From 2c3a46d0aa5ac7536d6d63a71cd901885bedfebf Mon Sep 17 00:00:00 2001
From: sapphi-red <49056869+sapphi-red@users.noreply.github.com>
Date: Fri, 7 Feb 2025 23:57:09 +0000
Subject: [PATCH] feat(ecmascript): support more simple expressions by
 `ValueType::from` (#8961)

---
 .../src/constant_evaluation/value_type.rs              | 10 +++++++++-
 crates/oxc_minifier/tests/ecmascript/value_type.rs     |  6 ++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/crates/oxc_ecmascript/src/constant_evaluation/value_type.rs b/crates/oxc_ecmascript/src/constant_evaluation/value_type.rs
index 9ff470aa55e21..bba92892383b0 100644
--- a/crates/oxc_ecmascript/src/constant_evaluation/value_type.rs
+++ b/crates/oxc_ecmascript/src/constant_evaluation/value_type.rs
@@ -71,7 +71,15 @@ impl<'a> From<&Expression<'a>> for ValueType {
             Expression::ObjectExpression(_)
             | Expression::ArrayExpression(_)
             | Expression::RegExpLiteral(_)
-            | Expression::FunctionExpression(_) => Self::Object,
+            | Expression::FunctionExpression(_)
+            | Expression::ArrowFunctionExpression(_)
+            | Expression::ClassExpression(_) => Self::Object,
+            Expression::MetaProperty(meta_prop) => {
+                match (meta_prop.meta.name.as_str(), meta_prop.property.name.as_str()) {
+                    ("import", "meta") => Self::Object,
+                    _ => Self::Undetermined,
+                }
+            }
             Expression::Identifier(ident) => match ident.name.as_str() {
                 "undefined" => Self::Undefined,
                 "NaN" | "Infinity" => Self::Number,
diff --git a/crates/oxc_minifier/tests/ecmascript/value_type.rs b/crates/oxc_minifier/tests/ecmascript/value_type.rs
index 25c9716ca56da..cf0ddb880ae0f 100644
--- a/crates/oxc_minifier/tests/ecmascript/value_type.rs
+++ b/crates/oxc_minifier/tests/ecmascript/value_type.rs
@@ -30,8 +30,10 @@ fn literal_tests() {
     test("[0]", ValueType::Object);
     test("/a/", ValueType::Object);
     test("(function () {})", ValueType::Object);
-    // test("(() => {})", ValueType::Object);
-    // test("(class {})", ValueType::Object);
+    test("(() => {})", ValueType::Object);
+    test("(class {})", ValueType::Object);
+    test("import.meta", ValueType::Object);
+    // NOTE: new.target is undefined or object
 }
 
 #[test]