cls-expr-meth-static-args-trailing-comma-spread-operator.js

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// This file was procedurally generated from the following sources:

// - src/arguments/args-trailing-comma-spread-operator.case

// - src/arguments/default/cls-expr-meth-static.template

/*---

description: A trailing comma should not increase the arguments.length, using spread args (static class expression method)

esid: sec-arguments-exotic-objects

flags: [generated]

info: |

    9.4.4 Arguments Exotic Objects

    Most ECMAScript functions make an arguments object available to their code. Depending upon the

    characteristics of the function definition, its arguments object is either an ordinary object

    or an arguments exotic object.

    Trailing comma in the arguments list

    Left-Hand-Side Expressions

    Arguments :

( )

        ( ArgumentList )

        ( ArgumentList , )

    ArgumentList :

        AssignmentExpression

        ... AssignmentExpression

        ArgumentList , AssignmentExpression

        ArgumentList , ... AssignmentExpression

---*/

var arr = [2, 3];

var callCount = 0;

var C = class {

  static method() {

    assert.sameValue(arguments.length, 4);

    assert.sameValue(arguments[0], 42);

    assert.sameValue(arguments[1], 1);

    assert.sameValue(arguments[2], 2);

    assert.sameValue(arguments[3], 3);

    callCount = callCount + 1;

};

C.method(42, ...[1], ...arr,);

// Stores a reference `ref` for case evaluation

var ref = C.method;

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

reportCompare(0, 0);