tvl-depot/CMake/AbseilHelpers.cmake
Abseil Team ae0cef35ae Changes imported from Abseil "staging" branch:
- 55c7dd8ad1570b4e6ce2103ed4d4b6becdea0d96 Remove line continuations which require CMake >= 3.0.  Al... by Jon Cohen <cohenjon@google.com>
  - ee66ad72a90259d6286bbfea7241ed976bb0f6fb Change absl::ParseDuration() to avoid double.  This allow... by Abseil Team <absl-team@google.com>
  - 89cf4cd49d8ff25cb3d29f06b2090029a2024e89 Internal change by Gennadiy Rozental <rogeeff@google.com>
  - cdb5879bf6aaf6bbd2ad1fe4a2b144bbdf0389c7 Internal change by Gennadiy Rozental <rogeeff@google.com>
  - e7b29d11bf24a63bf7637689ada8be7d619844fc Internal change by Gennadiy Rozental <rogeeff@google.com>
  - 2d4fc08d5d64a7760ad6230eccdb5b8014c2b0c3 Update the exception-safety testing framework. by Jon Cohen <cohenjon@google.com>

GitOrigin-RevId: 55c7dd8ad1570b4e6ce2103ed4d4b6becdea0d96
Change-Id: I6b560cbc4570dfc5aa9a2f90e84d69904df7eac5
2017-11-22 15:25:43 -05:00

157 lines
4.4 KiB
CMake

#
# Copyright 2017 The Abseil Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
include(CMakeParseArguments)
#
# create a library in the absl namespace
#
# parameters
# SOURCES : sources files for the library
# PUBLIC_LIBRARIES: targets and flags for linking phase
# PRIVATE_COMPILE_FLAGS: compile flags for the library. Will not be exported.
# EXPORT_NAME: export name for the absl:: target export
# TARGET: target name
#
# create a target associated to <NAME>
# libraries are installed under CMAKE_INSTALL_FULL_LIBDIR by default
#
function(absl_library)
cmake_parse_arguments(ABSL_LIB
"DISABLE_INSTALL" # keep that in case we want to support installation one day
"TARGET;EXPORT_NAME"
"SOURCES;PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS;PUBLIC_INCLUDE_DIRS;PRIVATE_INCLUDE_DIRS"
${ARGN}
)
set(_NAME ${ABSL_LIB_TARGET})
string(TOUPPER ${_NAME} _UPPER_NAME)
add_library(${_NAME} STATIC ${ABSL_LIB_SOURCES})
target_compile_options(${_NAME} PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_LIB_PRIVATE_COMPILE_FLAGS})
target_link_libraries(${_NAME} PUBLIC ${ABSL_LIB_PUBLIC_LIBRARIES})
target_include_directories(${_NAME}
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_LIB_PUBLIC_INCLUDE_DIRS}
PRIVATE ${ABSL_LIB_PRIVATE_INCLUDE_DIRS}
)
if(ABSL_LIB_EXPORT_NAME)
add_library(absl::${ABSL_LIB_EXPORT_NAME} ALIAS ${_NAME})
endif()
endfunction()
#
# header only virtual target creation
#
function(absl_header_library)
cmake_parse_arguments(ABSL_HO_LIB
"DISABLE_INSTALL"
"EXPORT_NAME;TARGET"
"PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS;PUBLIC_INCLUDE_DIRS;PRIVATE_INCLUDE_DIRS"
${ARGN}
)
set(_NAME ${ABSL_HO_LIB_TARGET})
set(__dummy_header_only_lib_file "${CMAKE_CURRENT_BINARY_DIR}/${_NAME}_header_only_dummy.cc")
if(NOT EXISTS ${__dummy_header_only_lib_file})
file(WRITE ${__dummy_header_only_lib_file}
"/* generated file for header-only cmake target */
namespace absl {
// single meaningless symbol
void ${_NAME}__header_fakesym() {}
} // namespace absl
"
)
endif()
add_library(${_NAME} ${__dummy_header_only_lib_file})
target_link_libraries(${_NAME} PUBLIC ${ABSL_HO_LIB_PUBLIC_LIBRARIES})
target_include_directories(${_NAME}
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_HO_LIB_PUBLIC_INCLUDE_DIRS}
PRIVATE ${ABSL_HO_LIB_PRIVATE_INCLUDE_DIRS}
)
if(ABSL_HO_LIB_EXPORT_NAME)
add_library(absl::${ABSL_HO_LIB_EXPORT_NAME} ALIAS ${_NAME})
endif()
endfunction()
#
# create an abseil unit_test and add it to the executed test list
#
# parameters
# TARGET: target name prefix
# SOURCES: sources files for the tests
# PUBLIC_LIBRARIES: targets and flags for linking phase.
# PRIVATE_COMPILE_FLAGS: compile flags for the test. Will not be exported.
#
# create a target associated to <NAME>_bin
#
# all tests will be register for execution with add_test()
#
# test compilation and execution is disable when BUILD_TESTING=OFF
#
function(absl_test)
cmake_parse_arguments(ABSL_TEST
""
"TARGET"
"SOURCES;PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS;PUBLIC_INCLUDE_DIRS"
${ARGN}
)
if(BUILD_TESTING)
set(_NAME ${ABSL_TEST_TARGET})
string(TOUPPER ${_NAME} _UPPER_NAME)
add_executable(${_NAME}_bin ${ABSL_TEST_SOURCES})
target_compile_options(${_NAME}_bin PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_TEST_PRIVATE_COMPILE_FLAGS})
target_link_libraries(${_NAME}_bin PUBLIC ${ABSL_TEST_PUBLIC_LIBRARIES} ${ABSL_TEST_COMMON_LIBRARIES})
target_include_directories(${_NAME}_bin
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_TEST_PUBLIC_INCLUDE_DIRS}
PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
)
add_test(${_NAME}_test ${_NAME}_bin)
endif(BUILD_TESTING)
endfunction()
function(check_target my_target)
if(NOT TARGET ${my_target})
message(FATAL_ERROR " ABSL: compiling absl requires a ${my_target} CMake target in your project,
see CMake/README.md for more details")
endif(NOT TARGET ${my_target})
endfunction()