modified

build/node_modules/adjust-sourcemap-loader/lib/process/test-codec.js

@@ -0,0 +1,37 @@
+'use strict';
+
+var assert = require('assert');
+
+/**
+ * Reducer function that converts a codec list to a hash.
+ * @throws Error on bad codec
+ * @param {{name:string, decode:function, encode:function, root:function}} candidate A possible codec
+ * @returns True where an error is not thrown
+ */
+function testCodec(candidate) {
+  assert(
+    !!candidate && (typeof candidate === 'object'),
+    'Codec must be an object'
+  );
+  assert(
+    (typeof candidate.name === 'string') && /^[\w-]+$/.test(candidate.name),
+    'Codec.name must be a kebab-case string'
+  );
+  assert(
+    (typeof candidate.decode === 'function') && (candidate.decode.length === 1),
+    'Codec.decode must be a function that accepts a single source string'
+  );
+  assert(
+    (typeof candidate.encode === 'undefined') ||
+    ((typeof candidate.encode === 'function') && (candidate.encode.length === 1)),
+    'Codec.encode must be a function that accepts a single absolute path string, or else be omitted'
+  );
+  assert(
+    (typeof candidate.root === 'undefined') ||
+    (typeof candidate.root === 'function') && (candidate.root.length === 0),
+    'Codec.root must be a function that accepts no arguments, or else be omitted'
+  );
+  return true;
+}
+
+module.exports = testCodec;