From 88809467e8761e71483e2f4948ef411d8e447188 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Burzy=C5=84ski?= <mateuszburzynski@gmail.com>
Date: Fri, 20 Sep 2024 00:59:36 +0200
Subject: [PATCH] Fixed a crash when trying to find references on
 `NoSubstitutionTemplateLiteral` with `LiteralType` parent (#59889)

---
 src/compiler/utilities.ts                     |  4 +++-
 ...tionTemplateLiteralNoCrash1.baseline.jsonc | 23 +++++++++++++++++++
 ...fsNoSubstitutionTemplateLiteralNoCrash1.ts |  5 ++++
 3 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 tests/baselines/reference/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.baseline.jsonc
 create mode 100644 tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts

diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index c7ade289737ca..285d3156106a5 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -4227,7 +4227,9 @@ export function tryGetImportFromModuleSpecifier(node: StringLiteralLike): AnyVal
         case SyntaxKind.CallExpression:
             return isImportCall(node.parent) || isRequireCall(node.parent, /*requireStringLiteralLikeArgument*/ false) ? node.parent as RequireOrImportCall : undefined;
         case SyntaxKind.LiteralType:
-            Debug.assert(isStringLiteral(node));
+            if (!isStringLiteral(node)) {
+                break;
+            }
             return tryCast(node.parent.parent, isImportTypeNode) as ValidImportTypeNode | undefined;
         default:
             return undefined;
diff --git a/tests/baselines/reference/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.baseline.jsonc b/tests/baselines/reference/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.baseline.jsonc
new file mode 100644
index 0000000000000..170a75d22a350
--- /dev/null
+++ b/tests/baselines/reference/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.baseline.jsonc
@@ -0,0 +1,23 @@
+// === findAllReferences ===
+// === /tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts ===
+// type Test = `[|{| isInString: true |}T|]/*FIND ALL REFS*/`;
+
+  // === Definitions ===
+  // === /tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts ===
+  // type Test = `[|T|]/*FIND ALL REFS*/`;
+
+  // === Details ===
+  [
+   {
+    "containerKind": "",
+    "containerName": "",
+    "kind": "var",
+    "name": "T",
+    "displayParts": [
+     {
+      "text": "`T`",
+      "kind": "stringLiteral"
+     }
+    ]
+   }
+  ]
\ No newline at end of file
diff --git a/tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts b/tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts
new file mode 100644
index 0000000000000..e56f41ab80510
--- /dev/null
+++ b/tests/cases/fourslash/findAllRefsNoSubstitutionTemplateLiteralNoCrash1.ts
@@ -0,0 +1,5 @@
+/// <reference path='fourslash.ts' />
+
+//// type Test = `T/*1*/`;
+
+verify.baselineFindAllReferences('1');