Merge pull request The-OpenROAD-Project#8719 from The-OpenROAD-Project-staging/odb-3dblox-types

odb: fix struct vs class and add some const

Author: maliberty

src/odb/src/3dblox/bmapParser.h

@@ -10,8 +10,8 @@ namespace utl {
 class Logger;
 }
 namespace odb {
-class BumpMapData;
-class BumpMapEntry;
+struct BumpMapData;
+struct BumpMapEntry;
 
 class BmapParser
 {

src/odb/src/3dblox/objects.h

@@ -124,12 +124,12 @@ struct DbxData
 
 struct BumpMapEntry
 {
-  std::string bump_inst_name;
-  std::string bump_cell_type;
-  double x{0.0};
-  double y{0.0};
-  std::string port_name;
-  std::string net_name;
+  const std::string bump_inst_name;
+  const std::string bump_cell_type;
+  const double x{0.0};
+  const double y{0.0};
+  const std::string port_name;
+  const std::string net_name;
 
   BumpMapEntry() = default;
   BumpMapEntry(const std::string& inst_name,
@@ -153,4 +153,4 @@ struct BumpMapData
   std::vector<BumpMapEntry> entries;
 };
 
-}  // namespace odb
+}  // namespace odb