| // 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); |
