Fixes #3112

- also fixes browser test broken with lowercase API change

lib/less/parser/parser.js

@@ -2,7 +2,8 @@ var LessError = require('../less-error'),
     tree = require("../tree"),
     visitors = require("../visitors"),
     getParserInput = require("./parser-input"),
-    utils = require("../utils");
+    utils = require("../utils"),
+    functionRegistry = require('../functions/function-registry');
 
 //
 // less.js - parser
@@ -185,6 +186,7 @@ var Parser = function Parser(context, imports, fileInfo) {
                 tree.Node.prototype.rootNode = root;
                 root.root = true;
                 root.firstRoot = true;
+                // root.functionRegistry = functionRegistry.inherit();
                 
             } catch (e) {
                 return callback(new LessError(e, imports, fileInfo.filename));

test/browser/less/plugin/plugin.js

@@ -1,7 +1,7 @@
 registerPlugin({
     install: function(less, pluginManager, functions) {
         functions.add('func', function() {
-            return less.Anonymous(location.href);
+            return less.anonymous(location.href);
         });
     }
 });

test/index.js

@@ -58,4 +58,5 @@ testMap.forEach(function(args) {
 lessTester.testSyncronous({syncImport: true}, "import");
 lessTester.testSyncronous({syncImport: true}, "css");
 lessTester.testNoOptions();
+lessTester.testJSImport();
 lessTester.finished();

test/less-test.js

@@ -155,6 +155,24 @@ module.exports = function() {
         });
     }
 
+    // https://github.com/less/less.js/issues/3112
+    function testJSImport() {
+        process.stdout.write("- Testing root function registry");
+        less.functions.functionRegistry.add('ext', function() { 
+            return new less.tree.Anonymous('file');
+        });
+        var expected = "@charset \"utf-8\";\n";
+        toCSS({}, require('path').join(process.cwd(), 'test/less/root-registry/root.less'), function(error, output) {
+            if (error) {
+                return fail("ERROR: " + error);
+            }
+            if (output.css === expected) {
+                return ok('OK');
+            }
+            difference("FAIL", expected, output.css);
+        });
+    }
+
     function globalReplacements(input, directory, filename) {
         var path = require('path');
         var p = filename ? path.join(path.dirname(filename), '/') : path.join(process.cwd(), directory),
@@ -422,6 +440,7 @@ module.exports = function() {
         testEmptySourcemap: testEmptySourcemap,
         testNoOptions: testNoOptions,
         prepBomTest: prepBomTest,
+        testJSImport: testJSImport,
         finished: finished
     };
 };

test/less/root-registry/file.less

@@ -0,0 +1 @@
+@charset "utf-8";

test/less/root-registry/root.less

@@ -0,0 +1,3 @@
+// https://github.com/less/less.js/issues/3112
+@file: ext();
+@import '@{file}';