source: trip-planner-front/node_modules/webpack/lib/rules/UseEffectRulePlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const util = require("util");

/** @typedef {import("./RuleSetCompiler")} RuleSetCompiler */
/** @typedef {import("./RuleSetCompiler").Effect} Effect */

class UseEffectRulePlugin {
        /**
         * @param {RuleSetCompiler} ruleSetCompiler the rule set compiler
         * @returns {void}
         */
        apply(ruleSetCompiler) {
                ruleSetCompiler.hooks.rule.tap(
                        "UseEffectRulePlugin",
                        (path, rule, unhandledProperties, result, references) => {
                                const conflictWith = (property, correctProperty) => {
                                        if (unhandledProperties.has(property)) {
                                                throw ruleSetCompiler.error(
                                                        `${path}.${property}`,
                                                        rule[property],
                                                        `A Rule must not have a '${property}' property when it has a '${correctProperty}' property`
                                                );
                                        }
                                };

                                if (unhandledProperties.has("use")) {
                                        unhandledProperties.delete("use");
                                        unhandledProperties.delete("enforce");

                                        conflictWith("loader", "use");
                                        conflictWith("options", "use");

                                        const use = rule.use;
                                        const enforce = rule.enforce;

                                        const type = enforce ? `use-${enforce}` : "use";

                                        /**
                                         *
                                         * @param {string} path options path
                                         * @param {string} defaultIdent default ident when none is provided
                                         * @param {object} item user provided use value
                                         * @returns {Effect|function(any): Effect[]} effect
                                         */
                                        const useToEffect = (path, defaultIdent, item) => {
                                                if (typeof item === "function") {
                                                        return data => useToEffectsWithoutIdent(path, item(data));
                                                } else {
                                                        return useToEffectRaw(path, defaultIdent, item);
                                                }
                                        };

                                        /**
                                         *
                                         * @param {string} path options path
                                         * @param {string} defaultIdent default ident when none is provided
                                         * @param {object} item user provided use value
                                         * @returns {Effect} effect
                                         */
                                        const useToEffectRaw = (path, defaultIdent, item) => {
                                                if (typeof item === "string") {
                                                        return {
                                                                type,
                                                                value: {
                                                                        loader: item,
                                                                        options: undefined,
                                                                        ident: undefined
                                                                }
                                                        };
                                                } else {
                                                        const loader = item.loader;
                                                        const options = item.options;
                                                        let ident = item.ident;
                                                        if (options && typeof options === "object") {
                                                                if (!ident) ident = defaultIdent;
                                                                references.set(ident, options);
                                                        }
                                                        if (typeof options === "string") {
                                                                util.deprecate(
                                                                        () => {},
                                                                        `Using a string as loader options is deprecated (${path}.options)`,
                                                                        "DEP_WEBPACK_RULE_LOADER_OPTIONS_STRING"
                                                                )();
                                                        }
                                                        return {
                                                                type: enforce ? `use-${enforce}` : "use",
                                                                value: {
                                                                        loader,
                                                                        options,
                                                                        ident
                                                                }
                                                        };
                                                }
                                        };

                                        /**
                                         * @param {string} path options path
                                         * @param {any} items user provided use value
                                         * @returns {Effect[]} effects
                                         */
                                        const useToEffectsWithoutIdent = (path, items) => {
                                                if (Array.isArray(items)) {
                                                        return items.map((item, idx) =>
                                                                useToEffectRaw(`${path}[${idx}]`, "[[missing ident]]", item)
                                                        );
                                                }
                                                return [useToEffectRaw(path, "[[missing ident]]", items)];
                                        };

                                        /**
                                         * @param {string} path current path
                                         * @param {any} items user provided use value
                                         * @returns {(Effect|function(any): Effect[])[]} effects
                                         */
                                        const useToEffects = (path, items) => {
                                                if (Array.isArray(items)) {
                                                        return items.map((item, idx) => {
                                                                const subPath = `${path}[${idx}]`;
                                                                return useToEffect(subPath, subPath, item);
                                                        });
                                                }
                                                return [useToEffect(path, path, items)];
                                        };

                                        if (typeof use === "function") {
                                                result.effects.push(data =>
                                                        useToEffectsWithoutIdent(`${path}.use`, use(data))
                                                );
                                        } else {
                                                for (const effect of useToEffects(`${path}.use`, use)) {
                                                        result.effects.push(effect);
                                                }
                                        }
                                }

                                if (unhandledProperties.has("loader")) {
                                        unhandledProperties.delete("loader");
                                        unhandledProperties.delete("options");
                                        unhandledProperties.delete("enforce");

                                        const loader = rule.loader;
                                        const options = rule.options;
                                        const enforce = rule.enforce;

                                        if (loader.includes("!")) {
                                                throw ruleSetCompiler.error(
                                                        `${path}.loader`,
                                                        loader,
                                                        "Exclamation mark separated loader lists has been removed in favor of the 'use' property with arrays"
                                                );
                                        }

                                        if (loader.includes("?")) {
                                                throw ruleSetCompiler.error(
                                                        `${path}.loader`,
                                                        loader,
                                                        "Query arguments on 'loader' has been removed in favor of the 'options' property"
                                                );
                                        }

                                        if (typeof options === "string") {
                                                util.deprecate(
                                                        () => {},
                                                        `Using a string as loader options is deprecated (${path}.options)`,
                                                        "DEP_WEBPACK_RULE_LOADER_OPTIONS_STRING"
                                                )();
                                        }

                                        const ident =
                                                options && typeof options === "object" ? path : undefined;
                                        references.set(ident, options);
                                        result.effects.push({
                                                type: enforce ? `use-${enforce}` : "use",
                                                value: {
                                                        loader,
                                                        options,
                                                        ident
                                                }
                                        });
                                }
                        }
                );
        }

        useItemToEffects(path, item) {}
}

module.exports = UseEffectRulePlugin;