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+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+ 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 cmFunctionBlocker_h
+#define cmFunctionBlocker_h
+
+#include "cmStandardIncludes.h"
+#include "cmExecutionStatus.h"
+#include "cmListFileCache.h"
+class cmMakefile;
+
+class cmFunctionBlocker
+{
+public:
+ /**
+ * should a function be blocked
+ */
+ virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
+ cmMakefile&mf,
+ cmExecutionStatus &status) = 0;
+
+ /**
+ * should this function blocker be removed, useful when one function adds a
+ * blocker and another must remove it
+ */
+ virtual bool ShouldRemove(const cmListFileFunction&,
+ cmMakefile&) {return false;}
+
+ virtual ~cmFunctionBlocker() {}
+
+ /** Set/Get the context in which this blocker is created. */
+ void SetStartingContext(cmListFileContext const& lfc)
+ { this->StartingContext = lfc; }
+ cmListFileContext const& GetStartingContext()
+ { return this->StartingContext; }
+private:
+ cmListFileContext StartingContext;
+};
+
+#endif