Javier Cicchelli
9bcdaa697b
This PR contains all the work related to setting up this project as required to implement the [Assignment](https://repo.rock-n-code.com/rock-n-code/deep-linking-assignment/wiki/Assignment) on top, as intended. To summarise this work: - [x] created a new **Xcode** project; - [x] cloned the `Wikipedia` app and inserted it into the **Xcode** project; - [x] created the `Locations` app and also, its `Libraries` package; - [x] created the `Shared` package to share dependencies between the apps; - [x] added a `Makefile` file and implemented some **environment** and **help** commands. Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Reviewed-on: rock-n-code/deep-linking-assignment#1
151 lines
3.9 KiB
Objective-C
151 lines
3.9 KiB
Objective-C
//
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// MTLValueTransformer.m
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// Mantle
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//
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// Created by Justin Spahr-Summers on 2012-09-11.
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// Copyright (c) 2012 GitHub. All rights reserved.
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//
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#import "MTLValueTransformer.h"
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//
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// Any MTLValueTransformer supporting reverse transformation. Necessary because
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// +allowsReverseTransformation is a class method.
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//
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@interface MTLReversibleValueTransformer : MTLValueTransformer
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@end
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@interface MTLValueTransformer ()
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@property (nonatomic, copy, readonly) MTLValueTransformerBlock forwardBlock;
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@property (nonatomic, copy, readonly) MTLValueTransformerBlock reverseBlock;
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@end
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@implementation MTLValueTransformer
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#pragma mark Lifecycle
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+ (instancetype)transformerUsingForwardBlock:(MTLValueTransformerBlock)forwardBlock {
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return [[self alloc] initWithForwardBlock:forwardBlock reverseBlock:nil];
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}
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+ (instancetype)transformerUsingReversibleBlock:(MTLValueTransformerBlock)reversibleBlock {
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return [self transformerUsingForwardBlock:reversibleBlock reverseBlock:reversibleBlock];
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}
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+ (instancetype)transformerUsingForwardBlock:(MTLValueTransformerBlock)forwardBlock reverseBlock:(MTLValueTransformerBlock)reverseBlock {
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return [[MTLReversibleValueTransformer alloc] initWithForwardBlock:forwardBlock reverseBlock:reverseBlock];
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}
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- (id)initWithForwardBlock:(MTLValueTransformerBlock)forwardBlock reverseBlock:(MTLValueTransformerBlock)reverseBlock {
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NSParameterAssert(forwardBlock != nil);
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self = [super init];
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if (self == nil) return nil;
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_forwardBlock = [forwardBlock copy];
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_reverseBlock = [reverseBlock copy];
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return self;
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}
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#pragma mark NSValueTransformer
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+ (BOOL)allowsReverseTransformation {
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return NO;
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}
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+ (Class)transformedValueClass {
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return NSObject.class;
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}
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- (id)transformedValue:(id)value {
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NSError *error = nil;
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BOOL success = YES;
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return self.forwardBlock(value, &success, &error);
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}
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- (id)transformedValue:(id)value success:(BOOL *)outerSuccess error:(NSError **)outerError {
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NSError *error = nil;
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BOOL success = YES;
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id transformedValue = self.forwardBlock(value, &success, &error);
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if (outerSuccess != NULL) *outerSuccess = success;
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if (outerError != NULL) *outerError = error;
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return transformedValue;
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}
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@end
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@implementation MTLReversibleValueTransformer
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#pragma mark Lifecycle
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- (id)initWithForwardBlock:(MTLValueTransformerBlock)forwardBlock reverseBlock:(MTLValueTransformerBlock)reverseBlock {
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NSParameterAssert(reverseBlock != nil);
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return [super initWithForwardBlock:forwardBlock reverseBlock:reverseBlock];
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}
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#pragma mark NSValueTransformer
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+ (BOOL)allowsReverseTransformation {
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return YES;
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}
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- (id)reverseTransformedValue:(id)value {
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NSError *error = nil;
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BOOL success = YES;
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return self.reverseBlock(value, &success, &error);
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}
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- (id)reverseTransformedValue:(id)value success:(BOOL *)outerSuccess error:(NSError **)outerError {
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NSError *error = nil;
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BOOL success = YES;
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id transformedValue = self.reverseBlock(value, &success, &error);
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if (outerSuccess != NULL) *outerSuccess = success;
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if (outerError != NULL) *outerError = error;
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return transformedValue;
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}
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@end
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@implementation MTLValueTransformer (Deprecated)
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-implementations"
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+ (instancetype)transformerWithBlock:(id (^)(id))transformationBlock {
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return [self transformerUsingForwardBlock:^(id value, BOOL *success, NSError **error) {
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return transformationBlock(value);
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}];
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}
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+ (instancetype)reversibleTransformerWithBlock:(id (^)(id))transformationBlock {
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return [self transformerUsingReversibleBlock:^(id value, BOOL *success, NSError **error) {
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return transformationBlock(value);
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}];
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}
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+ (instancetype)reversibleTransformerWithForwardBlock:(id (^)(id))forwardBlock reverseBlock:(id (^)(id))reverseBlock {
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return [self
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transformerUsingForwardBlock:^(id value, BOOL *success, NSError **error) {
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return forwardBlock(value);
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}
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reverseBlock:^(id value, BOOL *success, NSError **error) {
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return reverseBlock(value);
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}];
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}
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#pragma clang diagnostic pop
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@end
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