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GenexEval: Extract a getLinkedTargetsContent from TargetPropertyNode. 

This will be used to process transitive components of properties
which depend on linked targets. Currently only the link interface
of the target can be used as the source of the linked targets, but
in the next commit it will be possible to use the link implementation
as the source of link targets.

This commit does not change the semantics of the code.
This commit is contained in:
Stephen Kelly 2013-05-29 00:34:30 +02:00
parent 53164ac997
commit 0b39fefeac
1 changed files with 46 additions and 35 deletions
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81
Source/cmGeneratorExpressionEvaluator.cxx
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@ -313,6 +313,48 @@ static const char* targetPropertyTransitiveWhitelist[] = {
, "INTERFACE_COMPILE_DEFINITIONS"
};
std::string getLinkedTargetsContent(const std::vector<std::string> &libraries,
cmTarget *target,
cmGeneratorExpressionContext *context,
cmGeneratorExpressionDAGChecker *dagChecker,
const std::string &interfacePropertyName)
{
cmGeneratorExpression ge(context->Backtrace);
std::string sep;
std::string depString;
for (std::vector<std::string>::const_iterator
it = libraries.begin();
it != libraries.end(); ++it)
{
if (*it == target->GetName())
{
// Broken code can have a target in its own link interface.
// Don't follow such link interface entries so as not to create a
// self-referencing loop.
continue;
}
if (context->Makefile->FindTargetToUse(it->c_str()))
{
depString +=
sep + "$<TARGET_PROPERTY:" + *it + "," + interfacePropertyName + ">";
sep = ";";
}
}
cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(depString);
std::string linkedTargetsContent = cge->Evaluate(context->Makefile,
context->Config,
context->Quiet,
context->HeadTarget,
target,
dagChecker);
if (cge->GetHadContextSensitiveCondition())
{
context->HadContextSensitiveCondition = true;
}
return linkedTargetsContent;
}
//----------------------------------------------------------------------------
struct TransitiveWhitelistCompare
{
@ -508,41 +550,10 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
context->HeadTarget);
if(iface)
{
cmGeneratorExpression ge(context->Backtrace);
std::string sep;
std::string depString;
for (std::vector<std::string>::const_iterator
it = iface->Libraries.begin();
it != iface->Libraries.end(); ++it)
{
if (*it == target->GetName())
{
// Broken code can have a target in its own link interface.
// Don't follow such link interface entries so as not to create a
// self-referencing loop.
continue;
}
if (context->Makefile->FindTargetToUse(it->c_str()))
{
depString +=
sep + "$<TARGET_PROPERTY:" + *it + ","
+ interfacePropertyName + ">";
sep = ";";
}
}
cmsys::auto_ptr<cmCompiledGeneratorExpression> cge =
ge.Parse(depString);
linkedTargetsContent = cge->Evaluate(context->Makefile,
context->Config,
context->Quiet,
context->HeadTarget,
target,
&dagChecker);
if (cge->GetHadContextSensitiveCondition())
{
context->HadContextSensitiveCondition = true;
}
linkedTargetsContent =
getLinkedTargetsContent(iface->Libraries, target,
context, &dagChecker,
interfacePropertyName);
}
}