pybricksMicropython: implement appending imports

This implements appending compiled imported modules for the multi-mpy6
file format.

package.json

@@ -38,6 +38,7 @@
         "@types/web-locks-api": "^0.0.2",
         "@types/wicg-file-system-access": "^2020.9.5",
         "@types/zen-push": "^0.1.1",
+        "assert": "^2.0.0",
         "babel-jest": "^29.2.1",
         "babel-loader": "^8.2.3",
         "babel-plugin-macros": "^3.0.1",
@@ -85,6 +86,7 @@
         "prompts": "^2.4.2",
         "prop-types": "^15.8.1",
         "pyodide": "0.21.3",
+        "python-ast": "^0.1.0",
         "react": "^16.13.1",
         "react-app-polyfill": "^3.0.0",
         "react-aria": "^3.20.0",
@@ -116,6 +118,7 @@
         "typescript": "~4.8.4",
         "usehooks-ts": "^2.9.1",
         "user-agent-data-types": "^0.3.0",
+        "util": "^0.12.5",
         "web-vitals": "^3.0.4",
         "webpack": "^5.74.0",
         "webpack-dev-server": "^4.11.1",
@@ -166,6 +169,7 @@
     },
     "packageManager": "yarn@3.2.0",
     "resolutions": {
+        "antlr4ts@^0.5.0-alpha.3": "0.5.0-alpha.4",
         "mq-polyfill@1.1.8": "patch:mq-polyfill@npm:1.1.8#.yarn/patches/mq-polyfill-npm-1.1.8-62fe162439.patch",
         "react-error-overlay": "6.0.9",
         "react-dev-utils@^12.0.1": "patch:react-dev-utils@npm:12.0.1#.yarn/patches/react-dev-utils-npm-12.0.1-83ba06e3ee.patch",

src/fileStorage/index.ts

@@ -29,7 +29,7 @@ export type FileMetadata = Readonly<{
  *
  * IMPORTANT: if this type is changed, we need to modify the database schema to match
  */
-type FileContents = {
+export type FileContents = {
     /** The path of the file in storage. */
     path: string;
     /** The contents of the file. */

src/mpy/sagas.ts

@@ -7,7 +7,8 @@ import { compile as mpyCrossCompileV6 } from '@pybricks/mpy-cross-v6';
 import wasmV6 from '@pybricks/mpy-cross-v6/build/mpy-cross-v6.wasm';
 import { call, getContext, put, select, takeEvery } from 'typed-redux-saga/macro';
 import { editorGetValue } from '../editor/sagas';
-import { FileStorageDb } from '../fileStorage';
+import { FileContents, FileStorageDb } from '../fileStorage';
+import { findImportedModules, resolveModule } from '../pybricksMicropython/lib';
 import { RootState } from '../reducers';
 import {
     compile,
@@ -20,6 +21,27 @@ import {
 
 const encoder = new TextEncoder();
 
+/**
+ * Converts JavaScript string to C string.
+ * @param str A string.
+ * @returns Zero-terminated, UTF-8 encoded byte array.
+ */
+function cString(str: string): Uint8Array {
+    return encoder.encode(str + '\x00');
+}
+
+/**
+ * Encodes *value* as a 32-bit unsigned integer in little endian order.
+ * @param value An integer between 0 and 2^32.
+ * @returns A 4-byte array containing the encoded valued.
+ */
+function encodeUInt32LE(value: number): ArrayBuffer {
+    const buf = new ArrayBuffer(4);
+    const view = new DataView(buf);
+    view.setUint32(0, value, true);
+    return buf;
+}
+
 /**
  * Compiles a script to .mpy and dispatches either didCompile on success or
  * didFailToCompile on error.
@@ -77,6 +99,12 @@ function* handleCompile(action: ReturnType<typeof compile>): Generator {
     }
 }
 
+/**
+ * Compiles code into the Pybricks multi-mpy6 file format.
+ *
+ * This includes a __main__ module which is the file currently open in the
+ * editor and any imported modules that can be found in the user file system.
+ */
 function* handleCompileMulti6(): Generator {
     // REVISIT: should we be getting the active file here or have it as an
     // action parameter?
@@ -98,31 +126,79 @@ function* handleCompileMulti6(): Generator {
         return;
     }
 
-    const script = yield* editorGetValue();
+    const mainPy = yield* editorGetValue();
 
-    const result = yield* call(() =>
-        mpyCrossCompileV6(
-            metadata.path ?? '__main__.py',
-            script,
-            undefined,
-            // HACK: testing user agent for jsdom is needed only for getting unit tests to work
-            navigator.userAgent.includes('jsdom') ? undefined : wasmV6,
-        ),
-    );
+    const pyFiles = new Map<string, FileContents>([
+        ['__main__', { path: metadata.path ?? '__main__.py', contents: mainPy }],
+    ]);
 
-    // TODO: add support for imports and append to blob
+    const checkedModules = new Set<string>(['__main__']);
+    const uncheckedScripts = new Array<string>(mainPy);
 
-    if (result.status === 0 && result.mpy) {
-        const sizeBuf = new ArrayBuffer(4);
-        const sizeView = new DataView(sizeBuf);
-        sizeView.setUint32(0, result.mpy.length, true);
+    for (;;) {
+        // parse all unchecked scripts to find imported modules that haven't
+        // been checked yet
 
-        const blob = new Blob([sizeBuf, encoder.encode('__main__\x00'), result.mpy]);
+        const uncheckedModules = new Set<string>();
 
-        yield* put(mpyDidCompileMulti6(blob));
-    } else {
-        yield* put(mpyDidFailToCompileMulti6(result.err));
+        for (const uncheckedScript of uncheckedScripts) {
+            const importedModules = findImportedModules(uncheckedScript);
+
+            for (const m of importedModules) {
+                if (!checkedModules.has(m)) {
+                    uncheckedModules.add(m);
+                }
+            }
+        }
+
+        // all of the scripts have been checked now, so clear the unchecked list
+        uncheckedScripts.length = 0;
+
+        // when no more new modules are found, we are done
+        if (uncheckedModules.size === 0) {
+            break;
+        }
+
+        // try to resolve unchecked modules in the file system
+        for (const m of uncheckedModules) {
+            const file = yield* call(() => resolveModule(db, m));
+
+            // if found, queue the module to be compiled and to be parsed
+            // for additional imports
+            if (file) {
+                pyFiles.set(m, file);
+                uncheckedScripts.push(file.contents);
+            }
+
+            checkedModules.add(m);
+        }
     }
+
+    const blobParts: BlobPart[] = [];
+
+    for (const [m, py] of pyFiles) {
+        const result = yield* call(() =>
+            mpyCrossCompileV6(
+                py.path,
+                py.contents,
+                undefined,
+                // HACK: testing user agent for jsdom is needed only for getting unit tests to work
+                navigator.userAgent.includes('jsdom') ? undefined : wasmV6,
+            ),
+        );
+
+        if (result.status !== 0 || !result.mpy) {
+            yield* put(mpyDidFailToCompileMulti6(result.err));
+            return;
+        }
+
+        // each file is encoded as the size, module name, and mpy binary
+        blobParts.push(encodeUInt32LE(result.mpy.length));
+        blobParts.push(cString(m));
+        blobParts.push(result.mpy);
+    }
+
+    yield* put(mpyDidCompileMulti6(new Blob(blobParts)));
 }
 
 export default function* (): Generator {

src/pybricksMicropython/lib.test.ts

@@ -3,6 +3,7 @@
 
 import {
     FileNameValidationResult,
+    findImportedModules,
     pythonFileExtension,
     pythonFileExtensionRegex,
     validateFileName,
@@ -76,3 +77,46 @@ describe('validateFileName', () => {
         );
     });
 });
+
+test('findImportedModules', async () => {
+    const script = `
+import a
+import b, c
+import d.d
+import e.e as e
+import f.f as f, g
+from h import x
+from h import x as y
+from i import (x, y)
+from i import (x as y, z)
+from j import *
+from . import x
+from . import x as y
+from .r import x
+from ..r import x
+from ...r import x
+from ....r import x
+`;
+
+    const modules = findImportedModules(script);
+
+    expect(modules).toEqual(
+        new Set([
+            'a',
+            'b',
+            'c',
+            'd.d',
+            'e.e',
+            'f.f',
+            'g',
+            'h',
+            'i',
+            'j',
+            '.',
+            '.r',
+            '..r',
+            '...r',
+            '....r',
+        ]),
+    );
+});

src/pybricksMicropython/lib.ts

@@ -1,6 +1,9 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2022 The Pybricks Authors
 
+import { parse, walk } from 'python-ast';
+import type { FileContents, FileStorageDb } from '../fileStorage';
+
 /** The Python file extension ('.py') */
 export const pythonFileExtension = '.py';
 
@@ -67,3 +70,78 @@ export function validateFileName(
 
     return FileNameValidationResult.IsOk;
 }
+
+/**
+ * Finds modules imported by a Python script.
+ *
+ * @param py A Python Script.
+ * @returns A list of the names of modules imported by this file.
+ */
+export function findImportedModules(py: string): ReadonlySet<string> {
+    const modules = new Set<string>();
+    const tree = parse(py);
+
+    // find all import statements in the syntax tree and collect imported modules
+    walk(
+        {
+            enterImport_stmt: (ctx) => {
+                // import statements have two forms:
+                // import_stmt: import_name | import_from;
+
+                // import_name: 'import' dotted_as_names
+                const name = ctx.import_name();
+
+                if (name) {
+                    // dotted_as_names: dotted_as_name (',' dotted_as_name)*;
+                    // dotted_as_name: dotted_name ('as' NAME)?;
+                    for (const dottedAsName of name
+                        .dotted_as_names()
+                        .dotted_as_name()) {
+                        // dotted_name: NAME ('.' NAME)*;
+                        modules.add(dottedAsName.dotted_name().text);
+                    }
+                }
+
+                // import_from: ('from' (('.' | '...')* dotted_name | ('.' | '...')+) 'import' ('*' | '(' import_as_names ')' | import_as_names ));
+                const from = ctx.import_from();
+
+                if (from) {
+                    // the leading dots aren't included in dotted_name, so
+                    // we need to collect them separately
+                    const leadingDots = from
+                        .DOT()
+                        .concat(from.ELLIPSIS())
+                        .map((n) => n.symbol.text)
+                        .join('');
+
+                    // dotted_name: NAME ('.' NAME)*;
+                    const dottedName = from.dotted_name()?.text ?? '';
+
+                    modules.add(leadingDots + dottedName);
+                }
+            },
+        },
+        tree,
+    );
+
+    return modules;
+}
+
+export async function resolveModule(
+    db: FileStorageDb,
+    module: string,
+): Promise<FileContents | undefined> {
+    const modulePath = module.replace(/\./g, '/') + '.py';
+
+    return await db.transaction('r', db.metadata, db._contents, async () => {
+        const match = await db.metadata.where('path').equals(modulePath).first();
+
+        if (!match) {
+            return undefined;
+        }
+
+        const file = await db._contents.get(match.path);
+
+        return file;
+    });
+}

yarn.lock

@@ -2434,6 +2434,7 @@ __metadata:
     "@types/zen-push": ^0.1.1
     "@typescript-eslint/eslint-plugin": ^5.40.1
     "@typescript-eslint/parser": ^5.40.1
+    assert: ^2.0.0
     babel-jest: ^29.2.1
     babel-loader: ^8.2.3
     babel-plugin-macros: ^3.0.1
@@ -2492,6 +2493,7 @@ __metadata:
     prompts: ^2.4.2
     prop-types: ^15.8.1
     pyodide: 0.21.3
+    python-ast: ^0.1.0
     react: ^16.13.1
     react-app-polyfill: ^3.0.0
     react-aria: ^3.20.0
@@ -2523,6 +2525,7 @@ __metadata:
     typescript: ~4.8.4
     usehooks-ts: ^2.9.1
     user-agent-data-types: ^0.3.0
+    util: ^0.12.5
     web-vitals: ^3.0.4
     webpack: ^5.74.0
     webpack-dev-server: ^4.11.1
@@ -5483,6 +5486,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"antlr4ts@npm:0.5.0-alpha.4":
+  version: 0.5.0-alpha.4
+  resolution: "antlr4ts@npm:0.5.0-alpha.4"
+  checksum: 37948499d59477f5b5a8ea71dfb8b5330e71d5a7cee60f57351dd744219b8619fa6aac1a5b6ec1a9991846e8ddc9ca47680eb166c59b44333369b3115e7aa358
+  languageName: node
+  linkType: hard
+
 "anymatch@npm:^3.0.3, anymatch@npm:~3.1.2":
   version: 3.1.2
   resolution: "anymatch@npm:3.1.2"
@@ -5631,6 +5641,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"assert@npm:^2.0.0":
+  version: 2.0.0
+  resolution: "assert@npm:2.0.0"
+  dependencies:
+    es6-object-assign: ^1.1.0
+    is-nan: ^1.2.1
+    object-is: ^1.0.1
+    util: ^0.12.0
+  checksum: bb91f181a86d10588ee16c5e09c280f9811373974c29974cbe401987ea34e966699d7989a812b0e19377b511ea0bc627f5905647ce569311824848ede382cae8
+  languageName: node
+  linkType: hard
+
 "ast-types-flow@npm:^0.0.7":
   version: 0.0.7
   resolution: "ast-types-flow@npm:0.0.7"
@@ -5684,6 +5706,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"available-typed-arrays@npm:^1.0.5":
+  version: 1.0.5
+  resolution: "available-typed-arrays@npm:1.0.5"
+  checksum: 20eb47b3cefd7db027b9bbb993c658abd36d4edd3fe1060e83699a03ee275b0c9b216cc076ff3f2db29073225fb70e7613987af14269ac1fe2a19803ccc97f1a
+  languageName: node
+  linkType: hard
+
 "axe-core@npm:^4.3.5":
   version: 4.4.1
   resolution: "axe-core@npm:4.4.1"
@@ -7563,6 +7592,38 @@ __metadata:
   languageName: node
   linkType: hard
 
+"es-abstract@npm:^1.20.0":
+  version: 1.20.4
+  resolution: "es-abstract@npm:1.20.4"
+  dependencies:
+    call-bind: ^1.0.2
+    es-to-primitive: ^1.2.1
+    function-bind: ^1.1.1
+    function.prototype.name: ^1.1.5
+    get-intrinsic: ^1.1.3
+    get-symbol-description: ^1.0.0
+    has: ^1.0.3
+    has-property-descriptors: ^1.0.0
+    has-symbols: ^1.0.3
+    internal-slot: ^1.0.3
+    is-callable: ^1.2.7
+    is-negative-zero: ^2.0.2
+    is-regex: ^1.1.4
+    is-shared-array-buffer: ^1.0.2
+    is-string: ^1.0.7
+    is-weakref: ^1.0.2
+    object-inspect: ^1.12.2
+    object-keys: ^1.1.1
+    object.assign: ^4.1.4
+    regexp.prototype.flags: ^1.4.3
+    safe-regex-test: ^1.0.0
+    string.prototype.trimend: ^1.0.5
+    string.prototype.trimstart: ^1.0.5
+    unbox-primitive: ^1.0.2
+  checksum: 89297cc785c31aedf961a603d5a07ed16471e435d3a1b6d070b54f157cf48454b95cda2ac55e4b86ff4fe3276e835fcffd2771578e6fa634337da49b26826141
+  languageName: node
+  linkType: hard
+
 "es-module-lexer@npm:^0.9.0":
   version: 0.9.3
   resolution: "es-module-lexer@npm:0.9.3"
@@ -7590,6 +7651,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"es6-object-assign@npm:^1.1.0":
+  version: 1.1.0
+  resolution: "es6-object-assign@npm:1.1.0"
+  checksum: 8d4fdf63484d78b5c64cacc2c2e1165bc7b6a64b739d2a9db6a4dc8641d99cc9efb433cdd4dc3d3d6b00bfa6ce959694e4665e3255190339945c5f33b692b5d8
+  languageName: node
+  linkType: hard
+
 "escalade@npm:^3.1.1":
   version: 3.1.1
   resolution: "escalade@npm:3.1.1"
@@ -8394,6 +8462,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"for-each@npm:^0.3.3":
+  version: 0.3.3
+  resolution: "for-each@npm:0.3.3"
+  dependencies:
+    is-callable: ^1.1.3
+  checksum: 6c48ff2bc63362319c65e2edca4a8e1e3483a2fabc72fbe7feaf8c73db94fc7861bd53bc02c8a66a0c1dd709da6b04eec42e0abdd6b40ce47305ae92a25e5d28
+  languageName: node
+  linkType: hard
+
 "fork-ts-checker-webpack-plugin@npm:^6.5.0":
   version: 6.5.2
   resolution: "fork-ts-checker-webpack-plugin@npm:6.5.2"
@@ -8606,6 +8683,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"get-intrinsic@npm:^1.1.3":
+  version: 1.1.3
+  resolution: "get-intrinsic@npm:1.1.3"
+  dependencies:
+    function-bind: ^1.1.1
+    has: ^1.0.3
+    has-symbols: ^1.0.3
+  checksum: 152d79e87251d536cf880ba75cfc3d6c6c50e12b3a64e1ea960e73a3752b47c69f46034456eae1b0894359ce3bc64c55c186f2811f8a788b75b638b06fab228a
+  languageName: node
+  linkType: hard
+
 "get-own-enumerable-property-symbols@npm:^3.0.0":
   version: 3.0.2
   resolution: "get-own-enumerable-property-symbols@npm:3.0.2"
@@ -9305,6 +9393,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"is-callable@npm:^1.1.3, is-callable@npm:^1.2.7":
+  version: 1.2.7
+  resolution: "is-callable@npm:1.2.7"
+  checksum: 61fd57d03b0d984e2ed3720fb1c7a897827ea174bd44402878e059542ea8c4aeedee0ea0985998aa5cc2736b2fa6e271c08587addb5b3959ac52cf665173d1ac
+  languageName: node
+  linkType: hard
+
 "is-callable@npm:^1.1.4, is-callable@npm:^1.2.4":
   version: 1.2.4
   resolution: "is-callable@npm:1.2.4"
@@ -9360,6 +9455,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"is-generator-function@npm:^1.0.7":
+  version: 1.0.10
+  resolution: "is-generator-function@npm:1.0.10"
+  dependencies:
+    has-tostringtag: ^1.0.0
+  checksum: d54644e7dbaccef15ceb1e5d91d680eb5068c9ee9f9eb0a9e04173eb5542c9b51b5ab52c5537f5703e48d5fddfd376817c1ca07a84a407b7115b769d4bdde72b
+  languageName: node
+  linkType: hard
+
 "is-glob@npm:^4.0.0, is-glob@npm:^4.0.1, is-glob@npm:^4.0.3, is-glob@npm:~4.0.1":
   version: 4.0.3
   resolution: "is-glob@npm:4.0.3"
@@ -9397,6 +9501,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"is-nan@npm:^1.2.1":
+  version: 1.3.2
+  resolution: "is-nan@npm:1.3.2"
+  dependencies:
+    call-bind: ^1.0.0
+    define-properties: ^1.1.3
+  checksum: 5dfadcef6ad12d3029d43643d9800adbba21cf3ce2ec849f734b0e14ee8da4070d82b15fdb35138716d02587c6578225b9a22779cab34888a139cc43e4e3610a
+  languageName: node
+  linkType: hard
+
 "is-negative-zero@npm:^2.0.2":
   version: 2.0.2
   resolution: "is-negative-zero@npm:2.0.2"
@@ -9506,6 +9620,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"is-typed-array@npm:^1.1.3, is-typed-array@npm:^1.1.9":
+  version: 1.1.9
+  resolution: "is-typed-array@npm:1.1.9"
+  dependencies:
+    available-typed-arrays: ^1.0.5
+    call-bind: ^1.0.2
+    es-abstract: ^1.20.0
+    for-each: ^0.3.3
+    has-tostringtag: ^1.0.0
+  checksum: 11910f1e58755fef43bf0074e52fa5b932bf101ec65d613e0a83d40e8e4c6e3f2ee142d624ebc7624c091d3bbe921131f8db7d36ecbbb71909f2fe310c1faa65
+  languageName: node
+  linkType: hard
+
 "is-weakref@npm:^1.0.2":
   version: 1.0.2
   resolution: "is-weakref@npm:1.0.2"
@@ -11172,7 +11299,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"object-inspect@npm:^1.12.0, object-inspect@npm:^1.9.0":
+"object-inspect@npm:^1.12.0, object-inspect@npm:^1.12.2, object-inspect@npm:^1.9.0":
   version: 1.12.2
   resolution: "object-inspect@npm:1.12.2"
   checksum: a534fc1b8534284ed71f25ce3a496013b7ea030f3d1b77118f6b7b1713829262be9e6243acbcb3ef8c626e2b64186112cb7f6db74e37b2789b9c789ca23048b2
@@ -11208,6 +11335,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"object.assign@npm:^4.1.4":
+  version: 4.1.4
+  resolution: "object.assign@npm:4.1.4"
+  dependencies:
+    call-bind: ^1.0.2
+    define-properties: ^1.1.4
+    has-symbols: ^1.0.3
+    object-keys: ^1.1.1
+  checksum: 76cab513a5999acbfe0ff355f15a6a125e71805fcf53de4e9d4e082e1989bdb81d1e329291e1e4e0ae7719f0e4ef80e88fb2d367ae60500d79d25a6224ac8864
+  languageName: node
+  linkType: hard
+
 "object.entries@npm:^1.1.5":
   version: 1.1.5
   resolution: "object.entries@npm:1.1.5"
@@ -12620,6 +12759,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"python-ast@npm:^0.1.0":
+  version: 0.1.0
+  resolution: "python-ast@npm:0.1.0"
+  dependencies:
+    antlr4ts: ^0.5.0-alpha.3
+  checksum: 1fc453e89f932a1e7f6f57a0f9dc304252093e8aa6c934a426ef30c7e2c9fd0c05aad168fa3ad053ba3bb88362a2fb5097c6e9d360351539f5027ff2af0e5eab
+  languageName: node
+  linkType: hard
+
 "qs@npm:6.10.3":
   version: 6.10.3
   resolution: "qs@npm:6.10.3"
@@ -13464,6 +13612,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"safe-regex-test@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "safe-regex-test@npm:1.0.0"
+  dependencies:
+    call-bind: ^1.0.2
+    get-intrinsic: ^1.1.3
+    is-regex: ^1.1.4
+  checksum: bc566d8beb8b43c01b94e67de3f070fd2781685e835959bbbaaec91cc53381145ca91f69bd837ce6ec244817afa0a5e974fc4e40a2957f0aca68ac3add1ddd34
+  languageName: node
+  linkType: hard
+
 "safer-buffer@npm:>= 2.1.2 < 3, safer-buffer@npm:>= 2.1.2 < 3.0.0":
   version: 2.1.2
   resolution: "safer-buffer@npm:2.1.2"
@@ -14986,6 +15145,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"util@npm:^0.12.0, util@npm:^0.12.5":
+  version: 0.12.5
+  resolution: "util@npm:0.12.5"
+  dependencies:
+    inherits: ^2.0.3
+    is-arguments: ^1.0.4
+    is-generator-function: ^1.0.7
+    is-typed-array: ^1.1.3
+    which-typed-array: ^1.1.2
+  checksum: 705e51f0de5b446f4edec10739752ac25856541e0254ea1e7e45e5b9f9b0cb105bc4bd415736a6210edc68245a7f903bf085ffb08dd7deb8a0e847f60538a38a
+  languageName: node
+  linkType: hard
+
 "utila@npm:~0.4":
   version: 0.4.0
   resolution: "utila@npm:0.4.0"
@@ -15348,6 +15520,20 @@ __metadata:
   languageName: node
   linkType: hard
 
+"which-typed-array@npm:^1.1.2":
+  version: 1.1.8
+  resolution: "which-typed-array@npm:1.1.8"
+  dependencies:
+    available-typed-arrays: ^1.0.5
+    call-bind: ^1.0.2
+    es-abstract: ^1.20.0
+    for-each: ^0.3.3
+    has-tostringtag: ^1.0.0
+    is-typed-array: ^1.1.9
+  checksum: bedf4d30a738e848404fe67fe0ace33433a7298cf3f5a4d4b2c624ba99c4d25f06a7fd6f3566c3d16af5f8a54f0c6293cbfded5b1208ce11812753990223b45a
+  languageName: node
+  linkType: hard
+
 "which@npm:^1.3.1":
   version: 1.3.1
   resolution: "which@npm:1.3.1"