feat: add support for building on Windows

package.json

@@ -14,7 +14,7 @@
 		"clean": "rimraf dist",
 		"lint": "tsc --noEmit && eslint \"src/**/*.ts\" --color",
 		"prettier": "prettier --write '{src,test,documentation}/**/*.{js,ts,json,html,xml,css,md}'",
-		"test": "NODE_ENV=TEST ava",
+		"test": "ava",
 		"prebuild": "npm run clean",
 		"build": "npm run rollup",
 		"watch": "npm run rollup -- --watch",
@@ -90,6 +90,7 @@
 		"@wessberg/di": "2.0.3",
 		"@wessberg/pointer-events": "1.0.9",
 		"@wessberg/stringutil": "1.0.19",
+		"crosspath": "0.0.9",
 		"Base64": "1.1.0",
 		"blob-polyfill": "5.0.20210201",
 		"browserslist": "4.17.1",

src/build/build.ts

@@ -6,7 +6,7 @@ import {ZLIB_OPTIONS} from "./options/zlib-options";
 import {PolyfillFeature} from "../polyfill/polyfill-feature";
 import {build as esbuild} from "esbuild";
 import {tmpdir} from "os";
-import {join} from "path";
+import {join, normalize} from "crosspath";
 import {unlinkSync, writeFileSync} from "fs";
 import {transform} from "@swc/core";
 import {REGENERATOR_SOURCE, REGENERATOR_SOURCE_MINIFIED} from "../constant/regenerator-source";
@@ -37,7 +37,7 @@ function stringifyPolyfillFeature(feature: PolyfillFeature): string {
 }
 
 export async function build({paths, features, ecmaVersion, context, sourcemap = false, minify = false}: BuildOptions): Promise<BuildResult> {
-	const entryText = paths.map(path => `import "${path}";`).join("\n");
+	const entryText = paths.map(path => `import "${normalize(path)}";`).join("\n");
 
 	// Generate the intro text
 	const polyfillsAppliedText = features.length < 1 ? `No polyfills applied` : `Polyfills applied (in order): ${features.map(stringifyPolyfillFeature).join(", ")}`;

src/common/lib/file-system/real-file-system.ts

@@ -1,6 +1,6 @@
 import {FileSystem} from "./file-system";
 import {promises} from "fs";
-import {dirname} from "path";
+import {dirname} from "crosspath";
 
 export const realFileSystem: FileSystem = {
 	async exists(path: string): Promise<boolean> {

src/constant/constant.ts

@@ -1,6 +1,6 @@
 import {IConstant} from "./i-constant";
 import tempDirectory from "temp-dir";
-import {join} from "path";
+import {join} from "crosspath";
 import {ALL_CONTEXTS, WINDOW_CONTEXT, WINDOW_NODE_CONTEXT, WINDOW_WORKER_CONTEXT} from "../polyfill/polyfill-context";
 import pkg from "../../package.json";
 import {booleanize} from "../api/util";

src/service/polyfill-builder/polyfill-builder-service.ts

@@ -1,7 +1,7 @@
 import {IPolyfillBuilderService} from "./i-polyfill-builder-service";
 import {constant} from "../../constant/constant";
 import {PolyfillFeature} from "../../polyfill/polyfill-feature";
-import {join} from "path";
+import {join} from "crosspath";
 import {ICompressedPolyfillSetResult} from "./i-compressed-polyfill-set-result";
 import {sync} from "find-up";
 import {build} from "../../build/build";

src/service/registry/cache-registry/cache-registry-service.ts

@@ -1,7 +1,7 @@
 import {ICacheRegistryService} from "./i-cache-registry-service";
 import {PolyfillFeature, PolyfillFeatureInput} from "../../../polyfill/polyfill-feature";
 import {getPolyfillConfigChecksum, getPolyfillIdentifier, getPolyfillSetIdentifier} from "../../../util/polyfill/polyfill-util";
-import {join} from "path";
+import {join} from "crosspath";
 import {constant} from "../../../constant/constant";
 import {IMemoryRegistryService, PolyfillCachingContext} from "../polyfill-registry/i-memory-registry-service";
 import {PolyfillName} from "../../../polyfill/polyfill-name";