From 99bdbf36745d77d6bfc6088d4082c2bae800f70c Mon Sep 17 00:00:00 2001
From: "renovate[bot]" <29139614+renovate[bot]@users.noreply.github.com>
Date: Wed, 20 May 2026 00:29:17 +0800
Subject: [PATCH] Update dependency flow-parser to v0.314.0 (#19127)

Co-authored-by: fisker <lionkay@gmail.com>
---
 package.json                                           |  2 +-
 src/language-js/parentheses/needs-parentheses.js       |  8 +++-----
 src/language-js/parse/postprocess/index.js             |  8 ++++++++
 src/language-js/print/type-parameters.js               |  2 ++
 .../flow-only/__snapshots__/format.test.js.snap        |  4 ++--
 yarn.lock                                              | 10 +++++-----
 6 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/package.json b/package.json
index 97586c46d..7663ef39f 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "fast-json-stable-stringify": "2.1.0",
     "file-entry-cache": "11.1.3",
     "find-cache-directory": "6.0.0",
-    "flow-parser": "0.312.0",
+    "flow-parser": "0.314.0",
     "get-east-asian-width": "1.6.0",
     "get-stdin": "9.0.0",
     "graphql": "16.14.0",
diff --git a/src/language-js/parentheses/needs-parentheses.js b/src/language-js/parentheses/needs-parentheses.js
index 3e4958682..971fc6f5b 100644
--- a/src/language-js/parentheses/needs-parentheses.js
+++ b/src/language-js/parentheses/needs-parentheses.js
@@ -380,12 +380,10 @@ function needsParentheses(path, options) {
         (key === "constraint" &&
           node.type === "TSConditionalType" &&
           parent.type === "TSTypeParameter") ||
-        (key === "typeAnnotation" &&
+        (key === "bound" &&
           node.type === "ConditionalTypeAnnotation" &&
-          parent.type === "TypeAnnotation" &&
-          path.grandparent.type === "TypeParameter" &&
-          path.grandparent.bound === parent &&
-          path.grandparent.usesExtendsBound)
+          parent.type === "TypeParameter" &&
+          parent.usesExtendsBound)
       ) {
         return true;
       }
diff --git a/src/language-js/parse/postprocess/index.js b/src/language-js/parse/postprocess/index.js
index 226bb95eb..671a2fd94 100644
--- a/src/language-js/parse/postprocess/index.js
+++ b/src/language-js/parse/postprocess/index.js
@@ -181,6 +181,14 @@ function postprocess(ast, options) {
             delete node.assertions;
           }
           break;
+
+        // Since flow@0.313.0, `TypeParameter.bound` is a bare type node without the `TypeAnnotation` wrapper
+        // https://github.com/facebook/flow/blob/HEAD/Changelog.md#03130
+        case "TypeParameter":
+          if (astType !== "flow" && node.bound?.type === "TypeAnnotation") {
+            node.bound = node.bound.typeAnnotation;
+          }
+          break;
       }
     },
     onLeave(node) {
diff --git a/src/language-js/print/type-parameters.js b/src/language-js/print/type-parameters.js
index a2d74fc42..5cb0159ed 100644
--- a/src/language-js/print/type-parameters.js
+++ b/src/language-js/print/type-parameters.js
@@ -161,6 +161,8 @@ function printTypeParameter(path, options, print) {
   if (node.bound) {
     if (node.usesExtendsBound) {
       parts.push(" extends ");
+    } else {
+      parts.push(": ");
     }
 
     parts.push(printTypeAnnotationProperty(path, print, "bound"));
diff --git a/tests/format/flow/type-parameters/flow-only/__snapshots__/format.test.js.snap b/tests/format/flow/type-parameters/flow-only/__snapshots__/format.test.js.snap
index f321a779a..2b0d18963 100644
--- a/tests/format/flow/type-parameters/flow-only/__snapshots__/format.test.js.snap
+++ b/tests/format/flow/type-parameters/flow-only/__snapshots__/format.test.js.snap
@@ -51,8 +51,8 @@ type A</* comment */T :string> = B;
 type A<T: string /* comment */> = B;
 type A<T: /* comment */ string> = B;
 type A<T: /* comment */ string> = B;
-type A<T /* comment */ : string> = B;
-type A<T /* comment */ : string> = B;
+type A<T: /* comment */ string> = B;
+type A<T: /* comment */ string> = B;
 type A</* comment */ T: string> = B;
 
 ================================================================================
diff --git a/yarn.lock b/yarn.lock
index f41db3fb5..2d472891b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5111,10 +5111,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"flow-parser@npm:0.312.0":
-  version: 0.312.0
-  resolution: "flow-parser@npm:0.312.0"
-  checksum: 10/b6a7224a48ff456b18e49c1a5eba560a60bd754e014312096764b9d5394776119cc7bc9fe5f2fa19b0f87a9162683daad93f4c846a89c302733f80d7db3b9fcb
+"flow-parser@npm:0.314.0":
+  version: 0.314.0
+  resolution: "flow-parser@npm:0.314.0"
+  checksum: 10/4d494c3b8433b3076674a06b3b45ffb1c92e0d4d2e6c6f1f59033579d9ffa7bfc4f07982c0341da5b85431cc4bd5941550fbd6ca3a4c5be369909970eba3f7f9
   languageName: node
   linkType: hard
 
@@ -8282,7 +8282,7 @@ __metadata:
     fast-json-stable-stringify: "npm:2.1.0"
     file-entry-cache: "npm:11.1.3"
     find-cache-directory: "npm:6.0.0"
-    flow-parser: "npm:0.312.0"
+    flow-parser: "npm:0.314.0"
     get-east-asian-width: "npm:1.6.0"
     get-port: "npm:7.2.0"
     get-stdin: "npm:9.0.0"