@ima/cli/dist/webpack/loaders/use-server-loader/index.js

IMA.js CLI tool to build, develop and work with IMA.js applications.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const generator_1 = __importDefault(require("@babel/generator"));
const parser_1 = require("@babel/parser");
const serverControllerProcessor_1 = require("./processors/serverControllerProcessor");
const stubProcessor_1 = require("./processors/stubProcessor");
/**
 * The default processors that are run on the AST.
 * IMPORTANT: the order of the processors is important.
 */
const defaultProcessors = [
    stubProcessor_1.stubProcessor,
    serverControllerProcessor_1.serverControllerProcessor,
];
/**
 * This generic webpack loader is triggered by the 'use server' directive.
 * It parses a file into an AST and then runs a series of processors against it,
 * which can modify the AST. Finally, it generates code from the transformed AST.
 *
 * @param {string} source The source code of the module.
 * @returns {string} The transformed source code.
 */
const UseServerLoader = function (source, inputMap) {
    const options = this.getOptions();
    const done = this.async();
    // Only run on the client and if 'use server' is present
    if (options.environment !== 'client' ||
        (!source.trimStart().startsWith(`"use server"`) &&
            !source.trimStart().startsWith(`'use server'`))) {
        return done(null, source, inputMap);
    }
    // Parse source into AST
    let ast = (0, parser_1.parse)(source, {
        sourceType: 'module',
        plugins: ['typescript'],
        sourceFilename: this.resourcePath,
    });
    // Run AST through all configured processors one by one
    for (const processor of defaultProcessors) {
        ast = processor(ast);
    }
    // Generate code from the final AST
    const output = (0, generator_1.default)(ast, {
        sourceMaps: !!this.sourceMap,
        sourceFileName: this.resourcePath,
    });
    done(null, output.code, output.map || undefined);
};
exports.default = UseServerLoader;