| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // DuckDB |
| 3 | // |
| 4 | // duckdb/catalog/dependency.hpp |
| 5 | // |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #pragma once |
| 10 | |
| 11 | #include "duckdb/common/common.hpp" |
| 12 | #include "duckdb/common/unordered_set.hpp" |
| 13 | |
| 14 | namespace duckdb { |
| 15 | class CatalogEntry; |
| 16 | |
| 17 | enum class DependencyType { |
| 18 | DEPENDENCY_REGULAR = 0, |
| 19 | DEPENDENCY_AUTOMATIC = 1, |
| 20 | DEPENDENCY_OWNS = 2, |
| 21 | DEPENDENCY_OWNED_BY = 3 |
| 22 | }; |
| 23 | |
| 24 | struct Dependency { |
| 25 | Dependency(CatalogEntry &entry, DependencyType dependency_type = DependencyType::DEPENDENCY_REGULAR) |
| 26 | : // NOLINT: Allow implicit conversion from `CatalogEntry` |
| 27 | entry(entry), dependency_type(dependency_type) { |
| 28 | } |
| 29 | |
| 30 | //! The catalog entry this depends on |
| 31 | reference<CatalogEntry> entry; |
| 32 | //! The type of dependency |
| 33 | DependencyType dependency_type; |
| 34 | }; |
| 35 | |
| 36 | struct DependencyHashFunction { |
| 37 | uint64_t operator()(const Dependency &a) const { |
| 38 | std::hash<void *> hash_func; |
| 39 | return hash_func((void *)&a.entry.get()); |
| 40 | } |
| 41 | }; |
| 42 | |
| 43 | struct DependencyEquality { |
| 44 | bool operator()(const Dependency &a, const Dependency &b) const { |
| 45 | return RefersToSameObject(A: a.entry, B: b.entry); |
| 46 | } |
| 47 | }; |
| 48 | using dependency_set_t = unordered_set<Dependency, DependencyHashFunction, DependencyEquality>; |
| 49 | |
| 50 | } // namespace duckdb |
| 51 |