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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-functiondeclarationinstantiation
es6id: 9.2.12
description: >
Arguments are "unmapped" when paramater list is non-simple due to "default"
parameter
info: |
[...]
9. Let simpleParameterList be IsSimpleParameterList of formals.
[...]
22. If argumentsObjectNeeded is true, then
a. If strict is true or if simpleParameterList is false, then
i. Let ao be CreateUnmappedArgumentsObject(argumentsList).
[...]
---*/
var value;
function dflt(a, b = 0) {
arguments[0] = 2;
value = a;
}
dflt(1);
assert.sameValue(value, 1);
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