1 files changed, 21 insertions, 0 deletions
diff --git a/tools/test-js-optimizer.js b/tools/test-js-optimizer.js
index 8c2ad183..8d10d222 100644
--- a/tools/test-js-optimizer.js
+++ b/tools/test-js-optimizer.js
@@ -160,4 +160,25 @@ function hoisting() {
     somethingElse();
   }
 }
+var FS = {
+  absolutePath: function(relative, base) { // Don't touch this!
+    if (typeof relative !== 'string') return null;
+    if (base === undefined) base = FS.currentPath;
+    if (relative && relative[0] == '/') base = '';
+    var full = base + '/' + relative;
+    var parts = full.split('/').reverse();
+    var absolute = [''];
+    while (parts.length) {
+      var part = parts.pop();
+      if (part == '' || part == '.') {
+        // Nothing.
+      } else if (part == '..') {
+        if (absolute.length > 1) absolute.pop();
+      } else {
+        absolute.push(part);
+      }
+    }
+    return absolute.length == 1 ? '/' : absolute.join('/');
+  }
+}
 // EMSCRIPTEN_GENERATED_FUNCTIONS: ["abc", "xyz", "xyz2", "expr", "loopy", "bits", "maths", "hoisting"]