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// |reftest| async
// This file was procedurally generated from the following sources:
// - src/async-generators/yield-spread-arr-single.case
// - src/async-generators/default/async-class-decl-private-method.template
/*---
description: Use yield value in a array spread position (Async Generator method as a ClassDeclaration element)
esid: prod-AsyncGeneratorPrivateMethod
features: [async-iteration, class-methods-private]
flags: [generated, async]
info: |
ClassElement :
PrivateMethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
---*/
var arr = ['a', 'b', 'c'];
var callCount = 0;
class C {
async *#gen() {
callCount += 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"),
"#gen does not appear as an own property on C prototype"
);
assert(
!Object.prototype.hasOwnProperty.call(C, "#gen"),
"#gen does not appear as an own property on C constructor"
);
assert(
!Object.prototype.hasOwnProperty.call(c, "#gen"),
"#gen does not appear as an own property on C instance"
);
var iter = c.gen();
iter.next(false);
var item = iter.next(arr);
item.then(({ done, value }) => {
assert.notSameValue(value, arr, 'value is a new array');
assert(Array.isArray(value), 'value is an Array exotic object');
assert.sameValue(value.length, 3)
assert.sameValue(value[0], 'a');
assert.sameValue(value[1], 'b');
assert.sameValue(value[2], 'c');
assert.sameValue(done, false);
}).then($DONE, $DONE);
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"),
"#gen does not appear as an own property on C prototype"
);
assert(
!Object.prototype.hasOwnProperty.call(C, "#gen"),
"#gen does not appear as an own property on C constructor"
);
assert(
!Object.prototype.hasOwnProperty.call(c, "#gen"),
"#gen does not appear as an own property on C instance"
);