// This file was procedurally generated from the following sources:
// - src/generators/yield-spread-obj.case
// - src/generators/default/class-decl-private-method.template
/*---
description: Use yield value in a object spread position (Generator private method as a ClassDeclaration element)
esid: prod-GeneratorPrivateMethod
features: [object-spread, generators, class-methods-private]
flags: [generated]
info: |
ClassElement :
PrivateMethodDefinition
MethodDefinition :
GeneratorMethod
14.4 Generator Function Definitions
GeneratorMethod :
* PropertyName ( UniqueFormalParameters ) { GeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
---*/
var callCount = 0;
class C {
*#gen() {
callCount += 1;
yield {
...yield,
y: 1,
...yield yield,
};
}
get gen() { return this.#gen; }
}
const c = new C();
// Test the private fields do not appear as properties before set to value
assert(
!Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
"Private field '#gen' does not appear as an own property on C prototype"
);
assert(
!Object.prototype.hasOwnProperty.call(C, "#gen"),
"Private field '#gen' does not appear as an own property on C constructor"
);
assert(
!Object.prototype.hasOwnProperty.call(c, "#gen"),
"Private field '#gen' does not appear as an own property on C instance"
);
var iter = c.gen();
iter.next();
iter.next({ x: 42 });
iter.next({ x: 'lol' });
var item = iter.next({ y: 39 });
assert.sameValue(item.value.x, 42);
assert.sameValue(item.value.y, 39);
assert.sameValue(Object.keys(item.value).length, 2);
assert.sameValue(item.done, false);
assert.sameValue(callCount, 1);
// Test the private fields do not appear as properties after set to value
assert(
!Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
"Private field '#gen' does not appear as an own property on C prototype"
);
assert(
!Object.prototype.hasOwnProperty.call(C, "#gen"),
"Private field '#gen' does not appear as an own property on C constructor"
);
assert(
!Object.prototype.hasOwnProperty.call(c, "#gen"),
"Private field '#gen' does not appear as an own property on C instance"
);