Files
react-native/ReactCommon/react/renderer/core/PropsMacros.h
T
Ruslan ShestopalyukandFacebook GitHub Bot a142a78473 Fix regression when setting shadow node properties in D38272966 (github PR merge)
Summary:
Changelog:

[Android][Fixed] - Fix regression when setting shadow node properties.

Also simplified the corresponding macros to avoid using lambdas altogether, as they are not required.

Note that this **does not** modify any constexpr-related semantics of the existing code, as the main constexpr macro, `CONSTEXPR_RAW_PROPS_KEY_HASH` evaluation result is still contstexpr value, and the other ones already involved non-const parts (see my comments).

Reviewed By: NickGerleman

Differential Revision: D38356411

fbshipit-source-id: 22c330d3425c8aed36693f4652f1b257d2dc96be
2022-08-02 15:14:16 -07:00

93 lines
4.7 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <react/renderer/core/RawPropsPrimitives.h>
// We need to use clang pragmas inside of a macro below,
// so we need to pull out the "if" statement here.
#if __clang__
#define CLANG_PRAGMA(s) _Pragma(s)
#else
#define CLANG_PRAGMA(s)
#endif
// Get hash at compile-time. sizeof(str) - 1 == strlen
#define CONSTEXPR_RAW_PROPS_KEY_HASH(s) \
([]() constexpr->RawPropsPropNameHash { \
CLANG_PRAGMA("clang diagnostic push") \
CLANG_PRAGMA("clang diagnostic ignored \"-Wshadow\"") \
return folly::hash::fnv32_buf(s, sizeof(s) - 1); \
CLANG_PRAGMA("clang diagnostic pop") \
}())
#define RAW_PROPS_KEY_HASH(s) folly::hash::fnv32_buf(s, std::strlen(s))
// Convenience for building setProps switch statements.
// This injects `fromRawValue` into source; each file that uses
// this macro must import the proper, respective headers required.
#define RAW_SET_PROP_SWITCH_CASE(field, jsPropName, defaultValue) \
case CONSTEXPR_RAW_PROPS_KEY_HASH(jsPropName): \
fromRawValue(context, value, field, defaultValue); \
return;
// Convenience for building setProps switch statements where the field name is
// the same as the string identifier
#define RAW_SET_PROP_SWITCH_CASE_BASIC(field, defaultValue) \
RAW_SET_PROP_SWITCH_CASE(field, #field, defaultValue)
#define CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, field, fieldNameString, value) \
case CONSTEXPR_RAW_PROPS_KEY_HASH(fieldNameString): { \
if (!value.hasValue()) { \
decltype(struct) defaultValues{}; \
struct.field = defaultValues.field; \
return; \
} \
fromRawValue(context, value, struct.field); \
return; \
}
#define SET_CASCADED_RECTANGLE_CORNERS(struct, prefix, suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, topLeft, prefix "TopLeft" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, topRight, prefix "TopRight" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, bottomLeft, prefix "BottomLeft" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, bottomRight, prefix "BottomRight" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, topStart, prefix "TopStart" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, topEnd, prefix "TopEnd" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, bottomStart, prefix "BottomStart" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, bottomEnd, prefix "BottomEnd" suffix, rawValue)
#define SET_CASCADED_RECTANGLE_EDGES(struct, prefix, suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, left, prefix "Left" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, right, prefix "Right" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, top, prefix "Top" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, bottom, prefix "Bottom" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, start, prefix "Start" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, end, prefix "End" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, horizontal, prefix "Horizontal" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, vertical, prefix "Vertical" suffix, rawValue) \
CASE_STATEMENT_SET_FIELD_VALUE_INDEXED( \
struct, all, prefix "" suffix, rawValue)