feat: 支持箭头函数/模板字符串/let/const/delete/instanceof 语法

crates/oxide_vm/tests/scoping_tests.rs

@@ -0,0 +1,62 @@
+use oxide_compiler::compiler::Compiler;
+use oxide_types::value::JsValue;
+use oxide_vm::vm::Vm;
+
+fn eval(source: &str) -> Result<JsValue, String> {
+    let allocator = oxide_parser::Allocator::default();
+    let program = oxide_parser::parse(&allocator, source).map_err(|e| format!("Parse: {:?}", e))?;
+    let module = Compiler::new().compile(&program).map_err(|e| format!("Compile: {}", e))?;
+    let mut vm = Vm::new();
+    vm.run(&module)
+}
+
+#[test]
+fn let_block_scoping_outer_unchanged() {
+    let result = eval("let x = 1; { let x = 2; } x").unwrap();
+    assert_eq!(result.as_int(), 1);
+}
+
+#[test]
+fn const_reassignment_throws() {
+    let result = eval("const x = 1; x = 2");
+    assert!(result.is_err());
+    let err = result.unwrap_err();
+    assert!(err.contains("TypeError") || err.contains("constant"), "got: {}", err);
+}
+
+#[test]
+fn var_block_not_isolated() {
+    let result = eval("var x = 5; { x = 10; } x").unwrap();
+    assert_eq!(result.as_int(), 10);
+}
+
+#[test]
+fn delete_existing_property() {
+    let result = eval("var o = {a: 1}; delete o.a; o.a").unwrap();
+    assert!(result.is_undefined());
+}
+
+#[test]
+fn delete_returns_true() {
+    let result = eval("var o = {a: 1}; delete o.a").unwrap();
+    assert!(result.as_bool());
+    assert!(result.as_bool());
+}
+
+#[test]
+fn instanceof_array() {
+    let result = eval("[] instanceof Array").unwrap();
+    assert!(result.as_bool());
+}
+
+#[test]
+fn instance_not_array() {
+    let result = eval("({}) instanceof Array").unwrap();
+    assert!(!result.as_bool());
+}
+
+#[test]
+fn void_returns_undefined() {
+    let result = eval("void 0").unwrap();
+    assert!(result.is_undefined());
+}