From 0e6d52306b5d469bafef659705372fd0ad4c0407 Mon Sep 17 00:00:00 2001
From: vsavkin <vic.savkin@gmail.com>
Date: Tue, 11 Nov 2014 17:18:09 -0800
Subject: [PATCH] feat(change_detector): add support for ternary

---
 modules/change_detection/src/watch_group.js           | 11 ++++++++++-
 modules/change_detection/test/change_detector_spec.js |  5 +++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/modules/change_detection/src/watch_group.js b/modules/change_detection/src/watch_group.js
index 3563852cd7..fd25d4f67f 100644
--- a/modules/change_detection/src/watch_group.js
+++ b/modules/change_detection/src/watch_group.js
@@ -3,7 +3,7 @@ import {ProtoRecord, Record, PROTO_RECORD_CONST, PROTO_RECORD_PURE_FUNCTION,
 import {FIELD, IMPLEMENTS, isBlank, isPresent, int, toBool, autoConvertAdd, BaseException} from 'facade/lang';
 import {ListWrapper} from 'facade/collection';
 import {AST, AccessMember, ImplicitReceiver, AstVisitor, LiteralPrimitive,
-  Binary, Formatter, MethodCall, FunctionCall, PrefixNot} from './parser/ast';
+  Binary, Formatter, MethodCall, FunctionCall, PrefixNot, Conditional} from './parser/ast';
 
 export class ProtoWatchGroup {
   @FIELD('headRecord:ProtoRecord')
@@ -214,6 +214,14 @@ class ProtoRecordCreator {
     this.add(record);
   }
 
+  visitConditional(ast:Conditional, dest) {
+    var record = this.construct(PROTO_RECORD_PURE_FUNCTION, _cond, 3, dest);
+    ast.condition.visit(this, new Destination(record, 0));
+    ast.trueExp.visit(this, new Destination(record, 1));
+    ast.falseExp.visit(this, new Destination(record, 2));
+    this.add(record);
+  }
+
   createRecordsFromAST(ast:AST, memento){
     ast.visit(this, memento);
   }
@@ -267,4 +275,5 @@ function _operation_less_or_equals_then(left, right)    {return left <= right;}
 function _operation_greater_or_equals_then(left, right) {return left >= right;}
 function _operation_logical_and(left, right)            {return left && right;}
 function _operation_logical_or(left, right)             {return left || right;}
+function _cond(cond, trueVal, falseVal)    {return cond ? trueVal : falseVal;}
 
diff --git a/modules/change_detection/test/change_detector_spec.js b/modules/change_detection/test/change_detector_spec.js
index b85507fc27..abe1ca2d84 100644
--- a/modules/change_detection/test/change_detector_spec.js
+++ b/modules/change_detection/test/change_detector_spec.js
@@ -126,6 +126,11 @@ export function main() {
         expect(executeWatch('exp', '!!true')).toEqual(['exp=true']);
       });
 
+      it("should support conditionals", () => {
+        expect(executeWatch('m', '1 < 2 ? 1 : 2')).toEqual(['m=1']);
+        expect(executeWatch('m', '1 > 2 ? 1 : 2')).toEqual(['m=2']);
+      });
+
       it("should support formatters", () => {
         var formatters = {
           "uppercase" : (v) => v.toUpperCase(),