make it illegal to include imvu.js twice

imvu · Oct 24, 2014 · 2b86a48 · 2b86a48
1 parent 6c5c3ba
commit 2b86a48
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Showing 3 changed files with 10 additions and 0 deletions.
diff --git a/SConstruct b/SConstruct
@@ -5,6 +5,7 @@ SetOption('num_jobs', multiprocessing.cpu_count())
 print "running with -j", GetOption('num_jobs')
 
 FIRST_SOURCES = [
+    'src/includeguard.js',
     'src/polyfill.js',
     'third-party/es5-shim/es5-shim.js',
     'third-party/es5-shim/es5-sham.js',

diff --git a/src/includeguard.js b/src/includeguard.js
@@ -0,0 +1,7 @@
+/*global __included_imvujs__:true*/
+(function() {
+    if (typeof __included_imvujs__ !== "undefined" && __included_imvujs__) {
+        throw EvalError("Do not include imvu.js twice.");
+    }
+    __included_imvujs__ = true;
+})();
diff --git a/tests/publicAPI.test.js b/tests/publicAPI.test.js
@@ -30,6 +30,8 @@
         '__filename',
         '__dirname',
 
+        '__included_imvujs__',
+
         // browser-ish symbols prevented in tests
         'requestAnimationFrame',