Add TypeScript type declarations

Resolves #19

package.json

@@ -61,5 +61,8 @@
  "webpack-cli": "^3.1.2",
  "webpack-dev-server": "^3.1.10"
  },
- "dependencies": {}
+ "dependencies": {},
+ "peerDependencies": {
+ "anylogger": "^0.18.0"
+ }
 }

ulog.d.ts

@@ -0,0 +1,90 @@
+import { BaseLevels, BaseLogger } from 'anylogger'
+
+type ValueOf<T> = T[keyof T]
+
+type LevelNames = BaseLevels & {
+ assert: 0
+ dir: 0
+ table: 0
+ time: 0
+ timeEnd: 0
+ verbose: 4
+ silly: 6
+}
+
+interface LevelConstants {
+ NONE: 0
+ ERROR: 1
+ WARN: 2
+ INFO: 3
+ LOG: 4
+ DEBUG: 5
+ TRACE: 6
+}
+
+export interface Logger extends BaseLogger<LevelNames>, LevelConstants {
+
+ readonly ulog: { version: string }
+
+ /**
+ * The log level of this logger.
+ */
+ level: LogLevel
+
+ assert(...args: any[]): void
+ dir(...args: any[]): void
+ table(...args: any[]): void
+ time(...args: any[]): void
+ timeEnd(...args: any[]): void
+ verbose(message?: any, ...args: any[]): void
+ silly(message?: any, ...args: any[]): void
+}
+
+export type LogLevel = ValueOf<LevelConstants>
+
+export type LogFormatter = (logger: Logger, method: keyof LevelNames, args: any[]) => void
+
+export type LoggerExtender = (logger: Logger, parent: Logger) => void
+
+export interface ULog extends LevelConstants {
+ /**
+ * Returns a logger with the specified name. If it doesn't exist yet,
+ * it will be created.
+ */
+ (name?: string): Logger
+
+ /**
+ * The default log level.
+ */
+ level: LogLevel
+
+ /**
+ * Array of functions that will intercept calls to the logger functions to
+ * apply some formatting.
+ */
+ formats: LogFormatter[]
+
+ /**
+ * Array of functions that will be called with each new logger.
+ */
+ extends: LoggerExtender[]
+
+ /**
+ * Enables debug mode for the loggers listed in `names`.
+ */
+ enable(names: string): void
+
+ /**
+ * Tests whether the named logger is currently in debug mode.
+ */
+ enabled(name: string): true | undefined
+
+ /**
+ * Disables debug mode for all loggers.
+ */
+ disable(): void
+}
+
+declare const ulog: ULog
+
+export default ulog