1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/let/dstr/ary-ptrn-rest-id-iter-val-err.js b/js/src/tests/test262/language/statements/let/dstr/ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..001cf5ea52
--- /dev/null
+++ b/js/src/tests/test262/language/statements/let/dstr/ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/let-stmt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (`let` statement)
+esid: sec-let-and-const-declarations-runtime-semantics-evaluation
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    LexicalBinding : BindingPattern Initializer
+
+    1. Let rhs be the result of evaluating Initializer.
+    2. Let value be GetValue(rhs).
+    3. ReturnIfAbrupt(value).
+    4. Let env be the running execution context's LexicalEnvironment.
+    5. Return the result of performing BindingInitialization for BindingPattern
+       using value and env as the arguments.
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       [...]
+       c. Let nextValue be IteratorValue(next).
+       d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+          true.
+       e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return poisonedValue;
+    }
+  };
+};
+
+assert.throws(Test262Error, function() {
+  let [...x] = iter;
+});
+
+reportCompare(0, 0);