From 344d921fea0b86a0a00e60bfbbb242d2dadeff6a Mon Sep 17 00:00:00 2001
From: luo2430 <luo2430@qq.com>
Date: Tue, 14 Jul 2026 17:58:11 +0800
Subject: [PATCH] feat(keep-sorted): support `as const` expressions

Extend keep-sorted to handle TSAsExpression nodes, enabling sorting
of objects and arrays annotated with `as const` (e.g. `const x = { ... } as const`).

Also add test coverage for:
- `export const` with `as const`
- `const` with `as const` (no export)
- `export const` with `satisfies`
---
 src/commands/keep-sorted.test.ts | 66 ++++++++++++++++++++++++++++++++
 src/commands/keep-sorted.ts      |  7 ++--
 2 files changed, 70 insertions(+), 3 deletions(-)

diff --git a/src/commands/keep-sorted.test.ts b/src/commands/keep-sorted.test.ts
index ba1c870..0a5f251 100644
--- a/src/commands/keep-sorted.test.ts
+++ b/src/commands/keep-sorted.test.ts
@@ -427,4 +427,70 @@ run(
     `,
     errors: ['command-fix'],
   },
+  {
+    description: 'export const with as const',
+    code: $`
+      /// keep-sorted
+      export const statusMap = {
+        timeout: 'timeout',
+        rejected: 'rejected',
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+      } as const;
+    `,
+    output: $`
+      /// keep-sorted
+      export const statusMap = {
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+        rejected: 'rejected',
+        timeout: 'timeout',
+      } as const;
+    `,
+    errors: ['command-fix'],
+  },
+  {
+    description: 'const with as const (no export)',
+    code: $`
+      /// keep-sorted
+      const statusMap = {
+        timeout: 'timeout',
+        rejected: 'rejected',
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+      } as const;
+    `,
+    output: $`
+      /// keep-sorted
+      const statusMap = {
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+        rejected: 'rejected',
+        timeout: 'timeout',
+      } as const;
+    `,
+    errors: ['command-fix'],
+  },
+  {
+    description: 'export const with satisfies',
+    code: $`
+      /// keep-sorted
+      export const statusMap = {
+        timeout: 'timeout',
+        rejected: 'rejected',
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+      } satisfies Record<string, string>;
+    `,
+    output: $`
+      /// keep-sorted
+      export const statusMap = {
+        fulfilled: 'fulfilled',
+        pending: 'pending',
+        rejected: 'rejected',
+        timeout: 'timeout',
+      } satisfies Record<string, string>;
+    `,
+    errors: ['command-fix'],
+  },
 )
diff --git a/src/commands/keep-sorted.ts b/src/commands/keep-sorted.ts
index 77dc77d..85fad82 100644
--- a/src/commands/keep-sorted.ts
+++ b/src/commands/keep-sorted.ts
@@ -29,6 +29,7 @@ export const keepSorted: Command = {
       'TSInterfaceBody',
       'TSTypeLiteral',
       'TSSatisfiesExpression',
+      'TSAsExpression',
     ) || ctx.findNodeBelow(
       'ExportNamedDeclaration',
       'TSInterfaceDeclaration',
@@ -49,13 +50,13 @@ export const keepSorted: Command = {
       }
       else {
         node = Array.isArray(dec.init) ? dec.init[0] : dec.init
-        if (node && node.type !== 'ObjectExpression' && node.type !== 'ArrayExpression' && node.type !== 'TSSatisfiesExpression')
+        if (node && node.type !== 'ObjectExpression' && node.type !== 'ArrayExpression' && node.type !== 'TSSatisfiesExpression' && node.type !== 'TSAsExpression')
           node = undefined
       }
     }
 
-    // Unwrap TSSatisfiesExpression
-    if (node?.type === 'TSSatisfiesExpression') {
+    // Unwrap TSSatisfiesExpression / TSAsExpression (e.g. `satisfies`, `as const`)
+    if (node?.type === 'TSSatisfiesExpression' || node?.type === 'TSAsExpression') {
       if (node.expression.type !== 'ArrayExpression' && node.expression.type !== 'ObjectExpression') {
         node = undefined
       }