conditional expressions

lib/ast.js

@@ -21,6 +21,7 @@ module.exports = {
   ThisExpression: require('./ast/expressions/ThisExpression').ThisExpression,
   SuperExpression: require('./ast/expressions/SuperExpression').SuperExpression,
   SplatExpression: require('./ast/expressions/SplatExpression').SplatExpression,
+  ConditionalExpression: require('./ast/expressions/ConditionalExpression').ConditionalExpression,
   BlockStatement: require('./ast/statements/BlockStatement').BlockStatement,
   ExpressionStatement: require('./ast/statements/ExpressionStatement').ExpressionStatement,
   IfStatement: require('./ast/statements/IfStatement').IfStatement,

lib/ast/expressions/ConditionalExpression.js

@@ -0,0 +1,34 @@
+var Node = require('../Node').Node;
+
+exports.ConditionalExpression = function (test, consequent, alternate) {
+  Node.call(this);
+
+  this.type = 'ConditionalExpression';
+
+  this.test = test;
+  this.test.parent = this;
+
+  this.consequent = consequent;
+  this.consequent.parent = this;
+
+  this.alternate = alternate;
+  this.alternate.parent = this;
+};
+
+exports.ConditionalExpression.prototype = Object.create(Node);
+
+exports.ConditionalExpression.prototype.codegen = function () {
+  if (!Node.prototype.codegen.call(this)) {
+    return;
+  }
+
+  this.test = this.test.codegen();
+  this.consequent = this.consequent.codegen();
+  this.alternate = this.alternate.codegen();
+
+  return this;
+};
+
+exports.ConditionalExpression.prototype.hasCallExpression = function () {
+  return true;
+};