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-rw-r--r--Source/cmCMakePolicyCommand.cxx9
-rw-r--r--Source/cmMakefile.cxx6
-rw-r--r--Source/cmMakefile.h3
-rw-r--r--Source/cmStateSnapshot.cxx8
-rw-r--r--Source/cmStateSnapshot.h3
-rw-r--r--Tests/PolicyScope/CMakeLists.txt8
6 files changed, 28 insertions, 9 deletions
diff --git a/Source/cmCMakePolicyCommand.cxx b/Source/cmCMakePolicyCommand.cxx
index 7ca1cbc..adf9ef8 100644
--- a/Source/cmCMakePolicyCommand.cxx
+++ b/Source/cmCMakePolicyCommand.cxx
@@ -95,7 +95,11 @@ bool cmCMakePolicyCommand::HandleSetMode(std::vector<std::string> const& args)
bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
{
- if (args.size() != 3) {
+ bool parent_scope = false;
+ if (args.size() == 4 && args[3] == "PARENT_SCOPE") {
+ // Undocumented PARENT_SCOPE option for use within CMake.
+ parent_scope = true;
+ } else if (args.size() != 3) {
this->SetError("GET must be given exactly 2 additional arguments.");
return false;
}
@@ -115,7 +119,8 @@ bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
}
// Lookup the policy setting.
- cmPolicies::PolicyStatus status = this->Makefile->GetPolicyStatus(pid);
+ cmPolicies::PolicyStatus status =
+ this->Makefile->GetPolicyStatus(pid, parent_scope);
switch (status) {
case cmPolicies::OLD:
// Report that the policy is set to OLD.
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 9aeeb5c..490d516 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -4089,10 +4089,10 @@ const char* cmMakefile::GetDefineFlagsCMP0059() const
return this->DefineFlagsOrig.c_str();
}
-cmPolicies::PolicyStatus cmMakefile::GetPolicyStatus(
- cmPolicies::PolicyID id) const
+cmPolicies::PolicyStatus cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id,
+ bool parent_scope) const
{
- return this->StateSnapshot.GetPolicy(id);
+ return this->StateSnapshot.GetPolicy(id, parent_scope);
}
bool cmMakefile::PolicyOptionalWarningEnabled(std::string const& var)
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index d2626cd..8589deb 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -284,7 +284,8 @@ public:
*/
bool SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
bool SetPolicy(const char* id, cmPolicies::PolicyStatus status);
- cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id) const;
+ cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id,
+ bool parent_scope = false) const;
bool SetPolicyVersion(std::string const& version_min,
std::string const& version_max);
void RecordPolicies(cmPolicies::PolicyMap& pm);
diff --git a/Source/cmStateSnapshot.cxx b/Source/cmStateSnapshot.cxx
index 0d97c33..0229a77 100644
--- a/Source/cmStateSnapshot.cxx
+++ b/Source/cmStateSnapshot.cxx
@@ -160,8 +160,8 @@ void cmStateSnapshot::SetPolicy(cmPolicies::PolicyID id,
}
}
-cmPolicies::PolicyStatus cmStateSnapshot::GetPolicy(
- cmPolicies::PolicyID id) const
+cmPolicies::PolicyStatus cmStateSnapshot::GetPolicy(cmPolicies::PolicyID id,
+ bool parent_scope) const
{
cmPolicies::PolicyStatus status = cmPolicies::GetPolicyStatus(id);
@@ -180,6 +180,10 @@ cmPolicies::PolicyStatus cmStateSnapshot::GetPolicy(
cmLinkedTree<cmStateDetail::PolicyStackEntry>::iterator root =
dir->DirectoryEnd->PolicyRoot;
for (; leaf != root; ++leaf) {
+ if (parent_scope) {
+ parent_scope = false;
+ continue;
+ }
if (leaf->IsDefined(id)) {
status = leaf->Get(id);
return status;
diff --git a/Source/cmStateSnapshot.h b/Source/cmStateSnapshot.h
index 94d6274..af5653b 100644
--- a/Source/cmStateSnapshot.h
+++ b/Source/cmStateSnapshot.h
@@ -43,7 +43,8 @@ public:
cmStateEnums::SnapshotType GetType() const;
void SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
- cmPolicies::PolicyStatus GetPolicy(cmPolicies::PolicyID id) const;
+ cmPolicies::PolicyStatus GetPolicy(cmPolicies::PolicyID id,
+ bool parent_scope = false) const;
bool HasDefinedPolicyCMP0011();
void PushPolicy(cmPolicies::PolicyMap const& entry, bool weak);
bool PopPolicy();
diff --git a/Tests/PolicyScope/CMakeLists.txt b/Tests/PolicyScope/CMakeLists.txt
index 413195a..353842b 100644
--- a/Tests/PolicyScope/CMakeLists.txt
+++ b/Tests/PolicyScope/CMakeLists.txt
@@ -52,6 +52,10 @@ if(1)
# CMP0002 should be changed when this function is invoked
cmake_policy(GET CMP0002 cmp)
check(CMP0002 "OLD" "${cmp}")
+
+ # The undocumented PARENT_SCOPE option sees the caller's setting.
+ cmake_policy(GET CMP0002 cmp PARENT_SCOPE)
+ check(CMP0002 "NEW" "${cmp}")
endfunction()
# Unset CMP0002
@@ -61,6 +65,10 @@ if(1)
cmake_policy(GET CMP0002 cmp)
check(CMP0002 "" "${cmp}")
+ # The undocumented PARENT_SCOPE option sees the caller's setting.
+ cmake_policy(GET CMP0002 cmp PARENT_SCOPE)
+ check(CMP0002 "NEW" "${cmp}")
+
# Setting the policy should work here and also in the caller.
cmake_policy(SET CMP0002 OLD)
cmake_policy(GET CMP0002 cmp)