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-rw-r--r--js/src/tests/non262/PrivateName/illegal-in-class-context.js32
1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/non262/PrivateName/illegal-in-class-context.js b/js/src/tests/non262/PrivateName/illegal-in-class-context.js
new file mode 100644
index 0000000000..85b34563ec
--- /dev/null
+++ b/js/src/tests/non262/PrivateName/illegal-in-class-context.js
@@ -0,0 +1,32 @@
+// |reftest| skip-if(!xulRuntime.shell)
+
+assertThrowsInstanceOf(() => eval(`class A { #x; #x; }`), SyntaxError);
+
+// No computed private fields
+assertThrowsInstanceOf(
+ () => eval(`var x = "foo"; class A { #[x] = 20; }`), SyntaxError);
+
+function assertThrowsWithMessage(f, msg) {
+ var fullmsg;
+ try {
+ f();
+ } catch (exc) {
+ if (exc.message.normalize() === msg.normalize())
+ return;
+
+ fullmsg = `Assertion failed: expected message '${msg}', got '${exc.message}'`;
+ }
+
+ if (fullmsg === undefined)
+ fullmsg = `Assertion failed: expected exception, no exception thrown`;
+
+ throw new Error(fullmsg);
+}
+
+assertThrowsWithMessage(() => eval(`class A { #x; h(o) { return !#x; }}`),
+ "invalid use of private name in unary expression without object reference");
+assertThrowsWithMessage(() => eval(`class A { #x; h(o) { return 1 + #x in o; }}`),
+ "invalid use of private name due to operator precedence");
+
+
+if (typeof reportCompare === 'function') reportCompare(0, 0);