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53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/compound-assignment-private/exp.case
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// - src/compound-assignment-private/default/data-property.template
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/*---
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description: Compound exponentiation assignment with target being a private reference (to a field)
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esid: sec-assignment-operators-runtime-semantics-evaluation
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features: [exponentiation, class-fields-private]
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flags: [generated]
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info: |
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sec-assignment-operators-runtime-semantics-evaluation
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AssignmentExpression : LeftHandSideExpression AssignmentOperator 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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...
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7. Let _r_ be ApplyStringOrNumericBinaryOperator(_lval_, _opText_, _rval_).
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8. Perform ? PutValue(_lref_, _r_).
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9. Return _r_.
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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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3. If _entry_.[[Kind]] is ~field~, then
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a. Set _entry_.[[Value]] to _value_.
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---*/
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class C {
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#field = 10;
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compoundAssignment() {
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return this.#field **= 3;
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}
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fieldValue() {
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return this.#field;
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}
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}
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const o = new C();
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assert.sameValue(o.compoundAssignment(), 1000, "The expression should evaluate to the result");
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assert.sameValue(o.fieldValue(), 1000, "PutValue should store the result in the private reference");
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