Reorganize

runtime/runcode.ts

@@ -0,0 +1,61 @@
+// deno-lint-ignore no-explicit-any
+const builtins: any = {};
+
+// deno-lint-ignore no-explicit-any
+const G: any = {};
+
+// deno-lint-ignore no-explicit-any
+export const addToContext = (name: string, value: any) => {
+	builtins[name] = value;
+}
+
+export const getBuiltins = () => {
+	return builtins;
+}
+
+// deno-lint-ignore no-explicit-any
+const AsyncFunction = (async function () {}).constructor as any;
+
+addToContext("eval", eval);
+
+const context = new Proxy(G, {
+	get: (target, prop) => {
+		if (prop in builtins) {
+			return builtins[prop as keyof typeof builtins];
+		}
+		return target[prop];
+	},
+	set: (target, prop, value) => {
+		target[prop] = value;
+		return true;
+	},
+	has: () => {
+		return true;
+	},
+});
+
+export const runCode = async (code: string) => {
+	try {
+		new AsyncFunction(code);
+	} catch (err) {
+		throw err;
+	}
+	const fn = new AsyncFunction("context", `
+		with (context) {
+			${code}
+		}
+	`);
+	return await fn(context);
+}
+
+export const evalCode = (code: string) => {
+	try {
+		return runCode(`return eval("(${code.replaceAll('"', '\\"')})");`);
+	} catch (err) {
+		if (err.name === "SyntaxError") {
+			return runCode(`return eval("${code.replaceAll('"', '\\"')}");`);
+		} else {
+			throw err;
+		}
+	}
+}