bitcoin/cmake/script/GenerateHeaderFromRaw.cmake
MarcoFalke faecca9a85
test: Use span for raw data
This change allows to drop brittle sizeof calls in favor of the
std::span::size method.

Other improvements include:

* Use of a namespace to mark test and bench data
* Use of the modern std::byte
* Drop of a no longer used std::vector copy and the bench/data module
2024-09-05 10:57:19 +02:00

27 lines
1.1 KiB
CMake

# Copyright (c) 2023-present The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or https://opensource.org/license/mit/.
file(READ ${RAW_SOURCE_PATH} hex_content HEX)
string(REGEX MATCHALL "([A-Za-z0-9][A-Za-z0-9])" bytes "${hex_content}")
file(WRITE ${HEADER_PATH} "#include <cstddef>\n")
file(APPEND ${HEADER_PATH} "#include <span>\n")
file(APPEND ${HEADER_PATH} "namespace ${RAW_NAMESPACE} {\n")
get_filename_component(raw_source_basename ${RAW_SOURCE_PATH} NAME_WE)
file(APPEND ${HEADER_PATH} "inline constexpr std::byte detail_${raw_source_basename}_raw[]{\n")
set(i 0)
foreach(byte ${bytes})
math(EXPR i "${i} + 1")
math(EXPR remainder "${i} % 8")
if(remainder EQUAL 0)
file(APPEND ${HEADER_PATH} "std::byte{0x${byte}},\n")
else()
file(APPEND ${HEADER_PATH} "std::byte{0x${byte}}, ")
endif()
endforeach()
file(APPEND ${HEADER_PATH} "\n};\n")
file(APPEND ${HEADER_PATH} "inline constexpr std::span ${raw_source_basename}{detail_${raw_source_basename}_raw};\n")
file(APPEND ${HEADER_PATH} "}")