fix(javascript): retain private receiver and iterative disposal effects

This commit is contained in:
morluto
2026-10-24 02:47:38 +08:00
parent 0211b65a81
commit 787726817c
5 changed files with 169 additions and 36 deletions
@@ -147,3 +147,87 @@ it("retains shared child effects from selected setters", () => {
`)?.status,
).toBe("unknown");
});
it("exposes custom instanceof receivers but keeps object equality noncoercing", () => {
expect(
returned(`
const state = { value: 1, [Symbol.hasInstance]() { this.value = 2; return false; } };
const result = {} instanceof state;
return state.value;
`)?.status,
).toBe("unknown");
expect(
returned(`
const state = { value: 1 };
const target = { [Symbol.hasInstance](value) { value.value = 2; return false; } };
const result = state instanceof target;
return state.value;
`)?.status,
).toBe("unknown");
expect(
returned(`
const state = { value: 1, [Symbol.toPrimitive]() { this.value = 2; return 0; } };
const equal = state == state; const unequal = state != {};
return state.value;
`),
).toEqual({ status: "literal", value: 1 });
});
it("exposes class private storage reached by an invoked getter", () => {
expect(
returned(`
const shared = { value: 1 };
class Box { #state = shared; get trigger() { this.#state.value = 2; return 0; } }
new Box().trigger;
return shared.value;
`)?.status,
).toBe("unknown");
});
it("retains disposal of per-iteration resources through existing loop origins", () => {
expect(
returned(`
const state = { value: 1, [Symbol.dispose]() { this.value = 2; } };
for (using owned of [state]) {}
return state.value;
`)?.status,
).toBe("unknown");
});
it("does not expose a returned resource as an unchanged object snapshot", () => {
const value = returned(`
const state = { value: 1, [Symbol.dispose]() { this.value = 2; } };
using owned = state;
return state;
`);
expect(
value?.status === "object"
? value.properties.find(({ name }) => name === "value")?.value.status
: value?.status,
).toBe("unknown");
});
it("retains earlier iteration disposal uncertainty for reused outer resources", () => {
expect(
returned(`
const state = { value: 1, [Symbol.dispose]() { this.value = 2; } };
for (const index of [0, 1]) {
using owned = state;
const snapshot = state.value;
if (index === 1) return snapshot;
}
`)?.status,
).toBe("unknown");
});
it("follows superclass getter effects through the selected receiver", () => {
expect(
returned(`
const shared = { value: 1 };
class Base { get trigger2() { this.state.value = 2; return 0; } }
class Box extends Base { state = shared; get trigger() { return super.trigger2; } }
new Box().trigger;
return shared.value;
`)?.status,
).toBe("unknown");
});