Diffusion Ant (mir/inline-method) Code

ant/tests/test_map_upsert.cjs
3fa05edd2fe3mir/inline-method

test_map_upsert.cjs
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			function assert(condition, message) {
			if (!condition) throw new Error(message);
			}

			const map = new Map([["a", 1]]);
			let updateCalls = 0;
			let insertCalls = 0;

			const updated = map.upsert(
			"a",
			(value, key, receiver) => {
			updateCalls++;
			assert(value === 1, "Map update callback receives existing value");
			assert(key === "a", "Map update callback receives key");
			assert(receiver === map, "Map update callback receives receiver");
			return 2;
			},
			() => {
			insertCalls++;
			return 3;
			}
			);

			assert(updated === 2, "Map.upsert returns updated value");
			assert(map.get("a") === 2, "Map.upsert stores updated value");
			assert(updateCalls === 1, "Map update callback called once");
			assert(insertCalls === 0, "Map insert callback not called for existing key");

			const inserted = map.upsert(
			"b",
			() => {
			updateCalls++;
			return 4;
			},
			(key, receiver) => {
			insertCalls++;
			assert(key === "b", "Map insert callback receives key");
			assert(receiver === map, "Map insert callback receives receiver");
			return 3;
			}
			);

			assert(inserted === 3, "Map.upsert returns inserted value");
			assert(Array.from(map).join() === "a,2,b,3", "Map.upsert inserts missing key");
			assert(updateCalls === 1, "Map update callback not called for missing key");
			assert(insertCalls === 1, "Map insert callback called once");

			const a = {};
			const b = {};
			const weak = new WeakMap([[a, 1]]);

			assert(weak.upsert(a, value => value + 1, () => 3) === 2, "WeakMap.upsert returns updated value");
			assert(weak.get(a) === 2, "WeakMap.upsert stores updated value");
			assert(weak.upsert(b, () => 4, () => 3) === 3, "WeakMap.upsert returns inserted value");
			assert(weak.get(b) === 3, "WeakMap.upsert stores inserted value");

			console.log("Map/WeakMap upsert tests completed!");

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