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/enhanced-resolve/lib/AliasFieldPlugin.js | |
| parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
node_modules
Diffstat (limited to 'node_modules/enhanced-resolve/lib/AliasFieldPlugin.js')
| -rw-r--r-- | node_modules/enhanced-resolve/lib/AliasFieldPlugin.js | 51 |
1 files changed, 51 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 000000000..70b6b97d6 --- /dev/null +++ b/node_modules/enhanced-resolve/lib/AliasFieldPlugin.js @@ -0,0 +1,51 @@ +/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+
+var DescriptionFileUtils = require("./DescriptionFileUtils");
+var createInnerCallback = require("./createInnerCallback");
+var getInnerRequest = require("./getInnerRequest");
+
+function AliasFieldPlugin(source, field, target) {
+ this.source = source;
+ this.field = field;
+ this.target = target;
+}
+module.exports = AliasFieldPlugin;
+
+AliasFieldPlugin.prototype.apply = function(resolver) {
+ var target = this.target;
+ var field = this.field;
+ resolver.plugin(this.source, function(request, callback) {
+ if(!request.descriptionFileData) return callback();
+ var innerRequest = getInnerRequest(resolver, request);
+ if(!innerRequest) return callback();
+ var fieldData = DescriptionFileUtils.getField(request.descriptionFileData, field);
+ if(typeof fieldData !== "object") {
+ if(callback.log) callback.log("Field '" + field + "' doesn't contain a valid alias configuration");
+ return callback();
+ }
+ var data1 = fieldData[innerRequest];
+ var data2 = fieldData[innerRequest.replace(/^\.\//, "")];
+ var data = typeof data1 !== "undefined" ? data1 : data2;
+ if(data === innerRequest) return callback();
+ if(data === undefined) return callback();
+ if(data === false) {
+ var ignoreObj = Object.assign({}, request, {
+ path: false
+ });
+ return callback(null, ignoreObj);
+ }
+ var obj = Object.assign({}, request, {
+ path: request.descriptionFileRoot,
+ request: data
+ });
+ resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", createInnerCallback(function(err, result) {
+ if(arguments.length > 0) return callback(err, result);
+
+ // Don't allow other aliasing or raw request
+ callback(null, null);
+ }, callback));
+ });
+};
|