Merge branch 'iife'

1 files changed, 1044 insertions, 1047 deletions

diff --git a/lib/handlebars/compiler/compiler.js b/lib/handlebars/compiler/compiler.js
index 8400804..b57386e 100644
--- a/lib/handlebars/compiler/compiler.js
+++ b/lib/handlebars/compiler/compiler.js
@@ -7,1225 +7,1222 @@ compilerbase.attach(Handlebars);
 // BEGIN(BROWSER)
 
 /*jshint eqnull:true*/
-Handlebars.Compiler = function() {};
-Handlebars.JavaScriptCompiler = function() {};
+var Compiler = Handlebars.Compiler = function() {};
+var JavaScriptCompiler = Handlebars.JavaScriptCompiler = function() {};
 
-(function(Compiler, JavaScriptCompiler) {
-  // the foundHelper register will disambiguate helper lookup from finding a
-  // function in a context. This is necessary for mustache compatibility, which
-  // requires that context functions in blocks are evaluated by blockHelperMissing,
-  // and then proceed as if the resulting value was provided to blockHelperMissing.
+// the foundHelper register will disambiguate helper lookup from finding a
+// function in a context. This is necessary for mustache compatibility, which
+// requires that context functions in blocks are evaluated by blockHelperMissing,
+// and then proceed as if the resulting value was provided to blockHelperMissing.
 
-  Compiler.prototype = {
-    compiler: Compiler,
+Compiler.prototype = {
+  compiler: Compiler,
 
-    disassemble: function() {
-      var opcodes = this.opcodes, opcode, out = [], params, param;
+  disassemble: function() {
+    var opcodes = this.opcodes, opcode, out = [], params, param;
 
-      for (var i=0, l=opcodes.length; i<l; i++) {
-        opcode = opcodes[i];
+    for (var i=0, l=opcodes.length; i<l; i++) {
+      opcode = opcodes[i];
 
-        if (opcode.opcode === 'DECLARE') {
-          out.push("DECLARE " + opcode.name + "=" + opcode.value);
-        } else {
-          params = [];
-          for (var j=0; j<opcode.args.length; j++) {
-            param = opcode.args[j];
-            if (typeof param === "string") {
-              param = "\"" + param.replace("\n", "\\n") + "\"";
-            }
-            params.push(param);
+      if (opcode.opcode === 'DECLARE') {
+        out.push("DECLARE " + opcode.name + "=" + opcode.value);
+      } else {
+        params = [];
+        for (var j=0; j<opcode.args.length; j++) {
+          param = opcode.args[j];
+          if (typeof param === "string") {
+            param = "\"" + param.replace("\n", "\\n") + "\"";
           }
-          out.push(opcode.opcode + " " + params.join(" "));
+          params.push(param);
         }
+        out.push(opcode.opcode + " " + params.join(" "));
       }
+    }
 
-      return out.join("\n");
-    },
-    equals: function(other) {
-      var len = this.opcodes.length;
-      if (other.opcodes.length !== len) {
+    return out.join("\n");
+  },
+  equals: function(other) {
+    var len = this.opcodes.length;
+    if (other.opcodes.length !== len) {
+      return false;
+    }
+
+    for (var i = 0; i < len; i++) {
+      var opcode = this.opcodes[i],
+          otherOpcode = other.opcodes[i];
+      if (opcode.opcode !== otherOpcode.opcode || opcode.args.length !== otherOpcode.args.length) {
         return false;
       }
-
-      for (var i = 0; i < len; i++) {
-        var opcode = this.opcodes[i],
-            otherOpcode = other.opcodes[i];
-        if (opcode.opcode !== otherOpcode.opcode || opcode.args.length !== otherOpcode.args.length) {
+      for (var j = 0; j < opcode.args.length; j++) {
+        if (opcode.args[j] !== otherOpcode.args[j]) {
           return false;
         }
-        for (var j = 0; j < opcode.args.length; j++) {
-          if (opcode.args[j] !== otherOpcode.args[j]) {
-            return false;
-          }
-        }
       }
-      return true;
-    },
-
-    guid: 0,
-
-    compile: function(program, options) {
-      this.children = [];
-      this.depths = {list: []};
-      this.options = options;
-
-      // These changes will propagate to the other compiler components
-      var knownHelpers = this.options.knownHelpers;
-      this.options.knownHelpers = {
-        'helperMissing': true,
-        'blockHelperMissing': true,
-        'each': true,
-        'if': true,
-        'unless': true,
-        'with': true,
-        'log': true
-      };
-      if (knownHelpers) {
-        for (var name in knownHelpers) {
-          this.options.knownHelpers[name] = knownHelpers[name];
-        }
+    }
+    return true;
+  },
+
+  guid: 0,
+
+  compile: function(program, options) {
+    this.children = [];
+    this.depths = {list: []};
+    this.options = options;
+
+    // These changes will propagate to the other compiler components
+    var knownHelpers = this.options.knownHelpers;
+    this.options.knownHelpers = {
+      'helperMissing': true,
+      'blockHelperMissing': true,
+      'each': true,
+      'if': true,
+      'unless': true,
+      'with': true,
+      'log': true
+    };
+    if (knownHelpers) {
+      for (var name in knownHelpers) {
+        this.options.knownHelpers[name] = knownHelpers[name];
       }
+    }
 
-      return this.program(program);
-    },
-
-    accept: function(node) {
-      return this[node.type](node);
-    },
-
-    program: function(program) {
-      var statements = program.statements, statement;
-      this.opcodes = [];
+    return this.program(program);
+  },
 
-      for(var i=0, l=statements.length; i<l; i++) {
-        statement = statements[i];
-        this[statement.type](statement);
-      }
-      this.isSimple = l === 1;
+  accept: function(node) {
+    return this[node.type](node);
+  },
 
-      this.depths.list = this.depths.list.sort(function(a, b) {
-        return a - b;
-      });
+  program: function(program) {
+    var statements = program.statements, statement;
+    this.opcodes = [];
 
-      return this;
-    },
+    for(var i=0, l=statements.length; i<l; i++) {
+      statement = statements[i];
+      this[statement.type](statement);
+    }
+    this.isSimple = l === 1;
 
-    compileProgram: function(program) {
-      var result = new this.compiler().compile(program, this.options);
-      var guid = this.guid++, depth;
+    this.depths.list = this.depths.list.sort(function(a, b) {
+      return a - b;
+    });
 
-      this.usePartial = this.usePartial || result.usePartial;
+    return this;
+  },
 
-      this.children[guid] = result;
+  compileProgram: function(program) {
+    var result = new this.compiler().compile(program, this.options);
+    var guid = this.guid++, depth;
 
-      for(var i=0, l=result.depths.list.length; i<l; i++) {
-        depth = result.depths.list[i];
+    this.usePartial = this.usePartial || result.usePartial;
 
-        if(depth < 2) { continue; }
-        else { this.addDepth(depth - 1); }
-      }
+    this.children[guid] = result;
 
-      return guid;
-    },
+    for(var i=0, l=result.depths.list.length; i<l; i++) {
+      depth = result.depths.list[i];
 
-    block: function(block) {
-      var mustache = block.mustache,
-          program = block.program,
-          inverse = block.inverse;
+      if(depth < 2) { continue; }
+      else { this.addDepth(depth - 1); }
+    }
 
-      if (program) {
-        program = this.compileProgram(program);
-      }
+    return guid;
+  },
 
-      if (inverse) {
-        inverse = this.compileProgram(inverse);
-      }
+  block: function(block) {
+    var mustache = block.mustache,
+        program = block.program,
+        inverse = block.inverse;
 
-      var type = this.classifyMustache(mustache);
+    if (program) {
+      program = this.compileProgram(program);
+    }
 
-      if (type === "helper") {
-        this.helperMustache(mustache, program, inverse);
-      } else if (type === "simple") {
-        this.simpleMustache(mustache);
+    if (inverse) {
+      inverse = this.compileProgram(inverse);
+    }
 
-        // now that the simple mustache is resolved, we need to
-        // evaluate it by executing `blockHelperMissing`
-        this.opcode('pushProgram', program);
-        this.opcode('pushProgram', inverse);
-        this.opcode('emptyHash');
-        this.opcode('blockValue');
-      } else {
-        this.ambiguousMustache(mustache, program, inverse);
-
-        // now that the simple mustache is resolved, we need to
-        // evaluate it by executing `blockHelperMissing`
-        this.opcode('pushProgram', program);
-        this.opcode('pushProgram', inverse);
-        this.opcode('emptyHash');
-        this.opcode('ambiguousBlockValue');
-      }
+    var type = this.classifyMustache(mustache);
 
-      this.opcode('append');
-    },
+    if (type === "helper") {
+      this.helperMustache(mustache, program, inverse);
+    } else if (type === "simple") {
+      this.simpleMustache(mustache);
 
-    hash: function(hash) {
-      var pairs = hash.pairs, pair, val;
+      // now that the simple mustache is resolved, we need to
+      // evaluate it by executing `blockHelperMissing`
+      this.opcode('pushProgram', program);
+      this.opcode('pushProgram', inverse);
+      this.opcode('emptyHash');
+      this.opcode('blockValue');
+    } else {
+      this.ambiguousMustache(mustache, program, inverse);
 
-      this.opcode('pushHash');
+      // now that the simple mustache is resolved, we need to
+      // evaluate it by executing `blockHelperMissing`
+      this.opcode('pushProgram', program);
+      this.opcode('pushProgram', inverse);
+      this.opcode('emptyHash');
+      this.opcode('ambiguousBlockValue');
+    }
 
-      for(var i=0, l=pairs.length; i<l; i++) {
-        pair = pairs[i];
-        val  = pair[1];
+    this.opcode('append');
+  },
 
-        if (this.options.stringParams) {
-          this.opcode('pushStringParam', val.stringModeValue, val.type);
-        } else {
-          this.accept(val);
-        }
+  hash: function(hash) {
+    var pairs = hash.pairs, pair, val;
 
-        this.opcode('assignToHash', pair[0]);
-      }
-      this.opcode('popHash');
-    },
+    this.opcode('pushHash');
 
-    partial: function(partial) {
-      var partialName = partial.partialName;
-      this.usePartial = true;
+    for(var i=0, l=pairs.length; i<l; i++) {
+      pair = pairs[i];
+      val  = pair[1];
 
-      if(partial.context) {
-        this.ID(partial.context);
+      if (this.options.stringParams) {
+        this.opcode('pushStringParam', val.stringModeValue, val.type);
       } else {
-        this.opcode('push', 'depth0');
+        this.accept(val);
       }
 
-      this.opcode('invokePartial', partialName.name);
-      this.opcode('append');
-    },
+      this.opcode('assignToHash', pair[0]);
+    }
+    this.opcode('popHash');
+  },
 
-    content: function(content) {
-      this.opcode('appendContent', content.string);
-    },
+  partial: function(partial) {
+    var partialName = partial.partialName;
+    this.usePartial = true;
 
-    mustache: function(mustache) {
-      var options = this.options;
-      var type = this.classifyMustache(mustache);
+    if(partial.context) {
+      this.ID(partial.context);
+    } else {
+      this.opcode('push', 'depth0');
+    }
 
-      if (type === "simple") {
-        this.simpleMustache(mustache);
-      } else if (type === "helper") {
-        this.helperMustache(mustache);
-      } else {
-        this.ambiguousMustache(mustache);
-      }
+    this.opcode('invokePartial', partialName.name);
+    this.opcode('append');
+  },
 
-      if(mustache.escaped && !options.noEscape) {
-        this.opcode('appendEscaped');
-      } else {
-        this.opcode('append');
-      }
-    },
+  content: function(content) {
+    this.opcode('appendContent', content.string);
+  },
 
-    ambiguousMustache: function(mustache, program, inverse) {
-      var id = mustache.id,
-          name = id.parts[0],
-          isBlock = program != null || inverse != null;
+  mustache: function(mustache) {
+    var options = this.options;
+    var type = this.classifyMustache(mustache);
 
-      this.opcode('getContext', id.depth);
+    if (type === "simple") {
+      this.simpleMustache(mustache);
+    } else if (type === "helper") {
+      this.helperMustache(mustache);
+    } else {
+      this.ambiguousMustache(mustache);
+    }
 
-      this.opcode('pushProgram', program);
-      this.opcode('pushProgram', inverse);
+    if(mustache.escaped && !options.noEscape) {
+      this.opcode('appendEscaped');
+    } else {
+      this.opcode('append');
+    }
+  },
 
-      this.opcode('invokeAmbiguous', name, isBlock);
-    },
+  ambiguousMustache: function(mustache, program, inverse) {
+    var id = mustache.id,
+        name = id.parts[0],
+        isBlock = program != null || inverse != null;
 
-    simpleMustache: function(mustache) {
-      var id = mustache.id;
+    this.opcode('getContext', id.depth);
 
-      if (id.type === 'DATA') {
-        this.DATA(id);
-      } else if (id.parts.length) {
-        this.ID(id);
-      } else {
-        // Simplified ID for `this`
-        this.addDepth(id.depth);
-        this.opcode('getContext', id.depth);
-        this.opcode('pushContext');
-      }
+    this.opcode('pushProgram', program);
+    this.opcode('pushProgram', inverse);
 
-      this.opcode('resolvePossibleLambda');
-    },
+    this.opcode('invokeAmbiguous', name, isBlock);
+  },
 
-    helperMustache: function(mustache, program, inverse) {
-      var params = this.setupFullMustacheParams(mustache, program, inverse),
-          name = mustache.id.parts[0];
+  simpleMustache: function(mustache) {
+    var id = mustache.id;
 
-      if (this.options.knownHelpers[name]) {
-        this.opcode('invokeKnownHelper', params.length, name);
-      } else if (this.knownHelpersOnly) {
-        throw new Error("You specified knownHelpersOnly, but used the unknown helper " + name);
-      } else {
-        this.opcode('invokeHelper', params.length, name);
-      }
-    },
-
-    ID: function(id) {
+    if (id.type === 'DATA') {
+      this.DATA(id);
+    } else if (id.parts.length) {
+      this.ID(id);
+    } else {
+      // Simplified ID for `this`
       this.addDepth(id.depth);
       this.opcode('getContext', id.depth);
+      this.opcode('pushContext');
+    }
 
-      var name = id.parts[0];
-      if (!name) {
-        this.opcode('pushContext');
-      } else {
-        this.opcode('lookupOnContext', id.parts[0]);
-      }
-
-      for(var i=1, l=id.parts.length; i<l; i++) {
-        this.opcode('lookup', id.parts[i]);
-      }
-    },
+    this.opcode('resolvePossibleLambda');
+  },
 
-    DATA: function(data) {
-      this.options.data = true;
-      this.opcode('lookupData', data.id);
-    },
+  helperMustache: function(mustache, program, inverse) {
+    var params = this.setupFullMustacheParams(mustache, program, inverse),
+        name = mustache.id.parts[0];
 
-    STRING: function(string) {
-      this.opcode('pushString', string.string);
-    },
+    if (this.options.knownHelpers[name]) {
+      this.opcode('invokeKnownHelper', params.length, name);
+    } else if (this.knownHelpersOnly) {
+      throw new Error("You specified knownHelpersOnly, but used the unknown helper " + name);
+    } else {
+      this.opcode('invokeHelper', params.length, name);
+    }
+  },
 
-    INTEGER: function(integer) {
-      this.opcode('pushLiteral', integer.integer);
-    },
+  ID: function(id) {
+    this.addDepth(id.depth);
+    this.opcode('getContext', id.depth);
 
-    BOOLEAN: function(bool) {
-      this.opcode('pushLiteral', bool.bool);
-    },
+    var name = id.parts[0];
+    if (!name) {
+      this.opcode('pushContext');
+    } else {
+      this.opcode('lookupOnContext', id.parts[0]);
+    }
 
-    comment: function() {},
+    for(var i=1, l=id.parts.length; i<l; i++) {
+      this.opcode('lookup', id.parts[i]);
+    }
+  },
 
-    // HELPERS
-    opcode: function(name) {
-      this.opcodes.push({ opcode: name, args: [].slice.call(arguments, 1) });
-    },
+  DATA: function(data) {
+    this.options.data = true;
+    this.opcode('lookupData', data.id);
+  },
 
-    declare: function(name, value) {
-      this.opcodes.push({ opcode: 'DECLARE', name: name, value: value });
-    },
+  STRING: function(string) {
+    this.opcode('pushString', string.string);
+  },
 
-    addDepth: function(depth) {
-      if(isNaN(depth)) { throw new Error("EWOT"); }
-      if(depth === 0) { return; }
+  INTEGER: function(integer) {
+    this.opcode('pushLiteral', integer.integer);
+  },
 
-      if(!this.depths[depth]) {
-        this.depths[depth] = true;
-        this.depths.list.push(depth);
-      }
-    },
+  BOOLEAN: function(bool) {
+    this.opcode('pushLiteral', bool.bool);
+  },
 
-    classifyMustache: function(mustache) {
-      var isHelper   = mustache.isHelper;
-      var isEligible = mustache.eligibleHelper;
-      var options    = this.options;
+  comment: function() {},
 
-      // if ambiguous, we can possibly resolve the ambiguity now
-      if (isEligible && !isHelper) {
-        var name = mustache.id.parts[0];
+  // HELPERS
+  opcode: function(name) {
+    this.opcodes.push({ opcode: name, args: [].slice.call(arguments, 1) });
+  },
 
-        if (options.knownHelpers[name]) {
-          isHelper = true;
-        } else if (options.knownHelpersOnly) {
-          isEligible = false;
-        }
-      }
+  declare: function(name, value) {
+    this.opcodes.push({ opcode: 'DECLARE', name: name, value: value });
+  },
 
-      if (isHelper) { return "helper"; }
-      else if (isEligible) { return "ambiguous"; }
-      else { return "simple"; }
-    },
+  addDepth: function(depth) {
+    if(isNaN(depth)) { throw new Error("EWOT"); }
+    if(depth === 0) { return; }
 
-    pushParams: function(params) {
-      var i = params.length, param;
+    if(!this.depths[depth]) {
+      this.depths[depth] = true;
+      this.depths.list.push(depth);
+    }
+  },
 
-      while(i--) {
-        param = params[i];
+  classifyMustache: function(mustache) {
+    var isHelper   = mustache.isHelper;
+    var isEligible = mustache.eligibleHelper;
+    var options    = this.options;
 
-        if(this.options.stringParams) {
-          if(param.depth) {
-            this.addDepth(param.depth);
-          }
+    // if ambiguous, we can possibly resolve the ambiguity now
+    if (isEligible && !isHelper) {
+      var name = mustache.id.parts[0];
 
-          this.opcode('getContext', param.depth || 0);
-          this.opcode('pushStringParam', param.stringModeValue, param.type);
-        } else {
-          this[param.type](param);
-        }
+      if (options.knownHelpers[name]) {
+        isHelper = true;
+      } else if (options.knownHelpersOnly) {
+        isEligible = false;
       }
-    },
+    }
 
-    setupMustacheParams: function(mustache) {
-      var params = mustache.params;
-      this.pushParams(params);
+    if (isHelper) { return "helper"; }
+    else if (isEligible) { return "ambiguous"; }
+    else { return "simple"; }
+  },
 
-      if(mustache.hash) {
-        this.hash(mustache.hash);
-      } else {
-        this.opcode('emptyHash');
-      }
-
-      return params;
-    },
+  pushParams: function(params) {
+    var i = params.length, param;
 
-    // this will replace setupMustacheParams when we're done
-    setupFullMustacheParams: function(mustache, program, inverse) {
-      var params = mustache.params;
-      this.pushParams(params);
+    while(i--) {
+      param = params[i];
 
-      this.opcode('pushProgram', program);
-      this.opcode('pushProgram', inverse);
+      if(this.options.stringParams) {
+        if(param.depth) {
+          this.addDepth(param.depth);
+        }
 
-      if(mustache.hash) {
-        this.hash(mustache.hash);
+        this.opcode('getContext', param.depth || 0);
+        this.opcode('pushStringParam', param.stringModeValue, param.type);
       } else {
-        this.opcode('emptyHash');
+        this[param.type](param);
       }
+    }
+  },
+
+  setupMustacheParams: function(mustache) {
+    var params = mustache.params;
+    this.pushParams(params);
 
-      return params;
+    if(mustache.hash) {
+      this.hash(mustache.hash);
+    } else {
+      this.opcode('emptyHash');
     }
-  };
 
-  var Literal = function(value) {
-    this.value = value;
-  };
+    return params;
+  },
 
-  JavaScriptCompiler.prototype = {
-    // PUBLIC API: You can override these methods in a subclass to provide
-    // alternative compiled forms for name lookup and buffering semantics
-    nameLookup: function(parent, name /* , type*/) {
-      if (/^[0-9]+$/.test(name)) {
-        return parent + "[" + name + "]";
-      } else if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
-        return parent + "." + name;
-      }
-      else {
-        return parent + "['" + name + "']";
-      }
-    },
+  // this will replace setupMustacheParams when we're done
+  setupFullMustacheParams: function(mustache, program, inverse) {
+    var params = mustache.params;
+    this.pushParams(params);
 
-    appendToBuffer: function(string) {
-      if (this.environment.isSimple) {
-        return "return " + string + ";";
-      } else {
-        return {
-          appendToBuffer: true,
-          content: string,
-          toString: function() { return "buffer += " + string + ";"; }
-        };
-      }
-    },
+    this.opcode('pushProgram', program);
+    this.opcode('pushProgram', inverse);
 
-    initializeBuffer: function() {
-      return this.quotedString("");
-    },
+    if(mustache.hash) {
+      this.hash(mustache.hash);
+    } else {
+      this.opcode('emptyHash');
+    }
 
-    namespace: "Handlebars",
-    // END PUBLIC API
+    return params;
+  }
+};
 
-    compile: function(environment, options, context, asObject) {
-      this.environment = environment;
-      this.options = options || {};
+var Literal = function(value) {
+  this.value = value;
+};
 
-      Handlebars.log(Handlebars.logger.DEBUG, this.environment.disassemble() + "\n\n");
+JavaScriptCompiler.prototype = {
+  // PUBLIC API: You can override these methods in a subclass to provide
+  // alternative compiled forms for name lookup and buffering semantics
+  nameLookup: function(parent, name /* , type*/) {
+    if (/^[0-9]+$/.test(name)) {
+      return parent + "[" + name + "]";
+    } else if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
+      return parent + "." + name;
+    }
+    else {
+      return parent + "['" + name + "']";
+    }
+  },
 
-      this.name = this.environment.name;
-      this.isChild = !!context;
-      this.context = context || {
-        programs: [],
-        environments: [],
-        aliases: { }
+  appendToBuffer: function(string) {
+    if (this.environment.isSimple) {
+      return "return " + string + ";";
+    } else {
+      return {
+        appendToBuffer: true,
+        content: string,
+        toString: function() { return "buffer += " + string + ";"; }
       };
+    }
+  },
 
-      this.preamble();
+  initializeBuffer: function() {
+    return this.quotedString("");
+  },
 
-      this.stackSlot = 0;
-      this.stackVars = [];
-      this.registers = { list: [] };
-      this.compileStack = [];
-      this.inlineStack = [];
+  namespace: "Handlebars",
+  // END PUBLIC API
 
-      this.compileChildren(environment, options);
+  compile: function(environment, options, context, asObject) {
+    this.environment = environment;
+    this.options = options || {};
 
-      var opcodes = environment.opcodes, opcode;
+    Handlebars.log(Handlebars.logger.DEBUG, this.environment.disassemble() + "\n\n");
 
-      this.i = 0;
+    this.name = this.environment.name;
+    this.isChild = !!context;
+    this.context = context || {
+      programs: [],
+      environments: [],
+      aliases: { }
+    };
 
-      for(l=opcodes.length; this.i<l; this.i++) {
-        opcode = opcodes[this.i];
+    this.preamble();
 
-        if(opcode.opcode === 'DECLARE') {
-          this[opcode.name] = opcode.value;
-        } else {
-          this[opcode.opcode].apply(this, opcode.args);
-        }
-      }
+    this.stackSlot = 0;
+    this.stackVars = [];
+    this.registers = { list: [] };
+    this.compileStack = [];
+    this.inlineStack = [];
 
-      return this.createFunctionContext(asObject);
-    },
+    this.compileChildren(environment, options);
 
-    nextOpcode: function() {
-      var opcodes = this.environment.opcodes;
-      return opcodes[this.i + 1];
-    },
+    var opcodes = environment.opcodes, opcode;
 
-    eat: function() {
-      this.i = this.i + 1;
-    },
+    this.i = 0;
 
-    preamble: function() {
-      var out = [];
+    for(l=opcodes.length; this.i<l; this.i++) {
+      opcode = opcodes[this.i];
 
-      if (!this.isChild) {
-        var namespace = this.namespace;
-        var copies = "helpers = helpers || " + namespace + ".helpers;";
-        if (this.environment.usePartial) { copies = copies + " partials = partials || " + namespace + ".partials;"; }
-        if (this.options.data) { copies = copies + " data = data || {};"; }
-        out.push(copies);
+      if(opcode.opcode === 'DECLARE') {
+        this[opcode.name] = opcode.value;
       } else {
-        out.push('');
+        this[opcode.opcode].apply(this, opcode.args);
       }
+    }
 
-      if (!this.environment.isSimple) {
-        out.push(", buffer = " + this.initializeBuffer());
-      } else {
-        out.push("");
-      }
+    return this.createFunctionContext(asObject);
+  },
+
+  nextOpcode: function() {
+    var opcodes = this.environment.opcodes;
+    return opcodes[this.i + 1];
+  },
+
+  eat: function() {
+    this.i = this.i + 1;
+  },
+
+  preamble: function() {
+    var out = [];
+
+    if (!this.isChild) {
+      var namespace = this.namespace;
+      var copies = "helpers = helpers || " + namespace + ".helpers;";
+      if (this.environment.usePartial) { copies = copies + " partials = partials || " + namespace + ".partials;"; }
+      if (this.options.data) { copies = copies + " data = data || {};"; }
+      out.push(copies);
+    } else {
+      out.push('');
+    }
 
-      // track the last context pushed into place to allow skipping the
-      // getContext opcode when it would be a noop
-      this.lastContext = 0;
-      this.source = out;
-    },
+    if (!this.environment.isSimple) {
+      out.push(", buffer = " + this.initializeBuffer());
+    } else {
+      out.push("");
+    }
 
-    createFunctionContext: function(asObject) {
-      var locals = this.stackVars.concat(this.registers.list);
+    // track the last context pushed into place to allow skipping the
+    // getContext opcode when it would be a noop
+    this.lastContext = 0;
+    this.source = out;
+  },
 
-      if(locals.length > 0) {
-        this.source[1] = this.source[1] + ", " + locals.join(", ");
-      }
+  createFunctionContext: function(asObject) {
+    var locals = this.stackVars.concat(this.registers.list);
 
-      // Generate minimizer alias mappings
-      if (!this.isChild) {
-        for (var alias in this.context.aliases) {
-          this.source[1] = this.source[1] + ', ' + alias + '=' + this.context.aliases[alias];
-        }
-      }
+    if(locals.length > 0) {
+      this.source[1] = this.source[1] + ", " + locals.join(", ");
+    }
 
-      if (this.source[1]) {
-        this.source[1] = "var " + this.source[1].substring(2) + ";";
+    // Generate minimizer alias mappings
+    if (!this.isChild) {
+      for (var alias in this.context.aliases) {
+        this.source[1] = this.source[1] + ', ' + alias + '=' + this.context.aliases[alias];
       }
+    }
 
-      // Merge children
-      if (!this.isChild) {
-        this.source[1] += '\n' + this.context.programs.join('\n') + '\n';
-      }
+    if (this.source[1]) {
+      this.source[1] = "var " + this.source[1].substring(2) + ";";
+    }
 
-      if (!this.environment.isSimple) {
-        this.source.push("return buffer;");
-      }
+    // Merge children
+    if (!this.isChild) {
+      this.source[1] += '\n' + this.context.programs.join('\n') + '\n';
+    }
 
-      var params = this.isChild ? ["depth0", "data"] : ["Handlebars", "depth0", "helpers", "partials", "data"];
+    if (!this.environment.isSimple) {
+      this.source.push("return buffer;");
+    }
 
-      for(var i=0, l=this.environment.depths.list.length; i<l; i++) {
-        params.push("depth" + this.environment.depths.list[i]);
-      }
+    var params = this.isChild ? ["depth0", "data"] : ["Handlebars", "depth0", "helpers", "partials", "data"];
 
-      // Perform a second pass over the output to merge content when possible
-      var source = this.mergeSource();
+    for(var i=0, l=this.environment.depths.list.length; i<l; i++) {
+      params.push("depth" + this.environment.depths.list[i]);
+    }
 
-      if (!this.isChild) {
-        var revision = Handlebars.COMPILER_REVISION,
-            versions = Handlebars.REVISION_CHANGES[revision];
-        source = "this.compilerInfo = ["+revision+",'"+versions+"'];\n"+source;
-      }
+    // Perform a second pass over the output to merge content when possible
+    var source = this.mergeSource();
 
-      if (asObject) {
-        params.push(source);
+    if (!this.isChild) {
+      var revision = Handlebars.COMPILER_REVISION,
+          versions = Handlebars.REVISION_CHANGES[revision];
+      source = "this.compilerInfo = ["+revision+",'"+versions+"'];\n"+source;
+    }
 
-        return Function.apply(this, params);
-      } else {
-        var functionSource = 'function ' + (this.name || '') + '(' + params.join(',') + ') {\n  ' + source + '}';
-        Handlebars.log(Handlebars.logger.DEBUG, functionSource + "\n\n");
-        return functionSource;
-      }
-    },
-    mergeSource: function() {
-      // WARN: We are not handling the case where buffer is still populated as the source should
-      // not have buffer append operations as their final action.
-      var source = '',
-          buffer;
-      for (var i = 0, len = this.source.length; i < len; i++) {
-        var line = this.source[i];
-        if (line.appendToBuffer) {
-          if (buffer) {
-            buffer = buffer + '\n    + ' + line.content;
-          } else {
-            buffer = line.content;
-          }
+    if (asObject) {
+      params.push(source);
+
+      return Function.apply(this, params);
+    } else {
+      var functionSource = 'function ' + (this.name || '') + '(' + params.join(',') + ') {\n  ' + source + '}';
+      Handlebars.log(Handlebars.logger.DEBUG, functionSource + "\n\n");
+      return functionSource;
+    }
+  },
+  mergeSource: function() {
+    // WARN: We are not handling the case where buffer is still populated as the source should
+    // not have buffer append operations as their final action.
+    var source = '',
+        buffer;
+    for (var i = 0, len = this.source.length; i < len; i++) {
+      var line = this.source[i];
+      if (line.appendToBuffer) {
+        if (buffer) {
+          buffer = buffer + '\n    + ' + line.content;
         } else {
-          if (buffer) {
-            source += 'buffer += ' + buffer + ';\n  ';
-            buffer = undefined;
-          }
-          source += line + '\n  ';
+          buffer = line.content;
         }
-      }
-      return source;
-    },
-
-    // [blockValue]
-    //
-    // On stack, before: hash, inverse, program, value
-    // On stack, after: return value of blockHelperMissing
-    //
-    // The purpose of this opcode is to take a block of the form
-    // `{{#foo}}...{{/foo}}`, resolve the value of `foo`, and
-    // replace it on the stack with the result of properly
-    // invoking blockHelperMissing.
-    blockValue: function() {
-      this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing';
-
-      var params = ["depth0"];
-      this.setupParams(0, params);
-
-      this.replaceStack(function(current) {
-        params.splice(1, 0, current);
-        return "blockHelperMissing.call(" + params.join(", ") + ")";
-      });
-    },
-
-    // [ambiguousBlockValue]
-    //
-    // On stack, before: hash, inverse, program, value
-    // Compiler value, before: lastHelper=value of last found helper, if any
-    // On stack, after, if no lastHelper: same as [blockValue]
-    // On stack, after, if lastHelper: value
-    ambiguousBlockValue: function() {
-      this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing';
-
-      var params = ["depth0"];
-      this.setupParams(0, params);
-
-      var current = this.topStack();
-      params.splice(1, 0, current);
-
-      // Use the options value generated from the invocation
-      params[params.length-1] = 'options';
-
-      this.source.push("if (!" + this.lastHelper + ") { " + current + " = blockHelperMissing.call(" + params.join(", ") + "); }");
-    },
-
-    // [appendContent]
-    //
-    // On stack, before: ...
-    // On stack, after: ...
-    //
-    // Appends the string value of `content` to the current buffer
-    appendContent: function(content) {
-      this.source.push(this.appendToBuffer(this.quotedString(content)));
-    },
-
-    // [append]
-    //
-    // On stack, before: value, ...
-    // On stack, after: ...
-    //
-    // Coerces `value` to a String and appends it to the current buffer.
-    //
-    // If `value` is truthy, or 0, it is coerced into a string and appended
-    // Otherwise, the empty string is appended
-    append: function() {
-      // Force anything that is inlined onto the stack so we don't have duplication
-      // when we examine local
-      this.flushInline();
-      var local = this.popStack();
-      this.source.push("if(" + local + " || " + local + " === 0) { " + this.appendToBuffer(local) + " }");
-      if (this.environment.isSimple) {
-        this.source.push("else { " + this.appendToBuffer("''") + " }");
-      }
-    },
-
-    // [appendEscaped]
-    //
-    // On stack, before: value, ...
-    // On stack, after: ...
-    //
-    // Escape `value` and append it to the buffer
-    appendEscaped: function() {
-      this.context.aliases.escapeExpression = 'this.escapeExpression';
-
-      this.source.push(this.appendToBuffer("escapeExpression(" + this.popStack() + ")"));
-    },
-
-    // [getContext]
-    //
-    // On stack, before: ...
-    // On stack, after: ...
-    // Compiler value, after: lastContext=depth
-    //
-    // Set the value of the `lastContext` compiler value to the depth
-    getContext: function(depth) {
-      if(this.lastContext !== depth) {
-        this.lastContext = depth;
-      }
-    },
-
-    // [lookupOnContext]
-    //
-    // On stack, before: ...
-    // On stack, after: currentContext[name], ...
-    //
-    // Looks up the value of `name` on the current context and pushes
-    // it onto the stack.
-    lookupOnContext: function(name) {
-      this.push(this.nameLookup('depth' + this.lastContext, name, 'context'));
-    },
-
-    // [pushContext]
-    //
-    // On stack, before: ...
-    // On stack, after: currentContext, ...
-    //
-    // Pushes the value of the current context onto the stack.
-    pushContext: function() {
-      this.pushStackLiteral('depth' + this.lastContext);
-    },
-
-    // [resolvePossibleLambda]
-    //
-    // On stack, before: value, ...
-    // On stack, after: resolved value, ...
-    //
-    // If the `value` is a lambda, replace it on the stack by
-    // the return value of the lambda
-    resolvePossibleLambda: function() {
-      this.context.aliases.functionType = '"function"';
-
-      this.replaceStack(function(current) {
-        return "typeof " + current + " === functionType ? " + current + ".apply(depth0) : " + current;
-      });
-    },
-
-    // [lookup]
-    //
-    // On stack, before: value, ...
-    // On stack, after: value[name], ...
-    //
-    // Replace the value on the stack with the result of looking
-    // up `name` on `value`
-    lookup: function(name) {
-      this.replaceStack(function(current) {
-        return current + " == null || " + current + " === false ? " + current + " : " + this.nameLookup(current, name, 'context');
-      });
-    },
-
-    // [lookupData]
-    //
-    // On stack, before: ...
-    // On stack, after: data[id], ...
-    //
-    // Push the result of looking up `id` on the current data
-    lookupData: function(id) {
-      this.push(this.nameLookup('data', id, 'data'));
-    },
-
-    // [pushStringParam]
-    //
-    // On stack, before: ...
-    // On stack, after: string, currentContext, ...
-    //
-    // This opcode is designed for use in string mode, which
-    // provides the string value of a parameter along with its
-    // depth rather than resolving it immediately.
-    pushStringParam: function(string, type) {
-      this.pushStackLiteral('depth' + this.lastContext);
-
-      this.pushString(type);
-
-      if (typeof string === 'string') {
-        this.pushString(string);
       } else {
-        this.pushStackLiteral(string);
-      }
-    },
-
-    emptyHash: function() {
-      this.pushStackLiteral('{}');
-
-      if (this.options.stringParams) {
-        this.register('hashTypes', '{}');
+        if (buffer) {
+          source += 'buffer += ' + buffer + ';\n  ';
+          buffer = undefined;
+        }
+        source += line + '\n  ';
       }
-    },
-    pushHash: function() {
-      this.hash = {values: [], types: []};
-    },
-    popHash: function() {
-      var hash = this.hash;
-      this.hash = undefined;
+    }
+    return source;
+  },
+
+  // [blockValue]
+  //
+  // On stack, before: hash, inverse, program, value
+  // On stack, after: return value of blockHelperMissing
+  //
+  // The purpose of this opcode is to take a block of the form
+  // `{{#foo}}...{{/foo}}`, resolve the value of `foo`, and
+  // replace it on the stack with the result of properly
+  // invoking blockHelperMissing.
+  blockValue: function() {
+    this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing';
+
+    var params = ["depth0"];
+    this.setupParams(0, params);
+
+    this.replaceStack(function(current) {
+      params.splice(1, 0, current);
+      return "blockHelperMissing.call(" + params.join(", ") + ")";
+    });
+  },
+
+  // [ambiguousBlockValue]
+  //
+  // On stack, before: hash, inverse, program, value
+  // Compiler value, before: lastHelper=value of last found helper, if any
+  // On stack, after, if no lastHelper: same as [blockValue]
+  // On stack, after, if lastHelper: value
+  ambiguousBlockValue: function() {
+    this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing';
+
+    var params = ["depth0"];
+    this.setupParams(0, params);
+
+    var current = this.topStack();
+    params.splice(1, 0, current);
+
+    // Use the options value generated from the invocation
+    params[params.length-1] = 'options';
+
+    this.source.push("if (!" + this.lastHelper + ") { " + current + " = blockHelperMissing.call(" + params.join(", ") + "); }");
+  },
+
+  // [appendContent]
+  //
+  // On stack, before: ...
+  // On stack, after: ...
+  //
+  // Appends the string value of `content` to the current buffer
+  appendContent: function(content) {
+    this.source.push(this.appendToBuffer(this.quotedString(content)));
+  },
+
+  // [append]
+  //
+  // On stack, before: value, ...
+  // On stack, after: ...
+  //
+  // Coerces `value` to a String and appends it to the current buffer.
+  //
+  // If `value` is truthy, or 0, it is coerced into a string and appended
+  // Otherwise, the empty string is appended
+  append: function() {
+    // Force anything that is inlined onto the stack so we don't have duplication
+    // when we examine local
+    this.flushInline();
+    var local = this.popStack();
+    this.source.push("if(" + local + " || " + local + " === 0) { " + this.appendToBuffer(local) + " }");
+    if (this.environment.isSimple) {
+      this.source.push("else { " + this.appendToBuffer("''") + " }");
+    }
+  },
+
+  // [appendEscaped]
+  //
+  // On stack, before: value, ...
+  // On stack, after: ...
+  //
+  // Escape `value` and append it to the buffer
+  appendEscaped: function() {
+    this.context.aliases.escapeExpression = 'this.escapeExpression';
+
+    this.source.push(this.appendToBuffer("escapeExpression(" + this.popStack() + ")"));
+  },
+
+  // [getContext]
+  //
+  // On stack, before: ...
+  // On stack, after: ...
+  // Compiler value, after: lastContext=depth
+  //
+  // Set the value of the `lastContext` compiler value to the depth
+  getContext: function(depth) {
+    if(this.lastContext !== depth) {
+      this.lastContext = depth;
+    }
+  },
+
+  // [lookupOnContext]
+  //
+  // On stack, before: ...
+  // On stack, after: currentContext[name], ...
+  //
+  // Looks up the value of `name` on the current context and pushes
+  // it onto the stack.
+  lookupOnContext: function(name) {
+    this.push(this.nameLookup('depth' + this.lastContext, name, 'context'));
+  },
+
+  // [pushContext]
+  //
+  // On stack, before: ...
+  // On stack, after: currentContext, ...
+  //
+  // Pushes the value of the current context onto the stack.
+  pushContext: function() {
+    this.pushStackLiteral('depth' + this.lastContext);
+  },
+
+  // [resolvePossibleLambda]
+  //
+  // On stack, before: value, ...
+  // On stack, after: resolved value, ...
+  //
+  // If the `value` is a lambda, replace it on the stack by
+  // the return value of the lambda
+  resolvePossibleLambda: function() {
+    this.context.aliases.functionType = '"function"';
+
+    this.replaceStack(function(current) {
+      return "typeof " + current + " === functionType ? " + current + ".apply(depth0) : " + current;
+    });
+  },
+
+  // [lookup]
+  //
+  // On stack, before: value, ...
+  // On stack, after: value[name], ...
+  //
+  // Replace the value on the stack with the result of looking
+  // up `name` on `value`
+  lookup: function(name) {
+    this.replaceStack(function(current) {
+      return current + " == null || " + current + " === false ? " + current + " : " + this.nameLookup(current, name, 'context');
+    });
+  },
+
+  // [lookupData]
+  //
+  // On stack, before: ...
+  // On stack, after: data[id], ...
+  //
+  // Push the result of looking up `id` on the current data
+  lookupData: function(id) {
+    this.push(this.nameLookup('data', id, 'data'));
+  },
+
+  // [pushStringParam]
+  //
+  // On stack, before: ...
+  // On stack, after: string, currentContext, ...
+  //
+  // This opcode is designed for use in string mode, which
+  // provides the string value of a parameter along with its
+  // depth rather than resolving it immediately.
+  pushStringParam: function(string, type) {
+    this.pushStackLiteral('depth' + this.lastContext);
+
+    this.pushString(type);
+
+    if (typeof string === 'string') {
+      this.pushString(string);
+    } else {
+      this.pushStackLiteral(string);
+    }
+  },
 
-      if (this.options.stringParams) {
-        this.register('hashTypes', '{' + hash.types.join(',') + '}');
-      }
-      this.push('{\n    ' + hash.values.join(',\n    ') + '\n  }');
-    },
-
-    // [pushString]
-    //
-    // On stack, before: ...
-    // On stack, after: quotedString(string), ...
-    //
-    // Push a quoted version of `string` onto the stack
-    pushString: function(string) {
-      this.pushStackLiteral(this.quotedString(string));
-    },
-
-    // [push]
-    //
-    // On stack, before: ...
-    // On stack, after: expr, ...
-    //
-    // Push an expression onto the stack
-    push: function(expr) {
-      this.inlineStack.push(expr);
-      return expr;
-    },
-
-    // [pushLiteral]
-    //
-    // On stack, before: ...
-    // On stack, after: value, ...
-    //
-    // Pushes a value onto the stack. This operation prevents
-    // the compiler from creating a temporary variable to hold
-    // it.
-    pushLiteral: function(value) {
-      this.pushStackLiteral(value);
-    },
-
-    // [pushProgram]
-    //
-    // On stack, before: ...
-    // On stack, after: program(guid), ...
-    //
-    // Push a program expression onto the stack. This takes
-    // a compile-time guid and converts it into a runtime-accessible
-    // expression.
-    pushProgram: function(guid) {
-      if (guid != null) {
-        this.pushStackLiteral(this.programExpression(guid));
-      } else {
-        this.pushStackLiteral(null);
-      }
-    },
-
-    // [invokeHelper]
-    //
-    // On stack, before: hash, inverse, program, params..., ...
-    // On stack, after: result of helper invocation
-    //
-    // Pops off the helper's parameters, invokes the helper,
-    // and pushes the helper's return value onto the stack.
-    //
-    // If the helper is not found, `helperMissing` is called.
-    invokeHelper: function(paramSize, name) {
-      this.context.aliases.helperMissing = 'helpers.helperMissing';
-
-      var helper = this.lastHelper = this.setupHelper(paramSize, name, true);
-
-      this.push(helper.name);
-      this.replaceStack(function(name) {
-        return name + ' ? ' + name + '.call(' +
-            helper.callParams + ") " + ": helperMissing.call(" +
-            helper.helperMissingParams + ")";
-      });
-    },
-
-    // [invokeKnownHelper]
-    //
-    // On stack, before: hash, inverse, program, params..., ...
-    // On stack, after: result of helper invocation
-    //
-    // This operation is used when the helper is known to exist,
-    // so a `helperMissing` fallback is not required.
-    invokeKnownHelper: function(paramSize, name) {
-      var helper = this.setupHelper(paramSize, name);
-      this.push(helper.name + ".call(" + helper.callParams + ")");
-    },
-
-    // [invokeAmbiguous]
-    //
-    // On stack, before: hash, inverse, program, params..., ...
-    // On stack, after: result of disambiguation
-    //
-    // This operation is used when an expression like `{{foo}}`
-    // is provided, but we don't know at compile-time whether it
-    // is a helper or a path.
-    //
-    // This operation emits more code than the other options,
-    // and can be avoided by passing the `knownHelpers` and
-    // `knownHelpersOnly` flags at compile-time.
-    invokeAmbiguous: function(name, helperCall) {
-      this.context.aliases.functionType = '"function"';
-
-      this.pushStackLiteral('{}');    // Hash value
-      var helper = this.setupHelper(0, name, helperCall);
-
-      var helperName = this.lastHelper = this.nameLookup('helpers', name, 'helper');
-
-      var nonHelper = this.nameLookup('depth' + this.lastContext, name, 'context');
-      var nextStack = this.nextStack();
-
-      this.source.push('if (' + nextStack + ' = ' + helperName + ') { ' + nextStack + ' = ' + nextStack + '.call(' + helper.callParams + '); }');
-      this.source.push('else { ' + nextStack + ' = ' + nonHelper + '; ' + nextStack + ' = typeof ' + nextStack + ' === functionType ? ' + nextStack + '.apply(depth0) : ' + nextStack + '; }');
-    },
-
-    // [invokePartial]
-    //
-    // On stack, before: context, ...
-    // On stack after: result of partial invocation
-    //
-    // This operation pops off a context, invokes a partial with that context,
-    // and pushes the result of the invocation back.
-    invokePartial: function(name) {
-      var params = [this.nameLookup('partials', name, 'partial'), "'" + name + "'", this.popStack(), "helpers", "partials"];
-
-      if (this.options.data) {
-        params.push("data");
-      }
+  emptyHash: function() {
+    this.pushStackLiteral('{}');
 
-      this.context.aliases.self = "this";
-      this.push("self.invokePartial(" + params.join(", ") + ")");
-    },
-
-    // [assignToHash]
-    //
-    // On stack, before: value, hash, ...
-    // On stack, after: hash, ...
-    //
-    // Pops a value and hash off the stack, assigns `hash[key] = value`
-    // and pushes the hash back onto the stack.
-    assignToHash: function(key) {
-      var value = this.popStack(),
-          type;
+    if (this.options.stringParams) {
+      this.register('hashTypes', '{}');
+    }
+  },
+  pushHash: function() {
+    this.hash = {values: [], types: []};
+  },
+  popHash: function() {
+    var hash = this.hash;
+    this.hash = undefined;
+
+    if (this.options.stringParams) {
+      this.register('hashTypes', '{' + hash.types.join(',') + '}');
+    }
+    this.push('{\n    ' + hash.values.join(',\n    ') + '\n  }');
+  },
+
+  // [pushString]
+  //
+  // On stack, before: ...
+  // On stack, after: quotedString(string), ...
+  //
+  // Push a quoted version of `string` onto the stack
+  pushString: function(string) {
+    this.pushStackLiteral(this.quotedString(string));
+  },
+
+  // [push]
+  //
+  // On stack, before: ...
+  // On stack, after: expr, ...
+  //
+  // Push an expression onto the stack
+  push: function(expr) {
+    this.inlineStack.push(expr);
+    return expr;
+  },
+
+  // [pushLiteral]
+  //
+  // On stack, before: ...
+  // On stack, after: value, ...
+  //
+  // Pushes a value onto the stack. This operation prevents
+  // the compiler from creating a temporary variable to hold
+  // it.
+  pushLiteral: function(value) {
+    this.pushStackLiteral(value);
+  },
+
+  // [pushProgram]
+  //
+  // On stack, before: ...
+  // On stack, after: program(guid), ...
+  //
+  // Push a program expression onto the stack. This takes
+  // a compile-time guid and converts it into a runtime-accessible
+  // expression.
+  pushProgram: function(guid) {
+    if (guid != null) {
+      this.pushStackLiteral(this.programExpression(guid));
+    } else {
+      this.pushStackLiteral(null);
+    }
+  },
+
+  // [invokeHelper]
+  //
+  // On stack, before: hash, inverse, program, params..., ...
+  // On stack, after: result of helper invocation
+  //
+  // Pops off the helper's parameters, invokes the helper,
+  // and pushes the helper's return value onto the stack.
+  //
+  // If the helper is not found, `helperMissing` is called.
+  invokeHelper: function(paramSize, name) {
+    this.context.aliases.helperMissing = 'helpers.helperMissing';
+
+    var helper = this.lastHelper = this.setupHelper(paramSize, name, true);
+
+    this.push(helper.name);
+    this.replaceStack(function(name) {
+      return name + ' ? ' + name + '.call(' +
+          helper.callParams + ") " + ": helperMissing.call(" +
+          helper.helperMissingParams + ")";
+    });
+  },
+
+  // [invokeKnownHelper]
+  //
+  // On stack, before: hash, inverse, program, params..., ...
+  // On stack, after: result of helper invocation
+  //
+  // This operation is used when the helper is known to exist,
+  // so a `helperMissing` fallback is not required.
+  invokeKnownHelper: function(paramSize, name) {
+    var helper = this.setupHelper(paramSize, name);
+    this.push(helper.name + ".call(" + helper.callParams + ")");
+  },
+
+  // [invokeAmbiguous]
+  //
+  // On stack, before: hash, inverse, program, params..., ...
+  // On stack, after: result of disambiguation
+  //
+  // This operation is used when an expression like `{{foo}}`
+  // is provided, but we don't know at compile-time whether it
+  // is a helper or a path.
+  //
+  // This operation emits more code than the other options,
+  // and can be avoided by passing the `knownHelpers` and
+  // `knownHelpersOnly` flags at compile-time.
+  invokeAmbiguous: function(name, helperCall) {
+    this.context.aliases.functionType = '"function"';
+
+    this.pushStackLiteral('{}');    // Hash value
+    var helper = this.setupHelper(0, name, helperCall);
+
+    var helperName = this.lastHelper = this.nameLookup('helpers', name, 'helper');
+
+    var nonHelper = this.nameLookup('depth' + this.lastContext, name, 'context');
+    var nextStack = this.nextStack();
+
+    this.source.push('if (' + nextStack + ' = ' + helperName + ') { ' + nextStack + ' = ' + nextStack + '.call(' + helper.callParams + '); }');
+    this.source.push('else { ' + nextStack + ' = ' + nonHelper + '; ' + nextStack + ' = typeof ' + nextStack + ' === functionType ? ' + nextStack + '.apply(depth0) : ' + nextStack + '; }');
+  },
+
+  // [invokePartial]
+  //
+  // On stack, before: context, ...
+  // On stack after: result of partial invocation
+  //
+  // This operation pops off a context, invokes a partial with that context,
+  // and pushes the result of the invocation back.
+  invokePartial: function(name) {
+    var params = [this.nameLookup('partials', name, 'partial'), "'" + name + "'", this.popStack(), "helpers", "partials"];
+
+    if (this.options.data) {
+      params.push("data");
+    }
 
-      if (this.options.stringParams) {
-        type = this.popStack();
-        this.popStack();
-      }
+    this.context.aliases.self = "this";
+    this.push("self.invokePartial(" + params.join(", ") + ")");
+  },
+
+  // [assignToHash]
+  //
+  // On stack, before: value, hash, ...
+  // On stack, after: hash, ...
+  //
+  // Pops a value and hash off the stack, assigns `hash[key] = value`
+  // and pushes the hash back onto the stack.
+  assignToHash: function(key) {
+    var value = this.popStack(),
+        type;
+
+    if (this.options.stringParams) {
+      type = this.popStack();
+      this.popStack();
+    }
 
-      var hash = this.hash;
-      if (type) {
-        hash.types.push("'" + key + "': " + type);
-      }
-      hash.values.push("'" + key + "': (" + value + ")");
-    },
+    var hash = this.hash;
+    if (type) {
+      hash.types.push("'" + key + "': " + type);
+    }
+    hash.values.push("'" + key + "': (" + value + ")");
+  },
 
-    // HELPERS
+  // HELPERS
 
-    compiler: JavaScriptCompiler,
+  compiler: JavaScriptCompiler,
 
-    compileChildren: function(environment, options) {
-      var children = environment.children, child, compiler;
+  compileChildren: function(environment, options) {
+    var children = environment.children, child, compiler;
 
-      for(var i=0, l=children.length; i<l; i++) {
-        child = children[i];
-        compiler = new this.compiler();
+    for(var i=0, l=children.length; i<l; i++) {
+      child = children[i];
+      compiler = new this.compiler();
 
-        var index = this.matchExistingProgram(child);
+      var index = this.matchExistingProgram(child);
 
-        if (index == null) {
-          this.context.programs.push('');     // Placeholder to prevent name conflicts for nested children
-          index = this.context.programs.length;
-          child.index = index;
-          child.name = 'program' + index;
-          this.context.programs[index] = compiler.compile(child, options, this.context);
-          this.context.environments[index] = child;
-        } else {
-          child.index = index;
-          child.name = 'program' + index;
-        }
+      if (index == null) {
+        this.context.programs.push('');     // Placeholder to prevent name conflicts for nested children
+        index = this.context.programs.length;
+        child.index = index;
+        child.name = 'program' + index;
+        this.context.programs[index] = compiler.compile(child, options, this.context);
+        this.context.environments[index] = child;
+      } else {
+        child.index = index;
+        child.name = 'program' + index;
       }
-    },
-    matchExistingProgram: function(child) {
-      for (var i = 0, len = this.context.environments.length; i < len; i++) {
-        var environment = this.context.environments[i];
-        if (environment && environment.equals(child)) {
-          return i;
-        }
+    }
+  },
+  matchExistingProgram: function(child) {
+    for (var i = 0, len = this.context.environments.length; i < len; i++) {
+      var environment = this.context.environments[i];
+      if (environment && environment.equals(child)) {
+        return i;
       }
-    },
-
-    programExpression: function(guid) {
-      this.context.aliases.self = "this";
+    }
+  },
 
-      if(guid == null) {
-        return "self.noop";
-      }
+  programExpression: function(guid) {
+    this.context.aliases.self = "this";
 
-      var child = this.environment.children[guid],
-          depths = child.depths.list, depth;
+    if(guid == null) {
+      return "self.noop";
+    }
 
-      var programParams = [child.index, child.name, "data"];
+    var child = this.environment.children[guid],
+        depths = child.depths.list, depth;
 
-      for(var i=0, l = depths.length; i<l; i++) {
-        depth = depths[i];
+    var programParams = [child.index, child.name, "data"];
 
-        if(depth === 1) { programParams.push("depth0"); }
-        else { programParams.push("depth" + (depth - 1)); }
-      }
+    for(var i=0, l = depths.length; i<l; i++) {
+      depth = depths[i];
 
-      if(depths.length === 0) {
-        return "self.program(" + programParams.join(", ") + ")";
-      } else {
-        programParams.shift();
-        return "self.programWithDepth(" + programParams.join(", ") + ")";
-      }
-    },
+      if(depth === 1) { programParams.push("depth0"); }
+      else { programParams.push("depth" + (depth - 1)); }
+    }
 
-    register: function(name, val) {
-      this.useRegister(name);
-      this.source.push(name + " = " + val + ";");
-    },
+    if(depths.length === 0) {
+      return "self.program(" + programParams.join(", ") + ")";
+    } else {
+      programParams.shift();
+      return "self.programWithDepth(" + programParams.join(", ") + ")";
+    }
+  },
 
-    useRegister: function(name) {
-      if(!this.registers[name]) {
-        this.registers[name] = true;
-        this.registers.list.push(name);
-      }
-    },
+  register: function(name, val) {
+    this.useRegister(name);
+    this.source.push(name + " = " + val + ";");
+  },
 
-    pushStackLiteral: function(item) {
-      return this.push(new Literal(item));
-    },
+  useRegister: function(name) {
+    if(!this.registers[name]) {
+      this.registers[name] = true;
+      this.registers.list.push(name);
+    }
+  },
 
-    pushStack: function(item) {
-      this.flushInline();
+  pushStackLiteral: function(item) {
+    return this.push(new Literal(item));
+  },
 
-      var stack = this.incrStack();
-      if (item) {
-        this.source.push(stack + " = " + item + ";");
-      }
-      this.compileStack.push(stack);
-      return stack;
-    },
-
-    replaceStack: function(callback) {
-      var prefix = '',
-          inline = this.isInline(),
-          stack;
-
-      // If we are currently inline then we want to merge the inline statement into the
-      // replacement statement via ','
-      if (inline) {
-        var top = this.popStack(true);
-
-        if (top instanceof Literal) {
-          // Literals do not need to be inlined
-          stack = top.value;
-        } else {
-          // Get or create the current stack name for use by the inline
-          var name = this.stackSlot ? this.topStackName() : this.incrStack();
+  pushStack: function(item) {
+    this.flushInline();
 
-          prefix = '(' + this.push(name) + ' = ' + top + '),';
-          stack = this.topStack();
-        }
+    var stack = this.incrStack();
+    if (item) {
+      this.source.push(stack + " = " + item + ";");
+    }
+    this.compileStack.push(stack);
+    return stack;
+  },
+
+  replaceStack: function(callback) {
+    var prefix = '',
+        inline = this.isInline(),
+        stack;
+
+    // If we are currently inline then we want to merge the inline statement into the
+    // replacement statement via ','
+    if (inline) {
+      var top = this.popStack(true);
+
+      if (top instanceof Literal) {
+        // Literals do not need to be inlined
+        stack = top.value;
       } else {
+        // Get or create the current stack name for use by the inline
+        var name = this.stackSlot ? this.topStackName() : this.incrStack();
+
+        prefix = '(' + this.push(name) + ' = ' + top + '),';
         stack = this.topStack();
       }
+    } else {
+      stack = this.topStack();
+    }
 
-      var item = callback.call(this, stack);
+    var item = callback.call(this, stack);
 
-      if (inline) {
-        if (this.inlineStack.length || this.compileStack.length) {
-          this.popStack();
-        }
-        this.push('(' + prefix + item + ')');
-      } else {
-        // Prevent modification of the context depth variable. Through replaceStack
-        if (!/^stack/.test(stack)) {
-          stack = this.nextStack();
-        }
-
-        this.source.push(stack + " = (" + prefix + item + ");");
+    if (inline) {
+      if (this.inlineStack.length || this.compileStack.length) {
+        this.popStack();
       }
-      return stack;
-    },
-
-    nextStack: function() {
-      return this.pushStack();
-    },
-
-    incrStack: function() {
-      this.stackSlot++;
-      if(this.stackSlot > this.stackVars.length) { this.stackVars.push("stack" + this.stackSlot); }
-      return this.topStackName();
-    },
-    topStackName: function() {
-      return "stack" + this.stackSlot;
-    },
-    flushInline: function() {
-      var inlineStack = this.inlineStack;
-      if (inlineStack.length) {
-        this.inlineStack = [];
-        for (var i = 0, len = inlineStack.length; i < len; i++) {
-          var entry = inlineStack[i];
-          if (entry instanceof Literal) {
-            this.compileStack.push(entry);
-          } else {
-            this.pushStack(entry);
-          }
-        }
+      this.push('(' + prefix + item + ')');
+    } else {
+      // Prevent modification of the context depth variable. Through replaceStack
+      if (!/^stack/.test(stack)) {
+        stack = this.nextStack();
       }
-    },
-    isInline: function() {
-      return this.inlineStack.length;
-    },
-
-    popStack: function(wrapped) {
-      var inline = this.isInline(),
-          item = (inline ? this.inlineStack : this.compileStack).pop();
 
-      if (!wrapped && (item instanceof Literal)) {
-        return item.value;
-      } else {
-        if (!inline) {
-          this.stackSlot--;
+      this.source.push(stack + " = (" + prefix + item + ");");
+    }
+    return stack;
+  },
+
+  nextStack: function() {
+    return this.pushStack();
+  },
+
+  incrStack: function() {
+    this.stackSlot++;
+    if(this.stackSlot > this.stackVars.length) { this.stackVars.push("stack" + this.stackSlot); }
+    return this.topStackName();
+  },
+  topStackName: function() {
+    return "stack" + this.stackSlot;
+  },
+  flushInline: function() {
+    var inlineStack = this.inlineStack;
+    if (inlineStack.length) {
+      this.inlineStack = [];
+      for (var i = 0, len = inlineStack.length; i < len; i++) {
+        var entry = inlineStack[i];
+        if (entry instanceof Literal) {
+          this.compileStack.push(entry);
+        } else {
+          this.pushStack(entry);
         }
-        return item;
       }
-    },
-
-    topStack: function(wrapped) {
-      var stack = (this.isInline() ? this.inlineStack : this.compileStack),
-          item = stack[stack.length - 1];
-
-      if (!wrapped && (item instanceof Literal)) {
-        return item.value;
-      } else {
-        return item;
+    }
+  },
+  isInline: function() {
+    return this.inlineStack.length;
+  },
+
+  popStack: function(wrapped) {
+    var inline = this.isInline(),
+        item = (inline ? this.inlineStack : this.compileStack).pop();
+
+    if (!wrapped && (item instanceof Literal)) {
+      return item.value;
+    } else {
+      if (!inline) {
+        this.stackSlot--;
       }
-    },
-
-    quotedString: function(str) {
-      return '"' + str
-        .replace(/\\/g, '\\\\')
-        .replace(/"/g, '\\"')
-        .replace(/\n/g, '\\n')
-        .replace(/\r/g, '\\r') + '"';
-    },
-
-    setupHelper: function(paramSize, name, missingParams) {
-      var params = [];
-      this.setupParams(paramSize, params, missingParams);
-      var foundHelper = this.nameLookup('helpers', name, 'helper');
-
-      return {
-        params: params,
-        name: foundHelper,
-        callParams: ["depth0"].concat(params).join(", "),
-        helperMissingParams: missingParams && ["depth0", this.quotedString(name)].concat(params).join(", ")
-      };
-    },
-
-    // the params and contexts arguments are passed in arrays
-    // to fill in
-    setupParams: function(paramSize, params, useRegister) {
-      var options = [], contexts = [], types = [], param, inverse, program;
-
-      options.push("hash:" + this.popStack());
-
-      inverse = this.popStack();
-      program = this.popStack();
-
-      // Avoid setting fn and inverse if neither are set. This allows
-      // helpers to do a check for `if (options.fn)`
-      if (program || inverse) {
-        if (!program) {
-          this.context.aliases.self = "this";
-          program = "self.noop";
-        }
+      return item;
+    }
+  },
 
-        if (!inverse) {
-         this.context.aliases.self = "this";
-          inverse = "self.noop";
-        }
+  topStack: function(wrapped) {
+    var stack = (this.isInline() ? this.inlineStack : this.compileStack),
+        item = stack[stack.length - 1];
 
-        options.push("inverse:" + inverse);
-        options.push("fn:" + program);
+    if (!wrapped && (item instanceof Literal)) {
+      return item.value;
+    } else {
+      return item;
+    }
+  },
+
+  quotedString: function(str) {
+    return '"' + str
+      .replace(/\\/g, '\\\\')
+      .replace(/"/g, '\\"')
+      .replace(/\n/g, '\\n')
+      .replace(/\r/g, '\\r') + '"';
+  },
+
+  setupHelper: function(paramSize, name, missingParams) {
+    var params = [];
+    this.setupParams(paramSize, params, missingParams);
+    var foundHelper = this.nameLookup('helpers', name, 'helper');
+
+    return {
+      params: params,
+      name: foundHelper,
+      callParams: ["depth0"].concat(params).join(", "),
+      helperMissingParams: missingParams && ["depth0", this.quotedString(name)].concat(params).join(", ")
+    };
+  },
+
+  // the params and contexts arguments are passed in arrays
+  // to fill in
+  setupParams: function(paramSize, params, useRegister) {
+    var options = [], contexts = [], types = [], param, inverse, program;
+
+    options.push("hash:" + this.popStack());
+
+    inverse = this.popStack();
+    program = this.popStack();
+
+    // Avoid setting fn and inverse if neither are set. This allows
+    // helpers to do a check for `if (options.fn)`
+    if (program || inverse) {
+      if (!program) {
+        this.context.aliases.self = "this";
+        program = "self.noop";
       }
 
-      for(var i=0; i<paramSize; i++) {
-        param = this.popStack();
-        params.push(param);
-
-        if(this.options.stringParams) {
-          types.push(this.popStack());
-          contexts.push(this.popStack());
-        }
+      if (!inverse) {
+       this.context.aliases.self = "this";
+        inverse = "self.noop";
       }
 
-      if (this.options.stringParams) {
-        options.push("contexts:[" + contexts.join(",") + "]");
-        options.push("types:[" + types.join(",") + "]");
-        options.push("hashTypes:hashTypes");
-      }
+      options.push("inverse:" + inverse);
+      options.push("fn:" + program);
+    }
 
-      if(this.options.data) {
-        options.push("data:data");
-      }
+    for(var i=0; i<paramSize; i++) {
+      param = this.popStack();
+      params.push(param);
 
-      options = "{" + options.join(",") + "}";
-      if (useRegister) {
-        this.register('options', options);
-        params.push('options');
-      } else {
-        params.push(options);
+      if(this.options.stringParams) {
+        types.push(this.popStack());
+        contexts.push(this.popStack());
       }
-      return params.join(", ");
     }
-  };
 
-  var reservedWords = (
-    "break else new var" +
-    " case finally return void" +
-    " catch for switch while" +
-    " continue function this with" +
-    " default if throw" +
-    " delete in try" +
-    " do instanceof typeof" +
-    " abstract enum int short" +
-    " boolean export interface static" +
-    " byte extends long super" +
-    " char final native synchronized" +
-    " class float package throws" +
-    " const goto private transient" +
-    " debugger implements protected volatile" +
-    " double import public let yield"
-  ).split(" ");
-
-  var compilerWords = JavaScriptCompiler.RESERVED_WORDS = {};
-
-  for(var i=0, l=reservedWords.length; i<l; i++) {
-    compilerWords[reservedWords[i]] = true;
-  }
+    if (this.options.stringParams) {
+      options.push("contexts:[" + contexts.join(",") + "]");
+      options.push("types:[" + types.join(",") + "]");
+      options.push("hashTypes:hashTypes");
+    }
 
-  JavaScriptCompiler.isValidJavaScriptVariableName = function(name) {
-    if(!JavaScriptCompiler.RESERVED_WORDS[name] && /^[a-zA-Z_$][0-9a-zA-Z_$]+$/.test(name)) {
-      return true;
+    if(this.options.data) {
+      options.push("data:data");
     }
-    return false;
-  };
 
-})(Handlebars.Compiler, Handlebars.JavaScriptCompiler);
+    options = "{" + options.join(",") + "}";
+    if (useRegister) {
+      this.register('options', options);
+      params.push('options');
+    } else {
+      params.push(options);
+    }
+    return params.join(", ");
+  }
+};
+
+var reservedWords = (
+  "break else new var" +
+  " case finally return void" +
+  " catch for switch while" +
+  " continue function this with" +
+  " default if throw" +
+  " delete in try" +
+  " do instanceof typeof" +
+  " abstract enum int short" +
+  " boolean export interface static" +
+  " byte extends long super" +
+  " char final native synchronized" +
+  " class float package throws" +
+  " const goto private transient" +
+  " debugger implements protected volatile" +
+  " double import public let yield"
+).split(" ");
+
+var compilerWords = JavaScriptCompiler.RESERVED_WORDS = {};
+
+for(var i=0, l=reservedWords.length; i<l; i++) {
+  compilerWords[reservedWords[i]] = true;
+}
+
+JavaScriptCompiler.isValidJavaScriptVariableName = function(name) {
+  if(!JavaScriptCompiler.RESERVED_WORDS[name] && /^[a-zA-Z_$][0-9a-zA-Z_$]+$/.test(name)) {
+    return true;
+  }
+  return false;
+};
 
 Handlebars.precompile = function(input, options) {
   if (!input || (typeof input !== 'string' && input.constructor !== Handlebars.AST.ProgramNode)) {
@@ -1237,8 +1234,8 @@ Handlebars.precompile = function(input, options) {
     options.data = true;
   }
   var ast = Handlebars.parse(input);
-  var environment = new Handlebars.Compiler().compile(ast, options);
-  return new Handlebars.JavaScriptCompiler().compile(environment, options);
+  var environment = new Compiler().compile(ast, options);
+  return new JavaScriptCompiler().compile(environment, options);
 };
 
 Handlebars.compile = function(input, options) {
@@ -1253,8 +1250,8 @@ Handlebars.compile = function(input, options) {
   var compiled;
   function compile() {
     var ast = Handlebars.parse(input);
-    var environment = new Handlebars.Compiler().compile(ast, options);
-    var templateSpec = new Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true);
+    var environment = new Compiler().compile(ast, options);
+    var templateSpec = new JavaScriptCompiler().compile(environment, options, undefined, true);
     return Handlebars.template(templateSpec);
   }