| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| path: language/expressions/function/dstr/dflt- |
| name: function expression (default parameter) |
| esid: sec-function-definitions-runtime-semantics-evaluation |
| features: [destructuring-binding, default-parameters] |
| info: | |
| FunctionExpression : function ( FormalParameters ) { FunctionBody } |
| |
| [...] |
| 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody, |
| scope, strict). |
| [...] |
| |
| 9.2.1 [[Call]] ( thisArgument, argumentsList) |
| |
| [...] |
| 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). |
| [...] |
| |
| 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) |
| |
| 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). |
| [...] |
| |
| 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) |
| |
| [...] |
| 23. Let iteratorRecord be Record {[[iterator]]: |
| CreateListIterator(argumentsList), [[done]]: false}. |
| 24. If hasDuplicates is true, then |
| [...] |
| 25. Else, |
| b. Let formalStatus be IteratorBindingInitialization for formals with |
| iteratorRecord and env as arguments. |
| [...] |
| ---*/ |
| |
| var f = function(/*{ elems }*/ = /*{ vals }*/) {}; |
| |
| assert.throws(/*{ error }*/, function() { |
| f(); |
| }); |