Refactor largeSegmentMatcher and segmentMatcher to remove unnecessary promise handling

Author: EmilianoSanchez

src/evaluator/matchers/large_segment.ts

@@ -1,18 +1,11 @@
 import { MaybeThenable } from '../../dtos/types';
 import { ISegmentsCacheBase } from '../../storages/types';
-import { thenable } from '../../utils/promise/thenable';
 
 export function largeSegmentMatcherContext(largeSegmentName: string, storage: { largeSegments?: ISegmentsCacheBase }) {
 
   return function largeSegmentMatcher(key: string): MaybeThenable<boolean> {
     const isInLargeSegment = storage.largeSegments ? storage.largeSegments.isInSegment(largeSegmentName, key) : false;
 
-    if (thenable(isInLargeSegment)) {
-      isInLargeSegment.then(result => {
-        return result;
-      });
-    }
-
     return isInLargeSegment;
   };
 }

src/evaluator/matchers/segment.ts

@@ -1,18 +1,11 @@
 import { MaybeThenable } from '../../dtos/types';
 import { ISegmentsCacheBase } from '../../storages/types';
-import { thenable } from '../../utils/promise/thenable';
 
 export function segmentMatcherContext(segmentName: string, storage: { segments: ISegmentsCacheBase }) {
 
   return function segmentMatcher(key: string): MaybeThenable<boolean> {
     const isInSegment = storage.segments.isInSegment(segmentName, key);
 
-    if (thenable(isInSegment)) {
-      isInSegment.then(result => {
-        return result;
-      });
-    }
-
     return isInSegment;
   };
 }

src/storages/inRedis/SplitsCacheInRedis.ts

@@ -266,10 +266,10 @@ export class SplitsCacheInRedis extends AbstractSplitsCacheAsync {
       return Promise.reject(this.redisError);
     }
 
-    const splits: Record<string, ISplit | null> = {};
     const keys = names.map(name => this.keys.buildSplitKey(name));
     return this.redis.mget(...keys)
       .then(splitDefinitions => {
+        const splits: Record<string, ISplit | null> = {};
         names.forEach((name, idx) => {
           const split = splitDefinitions[idx];
           splits[name] = split && JSON.parse(split);