Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
non-Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
Features:
- generators
Expected no error, got SyntaxError: Invalid expression encountered
Expected no error, got SyntaxError: Invalid expression encountered
// This file was procedurally generated from the following sources:
// - src/arguments/args-trailing-comma-single-args.case
// - src/arguments/default/cls-expr-gen-meth.template
/*---
description: A trailing comma should not increase the arguments.length, using a single arg (class expression generator method)
esid: sec-arguments-exotic-objects
features: [generators]
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 callCount = 0;
var C = class {
*method() {
assert.sameValue(arguments.length, 1);
assert.sameValue(arguments[0], 42);
callCount = callCount + 1;
}
};
C.prototype.method(42,).next();
// Stores a reference `ref` for case evaluation
var ref = C.prototype.method;
assert.sameValue(callCount, 1, 'method invoked exactly once');