diff options
| author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
| commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
| tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/webpack/lib/RuleSet.js | |
| parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
node_modules
Diffstat (limited to 'node_modules/webpack/lib/RuleSet.js')
| -rw-r--r-- | node_modules/webpack/lib/RuleSet.js | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/RuleSet.js b/node_modules/webpack/lib/RuleSet.js new file mode 100644 index 000000000..c52226b84 --- /dev/null +++ b/node_modules/webpack/lib/RuleSet.js @@ -0,0 +1,444 @@ +/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+/*
+<rules>: <rule>
+<rules>: [<rule>]
+<rule>: {
+ resource: {
+ test: <condition>,
+ include: <condition>,
+ exclude: <condition>,
+ },
+ resource: <condition>, -> resource.test
+ test: <condition>, -> resource.test
+ include: <condition>, -> resource.include
+ exclude: <condition>, -> resource.exclude
+ resourceQuery: <condition>,
+ compiler: <condition>,
+ issuer: <condition>,
+ use: "loader", -> use[0].loader
+ loader: <>, -> use[0].loader
+ loaders: <>, -> use
+ options: {}, -> use[0].options,
+ query: {}, -> options
+ parser: {},
+ use: [
+ "loader" -> use[x].loader
+ ],
+ use: [
+ {
+ loader: "loader",
+ options: {}
+ }
+ ],
+ rules: [
+ <rule>
+ ],
+ oneOf: [
+ <rule>
+ ]
+}
+
+<condition>: /regExp/
+<condition>: function(arg) {}
+<condition>: "starting"
+<condition>: [<condition>] // or
+<condition>: { and: [<condition>] }
+<condition>: { or: [<condition>] }
+<condition>: { not: [<condition>] }
+<condition>: { test: <condition>, include: <condition>, exclude: <condition> }
+
+
+normalized:
+
+{
+ resource: function(),
+ resourceQuery: function(),
+ compiler: function(),
+ issuer: function(),
+ use: [
+ {
+ loader: string,
+ options: string,
+ <any>: <any>
+ }
+ ],
+ rules: [<rule>],
+ oneOf: [<rule>],
+ <any>: <any>,
+}
+
+*/
+
+"use strict";
+
+module.exports = class RuleSet {
+ constructor(rules) {
+ this.references = Object.create(null);
+ this.rules = RuleSet.normalizeRules(rules, this.references, "ref-");
+ }
+
+ static normalizeRules(rules, refs, ident) {
+ if(Array.isArray(rules)) {
+ return rules.map((rule, idx) => {
+ return RuleSet.normalizeRule(rule, refs, `${ident}-${idx}`);
+ });
+ } else if(rules) {
+ return [RuleSet.normalizeRule(rules, refs, ident)];
+ } else {
+ return [];
+ }
+ }
+
+ static normalizeRule(rule, refs, ident) {
+ if(typeof rule === "string")
+ return {
+ use: [{
+ loader: rule
+ }]
+ };
+ if(!rule)
+ throw new Error("Unexcepted null when object was expected as rule");
+ if(typeof rule !== "object")
+ throw new Error("Unexcepted " + typeof rule + " when object was expected as rule (" + rule + ")");
+
+ let newRule = {};
+ let useSource;
+ let resourceSource;
+ let condition;
+
+ if(rule.test || rule.include || rule.exclude) {
+ checkResourceSource("test + include + exclude");
+ condition = {
+ test: rule.test,
+ include: rule.include,
+ exclude: rule.exclude
+ };
+ try {
+ newRule.resource = RuleSet.normalizeCondition(condition);
+ } catch(error) {
+ throw new Error(RuleSet.buildErrorMessage(condition, error));
+ }
+ }
+
+ if(rule.resource) {
+ checkResourceSource("resource");
+ try {
+ newRule.resource = RuleSet.normalizeCondition(rule.resource);
+ } catch(error) {
+ throw new Error(RuleSet.buildErrorMessage(rule.resource, error));
+ }
+ }
+
+ if(rule.resourceQuery) {
+ try {
+ newRule.resourceQuery = RuleSet.normalizeCondition(rule.resourceQuery);
+ } catch(error) {
+ throw new Error(RuleSet.buildErrorMessage(rule.resourceQuery, error));
+ }
+ }
+
+ if(rule.compiler) {
+ try {
+ newRule.compiler = RuleSet.normalizeCondition(rule.compiler);
+ } catch(error) {
+ throw new Error(RuleSet.buildErrorMessage(rule.compiler, error));
+ }
+ }
+
+ if(rule.issuer) {
+ try {
+ newRule.issuer = RuleSet.normalizeCondition(rule.issuer);
+ } catch(error) {
+ throw new Error(RuleSet.buildErrorMessage(rule.issuer, error));
+ }
+ }
+
+ if(rule.loader && rule.loaders)
+ throw new Error(RuleSet.buildErrorMessage(rule, new Error("Provided loader and loaders for rule (use only one of them)")));
+
+ const loader = rule.loaders || rule.loader;
+ if(typeof loader === "string" && !rule.options && !rule.query) {
+ checkUseSource("loader");
+ newRule.use = RuleSet.normalizeUse(loader.split("!"), ident);
+ } else if(typeof loader === "string" && (rule.options || rule.query)) {
+ checkUseSource("loader + options/query");
+ newRule.use = RuleSet.normalizeUse({
+ loader: loader,
+ options: rule.options,
+ query: rule.query
+ }, ident);
+ } else if(loader && (rule.options || rule.query)) {
+ throw new Error(RuleSet.buildErrorMessage(rule, new Error("options/query cannot be used with loaders (use options for each array item)")));
+ } else if(loader) {
+ checkUseSource("loaders");
+ newRule.use = RuleSet.normalizeUse(loader, ident);
+ } else if(rule.options || rule.query) {
+ throw new Error(RuleSet.buildErrorMessage(rule, new Error("options/query provided without loader (use loader + options)")));
+ }
+
+ if(rule.use) {
+ checkUseSource("use");
+ newRule.use = RuleSet.normalizeUse(rule.use, ident);
+ }
+
+ if(rule.rules)
+ newRule.rules = RuleSet.normalizeRules(rule.rules, refs, `${ident}-rules`);
+
+ if(rule.oneOf)
+ newRule.oneOf = RuleSet.normalizeRules(rule.oneOf, refs, `${ident}-oneOf`);
+
+ const keys = Object.keys(rule).filter((key) => {
+ return ["resource", "resourceQuery", "compiler", "test", "include", "exclude", "issuer", "loader", "options", "query", "loaders", "use", "rules", "oneOf"].indexOf(key) < 0;
+ });
+ keys.forEach((key) => {
+ newRule[key] = rule[key];
+ });
+
+ function checkUseSource(newSource) {
+ if(useSource && useSource !== newSource)
+ throw new Error(RuleSet.buildErrorMessage(rule, new Error("Rule can only have one result source (provided " + newSource + " and " + useSource + ")")));
+ useSource = newSource;
+ }
+
+ function checkResourceSource(newSource) {
+ if(resourceSource && resourceSource !== newSource)
+ throw new Error(RuleSet.buildErrorMessage(rule, new Error("Rule can only have one resource source (provided " + newSource + " and " + resourceSource + ")")));
+ resourceSource = newSource;
+ }
+
+ if(Array.isArray(newRule.use)) {
+ newRule.use.forEach((item) => {
+ if(item.ident) {
+ refs[item.ident] = item.options;
+ }
+ });
+ }
+
+ return newRule;
+ }
+
+ static buildErrorMessage(condition, error) {
+ const conditionAsText = JSON.stringify(condition, (key, value) => {
+ return value === undefined ? "undefined" : value;
+ }, 2);
+ return error.message + " in " + conditionAsText;
+ }
+
+ static normalizeUse(use, ident) {
+ if(Array.isArray(use)) {
+ return use
+ .map((item, idx) => RuleSet.normalizeUse(item, `${ident}-${idx}`))
+ .reduce((arr, items) => arr.concat(items), []);
+ }
+ return [RuleSet.normalizeUseItem(use, ident)];
+ }
+
+ static normalizeUseItemFunction(use, data) {
+ const result = use(data);
+ if(typeof result === "string") {
+ return RuleSet.normalizeUseItem(result);
+ }
+ return result;
+ }
+
+ static normalizeUseItemString(useItemString) {
+ const idx = useItemString.indexOf("?");
+ if(idx >= 0) {
+ return {
+ loader: useItemString.substr(0, idx),
+ options: useItemString.substr(idx + 1)
+ };
+ }
+ return {
+ loader: useItemString
+ };
+ }
+
+ static normalizeUseItem(item, ident) {
+ if(typeof item === "function")
+ return item;
+
+ if(typeof item === "string") {
+ return RuleSet.normalizeUseItemString(item);
+ }
+
+ let newItem = {};
+
+ if(item.options && item.query)
+ throw new Error("Provided options and query in use");
+
+ if(!item.loader)
+ throw new Error("No loader specified");
+
+ newItem.options = item.options || item.query;
+
+ if(typeof newItem.options === "object" && newItem.options) {
+ if(newItem.options.ident)
+ newItem.ident = newItem.options.ident;
+ else
+ newItem.ident = ident;
+ }
+
+ const keys = Object.keys(item).filter(function(key) {
+ return ["options", "query"].indexOf(key) < 0;
+ });
+
+ keys.forEach(function(key) {
+ newItem[key] = item[key];
+ });
+
+ return newItem;
+ }
+
+ static normalizeCondition(condition) {
+ if(!condition)
+ throw new Error("Expected condition but got falsy value");
+ if(typeof condition === "string") {
+ return str => str.indexOf(condition) === 0;
+ }
+ if(typeof condition === "function") {
+ return condition;
+ }
+ if(condition instanceof RegExp) {
+ return condition.test.bind(condition);
+ }
+ if(Array.isArray(condition)) {
+ const items = condition.map(c => RuleSet.normalizeCondition(c));
+ return orMatcher(items);
+ }
+ if(typeof condition !== "object")
+ throw Error("Unexcepted " + typeof condition + " when condition was expected (" + condition + ")");
+
+ let matchers = [];
+ Object.keys(condition).forEach(key => {
+ const value = condition[key];
+ switch(key) {
+ case "or":
+ case "include":
+ case "test":
+ if(value)
+ matchers.push(RuleSet.normalizeCondition(value));
+ break;
+ case "and":
+ if(value) {
+ const items = value.map(c => RuleSet.normalizeCondition(c));
+ matchers.push(andMatcher(items));
+ }
+ break;
+ case "not":
+ case "exclude":
+ if(value) {
+ const matcher = RuleSet.normalizeCondition(value);
+ matchers.push(notMatcher(matcher));
+ }
+ break;
+ default:
+ throw new Error("Unexcepted property " + key + " in condition");
+ }
+ });
+ if(matchers.length === 0)
+ throw new Error("Excepted condition but got " + condition);
+ if(matchers.length === 1)
+ return matchers[0];
+ return andMatcher(matchers);
+ }
+
+ exec(data) {
+ const result = [];
+ this._run(data, {
+ rules: this.rules
+ }, result);
+ return result;
+ }
+
+ _run(data, rule, result) {
+ // test conditions
+ if(rule.resource && !data.resource)
+ return false;
+ if(rule.resourceQuery && !data.resourceQuery)
+ return false;
+ if(rule.compiler && !data.compiler)
+ return false;
+ if(rule.issuer && !data.issuer)
+ return false;
+ if(rule.resource && !rule.resource(data.resource))
+ return false;
+ if(data.issuer && rule.issuer && !rule.issuer(data.issuer))
+ return false;
+ if(data.resourceQuery && rule.resourceQuery && !rule.resourceQuery(data.resourceQuery))
+ return false;
+ if(data.compiler && rule.compiler && !rule.compiler(data.compiler))
+ return false;
+
+ // apply
+ const keys = Object.keys(rule).filter((key) => {
+ return ["resource", "resourceQuery", "compiler", "issuer", "rules", "oneOf", "use", "enforce"].indexOf(key) < 0;
+ });
+ keys.forEach((key) => {
+ result.push({
+ type: key,
+ value: rule[key]
+ });
+ });
+
+ if(rule.use) {
+ rule.use.forEach((use) => {
+ result.push({
+ type: "use",
+ value: typeof use === "function" ? RuleSet.normalizeUseItemFunction(use, data) : use,
+ enforce: rule.enforce
+ });
+ });
+ }
+
+ if(rule.rules) {
+ for(let i = 0; i < rule.rules.length; i++) {
+ this._run(data, rule.rules[i], result);
+ }
+ }
+
+ if(rule.oneOf) {
+ for(let i = 0; i < rule.oneOf.length; i++) {
+ if(this._run(data, rule.oneOf[i], result))
+ break;
+ }
+ }
+
+ return true;
+ }
+
+ findOptionsByIdent(ident) {
+ const options = this.references[ident];
+ if(!options) throw new Error("Can't find options with ident '" + ident + "'");
+ return options;
+ }
+};
+
+function notMatcher(matcher) {
+ return function(str) {
+ return !matcher(str);
+ };
+}
+
+function orMatcher(items) {
+ return function(str) {
+ for(let i = 0; i < items.length; i++) {
+ if(items[i](str))
+ return true;
+ }
+ return false;
+ };
+}
+
+function andMatcher(items) {
+ return function(str) {
+ for(let i = 0; i < items.length; i++) {
+ if(!items[i](str))
+ return false;
+ }
+ return true;
+ };
+}
|