continue: Add a new CMake language command for loop continuation (#14013)

Inspired-by: Doug Barbieri
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/Source/cmContinueCommand.cxx b/Source/cmContinueCommand.cxx
new file mode 100644
index 0000000..4a03caa
--- /dev/null
+++ b/Source/cmContinueCommand.cxx
@@ -0,0 +1,39 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2000-2014 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.
+============================================================================*/
+#include "cmContinueCommand.h"
+
+// cmContinueCommand
+bool cmContinueCommand::InitialPass(std::vector<std::string> const &args,
+                                  cmExecutionStatus &status)
+{
+  if(!this->Makefile->IsLoopBlock())
+    {
+    this->Makefile->IssueMessage(cmake::FATAL_ERROR,
+                                 "A CONTINUE command was found outside of a "
+                                 "proper FOREACH or WHILE loop scope.");
+    cmSystemTools::SetFatalErrorOccured();
+    return true;
+    }
+
+  status.SetContinueInvoked(true);
+
+  if(!args.empty())
+    {
+    this->Makefile->IssueMessage(cmake::FATAL_ERROR,
+                                 "The CONTINUE command does not accept any "
+                                 "arguments.");
+    cmSystemTools::SetFatalErrorOccured();
+    return true;
+    }
+
+  return true;
+}