summaryrefslogtreecommitdiff
path: root/test/language/function-code/each-param-has-own-non-shared-eval-scope.js
blob: d165776195c2122a9f979f87a7b0754bf57339d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
// Copyright (C) 2017 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-function-definitions-runtime-semantics-iteratorbindinginitialization
description: >
  A new declarative environment is created, from the originalEnv, for each
  parameter, and paramVarEnv is not shared.
info: |
  Runtime Semantics: IteratorBindingInitialization

  FormalParameter : BindingElement

  ...
  6. Let paramVarEnv be NewDeclarativeEnvironment(originalEnv).
  ...

features: [arrow-function, default-parameters]
---*/

var y;
function f(a = eval("var x = 1; y = 42; x"), b = eval("x")) {}

assert.throws(ReferenceError, () => {
  f();
});

assert.sameValue(y, 42);