feat(outputtype): add output type for mappers

Author: Per Kristian Kummermo

src/DataMapperChain.spec.ts

@@ -1,11 +1,12 @@
 import { DataMapperChain } from "./DataMapperChain";
 import { Mappers } from "./Mappers";
-import { IDataValue, IMapper, IMapperConfig } from "./Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./Typings";
 
 const { Base64, Chunk, FromJSON, HexToFloat, HexToInt, Offset } = Mappers;
 
 class MapperMock implements IMapper {
   initParams: any = {};
+  outputType: IOutputType = IOutputType.number;
 
   constructor(params = {}) {
     this.initParams = params;

src/Typings.ts

@@ -1,11 +1,17 @@
 export type IDataValue = string | number;
+export enum IOutputType {
+  "string",
+  "number",
+  "array",
+}
 
 export interface IMapperConfig {
   id: string;
   params: any;
 }
 
 export interface IMapper {
+  outputType: IOutputType;
   transform(data: IDataValue): IDataValue;
   config(): IMapperConfig;
 }

src/mappers/Base64.ts

@@ -1,5 +1,5 @@
 import { Base64Action } from "../Config";
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IBase64Config {
   action?: Base64Action;
@@ -10,6 +10,7 @@ export class Base64 implements IMapper {
   static description: string = "Base64";
 
   name: string = "Base64";
+  outputType: IOutputType = IOutputType.string;
 
   action: Base64Action = Base64Action.DECODE;
 

src/mappers/Chunk.ts

@@ -1,4 +1,4 @@
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IChunkConfig {
   // Start-index of chunk
@@ -10,7 +10,10 @@ export interface IChunkConfig {
 export class Chunk implements IMapper {
   static id: string = "CHUNK";
   static description: string = "Chunk";
+
   name: string = "Chunk";
+  outputType: IOutputType = IOutputType.string;
+
   start: number = 0;
   size: number = 4;
 

src/mappers/FromJSON.ts

@@ -1,4 +1,4 @@
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IFromJSONConfig {
   propertyString?: string;
@@ -7,7 +7,9 @@ export interface IFromJSONConfig {
 export class FromJSON implements IMapper {
   static id: string = "FROMJSON";
   static description: string = "JSON";
+
   name: string = "JSON";
+  outputType: IOutputType = IOutputType.string;
 
   propertyString: string = "";
 

src/mappers/HexToFloat.ts

@@ -1,5 +1,5 @@
 import { Endianness } from "../Config";
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IHexToFloatConfig {
   endianness?: Endianness;
@@ -8,7 +8,9 @@ export interface IHexToFloatConfig {
 export class HexToFloat implements IMapper {
   static id: string = "HEXTOFLOAT";
   static description: string = "Hex to float";
+
   name: string = "Hex to float";
+  outputType: IOutputType = IOutputType.number;
 
   endianness: Endianness = Endianness.BIG_ENDIAN;
   hexRegExp: RegExp = new RegExp(/^[a-fxA-F0-9_]+$/);

src/mappers/HexToInt.ts

@@ -1,5 +1,5 @@
 import { Endianness } from "../Config";
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IHexToIntConfig {
   endianness?: Endianness;
@@ -9,7 +9,9 @@ export interface IHexToIntConfig {
 export class HexToInt implements IMapper {
   static id: string = "HEXTOINT";
   static description: string = "Hex to int";
+
   name: string = "Hex to int";
+  outputType: IOutputType = IOutputType.number;
 
   endianness: Endianness = Endianness.BIG_ENDIAN;
   signed: boolean = false;

src/mappers/Offset.ts

@@ -1,4 +1,4 @@
-import { IDataValue, IMapper, IMapperConfig } from "./../Typings";
+import { IDataValue, IMapper, IMapperConfig, IOutputType } from "./../Typings";
 
 export interface IOffsetConfig {
   offset?: number | string;
@@ -7,7 +7,10 @@ export interface IOffsetConfig {
 export class Offset implements IMapper {
   static id: string = "OFFSET";
   static description: string = "Offset number";
+
   name: string = "Offset";
+  outputType: IOutputType = IOutputType.number;
+
   offset: number = 0;
 
   constructor({