Add const keyword to C API params

src/c_api/prepared_statement.cpp

@@ -8,7 +8,7 @@ using namespace kuzu::common;
 using namespace kuzu::main;
 
 void kuzu_prepared_statement_bind_cpp_value(kuzu_prepared_statement* prepared_statement,
-    char* param_name, const std::shared_ptr<Value>& value) {
+    const char* param_name, const std::shared_ptr<Value>& value) {
     auto* bound_values = static_cast<std::unordered_map<std::string, std::shared_ptr<Value>>*>(
         prepared_statement->_bound_values);
     bound_values->insert({param_name, value});
@@ -49,68 +49,68 @@ char* kuzu_prepared_statement_get_error_message(kuzu_prepared_statement* prepare
 }
 
 void kuzu_prepared_statement_bind_bool(
-    kuzu_prepared_statement* prepared_statement, char* param_name, bool value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, bool value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_int64(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int64_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int64_t value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_int32(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int32_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int32_t value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_int16(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int16_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int16_t value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_double(
-    kuzu_prepared_statement* prepared_statement, char* param_name, double value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, double value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_float(
-    kuzu_prepared_statement* prepared_statement, char* param_name, float value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, float value) {
     auto value_ptr = std::make_shared<Value>(value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_date(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_date_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_date_t value) {
     auto value_ptr = std::make_shared<Value>(date_t(value.days));
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_timestamp(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_timestamp_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_timestamp_t value) {
     auto value_ptr = std::make_shared<Value>(timestamp_t(value.value));
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_interval(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_interval_t value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_interval_t value) {
     auto value_ptr = std::make_shared<Value>(interval_t(value.months, value.days, value.micros));
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_string(
-    kuzu_prepared_statement* prepared_statement, char* param_name, char* value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, const char* value) {
     auto string_value = std::string(value);
     auto value_ptr = std::make_shared<Value>(string_value);
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }
 
 void kuzu_prepared_statement_bind_value(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_value* value) {
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_value* value) {
     auto value_ptr = std::make_shared<Value>(*static_cast<Value*>(value->_value));
     kuzu_prepared_statement_bind_cpp_value(prepared_statement, param_name, value_ptr);
 }

src/c_api/value.cpp

@@ -114,7 +114,7 @@ kuzu_value* kuzu_value_create_interval(kuzu_interval_t val_) {
     return c_value;
 }
 
-kuzu_value* kuzu_value_create_string(char* val_) {
+kuzu_value* kuzu_value_create_string(const char* val_) {
     auto* c_value = (kuzu_value*)calloc(1, sizeof(kuzu_value));
     c_value->_value = new Value(val_);
     return c_value;
@@ -266,7 +266,7 @@ char* kuzu_value_to_string(kuzu_value* value) {
     return c_string;
 }
 
-kuzu_node_val* kuzu_node_val_create(kuzu_internal_id_t id, char* label) {
+kuzu_node_val* kuzu_node_val_create(kuzu_internal_id_t id, const char* label) {
     auto id_val = std::make_unique<Value>(internalID_t(id.offset, id.table_id));
     auto label_val = std::make_unique<Value>(label);
     auto* node_val = new NodeVal(std::move(id_val), std::move(label_val));
@@ -354,7 +354,7 @@ char* kuzu_node_val_to_string(kuzu_node_val* node_val) {
 }
 
 kuzu_rel_val* kuzu_rel_val_create(
-    kuzu_internal_id_t src_id, kuzu_internal_id_t dst_id, char* label) {
+    kuzu_internal_id_t src_id, kuzu_internal_id_t dst_id, const char* label) {
     auto src_id_val = std::make_unique<Value>(internalID_t(src_id.offset, src_id.table_id));
     auto dst_id_val = std::make_unique<Value>(internalID_t(dst_id.offset, dst_id.table_id));
     auto label_val = std::make_unique<Value>(std::string(label));
@@ -437,7 +437,7 @@ kuzu_value* kuzu_rel_val_get_property_value_at(kuzu_rel_val* rel_val, uint64_t i
     return c_value;
 }
 
-void kuzu_rel_val_add_property(kuzu_rel_val* rel_val, char* name, kuzu_value* property) {
+void kuzu_rel_val_add_property(kuzu_rel_val* rel_val, const char* name, kuzu_value* property) {
     auto value_ = std::make_unique<Value>(*static_cast<Value*>(property->_value));
     static_cast<RelVal*>(rel_val->_rel_val)->addProperty(std::string(name), std::move(value_));
 }

src/include/c_api/kuzu.h

@@ -289,87 +289,87 @@ KUZU_C_API char* kuzu_prepared_statement_get_error_message(
  * @param value The boolean value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_bool(
-    kuzu_prepared_statement* prepared_statement, char* param_name, bool value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, bool value);
 /**
  * @brief Binds the given int64_t value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The int64_t value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_int64(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int64_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int64_t value);
 /**
  * @brief Binds the given int32_t value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The int32_t value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_int32(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int32_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int32_t value);
 /**
  * @brief Binds the given int16_t value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The int16_t value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_int16(
-    kuzu_prepared_statement* prepared_statement, char* param_name, int16_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, int16_t value);
 /**
  * @brief Binds the given double value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The double value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_double(
-    kuzu_prepared_statement* prepared_statement, char* param_name, double value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, double value);
 /**
  * @brief Binds the given float value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The float value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_float(
-    kuzu_prepared_statement* prepared_statement, char* param_name, float value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, float value);
 /**
  * @brief Binds the given date value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The date value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_date(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_date_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_date_t value);
 /**
  * @brief Binds the given timestamp value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The timestamp value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_timestamp(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_timestamp_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_timestamp_t value);
 /**
  * @brief Binds the given interval value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The interval value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_interval(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_interval_t value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_interval_t value);
 /**
  * @brief Binds the given string value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The string value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_string(
-    kuzu_prepared_statement* prepared_statement, char* param_name, char* value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, const char* value);
 /**
  * @brief Binds the given kuzu value to the given parameter name in the prepared statement.
  * @param prepared_statement The prepared statement instance to bind the value.
  * @param param_name The parameter name to bind the value.
  * @param value The kuzu value to bind.
  */
 KUZU_C_API void kuzu_prepared_statement_bind_value(
-    kuzu_prepared_statement* prepared_statement, char* param_name, kuzu_value* value);
+    kuzu_prepared_statement* prepared_statement, const char* param_name, kuzu_value* value);
 
 // QueryResult
 /**
@@ -608,7 +608,7 @@ KUZU_C_API kuzu_value* kuzu_value_create_interval(kuzu_interval_t val_);
  * destroying the returned value.
  * @param val_ The string value of the value to create.
  */
-KUZU_C_API kuzu_value* kuzu_value_create_string(char* val_);
+KUZU_C_API kuzu_value* kuzu_value_create_string(const char* val_);
 /**
  * @brief Creates a new value based on the given value. Caller is responsible for destroying the
  * returned value.
@@ -738,7 +738,7 @@ KUZU_C_API char* kuzu_value_to_string(kuzu_value* value);
  * @param id The internal id of the node.
  * @param label The label of the node.
  */
-KUZU_C_API kuzu_node_val* kuzu_node_val_create(kuzu_internal_id_t id, char* label);
+KUZU_C_API kuzu_node_val* kuzu_node_val_create(kuzu_internal_id_t id, const char* label);
 /**
  * @brief Creates a new node value from the given node value.
  * @param node_val The node value to clone.
@@ -807,7 +807,7 @@ KUZU_C_API char* kuzu_node_val_to_string(kuzu_node_val* node_val);
  * @param label The label of the rel.
  */
 KUZU_C_API kuzu_rel_val* kuzu_rel_val_create(
-    kuzu_internal_id_t src_id, kuzu_internal_id_t dst_id, char* label);
+    kuzu_internal_id_t src_id, kuzu_internal_id_t dst_id, const char* label);
 /**
  * @brief Creates a new rel value from the given rel value.
  * @param rel_val The rel value to clone.
@@ -867,7 +867,8 @@ KUZU_C_API kuzu_value* kuzu_rel_val_get_property_value_at(kuzu_rel_val* rel_val,
  * @param name The name of the property.
  * @param property The property(in value format) to add.
  */
-KUZU_C_API void kuzu_rel_val_add_property(kuzu_rel_val* rel_val, char* name, kuzu_value* property);
+KUZU_C_API void kuzu_rel_val_add_property(
+    kuzu_rel_val* rel_val, const char* name, kuzu_value* property);
 /**
  * @brief Converts the given rel value to string.
  * @param rel_val The rel value to convert.