Fix overeager JS filtering in polyglot mode.

Fixes #363

Author: tmcw

index.js

@@ -102,7 +102,7 @@ module.exports = function (indexes, options, callback) {
         filterAccess(options.access,
           hierarchy(
             inputs
-              .filter(filterJS(options.extension))
+              .filter(filterJS(options.extension, options.polyglot))
               .reduce(function (memo, file) {
                 return memo.concat(parseFn(file));
               }, [])
@@ -160,7 +160,7 @@ module.exports.lint = function lint(indexes, options, callback) {
     callback(null,
       formatLint(hierarchy(
         inputs
-          .filter(filterJS(options.extension))
+          .filter(filterJS(options.extension, options.polyglot))
           .reduce(function (memo, file) {
             return memo.concat(parseFn(file));
           }, [])

lib/filter_js.js

@@ -9,12 +9,20 @@ var path = require('path');
  * This creates a filter function for use with Array.prototype.filter, which
  * expect as argument a file as an objectg with the 'file' property
  *
- * @public
+ * @private
  * @param {String|Array} extensions to be filtered
+ * @param {boolean} allowAll ignore the entire extension check and always
+ * pass through files. This is used by the polglot mode.
  * @return {Function} a filter function, this function returns true if the input filename extension
  * is in the extension whitelist
  */
-function filterJS(extensions) {
+function filterJS(extensions, allowAll) {
+
+  if (allowAll) {
+    return function () {
+      return true;
+    };
+  }
 
   extensions = extensions || [];
   if (typeof extensions === 'string') {

test/bin.js

@@ -58,6 +58,28 @@ test('defaults to parsing package.json main', function (t) {
   });
 }, options);
 
+test('polyglot mode', function (t) {
+  documentation(['build fixture/polyglot/blend.cpp --polyglot'],
+    function (err, data) {
+      t.ifError(err);
+      if (process.env.UPDATE) {
+        fs.writeFileSync(
+          path.resolve(__dirname,
+            'fixture',
+            'polyglot/blend.json'), JSON.stringify(normalize(data), null, 2), 'utf8');
+      }
+      var expected = fs.readFileSync(
+        path.resolve(__dirname,
+          'fixture',
+          'polyglot/blend.json'), 'utf8');
+      t.deepEqual(
+        normalize(data),
+        JSON.parse(expected),
+        'parsed C++ file');
+      t.end();
+    });
+}, options);
+
 test('accepts config file', function (t) {
   documentation(['build fixture/sorting/input.js -c fixture/config.json'],
     function (err, data) {

test/fixture/polyglot/blend.json

@@ -0,0 +1,86 @@
+[
+  {
+    "description": "This method moves a hex to a color",
+    "tags": [
+      {
+        "title": "name",
+        "description": null,
+        "lineNumber": 2,
+        "name": "hexToUInt32Color"
+      },
+      {
+        "title": "param",
+        "description": null,
+        "lineNumber": 3,
+        "type": {
+          "type": "NameExpression",
+          "name": "string"
+        },
+        "name": "hex"
+      },
+      {
+        "title": "returns",
+        "description": "color",
+        "lineNumber": 4,
+        "type": {
+          "type": "NameExpression",
+          "name": "number"
+        }
+      }
+    ],
+    "loc": {
+      "start": {
+        "line": 35,
+        "column": 1
+      },
+      "end": {
+        "line": 40,
+        "column": 3
+      }
+    },
+    "context": {
+      "loc": {
+        "start": {
+          "line": 35,
+          "column": 1
+        },
+        "end": {
+          "line": 40,
+          "column": 3
+        }
+      },
+      "file": "[path]"
+    },
+    "name": "hexToUInt32Color",
+    "params": [
+      {
+        "title": "param",
+        "description": null,
+        "lineNumber": 3,
+        "type": {
+          "type": "NameExpression",
+          "name": "string"
+        },
+        "name": "hex"
+      }
+    ],
+    "returns": [
+      {
+        "title": "returns",
+        "description": "color",
+        "lineNumber": 4,
+        "type": {
+          "type": "NameExpression",
+          "name": "number"
+        }
+      }
+    ],
+    "members": {
+      "instance": [],
+      "static": []
+    },
+    "path": [
+      "hexToUInt32Color"
+    ]
+  }
+]