From cb8a272392da6cd485bd968d67f4235125e91710 Mon Sep 17 00:00:00 2001
From: Dunqing <29533304+Dunqing@users.noreply.github.com>
Date: Fri, 21 Jun 2024 10:20:17 +0000
Subject: [PATCH] fix(isolated-declarations): cannot infer nested `as const`
 (#3807)

---
 crates/oxc_isolated_declarations/src/types.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/crates/oxc_isolated_declarations/src/types.rs b/crates/oxc_isolated_declarations/src/types.rs
index 75bac7d52ac3e..b8fd4a294f014 100644
--- a/crates/oxc_isolated_declarations/src/types.rs
+++ b/crates/oxc_isolated_declarations/src/types.rs
@@ -205,6 +205,13 @@ impl<'a> IsolatedDeclarations<'a> {
             Expression::ArrowFunctionExpression(func) => {
                 self.transform_arrow_function_to_ts_type(func)
             }
+            Expression::TSAsExpression(expr) => {
+                if expr.type_annotation.is_const_type_reference() {
+                    self.transform_expression_to_ts_type(&expr.expression)
+                } else {
+                    Some(self.ast.copy(&expr.type_annotation))
+                }
+            }
             _ => None,
         }
     }