diff options
Diffstat (limited to 'node_modules/webpack/lib/node/NodeSourcePlugin.js')
-rw-r--r-- | node_modules/webpack/lib/node/NodeSourcePlugin.js | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/node/NodeSourcePlugin.js b/node_modules/webpack/lib/node/NodeSourcePlugin.js new file mode 100644 index 0000000..081e1a6 --- /dev/null +++ b/node_modules/webpack/lib/node/NodeSourcePlugin.js @@ -0,0 +1,141 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Tobias Koppers @sokra +*/ +"use strict"; +const AliasPlugin = require("enhanced-resolve/lib/AliasPlugin"); +const ParserHelpers = require("../ParserHelpers"); +const nodeLibsBrowser = require("node-libs-browser"); + +module.exports = class NodeSourcePlugin { + constructor(options) { + this.options = options; + } + apply(compiler) { + const options = this.options; + if (options === false) { + // allow single kill switch to turn off this plugin + return; + } + + const getPathToModule = (module, type) => { + if (type === true || (type === undefined && nodeLibsBrowser[module])) { + if (!nodeLibsBrowser[module]) { + throw new Error( + `No browser version for node.js core module ${module} available` + ); + } + return nodeLibsBrowser[module]; + } else if (type === "mock") { + return require.resolve(`node-libs-browser/mock/${module}`); + } else if (type === "empty") { + return require.resolve("node-libs-browser/mock/empty"); + } else { + return module; + } + }; + + const addExpression = (parser, name, module, type, suffix) => { + suffix = suffix || ""; + parser.hooks.expression.for(name).tap("NodeSourcePlugin", () => { + if ( + parser.state.module && + parser.state.module.resource === getPathToModule(module, type) + ) + return; + const mockModule = ParserHelpers.requireFileAsExpression( + parser.state.module.context, + getPathToModule(module, type) + ); + return ParserHelpers.addParsedVariableToModule( + parser, + name, + mockModule + suffix + ); + }); + }; + + compiler.hooks.compilation.tap( + "NodeSourcePlugin", + (compilation, { normalModuleFactory }) => { + const handler = (parser, parserOptions) => { + if (parserOptions.node === false) return; + + let localOptions = options; + if (parserOptions.node) { + localOptions = Object.assign({}, localOptions, parserOptions.node); + } + if (localOptions.global) { + parser.hooks.expression + .for("global") + .tap("NodeSourcePlugin", () => { + const retrieveGlobalModule = ParserHelpers.requireFileAsExpression( + parser.state.module.context, + require.resolve("../../buildin/global") + ); + return ParserHelpers.addParsedVariableToModule( + parser, + "global", + retrieveGlobalModule + ); + }); + } + if (localOptions.process) { + const processType = localOptions.process; + addExpression(parser, "process", "process", processType); + } + if (localOptions.console) { + const consoleType = localOptions.console; + addExpression(parser, "console", "console", consoleType); + } + const bufferType = localOptions.Buffer; + if (bufferType) { + addExpression(parser, "Buffer", "buffer", bufferType, ".Buffer"); + } + if (localOptions.setImmediate) { + const setImmediateType = localOptions.setImmediate; + addExpression( + parser, + "setImmediate", + "timers", + setImmediateType, + ".setImmediate" + ); + addExpression( + parser, + "clearImmediate", + "timers", + setImmediateType, + ".clearImmediate" + ); + } + }; + normalModuleFactory.hooks.parser + .for("javascript/auto") + .tap("NodeSourcePlugin", handler); + normalModuleFactory.hooks.parser + .for("javascript/dynamic") + .tap("NodeSourcePlugin", handler); + } + ); + compiler.hooks.afterResolvers.tap("NodeSourcePlugin", compiler => { + for (const lib of Object.keys(nodeLibsBrowser)) { + if (options[lib] !== false) { + compiler.resolverFactory.hooks.resolver + .for("normal") + .tap("NodeSourcePlugin", resolver => { + new AliasPlugin( + "described-resolve", + { + name: lib, + onlyModule: true, + alias: getPathToModule(lib, options[lib]) + }, + "resolve" + ).apply(resolver); + }); + } + } + }); + } +}; |