vendor/handlebars/lib/handlebars/runtime.js in handlebars-0.3.2 vs vendor/handlebars/lib/handlebars/runtime.js in handlebars-0.4.0

@@ -18,16 +18,36 @@
           programWrapper = this.programs[i] = Handlebars.VM.program(fn);
           return programWrapper;
         }
       },
       programWithDepth: Handlebars.VM.programWithDepth,
-      noop: Handlebars.VM.noop
+      noop: Handlebars.VM.noop,
+      compilerInfo: null
     };
 
     return function(context, options) {
       options = options || {};
-      return templateSpec.call(container, Handlebars, context, options.helpers, options.partials, options.data);
+      var result = templateSpec.call(container, Handlebars, context, options.helpers, options.partials, options.data);
+
+      var compilerInfo = container.compilerInfo || [],
+          compilerRevision = compilerInfo[0] || 1,
+          currentRevision = Handlebars.COMPILER_REVISION;
+
+      if (compilerRevision !== currentRevision) {
+        if (compilerRevision < currentRevision) {
+          var runtimeVersions = Handlebars.REVISION_CHANGES[currentRevision],
+              compilerVersions = Handlebars.REVISION_CHANGES[compilerRevision];
+          throw "Template was precompiled with an older version of Handlebars than the current runtime. "+
+                "Please update your precompiler to a newer version ("+runtimeVersions+") or downgrade your runtime to an older version ("+compilerVersions+").";
+        } else {
+          // Use the embedded version info since the runtime doesn't know about this revision yet
+          throw "Template was precompiled with a newer version of Handlebars than the current runtime. "+
+                "Please update your runtime to a newer version ("+compilerInfo[1]+").";
+        }
+      }
+
+      return result;
     };
   },
 
   programWithDepth: function(fn, data, $depth) {
     var args = Array.prototype.slice.call(arguments, 2);
@@ -54,10 +74,10 @@
     } else if(partial instanceof Function) {
       return partial(context, options);
     } else if (!Handlebars.compile) {
       throw new Handlebars.Exception("The partial " + name + " could not be compiled when running in runtime-only mode");
     } else {
-      partials[name] = Handlebars.compile(partial);
+      partials[name] = Handlebars.compile(partial, {data: data !== undefined});
       return partials[name](context, options);
     }
   }
 };