Export supportsAsync

Author: TooTallNate

src/index.ts

@@ -4,7 +4,7 @@ import { parseScript } from 'esprima';
 import { visit, namedTypes as n, builders as b } from 'ast-types';
 import { Context, RunningScriptOptions, runInNewContext } from 'vm';
 
-import supportsAsync from './supports-async';
+import _supportsAsync from './supports-async';
 import generatorToPromise from './generator-to-promise';
 
 /**
@@ -152,13 +152,14 @@ namespace degenerator {
 			RunningScriptOptions {
 		sandbox?: Context;
 	}
+	export const supportsAsync = _supportsAsync;
 	export function compile<T extends Function>(
 		code: string,
 		returnName: string,
 		names: DegeneratorNames,
 		options: CompileOptions = {}
 	): T {
-		const output = supportsAsync ? 'async' : 'generator';
+		const output = _supportsAsync ? 'async' : 'generator';
 		const compiled = degenerator(code, names, { ...options, output });
 		const fn = runInNewContext(
 			`${compiled};${returnName}`,

test/test.ts

@@ -1,9 +1,15 @@
 import fs from 'fs';
 import path from 'path';
 import assert from 'assert';
-import degenerator, { compile } from '../src';
+import degenerator, { compile, supportsAsync } from '../src';
 
 describe('degenerator()', () => {
+	describe('`supportsAsync`', () => {
+		it('should export boolean `supportsAsync`', () => {
+			assert.equal(typeof supportsAsync, 'boolean');
+		});
+	});
+
 	describe('"async" output', () => {
 		it('should support "async" output functions', () => {
 			function aPlusB(a: () => string, b: () => string): string {