flipper-babel-transformer/lib/plugin-flipper-requires.js

Babel transformer for Flipper plugins

"use strict";
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 */
Object.defineProperty(exports, "__esModule", { value: true });
const types_1 = require("@babel/types");
const path_1 = require("path");
const replace_flipper_requires_1 = require("./replace-flipper-requires");
const sourceRootDir = (0, path_1.resolve)(__dirname, '../..');
const pluginRootDir = (0, path_1.resolve)(__dirname, '../../plugin');
// do not apply this transform for these paths
const EXCLUDE_PATHS = ['relay-devtools/DevtoolsUI'];
function isExcludedPath(path) {
    // Replace requires and React for plugins, but not for the Flipper core code which can access bundled React and other Flipper packages
    if (path.startsWith(sourceRootDir) && !path.startsWith(pluginRootDir)) {
        return true;
    }
    for (const epath of EXCLUDE_PATHS) {
        if (path.indexOf(epath) > -1) {
            return true;
        }
    }
    return false;
}
module.exports = () => ({
    visitor: {
        CallExpression(path, state) {
            if (isExcludedPath(state.file.opts.filename)) {
                return;
            }
            if (!(0, replace_flipper_requires_1.tryReplaceFlipperRequire)(path)) {
                const node = path.node;
                const args = node.arguments || [];
                if (node.callee.type === 'Identifier' &&
                    node.callee.name === 'require' &&
                    args.length === 1 &&
                    (0, types_1.isStringLiteral)(args[0]) &&
                    // require a file not a pacakge
                    args[0].value.indexOf('/') > -1 &&
                    // in the plugin itself and not inside one of its dependencies
                    state.file.opts.filename.startsWith(state.file.opts.root) &&
                    // the resolved path for this file is outside the plugins root
                    !(0, path_1.resolve)((0, path_1.dirname)(state.file.opts.filename), args[0].value).startsWith(state.file.opts.root)) {
                    throw new Error(`Plugins cannot require files from outside their folder. ` +
                        `Attempted to require "${args[0].value}" ` +
                        `from file "${state.file.opts.filename}" resolved to ` +
                        `"${(0, path_1.resolve)((0, path_1.dirname)(state.file.opts.filename), args[0].value)}" ` +
                        `which isn't inside plugin dir "${state.file.opts.root}".`);
                }
            }
        },
        Identifier(path, state) {
            if (isExcludedPath(state.file.opts.filename)) {
                return;
            }
            (0, replace_flipper_requires_1.tryReplaceGlobalReactUsage)(path);
        },
    },
});
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