surma
d44f1d9677
Checkpoint before integration and package validation. Assisted-by: SurmAgent:unknown [read] [edit] [bash]
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
import { assert, assertThrows } from "./assert.js";
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// ToPropertyDescriptor must propagate an abrupt completion from Get(Obj, "get")
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// or Get(Obj, "set") instead of reporting the callability check.
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assertThrows(ReferenceError, () => {
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Object.create([], { x: { get get() { unresolvable; } } });
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});
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assertThrows(ReferenceError, () => {
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Object.create([], { x: { get set() { unresolvable; } } });
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});
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for (const key of ["get", "set"]) {
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const sentinel = new Error("thrown from the " + key + " accessor");
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const desc = { get [key]() { throw sentinel; } };
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let caught;
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try {
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Object.defineProperty({}, "p", desc);
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} catch (e) {
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caught = e;
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}
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assert(caught, sentinel, "abrupt completion of Get(Obj, \"" + key + "\")");
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}
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// A non-callable getter/setter still yields a TypeError.
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assertThrows(TypeError, () => Object.defineProperty({}, "p", { get: 1 }));
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assertThrows(TypeError, () => Object.defineProperty({}, "p", { set: 1 }));
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// Accessors that do return a function keep working.
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const o = {};
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Object.defineProperty(o, "p", { get get() { return () => 42; } });
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assert(o.p, 42);
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