a41ebfc872
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Implements full class support: prototype-chain-based inheritance on JsObject, class/extends/super/static/instanceof keywords, parser and VM execution for class declarations and expressions, super() constructor calls and super.method() dispatch via dedicated SuperInfo fields (not user-observable properties), and instanceof operator with prototype chain walking. Includes depth guards, Box<JsValue> in RuntimeError::Thrown to satisfy clippy result_large_err, and 11 JS262 conformance tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
26 lines
532 B
JavaScript
26 lines
532 B
JavaScript
// Multi-level inheritance chain (A -> B -> C).
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class A {
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constructor(x) { this.x = x; }
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getX() { return this.x; }
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}
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class B extends A {
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constructor(x, y) {
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super(x);
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this.y = y;
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}
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getY() { return this.y; }
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}
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class C extends B {
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constructor(x, y, z) {
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super(x, y);
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this.z = z;
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}
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sum() { return this.getX() + this.getY() + this.z; }
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}
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var c = new C(1, 2, 3);
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console.log(c.sum());
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console.log(c instanceof A);
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console.log(c instanceof B);
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console.log(c instanceof C);
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