dev: Fixed circular typing dependencies

Author: erayhanoglu

src/constants.ts

@@ -0,0 +1,12 @@
+export enum PoolState {
+  IDLE = 0,
+  STARTED = 1,
+  CLOSING = 2,
+  CLOSED = 3,
+}
+
+export enum ResourceState {
+  IDLE = 0,
+  ACQUIRED = 1,
+  VALIDATION = 2,
+}

src/index.ts

@@ -1,9 +1,10 @@
-import { PoolConfiguration, PoolFactory } from './definitions.js';
 import { Pool } from './pool.js';
+import { PoolConfiguration, PoolFactory } from './types.js';
 
 export * from './abort-error.js';
-export * from './definitions.js';
+export * from './constants.js';
 export * from './pool.js';
+export * from './types.js';
 
 export function createPool<T = any>(
   factory: PoolFactory<T>,

src/pool-options.ts

@@ -1,6 +1,6 @@
 import { EventEmitter } from 'events';
-import { PoolConfiguration } from './definitions.js';
-import { Pool } from './pool.js';
+import type { Pool } from './pool.js';
+import type { PoolConfiguration } from './types.js';
 
 const defaultValues = {
   acquireMaxRetries: 0,

src/pool-request.ts

@@ -1,5 +1,5 @@
-import { Callback } from './definitions.js';
-import { Pool } from './pool.js';
+import type { Pool } from './pool.js';
+import type { Callback } from './types.js';
 
 function noop() {}
 

src/pool.ts

@@ -2,16 +2,11 @@ import DoublyLinked from 'doublylinked';
 import { EventEmitter } from 'events';
 import promisify from 'putil-promisify';
 import { AbortError } from './abort-error.js';
-import {
-  Callback,
-  PoolConfiguration,
-  PoolFactory,
-  PoolState,
-  ResourceState,
-} from './definitions.js';
+import { PoolState, ResourceState } from './constants.js';
 import { PoolOptions } from './pool-options.js';
 import { PoolRequest } from './pool-request.js';
 import { ResourceItem } from './resource-item.js';
+import type { Callback, PoolConfiguration, PoolFactory } from './types.js';
 
 export class Pool<T = any> extends EventEmitter {
   private readonly _options: PoolOptions;

src/resource-item.ts

@@ -1,5 +1,5 @@
-import { DoublyLinked } from 'doublylinked';
-import { ResourceState } from './definitions.js';
+import type { DoublyLinked } from 'doublylinked';
+import { ResourceState } from './constants.js';
 
 export class ResourceItem<T> {
   state: ResourceState = ResourceState.IDLE;

src/definitions.ts renamed to src/types.ts

@@ -1,18 +1,5 @@
 export type Callback = (e?: unknown, ...args: any[]) => void;
 
-export enum PoolState {
-  IDLE = 0,
-  STARTED = 1,
-  CLOSING = 2,
-  CLOSED = 3,
-}
-
-export enum ResourceState {
-  IDLE = 0,
-  ACQUIRED = 1,
-  VALIDATION = 2,
-}
-
 export interface PoolFactory<T = any> {
   create(info?: { tries: number; maxRetries: number }): Promise<T> | T;