Provide stubbed visitor implementation

Part of #889

1 files changed, 58 insertions, 2 deletions

diff --git a/lib/handlebars/compiler/visitor.js b/lib/handlebars/compiler/visitor.js
index 6a0373e..a4eb2b4 100644
--- a/lib/handlebars/compiler/visitor.js
+++ b/lib/handlebars/compiler/visitor.js
@@ -4,8 +4,64 @@ Visitor.prototype = {
   constructor: Visitor,
 
   accept: function(object) {
-    return this[object.type](object);
-  }
+    return object && this[object.type] && this[object.type](object);
+  },
+
+  program: function(program) {
+    var statements = program.statements,
+        i, l;
+
+    for(i=0, l=statements.length; i<l; i++) {
+      this.accept(statements[i]);
+    }
+  },
+
+  block: function(block) {
+    this.accept(block.mustache);
+    this.accept(block.program);
+    this.accept(block.inverse);
+  },
+
+  mustache: function(mustache) {
+    this.accept(mustache.sexpr);
+  },
+
+  sexpr: function(sexpr) {
+    var params = sexpr.params, paramStrings = [], hash;
+
+    this.accept(sexpr.id);
+    for(var i=0, l=params.length; i<l; i++) {
+      this.accept(params[i]);
+    }
+    this.accept(sexpr.hash);
+  },
+
+  hash: function(hash) {
+    var pairs = hash.pairs;
+
+    for(var i=0, l=pairs.length; i<l; i++) {
+      this.accept(pairs[i][1]);
+    }
+  },
+
+  partial: function(partial) {
+    this.accept(partial.partialName);
+    this.accept(partial.context);
+    this.accept(partial.hash);
+  },
+  PARTIAL_NAME: function(partialName) {},
+
+  DATA: function(data) {
+    this.accept(data.id);
+  },
+
+  STRING: function(string) {},
+  NUMBER: function(number) {},
+  BOOLEAN: function(bool) {},
+  ID: function(id) {},
+
+  content: function(content) {},
+  comment: function(comment) {}
 };
 
 export default Visitor;