fix flow types

Author: Sebastian McKenzie

src/cli/commands/install.js

@@ -108,7 +108,7 @@ export class Install {
         let json = await fs.readJson(loc);
         Object.assign(this.resolutions, json.resolutions);
 
-        let pushDeps = (depType, hint, ignore) => {
+        let pushDeps = (depType, { hint, ignore, optional }) => {
           let depMap = json[depType];
           for (let name in depMap) {
             if (excludeNames.indexOf(name) >= 0) continue;
@@ -122,7 +122,7 @@ export class Install {
 
             this.rootPatternsToOrigin[pattern] = depType;
             patterns.push(pattern);
-            deps.push({ pattern, registry, ignore, hint });
+            deps.push({ pattern, registry, ignore, hint, optional });
           }
         };
 

src/cli/commands/why.js

@@ -16,8 +16,9 @@ import { Install } from "./install.js";
 import Lockfile from "../../lockfile/index.js";
 import * as fs from "../../util/fs.js";
 
-let emoji = require("node-emoji");
-let path  = require("path");
+let invariant = require("invariant");
+let emoji     = require("node-emoji");
+let path      = require("path");
 
 async function cleanQuery(config: Config, query: string): Promise<string> {
   // if a location was passed then turn it into a hash query
@@ -75,12 +76,16 @@ export async function run(
     return;
   }
 
-  let matchPatterns = match.pkg.reference.patterns;
+  let matchRef = match.pkg.reference;
+  invariant(matchRef, "expected reference");
+
+  let matchPatterns = matchRef.patterns;
+  let matchRequests = matchRef.requests;
 
   let reasons = [];
 
   // reason: dependency of these modules
-  for (let request of match.pkg.reference.requests) {
+  for (let request of matchRequests) {
     let parentRequest = request.parentRequest;
     if (!parentRequest) continue;