Update flow to 0.180.0 (#8201)

.flowconfig

@@ -36,4 +36,4 @@ untyped-import
 untyped-type-import
 
 [version]
-0.176.3
+0.180.0

package.json

@@ -43,7 +43,7 @@
     "@types/node": "^15.12.4",
     "cross-env": "^7.0.0",
     "eslint": "^7.20.0",
-    "flow-bin": "0.176.3",
+    "flow-bin": "0.180.0",
     "glob": "^7.1.6",
     "gulp": "^4.0.2",
     "gulp-babel": "^8.0.0",
@@ -69,4 +69,4 @@
     "type": "opencollective",
     "url": "https://opencollective.com/parcel"
   }
-}
+}

packages/core/cache/src/IDBCache.browser.js

@@ -31,7 +31,9 @@ export class IDBCache implements Cache {
   }
 
   serialize(): {||} {
-    return {...null};
+    return {
+      /*::...null*/
+    };
   }
 
   static deserialize(): IDBCache {

packages/core/core/src/Environment.js

@@ -31,7 +31,9 @@ export function createEnvironment({
   shouldScopeHoist = false,
   sourceMap,
   loc,
-}: EnvironmentOpts = {}): Environment {
+}: EnvironmentOpts = {
+  /*::...null*/
+}): Environment {
   if (context == null) {
     if (engines?.node) {
       context = 'node';

packages/core/core/src/Parcel.js

@@ -248,7 +248,9 @@ export default class Parcel {
   }: {|
     signal?: AbortSignal,
     startTime?: number,
-  |} = {}): Promise<BuildEvent> {
+  |} = {
+    /*::...null*/
+  }): Promise<BuildEvent> {
     this.#requestTracker.setSignal(signal);
     let options = nullthrows(this.#resolvedOptions);
     try {

packages/core/core/src/requests/ParcelConfigRequest.js

@@ -340,7 +340,9 @@ export async function processConfig(
             configFile.resolveFrom,
           ),
         }
-      : {...null}),
+      : {
+          /*::...null*/
+        }),
     resolvers: processPipeline(
       options,
       configFile.resolvers,

packages/core/core/src/requests/TargetRequest.js

@@ -478,14 +478,14 @@ export class TargetResolver {
     // If there is a separate `browser` target, or an `engines.node` field but no browser targets, then
     // the `main` and `module` targets refer to node, otherwise browser.
     let mainContext =
-      pkg.browser ?? pkgTargets.browser ?? (node != null && !browsers)
+      pkg.browser ?? pkgTargets.browser ?? (node != null && browsers == null)
         ? 'node'
         : 'browser';
     let moduleContext =
       pkg.browser ?? pkgTargets.browser ? 'browser' : mainContext;
 
     let defaultEngines = this.options.defaultTargetOptions.engines;
-    let context = browsers ?? !node ? 'browser' : 'node';
+    let context = browsers ?? node == null ? 'browser' : 'node';
     if (context === 'browser' && pkgEngines.browsers == null) {
       pkgEngines = {
         ...pkgEngines,

packages/core/core/src/resolveOptions.js

@@ -173,7 +173,9 @@ export default async function resolveOptions(
       publicUrl,
       ...(distDir != null
         ? {distDir: toProjectPath(projectRoot, distDir)}
-        : {...null}),
+        : {
+            /*::...null*/
+          }),
       engines: initialOptions?.defaultTargetOptions?.engines,
       outputFormat: initialOptions?.defaultTargetOptions?.outputFormat,
       isLibrary: initialOptions?.defaultTargetOptions?.isLibrary,

packages/core/types/index.js

@@ -258,7 +258,13 @@ export type PackageJSON = {
   types?: FilePath,
   browser?: FilePath | {[FilePath]: FilePath | boolean, ...},
   source?: FilePath | Array<FilePath>,
-  alias?: {[PackageName | FilePath | Glob]: PackageName | FilePath, ...},
+  alias?: {
+    [PackageName | FilePath | Glob]:
+      | PackageName
+      | FilePath
+      | {|global: string|},
+    ...
+  },
   browserslist?: Array<string> | {[string]: Array<string>},
   engines?: Engines,
   targets?: {[string]: PackageTargetDescriptor, ...},

packages/core/workers/src/process/ProcessChild.js

@@ -37,6 +37,7 @@ export default class ProcessChild implements ChildImpl {
     let processSend = nullthrows(process.send).bind(process);
     processSend(serialize(data).toString('base64'), err => {
       if (err && err instanceof Error) {
+        // $FlowFixMe[prop-missing]
         if (err.code === 'ERR_IPC_CHANNEL_CLOSED') {
           // IPC connection closed
           // no need to keep the worker running if it can't send or receive data

packages/transformers/html/src/inline.js

@@ -57,14 +57,15 @@ export default function extractInlineAssets(
 
           let outputFormat = 'global';
           let sourceType = 'script';
-          if (node.attrs.type === 'module') {
+          let attrs = node.attrs;
+          if (attrs && attrs.type === 'module') {
             if (
               asset.env.shouldScopeHoist &&
               asset.env.supports('esmodules', true)
             ) {
               outputFormat = 'esmodule';
             } else {
-              delete node.attrs.type;
+              delete attrs.type;
             }
 
             sourceType = 'module';

packages/transformers/svg/src/inline.js

@@ -64,23 +64,25 @@ export default function extractInlineAssets(
         return node;
       }
 
-      if (!node.attrs) {
-        node.attrs = {};
+      let attrs = node.attrs;
+      if (!attrs) {
+        attrs = {};
+        node.attrs = attrs;
       }
 
       // Inform packager to remove type, since CSS and JS are the defaults.
-      delete node.attrs.type;
+      delete attrs.type;
 
       let parcelKey;
       // allow a script/style tag to declare its key
-      if (node.attrs['data-parcel-key']) {
-        parcelKey = node.attrs['data-parcel-key'];
+      if (attrs['data-parcel-key']) {
+        parcelKey = attrs['data-parcel-key'];
       } else {
         parcelKey = hashString(`${asset.id}:${key++}`);
       }
 
       // insert parcelId to allow us to retrieve node during packaging
-      node.attrs['data-parcel-key'] = parcelKey;
+      attrs['data-parcel-key'] = parcelKey;
       asset.setAST(ast); // mark dirty
 
       asset.addDependency({

packages/utils/node-resolver-core/src/NodeResolver.js

@@ -49,10 +49,7 @@ type ResolvedFile = {|
   pkg: InternalPackageJSON | null,
 |};
 
-type Aliases =
-  | string
-  | {[string]: string, ...}
-  | {[string]: string | boolean, ...};
+type Aliases = string | {+[string]: string | boolean | {|global: string|}, ...};
 type ResolvedAlias = {|
   type: 'file' | 'global',
   sourcePath: FilePath,
@@ -1117,7 +1114,7 @@ export default class NodeResolver {
         if (typeof alias === 'string' && subPath) {
           let isRelative = alias.startsWith('./');
           // Append the filename back onto the aliased module.
-          alias = path.posix.join(alias, subPath);
+          alias = (path.posix.join(alias, subPath): string);
           // because of path.join('./nested', 'sub') === 'nested/sub'
           if (isRelative) alias = './' + alias;
         }
@@ -1133,7 +1130,7 @@ export default class NodeResolver {
       };
     }
 
-    if (alias instanceof Object) {
+    if (alias && typeof alias === 'object') {
       if (alias.global) {
         if (typeof alias.global !== 'string' || alias.global.length === 0) {
           throw new ThrowableDiagnostic({
@@ -1149,8 +1146,6 @@ export default class NodeResolver {
           sourcePath: pkg.pkgfile,
           resolved: alias.global,
         };
-      } else if (alias.fileName) {
-        alias = alias.fileName;
       }
     }
 
@@ -1171,7 +1166,10 @@ export default class NodeResolver {
     return null;
   }
 
-  lookupAlias(aliases: Aliases, filename: FilePath): null | boolean | string {
+  lookupAlias(
+    aliases: Aliases,
+    filename: FilePath,
+  ): null | boolean | string | {|global: string|} {
     if (typeof aliases !== 'object') {
       return null;
     }

yarn.lock

@@ -6050,10 +6050,10 @@ flatted@^3.1.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.1.1.tgz#c4b489e80096d9df1dfc97c79871aea7c617c469"
   integrity sha512-zAoAQiudy+r5SvnSw3KJy5os/oRJYHzrzja/tBDqrZtNhUw8bt6y8OBzMWcjWr+8liV8Eb6yOhw8WZ7VFZ5ZzA==
 
-flow-bin@0.176.3:
-  version "0.176.3"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.176.3.tgz#d32de04e044ab474afe543b9fd245608bb6a6ac8"
-  integrity sha512-lbNqgjr2GlGLAEVp5+dhG4LdnFE7ekbvVNifAdlvTx58/nE8GrCOMiUwEQy4dLnfL2NIRMk2dbEVTrugeQJ3mA==
+flow-bin@0.180.0:
+  version "0.180.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.180.0.tgz#7a26f3a0cff61e386267e72ef7971d1af73e317a"
+  integrity sha512-jEZoIwOxzrtQ0erUu94nEzlqUoX7OAMeVs0CjO0rN6b7SDBhI5IysVRvGSQkkFWBJpy5VQ9lvzBYzq5Sq9vcmg==
 
 flush-write-stream@^1.0.0, flush-write-stream@^1.0.2:
   version "1.1.1"
@@ -7129,11 +7129,6 @@ iferr@^0.1.5:
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
   integrity sha1-xg7taebY/bazEEofy8ocGS3FtQE=
 
-iferr@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/iferr/-/iferr-1.0.2.tgz#e9fde49a9da06dc4a4194c6c9ed6d08305037a6d"
-  integrity sha512-9AfeLfji44r5TKInjhz3W9DyZI1zR1JAf2hVBMGhddAKPqBsupb89jGfbCTHIGZd6fGZl9WlHdn4AObygyMKwg==
-
 ignore-walk@^3.0.1:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.3.tgz#017e2447184bfeade7c238e4aefdd1e8f95b1e37"