95 lines
3.0 KiB
CMake
95 lines
3.0 KiB
CMake
# ##############################################################################
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# cmake/nuttx_parse_function_args.cmake
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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# =============================================================================
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#
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# Defined functions in this file
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#
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# utility functions
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#
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# * nuttx_parse_function_args
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#
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include(CMakeParseArguments)
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# ~~~
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# nuttx_parse_function_args
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#
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# This function simplifies usage of the cmake_parse_arguments module. It is
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# intended to be called by other functions.
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#
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# Usage:
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# nuttx_parse_function_args( FUNC <name> [ OPTIONS <list> ]
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# [ ONE_VALUE <list> ] [ MULTI_VALUE <list> ] REQUIRED <list> ARGN <ARGN>)
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#
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# Input:
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# FUNC : the name of the calling function
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# OPTIONS : boolean flags
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# ONE_VALUE : single value variables
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# MULTI_VALUE : multi value variables
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# REQUIRED : required arguments
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# ARGN : the function input arguments, typically ${ARGN}
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#
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# Output:
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# The function arguments corresponding to the following are set:
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# ${OPTIONS}, ${ONE_VALUE}, ${MULTI_VALUE}
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#
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# Example:
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# function test()
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# nuttx_parse_function_args(FUNC TEST ONE_VALUE NAME MULTI_VALUE
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# LIST REQUIRED NAME LIST ARGN ${ARGN})
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# message(STATUS "name: ${NAME}")
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# message(STATUS "list: ${LIST}")
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# endfunction()
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#
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# test(NAME "hello" LIST a b c)
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#
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# OUTPUT: name: hello list: a b c
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# ~~~
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function(nuttx_parse_function_args)
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cmake_parse_arguments(IN "" "FUNC"
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"OPTIONS;ONE_VALUE;MULTI_VALUE;REQUIRED;ARGN" "${ARGN}")
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cmake_parse_arguments(OUT "${IN_OPTIONS}" "${IN_ONE_VALUE}"
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"${IN_MULTI_VALUE}" "${IN_ARGN}")
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if(OUT_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "${IN_NAME}: unparsed ${OUT_UNPARSED_ARGUMENTS}")
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endif()
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foreach(arg ${IN_REQUIRED})
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if(NOT OUT_${arg})
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if(NOT "${OUT_${arg}}" STREQUAL "0")
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message(
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FATAL_ERROR "${IN_NAME} requires argument ${arg}\nARGN: ${IN_ARGN}")
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endif()
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endif()
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endforeach()
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foreach(arg ${IN_OPTIONS} ${IN_ONE_VALUE} ${IN_MULTI_VALUE})
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set(${arg}
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${OUT_${arg}}
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PARENT_SCOPE)
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endforeach()
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endfunction()
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