remove unused variables

lib/6to5/generator.js

@@ -3,7 +3,8 @@ module.exports = function (ast, opts) {
   return gen.generate(ast, opts);
 };
 
-var _ = require("lodash");
+var assert = require("assert");
+var _      = require("lodash");
 
 function CodeGenerator() {
   this.indent = this.indent.bind(this);
@@ -71,7 +72,7 @@ CodeGenerator.prototype.Program = function (node, print) {
   return print.sequence(node.body);
 };
 
-CodeGenerator.prototype.EmptyStatement = function (node, print) {
+CodeGenerator.prototype.EmptyStatement = function () {
   return "";
 };
 
@@ -101,7 +102,7 @@ CodeGenerator.prototype.Path = function (node, print) {
   return "." + print(node.body);
 };
 
-CodeGenerator.prototype.Identifier = function (node, print) {
+CodeGenerator.prototype.Identifier = function (node) {
   return node.name;
 };
 
@@ -137,7 +138,7 @@ CodeGenerator.prototype.ArrowFunctionExpression = function (node, print) {
   return code;
 };
 
-CodeGenerator.prototype.MethodDefinition = function (node, print) {
+CodeGenerator.prototype.MethodDefinition = function () {
   throw new Error("MethodDefinition");
 };
 
@@ -172,15 +173,15 @@ CodeGenerator.prototype.ExportSpecifier = function (node, print) {
   return code;
 };
 
-CodeGenerator.prototype.ExportBatchSpecifier = function (node, print) {
+CodeGenerator.prototype.ExportBatchSpecifier = function () {
   return "*";
 };
 
-CodeGenerator.prototype.ExportDeclaration = function (node, print) {
+CodeGenerator.prototype.ExportDeclaration = function () {
   throw new Error("ExportDeclaration");
 };
 
-CodeGenerator.prototype.ImportDeclaration = function (node, print) {
+CodeGenerator.prototype.ImportDeclaration = function () {
   throw new Error("ImportDeclaration");
 };
 
@@ -292,11 +293,11 @@ CodeGenerator.prototype.SequenceExpression = function (node, print) {
   return node.expressions.map(print).join(", ");
 };
 
-CodeGenerator.prototype.ThisExpression = function (node, print) {
+CodeGenerator.prototype.ThisExpression = function () {
   return "this";
 };
 
-CodeGenerator.prototype.Literal = function (node, print) {
+CodeGenerator.prototype.Literal = function (node) {
   var val  = node.value;
   var type = typeof val;
 
@@ -317,7 +318,7 @@ CodeGenerator.prototype.Literal = function (node, print) {
   }
 };
 
-CodeGenerator.prototype.ModuleSpecifier = function (node, print) {
+CodeGenerator.prototype.ModuleSpecifier = function (node) {
   return "\"" + node.value + "\"";
 };
 
@@ -505,7 +506,7 @@ CodeGenerator.prototype.SwitchCase = function (node, print) {
   return this.indent(code);
 };
 
-CodeGenerator.prototype.DebuggerStatement = function (node, print) {
+CodeGenerator.prototype.DebuggerStatement = function () {
   return "debugger;";
 };
 
@@ -582,7 +583,7 @@ CodeGenerator.prototype.XJSAttribute = function (node, print) {
   return code;
 };
 
-CodeGenerator.prototype.XJSIdentifier = function (node, print) {
+CodeGenerator.prototype.XJSIdentifier = function (node) {
   return node.name;
 };
 
@@ -602,7 +603,7 @@ CodeGenerator.prototype.XJSExpressionContainer = function (node, print) {
   return "{" + print(node.expression) + "}";
 };
 
-CodeGenerator.prototype.XJSElement = function (node, print) {
+CodeGenerator.prototype.XJSElement = function () {
   throw new Error("XJSElement");
 };
 
@@ -615,14 +616,14 @@ CodeGenerator.prototype.XJSOpeningElement = function (node, print) {
   return code;
 };
 
-CodeGenerator.prototype.XJSClosingElement = function (node, print) {
+CodeGenerator.prototype.XJSClosingElement = function (node) {
   return "</" + node.name + ">";
 };
 
-CodeGenerator.prototype.XJSText = function (node, print) {
+CodeGenerator.prototype.XJSText = function (node) {
   return node.value;
 };
 
-CodeGenerator.prototype.XJSEmptyExpression = function (node, print) {
+CodeGenerator.prototype.XJSEmptyExpression = function () {
   return "";
 };