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-rw-r--r--js/src/jit-test/tests/fields/private-error-location.js10
1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/fields/private-error-location.js b/js/src/jit-test/tests/fields/private-error-location.js
new file mode 100644
index 0000000000..7c784c6fb9
--- /dev/null
+++ b/js/src/jit-test/tests/fields/private-error-location.js
@@ -0,0 +1,10 @@
+// Bug 1770609 - Ensure the line number reported is correctly the source of the
+// syntax error, not just the first observation of the name.
+try {
+ eval(`class A { #declared; }
+ m.#declared;`)
+} catch (e) {
+ assertEq(e instanceof SyntaxError, true)
+ assertEq(e.lineNumber, 2);
+}
+