| /*============================================================================ |
| 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. |
| ============================================================================*/ |
| #ifndef cmGeneratorExpressionDAGChecker_h |
| #define cmGeneratorExpressionDAGChecker_h |
| |
| #include "cmStandardIncludes.h" |
| |
| #include "cmGeneratorExpressionEvaluator.h" |
| |
| //---------------------------------------------------------------------------- |
| struct cmGeneratorExpressionDAGChecker |
| { |
| cmGeneratorExpressionDAGChecker(const cmListFileBacktrace &backtrace, |
| const std::string &target, |
| const std::string &property, |
| const GeneratorExpressionContent *content, |
| cmGeneratorExpressionDAGChecker *parent); |
| |
| enum Result { |
| DAG, |
| SELF_REFERENCE, |
| CYCLIC_REFERENCE, |
| ALREADY_SEEN |
| }; |
| |
| Result check() const; |
| |
| void reportError(cmGeneratorExpressionContext *context, |
| const std::string &expr); |
| |
| bool EvaluatingLinkLibraries(); |
| bool EvaluatingIncludeDirectories() const; |
| bool EvaluatingCompileDefinitions() const; |
| |
| private: |
| Result checkGraph() const; |
| |
| private: |
| const cmGeneratorExpressionDAGChecker * const Parent; |
| const std::string Target; |
| const std::string Property; |
| std::map<cmStdString, std::set<cmStdString> > Seen; |
| const GeneratorExpressionContent * const Content; |
| const cmListFileBacktrace Backtrace; |
| Result CheckResult; |
| }; |
| |
| #endif |