Summary:
changelog: [internal]
You can read more about this rule on https://clang.llvm.org/extra/clang-tidy/checks/modernize-pass-by-value.html
# Isn't it wasteful to copy? Isn't reference more efficient?
This rule of thumb is no longer true since C++11 with move semantics. Let's look at some examples.
# Option one
```
class TextHolder
{
public:
TextBox(std::string const &text) : text_(text) {}
private:
std::string text_;
};
```
By using reference here, we prevent the caller from using rvalue to and avoiding copy. Regardless of what the caller passes in, copy always happens.
# Option two
```
class TextHolder
{
public:
TextBox(std::string const &text) : text_(text) {}
TextBox(std::string &&text) : text_(std::move(text)) {}
private:
std::string text_;
};
```
Here, we provide two constructors, one for const reference and one for rvalue reference. This gives the caller option to avoid copy. But now we have two constructors, which is not ideal.
# Option three (what we do in this diff)
```
class TextHolder
{
public:
TextBox(std::string text) : text_(std::move(text)) {}
private:
std::string text_;
};
```
Here, the caller has option to avoid copy and we only have single constructor.
Reviewed By: fkgozali, JoshuaGross
Differential Revision: D33276841
fbshipit-source-id: 619d5123d2e28937b22874650366629f24f20a63
Summary:
Changelog: [Internal]
General improvements. Behaviour should be exactly the same.
Reviewed By: JoshuaGross
Differential Revision: D25092505
fbshipit-source-id: 584640ece3e02d468f6bcb84577d7a6c899cc253
Summary:
Remove the older implementation of image instrumentation in Fabric by removing, RCTImageInstrumentationProxy, ImageInstrumentation from ImageRequest, and trackURLImageContentDidSetForRequest from RCTImageLoaderWithAttributionProtocol.
Changelog: [RN][Fabric][Image] Remove unused Fabric image instrumentation
Reviewed By: fkgozali
Differential Revision: D23990606
fbshipit-source-id: 004d04025d031af11377a73e5bfb64b1e0449962
Summary:
* Create `ImageTelemetry` as a property of ImageRequest to pass image metadata from the ImageShadowNode into RCTImageComponentView
* ImageRequest is a object in the ImageShadowNode::ConcreteState
Reviewed By: fkgozali
Differential Revision: D23239664
fbshipit-source-id: db0f08bb889af8ce63fbe1abe88744edddb86150
Summary:
This diff moves fabric C++ code from ReactCommon/fabric to ReactCommon/react/renderer
As part of this diff I also refactored components, codegen and callsites on CatalystApp, FB4A and venice
Script: P137350694
changelog: [internal] internal refactor
Reviewed By: fkgozali
Differential Revision: D22852139
fbshipit-source-id: f85310ba858b6afd81abfd9cbe6d70b28eca7415
Andres Suarez
Samuel Susla
Paige Sun
David Vacca