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Add <LANG>_COMPILER_ID generator expressions.

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These expressions evaluate to the id of the compiler used to build
the target, or can be used to test if the compiler id matches a
specified value.
This commit is contained in:
Stephen Kelly 2013-05-28 12:17:25 +02:00
parent 35496761a5
commit 1319a147bd
2 changed files with 110 additions and 0 deletions
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8
Source/cmDocumentGeneratorExpressions.h
View File

@ -40,6 +40,14 @@
"is exported using export(), or when the target is used by another " \
"target in the same buildsystem. Expands to the empty string " \
"otherwise.\n" \
" $<C_COMPILER_ID> = The CMake-id of the C compiler " \
"used.\n" \
" $<C_COMPILER_ID:comp> = '1' if the CMake-id of the C " \
"compiler matches comp, otherwise '0'.\n" \
" $<CXX_COMPILER_ID> = The CMake-id of the CXX compiler " \
"used.\n" \
" $<CXX_COMPILER_ID:comp> = '1' if the CMake-id of the CXX " \
"compiler matches comp, otherwise '0'.\n" \
" $<TARGET_FILE:tgt> = main file (.exe, .so.1.2, .a)\n" \
" $<TARGET_LINKER_FILE:tgt> = file used to link (.a, .lib, .so)\n" \
" $<TARGET_SONAME_FILE:tgt> = file with soname (.so.3)\n" \

102
Source/cmGeneratorExpressionEvaluator.cxx
View File

@ -246,6 +246,104 @@ static const struct SemicolonNode : public cmGeneratorExpressionNode
}
} semicolonNode;
//----------------------------------------------------------------------------
struct CompilerIdNode : public cmGeneratorExpressionNode
{
CompilerIdNode() {}
virtual int NumExpectedParameters() const { return ZeroOrMoreParameters; }
std::string EvaluateWithLanguage(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *,
const std::string &lang) const
{
const char *compilerId = context->Makefile ?
context->Makefile->GetSafeDefinition((
"CMAKE_" + lang + "_COMPILER_ID").c_str()) : "";
if (parameters.size() == 0)
{
return compilerId ? compilerId : "";
}
else
{
cmsys::RegularExpression compilerIdValidator;
compilerIdValidator.compile("^[A-Za-z0-9_]*$");
if (!compilerIdValidator.find(parameters.begin()->c_str()))
{
reportError(context, content->GetOriginalExpression(),
"Expression syntax not recognized.");
return std::string();
}
if (!compilerId)
{
return parameters.front().empty() ? "1" : "0";
}
if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0)
{
return "1";
}
return "0";
}
}
};
//----------------------------------------------------------------------------
static const struct CCompilerIdNode : public CompilerIdNode
{
CCompilerIdNode() {}
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagChecker) const
{
if (parameters.size() != 0 && parameters.size() != 1)
{
reportError(context, content->GetOriginalExpression(),
"$<C_COMPILER_ID> expression requires one or two parameters");
return std::string();
}
if (!context->HeadTarget)
{
reportError(context, content->GetOriginalExpression(),
"$<C_COMPILER_ID> may only be used with targets. It may not "
"be used with add_custom_command.");
}
return this->EvaluateWithLanguage(parameters, context, content,
dagChecker, "C");
}
} cCompilerIdNode;
//----------------------------------------------------------------------------
static const struct CXXCompilerIdNode : public CompilerIdNode
{
CXXCompilerIdNode() {}
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagChecker) const
{
if (parameters.size() != 0 && parameters.size() != 1)
{
reportError(context, content->GetOriginalExpression(),
"$<CXX_COMPILER_ID> expression requires one or two parameters");
return std::string();
}
if (!context->HeadTarget)
{
reportError(context, content->GetOriginalExpression(),
"$<CXX_COMPILER_ID> may only be used with targets. It may not "
"be used with add_custom_command.");
}
return this->EvaluateWithLanguage(parameters, context, content,
dagChecker, "CXX");
}
} cxxCompilerIdNode;
//----------------------------------------------------------------------------
static const struct ConfigurationNode : public cmGeneratorExpressionNode
{
@ -1055,6 +1153,10 @@ cmGeneratorExpressionNode* GetNode(const std::string &identifier)
return &orNode;
else if (identifier == "NOT")
return &notNode;
else if (identifier == "C_COMPILER_ID")
return &cCompilerIdNode;
else if (identifier == "CXX_COMPILER_ID")
return &cxxCompilerIdNode;
else if (identifier == "CONFIGURATION")
return &configurationNode;
else if (identifier == "CONFIG")