vendor tsgo

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

@@ -0,0 +1,58 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestGoToSourceNestedScopeShadowing(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	// findDeclarationNodesByName should only match top-level/exported declarations,
+	// not nested locals that happen to share the same name. Here "helper" is
+	// exported at the top level, but there's also a local "helper" variable inside
+	// a function body. We should navigate to the exported function, not the local.
+	const content = `// @moduleResolution: bundler
+// @Filename: /home/src/workspaces/project/node_modules/pkg/package.json
+{ "name": "pkg", "main": "./index.js", "types": "./index.d.ts" }
+// @Filename: /home/src/workspaces/project/node_modules/pkg/index.d.ts
+export declare function helper(): string;
+// @Filename: /home/src/workspaces/project/node_modules/pkg/index.js
+export function /*targetHelper*/helper() { return "ok"; }
+function unrelated() {
+    const helper = "shadow";
+    return helper;
+}
+// @Filename: /home/src/workspaces/project/index.ts
+import { /*importHelper*/helper } from "pkg";
+helper/*usage*/();`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineGoToSourceDefinition(t, "importHelper", "usage")
+}
+
+func TestGoToSourceNestedClassShadowing(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	// A class "Widget" is exported at the top level, and there's also a local
+	// class "Widget" inside a function. We should only navigate to the exported one.
+	const content = `// @moduleResolution: bundler
+// @Filename: /home/src/workspaces/project/node_modules/pkg/package.json
+{ "name": "pkg", "main": "./index.js", "types": "./index.d.ts" }
+// @Filename: /home/src/workspaces/project/node_modules/pkg/index.d.ts
+export declare class Widget {}
+// @Filename: /home/src/workspaces/project/node_modules/pkg/index.js
+export class /*targetWidget*/Widget {}
+function factory() {
+    class Widget { constructor() { this.local = true; } }
+    return new Widget();
+}
+// @Filename: /home/src/workspaces/project/index.ts
+import { /*importWidget*/Widget } from "pkg";
+new Widget();`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineGoToSourceDefinition(t, "importWidget")
+}