vendor tsgo

tools/tsgo/internal/fourslash/tests/goToSourceDefinitionNestedNodeModules_test.go

@@ -0,0 +1,36 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestGoToSourceNestedNodeModules(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	// When a .d.ts file is inside nested node_modules (more than one /node_modules/
+	// segment), the findImplementationFileFromDtsFileName should bail out rather
+	// than trying to resolve, since the package name extraction may be incorrect.
+	// The module specifier path should still work though.
+	const content = `// @moduleResolution: bundler
+// @Filename: /home/src/workspaces/project/node_modules/outer/package.json
+{ "name": "outer", "main": "./index.js", "types": "./index.d.ts" }
+// @Filename: /home/src/workspaces/project/node_modules/outer/index.d.ts
+export { inner } from "./node_modules/inner/index";
+// @Filename: /home/src/workspaces/project/node_modules/outer/index.js
+export { inner } from "./node_modules/inner/index.js";
+// @Filename: /home/src/workspaces/project/node_modules/outer/node_modules/inner/package.json
+{ "name": "inner", "main": "./index.js", "types": "./index.d.ts" }
+// @Filename: /home/src/workspaces/project/node_modules/outer/node_modules/inner/index.d.ts
+export declare function inner(): string;
+// @Filename: /home/src/workspaces/project/node_modules/outer/node_modules/inner/index.js
+export function /*target*/inner() { return "ok"; }
+// @Filename: /home/src/workspaces/project/index.ts
+import { /*importName*/inner } from "outer";
+inner/*usage*/();`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineGoToSourceDefinition(t, "importName", "usage")
+}