Path Mapping Module Resolution (Typescript 2.0)

Question

i have a question about Path Mapping Module Resolution (Typescript 2.0).

I have a project with structure https://github.com/sanex3339/javascript-obfuscator/tree/strictNullChecks

My tsconfig.ts

{
  "compilerOptions": {
    "target": "ES6",
    "module": "commonjs",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": true,
    "noImplicitAny": true,
    "baseUrl": "src/",
    "paths": {
      "*": [
        "*"
      ]
    }
  }
}

In file https://github.com/sanex3339/javascript-obfuscator/blob/dev/src/JavaScriptObfuscator.ts i set

import { INode } from 'interfaces/nodes/INode';
import { IObfuscator } from "interfaces/IObfuscator";
import { IOptions } from 'interfaces/IOptions';
import { IOptionsPreset } from "interfaces/IOptionsPreset";

import { JavaScriptObfuscatorCLI } from 'cli/JavaScriptObfuscatorCLI';
import { Obfuscator } from 'Obfuscator';
import { Options } from 'Options';

All interfaces (.d.ts extension) will correctly imported without any errors, but on 3 last imports i get an error:

Can't resolve 'cli/JavaScriptObfuscatorCLI' in '/home/username/PhpstormProjects/javascript-obfuscator/src'

Why i got this error and why no error during interfaces imports?

Interesting, if i look at trace resolution log, i will see:

======== Resolving module 'cli/JavaScriptObfuscatorCLI' from '/home/username/PhpstormProjects/javascript-obfuscator/src/JavaScriptObfuscator.ts'. ========
Module resolution kind is not specified, using 'NodeJs'.
'baseUrl' option is set to '/home/username/PhpstormProjects/javascript-obfuscator/src', using this value to resolve non-relative module name 'cli/JavaScriptObfuscatorCLI'
'paths' option is specified, looking for a pattern to match module name 'cli/JavaScriptObfuscatorCLI'.
Module name 'cli/JavaScriptObfuscatorCLI', matched pattern '*'.
Trying substitution '*', candidate module location: 'cli/JavaScriptObfuscatorCLI'.
Loading module as file / folder, candidate module location '/home/username/PhpstormProjects/javascript-obfuscator/src/cli/JavaScriptObfuscatorCLI'.
File '/home/username/PhpstormProjects/javascript-obfuscator/src/cli/JavaScriptObfuscatorCLI.ts' exist - use it as a name resolution result.
Resolving real path for '/home/username/PhpstormProjects/javascript-obfuscator/src/cli/JavaScriptObfuscatorCLI.ts', result '/home/username/PhpstormProjects/javascript-obfuscator/src/cli/JavaScriptObfuscatorCLI.ts'
======== Module name 'cli/JavaScriptObfuscatorCLI' was successfully resolved to '/home/username/PhpstormProjects/javascript-obfuscator/src/cli/JavaScriptObfuscatorCLI.ts'. ========

Answer 1

The error you are getting is definitely not from typescript, but from webpack. Since you are using webpack 2.0 the relevant loader property you should set is the modules: property:

resolve: {
    extensions: ['.ts'],
    modules: ['./src', './node_modules']
},

I cloned your project and set the resolve property to the above setup and was able to compile the project wihtout issues.