Create a very basic tablegen instance

include/serene/errors/errors.td

@@ -1 +1,24 @@
-def Err;
+
+class Error<string _title = "", string _desc = ""> {
+      string title = _title;
+      string description = _desc;
+}
+
+def Err : Error<"Err1 titel"> {
+    let description = [{
+        err1
+        multiline
+        desc
+    }];
+}
+
+def Err2 : Error {
+    let title = "err 2 titel";
+    let description = "err2 desc";
+}
+
+def Err3 : Error<"err3", [{
+err3
+multiline
+desc
+}]>;

tools/tbl-srn/CMakeLists.txt

@@ -16,8 +16,12 @@
 
 set(LLVM_LINK_COMPONENTS Support TableGen)
 
+#TODO: Make sure that we don't include the project wide header files
+#      path here
+include_directories(${PROJECT_SOURCE_DIR}/tools/tbl-srn)
+
 add_executable(tbl-srn
-  errors-backend.cpp
+  serene/errors-backend.cpp
   main.cpp
 )
 

tools/tbl-srn/main.cpp

@@ -23,7 +23,7 @@
  * instances.
  */
 
-#include <errors-backend.h>
+#include "serene/errors-backend.h"
 
 #include <llvm/Support/CommandLine.h>
 #include <llvm/Support/InitLLVM.h>
@@ -34,19 +34,25 @@
 namespace cl = llvm::cl;
 
 namespace serene {
-enum ActionType { ErrorsBackend };
+enum ActionType { PrintRecords, ErrorsBackend };
 
-cl::opt<ActionType>
-    action(cl::desc("Action to perform:"),
-           cl::values(clEnumValN(
-               ErrorsBackend, "errors-backend",
-               "Generate a C++ file containing errors in the input file")));
+cl::opt<ActionType> action(
+    cl::desc("Action to perform:"),
+
+    cl::values(
+        clEnumValN(ErrorsBackend, "errors-backend",
+                   "Generate a C++ file containing errors in the input file"),
+        clEnumValN(PrintRecords, "print-records",
+                   "Print all records to stdout (default)")));
 
 bool llvmTableGenMain(llvm::raw_ostream &os, llvm::RecordKeeper &records) {
   switch (action) {
   case ErrorsBackend:
     emitErrors(records, os);
     break;
+  case PrintRecords:
+    os << records;
+    break;
   }
   return false;
 }

tools/tbl-srn/serene/errors-backend.cpp

@@ -16,7 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <errors-backend.h>
+// The "serene/" part is due to a convention that we use in the project
+#include "serene/errors-backend.h"
 
 #include <llvm/Support/Format.h>
 
@@ -39,7 +40,10 @@ public:
 
 void ErrorsBackend::run(llvm::raw_ostream &os) {
   llvm::emitSourceFileHeader("Serene's Errors collection", os);
-
+  for (const auto &classPair : records.getClasses()) {
+    llvm::Record *classRec = classPair.second.get();
+    os << classRec << "--\n";
+  }
   (void)records;
 }