From 76eb31b52fc8b392a153dcb781551ee75188d991 Mon Sep 17 00:00:00 2001
From: ymc9 <104139426+ymc9@users.noreply.github.com>
Date: Wed, 9 Sep 2026 20:39:52 -0700
Subject: [PATCH] fix(language): resolve `@uuid` version arg by name in
 validation

`_checkUuid` assumed the version was `attr.args[0]`, so a named
application like `@uuid(message: '...', version: 1)` skipped validation
entirely. Look up the arg whose resolved param is `version` and use it
for both the value and the diagnostic location.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---
 .../attribute-application-validator.ts        |  8 +++-
 .../test/attribute-application.test.ts        | 44 +++++++++++++++++++
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/packages/language/src/validators/attribute-application-validator.ts b/packages/language/src/validators/attribute-application-validator.ts
index 17d1b9904..cdb0ed969 100644
--- a/packages/language/src/validators/attribute-application-validator.ts
+++ b/packages/language/src/validators/attribute-application-validator.ts
@@ -463,9 +463,13 @@ export default class AttributeApplicationValidator implements AstValidator<Attri
 
     @check('@uuid')
     private _checkUuid(attr: AttributeApplication, accept: ValidationAcceptor) {
-        const version = getNumberLiteral(attr.args[0]?.value);
+        const versionArg = attr.args.find((arg) => arg.$resolvedParam?.name === 'version');
+        if (!versionArg) {
+            return;
+        }
+        const version = getNumberLiteral(versionArg.value);
         if (version !== undefined && version !== 4 && version !== 7) {
-            accept('error', `\`@uuid\` version must be \`4\` or \`7\``, { node: attr.args[0]! });
+            accept('error', `\`@uuid\` version must be \`4\` or \`7\``, { node: versionArg });
         }
     }
 
diff --git a/packages/language/test/attribute-application.test.ts b/packages/language/test/attribute-application.test.ts
index 190e4096f..9abe8ffe9 100644
--- a/packages/language/test/attribute-application.test.ts
+++ b/packages/language/test/attribute-application.test.ts
@@ -661,6 +661,50 @@ describe('Attribute application validation tests', () => {
                 /`@uuid` version must be `4` or `7`/,
             );
         });
+
+        it('resolves the version arg by name regardless of argument order', async () => {
+            await loadSchema(
+                `
+                datasource db {
+                    provider = 'sqlite'
+                    url      = 'file:./dev.db'
+                }
+
+                model User {
+                    id String @id @uuid(message: 'invalid uuid', version: 7)
+                }
+                `,
+            );
+
+            await loadSchemaWithError(
+                `
+                datasource db {
+                    provider = 'sqlite'
+                    url      = 'file:./dev.db'
+                }
+
+                model User {
+                    id String @id @uuid(message: 'invalid uuid', version: 1)
+                }
+                `,
+                /`@uuid` version must be `4` or `7`/,
+            );
+        });
+
+        it('does not treat a message-only arg as a version', async () => {
+            await loadSchema(
+                `
+                datasource db {
+                    provider = 'sqlite'
+                    url      = 'file:./dev.db'
+                }
+
+                model User {
+                    id String @id @uuid(message: 'invalid uuid')
+                }
+                `,
+            );
+        });
     });
 
     describe('Native type mapping attributes', () => {