Re-organize types for maximum compatibility

Add shims for TypeScript's 'node' module resolution algorithm. The exports map is only used with the `node16` algorithm.

Write types in CommonJS, so they can be exported from ESM files. The other way around is prone to, at the very least, confusing warnings.

entrypoints/main.d.cts

@@ -1,2 +1,12 @@
-export {default} from './main.js';
-export * from './main.js';
+import type {TestFn} from '../types/test-fn.cjs';
+
+export * from '../types/assertions.cjs';
+export * from '../types/try-fn.cjs';
+export * from '../types/test-fn.cjs';
+export * from '../types/subscribable.cjs';
+
+/** Call to declare a test, or chain to declare hooks or test modifiers */
+declare const test: TestFn;
+
+/** Call to declare a test, or chain to declare hooks or test modifiers */
+export default test;

entrypoints/main.d.ts

@@ -1,12 +1,2 @@
-import type {TestFn} from '../types/test-fn.js';
-
-export * from '../types/assertions.js';
-export * from '../types/try-fn.js';
-export * from '../types/test-fn.js';
-export * from '../types/subscribable.js';
-
-/** Call to declare a test, or chain to declare hooks or test modifiers */
-declare const test: TestFn;
-
-/** Call to declare a test, or chain to declare hooks or test modifiers */
-export default test;
+export * from './main.cjs';
+export {default} from './main.cjs';

entrypoints/plugin.d.cts

@@ -1 +1,77 @@
-export * from './plugin.js'
+import type {URL} from 'node:url';
+
+export namespace SharedWorker {
+	export type ProtocolIdentifier = 'ava-4';
+
+	export type FactoryOptions = {
+		negotiateProtocol <Data = unknown>(supported: readonly ['ava-4']): Protocol<Data>;
+		// Add overloads for additional protocols.
+	};
+
+	export type Factory = (options: FactoryOptions) => void;
+
+	export type Protocol<Data = unknown> = {
+		readonly initialData: Data;
+		readonly protocol: 'ava-4';
+		broadcast: (data: Data) => BroadcastMessage<Data>;
+		ready: () => Protocol<Data>;
+		subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+		testWorkers: () => AsyncIterableIterator<TestWorker<Data>>;
+	};
+
+	export type BroadcastMessage<Data = unknown> = {
+		readonly id: string;
+		replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+	};
+
+	export type PublishedMessage<Data = unknown> = {
+		readonly id: string;
+		replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+	};
+
+	export type ReceivedMessage<Data = unknown> = {
+		readonly data: Data;
+		readonly id: string;
+		readonly testWorker: TestWorker;
+		reply: (data: Data) => PublishedMessage<Data>;
+	};
+
+	export type TestWorker<Data = unknown> = {
+		readonly id: string;
+		readonly file: string;
+		publish: (data: Data) => PublishedMessage<Data>;
+		subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+		teardown: (fn: (() => Promise<void>) | (() => void)) => () => Promise<void>;
+	};
+
+	export namespace Plugin {
+		export type RegistrationOptions<Identifier extends ProtocolIdentifier, Data = unknown> = {
+			readonly filename: string | URL;
+			readonly initialData?: Data;
+			readonly supportedProtocols: readonly Identifier[];
+			readonly teardown?: () => void;
+		};
+
+		export type Protocol<Data = unknown> = {
+			readonly available: Promise<void>;
+			readonly currentlyAvailable: boolean;
+			readonly protocol: 'ava-4';
+			publish: (data: Data) => PublishedMessage<Data>;
+			subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+		};
+
+		export type PublishedMessage<Data = unknown> = {
+			readonly id: string;
+			replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
+		};
+
+		export type ReceivedMessage<Data = unknown> = {
+			readonly data: Data;
+			readonly id: string;
+			reply: (data: Data) => PublishedMessage<Data>;
+		};
+	}
+}
+
+export function registerSharedWorker<Data = unknown>(options: SharedWorker.Plugin.RegistrationOptions<'ava-4', Data>): SharedWorker.Plugin.Protocol<Data>;
+// Add overloads for additional protocols.

entrypoints/plugin.d.ts

@@ -1,77 +1 @@
-import type {URL} from 'node:url';
-
-export namespace SharedWorker {
-	export type ProtocolIdentifier = 'ava-4';
-
-	export type FactoryOptions = {
-		negotiateProtocol <Data = unknown>(supported: readonly ['ava-4']): Protocol<Data>;
-		// Add overloads for additional protocols.
-	};
-
-	export type Factory = (options: FactoryOptions) => void;
-
-	export type Protocol<Data = unknown> = {
-		readonly initialData: Data;
-		readonly protocol: 'ava-4';
-		broadcast: (data: Data) => BroadcastMessage<Data>;
-		ready: () => Protocol<Data>;
-		subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-		testWorkers: () => AsyncIterableIterator<TestWorker<Data>>;
-	};
-
-	export type BroadcastMessage<Data = unknown> = {
-		readonly id: string;
-		replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-	};
-
-	export type PublishedMessage<Data = unknown> = {
-		readonly id: string;
-		replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-	};
-
-	export type ReceivedMessage<Data = unknown> = {
-		readonly data: Data;
-		readonly id: string;
-		readonly testWorker: TestWorker;
-		reply: (data: Data) => PublishedMessage<Data>;
-	};
-
-	export type TestWorker<Data = unknown> = {
-		readonly id: string;
-		readonly file: string;
-		publish: (data: Data) => PublishedMessage<Data>;
-		subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-		teardown: (fn: (() => Promise<void>) | (() => void)) => () => Promise<void>;
-	};
-
-	export namespace Plugin {
-		export type RegistrationOptions<Identifier extends ProtocolIdentifier, Data = unknown> = {
-			readonly filename: string | URL;
-			readonly initialData?: Data;
-			readonly supportedProtocols: readonly Identifier[];
-			readonly teardown?: () => void;
-		};
-
-		export type Protocol<Data = unknown> = {
-			readonly available: Promise<void>;
-			readonly currentlyAvailable: boolean;
-			readonly protocol: 'ava-4';
-			publish: (data: Data) => PublishedMessage<Data>;
-			subscribe: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-		};
-
-		export type PublishedMessage<Data = unknown> = {
-			readonly id: string;
-			replies: () => AsyncIterableIterator<ReceivedMessage<Data>>;
-		};
-
-		export type ReceivedMessage<Data = unknown> = {
-			readonly data: Data;
-			readonly id: string;
-			reply: (data: Data) => PublishedMessage<Data>;
-		};
-	}
-}
-
-export function registerSharedWorker<Data = unknown>(options: SharedWorker.Plugin.RegistrationOptions<'ava-4', Data>): SharedWorker.Plugin.Protocol<Data>;
-// Add overloads for additional protocols.
+export type * from './plugin.cjs';

index.d.ts

@@ -0,0 +1,4 @@
+// For compatibility with resolution algorithms other than Node16.
+
+export * from './entrypoints/main.cjs';
+export {default} from './entrypoints/main.cjs';

package.json

@@ -42,7 +42,8 @@
 	"files": [
 		"entrypoints",
 		"lib",
-		"types"
+		"types",
+		"*.d.ts"
 	],
 	"keywords": [
 		"🦄",

plugin.d.ts

@@ -0,0 +1,3 @@
+// For compatibility with resolution algorithms other than Node16.
+
+export * from './entrypoints/plugin.cjs';

types/test-fn.d.cts

@@ -1,6 +1,6 @@
-import type {Assertions} from './assertions.js';
-import type {Subscribable} from './subscribable.js';
-import type {TryFn} from './try-fn.js';
+import type {Assertions} from './assertions.cjs';
+import type {Subscribable} from './subscribable.cjs';
+import type {TryFn} from './try-fn.cjs';
 
 /** The `t` value passed to test & hook implementations. */
 export type ExecutionContext<Context = unknown> = {

types/try-fn.d.cts

@@ -1,4 +1,4 @@
-import type {Implementation} from './test-fn.js';
+import type {Implementation} from './test-fn.cjs';
 
 export type CommitDiscardOptions = {
 	/**