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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2012 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 "cmGeneratorExpressionDAGChecker.h"
#include "cmMakefile.h"
#include "cmAlgorithms.h"
//----------------------------------------------------------------------------
cmGeneratorExpressionDAGChecker::cmGeneratorExpressionDAGChecker(
const cmListFileBacktrace &backtrace,
const std::string &target,
const std::string &property,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *parent)
: Parent(parent), Target(target), Property(property),
Content(content), Backtrace(backtrace), TransitivePropertiesOnly(false)
{
Initialize();
}
//----------------------------------------------------------------------------
cmGeneratorExpressionDAGChecker::cmGeneratorExpressionDAGChecker(
const std::string &target,
const std::string &property,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *parent)
: Parent(parent), Target(target), Property(property),
Content(content), Backtrace(NULL), TransitivePropertiesOnly(false)
{
Initialize();
}
//----------------------------------------------------------------------------
void
cmGeneratorExpressionDAGChecker::Initialize()
{
const cmGeneratorExpressionDAGChecker *top = this;
const cmGeneratorExpressionDAGChecker *p = this->Parent;
while (p)
{
top = p;
p = p->Parent;
}
this->CheckResult = this->CheckGraph();
#define TEST_TRANSITIVE_PROPERTY_METHOD(METHOD) \
top->METHOD () ||
if (CheckResult == DAG && (
CM_FOR_EACH_TRANSITIVE_PROPERTY_METHOD(TEST_TRANSITIVE_PROPERTY_METHOD)
false)
)
#undef TEST_TRANSITIVE_PROPERTY_METHOD
{
std::map<std::string, std::set<std::string> >::const_iterator it
= top->Seen.find(this->Target);
if (it != top->Seen.end())
{
const std::set<std::string> &propSet = it->second;
if (propSet.find(this->Property) != propSet.end())
{
this->CheckResult = ALREADY_SEEN;
return;
}
}
const_cast<cmGeneratorExpressionDAGChecker *>(top)
->Seen[this->Target].insert(this->Property);
}
}
//----------------------------------------------------------------------------
cmGeneratorExpressionDAGChecker::Result
cmGeneratorExpressionDAGChecker::Check() const
{
return this->CheckResult;
}
//----------------------------------------------------------------------------
void cmGeneratorExpressionDAGChecker::ReportError(
cmGeneratorExpressionContext *context,
const std::string &expr)
{
if (this->CheckResult == DAG)
{
return;
}
context->HadError = true;
if (context->Quiet)
{
return;
}
const cmGeneratorExpressionDAGChecker *parent = this->Parent;
if (parent && !parent->Parent)
{
std::ostringstream e;
e << "Error evaluating generator expression:\n"
<< " " << expr << "\n"
<< "Self reference on target \""
<< context->HeadTarget->GetName() << "\".\n";
context->Makefile->GetCMakeInstance()
->IssueMessage(cmake::FATAL_ERROR, e.str(),
parent->Backtrace);
return;
}
{
std::ostringstream e;
e << "Error evaluating generator expression:\n"
<< " " << expr << "\n"
<< "Dependency loop found.";
context->Makefile->GetCMakeInstance()
->IssueMessage(cmake::FATAL_ERROR, e.str(),
context->Backtrace);
}
int loopStep = 1;
while (parent)
{
std::ostringstream e;
e << "Loop step " << loopStep << "\n"
<< " "
<< (parent->Content ? parent->Content->GetOriginalExpression() : expr)
<< "\n";
context->Makefile->GetCMakeInstance()
->IssueMessage(cmake::FATAL_ERROR, e.str(),
parent->Backtrace);
parent = parent->Parent;
++loopStep;
}
}
//----------------------------------------------------------------------------
cmGeneratorExpressionDAGChecker::Result
cmGeneratorExpressionDAGChecker::CheckGraph() const
{
const cmGeneratorExpressionDAGChecker *parent = this->Parent;
while (parent)
{
if (this->Target == parent->Target && this->Property == parent->Property)
{
return (parent == this->Parent) ? SELF_REFERENCE : CYCLIC_REFERENCE;
}
parent = parent->Parent;
}
return DAG;
}
//----------------------------------------------------------------------------
bool cmGeneratorExpressionDAGChecker::GetTransitivePropertiesOnly()
{
const cmGeneratorExpressionDAGChecker *top = this;
const cmGeneratorExpressionDAGChecker *parent = this->Parent;
while (parent)
{
top = parent;
parent = parent->Parent;
}
return top->TransitivePropertiesOnly;
}
//----------------------------------------------------------------------------
bool cmGeneratorExpressionDAGChecker::EvaluatingLinkLibraries(const char *tgt)
{
const cmGeneratorExpressionDAGChecker *top = this;
const cmGeneratorExpressionDAGChecker *parent = this->Parent;
while (parent)
{
top = parent;
parent = parent->Parent;
}
const char *prop = top->Property.c_str();
if (tgt)
{
return top->Target == tgt && strcmp(prop, "LINK_LIBRARIES") == 0;
}
return (strcmp(prop, "LINK_LIBRARIES") == 0
|| strcmp(prop, "LINK_INTERFACE_LIBRARIES") == 0
|| strcmp(prop, "IMPORTED_LINK_INTERFACE_LIBRARIES") == 0
|| cmHasLiteralPrefix(prop, "LINK_INTERFACE_LIBRARIES_")
|| cmHasLiteralPrefix(prop, "IMPORTED_LINK_INTERFACE_LIBRARIES_"))
|| strcmp(prop, "INTERFACE_LINK_LIBRARIES") == 0;
}
std::string cmGeneratorExpressionDAGChecker::TopTarget() const
{
const cmGeneratorExpressionDAGChecker *top = this;
const cmGeneratorExpressionDAGChecker *parent = this->Parent;
while (parent)
{
top = parent;
parent = parent->Parent;
}
return top->Target;
}
enum TransitiveProperty {
#define DEFINE_ENUM_ENTRY(NAME) NAME,
CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(DEFINE_ENUM_ENTRY)
#undef DEFINE_ENUM_ENTRY
TransitivePropertyTerminal
};
template<TransitiveProperty>
bool additionalTest(const char* const)
{
return false;
}
template<>
bool additionalTest<COMPILE_DEFINITIONS>(const char* const prop)
{
return cmHasLiteralPrefix(prop, "COMPILE_DEFINITIONS_");
}
#define DEFINE_TRANSITIVE_PROPERTY_METHOD(METHOD, PROPERTY) \
bool cmGeneratorExpressionDAGChecker::METHOD() const \
{ \
const char* const prop = this->Property.c_str(); \
if (strcmp(prop, #PROPERTY) == 0 \
|| strcmp(prop, "INTERFACE_" #PROPERTY) == 0) \
{ \
return true; \
} \
return additionalTest<PROPERTY>(prop); \
}
CM_FOR_EACH_TRANSITIVE_PROPERTY(DEFINE_TRANSITIVE_PROPERTY_METHOD)
#undef DEFINE_TRANSITIVE_PROPERTY_METHOD
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