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615a2eb9a1
There were three things wrong with the 'and', 'or', and 'nullish' tests that I added as part of #2940: 1. They were in the wrong folder (should be expressions/logical-assignment, not expressions/compound-assignment) 2. The tests for ||= and ??= on readonly accessor properties were incorrect. These assignments would short-circuit if the getter returned 1 as it previously did, so PutValue would not throw. 3. The tests for ||= and ??= on private methods were invalid, as a method always evaluates to true in a boolean context, and is not nullish, so these would always short-circuit. I've removed the invalid private method cases, fixed the readonly accessor cases, and added new templates to test the short-circuit behaviour as well as the non-short-circuit behaviour. Closes: #3413
51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/logical-assignment-private/nullish.case
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// - src/logical-assignment-private/default/getter.template
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/*---
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description: Nullish-coalescing assignment with target being a private reference (to an accessor property with getter)
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esid: sec-assignment-operators-runtime-semantics-evaluation
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features: [class-fields-private, logical-assignment-operators]
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flags: [generated]
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info: |
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sec-property-accessors-runtime-semantics-evaluation
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MemberExpression : MemberExpression `.` PrivateIdentifier
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1. Let _baseReference_ be the result of evaluating |MemberExpression|.
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2. Let _baseValue_ be ? GetValue(_baseReference_).
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3. Let _fieldNameString_ be the StringValue of |PrivateIdentifier|.
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4. Return ! MakePrivateReference(_baseValue_, _fieldNameString_).
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PutValue (V, W)
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...
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5.b. If IsPrivateReference(_V_) is *true*, then
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i. Return ? PrivateSet(_baseObj_, _V_.[[ReferencedName]], _W_).
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PrivateSet (O, P, value)
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...
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5.a. Assert: _entry_.[[Kind]] is ~accessor~.
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b. If _entry_.[[Set]] is *undefined*, throw a *TypeError* exception.
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sec-assignment-operators-runtime-semantics-evaluation
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AssignmentExpression : LeftHandSideExpression ??= AssignmentExpression
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1. Let _lref_ be the result of evaluating |LeftHandSideExpression|.
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2. Let _lval_ be ? GetValue(_lref_).
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3. If _lval_ is neither *undefined* nor *null*, return _lval_.
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...
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6. Perform ? PutValue(_lref_, _rval_).
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7. Return _rval_.
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---*/
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class C {
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get #field() {
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return null;
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}
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compoundAssignment() {
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return this.#field ??= 1;
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}
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}
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const o = new C();
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assert.throws(TypeError, () => o.compoundAssignment(), "PutValue throws when storing the result if no setter");
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