Swiftgram/Source/Private/ASRectMap.mm
Michael Schneider 55abeed743
Introduce let / var macros and some further cleanup (#1012)
* Introduce let / var and some further cleanup

* Address first comments

* Update changelog

* Move the const before auto
2018-07-10 09:37:53 -07:00

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//
// ASRectMap.mm
// Texture
//
// Copyright (c) 2017-present, Pinterest, Inc. 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
//
#import "ASRectMap.h"
#import "ASObjectDescriptionHelpers.h"
#import <UIKit/UIGeometry.h>
#import <unordered_map>
@implementation ASRectMap {
std::unordered_map<void *, CGRect> _map;
}
+ (ASRectMap *)rectMapForWeakObjectPointers NS_RETURNS_RETAINED
{
return [[self alloc] init];
}
- (CGRect)rectForKey:(id)key
{
let result = _map.find((__bridge void *)key);
if (result != _map.end()) {
// result->first is the key; result->second is the value, a CGRect.
return result->second;
} else {
return CGRectNull;
}
}
- (void)setRect:(CGRect)rect forKey:(id)key
{
if (key) {
_map[(__bridge void *)key] = rect;
}
}
- (void)removeRectForKey:(id)key
{
if (key) {
_map.erase((__bridge void *)key);
}
}
- (id)copyWithZone:(NSZone *)zone
{
ASRectMap *copy = [ASRectMap rectMapForWeakObjectPointers];
copy->_map = _map;
return copy;
}
- (NSMutableArray<NSDictionary *> *)propertiesForDescription
{
NSMutableArray *result = [NSMutableArray array];
// { ptr1->rect1 ptr2->rect2 ptr3->rect3 }
NSMutableString *str = [NSMutableString string];
for (let &e : _map) {
[str appendFormat:@" %@->%@", e.first, NSStringFromCGRect(e.second)];
}
[result addObject:@{ @"ASRectMap": str }];
return result;
}
- (NSString *)description
{
return ASObjectDescriptionMakeWithoutObject([self propertiesForDescription]);
}
@end