// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: >
  Extension not observed when creation of variable binding would produce an
  early error (Block statement)
template: func
info: |
    B.3.3.1 Changes to FunctionDeclarationInstantiation

    [...]
    ii. If replacing the FunctionDeclaration f with a VariableStatement that
        has F as a BindingIdentifier would not produce any Early Errors for
        func and F is not an element of BoundNames of argumentsList, then
    [...]
---*/

//- before
assert.throws(ReferenceError, function() {
  f;
}, 'An initialized binding is not created prior to evaluation');
assert.sameValue(
  typeof f,
  'undefined',
  'An uninitialized binding is not created prior to evaluation'
);

{
let f = 123;
//- after
}

assert.throws(ReferenceError, function() {
  f;
}, 'An initialized binding is not created following evaluation');
assert.sameValue(
  typeof f,
  'undefined',
  'An uninitialized binding is not created following evaluation'
);