Move PrenotCalculator from Bazel examples to rules_apple examples.

This also migrates the example to the new rules_apple ios_application rule, since the native Bazel rule is being deleted.

PiperOrigin-RevId: 168902357

27 files changed, 0 insertions, 1241 deletions

diff --git a/examples/BUILD b/examples/BUILD
index c86c71996a..b33cb8ab32 100644
--- a/examples/BUILD
+++ b/examples/BUILD
@@ -8,7 +8,6 @@ filegroup(
         "//examples/gen:srcs",
         "//examples/java-native:srcs",
         "//examples/java-skylark:srcs",
-        "//examples/objc:srcs",
         "//examples/py:srcs",
         "//examples/py_native:srcs",
         "//examples/shell:srcs",
diff --git a/examples/objc/BUILD b/examples/objc/BUILD
deleted file mode 100644
index d6c833dffe..0000000000
--- a/examples/objc/BUILD
+++ /dev/null
@@ -1,85 +0,0 @@
-# Copyright 2015 The Bazel Authors. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-ios_application(
-    name = "PrenotCalculator",
-    binary = ":PrenotCalculator_binary",
-    bundles = [":PrenotCalculatorResources"],
-    datamodels = glob(["PrenotCalculator/DataModel.xcdatamodeld/**"]),
-    infoplist = "PrenotCalculator/PrenotCalculator-Info.plist",
-    visibility = ["//visibility:public"],
-    xibs = ["PrenotCalculator/CalculatorViewController.xib"],
-)
-
-objc_binary(
-    name = "PrenotCalculator_binary",
-    srcs = [
-        "PrenotCalculator/AppDelegate.m",
-        "PrenotCalculator/CalculatedValues.m",
-        "PrenotCalculator/CalculatorViewController.m",
-        "PrenotCalculator/CoreData.m",
-        "PrenotCalculator/Equation.m",
-        "PrenotCalculator/Literal.m",
-        "PrenotCalculator/ValuesViewController.m",
-        "PrenotCalculator/main.m",
-    ],
-    hdrs = glob(
-        ["**/*.h"],
-        exclude = ["PrenotCalculator/Expression.h"],
-    ),
-    sdk_frameworks = ["CoreData"],
-    deps = [":ExpressionPrebuilt"],
-)
-
-# A prebuilt library that contains multiple architectures.
-# Currently compiled for: i386, x86_64, armv7.
-objc_import(
-    name = "ExpressionPrebuilt",
-    hdrs = ["PrenotCalculator/Expression.h"],
-    archives = [
-        "expression_prebuilt.a",
-    ],
-)
-
-# Don't use this directly, instead use it to construct ExpressionPrebuilt and
-# depend on that instead.
-# You can build using the following command:
-#    for i in armv7 arm64 i386 x86_64; \
-#    do output/bazel build --xcode_version=7.2 --ios_sdk_version=9.2 --ios_cpu=$i examples/objc:ExpressionClasses; \
-#    mv bazel-bin/examples/objc/libExpressionClasses.a bazel-bin/examples/objc/libExpressionClasses_$i.a; \
-#    done; \
-#    xcrun lipo -create bazel-bin/examples/objc/libExpressionClasses_{armv7,arm64,i386,x86_64}.a -output bazel-bin/examples/objc/expression_prebuilt.a \
-#    cp bazel-bin/examples/objc/expression_prebuilt.a examples/objc/expression_prebuilt.a
-# You may need to adjust the xcode_version and ios_sdk_versions as appropriate.
-objc_library(
-    name = "ExpressionClasses",
-    srcs = [
-        "PrenotCalculator/Expression.m",
-    ],
-    hdrs = ["PrenotCalculator/Expression.h"],
-)
-
-objc_bundle_library(
-    name = "PrenotCalculatorResources",
-    resources = glob(["PrenotCalculator/Resources/**"]),
-)
-
-filegroup(
-    name = "srcs",
-    srcs = glob([
-        "**",
-        "BUILD",
-    ]),
-    visibility = ["//examples:__pkg__"],
-)
diff --git a/examples/objc/PrenotCalculator/AppDelegate.h b/examples/objc/PrenotCalculator/AppDelegate.h
deleted file mode 100644
index 01b55df3d1..0000000000
--- a/examples/objc/PrenotCalculator/AppDelegate.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <UIKit/UIKit.h>
-
-@interface AppDelegate : UIResponder <UIApplicationDelegate>
-
-@property (strong, nonatomic) UIWindow *window;
-
-@end
diff --git a/examples/objc/PrenotCalculator/AppDelegate.m b/examples/objc/PrenotCalculator/AppDelegate.m
deleted file mode 100644
index 3e61f8bb72..0000000000
--- a/examples/objc/PrenotCalculator/AppDelegate.m
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "AppDelegate.h"
-
-#import "CalculatorViewController.h"
-#import "ValuesViewController.h"
-
-@implementation AppDelegate
-
-- (BOOL)application:(UIApplication *)application
-    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-  [self validateBundleLibrary];
-
-  UITabBarController *bar = [[UITabBarController alloc] init];
-  [bar setViewControllers:
-      @[[[CalculatorViewController alloc] init], [[ValuesViewController alloc] init]]];
-  bar.selectedIndex = 0;
-  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
-  self.window.rootViewController = bar;
-  [self.window makeKeyAndVisible];
-  return YES;
-}
-
-- (void)applicationWillResignActive:(UIApplication *)application {}
-
-- (void)applicationDidEnterBackground:(UIApplication *)application {}
-
-- (void)applicationWillEnterForeground:(UIApplication *)application {}
-
-- (void)applicationDidBecomeActive:(UIApplication *)application {}
-
-- (void)applicationWillTerminate:(UIApplication *)application {}
-
-- (void)validateBundleLibrary {
-  NSString *bundlePath = [[[NSBundle mainBundle] bundlePath]
-      stringByAppendingPathComponent:@"PrenotCalculatorResources.bundle"];
-  NSBundle *bundle = [NSBundle bundleWithPath:bundlePath];
-  NSString *testPath = [bundle pathForResource:@"test" ofType:@"txt"];
-  NSString *testContents = [NSString stringWithContentsOfFile:testPath
-                                                     encoding:NSUTF8StringEncoding
-                                                        error:NULL];
-  NSAssert([testContents hasSuffix:@"It worked!\n"],
-           @"Unable to find file given mainBundle: %@",
-           [[NSBundle mainBundle] description]);
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/CalculatedValues.h b/examples/objc/PrenotCalculator/CalculatedValues.h
deleted file mode 100644
index 2c29bef6c1..0000000000
--- a/examples/objc/PrenotCalculator/CalculatedValues.h
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <Foundation/Foundation.h>
-
-#import "Equation.h"
-#import "Expression.h"
-
-@interface CalculatedValues : NSObject
-
-+ (CalculatedValues *)sharedInstance;
-
-- (NSArray *)values;
-
-- (void)addEquation:(Equation *)equation;
-
-@end
diff --git a/examples/objc/PrenotCalculator/CalculatedValues.m b/examples/objc/PrenotCalculator/CalculatedValues.m
deleted file mode 100644
index 2ea8ed8ee2..0000000000
--- a/examples/objc/PrenotCalculator/CalculatedValues.m
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "CalculatedValues.h"
-
-#import "Equation.h"
-
-@implementation CalculatedValues {
-  NSMutableArray *_values;
-}
-
-+ (CalculatedValues *)sharedInstance {
-  static CalculatedValues *values = nil;
-  if (!values) {
-    values = [[[self class] alloc] init];
-  }
-  return values;
-}
-
-- (id)init {
-  self = [super init];
-  if (self) {
-    _values = [NSMutableArray array];
-  }
-  return self;
-}
-
-- (NSArray *)values {
-  return [_values copy];
-}
-
-- (void)addEquation:(Equation *)equation {
-  [_values addObject:
-      [NSString stringWithFormat:@"%@ = %0.2lf", equation, [equation calculate]]];
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/CalculatorViewController.h b/examples/objc/PrenotCalculator/CalculatorViewController.h
deleted file mode 100644
index 6b53d7d60d..0000000000
--- a/examples/objc/PrenotCalculator/CalculatorViewController.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <UIKit/UIKit.h>
-
-@interface CalculatorViewController : UIViewController
-
-- (IBAction)enterDigit:(id)sender;
-
-- (IBAction)finish:(id)sender;
-
-- (IBAction)operate:(id)sender;
-
-@property (weak, nonatomic) IBOutlet UIButton *divideButton;
-@property (weak, nonatomic) IBOutlet UIButton *multiplyButton;
-@property (weak, nonatomic) IBOutlet UIButton *plusButton;
-@property (weak, nonatomic) IBOutlet UIButton *minusButton;
-@property (strong, nonatomic) IBOutletCollection(UIButton)
-    NSArray *nonZeroDigitButtons;
-@property (weak, nonatomic) IBOutlet UILabel *resultLabel;
-@property (weak, nonatomic) IBOutlet UIButton *finishButton;
-@property (weak, nonatomic) IBOutlet UIButton *zeroButton;
-
-@end
diff --git a/examples/objc/PrenotCalculator/CalculatorViewController.m b/examples/objc/PrenotCalculator/CalculatorViewController.m
deleted file mode 100644
index 6e755a9ad5..0000000000
--- a/examples/objc/PrenotCalculator/CalculatorViewController.m
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "CalculatorViewController.h"
-
-#import "CalculatedValues.h"
-#import "CoreData.h"
-#import "Equation.h"
-#import "Expression.h"
-#import "Literal.h"
-
-@interface CalculatorViewController ()
-- (void)updateEnabledViews;
-- (void)updateButtonColor:(UIButton *)button;
-@end
-
-@implementation CalculatorViewController {
-  NSMutableArray *_locationStack;
-  NSMutableString *_currentNumber;
-}
-
-- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
-  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
-  if (self) {
-    self.title = @"Calculator";
-    CoreData *coreData = [[CoreData alloc] init];
-    [coreData verify];
-  }
-  return self;
-}
-
-- (void)viewDidLoad {
-  [super viewDidLoad];
-  _locationStack = [NSMutableArray array];
-  _currentNumber = [NSMutableString stringWithString:@""];
-  [self updateEnabledViews];
-}
-
-- (IBAction)enterDigit:(id)sender {
-  UIButton *button = (UIButton *)sender;
-  [_currentNumber appendString:button.titleLabel.text];
-  self.resultLabel.text = _currentNumber;
-  [self updateEnabledViews];
-}
-
-- (IBAction)finish:(id)sender {
-  if (![_locationStack count]) {
-    _currentNumber = [NSMutableString stringWithString:@""];
-    self.resultLabel.text = @"hello";
-  }
-  if (![_locationStack count]) {
-    _currentNumber = [NSMutableString stringWithString:@""];
-  } else if ([_currentNumber length]) {
-    Equation *last = [_locationStack lastObject];
-    [last addExpressionAsChild:[[Literal alloc] initWithDouble:
-        atof([_currentNumber cStringUsingEncoding:NSUTF8StringEncoding])]];
-    _currentNumber = [NSMutableString stringWithString:@""];
-    self.resultLabel.text = [NSString stringWithFormat:@"%@", last];
-  } else {
-    Equation *popped = [_locationStack lastObject];
-    [_locationStack removeLastObject];
-    [[CalculatedValues sharedInstance] addEquation:popped];
-    self.resultLabel.text =
-        [NSString stringWithFormat:@"%lf", [popped calculate]];
-  }
-  [self updateEnabledViews];
-}
-
-- (IBAction)operate:(id)sender {
-  Operation operation;
-  if ([_currentNumber length]) {
-    // finish the current number first automatically:
-    [self finish:nil];
-  }
-  if (sender == self.multiplyButton) {
-    operation = kMultiply;
-  } else if (sender == self.plusButton) {
-    operation = kAdd;
-  } else if (sender == self.divideButton) {
-    operation = kDivide;
-  } else if (sender == self.minusButton) {
-    operation = kSubtract;
-  } else {
-    // Shouldn't happen
-    operation = kAdd;
-  }
-  Equation *newEquation = [[Equation alloc] initWithOperation:operation];
-  if ([_locationStack count]) {
-    [[_locationStack lastObject] addExpressionAsChild:newEquation];
-  }
-  [_locationStack addObject:newEquation];
-  self.resultLabel.text = [NSString stringWithFormat:@"%@", _locationStack[0]];
-  [self updateEnabledViews];
-}
-
-#pragma mark - Private
-
-
-- (void)updateEnabledViews {
-  self.finishButton.enabled = [_locationStack count] || [_currentNumber length];
-  [self updateButtonColor:self.finishButton];
-  self.zeroButton.enabled = self.finishButton.enabled;
-  [self updateButtonColor:self.zeroButton];
-  BOOL enableNonZeroDigits = ![_currentNumber isEqualToString:@"0"];
-  for (UIButton *digit in self.nonZeroDigitButtons) {
-    digit.enabled = enableNonZeroDigits;
-    [self updateButtonColor:digit];
-  }
-}
-
-- (void)updateButtonColor:(UIButton *)button {
-  button.backgroundColor = button.enabled ?
-      [UIColor whiteColor] : [UIColor grayColor];
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/CalculatorViewController.xib b/examples/objc/PrenotCalculator/CalculatorViewController.xib
deleted file mode 100644
index f93dd821f7..0000000000
--- a/examples/objc/PrenotCalculator/CalculatorViewController.xib
+++ /dev/null
@@ -1,257 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!--
- Copyright 2015 The Bazel Authors. All rights reserved.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="4510" systemVersion="13E28" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3742"/>
-    </dependencies>
-    <objects>
-        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="CalculatorViewController">
-            <connections>
-                <outlet property="divideButton" destination="STk-6l-Wip" id="gGY-Iy-x7P"/>
-                <outlet property="finishButton" destination="21D-tW-sLR" id="GnM-vO-sHD"/>
-                <outlet property="minusButton" destination="7W2-TS-tLI" id="Wuh-b2-g8J"/>
-                <outlet property="multiplyButton" destination="dwp-YR-bfM" id="MHy-Ot-4Hd"/>
-                <outlet property="plusButton" destination="4rB-gA-S5X" id="9kZ-af-Os4"/>
-                <outlet property="resultLabel" destination="N03-1W-Z1G" id="YjW-BO-1Ta"/>
-                <outlet property="view" destination="1" id="3"/>
-                <outlet property="zeroButton" destination="YUO-Hc-CsJ" id="dgK-Dt-4YR"/>
-                <outletCollection property="nonZeroDigitButtons" destination="2ud-fg-6iP" id="SNy-6m-XHb"/>
-                <outletCollection property="nonZeroDigitButtons" destination="1Od-z8-5N1" id="Iq0-uY-IaD"/>
-                <outletCollection property="nonZeroDigitButtons" destination="1s9-bG-Fyv" id="CZv-no-Ubi"/>
-                <outletCollection property="nonZeroDigitButtons" destination="Y9P-jJ-ztr" id="nfC-U0-yxl"/>
-                <outletCollection property="nonZeroDigitButtons" destination="Iiq-p2-KYo" id="5A3-Y3-95R"/>
-                <outletCollection property="nonZeroDigitButtons" destination="zR0-hJ-XV8" id="5x0-pC-eis"/>
-                <outletCollection property="nonZeroDigitButtons" destination="Y4i-o9-uQp" id="qP7-dC-GQ0"/>
-                <outletCollection property="nonZeroDigitButtons" destination="auh-CA-fzQ" id="NiV-AO-FiS"/>
-                <outletCollection property="nonZeroDigitButtons" destination="CuZ-P3-3iO" id="snu-lY-DUt"/>
-            </connections>
-        </placeholder>
-        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
-        <view contentMode="scaleToFill" id="1">
-            <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
-            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-            <subviews>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="hello" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="N03-1W-Z1G">
-                    <rect key="frame" x="20" y="20" width="280" height="45"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
-                    <fontDescription key="fontDescription" name="CourierNewPS-BoldMT" family="Courier New" pointSize="24"/>
-                    <color key="textColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
-                    <nil key="highlightedColor"/>
-                </label>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Y4i-o9-uQp">
-                    <rect key="frame" x="44" y="73" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="7">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="oJx-RX-3SU"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="auh-CA-fzQ">
-                    <rect key="frame" x="123" y="73" width="73" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="8">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="pDd-AA-AXS"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="CuZ-P3-3iO">
-                    <rect key="frame" x="205" y="73" width="70" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="9">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="mdP-nK-k9T"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Y9P-jJ-ztr">
-                    <rect key="frame" x="44" y="149" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="4">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="Eye-1S-G5k"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Iiq-p2-KYo">
-                    <rect key="frame" x="123" y="149" width="73" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="5">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="NJt-1M-OKG"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="zR0-hJ-XV8">
-                    <rect key="frame" x="205" y="149" width="70" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="6">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="iZc-DU-5Nf"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="2ud-fg-6iP">
-                    <rect key="frame" x="44" y="225" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="1">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="sr8-xD-Dop"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="1Od-z8-5N1">
-                    <rect key="frame" x="125" y="225" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="2">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="r1w-Qx-lmh"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="1s9-bG-Fyv">
-                    <rect key="frame" x="204" y="225" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="3">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="z3W-9d-k3D"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="YUO-Hc-CsJ">
-                    <rect key="frame" x="125" y="301" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="0">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="enterDigit:" destination="-1" eventType="touchUpInside" id="E2G-nh-OjY"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="21D-tW-sLR">
-                    <rect key="frame" x="205" y="301" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="↩">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="finish:" destination="-1" eventType="touchUpInside" id="Gr9-nP-eFW"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="4rB-gA-S5X">
-                    <rect key="frame" x="44" y="301" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="+">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="operate:" destination="-1" eventType="touchUpInside" id="pPf-Dl-b44"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="dwp-YR-bfM">
-                    <rect key="frame" x="44" y="377" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="✕">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="operate:" destination="-1" eventType="touchUpInside" id="f6K-EQ-j18"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="7W2-TS-tLI">
-                    <rect key="frame" x="125" y="377" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="-">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="operate:" destination="-1" eventType="touchUpInside" id="MRD-ct-q82"/>
-                    </connections>
-                </button>
-                <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="STk-6l-Wip">
-                    <rect key="frame" x="205" y="377" width="71" height="68"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                    <color key="backgroundColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <fontDescription key="fontDescription" name="HelveticaNeue-Bold" family="Helvetica Neue" pointSize="15"/>
-                    <state key="normal" title="÷">
-                        <color key="titleColor" red="1" green="1" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
-                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
-                    </state>
-                    <connections>
-                        <action selector="operate:" destination="-1" eventType="touchUpInside" id="7cN-RA-mPR"/>
-                    </connections>
-                </button>
-            </subviews>
-            <color key="backgroundColor" red="0.0" green="0.79869981749999996" blue="0.78823562960000004" alpha="1" colorSpace="calibratedRGB"/>
-            <simulatedStatusBarMetrics key="simulatedStatusBarMetrics"/>
-            <simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina4"/>
-        </view>
-    </objects>
-</document>
\ No newline at end of file
diff --git a/examples/objc/PrenotCalculator/CoreData.h b/examples/objc/PrenotCalculator/CoreData.h
deleted file mode 100644
index 1f29db1a23..0000000000
--- a/examples/objc/PrenotCalculator/CoreData.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <Foundation/Foundation.h>
-
-// A simple class to confirm CoreData versioning works properly.
-@interface CoreData : NSObject
-
-// Check that the datamodel was loaded properly.
-- (void)verify;
-
-@end
diff --git a/examples/objc/PrenotCalculator/CoreData.m b/examples/objc/PrenotCalculator/CoreData.m
deleted file mode 100644
index b3ba6049a3..0000000000
--- a/examples/objc/PrenotCalculator/CoreData.m
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "CoreData.h"
-
-@implementation CoreData
-- (id)init {
-  self = [super init];
-  if (self) {
-
-  }
-  return self;
-}
-
-- (void)verify {
-  NSURL *modelURL = [self modelURL];
-  NSAssert(modelURL,
-           @"Unable to find modelURL given mainBundle: %@",
-           [[NSBundle mainBundle] description]);
-}
-
-#pragma mark Private Methods.
-
-- (NSURL *)modelURL {
-  NSBundle *bundle = [NSBundle bundleForClass:[CoreData class]];
-  NSURL *modelURL = [bundle URLForResource:@"DataModel" withExtension:@"momd"];
-  return modelURL;
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/.xccurrentversion b/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/.xccurrentversion
deleted file mode 100644
index b776fdca6b..0000000000
--- a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/.xccurrentversion
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
- Copyright 2015 The Bazel Authors. All rights reserved.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>_XCCurrentVersionName</key>
-	<string>DataModel-1.1.xcdatamodel</string>
-</dict>
-</plist>
diff --git a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.0.xcdatamodel/contents b/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.0.xcdatamodel/contents
deleted file mode 100644
index 05b9a8b8db..0000000000
--- a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.0.xcdatamodel/contents
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<!--
- Copyright 2015 The Bazel Authors. All rights reserved.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="5063" systemVersion="13C1021" minimumToolsVersion="Xcode 4.3" macOSVersion="Automatic" iOSVersion="Automatic">
-    <entity name="PCModel" representedClassName="PCModel" syncable="YES">
-        <attribute name="one" optional="YES" attributeType="Boolean" syncable="YES"/>
-    </entity>
-    <elements>
-        <element name="PCModel" positionX="0" positionY="0" width="128" height="135"/>
-    </elements>
-</model>
\ No newline at end of file
diff --git a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.1.xcdatamodel/contents b/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.1.xcdatamodel/contents
deleted file mode 100644
index 02a74ec948..0000000000
--- a/examples/objc/PrenotCalculator/DataModel.xcdatamodeld/DataModel-1.1.xcdatamodel/contents
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<!--
- Copyright 2015 The Bazel Authors. All rights reserved.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="5063" systemVersion="13C1021" minimumToolsVersion="Xcode 4.3" macOSVersion="Automatic" iOSVersion="Automatic">
-    <entity name="PCModel" representedClassName="PCModel" syncable="YES">
-        <attribute name="one" optional="YES" attributeType="Boolean" syncable="YES"/>
-        <attribute name="two" optional="YES" attributeType="Boolean" syncable="YES"/>
-    </entity>
-    <elements>
-        <element name="PCModel" positionX="0" positionY="0" width="128" height="135"/>
-    </elements>
-</model>
\ No newline at end of file
diff --git a/examples/objc/PrenotCalculator/Equation.h b/examples/objc/PrenotCalculator/Equation.h
deleted file mode 100644
index d6192ea0b7..0000000000
--- a/examples/objc/PrenotCalculator/Equation.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <Foundation/Foundation.h>
-
-#import "Expression.h"
-
-typedef enum {
-  kAdd,
-  kSubtract,
-  kMultiply,
-  kDivide
-} Operation;
-
-@interface Equation : Expression
-
-@property (nonatomic, assign) Operation operation;
-
-- (id)initWithOperation:(Operation)operation;
-- (NSArray *)children;
-- (void)addExpressionAsChild:(Expression *)child;
-
-@end
diff --git a/examples/objc/PrenotCalculator/Equation.m b/examples/objc/PrenotCalculator/Equation.m
deleted file mode 100644
index 2bf8f5f67c..0000000000
--- a/examples/objc/PrenotCalculator/Equation.m
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "Equation.h"
-
-@implementation Equation {
-  NSMutableArray *_children;
-}
-
-@synthesize operation = _operation;
-
-- (id)init {
-  [self doesNotRecognizeSelector:_cmd];
-  return nil;
-}
-
-- (id)initWithOperation:(Operation)operation {
-  self = [super init];
-  if (self) {
-    _children = [NSMutableArray array];
-    _operation = operation;
-  }
-  return self;
-}
-
-- (NSArray *)children {
-  return [_children copy];
-}
-
-- (void)addExpressionAsChild:(Expression *)child {
-  [_children addObject:child];
-}
-
-- (double)calculate {
-  if ([_children count] == 1) {
-    return (_operation == kSubtract)
-        ? -[_children[0] calculate] : [_children[0] calculate];
-  } else if ([_children count] == 0) {
-    return (_operation == kSubtract || _operation == kAdd) ? 0 : 1;
-  }
-  double value = [_children[0] calculate];
-  for (Equation *child in [_children subarrayWithRange:
-      NSMakeRange(1, [_children count] - 1)]) {
-    double childValue = [child calculate];
-    switch (_operation) {
-      case kAdd:
-        value += childValue;
-        break;
-      case kSubtract:
-        value -= childValue;
-        break;
-      case kMultiply:
-        value *= childValue;
-        break;
-      case kDivide:
-        value /= childValue;
-        break;
-    }
-  }
-  return value;
-}
-
-- (NSString *)description {
-  NSMutableString *result = [[NSMutableString alloc] init];
-  [result appendString:@"("];
-  switch (_operation) {
-    case kAdd:
-      [result appendString:@"+"];
-      break;
-    case kSubtract:
-      [result appendString:@"-"];
-      break;
-    case kMultiply:
-      [result appendString:@"*"];
-      break;
-    case kDivide:
-      [result appendString:@"/"];
-      break;
-  }
-  for (Equation *child in _children) {
-    [result appendString:@" "];
-    [result appendString:[child description]];
-  }
-  [result appendString:@")"];
-  return [result copy];
-}
-
-- (BOOL)isEqual:(id)object {
-  if (![object isKindOfClass:[self class]]) {
-    return NO;
-  }
-  Equation *other = object;
-  return other->_operation == _operation &&
-      [other->_children isEqual:_children];
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/Expression.h b/examples/objc/PrenotCalculator/Expression.h
deleted file mode 100644
index ab6be2742e..0000000000
--- a/examples/objc/PrenotCalculator/Expression.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <Foundation/Foundation.h>
-
-@interface Expression : NSObject
-
-- (double)calculate;
-
-@end
diff --git a/examples/objc/PrenotCalculator/Expression.m b/examples/objc/PrenotCalculator/Expression.m
deleted file mode 100644
index 5a304d791d..0000000000
--- a/examples/objc/PrenotCalculator/Expression.m
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "Expression.h"
-
-@implementation Expression
-
-- (double)calculate {
-  [self doesNotRecognizeSelector:_cmd];
-  return NAN;
-}
-
-- (BOOL)isEqual:(id)object {
-  [self doesNotRecognizeSelector:_cmd];
-  return NO;
-}
-
-- (NSString *)description {
-  [self doesNotRecognizeSelector:_cmd];
-  return nil;
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/Literal.h b/examples/objc/PrenotCalculator/Literal.h
deleted file mode 100644
index fab3369b55..0000000000
--- a/examples/objc/PrenotCalculator/Literal.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "Expression.h"
-
-@interface Literal : Expression
-
-- (id)initWithDouble:(double)value;
-
-@end
diff --git a/examples/objc/PrenotCalculator/Literal.m b/examples/objc/PrenotCalculator/Literal.m
deleted file mode 100644
index d3c8ed7802..0000000000
--- a/examples/objc/PrenotCalculator/Literal.m
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "Literal.h"
-
-@implementation Literal {
-  double _value;
-}
-
-- (id)initWithDouble:(double)value {
-  self = [super init];
-  if (self) {
-    _value = value;
-  }
-  return self;
-}
-
-- (double)calculate {
-  return _value;
-}
-
-- (NSString *)description {
-  return [NSString stringWithFormat:@"%0.2lf", _value];
-}
-
-- (BOOL)isEqual:(id)object {
-  if (![object isKindOfClass:[self class]]) {
-    return NO;
-  }
-  return _value == ((Literal *)object)->_value;
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/PrenotCalculator-Info.plist b/examples/objc/PrenotCalculator/PrenotCalculator-Info.plist
deleted file mode 100644
index 71f8c75bd4..0000000000
--- a/examples/objc/PrenotCalculator/PrenotCalculator-Info.plist
+++ /dev/null
@@ -1,60 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
- Copyright 2015 The Bazel Authors. All rights reserved.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>en</string>
-	<key>CFBundleDisplayName</key>
-	<string>PrenotCalculator</string>
-	<key>CFBundleExecutable</key>
-	<string>PrenotCalculator</string>
-	<key>CFBundleIdentifier</key>
-	<string>Google.PrenotCalculator</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>PrenotCalculator</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
-	<key>CFBundleSignature</key>
-	<string>????</string>
-	<key>CFBundleVersion</key>
-	<string>1.0</string>
-	<key>LSRequiresIPhoneOS</key>
-	<true/>
-	<key>UIRequiredDeviceCapabilities</key>
-	<array>
-		<string>armv7</string>
-	</array>
-	<key>UISupportedInterfaceOrientations</key>
-	<array>
-		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
-	</array>
-	<key>UISupportedInterfaceOrientations~ipad</key>
-	<array>
-		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationPortraitUpsideDown</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
-	</array>
-</dict>
-</plist>
diff --git a/examples/objc/PrenotCalculator/Resources/test.txt b/examples/objc/PrenotCalculator/Resources/test.txt
deleted file mode 100644
index 3dc3aa5164..0000000000
--- a/examples/objc/PrenotCalculator/Resources/test.txt
+++ /dev/null
@@ -1 +0,0 @@
-It worked!
diff --git a/examples/objc/PrenotCalculator/ValuesViewController.h b/examples/objc/PrenotCalculator/ValuesViewController.h
deleted file mode 100644
index 4034f89c7a..0000000000
--- a/examples/objc/PrenotCalculator/ValuesViewController.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <UIKit/UIKit.h>
-
-@interface ValuesViewController : UITableViewController
-
-@end
diff --git a/examples/objc/PrenotCalculator/ValuesViewController.m b/examples/objc/PrenotCalculator/ValuesViewController.m
deleted file mode 100644
index c6c9499c3f..0000000000
--- a/examples/objc/PrenotCalculator/ValuesViewController.m
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import "ValuesViewController.h"
-
-#import "CalculatedValues.h"
-
-@interface ValuesViewController ()
-
-@end
-
-@implementation ValuesViewController
-
-- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
-  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
-  if (self) {
-    self.title = @"Values";
-  }
-  return self;
-}
-
-#pragma mark - Table view data source
-
-- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
-  return 1;
-}
-
-- (NSInteger)tableView:(UITableView *)tableView
-    numberOfRowsInSection:(NSInteger)section {
-  return [[[CalculatedValues sharedInstance] values] count];
-}
-
-- (UITableViewCell *)tableView:(UITableView *)tableView
-         cellForRowAtIndexPath:(NSIndexPath *)indexPath {
-  static NSString *CellIdentifier = @"Cell";
-  UITableViewCell *cell =
-      [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
-  if (!cell) {
-    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
-                                  reuseIdentifier:CellIdentifier];
-  }
-
-  cell.textLabel.text =
-      [CalculatedValues sharedInstance].values[[indexPath indexAtPosition:1]];
-
-  return cell;
-}
-
-- (void)viewDidAppear:(BOOL)animated {
-  [self.tableView reloadData];
-}
-
-@end
diff --git a/examples/objc/PrenotCalculator/main.m b/examples/objc/PrenotCalculator/main.m
deleted file mode 100644
index 9c7f114bdb..0000000000
--- a/examples/objc/PrenotCalculator/main.m
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2015 The Bazel Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <UIKit/UIKit.h>
-
-int main(int argc, char * argv[]) {
-  @autoreleasepool {
-    NSString *delegateClassName = @"AppDelegate";
-    return UIApplicationMain(argc, argv, nil, delegateClassName);
-  }
-}
diff --git a/examples/objc/README.md b/examples/objc/README.md
deleted file mode 100644
index a8769bf156..0000000000
--- a/examples/objc/README.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# Objective C Examples
-
-The example in this directory show typical use of Objective C libraries,
-binaries and imports. Because they build an iOS application they can only be run
-on Mac OSX.
-
-Build the top-level application with
-`bazel build examples/objc:PrenotCalculator`, which when finished prints the
-path to the generated .ipa. which you can then install to your test device. The
-same build will also print the path to an Xcode project directory which you can
-open to continue working with the application in Xcode.
-
-Running `bazel build examples/objc:PrenotCalculatorInstruments` will build and
-run the application to obtain a screenshot, the path to which it then prints.
-
-
diff --git a/examples/objc/expression_prebuilt.a b/examples/objc/expression_prebuilt.a
deleted file mode 100644
index f3bce54b0c..0000000000
--- a/examples/objc/expression_prebuilt.a
+++ /dev/null