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cmMakefile::VariablePushPop: helper class to manage variable scopes

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This commit is contained in:
Marc Chevrier 2022-08-15 17:05:12 +02:00
parent 3d94ee0e03
commit 604993248f
2 changed files with 27 additions and 0 deletions
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13
Source/cmMakefile.cxx
View File

@ -4543,6 +4543,19 @@ bool cmMakefile::SetPolicyVersion(std::string const& version_min,
cmPolicies::WarnCompat::On);
}
cmMakefile::VariablePushPop::VariablePushPop(cmMakefile* m)
: Makefile(m)
{
this->Makefile->StateSnapshot =
this->Makefile->GetState()->CreateVariableScopeSnapshot(
this->Makefile->StateSnapshot);
}
cmMakefile::VariablePushPop::~VariablePushPop()
{
this->Makefile->PopSnapshot();
}
bool cmMakefile::HasCMP0054AlreadyBeenReported(
cmListFileContext const& context) const
{

14
Source/cmMakefile.h
View File

@ -376,6 +376,20 @@ public:
};
friend class PolicyPushPop;
/** Helper class to push and pop variables scopes automatically. */
class VariablePushPop
{
public:
VariablePushPop(cmMakefile* m);
~VariablePushPop();
VariablePushPop(VariablePushPop const&) = delete;
VariablePushPop& operator=(VariablePushPop const&) = delete;
private:
cmMakefile* Makefile;
};
/**
* Determine if the given context, name pair has already been reported
* in context of CMP0054.