diff options
Diffstat (limited to 'node_modules/webpack/lib/dependencies/ImportParserPlugin.js')
| -rw-r--r-- | node_modules/webpack/lib/dependencies/ImportParserPlugin.js | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/ImportParserPlugin.js b/node_modules/webpack/lib/dependencies/ImportParserPlugin.js new file mode 100644 index 00000000..db22574f --- /dev/null +++ b/node_modules/webpack/lib/dependencies/ImportParserPlugin.js @@ -0,0 +1,264 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Tobias Koppers @sokra +*/ +"use strict"; + +const ImportContextDependency = require("./ImportContextDependency"); +const ImportWeakDependency = require("./ImportWeakDependency"); +const ImportDependenciesBlock = require("./ImportDependenciesBlock"); +const ImportEagerDependency = require("./ImportEagerDependency"); +const ContextDependencyHelpers = require("./ContextDependencyHelpers"); +const UnsupportedFeatureWarning = require("../UnsupportedFeatureWarning"); +const CommentCompilationWarning = require("../CommentCompilationWarning"); + +class ImportParserPlugin { + constructor(options) { + this.options = options; + } + + apply(parser) { + parser.hooks.importCall.tap("ImportParserPlugin", expr => { + if (expr.arguments.length !== 1) { + throw new Error( + "Incorrect number of arguments provided to 'import(module: string) -> Promise'." + ); + } + + const param = parser.evaluateExpression(expr.arguments[0]); + + let chunkName = null; + let mode = "lazy"; + let include = null; + let exclude = null; + const groupOptions = {}; + + const { + options: importOptions, + errors: commentErrors + } = parser.parseCommentOptions(expr.range); + + if (commentErrors) { + for (const e of commentErrors) { + const { comment } = e; + parser.state.module.warnings.push( + new CommentCompilationWarning( + `Compilation error while processing magic comment(-s): /*${ + comment.value + }*/: ${e.message}`, + parser.state.module, + comment.loc + ) + ); + } + } + + if (importOptions) { + if (importOptions.webpackIgnore !== undefined) { + if (typeof importOptions.webpackIgnore !== "boolean") { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackIgnore\` expected a boolean, but received: ${ + importOptions.webpackIgnore + }.`, + expr.loc + ) + ); + } else { + // Do not instrument `import()` if `webpackIgnore` is `true` + if (importOptions.webpackIgnore) { + return false; + } + } + } + if (importOptions.webpackChunkName !== undefined) { + if (typeof importOptions.webpackChunkName !== "string") { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackChunkName\` expected a string, but received: ${ + importOptions.webpackChunkName + }.`, + expr.loc + ) + ); + } else { + chunkName = importOptions.webpackChunkName; + } + } + if (importOptions.webpackMode !== undefined) { + if (typeof importOptions.webpackMode !== "string") { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackMode\` expected a string, but received: ${ + importOptions.webpackMode + }.`, + expr.loc + ) + ); + } else { + mode = importOptions.webpackMode; + } + } + if (importOptions.webpackPrefetch !== undefined) { + if (importOptions.webpackPrefetch === true) { + groupOptions.prefetchOrder = 0; + } else if (typeof importOptions.webpackPrefetch === "number") { + groupOptions.prefetchOrder = importOptions.webpackPrefetch; + } else { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackPrefetch\` expected true or a number, but received: ${ + importOptions.webpackPrefetch + }.`, + expr.loc + ) + ); + } + } + if (importOptions.webpackPreload !== undefined) { + if (importOptions.webpackPreload === true) { + groupOptions.preloadOrder = 0; + } else if (typeof importOptions.webpackPreload === "number") { + groupOptions.preloadOrder = importOptions.webpackPreload; + } else { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackPreload\` expected true or a number, but received: ${ + importOptions.webpackPreload + }.`, + expr.loc + ) + ); + } + } + if (importOptions.webpackInclude !== undefined) { + if ( + !importOptions.webpackInclude || + importOptions.webpackInclude.constructor.name !== "RegExp" + ) { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackInclude\` expected a regular expression, but received: ${ + importOptions.webpackInclude + }.`, + expr.loc + ) + ); + } else { + include = new RegExp(importOptions.webpackInclude); + } + } + if (importOptions.webpackExclude !== undefined) { + if ( + !importOptions.webpackExclude || + importOptions.webpackExclude.constructor.name !== "RegExp" + ) { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackExclude\` expected a regular expression, but received: ${ + importOptions.webpackExclude + }.`, + expr.loc + ) + ); + } else { + exclude = new RegExp(importOptions.webpackExclude); + } + } + } + + if (param.isString()) { + if (mode !== "lazy" && mode !== "eager" && mode !== "weak") { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackMode\` expected 'lazy', 'eager' or 'weak', but received: ${mode}.`, + expr.loc + ) + ); + } + + if (mode === "eager") { + const dep = new ImportEagerDependency( + param.string, + parser.state.module, + expr.range + ); + parser.state.current.addDependency(dep); + } else if (mode === "weak") { + const dep = new ImportWeakDependency( + param.string, + parser.state.module, + expr.range + ); + parser.state.current.addDependency(dep); + } else { + const depBlock = new ImportDependenciesBlock( + param.string, + expr.range, + Object.assign(groupOptions, { + name: chunkName + }), + parser.state.module, + expr.loc, + parser.state.module + ); + parser.state.current.addBlock(depBlock); + } + return true; + } else { + if ( + mode !== "lazy" && + mode !== "lazy-once" && + mode !== "eager" && + mode !== "weak" + ) { + parser.state.module.warnings.push( + new UnsupportedFeatureWarning( + parser.state.module, + `\`webpackMode\` expected 'lazy', 'lazy-once', 'eager' or 'weak', but received: ${mode}.`, + expr.loc + ) + ); + mode = "lazy"; + } + + if (mode === "weak") { + mode = "async-weak"; + } + const dep = ContextDependencyHelpers.create( + ImportContextDependency, + expr.range, + param, + expr, + this.options, + { + chunkName, + groupOptions, + include, + exclude, + mode, + namespaceObject: parser.state.module.buildMeta.strictHarmonyModule + ? "strict" + : true + }, + parser + ); + if (!dep) return; + dep.loc = expr.loc; + dep.optional = !!parser.scope.inTry; + parser.state.current.addDependency(dep); + return true; + } + }); + } +} + +module.exports = ImportParserPlugin; |