -0,0 +1,42 @@
+use boa_engine::{Context, JsResult, JsString, JsValue, NativeFunction, Source};
+use std::str::FromStr;
+
+fn main() -> JsResult<()> {
+    let js_code = r#"
+      let two = 1 + 1;
+      let definitely_not_four = two + "2";
+
+      println(definitely_not_four);
+
+      println(0.1 + 0.2);
+
+      println(Date.now(), 1, new Date()+'');
+  "#;
+
+    // Instantiate the execution context
+    let mut context = Context::default();
+
+    let println =
+        |_this: &JsValue, args: &[JsValue], _context: &mut Context| -> JsResult<JsValue> {
+            let mut vals = vec![];
+            args.iter()
+                .for_each(|arg| vals.push(arg.display().to_string()));
+            println!("{}", vals.join(" "));
+            Ok(JsValue::undefined())
+        };
+
+    _ = context.register_global_callable(
+        JsString::from_str("println").unwrap(),
+        0,
+        NativeFunction::from_copy_closure(println),
+    );
+
+    // Parse the source code
+    let result = context.eval(Source::from_bytes(js_code))?;
+
+    if !result.is_undefined() {
+        println!("{}", result.display());
+    }
+
+    Ok(())
+}