JSTests/test262/test/language/expressions/object/dstr/meth-dflt-obj-ptrn-rest-val-obj.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-rest-val-obj.case
// - src/dstr-binding/default/meth-dflt.template
/*---
description: Rest object contains just unextracted data (method (default parameter))
esid: sec-runtime-semantics-definemethod
es6id: 14.3.8
features: [object-rest, destructuring-binding, default-parameters]
flags: [generated]
includes: [propertyHelper.js]
info: |
    MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }

    [...]
    6. Let closure be FunctionCreate(kind, StrictFormalParameters,
       FunctionBody, scope, strict). If functionPrototype was passed as a
       parameter then pass its value as the functionPrototype optional argument
       of FunctionCreate.
    [...]

    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 callCount = 0;
var obj = {
  method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
    assert.sameValue(rest.a, undefined);
    assert.sameValue(rest.b, undefined);

    verifyProperty(rest, "x", {
      enumerable: true,
      writable: true,
      configurable: true,
      value: 1
    });

    verifyProperty(rest, "y", {
      enumerable: true,
      writable: true,
      configurable: true,
      value: 2
    });
    callCount = callCount + 1;
  }
};

obj.method();
assert.sameValue(callCount, 1, 'method invoked exactly once');