ENH: disable function objects in post-process mode

- prevents accidental overwrite of runtime conversions.

src/catalyst/areaMesh/catalystFaMesh.C

@@ -113,6 +113,14 @@ Foam::functionObjects::catalystFaMesh::catalystFaMesh
     backends_(),
     adaptor_()
 {
+    if (postProcess)
+    {
+        // Disable for post-process mode.
+        // Emit as FatalError for the try/catch in the caller.
+        FatalError
+            << type() << " disabled in post-process mode"
+            << exit(FatalError);
+    }
     read(dict);
 }
 

src/catalyst/cloud/catalystCloud.C

@@ -85,6 +85,14 @@ Foam::functionObjects::catalystCloud::catalystCloud
     selectFields_(),
     adaptor_()
 {
+    if (postProcess)
+    {
+        // Disable for post-process mode.
+        // Emit as FatalError for the try/catch in the caller.
+        FatalError
+            << type() << " disabled in post-process mode"
+            << exit(FatalError);
+    }
     read(dict);
 }
 

src/catalyst/volMesh/catalystFvMesh.C

@@ -112,6 +112,14 @@ Foam::functionObjects::catalystFvMesh::catalystFvMesh
     backends_(),
     adaptor_()
 {
+    if (postProcess)
+    {
+        // Disable for post-process mode.
+        // Emit as FatalError for the try/catch in the caller.
+        FatalError
+            << type() << " disabled in post-process mode"
+            << exit(FatalError);
+    }
     read(dict);
 }