From 6212132b835145b1a8fd49982680ac668caf3ddc Mon Sep 17 00:00:00 2001
From: TypeScript Bot <typescriptbot@microsoft.com>
Date: Tue, 20 Aug 2024 05:20:46 +0000
Subject: [PATCH] Update LKG

---
 lib/typescript.js | 51 ++++++++++++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 18 deletions(-)

diff --git a/lib/typescript.js b/lib/typescript.js
index dab9aea778086..4dae4289c3c6d 100644
--- a/lib/typescript.js
+++ b/lib/typescript.js
@@ -179399,13 +179399,13 @@ function pasteEditsProvider(targetFile, pastedText, pasteLocations, copiedFrom,
 function pasteEdits(targetFile, pastedText, pasteLocations, copiedFrom, host, preferences, formatContext, cancellationToken, changes) {
   let actualPastedText;
   if (pastedText.length !== pasteLocations.length) {
-    actualPastedText = pastedText.length === 1 ? pastedText : [pastedText.join("\n")];
+    actualPastedText = pastedText.length === 1 ? pastedText[0] : pastedText.join(getNewLineOrDefaultFromHost(formatContext.host, formatContext.options));
   }
   const statements = [];
   let newText = targetFile.text;
   for (let i = pasteLocations.length - 1; i >= 0; i--) {
     const { pos, end } = pasteLocations[i];
-    newText = actualPastedText ? newText.slice(0, pos) + actualPastedText[0] + newText.slice(end) : newText.slice(0, pos) + pastedText[i] + newText.slice(end);
+    newText = actualPastedText ? newText.slice(0, pos) + actualPastedText + newText.slice(end) : newText.slice(0, pos) + pastedText[i] + newText.slice(end);
   }
   let importAdder;
   Debug.checkDefined(host.runWithTemporaryFileUpdate).call(host, targetFile.fileName, newText, (updatedProgram, originalProgram, updatedFile) => {
@@ -179436,22 +179436,37 @@ function pasteEdits(targetFile, pastedText, pasteLocations, copiedFrom, host, pr
         preferences,
         formatContext
       };
-      forEachChild(updatedFile, function cb(node) {
-        if (isIdentifier(node) && !(originalProgram == null ? void 0 : originalProgram.getTypeChecker().resolveName(
-          node.text,
-          node,
-          -1 /* All */,
-          /*excludeGlobals*/
-          false
-        ))) {
-          importAdder.addImportForUnresolvedIdentifier(
-            context,
+      let offset = 0;
+      pasteLocations.forEach((location, i) => {
+        const oldTextLength = location.end - location.pos;
+        const textToBePasted = actualPastedText ?? pastedText[i];
+        const startPos = location.pos + offset;
+        const endPos = startPos + textToBePasted.length;
+        const range = { pos: startPos, end: endPos };
+        offset += textToBePasted.length - oldTextLength;
+        const enclosingNode = findAncestor(
+          getTokenAtPosition(context.sourceFile, range.pos),
+          (ancestorNode) => rangeContainsRange(ancestorNode, range)
+        );
+        if (!enclosingNode) return;
+        forEachChild(enclosingNode, function importUnresolvedIdentifiers(node) {
+          const isImportCandidate = isIdentifier(node) && rangeContainsPosition(range, node.getStart(updatedFile)) && !(updatedProgram == null ? void 0 : updatedProgram.getTypeChecker().resolveName(
+            node.text,
             node,
-            /*useAutoImportProvider*/
-            true
-          );
-        }
-        node.forEachChild(cb);
+            -1 /* All */,
+            /*excludeGlobals*/
+            false
+          ));
+          if (isImportCandidate) {
+            return importAdder.addImportForUnresolvedIdentifier(
+              context,
+              node,
+              /*useAutoImportProvider*/
+              true
+            );
+          }
+          node.forEachChild(importUnresolvedIdentifiers);
+        });
       });
     }
     importAdder.writeFixes(changes, getQuotePreference(copiedFrom ? copiedFrom.file : targetFile, preferences));
@@ -179463,7 +179478,7 @@ function pasteEdits(targetFile, pastedText, pasteLocations, copiedFrom, host, pr
     changes.replaceRangeWithText(
       targetFile,
       { pos: paste.pos, end: paste.end },
-      actualPastedText ? actualPastedText[0] : pastedText[i]
+      actualPastedText ?? pastedText[i]
     );
   });
 }