Add m-esr52 at 52.6.0

1 files changed, 73 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/destructuring-rest-identifiers.js b/js/src/jit-test/tests/basic/destructuring-rest-identifiers.js
new file mode 100644
index 000000000..437a66668
--- /dev/null
+++ b/js/src/jit-test/tests/basic/destructuring-rest-identifiers.js
@@ -0,0 +1,73 @@
+
+load(libdir + 'asserts.js');
+load(libdir + 'eqArrayHelper.js');
+
+var reserved = [
+  'break',
+  'do',
+  'in',
+  'typeof',
+  'case',
+  'else',
+  'instanceof',
+  'var',
+  'catch',
+  'export',
+  'new',
+  'void',
+  'class',
+  'extends',
+  'return',
+  'while',
+  'const',
+  'finally',
+  'super',
+  'with',
+  'continue',
+  'for',
+  'switch',
+  'debugger',
+  'function',
+  'this',
+  'delete',
+  'import',
+  'try',
+  'enum',
+  'null',
+  'true',
+  'false'
+];
+reserved.forEach(ident => {
+  assertThrowsInstanceOf(() => new Function('var [...' + ident + '] = []'), SyntaxError);
+});
+
+var strictIdentifiers = [
+  // XXX: see bug 1032150. Once fixed, please uncomment these values and
+  // remove the assertions below
+  //'yield',
+  //'let',
+  'eval',
+  'arguments',
+  'implements',
+  'interface',
+  'package',
+  'private',
+  'protected',
+  'public',
+  'static'
+];
+assertThrowsInstanceOf(() => new Function('[...yield] = []'), SyntaxError);
+assertThrowsInstanceOf(() => new Function('"use strict"; [...let] = []'), SyntaxError);
+
+strictIdentifiers.forEach(ident =>
+  assertThrowsInstanceOf(() =>
+    new Function('"use strict"; [...' + ident + '] = []'), SyntaxError));
+
+var globalEval = eval;
+strictIdentifiers.forEach(ident => {
+  globalEval(ident + ' = null');
+  assertEqArray(new Function('input', '[, ...' + ident + '] = input;' +
+    'return ' + ident
+  )([1, 2, 3]), [2, 3]);
+});
+