Fix tslint errors

Author: abraham

src/index.ts

@@ -8,22 +8,32 @@ export const Reflection = Object.assign(Reflect, {
 });
 
 export type Decorator = ClassDecorator | MemberDecorator;
-export type MemberDecorator = <T>(target: Target, propertyKey: PropertyKey, descriptor?: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T> | void;
+export type MemberDecorator = <T>(target: Target,
+                                  propertyKey: PropertyKey,
+                                  descriptor?: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T> | void;
 export type MetadataKey = string;
 export type MetadataValue = Function;
 export type PropertyKey = string | symbol;
 export type Target = object | Function;
 
 const Metadata = new WeakMap();
 
-export function defineMetadata(metadataKey: MetadataKey, metadataValue: MetadataValue, target: Target, propertyKey?: PropertyKey) {
+export function defineMetadata(metadataKey: MetadataKey,
+                               metadataValue: MetadataValue,
+                               target: Target, propertyKey?: PropertyKey) {
   return ordinaryDefineOwnMetadata(metadataKey, metadataValue, target, propertyKey);
 }
 
-export function decorate(decorators: ClassDecorator[], target: Function): Function
-export function decorate(decorators: MemberDecorator[], target: object, propertyKey?: PropertyKey, attributes?: PropertyDescriptor): PropertyDescriptor | undefined
-export function decorate(decorators: Decorator[], target: Target, propertyKey?: PropertyKey, attributes?: PropertyDescriptor): Function | PropertyDescriptor | undefined {
-  if (decorators.length === 0) throw new TypeError();
+export function decorate(decorators: ClassDecorator[], target: Function): Function;
+export function decorate(decorators: MemberDecorator[],
+                         target: object,
+                         propertyKey?: PropertyKey,
+                         attributes?: PropertyDescriptor): PropertyDescriptor | undefined;
+export function decorate(decorators: Decorator[],
+                         target: Target,
+                         propertyKey?: PropertyKey,
+                         attributes?: PropertyDescriptor): Function | PropertyDescriptor | undefined {
+  if (decorators.length === 0) { throw new TypeError(); }
 
   if (typeof target === 'function') {
     return decorateConstructor(decorators as ClassDecorator[], target);
@@ -61,30 +71,40 @@ function decorateConstructor(decorators: ClassDecorator[], target: Function): Fu
   return target;
 }
 
-function decorateProperty(decorators: MemberDecorator[], target: Target, propertyKey: PropertyKey, descriptor?: PropertyDescriptor): PropertyDescriptor | undefined {
+function decorateProperty(decorators: MemberDecorator[],
+                          target: Target,
+                          propertyKey: PropertyKey,
+                          descriptor?: PropertyDescriptor): PropertyDescriptor | undefined {
   decorators.reverse().forEach((decorator: MemberDecorator) => {
     descriptor = decorator(target, propertyKey, descriptor) || descriptor;
   });
   return descriptor;
 }
 
-function ordinaryDefineOwnMetadata(metadataKey: MetadataKey, metadataValue: MetadataValue, target: Target, propertyKey?: PropertyKey): void {
-  if (propertyKey && !['string', 'symbol'].includes(typeof propertyKey)) throw new TypeError();
+function ordinaryDefineOwnMetadata(metadataKey: MetadataKey,
+                                   metadataValue: MetadataValue,
+                                   target: Target,
+                                   propertyKey?: PropertyKey): void {
+  if (propertyKey && !['string', 'symbol'].includes(typeof propertyKey)) { throw new TypeError(); }
 
   (getMetadataMap(target, propertyKey) || createMetadataMap(target, propertyKey))
     .set(metadataKey, metadataValue);
 }
 
-function ordinaryGetMetadata(metadataKey: MetadataKey, target: Target, propertyKey?: PropertyKey): Function | undefined {
+function ordinaryGetMetadata(metadataKey: MetadataKey,
+                             target: Target,
+                             propertyKey?: PropertyKey): Function | undefined {
   return !!ordinaryGetOwnMetadata(metadataKey, target, propertyKey)
     ? ordinaryGetOwnMetadata(metadataKey, target, propertyKey)
     : Object.getPrototypeOf(target)
     ? ordinaryGetMetadata(metadataKey, Object.getPrototypeOf(target), propertyKey)
     : undefined;
 }
 
-function ordinaryGetOwnMetadata(metadataKey: MetadataKey, target: Target, propertyKey?: PropertyKey): Function | undefined {
-  if (target === undefined) throw new TypeError();
+function ordinaryGetOwnMetadata(metadataKey: MetadataKey,
+                                target: Target,
+                                propertyKey?: PropertyKey): Function | undefined {
+  if (target === undefined) { throw new TypeError(); }
   const metadataMap = getMetadataMap(target, propertyKey);
   return metadataMap && metadataMap.get(metadataKey);
 }