From 2c7b13b8306899b3846333670e13fb883b0aad41 Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wewigham@microsoft.com>
Date: Thu, 14 Oct 2021 17:00:55 -0700
Subject: [PATCH] Fix explainFiles on files under nodenext with types
 references (#46367)

* Fix explainFiles on files under nodenext with types references

* Fix explainFiles crash on module nodenext
---
 src/compiler/program.ts                       |  2 +-
 ...sNodeNextWithTypesReference.baseline.jsonc | 37 +++++++++++++++
 .../explainFilesNodeNextWithTypesReference.ts | 45 +++++++++++++++++++
 3 files changed, 83 insertions(+), 1 deletion(-)
 create mode 100644 tests/baselines/reference/explainFilesNodeNextWithTypesReference.baseline.jsonc
 create mode 100644 tests/cases/fourslash/explainFilesNodeNextWithTypesReference.ts

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 045a31d4576..2db75250cce 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -685,7 +685,7 @@ namespace ts {
                 break;
             case FileIncludeKind.TypeReferenceDirective:
                 ({ pos, end } = file.typeReferenceDirectives[index]);
-                packageId = file.resolvedTypeReferenceDirectiveNames?.get(toFileNameLowerCase(file.typeReferenceDirectives[index].fileName), getModeForResolutionAtIndex(file, index))?.packageId;
+                packageId = file.resolvedTypeReferenceDirectiveNames?.get(toFileNameLowerCase(file.typeReferenceDirectives[index].fileName), file.impliedNodeFormat)?.packageId;
                 break;
             case FileIncludeKind.LibReferenceDirective:
                 ({ pos, end } = file.libReferenceDirectives[index]);
diff --git a/tests/baselines/reference/explainFilesNodeNextWithTypesReference.baseline.jsonc b/tests/baselines/reference/explainFilesNodeNextWithTypesReference.baseline.jsonc
new file mode 100644
index 00000000000..535e351c335
--- /dev/null
+++ b/tests/baselines/reference/explainFilesNodeNextWithTypesReference.baseline.jsonc
@@ -0,0 +1,37 @@
+// === /node_modules/react-hook-form/dist/index.d.ts ===
+// /// <reference types="[|react|]/*FIND ALL REFS*/" />
+// export type Foo = React.Whatever;
+// export function useForm(): any;
+
+[
+  {
+    "definition": {
+      "containerKind": "",
+      "containerName": "",
+      "fileName": "/node_modules/react-hook-form/dist/index.d.ts",
+      "kind": "string",
+      "name": "react",
+      "textSpan": {
+        "start": 22,
+        "length": 5
+      },
+      "displayParts": [
+        {
+          "text": "\"react\"",
+          "kind": "stringLiteral"
+        }
+      ]
+    },
+    "references": [
+      {
+        "textSpan": {
+          "start": 22,
+          "length": 5
+        },
+        "fileName": "/node_modules/react-hook-form/dist/index.d.ts",
+        "isWriteAccess": false,
+        "isDefinition": false
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/tests/cases/fourslash/explainFilesNodeNextWithTypesReference.ts b/tests/cases/fourslash/explainFilesNodeNextWithTypesReference.ts
new file mode 100644
index 00000000000..8b22bb50044
--- /dev/null
+++ b/tests/cases/fourslash/explainFilesNodeNextWithTypesReference.ts
@@ -0,0 +1,45 @@
+/// <reference path="fourslash.ts" />
+// @Filename: /node_modules/react-hook-form/package.json
+//// {
+////   "name": "react-hook-form",
+////   "main": "dist/index.cjs.js",
+////   "module": "dist/index.esm.js",
+////   "types": "dist/index.d.ts",
+////   "exports": {
+////     "./package.json": "./package.json",
+////     ".": {
+////       "import": "./dist/index.esm.js",
+////       "require": "./dist/index.cjs.js",
+////       "types": "./dist/index.d.ts"
+////     }
+////   }
+//// }
+
+// @Filename: /node_modules/react-hook-form/dist/index.cjs.js
+//// module.exports = {};
+
+// @Filename: /node_modules/react-hook-form/dist/index.esm.js
+//// export function useForm() {}
+
+// @Filename: /node_modules/react-hook-form/dist/index.d.ts
+//// /// <reference types="react/**/" />
+//// export type Foo = React.Whatever;
+//// export function useForm(): any;
+
+// @Filename: /node_modules/react/index.d.ts
+//// declare namespace JSX {}
+//// declare namespace React { export interface Whatever {} }
+
+// @Filename: /tsconfig.json
+//// {
+////     "compilerOptions": {
+////         "module": "nodenext",
+////         "explainFiles": true
+////     }
+////     "files": ["./index.ts"]
+//// }
+
+// @Filename: /index.ts
+//// import { useForm } from "react-hook-form";
+
+verify.baselineFindAllReferences("");
\ No newline at end of file