1 files changed, 82 insertions, 0 deletions
diff --git a/Source/cmIfCommand.h b/Source/cmIfCommand.h
new file mode 100644
index 0000000..f1f979d
--- /dev/null
+++ b/Source/cmIfCommand.h
@@ -0,0 +1,82 @@
+/*============================================================================
+  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 cmIfCommand_h
+#define cmIfCommand_h
+
+#include "cmCommand.h"
+
+#include "cmFunctionBlocker.h"
+
+class cmIfFunctionBlocker : public cmFunctionBlocker
+{
+public:
+  cmIfFunctionBlocker()
+  {
+    this->HasRun = false;
+    this->ScopeDepth = 0;
+  }
+  ~cmIfFunctionBlocker() CM_OVERRIDE {}
+  bool IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile& mf,
+                         cmExecutionStatus&) CM_OVERRIDE;
+  bool ShouldRemove(const cmListFileFunction& lff, cmMakefile& mf) CM_OVERRIDE;
+
+  std::vector<cmListFileArgument> Args;
+  std::vector<cmListFileFunction> Functions;
+  bool IsBlocking;
+  bool HasRun;
+  unsigned int ScopeDepth;
+};
+
+/// Starts an if block
+class cmIfCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  cmCommand* Clone() CM_OVERRIDE { return new cmIfCommand; }
+
+  /**
+   * This overrides the default InvokeInitialPass implementation.
+   * It records the arguments before expansion.
+   */
+  bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
+                         cmExecutionStatus&) CM_OVERRIDE;
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  bool InitialPass(std::vector<std::string> const&,
+                   cmExecutionStatus&) CM_OVERRIDE
+  {
+    return false;
+  }
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  std::string GetName() const CM_OVERRIDE { return "if"; }
+
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  bool IsScriptable() const CM_OVERRIDE { return true; }
+
+  // Filter the given variable definition based on policy CMP0054.
+  static const char* GetDefinitionIfUnquoted(
+    const cmMakefile* mf, cmExpandedCommandArgument const& argument);
+
+  cmTypeMacro(cmIfCommand, cmCommand);
+};
+
+#endif