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cmVariableWatchCommand: Port away from FinalPass

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This commit is contained in:
Daniel Pfeifer 2017-01-06 23:13:44 +01:00 committed by Regina Pfeifer
parent 360d415592
commit fbee46e262
2 changed files with 33 additions and 22 deletions
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41
Source/cmVariableWatchCommand.cxx
View File

@ -3,6 +3,7 @@
#include "cmVariableWatchCommand.h"
#include <sstream>
#include <utility>
#include "cmExecutionStatus.h"
#include "cmListFileCache.h"
@ -84,15 +85,39 @@ static void deleteVariableWatchCallbackData(void* client_data)
delete data;
}
cmVariableWatchCommand::cmVariableWatchCommand() = default;
cmVariableWatchCommand::~cmVariableWatchCommand()
/** This command does not really have a final pass but it needs to
stay alive since it owns variable watch callback information. */
class FinalAction
{
for (std::string const& wv : this->WatchedVariables) {
this->Makefile->GetCMakeInstance()->GetVariableWatch()->RemoveWatch(
wv, cmVariableWatchCommandVariableAccessed);
public:
FinalAction(cmMakefile* makefile, std::string variable)
: Action(std::make_shared<Impl>(makefile, std::move(variable)))
{
}
}
void operator()(cmMakefile&) const {}
private:
struct Impl
{
Impl(cmMakefile* makefile, std::string variable)
: Makefile(makefile)
, Variable(std::move(variable))
{
}
~Impl()
{
this->Makefile->GetCMakeInstance()->GetVariableWatch()->RemoveWatch(
this->Variable, cmVariableWatchCommandVariableAccessed);
}
cmMakefile* Makefile;
std::string Variable;
};
std::shared_ptr<Impl const> Action;
};
bool cmVariableWatchCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
@ -118,7 +143,6 @@ bool cmVariableWatchCommand::InitialPass(std::vector<std::string> const& args,
data->InCallback = false;
data->Command = command;
this->WatchedVariables.insert(variable);
if (!this->Makefile->GetCMakeInstance()->GetVariableWatch()->AddWatch(
variable, cmVariableWatchCommandVariableAccessed, data,
deleteVariableWatchCallbackData)) {
@ -126,5 +150,6 @@ bool cmVariableWatchCommand::InitialPass(std::vector<std::string> const& args,
return false;
}
this->Makefile->AddFinalAction(FinalAction(this->Makefile, variable));
return true;
}

14
Source/cmVariableWatchCommand.h
View File

@ -5,7 +5,6 @@
#include "cmConfigure.h" // IWYU pragma: keep
#include <set>
#include <string>
#include <vector>
@ -30,25 +29,12 @@ public:
return cm::make_unique<cmVariableWatchCommand>();
}
//! Default constructor
cmVariableWatchCommand();
//! Destructor.
~cmVariableWatchCommand() override;
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
bool InitialPass(std::vector<std::string> const& args,
cmExecutionStatus& status) override;
/** This command does not really have a final pass but it needs to
stay alive since it owns variable watch callback information. */
bool HasFinalPass() const override { return true; }
protected:
std::set<std::string> WatchedVariables;
};
#endif