Diffusion Ant (bytecode) Code

ant/tests/test_gc.js
da28911c0817bytecode

test_gc.js
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			console.log('=== Testing Ant.alloc() (bdwgc) ===');
			let alloc1 = Ant.alloc();
			console.log('Initial allocation:');
			console.log(' heapSize:', alloc1.heapSize);
			console.log(' usedBytes:', alloc1.usedBytes);
			console.log(' freeBytes:', alloc1.freeBytes);
			console.log(' totalBytes:', alloc1.totalBytes);

			console.log('\n=== Creating objects to allocate memory ===');
			let arr = [];
			for (let i = 0; i < 100; i = i + 1) {
			arr.push({ value: i, name: 'item' + i });
			}
			console.log('Created array with 100 objects');

			let alloc2 = Ant.alloc();
			console.log('After allocation:');
			console.log(' heapSize:', alloc2.heapSize);
			console.log(' usedBytes:', alloc2.usedBytes);
			console.log(' totalBytes:', alloc2.totalBytes);
			console.log(' totalBytes increase:', alloc2.totalBytes - alloc1.totalBytes);

			console.log('\n=== Testing Ant.stats() ===');
			let stats1 = Ant.stats();
			console.log('Memory stats:');
			console.log(' arenaUsed:', stats1.arenaUsed);
			console.log(' cstack:', stats1.cstack);
			console.log(' gcHeapSize:', stats1.gcHeapSize);
			console.log(' gcUsedBytes:', stats1.gcUsedBytes);
			console.log(' gcFreeBytes:', stats1.gcFreeBytes);

			console.log('\n=== Testing Ant.gc() ===');
			arr = null;

			let gcResult = Ant.gc();
			console.log('GC result:');
			console.log(' heapBefore:', gcResult.heapBefore);
			console.log(' heapAfter:', gcResult.heapAfter);
			console.log(' usedBefore:', gcResult.usedBefore);
			console.log(' usedAfter:', gcResult.usedAfter);
			console.log(' freed:', gcResult.freed);
			console.log(' arenaBefore:', gcResult.arenaBefore);
			console.log(' arenaAfter:', gcResult.arenaAfter);
			console.log(' arenaFreed:', gcResult.arenaFreed);

			console.log('\n=== Testing Ant.stats() ===');
			let stats2 = Ant.stats();
			console.log('Memory stats:');
			console.log(' arenaUsed:', stats2.arenaUsed);
			console.log(' cstack:', stats2.cstack);
			console.log(' gcHeapSize:', stats2.gcHeapSize);
			console.log(' gcUsedBytes:', stats2.gcUsedBytes);
			console.log(' gcFreeBytes:', stats2.gcFreeBytes);

			console.log('\n=== Verifying memory after GC ===');
			let alloc3 = Ant.alloc();
			console.log('After GC:');
			console.log(' heapSize:', alloc3.heapSize);
			console.log(' usedBytes:', alloc3.usedBytes);
			console.log(' freeBytes:', alloc3.freeBytes);

			console.log('\n=== Testing multiple GC cycles ===');
			for (let cycle = 0; cycle < 3; cycle = cycle + 1) {
			console.log('Cycle', cycle + 1);

			let temp = [];
			for (let i = 0; i < 50; i = i + 1) {
			temp.push({ data: 'test data ' + i });
			}
			let beforeGc = Ant.alloc();
			console.log(' Before GC - usedBytes:', beforeGc.usedBytes);

			temp = null;
			let gc = Ant.gc();
			console.log(' After GC - usedAfter:', gc.usedAfter, 'freed:', gc.freed, 'arenaFreed:', gc.arenaFreed);
			}

			console.log('\n=== Testing Ant.stats() ===');
			let stats3 = Ant.stats();
			console.log('Memory stats:');
			console.log(' arenaUsed:', stats3.arenaUsed);
			console.log(' cstack:', stats3.cstack);
			console.log(' gcHeapSize:', stats3.gcHeapSize);
			console.log(' gcUsedBytes:', stats3.gcUsedBytes);
			console.log(' gcFreeBytes:', stats3.gcFreeBytes);

			console.log('\n=== Testing stats consistency ===');
			let statsA = Ant.stats();
			let allocA = Ant.alloc();
			console.log('Stats and alloc should match:');
			console.log(' stats.gcUsedBytes:', statsA.gcUsedBytes);
			console.log(' alloc.usedBytes:', allocA.usedBytes);
			console.log(' match:', statsA.gcUsedBytes === allocA.usedBytes);

			console.log('\n=== Test complete ===');

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