Switch to oxidized flow parser (#19398)

Co-authored-by: fisker <lionkay@gmail.com>

scripts/build/esbuild-plugins/throw-warnings.js

@@ -110,17 +110,6 @@ export default function esbuildPluginThrowWarnings({
             continue;
           }
 
-          if (
-            [
-              "node_modules/flow-parser/flow_parser.js",
-              "dist/_parser-flow.js.umd.js",
-              "dist/_parser-flow.js.esm.mjs",
-            ].includes(warning.location.file) &&
-            warning.id === "duplicate-case"
-          ) {
-            continue;
-          }
-
           console.log(warning);
           throw new Error(warning.text);
         }

scripts/build/packages/plugin-hermes.js

@@ -1,4 +1,5 @@
 import path from "node:path";
+import { outdent } from "outdent";
 import { DIST_DIR, PACKAGES_DIRECTORY } from "../../utilities/index.js";
 import { createJavascriptModuleBuilder } from "../builders/javascript-module.js";
 import { getPackageFile } from "../utilities.js";
@@ -27,21 +28,25 @@ const mainModule = {
           {
             module: getPackageFile("hermes-parser/dist/HermesParser.js"),
             process(text) {
-              text =
-                'const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;' +
-                text;
+              text = outdent`
+                const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;
+
+                ${text}
+              `;
               return text;
             },
           },
           {
             module: getPackageFile("hermes-parser/dist/HermesParserWASM.js"),
             process(text) {
+              text = outdent`
+                const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;
+
+                ${text}
+              `;
               text = text.replaceAll("process.argv", "[]");
               text = text.replaceAll('require("fs")', "undefined");
               text = text.replaceAll('require("path")', "undefined");
-              text =
-                'const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;' +
-                text;
 
               return text;
             },

scripts/build/packages/prettier.js

@@ -258,29 +258,30 @@ const pluginFiles = [
     input: "src/plugins/flow.js",
     replaceModule: [
       {
-        module: require.resolve("flow-parser"),
+        module: getPackageFile("flow-parser/oxidized/FlowParser.js"),
         process(text) {
-          const { fsModuleNameVariableName } = text.match(
-            /,(?<fsModuleNameVariableName>[\p{ID_Start}_$][\p{ID_Continue}$]*)="fs",/u,
-          ).groups;
+          text = outdent`
+            const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;
 
-          text = text
-            .replaceAll(`require(${fsModuleNameVariableName})`, "{}")
-            .replaceAll('require("fs")', "{}")
-            .replaceAll('require("constants")', "{}");
+            ${text}
+          `;
+          return text;
+        },
+      },
+      {
+        module: getPackageFile("flow-parser/oxidized/FlowParserWASM.js"),
+        process(text) {
+          text = outdent`
+            const Buffer = globalThis.Buffer ?? require("buffer/").Buffer;
 
-          const { globalThisVariableName } = text.match(
-            /\(function\((?<globalThisVariableName>[\p{ID_Start}$][\p{ID_Continue}$]*)\)\{"use strict";/u,
-          ).groups;
-
-          // flow-parser adds a global error handler cause the error stack been huge
-          // https://github.com/facebook/flow/issues/9299
-          // NOTE: Can't reproduce in flow-parser@0.298.0, but the code still there
-          // NOTE2: This is not tested
-          text = text.replaceAll(`${globalThisVariableName}.process`, "({})");
+            ${text}
+          `;
+          text = text.replaceAll("process.argv", "[]");
+          text = text.replaceAll('require("fs")', "undefined");
+          text = text.replaceAll('require("path")', "undefined");
           text = text.replaceAll(
-            `${globalThisVariableName}.addEventListener`,
-            "(() =>{})",
+            'require("crypto")',
+            `require(${JSON.stringify(path.join(import.meta.dirname, "../shims/crypto-random-fill-sync.cjs"))})`,
           );
 
           return text;

scripts/build/shims/crypto-random-fill-sync.cjs

@@ -0,0 +1,25 @@
+"use strict";
+
+// eslint-disable-next-line no-redeclare
+const { crypto } = globalThis;
+
+if (crypto && typeof crypto.getRandomValues === "function") {
+  module.exports = {
+    randomFillSync(view) {
+      crypto.getRandomValues(view);
+      return view;
+    },
+  };
+}
+
+let state = 0x9e3779b9;
+module.exports = {
+  randomFillSync(view) {
+    for (let index = 0; index < view.length; index++) {
+      state = Math.imul(state ^ (state >>> 15), state | 1);
+      state ^= state + Math.imul(state ^ (state >>> 7), state | 61);
+      view[index] = (state ^ (state >>> 14)) & 255;
+    }
+    return view;
+  },
+};