diff --git a/lib/translate.js b/lib/translate.js
index da7a2035..733f6f8c 100644
--- a/lib/translate.js
+++ b/lib/translate.js
@@ -146,6 +146,48 @@ Cola.Constructions.SplatedConditional = function(name, uid, pos, after, length){
     });
 };
 
+/*
+    {{name}}[{{pos}}]
+
+    or
+
+    {{name}}[$_cola{{uid}}i + {{after}}]
+
+*/
+Cola.Constructions.ValueWithOffset = function(name, uid, cond, pos, after){
+    if(Cola.$_cola_is(name, String)) name = new Cola.AST_SymbolRef({ name : name });
+    return new Cola.AST_Sub({ 
+        expression : name, 
+        property   : cond 
+            ? new Cola.AST_Number({ value : pos }) 
+            : new Cola.AST_Binary({
+                operator : "+",
+                left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
+                right    : new Cola.AST_Number({ value : after })
+            })
+    });
+};
+
+/*
+    {{name}}.{{key}}
+
+    or
+
+    {{name}}["{{key}}"]
+
+*/
+Cola.Constructions.ValueWithKey = function(cond, name, key){
+    return cond
+        ? new Cola.AST_Dot({ 
+            expression : name, 
+            property   : key
+        })
+        : new Cola.AST_Sub({
+            expression : name,
+            property   : new Cola.AST_String({ value : key })
+        });
+};
+
 /*
     {{name}} = {{length}} <= arguments.length ? [].slice.call(arguments, {{pos}}, $_cola_i = arguments.length - {{after}}) : ($_cola_i = {{pos}}, [])
 
@@ -159,24 +201,31 @@ Cola.Constructions.SplatedVarDef = function(name, pos, after, length){
     });
 };
 
+/*
+    {{name}} = arguments[{{pos}}]
+
+    or
+
+    {{name}} = arguments[$_cola_i + {{aftersplated}}]
+
+*/
 Cola.Constructions.PosedVarDef = function(name, type, pos, aftersplated){
     if(Cola.$_cola_is(name, String)) name = { name : name };
     return new Cola.AST_VarDef({
         type  : type,
         name  : new Cola.AST_SymbolVar(name),
-        value : new Cola.AST_Sub({
-            expression : new Cola.AST_SymbolRef({ name : 'arguments' }),
-            property   : aftersplated == -1
-                ? new Cola.AST_Number({ value : pos })
-                : new Cola.AST_Binary({
-                    operator : '+',
-                    left     : new Cola.AST_SymbolRef({ name : '$_cola_i' }),
-                    right    : new Cola.AST_Number({ value : aftersplated })
-                })
-        })
+        value : Cola.Constructions.ValueWithOffset('arguments', '_', aftersplated == -1, pos, aftersplated)
     });
 };
 
+/*
+    {{name}} = arguments[{{pos}}] !== undefined ? arguments[{{pos}}] : {{defval}}
+
+    or
+
+    {{name}} = arguments[$_cola_i + {{aftersplated}}] !== undefined ? arguments[$_cola_i + {{aftersplated}}] : {{defval}}
+
+*/
 Cola.Constructions.PosedWithDefsVarDef = function(name, type, defval, pos, aftersplated){
     if(Cola.$_cola_is(name, String)) name = { name : name };
     return new Cola.AST_VarDef({
@@ -185,33 +234,19 @@ Cola.Constructions.PosedWithDefsVarDef = function(name, type, defval, pos, after
         value : new Cola.AST_Conditional({
             condition   : new Cola.AST_Binary({
                 operator : "!==",
-                left     : new Cola.AST_Sub({
-                    expression : new Cola.AST_SymbolRef({ name : 'arguments' }),
-                    property   : aftersplated == -1
-                        ? new Cola.AST_Number({ value : pos })
-                        : new Cola.AST_Binary({
-                            operator : '+',
-                            left     : new Cola.AST_SymbolRef({ name : '$_cola_i' }),
-                            right    : new Cola.AST_Number({ value : aftersplated })
-                        })
-                }),
+                left     : Cola.Constructions.ValueWithOffset('arguments', '_', aftersplated == -1, pos, aftersplated),
                 right    : new Cola.AST_SymbolRef({ name : 'undefined' })
             }),
-            consequent  : new Cola.AST_Sub({
-                expression : new Cola.AST_SymbolRef({ name : 'arguments' }),
-                property   : aftersplated == -1
-                    ? new Cola.AST_Number({ value : pos })
-                    : new Cola.AST_Binary({
-                        operator : '+',
-                        left     : new Cola.AST_SymbolRef({ name : '$_cola_i' }),
-                        right    : new Cola.AST_Number({ value : aftersplated })
-                    })
-            }),
+            consequent  : Cola.Constructions.ValueWithOffset('arguments', '_', aftersplated == -1, pos, aftersplated),
             alternative : defval
         })
     });
 };
 
+/*
+    {{name}} = arguments.{{key}} !== undefined ? arguments.{{key}} : {{defval}}
+
+*/
 Cola.Constructions.NamedVarDef = function(name, type, defval, key){
     if(Cola.$_cola_is(name, String)) name = { name : name };
     return new Cola.AST_VarDef({
@@ -779,8 +814,8 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                 }
                 else
 
-                if(val.defval instanceof Cola.AST_Noop) props.definitions.push(Cola.Constructions.PosedVarDef(val.name, val.type, pos, aftersplated)), aftersplated++;
-                else props.definitions.push(Cola.Constructions.PosedWithDefsVarDef(val.name, val.type, val.defval, pos, aftersplated)), aftersplated++;
+                if(val.defval instanceof Cola.AST_Noop) props.definitions.push(Cola.Constructions.PosedVarDef(val.name, val.type, pos, aftersplated++));
+                else props.definitions.push(Cola.Constructions.PosedWithDefsVarDef(val.name, val.type, val.defval, pos, aftersplated++));
             });
 
             named.forEach(function(val, i){
@@ -1094,7 +1129,7 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
         } else*/
 
         /*
-            {  String name, age : ages.age } = pro;
+            { String name, age : ages.age } = pro;
 
             to
 
@@ -1149,31 +1184,13 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                             }));
                         } else
                         if(el instanceof Cola.AST_VarDef){
-                            el.value = new Cola.AST_Sub({ 
-                                expression : symbol, 
-                                property   : !skiped 
-                                    ? new Cola.AST_Number({ value : j }) 
-                                    : new Cola.AST_Binary({
-                                        operator : "+",
-                                        left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                        right    : new Cola.AST_Number({ value : k++ })
-                                    })
-                            });
+                            el.value = Cola.Constructions.ValueWithOffset(symbol, uid, !skiped, j, k++);
                             defs.push(el);
                         } else 
                         if(el instanceof Cola.AST_SymbolRef || el instanceof Cola.AST_Sub || el instanceof Cola.AST_Dot) defs.push(new Cola.AST_Assign({
                             operator : node.operator,
                             left     : el,
-                            right    : new Cola.AST_Sub({ 
-                                expression : symbol, 
-                                property   : !skiped 
-                                    ? new Cola.AST_Number({ value : j }) 
-                                    : new Cola.AST_Binary({
-                                        operator : "+",
-                                        left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                        right    : new Cola.AST_Number({ value : k++ })
-                                    })
-                            })
+                            right    : Cola.Constructions.ValueWithOffset(symbol, uid, !skiped, j, k++)
                         })); else 
                         if(el instanceof Cola.AST_Noop){
                             skiped = true;
@@ -1193,16 +1210,7 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                         if(el instanceof Cola.AST_Hole || el instanceof Cola.AST_ArrayTemplate && el.elements.length == 0 || el instanceof Cola.AST_ObjectTemplate && el.properties.length == 0)
                             k++;
                         else
-                        _rec(el,  new Cola.AST_Sub({ 
-                            expression : symbol, 
-                            property   : !skiped 
-                                ? new Cola.AST_Number({ value : j }) 
-                                : new Cola.AST_Binary({
-                                    operator : "+",
-                                    left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                    right    : new Cola.AST_Number({ value : k++ })
-                                })
-                        }), uid + "_");
+                        _rec(el, Cola.Constructions.ValueWithOffset(symbol, uid, !skiped, j, k++), uid + "_");
                     }
                     : function(el, j){
                         if(el.type && (el.value instanceof Cola.AST_SymbolRef || el.value instanceof Cola.AST_Noop && el.start.type == "name")) defs.push(new Cola.AST_VarDef({
@@ -1210,38 +1218,14 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                             end   : node.end,
                             type  : el.type,
                             name  : el.value instanceof Cola.AST_Noop ? new Cola.AST_SymbolVar({ name : el.key }) : new Cola.AST_SymbolVar(el.value),
-                            value : el.start.type == "name"
-                                ? new Cola.AST_Dot({ 
-                                    expression : symbol, 
-                                    property   : el.key
-                                })
-                                : new Cola.AST_Sub({
-                                    expression : symbol,
-                                    property   : new Cola.AST_String({ value : el.key })
-                                })
+                            value : Cola.Constructions.ValueWithKey(el.start.type == "name" || el.start.type == "keyword", symbol, el.key)
                         })); else 
                         if(el.value instanceof Cola.AST_SymbolRef  || el.value instanceof Cola.AST_Sub || el.value instanceof Cola.AST_Dot || el.value instanceof Cola.AST_Noop && el.start.type == "name") defs.push(new Cola.AST_Assign({
                             operator : node.operator,
                             left     : el.value instanceof Cola.AST_Noop ? new Cola.AST_SymbolRef({ name : el.key }) : el.value,
-                            right    : el.start.type == "name"
-                                ? new Cola.AST_Dot({ 
-                                    expression : symbol, 
-                                    property   : el.key
-                                })
-                                : new Cola.AST_Sub({
-                                    expression : symbol,
-                                    property   : new Cola.AST_String({ value : el.key })
-                                })
+                            right    : Cola.Constructions.ValueWithKey(el.start.type == "name" || el.start.type == "keyword", symbol, el.key)
                         })); else 
-                        _rec(el.value,  el.start.type == "name"
-                            ? new Cola.AST_Dot({ 
-                                expression : symbol, 
-                                property   : el.key
-                            })
-                            : new Cola.AST_Sub({
-                                expression : symbol,
-                                property   : new Cola.AST_String({ value : el.key })
-                        }), uid + "_");
+                        _rec(el.value, Cola.Constructions.ValueWithKey(el.start.type == "name" || el.start.type == "keyword", symbol, el.key), uid + "_");
                     });
             })(node.left, Symbol, "_");
 
@@ -1317,64 +1301,13 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                             defs.push(new Cola.AST_Assign({
                                 operator : node.operator,
                                 left     : el,
-                                right    : new Cola.AST_Conditional({
-                                    condition   : new Cola.AST_Binary({
-                                        operator  : "<=",
-                                        left      : new Cola.AST_Number({ value : _.length }),
-                                        right     : new Cola.AST_Dot({
-                                            expression : symbol,
-                                            property   : "length"
-                                        })
-                                    }),
-                                    consequent  : new Cola.AST_Call({
-                                        expression  : new Cola.AST_Dot({ 
-                                            property   : "call",
-                                            expression : new Cola.AST_Dot({
-                                                property   : "slice",
-                                                expression : new Cola.AST_Array({ elements : [] })
-                                            })
-                                        }),
-                                        args        : [
-                                            symbol, 
-                                            new Cola.AST_Number({ value : j }),
-                                            new Cola.AST_Assign({
-                                                operator : '=',
-                                                left     : new Cola.AST_SymbolVar({ name : "$_cola" + uid + "i" }),
-                                                right    : new Cola.AST_Binary({
-                                                    operator : '-',
-                                                    left     : new Cola.AST_Dot({
-                                                        property   : "length",
-                                                        expression : symbol
-                                                    }),
-                                                    right    : new Cola.AST_Number({ value : _.length - j - 1 })
-                                                })
-                                            })
-                                        ]
-                                    }),
-                                    alternative : new Cola.AST_Seq({
-                                        car : new Cola.AST_Assign({
-                                            operator : '=',
-                                            left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                            right    : new Cola.AST_Number({ value : j })
-                                        }),
-                                        cdr : new Cola.AST_Array({ elements : [] })
-                                    })
-                                })
+                                right    : Cola.Constructions.SplatedConditional(symbol, uid, j, _.length - j - 1, _.length)
                             }));
                         } else
                         if(el instanceof Cola.AST_SymbolRef || el instanceof Cola.AST_Sub || el instanceof Cola.AST_Dot) defs.push(new Cola.AST_Assign({
                             operator : node.operator,
                             left     : el,
-                            right    : new Cola.AST_Sub({ 
-                                expression : symbol, 
-                                property   : !skiped 
-                                    ? new Cola.AST_Number({ value : j }) 
-                                    : new Cola.AST_Binary({
-                                        operator : "+",
-                                        left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                        right    : new Cola.AST_Number({ value : k++ })
-                                    })
-                            })
+                            right    : Cola.Constructions.ValueWithOffset(symbol, uid, !skiped, j, k++)
                         })); else 
                         if(el instanceof Cola.AST_Noop){
                             skiped = true;
@@ -1394,40 +1327,15 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                         if(el instanceof Cola.AST_Hole || el instanceof Cola.AST_ArrayTemplate && el.elements.length == 0 || el instanceof Cola.AST_ObjectTemplate && el.properties.length == 0)
                             k++;
                         else
-                        _rec(el,  new Cola.AST_Sub({ 
-                            expression : symbol, 
-                            property   : !skiped 
-                                ? new Cola.AST_Number({ value : j }) 
-                                : new Cola.AST_Binary({
-                                    operator : "+",
-                                    left     : new Cola.AST_SymbolRef({ name : "$_cola" + uid + "i" }),
-                                    right    : new Cola.AST_Number({ value : k++ })
-                                })
-                        }), uid + "_");
+                        _rec(el, Cola.Constructions.ValueWithOffset(symbol, uid, !skiped, j, k++), uid + "_");
                     }
                     : function(el, j){
                         if(el.value instanceof Cola.AST_SymbolRef  || el.value instanceof Cola.AST_Sub || el.value instanceof Cola.AST_Dot || el.value instanceof Cola.AST_Noop && el.start.type == "name") defs.push(new Cola.AST_Assign({
                             operator : node.operator,
                             left     : el.value instanceof Cola.AST_Noop ? new Cola.AST_SymbolRef({ name : el.key }) : el.value,
-                            right    : el.start.type == "name"
-                                ? new Cola.AST_Dot({ 
-                                    expression : symbol, 
-                                    property   : el.key
-                                })
-                                : new Cola.AST_Sub({
-                                    expression : symbol,
-                                    property   : new Cola.AST_String({ value : el.key })
-                                })
+                            right    : Cola.Constructions.ValueWithKey(el.start.type == "name" || el.start.type == "keyword", symbol, el.key)
                         })); else 
-                        _rec(el.value,  el.start.type == "name"
-                            ? new Cola.AST_Dot({ 
-                                expression : symbol, 
-                                property   : el.key
-                            })
-                            : new Cola.AST_Sub({
-                                expression : symbol,
-                                property   : new Cola.AST_String({ value : el.key })
-                        }), uid + "_");
+                        _rec(el.value, Cola.Constructions.ValueWithKey(el.start.type == "name" || el.start.type == "keyword", symbol, el.key), uid + "_");
                     });
             })(node.left, Symbol, "_");
 
@@ -1444,7 +1352,7 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                     argtype : "positional",
                     type    : "dynamic",
                     defval  : new Cola.AST_Noop(),
-                    name    : new Cola.AST_SymbolFunarg({ name : "arguments", start : new Cola.AST_Token(), end : new Cola.AST_Token() })
+                    name    : new Cola.AST_SymbolFunarg({ name : "arguments" })
                 })] 
             };
 
@@ -1479,9 +1387,7 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
                 if(i == defs.length - 1) _(false);
             });
 
-            props.body.push(new Cola.AST_Return({
-                value : new Cola.AST_SymbolRef({ name : "$_cola_expr" })
-            }));
+            props.body.push(new Cola.AST_Return({ value : new Cola.AST_SymbolRef({ name : "$_cola_expr" }) }));
 
             props = {
                 expression : new Cola.AST_Function(props),
@@ -1537,6 +1443,8 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
             }
         
             node = new Cola.AST_Call({
+                start      : node.start,
+                end        : node.end,
                 args       : [new Cola.AST_SymbolRef({ name : "this" }), new Cola.AST_SymbolRef({ name : "arguments" })],
                 expression : new Cola.AST_Dot(props)
             });
@@ -1576,6 +1484,8 @@ Cola.AST_Toplevel.prototype.toJavaScript = function(options){
             };
         
             node = new Cola.AST_Call({
+                start      : node.start,
+                end        : node.end,
                 args       : [new Cola.AST_SymbolRef({ name : "this" }), new Cola.AST_SymbolRef({ name : "arguments" })],
                 expression : new Cola.AST_Dot(props)
             });