1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/async-arrow-function/eval-var-scope-syntax-err.js b/js/src/tests/test262/language/expressions/async-arrow-function/eval-var-scope-syntax-err.js
new file mode 100644
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+++ b/js/src/tests/test262/language/expressions/async-arrow-function/eval-var-scope-syntax-err.js
@@ -0,0 +1,55 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/function-forms/eval-var-scope-syntax-err.case
+// - src/function-forms/error-no-strict/async-arrow-function.template
+/*---
+description: sloppy direct eval in params introduces var (async arrow function expression in sloppy code)
+esid: sec-async-arrow-function-definitions
+features: [default-parameters, async-functions]
+flags: [generated, async, noStrict]
+info: |
+    14.7 Async Arrow Function Definitions
+
+    AsyncArrowFunction :
+      ...
+      CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
+
+    AsyncConciseBody :
+      { AsyncFunctionBody }
+
+    ...
+
+    Supplemental Syntax
+
+    When processing an instance of the production AsyncArrowFunction :
+    CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody the interpretation of
+    CoverCallExpressionAndAsyncArrowHead is refined using the following grammar:
+
+    AsyncArrowHead :
+      async ArrowFormalParameters
+
+
+    
+    Runtime Semantics: IteratorBindingInitialization
+    FormalParameter : BindingElement
+
+    1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment.
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async (a = eval("var a = 42")) => {
+  
+  callCount = callCount + 1;
+};
+
+f()
+  .then(_ => {
+    throw new Test262Error('function should not be resolved');
+  }, error => assert.sameValue(error.constructor, SyntaxError))
+  .then(() => {
+    assert.sameValue(callCount, 0, 'function body is not evaluated');
+  }, $DONE)
+  .then($DONE, $DONE);