Thread host.useCaseSensitiveFileNames through program and node builder into specifier generation (#37170)

Author: weswigham

src/compiler/checker.ts

@@ -4049,6 +4049,7 @@ namespace ts {
                         getSourceFiles: () => host.getSourceFiles(),
                         getCurrentDirectory: maybeBind(host, host.getCurrentDirectory),
                         getProbableSymlinks: maybeBind(host, host.getProbableSymlinks),
+                        useCaseSensitiveFileNames: maybeBind(host, host.useCaseSensitiveFileNames)
                     } : undefined },
                     encounteredError: false,
                     visitedTypes: undefined,

src/compiler/program.ts

@@ -968,7 +968,8 @@ namespace ts {
             forEachResolvedProjectReference,
             isSourceOfProjectReferenceRedirect,
             emitBuildInfo,
-            getProbableSymlinks
+            getProbableSymlinks,
+            useCaseSensitiveFileNames: () => host.useCaseSensitiveFileNames(),
         };
 
         verifyCompilerOptions();

src/compiler/types.ts

@@ -3174,8 +3174,8 @@ namespace ts {
     }
 
     // TODO: This should implement TypeCheckerHost but that's an internal type.
-    export interface Program extends ScriptReferenceHost {
-
+    export interface Program extends ScriptReferenceHost, ModuleSpecifierResolutionHost {
+        getCurrentDirectory(): string;
         /**
          * Get a list of root file names that were passed to a 'createProgram'
          */

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -1924,7 +1924,8 @@ declare namespace ts {
         /** @throws OperationCanceledException if isCancellationRequested is true */
         throwIfCancellationRequested(): void;
     }
-    export interface Program extends ScriptReferenceHost {
+    export interface Program extends ScriptReferenceHost, ModuleSpecifierResolutionHost {
+        getCurrentDirectory(): string;
         /**
          * Get a list of root file names that were passed to a 'createProgram'
          */

tests/baselines/reference/api/typescript.d.ts

@@ -1924,7 +1924,8 @@ declare namespace ts {
         /** @throws OperationCanceledException if isCancellationRequested is true */
         throwIfCancellationRequested(): void;
     }
-    export interface Program extends ScriptReferenceHost {
+    export interface Program extends ScriptReferenceHost, ModuleSpecifierResolutionHost {
+        getCurrentDirectory(): string;
         /**
          * Get a list of root file names that were passed to a 'createProgram'
          */

tests/baselines/reference/missingMemberErrorHasShortPath.errors.txt

@@ -0,0 +1,12 @@
+C:/foo/bar/Baz/src/sample.ts(1,10): error TS2724: Module '"./utils.js"' has no exported member 'exit'. Did you mean 'exist'?
+
+
+==== C:/foo/bar/Baz/src/utils.ts (0 errors) ====
+    export function exist() {}
+==== C:/foo/bar/Baz/src/sample.ts (1 errors) ====
+    import { exit } from "./utils.js";
+             ~~~~
+!!! error TS2724: Module '"./utils.js"' has no exported member 'exit'. Did you mean 'exist'?
+!!! related TS2728 C:/foo/bar/Baz/src/utils.ts:1:17: 'exist' is declared here.
+    
+    exit()

tests/baselines/reference/missingMemberErrorHasShortPath.js

@@ -0,0 +1,20 @@
+//// [tests/cases/compiler/missingMemberErrorHasShortPath.ts] ////
+
+//// [utils.ts]
+export function exist() {}
+//// [sample.ts]
+import { exit } from "./utils.js";
+
+exit()
+
+//// [utils.js]
+"use strict";
+exports.__esModule = true;
+exports.exist = void 0;
+function exist() { }
+exports.exist = exist;
+//// [sample.js]
+"use strict";
+exports.__esModule = true;
+var utils_js_1 = require("./utils.js");
+utils_js_1.exit();

tests/baselines/reference/missingMemberErrorHasShortPath.symbols

@@ -0,0 +1,11 @@
+=== C:/foo/bar/Baz/src/utils.ts ===
+export function exist() {}
+>exist : Symbol(exist, Decl(utils.ts, 0, 0))
+
+=== C:/foo/bar/Baz/src/sample.ts ===
+import { exit } from "./utils.js";
+>exit : Symbol(exit, Decl(sample.ts, 0, 8))
+
+exit()
+>exit : Symbol(exit, Decl(sample.ts, 0, 8))
+

tests/baselines/reference/missingMemberErrorHasShortPath.types

@@ -0,0 +1,12 @@
+=== C:/foo/bar/Baz/src/utils.ts ===
+export function exist() {}
+>exist : () => void
+
+=== C:/foo/bar/Baz/src/sample.ts ===
+import { exit } from "./utils.js";
+>exit : any
+
+exit()
+>exit() : any
+>exit : any
+

tests/cases/compiler/missingMemberErrorHasShortPath.ts

@@ -0,0 +1,7 @@
+// @useCaseSensitiveFileNames: false
+// @filename: C:/foo/bar/Baz/src/utils.ts
+export function exist() {}
+// @filename: C:/foo/bar/Baz/src/sample.ts
+import { exit } from "./utils.js";
+
+exit()