feat(change_detection): add support for pipes in the template

modules/angular2/src/change_detection/parser/ast.js

@@ -170,31 +170,15 @@ export class KeyedAccess extends AST {
   }
 }
 
-export class Formatter extends AST {
+export class Pipe extends AST {
   exp:AST;
   name:string;
   args:List<AST>;
-  allArgs:List<AST>;
   constructor(exp:AST, name:string, args:List) {
     super();
     this.exp = exp;
     this.name = name;
     this.args = args;
-    this.allArgs = ListWrapper.concat([exp], args);
-  }
-
-  visit(visitor) {
-    return visitor.visitFormatter(this);
-  }
-}
-
-export class Pipe extends AST {
-  exp:AST;
-  name:string;
-  constructor(exp:AST, name:string) {
-    super();
-    this.exp = exp;
-    this.name = name;
   }
 
   visit(visitor) {
@@ -459,7 +443,6 @@ export class AstVisitor {
   visitBinary(ast:Binary) {}
   visitChain(ast:Chain){}
   visitConditional(ast:Conditional) {}
-  visitFormatter(ast:Formatter) {}
   visitPipe(ast:Pipe) {}
   visitFunctionCall(ast:FunctionCall) {}
   visitImplicitReceiver(ast:ImplicitReceiver) {}

modules/angular2/src/change_detection/parser/parser.js

@@ -13,7 +13,6 @@ import {
   Binary,
   PrefixNot,
   Conditional,
-  Formatter,
   Pipe,
   Assignment,
   Chain,
@@ -57,7 +56,7 @@ export class Parser {
     if (ListWrapper.isEmpty(pipes)) return bindingAst;
 
     var res = ListWrapper.reduce(pipes,
-      (result, currentPipeName) => new Pipe(result, currentPipeName),
+      (result, currentPipeName) => new Pipe(result, currentPipeName, []),
       bindingAst.ast);
     return new ASTWithSource(res, bindingAst.source, bindingAst.location);
   }
@@ -191,7 +190,7 @@ class _ParseAST {
   parseChain():AST {
     var exprs = [];
     while (this.index < this.tokens.length) {
-      var expr = this.parseFormatter();
+      var expr = this.parsePipe();
       ListWrapper.push(exprs, expr);
 
       if (this.optionalCharacter($SEMICOLON)) {
@@ -208,18 +207,18 @@ class _ParseAST {
     return new Chain(exprs);
   }
 
-  parseFormatter() {
+  parsePipe() {
     var result = this.parseExpression();
     while (this.optionalOperator("|")) {
       if (this.parseAction) {
-        this.error("Cannot have a formatter in an action expression");
+        this.error("Cannot have a pipe in an action expression");
       }
       var name = this.expectIdentifierOrKeyword();
       var args = ListWrapper.create();
       while (this.optionalCharacter($COLON)) {
         ListWrapper.push(args, this.parseExpression());
       }
-      result = new Formatter(result, name, args);
+      result = new Pipe(result, name, args);
     }
     return result;
   }
@@ -380,7 +379,7 @@ class _ParseAST {
 
   parsePrimary() {
     if (this.optionalCharacter($LPAREN)) {
-      var result = this.parseFormatter();
+      var result = this.parsePipe();
       this.expectCharacter($RPAREN);
       return result;