fix: fix build warning in switch case (#118)

Author: MisterRaindrop

src/iceberg/json_internal.cc

@@ -43,6 +43,7 @@
 #include "iceberg/util/formatter.h"  // IWYU pragma: keep
 #include "iceberg/util/macros.h"
 #include "iceberg/util/timepoint.h"
+#include "iceberg/util/unreachable.h"
 
 namespace iceberg {
 
@@ -476,6 +477,9 @@ nlohmann::json ToJson(const Type& type) {
     }
     case TypeId::kUuid:
       return "uuid";
+    default:
+      internal::Unreachable(std::format("Unknown type id: {}",
+                            static_cast<int>(type.type_id())));
   }
 }
 

src/iceberg/schema_util.cc

@@ -29,6 +29,7 @@
 #include "iceberg/util/checked_cast.h"
 #include "iceberg/util/formatter_internal.h"
 #include "iceberg/util/macros.h"
+#include "iceberg/util/unreachable.h"
 
 namespace iceberg {
 
@@ -171,6 +172,9 @@ std::string_view ToString(FieldProjection::Kind kind) {
       return "default";
     case FieldProjection::Kind::kNull:
       return "null";
+    default:
+      internal::Unreachable(std::format("Unknown field projection kind: {}",
+                            static_cast<int>(kind)));
   }
 }
 

src/iceberg/transform.cc

@@ -24,6 +24,7 @@
 
 #include "iceberg/transform_function.h"
 #include "iceberg/type.h"
+#include "iceberg/util/unreachable.h"
 
 namespace iceberg {
 namespace {
@@ -58,6 +59,9 @@ constexpr std::string_view TransformTypeToString(TransformType type) {
       return kHourName;
     case TransformType::kVoid:
       return kVoidName;
+    default:
+      internal::Unreachable(std::format("Unknown transform type: {}",
+                            static_cast<int>(type)));
   }
 }
 
@@ -165,6 +169,9 @@ std::string Transform::ToString() const {
     case TransformType::kTruncate:
       return std::format("{}[{}]", TransformTypeToString(transform_type_),
                          std::get<int32_t>(param_));
+    default:
+      internal::Unreachable(std::format("Unknown transform type: {}",
+                            static_cast<int>(transform_type_)));
   }
 }