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Genex: CompileLang and CompileLangAndId now match against a list of ids

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This allows for expressions such as:

 $<COMPILE_LANG_AND_ID, CXX, GNU, Clang>
This commit is contained in:
Robert Maynard
2019-05-30 10:00:19 -04:00
committed by Brad King
parent 9fd602bfd3
commit 808b818063
9 changed files with 47 additions and 20 deletions
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24
Help/manual/cmake-generator-expressions.7.rst
View File

@@ -164,20 +164,20 @@ Variable Queries
.. _`Boolean COMPILE_LANGUAGE Generator Expression`:
``$<COMPILE_LANG_AND_ID:language,compiler_id>``
``$<COMPILE_LANG_AND_ID:language,compiler_ids>``
``1`` when the language used for compilation unit matches ``language`` and
the CMake's compiler id of the language compiler matches ``compiler_id``,
otherwise ``0``. This expression is a short form for the combination of
``$<COMPILE_LANGUAGE:language>`` and ``$<LANG_COMPILER_ID:compiler_id>``.
This expression may be used to specify compile options,
compile definitions, and include directories for source files of a
the CMake's compiler id of the language compiler matches any one of the
entries in ``compiler_ids``, otherwise ``0``. This expression is a short form
for the combination of ``$<COMPILE_LANGUAGE:language>`` and
``$<LANG_COMPILER_ID:compiler_ids>``. This expression may be used to specify
compile options, compile definitions, and include directories for source files of a
particular language and compiler combination in a target. For example:
.. code-block:: cmake
add_executable(myapp main.cpp foo.c bar.cpp zot.cu)
target_compile_definitions(myapp
PRIVATE $<$<COMPILE_LANG_AND_ID:CXX,Clang>:COMPILING_CXX_WITH_CLANG>
PRIVATE $<$<COMPILE_LANG_AND_ID:CXX,AppleClang,Clang>:COMPILING_CXX_WITH_CLANG>
$<$<COMPILE_LANG_AND_ID:CXX,Intel>:COMPILING_CXX_WITH_INTEL>
$<$<COMPILE_LANG_AND_ID:C,Clang>:COMPILING_C_WITH_CLANG>
)
@@ -200,10 +200,10 @@ Variable Queries
$<$<AND:$<COMPILE_LANGUAGE:C>,$<C_COMPILER_ID:Clang>>:COMPILING_C_WITH_CLANG>
)
``$<COMPILE_LANGUAGE:language>``
``1`` when the language used for compilation unit matches ``language``,
otherwise ``0``. This expression may be used to specify compile options,
compile definitions, and include directories for source files of a
``$<COMPILE_LANGUAGE:languages>``
``1`` when the language used for compilation unit matches any of the entries
in ``languages``, otherwise ``0``. This expression may be used to specify
compile options, compile definitions, and include directories for source files of a
particular language in a target. For example:
.. code-block:: cmake
@@ -217,7 +217,7 @@ Variable Queries
$<$<COMPILE_LANGUAGE:CUDA>:COMPILING_CUDA>
)
target_include_directories(myapp
PRIVATE $<$<COMPILE_LANGUAGE:CXX>:/opt/foo/cxx_headers>
PRIVATE $<$<COMPILE_LANGUAGE:CXX,CUDA>:/opt/foo/headers>
)
This specifies the use of the ``-fno-exceptions`` compile option,

15
Source/cmGeneratorExpressionNode.cxx
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@@ -951,7 +951,7 @@ static const struct CompileLanguageNode : public cmGeneratorExpressionNode
{
CompileLanguageNode() {} // NOLINT(modernize-use-equals-default)
int NumExpectedParameters() const override { return OneOrZeroParameters; }
int NumExpectedParameters() const override { return ZeroOrMoreParameters; }
std::string Evaluate(
const std::vector<std::string>& parameters,
@@ -982,7 +982,13 @@ static const struct CompileLanguageNode : public cmGeneratorExpressionNode
if (parameters.empty()) {
return context->Language;
}
return context->Language == parameters.front() ? "1" : "0";
for (auto& param : parameters) {
if (context->Language == param) {
return "1";
}
}
return "0";
}
} languageNode;
@@ -990,7 +996,7 @@ static const struct CompileLanguageAndIdNode : public cmGeneratorExpressionNode
{
CompileLanguageAndIdNode() {} // NOLINT(modernize-use-equals-default)
int NumExpectedParameters() const override { return 2; }
int NumExpectedParameters() const override { return TwoOrMoreParameters; }
std::string Evaluate(
const std::vector<std::string>& parameters,
@@ -1023,7 +1029,8 @@ static const struct CompileLanguageAndIdNode : public cmGeneratorExpressionNode
const std::string& lang = context->Language;
if (lang == parameters.front()) {
std::vector<std::string> idParameter = { parameters[1] };
std::vector<std::string> idParameter((parameters.cbegin() + 1),
parameters.cend());
return CompilerIdNode{ lang.c_str() }.EvaluateWithLanguage(
idParameter, context, content, dagChecker, lang);
}

1
Tests/CMakeCommands/target_compile_definitions/CMakeLists.txt
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@@ -34,6 +34,7 @@ target_compile_definitions(consumer
CONSUMER_LANG_$<COMPILE_LANGUAGE>
LANG_IS_CXX=$<COMPILE_LANGUAGE:CXX>
LANG_IS_C=$<COMPILE_LANGUAGE:C>
LANG_IS_C_OR_CXX=$<COMPILE_LANGUAGE:C,CXX>
)
if(CMAKE_GENERATOR MATCHES "Visual Studio|Xcode")
target_compile_definitions(consumer

4
Tests/CMakeCommands/target_compile_definitions/consumer.c
View File

@@ -35,6 +35,10 @@
# endif
#endif
#if !LANG_IS_C_OR_CXX
# error Expected LANG_IS_C_OR_CXX
#endif
void consumer_c()
{
}

1
Tests/CMakeCommands/target_compile_options/CMakeLists.txt
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@@ -9,6 +9,7 @@ add_executable(target_compile_options
target_compile_options(target_compile_options
PRIVATE $<$<CXX_COMPILER_ID:AppleClang,Clang,GNU>:-DMY_PRIVATE_DEFINE>
PUBLIC $<$<COMPILE_LANG_AND_ID:CXX,GNU>:-DMY_PUBLIC_DEFINE>
PUBLIC $<$<COMPILE_LANG_AND_ID:CXX,GNU,Clang,AppleClang>:-DMY_MUTLI_COMP_PUBLIC_DEFINE>
INTERFACE $<$<CXX_COMPILER_ID:GNU>:-DMY_INTERFACE_DEFINE>
INTERFACE $<$<CXX_COMPILER_ID:GNU,Clang,AppleClang>:-DMY_MULTI_COMP_INTERFACE_DEFINE>
)

8
Tests/CMakeCommands/target_compile_options/consumer.cpp
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@@ -17,6 +17,10 @@
# error Expected MY_MULTI_COMP_INTERFACE_DEFINE
# endif
# ifndef MY_MUTLI_COMP_PUBLIC_DEFINE
# error Expected MY_MUTLI_COMP_PUBLIC_DEFINE
# endif
#endif
#ifdef DO_CLANG_TESTS
@@ -29,6 +33,10 @@
# error Expected MY_MULTI_COMP_INTERFACE_DEFINE
# endif
# ifndef MY_MUTLI_COMP_PUBLIC_DEFINE
# error Expected MY_MUTLI_COMP_PUBLIC_DEFINE
# endif
#endif
#ifndef CONSUMER_LANG_CXX

8
Tests/CMakeCommands/target_compile_options/main.cpp
View File

@@ -9,6 +9,10 @@
# error Expected MY_PUBLIC_DEFINE
# endif
# ifndef MY_MUTLI_COMP_PUBLIC_DEFINE
# error Expected MY_MUTLI_COMP_PUBLIC_DEFINE
# endif
# ifdef MY_INTERFACE_DEFINE
# error Unexpected MY_INTERFACE_DEFINE
# endif
@@ -25,6 +29,10 @@
# error Unexpected MY_PUBLIC_DEFINE
# endif
# ifndef MY_MUTLI_COMP_PUBLIC_DEFINE
# error Expected MY_MUTLI_COMP_PUBLIC_DEFINE
# endif
#endif
int main()

3
Tests/RunCMake/GeneratorExpression/COMPILE_LANG_AND_ID-add_custom_command-stderr.txt
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@@ -3,7 +3,6 @@ CMake Error at COMPILE_LANG_AND_ID-add_custom_command.cmake:2 \(add_custom_comma
\$<COMPILE_LANG_AND_ID>
\$<COMPILE_LANG_AND_ID> expression requires 2 comma separated parameters,
but got 0 instead.
\$<COMPILE_LANG_AND_ID> expression requires at least two parameters.
Call Stack \(most recent call first\):
CMakeLists.txt:3 \(include\)

3
Tests/RunCMake/GeneratorExpression/COMPILE_LANG_AND_ID-target_sources-stderr.txt
View File

@@ -3,7 +3,6 @@ CMake Error at COMPILE_LANG_AND_ID-target_sources.cmake:2 \(target_sources\):
\$<COMPILE_LANG_AND_ID>
\$<COMPILE_LANG_AND_ID> expression requires 2 comma separated parameters,
but got 0 instead.
\$<COMPILE_LANG_AND_ID> expression requires at least two parameters.
Call Stack \(most recent call first\):
CMakeLists.txt:3 \(include\)