vendor tsgo

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

@@ -0,0 +1,69 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+// Tests for signature help with binding pattern parameters.
+// This covers the crash fix for binding patterns and various combinations
+// as requested in the issue.
+func TestSignatureHelpBindingPattern(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `
+/**
+ * @param options An empty object binding pattern.
+ */
+function emptyObj({}) {}
+emptyObj(/*emptyObj*/)
+
+/**
+ * @param items An empty array binding pattern.
+ */
+function emptyArr([]) {}
+emptyArr(/*emptyArr*/)
+
+/**
+ * @param param An object with a and b properties.
+ */
+function nonEmptyObj({a, b}: {a: number, b: string}) {}
+nonEmptyObj(/*nonEmptyObj*/)
+
+/**
+ * @param tuple A tuple with two elements.
+ */
+function nonEmptyArr([x, y]: [number, string]) {}
+nonEmptyArr(/*nonEmptyArr*/)
+
+/**
+ * @param first The first number parameter.
+ * @param second An object with a and b properties.
+ */
+function idLeading(first: number, {a, b}: {a: number, b: string}) {}
+idLeading(123/*idLeading*/, { a: 1, b: 2 }/*bindingTrailing*/)
+
+/**
+ * @param first An object with a and b properties.
+ * @param last The last number parameter.
+ */
+function bindingLeading({a, b}: {a: number, b: string}, last: number) {}
+bindingLeading(/*bindingLeading*/{ a: 1, b: 2 }, 123 /*idTrailing*/)
+
+/**
+ * @param param1 {Object} The first parameter
+ * @param param1.a {number} Comment a
+ * @param param1.b {string} Comment b
+ * @param param2 {Object} The second parameter
+ * @param param2.c {boolean} Comment c
+ * @param param2.d {unknown} Comment d
+ */
+function multipleBindings({ a, b }, { c, d }) {}
+multipleBindings({ a: 0, b: "" }/*firstObjParam*/, { c: true, d: "" }/*secondObjParam*/)
+`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineSignatureHelp(t)
+}