react-native/ReactCommon/fabric/text/basetext/BaseTextShadowNode.cpp
Valentin Shergin dd3a6eda70 Fabric: Devirtualizing of props parsing infra
Summary:
This diff contains several tight to each other changes (which can/should not be split into several diffs):
 * The props parsing/conversion process was de-virtualized: we don't use virtual `apply` method to parse props anymore. Instead, we use old-fashioned constructors.
 * All fields of Props classes which represent props values were marked as `const` which make impossible to modify them after the objects were created (even if we have non-const value-of/pointer-to the whole Props object). Those fields are also `public` now.
 * All custom handwritten getters were removed (because we don't need them anymore).

So, now we don't need all those custom getters which makes code much more compact, performant and codegen-friendly.

Reviewed By: fkgozali

Differential Revision: D7901245

fbshipit-source-id: 9f4b1fd2da64bf963b63215ed3bd74b9d3c58dd5
2018-05-14 16:03:49 -07:00

60 lines
1.8 KiB
C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "BaseTextShadowNode.h"
#include <fabric/debug/DebugStringConvertibleItem.h>
#include "RawTextShadowNode.h"
#include "RawTextProps.h"
#include "TextShadowNode.h"
#include "TextProps.h"
namespace facebook {
namespace react {
AttributedString BaseTextShadowNode::getAttributedString(
const TextAttributes &textAttributes,
const SharedShadowNodeSharedList &childNodes
) const {
// TODO: Implement caching.
AttributedString attributedString;
for (auto &&childNode : *childNodes) {
// RawShadowNode
SharedRawTextShadowNode rawTextShadowNode = std::dynamic_pointer_cast<const RawTextShadowNode>(childNode);
if (rawTextShadowNode) {
AttributedString::Fragment fragment;
fragment.string = rawTextShadowNode->getProps()->text;
fragment.textAttributes = textAttributes;
attributedString.appendFragment(fragment);
continue;
}
// TextShadowNode
SharedTextShadowNode textShadowNode = std::dynamic_pointer_cast<const TextShadowNode>(childNode);
if (textShadowNode) {
TextAttributes localTextAttributes = textAttributes;
localTextAttributes.apply(textShadowNode->getProps()->textAttributes);
attributedString.appendAttributedString(textShadowNode->getAttributedString(localTextAttributes, textShadowNode->getChildren()));
continue;
}
// Any other kind of ShadowNode
AttributedString::Fragment fragment;
fragment.shadowNode = childNode;
fragment.textAttributes = textAttributes;
attributedString.appendFragment(fragment);
}
return attributedString;
}
} // namespace react
} // namespace facebook