mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ramanpreet Nara
c29ec64d94
Summary:
There are two implementations of `RCTConvertVecToArray`. The first implementation:
```
template<typename ContainerT>
NSArray *RCTConvertVecToArray(const ContainerT &vec, id (^convertor)(typename ContainerT::value_type element))
{
NSMutableArray *array = [NSMutableArray new];
for (size_t i = 0, size = vec.size(); i < size; ++i) {
id object = convertor(vec[i]);
array[i] = object ?: (id)kCFNull;
}
return array;
}
```
The purpose of the second implementation is to default the convertor function to the identify function:
```
template<typename ContainerT>
NSArray *RCTConvertVecToArray(const ContainerT &vec)
{
return RCTConvertVecToArray(vec, ^id(typename ContainerT::value_type element) { return element; });
}
```
Meanwhile, there's only one implementation of `RCTConvertOptionalVecToArray`:
```
template<typename ContainerT>
NSArray *RCTConvertOptionalVecToArray(const folly::Optional<ContainerT> &vec, id (^convertor)(typename ContainerT::value_type element))
{
return vec.hasValue() ? RCTConvertVecToArray(vec.value(), convertor) : nil;
}
```
In this diff, I overload `RCTConvertOptionalVecToArray` to default the convertor to the identify function.
Changelog:
[iOS][Added] - Added RCTConvertOptionalVecToArray with default converter
Reviewed By: PeteTheHeat
Differential Revision: D18148891
fbshipit-source-id: d7d5f05cda06c9fa5374334ec4e9dbbd8b6d2eba
74 lines
2.3 KiB
Objective-C
74 lines
2.3 KiB
Objective-C
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <vector>
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#import <Foundation/Foundation.h>
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#import <FBLazyVector/FBLazyVector.h>
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#import <folly/Optional.h>
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namespace facebook {
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namespace react {
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template<typename T>
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using LazyVector = FB::LazyVector<T, id>;
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}}
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template<typename ContainerT>
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NSArray *RCTConvertVecToArray(const ContainerT &vec, id (^convertor)(typename ContainerT::value_type element))
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{
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NSMutableArray *array = [NSMutableArray new];
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for (size_t i = 0, size = vec.size(); i < size; ++i) {
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id object = convertor(vec[i]);
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array[i] = object ?: (id)kCFNull;
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}
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return array;
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}
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template<typename ContainerT>
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NSArray *RCTConvertVecToArray(const ContainerT &vec)
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{
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return RCTConvertVecToArray(vec, ^id(typename ContainerT::value_type element) { return element; });
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}
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template<typename ContainerT>
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NSArray *RCTConvertOptionalVecToArray(const folly::Optional<ContainerT> &vec, id (^convertor)(typename ContainerT::value_type element))
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{
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return vec.hasValue() ? RCTConvertVecToArray(vec.value(), convertor) : nil;
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}
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template<typename ContainerT>
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NSArray *RCTConvertOptionalVecToArray(const folly::Optional<ContainerT> &vec)
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{
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return vec.hasValue() ? RCTConvertVecToArray(vec.value(), ^id(typename ContainerT::value_type element) { return element; }) : nil;
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}
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bool RCTBridgingToBool(id value);
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folly::Optional<bool> RCTBridgingToOptionalBool(id value);
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NSString *RCTBridgingToString(id value);
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folly::Optional<double> RCTBridgingToOptionalDouble(id value);
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double RCTBridgingToDouble(id value);
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NSArray *RCTBridgingToArray(id value);
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template<typename T>
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facebook::react::LazyVector<T> RCTBridgingToVec(id value, T (^ctor)(id element))
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{
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NSArray *array = RCTBridgingToArray(value);
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typedef typename facebook::react::LazyVector<T>::size_type _size_t;
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_size_t size = static_cast<_size_t>(array.count);
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return facebook::react::LazyVector<T>::fromUnsafeRawValue(array, size, ctor);
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}
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template<typename T>
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folly::Optional<facebook::react::LazyVector<T>> RCTBridgingToOptionalVec(id value, T (^ctor)(id element))
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{
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if (value == nil || value == (id)kCFNull) {
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return folly::none;
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} else {
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return RCTBridgingToVec(value, ctor);
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}
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}
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