ts: add test coverage for decorated private names

evanw · Apr 1, 2022 · 4cb292c · 4cb292c
1 parent 85f7ffa
commit 4cb292c
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/internal/js_parser/ts_parser_test.go b/internal/js_parser/ts_parser_test.go
@@ -489,6 +489,18 @@ func TestTSPrivateIdentifiers(t *testing.T) {
 	expectPrintedTS(t, "class Foo { static #foo() {} }", "class Foo {\n  static #foo() {\n  }\n}\n")
 	expectPrintedTS(t, "class Foo { static get #foo() {} }", "class Foo {\n  static get #foo() {\n  }\n}\n")
 	expectPrintedTS(t, "class Foo { static set #foo(x) {} }", "class Foo {\n  static set #foo(x) {\n  }\n}\n")
+
+	// Decorators are not valid on private members
+	expectParseErrorTS(t, "class Foo { @dec #foo }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec #foo = 1 }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec #foo() {} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec get #foo() {} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec set #foo() {x} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec static #foo }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec static #foo = 1 }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec static #foo() {} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec static get #foo() {} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
+	expectParseErrorTS(t, "class Foo { @dec static set #foo() {x} }", "<stdin>: ERROR: Expected identifier but found \"#foo\"\n")
 }
 
 func TestTSInterface(t *testing.T) {