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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/enhanced-resolve/lib/AliasFieldPlugin.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/enhanced-resolve/lib/AliasFieldPlugin.js')
| -rw-r--r-- | node_modules/enhanced-resolve/lib/AliasFieldPlugin.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/enhanced-resolve/lib/AliasFieldPlugin.js b/node_modules/enhanced-resolve/lib/AliasFieldPlugin.js new file mode 100644 index 00000000..922ee74e --- /dev/null +++ b/node_modules/enhanced-resolve/lib/AliasFieldPlugin.js @@ -0,0 +1,52 @@ +/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
+
+module.exports = class AliasFieldPlugin {
+ constructor(source, field, target) {
+ this.source = source;
+ this.field = field;
+ this.target = target;
+ }
+
+ apply(resolver) {
+ const target = resolver.ensureHook(this.target);
+ resolver.getHook(this.source).tapAsync("AliasFieldPlugin", (request, resolveContext, callback) => {
+ if(!request.descriptionFileData) return callback();
+ const innerRequest = getInnerRequest(resolver, request);
+ if(!innerRequest) return callback();
+ const fieldData = DescriptionFileUtils.getField(request.descriptionFileData, this.field);
+ if(typeof fieldData !== "object") {
+ if(resolveContext.log) resolveContext.log("Field '" + this.field + "' doesn't contain a valid alias configuration");
+ return callback();
+ }
+ const data1 = fieldData[innerRequest];
+ const data2 = fieldData[innerRequest.replace(/^\.\//, "")];
+ const data = typeof data1 !== "undefined" ? data1 : data2;
+ if(data === innerRequest) return callback();
+ if(data === undefined) return callback();
+ if(data === false) {
+ const ignoreObj = Object.assign({}, request, {
+ path: false
+ });
+ return callback(null, ignoreObj);
+ }
+ const obj = Object.assign({}, request, {
+ path: request.descriptionFileRoot,
+ request: data
+ });
+ resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", resolveContext, (err, result) => {
+ if(err) return callback(err);
+
+ // Don't allow other aliasing or raw request
+ if(result === undefined) return callback(null, null);
+ callback(null, result);
+ });
+ });
+ }
+};
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