Merge pull request #27 from parcel-bundler/fix-types

Improve types

Author: DeMoorJasper

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@parcel/source-map",
-  "version": "2.0.0-alpha.4.12",
+  "version": "2.0.0-alpha.4.13",
   "main": "./dist/node.js",
   "browser": "./dist/wasm-browser.js",
   "license": "MIT",

src/types.js

@@ -20,13 +20,13 @@ export type ParsedMap = {|
 |};
 
 export type VLQMap = {
-  sources: Array<string>,
-  sourcesContent?: Array<string | null>,
-  names: Array<string>,
-  mappings: string,
-  version?: number,
-  file?: string,
-  sourceRoot?: string,
+  +sources: $ReadOnlyArray<string>,
+  +sourcesContent?: $ReadOnlyArray<string | null>,
+  +names: $ReadOnlyArray<string>,
+  +mappings: string,
+  +version?: number,
+  +file?: string,
+  +sourceRoot?: string,
   ...
 };