feat(ExpressionParser): add support for this

modules/@angular/compiler/src/output/abstract_emitter.ts

@@ -283,7 +283,7 @@ export abstract class AbstractEmitterVisitor implements o.StatementVisitor, o.Ex
   abstract visitDeclareFunctionStmt(stmt: o.DeclareFunctionStmt, context: any): any;
 
   visitBinaryOperatorExpr(ast: o.BinaryOperatorExpr, ctx: EmitterVisitorContext): any {
-    var opStr: any /** TODO #9100 */;
+    var opStr: string;
     switch (ast.operator) {
       case o.BinaryOperator.Equals:
         opStr = '==';

modules/@angular/compiler/src/output/ts_emitter.ts

@@ -70,10 +70,12 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
       ctx.print(defaultType);
     }
   }
+
   visitExternalExpr(ast: o.ExternalExpr, ctx: EmitterVisitorContext): any {
     this._visitIdentifier(ast.value, ast.typeParams, ctx);
     return null;
   }
+
   visitDeclareVarStmt(stmt: o.DeclareVarStmt, ctx: EmitterVisitorContext): any {
     if (ctx.isExportedVar(stmt.name)) {
       ctx.print(`export `);
@@ -90,6 +92,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.println(`;`);
     return null;
   }
+
   visitCastExpr(ast: o.CastExpr, ctx: EmitterVisitorContext): any {
     ctx.print(`(<`);
     ast.type.visitType(this, ctx);
@@ -98,6 +101,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.print(`)`);
     return null;
   }
+
   visitDeclareClassStmt(stmt: o.ClassStmt, ctx: EmitterVisitorContext): any {
     ctx.pushClass(stmt);
     if (ctx.isExportedVar(stmt.name)) {
@@ -121,6 +125,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.popClass();
     return null;
   }
+
   private _visitClassField(field: o.ClassField, ctx: EmitterVisitorContext) {
     if (field.hasModifier(o.StmtModifier.Private)) {
       ctx.print(`private `);
@@ -130,6 +135,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     this.visitType(field.type, ctx);
     ctx.println(`;`);
   }
+
   private _visitClassGetter(getter: o.ClassGetter, ctx: EmitterVisitorContext) {
     if (getter.hasModifier(o.StmtModifier.Private)) {
       ctx.print(`private `);
@@ -143,6 +149,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.decIndent();
     ctx.println(`}`);
   }
+
   private _visitClassConstructor(stmt: o.ClassStmt, ctx: EmitterVisitorContext) {
     ctx.print(`constructor(`);
     this._visitParams(stmt.constructorMethod.params, ctx);
@@ -152,6 +159,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.decIndent();
     ctx.println(`}`);
   }
+
   private _visitClassMethod(method: o.ClassMethod, ctx: EmitterVisitorContext) {
     if (method.hasModifier(o.StmtModifier.Private)) {
       ctx.print(`private `);
@@ -166,6 +174,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.decIndent();
     ctx.println(`}`);
   }
+
   visitFunctionExpr(ast: o.FunctionExpr, ctx: EmitterVisitorContext): any {
     ctx.print(`(`);
     this._visitParams(ast.params, ctx);
@@ -178,6 +187,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.print(`}`);
     return null;
   }
+
   visitDeclareFunctionStmt(stmt: o.DeclareFunctionStmt, ctx: EmitterVisitorContext): any {
     if (ctx.isExportedVar(stmt.name)) {
       ctx.print(`export `);
@@ -193,6 +203,7 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.println(`}`);
     return null;
   }
+
   visitTryCatchStmt(stmt: o.TryCatchStmt, ctx: EmitterVisitorContext): any {
     ctx.println(`try {`);
     ctx.incIndent();
@@ -237,15 +248,18 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     ctx.print(typeStr);
     return null;
   }
+
   visitExternalType(ast: o.ExternalType, ctx: EmitterVisitorContext): any {
     this._visitIdentifier(ast.value, ast.typeParams, ctx);
     return null;
   }
+
   visitArrayType(type: o.ArrayType, ctx: EmitterVisitorContext): any {
     this.visitType(type.of, ctx);
     ctx.print(`[]`);
     return null;
   }
+
   visitMapType(type: o.MapType, ctx: EmitterVisitorContext): any {
     ctx.print(`{[key: string]:`);
     this.visitType(type.valueType, ctx);
@@ -271,7 +285,6 @@ class _TsEmitterVisitor extends AbstractEmitterVisitor implements o.TypeVisitor
     return name;
   }
 
-
   private _visitParams(params: o.FnParam[], ctx: EmitterVisitorContext): void {
     this.visitAllObjects((param: any /** TODO #9100 */) => {
       ctx.print(param.name);

modules/@angular/compiler/src/output/value_util.ts

@@ -21,6 +21,7 @@ class _ValueOutputAstTransformer implements ValueTransformer {
   visitArray(arr: any[], type: o.Type): o.Expression {
     return o.literalArr(arr.map(value => visitValue(value, this, null)), type);
   }
+
   visitStringMap(map: {[key: string]: any}, type: o.MapType): o.Expression {
     var entries: Array<string|o.Expression>[] = [];
     StringMapWrapper.forEach(map, (value: any, key: string) => {
@@ -28,7 +29,9 @@ class _ValueOutputAstTransformer implements ValueTransformer {
     });
     return o.literalMap(entries, type);
   }
+
   visitPrimitive(value: any, type: o.Type): o.Expression { return o.literal(value, type); }
+
   visitOther(value: any, type: o.Type): o.Expression {
     if (value instanceof CompileIdentifierMetadata) {
       return o.importExpr(value);