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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <map>
#include <set>
#include <string>
#include "cmListFileCache.h"
struct GeneratorExpressionContent;
struct cmGeneratorExpressionContext;
class cmGeneratorTarget;
class cmLocalGenerator;
struct cmGeneratorExpressionDAGChecker
{
enum class ComputingLinkLibraries
{
No,
Yes,
};
cmGeneratorExpressionDAGChecker(
cmGeneratorTarget const* target, std::string property,
GeneratorExpressionContent const* content,
cmGeneratorExpressionDAGChecker* parent, cmLocalGenerator const* contextLG,
std::string const& contextConfig,
cmListFileBacktrace backtrace = cmListFileBacktrace(),
ComputingLinkLibraries computingLinkLibraries =
ComputingLinkLibraries::No);
enum Result
{
DAG,
SELF_REFERENCE,
CYCLIC_REFERENCE,
ALREADY_SEEN
};
Result Check() const;
void ReportError(cmGeneratorExpressionContext* context,
const std::string& expr);
bool EvaluatingTransitiveProperty() const;
bool EvaluatingGenexExpression() const;
bool EvaluatingPICExpression() const;
bool EvaluatingCompileExpression() const;
bool EvaluatingLinkExpression() const;
bool EvaluatingLinkOptionsExpression() const;
bool EvaluatingLinkerLauncher() const;
/** Returns true only when computing the actual link dependency
graph for cmGeneratorTarget::GetLinkImplementationLibraries
or cmGeneratorTarget::GetLinkInterfaceLibraries. */
bool IsComputingLinkLibraries() const;
enum class ForGenex
{
ANY,
LINK_LIBRARY,
LINK_GROUP
};
bool EvaluatingLinkLibraries(cmGeneratorTarget const* tgt = nullptr,
ForGenex genex = ForGenex::ANY) const;
bool EvaluatingSources() const;
bool GetTransitivePropertiesOnly() const;
void SetTransitivePropertiesOnly() { this->TransitivePropertiesOnly = true; }
bool GetTransitivePropertiesOnlyCMP0131() const;
void SetTransitivePropertiesOnlyCMP0131() { this->CMP0131 = true; }
cmGeneratorTarget const* TopTarget() const;
private:
Result CheckGraph() const;
const cmGeneratorExpressionDAGChecker* const Parent;
const cmGeneratorExpressionDAGChecker* const Top;
cmGeneratorTarget const* Target;
const std::string Property;
mutable std::map<cmGeneratorTarget const*, std::set<std::string>> Seen;
const GeneratorExpressionContent* const Content;
const cmListFileBacktrace Backtrace;
Result CheckResult;
bool TransitivePropertiesOnly = false;
bool CMP0131 = false;
bool TopIsTransitiveProperty = false;
ComputingLinkLibraries const ComputingLinkLibraries_ =
ComputingLinkLibraries::No;
};
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