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// This file was procedurally generated from the following sources:
// - src/generators/yield-spread-arr-single.case
// - src/generators/default/class-expr-static-private-method.template
/*---
description: Use yield value in a array spread position (Static generator private method as a ClassExpression element)
esid: prod-GeneratorPrivateMethod
features: [generators, class-static-methods-private]
flags: [generated]
info: |
ClassElement :
static PrivateMethodDefinition
MethodDefinition :
GeneratorMethod
14.4 Generator Function Definitions
GeneratorMethod :
* PropertyName ( UniqueFormalParameters ) { GeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
---*/
var arr = ['a', 'b', 'c'];
var callCount = 0;
var C = class {
static *#gen() {
callCount += 1;
yield [...yield];
}
static get gen() { return this.#gen; }
}
// 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"
);
var iter = C.gen();
iter.next(false);
var item = iter.next(arr);
var value = item.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(item.done, false);
assert.sameValue(callCount, 1);
// 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"
);
reportCompare(0, 0);