From 2b6c9fe2e7f3a149cfbd40f6346f51589ed5ffa8 Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Sat, 24 Jan 2026 14:17:02 +0800
Subject: [PATCH] Fix range of `IfStatement` (#18735)

---
 src/language-js/loc.js                        | 10 +++++++++-
 src/language-js/print/array.js                |  5 ++---
 .../call-or-new-expression-parentheses.js     |  2 +-
 tests/config/run-format-test.js               |  4 ----
 .../__snapshots__/format.test.js.snap         | 20 ++++++++-----------
 5 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/src/language-js/loc.js b/src/language-js/loc.js
index 88ea7cf97..5c0aebc09 100644
--- a/src/language-js/loc.js
+++ b/src/language-js/loc.js
@@ -1,5 +1,5 @@
 /**
-@import {Node} from "./types/estree.js";
+@import {Node, Comment} from "./types/estree.js";
 */
 
 const isIndex = (value) => Number.isInteger(value) && value >= 0;
@@ -21,6 +21,10 @@ function locStart(node) {
   return start;
 }
 
+/**
+@param {Node | Comment} node
+@return {number}
+*/
 function locEnd(node) {
   if (node.type === "BreakStatement" || node.type === "ContinueStatement") {
     const start = locStart(node);
@@ -35,6 +39,10 @@ function locEnd(node) {
     return locEnd(lastDeclaration);
   }
 
+  if (node.type === "IfStatement") {
+    return locEnd(node.alternate ?? node.consequent);
+  }
+
   return locEndWithFullText(node);
 }
 
diff --git a/src/language-js/print/array.js b/src/language-js/print/array.js
index 93cdde860..653289f57 100644
--- a/src/language-js/print/array.js
+++ b/src/language-js/print/array.js
@@ -168,9 +168,8 @@ function isLineAfterElementEmpty({ node }, { originalText: text }) {
       break;
     }
 
-    currentIdx = skipInlineComment(
-      text,
-      skipTrailingComment(text, currentIdx + 1),
+    currentIdx = /** @type {number} */ (
+      skipInlineComment(text, skipTrailingComment(text, currentIdx + 1))
     );
   }
 
diff --git a/src/language-js/utilities/call-or-new-expression-parentheses.js b/src/language-js/utilities/call-or-new-expression-parentheses.js
index d8113a6df..41fd24774 100644
--- a/src/language-js/utilities/call-or-new-expression-parentheses.js
+++ b/src/language-js/utilities/call-or-new-expression-parentheses.js
@@ -13,7 +13,7 @@ import getTextWithoutComments from "./get-text-without-comments.js";
 
 /**
 @param {CallOrNewExpression} callOrNewExpression
-@returns {number | void}
+@returns {number | undefined}
 */
 function getCallOrNewExpressionClosingParenthesisIndex(
   callOrNewExpression,
diff --git a/tests/config/run-format-test.js b/tests/config/run-format-test.js
index 16aa9e81b..f3107b189 100644
--- a/tests/config/run-format-test.js
+++ b/tests/config/run-format-test.js
@@ -24,10 +24,6 @@ const unstableTests = new Map(
   [
     ["js/comments/dangling_array.js", (options) => options.semi === false],
     ["js/comments/jsx.js", (options) => options.semi === false],
-    [
-      "js/comments/break-continue-statements-2.js",
-      (options) => options.semi !== false,
-    ],
     ["js/no-semi/comments.js", (options) => options.semi === false],
     ["flow/no-semi/comments.js", (options) => options.semi === false],
     ["js/ignore/semi/asi.js", (options) => options.semi === false],
diff --git a/tests/format/js/comments/__snapshots__/format.test.js.snap b/tests/format/js/comments/__snapshots__/format.test.js.snap
index dfae9738b..8c0b78952 100644
--- a/tests/format/js/comments/__snapshots__/format.test.js.snap
+++ b/tests/format/js/comments/__snapshots__/format.test.js.snap
@@ -1502,18 +1502,16 @@ for (;;) {
 =====================================output=====================================
 // https://github.com/prettier/prettier/issues/7126
 for (;;) {
-  if (condition)
-    continue
+  if (condition) continue
 
-    // breaking comment
+  // breaking comment
   ;(possibleArray || []).sort()
 }
 
 lbl: for (;;) {
-  if (condition)
-    continue lbl
+  if (condition) continue lbl
 
-    // breaking comment
+  // breaking comment
   ;(possibleArray || []).sort()
 }
 
@@ -1600,18 +1598,16 @@ for (;;) {
 =====================================output=====================================
 // https://github.com/prettier/prettier/issues/7126
 for (;;) {
-  if (condition)
-    continue;
+  if (condition) continue;
 
-    // breaking comment
+  // breaking comment
   (possibleArray || []).sort();
 }
 
 lbl: for (;;) {
-  if (condition)
-    continue lbl;
+  if (condition) continue lbl;
 
-    // breaking comment
+  // breaking comment
   (possibleArray || []).sort();
 }