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authorStephen Kelly <steveire@gmail.com>2013-02-07 16:36:29 (GMT)
committerBrad King <brad.king@kitware.com>2013-02-22 13:35:38 (GMT)
commit1c0597c25bf69a9c73e3d4f6ab68d16b5e56a271 (patch)
tree832bacf10674f534b5aa40444b5c3fbdd360474c /Source/cmExportTryCompileFileGenerator.cxx
parentf2ab17d4db86af5695f70b5c49f388319e510472 (diff)
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Add a new Export generator for IMPORTED targets.
This is to be used during try_compile using LINK_LIBRARIES in the srcfile signature and, in the future, TARGETS in the binary dir signature.
Diffstat (limited to 'Source/cmExportTryCompileFileGenerator.cxx')
-rw-r--r--Source/cmExportTryCompileFileGenerator.cxx114
1 files changed, 114 insertions, 0 deletions
diff --git a/Source/cmExportTryCompileFileGenerator.cxx b/Source/cmExportTryCompileFileGenerator.cxx
new file mode 100644
index 0000000..75f2651
--- /dev/null
+++ b/Source/cmExportTryCompileFileGenerator.cxx
@@ -0,0 +1,114 @@
+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2013 Stephen Kelly <steveire@gmail.com>
+
+ Distributed under the OSI-approved BSD License (the "License");
+ see accompanying file Copyright.txt for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even the
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the License for more information.
+============================================================================*/
+
+#include "cmExportTryCompileFileGenerator.h"
+
+#include "cmGeneratedFileStream.h"
+#include "cmGeneratorExpressionDAGChecker.h"
+
+//----------------------------------------------------------------------------
+bool cmExportTryCompileFileGenerator::GenerateMainFile(std::ostream& os)
+{
+ std::set<cmTarget*> emitted;
+ std::set<cmTarget*> emittedDeps;
+ while(!this->Exports.empty())
+ {
+ cmTarget* te = this->Exports.back();
+ this->Exports.pop_back();
+ if (emitted.insert(te).second)
+ {
+ emittedDeps.insert(te);
+ this->GenerateImportTargetCode(os, te);
+
+ ImportPropertyMap properties;
+
+ this->FindTargets("INTERFACE_INCLUDE_DIRECTORIES", te, emittedDeps);
+ this->FindTargets("INTERFACE_COMPILE_DEFINITIONS", te, emittedDeps);
+
+ this->PopulateProperties(te, properties, emittedDeps);
+
+ this->GenerateInterfaceProperties(te, os, properties);
+ }
+ }
+ return true;
+}
+
+std::string cmExportTryCompileFileGenerator::FindTargets(const char *propName,
+ cmTarget *tgt,
+ std::set<cmTarget*> &emitted)
+{
+ const char *prop = tgt->GetProperty(propName);
+ if(!prop)
+ {
+ return std::string();
+ }
+
+ cmListFileBacktrace lfbt;
+ cmGeneratorExpression ge(lfbt);
+
+ cmGeneratorExpressionDAGChecker dagChecker(lfbt,
+ tgt->GetName(),
+ propName, 0, 0);
+
+ cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(prop);
+
+ cmTarget dummyHead;
+ dummyHead.SetType(cmTarget::EXECUTABLE, "try_compile_dummy_exe");
+ dummyHead.SetMakefile(tgt->GetMakefile());
+
+ std::string result = cge->Evaluate(tgt->GetMakefile(), this->Config,
+ false, &dummyHead, tgt, &dagChecker);
+
+ const std::set<cmTarget*> &allTargets = cge->GetAllTargetsSeen();
+ for(std::set<cmTarget*>::const_iterator li = allTargets.begin();
+ li != allTargets.end(); ++li)
+ {
+ if(emitted.insert(*li).second)
+ {
+ this->Exports.push_back(*li);
+ }
+ }
+ return result;
+}
+
+//----------------------------------------------------------------------------
+void
+cmExportTryCompileFileGenerator::PopulateProperties(cmTarget* target,
+ ImportPropertyMap& properties,
+ std::set<cmTarget*> &emitted)
+{
+ cmPropertyMap props = target->GetProperties();
+ for(cmPropertyMap::const_iterator i = props.begin(); i != props.end(); ++i)
+ {
+ properties[i->first] = i->second.GetValue();
+
+ if(i->first.find("IMPORTED_LINK_INTERFACE_LIBRARIES") == 0)
+ {
+ const std::string libs = i->second.GetValue();
+
+ std::string evalResult = this->FindTargets(i->first.c_str(),
+ target, emitted);
+
+ std::vector<std::string> depends;
+ cmSystemTools::ExpandListArgument(evalResult, depends);
+ for(std::vector<std::string>::const_iterator li = depends.begin();
+ li != depends.end(); ++li)
+ {
+ cmTarget *tgt = target->GetMakefile()->FindTargetToUse(li->c_str());
+ if(tgt && emitted.insert(tgt).second)
+ {
+ this->Exports.push_back(tgt);
+ }
+ }
+ }
+ }
+}