1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/non262/PrivateName/error-locations.js b/js/src/tests/non262/PrivateName/error-locations.js
new file mode 100644
index 0000000000..fb54faaefa
--- /dev/null
+++ b/js/src/tests/non262/PrivateName/error-locations.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+
+function assertLineAndColumn(str, line, column) {
+  try {
+    eval(str);
+    throw 'didn\'t syntaxerror, bad.'
+  } catch (e) {
+    assertEq(e instanceof SyntaxError, true);
+    assertEq(e.lineNumber, line);
+    assertEq(e.columnNumber, column);
+  }
+}
+
+assertLineAndColumn(`class A { g() { return this.#x; }}`, 1, 28);
+// Make sure we're reporting the first error, if there are multiple, in class
+// exit context;
+assertLineAndColumn(
+    `class A { g() { return this.#x; } y() { return       this.#z + this.#y; } }`,
+    1, 28);
+assertLineAndColumn(`this.#x`, 1, 5);
+// Make sure we're reporting the first error, if there are multiple, in
+// non-class context;
+assertLineAndColumn(`this.#x; this.#y; this.#z`, 1, 5);
+
+assertLineAndColumn(
+    `class A {
+g() { return this.#x; }}`,
+    2, 18);
+assertLineAndColumn(
+    `class A {
+
+g() { return this.#x; } y() { return this.#y; }}`,
+    3, 18);
+
+if (typeof reportCompare === 'function') reportCompare(0, 0);