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56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/class-fields/redeclaration-symbol.case
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// - src/class-fields/default/cls-expr.template
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/*---
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description: Redeclaration of public fields with the same name (field definitions in a class expression)
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esid: prod-FieldDefinition
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features: [class]
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flags: [generated]
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includes: [propertyHelper.js, compareArray.js]
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info: |
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2.13.2 Runtime Semantics: ClassDefinitionEvaluation
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...
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30. Set the value of F's [[Fields]] internal slot to fieldRecords.
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...
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2.14 [[Construct]] ( argumentsList, newTarget)
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...
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8. If kind is "base", then
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...
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b. Let result be InitializeInstanceFields(thisArgument, F).
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...
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2.9 InitializeInstanceFields ( O, constructor )
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3. Let fieldRecords be the value of constructor's [[Fields]] internal slot.
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4. For each item fieldRecord in order from fieldRecords,
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a. If fieldRecord.[[static]] is false, then
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i. Perform ? DefineField(O, fieldRecord).
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---*/
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var x = [];
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var y = Symbol();
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var C = class {
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[y] = (x.push("a"), "old_value");
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[y] = (x.push("b"), "same_value");
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[y] = (x.push("c"), "same_value");
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}
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var c = new C();
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assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
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assert.sameValue(Object.hasOwnProperty.call(C, y), false);
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verifyProperty(c, y, {
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value: "same_value",
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enumerable: true,
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writable: true,
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configurable: true
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});
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assert(compareArray(x, ["a", "b", "c"]));
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