memory.h.ts
dce8e2e6fb90master

memory.h.ts
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			export const freedSet = new Set<number>();

			const _mem: Record<number, unknown> = {};

			function fmtPtr(n: number): string {
			return '0x' + (0x100000000 + n).toString(16);
			}

			export function die(addr: number, msg: string): never {
			const bin = process.argv[1]?.split('/').pop() \|\| 'a.out';
			const pid = process.pid;
			const ptr = fmtPtr(addr);

			console.error(`${bin}(${pid}): malloc: *** error for object ${ptr}: ${msg}`);
			console.error(`${bin}(${pid}): malloc: *** set a breakpoint in malloc_error_break to debug`);
			process.exit(134);
			}

			export const mem: Record<number, unknown> = new Proxy(_mem, {
			get(target, prop) {
			const key = Number(prop);
			if (!isNaN(key) && freedSet.has(key)) {
			if (Ant.raw.stack?.includes('_free')) return target[key];
			die(key, 'use of deallocated pointer');
			}
			return target[key];
			},
			set(target, prop, value) {
			const key = Number(prop);
			if (!isNaN(key) && freedSet.has(key)) {
			die(key, 'use of deallocated pointer');
			}
			target[key] = value;
			return true;
			},
			deleteProperty(target, prop) {
			const key = Number(prop);
			if (!isNaN(key)) delete target[key];
			return true;
			}
			});

			export let brk: number = 0;
			export const arena = { mem: _mem, brk, freedSet };