vibhatha commented on code in PR #13375:
URL: https://github.com/apache/arrow/pull/13375#discussion_r896732396
##########
cpp/src/arrow/compute/registry.cc:
##########
@@ -34,59 +34,72 @@ namespace compute {
class FunctionRegistry::FunctionRegistryImpl {
public:
- Status AddFunction(std::shared_ptr<Function> function, bool allow_overwrite)
{
-#ifndef NDEBUG
- // This validates docstrings extensively, so don't waste time on it
- // in release builds.
- RETURN_NOT_OK(function->Validate());
-#endif
+ explicit FunctionRegistryImpl(FunctionRegistryImpl* parent = NULLPTR)
+ : parent_(parent) {}
+ ~FunctionRegistryImpl() {}
- std::lock_guard<std::mutex> mutation_guard(lock_);
+ Status CanAddFunction(std::shared_ptr<Function> function, bool
allow_overwrite) {
+ if (parent_ != NULLPTR) {
+ RETURN_NOT_OK(parent_->CanAddFunction(function, allow_overwrite));
+ }
+ return DoAddFunction(function, allow_overwrite, /*add=*/false);
+ }
- const std::string& name = function->name();
- auto it = name_to_function_.find(name);
- if (it != name_to_function_.end() && !allow_overwrite) {
- return Status::KeyError("Already have a function registered with name:
", name);
+ Status AddFunction(std::shared_ptr<Function> function, bool allow_overwrite)
{
+ if (parent_ != NULLPTR) {
+ RETURN_NOT_OK(parent_->CanAddFunction(function, allow_overwrite));
}
- name_to_function_[name] = std::move(function);
- return Status::OK();
+ return DoAddFunction(function, allow_overwrite, /*add=*/true);
+ }
+
+ Status CanAddAlias(const std::string& target_name, const std::string&
source_name) {
+ if (parent_ != NULLPTR) {
+ RETURN_NOT_OK(parent_->CanAddFunctionName(target_name,
+ /*allow_overwrite=*/false));
Review Comment:
Do we need to mention this in a comment?
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