Mark config as non-optional in result

README.md

@@ -17,8 +17,8 @@ See the [TypeScript wiki](https://github.com/Microsoft/TypeScript/wiki/tsconfig.
 * **resolveSync(cwd: string, path?: string): string | void** Synchronous `resolve`.
 * **find(cwd: string): Promise<string | void>** Standalone behaviour of recursively resolving `tsconfig.json` upward.
 * **findSync(cwd: string): string | void** Synchronous `find`.
-* **load(cwd: string, path?: string): Promise<{ path?: string, config?: any}>** Resolve, load and parse `tsconfig.json`.
-* **loadSync(cwd: string, path?: string): { path?: string, config?: any}** Synchronous `load`.
+* **load(cwd: string, path?: string): Promise<{ path?: string, config: any }>** Resolve, load and parse `tsconfig.json`.
+* **loadSync(cwd: string, path?: string): { path?: string, config: any }** Synchronous `load`.
 * **readFile(filename: string): Promise<any>** Read a JSON file as `tsconfig.json` (strip BOM, parse JSON and support empty contents).
 * **readFileSync(filename: string): any** Synchronous `readFile`.
 * **parse(contents: string, filename: string): any** Parse file contents as `tsconfig.json` (strip BOM, parse JSON and support empty contents).

src/tsconfig.ts

@@ -7,7 +7,7 @@ import stripComments = require('strip-json-comments')
 
 export interface LoadResult {
   path?: string
-  config?: any
+  config: any
 }
 
 const CONFIG_FILENAME = 'tsconfig.json'
@@ -123,12 +123,12 @@ export function load (cwd: string, filename?: string): Promise<LoadResult> {
   return resolve(cwd, filename)
     .then<LoadResult>(path => {
       if (path == null) {
-        return Promise.resolve({
+        return Promise.resolve<LoadResult>({
           config: {}
         })
       }
 
-      return readFile(path as string).then(config => ({ config, path }))
+      return readFile(path as string).then(config => ({ path: path as string, config }))
     })
 }