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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#include "cmTargetPrecompileHeadersCommand.h"
#include <utility>
#include "cmGeneratorExpression.h"
#include "cmList.h"
#include "cmListFileCache.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
#include "cmTargetPropCommandBase.h"
namespace {
std::vector<std::string> ConvertToAbsoluteContent(
std::vector<std::string> const& content, std::string const& baseDir)
{
std::vector<std::string> absoluteContent;
absoluteContent.reserve(content.size());
for (std::string const& src : content) {
std::string absoluteSrc;
// Use '<foo.h>' and '"foo.h"' includes and absolute paths as-is.
// Interpret relative paths with respect to the source directory.
// If the path starts in a generator expression, assume it is absolute.
if (cmHasLiteralPrefix(src, "<") || cmHasLiteralPrefix(src, "\"") ||
cmSystemTools::FileIsFullPath(src) ||
cmGeneratorExpression::Find(src) == 0) {
absoluteSrc = src;
} else {
absoluteSrc = cmStrCat(baseDir, '/', src);
}
absoluteContent.emplace_back(std::move(absoluteSrc));
}
return absoluteContent;
}
class TargetPrecompileHeadersImpl : public cmTargetPropCommandBase
{
public:
using cmTargetPropCommandBase::cmTargetPropCommandBase;
private:
bool HandleDirectContent(cmTarget* tgt,
std::vector<std::string> const& content,
bool /*prepend*/, bool /*system*/) override
{
std::string const& base = this->Makefile->GetCurrentSourceDirectory();
tgt->AppendProperty("PRECOMPILE_HEADERS",
this->Join(ConvertToAbsoluteContent(content, base)),
this->Makefile->GetBacktrace());
return true;
}
void HandleInterfaceContent(cmTarget* tgt,
std::vector<std::string> const& content,
bool prepend, bool system) override
{
std::string const& base = this->Makefile->GetCurrentSourceDirectory();
this->cmTargetPropCommandBase::HandleInterfaceContent(
tgt, ConvertToAbsoluteContent(content, base), prepend, system);
}
void HandleMissingTarget(std::string const& name) override
{
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
cmStrCat("Cannot specify precompile headers for target \"", name,
"\" which is not built by this project."));
}
std::string Join(std::vector<std::string> const& content) override
{
return cmList::to_string(content);
}
};
} // namespace
bool cmTargetPrecompileHeadersCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
return TargetPrecompileHeadersImpl(status).HandleArguments(
args, "PRECOMPILE_HEADERS",
TargetPrecompileHeadersImpl::PROCESS_REUSE_FROM);
}
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