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// This file was procedurally generated from the following sources:
// - src/logical-assignment-private/nullish.case
// - src/logical-assignment-private/default/data-property.template
/*---
description: Nullish-coalescing assignment with target being a private reference (to a field)
esid: sec-assignment-operators-runtime-semantics-evaluation
features: [class-fields-private, logical-assignment-operators]
flags: [generated]
info: |
sec-property-accessors-runtime-semantics-evaluation
MemberExpression : MemberExpression `.` PrivateIdentifier
1. Let _baseReference_ be the result of evaluating |MemberExpression|.
2. Let _baseValue_ be ? GetValue(_baseReference_).
3. Let _fieldNameString_ be the StringValue of |PrivateIdentifier|.
4. Return ! MakePrivateReference(_baseValue_, _fieldNameString_).
PutValue (V, W)
...
5.b. If IsPrivateReference(_V_) is *true*, then
i. Return ? PrivateSet(_baseObj_, _V_.[[ReferencedName]], _W_).
PrivateSet (O, P, value)
...
3. If _entry_.[[Kind]] is ~field~, then
a. Set _entry_.[[Value]] to _value_.
sec-assignment-operators-runtime-semantics-evaluation
AssignmentExpression : LeftHandSideExpression ??= AssignmentExpression
1. Let _lref_ be the result of evaluating |LeftHandSideExpression|.
2. Let _lval_ be ? GetValue(_lref_).
3. If _lval_ is neither *undefined* nor *null*, return _lval_.
...
6. Perform ? PutValue(_lref_, _rval_).
7. Return _rval_.
---*/
class C {
#field = null;
compoundAssignment() {
return this.#field ??= 1;
}
fieldValue() {
return this.#field;
}
}
const o = new C();
assert.sameValue(o.compoundAssignment(), 1, "The expression should evaluate to the result");
assert.sameValue(o.fieldValue(), 1, "PutValue should store the result in the private reference");
reportCompare(0, 0);
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