diff options
author | Jacques Lucke <jacques@blender.org> | 2021-01-13 12:48:39 +0300 |
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committer | Jacques Lucke <jacques@blender.org> | 2021-01-13 12:48:39 +0300 |
commit | 614bd239f85292a8ca6ca454b48f4a1342316252 (patch) | |
tree | 775b1b0341cf40c053f7990fb58070bf2484960f /source/blender/blenkernel/BKE_attribute_access.hh | |
parent | 7b68d0679e98b3b4ef981d00df0293940675fed8 (diff) |
Geometry Nodes: support optional ownership for typed attributes
This will simplify some code in an upcoming commit and will be
useful for T83793.
Diffstat (limited to 'source/blender/blenkernel/BKE_attribute_access.hh')
-rw-r--r-- | source/blender/blenkernel/BKE_attribute_access.hh | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/source/blender/blenkernel/BKE_attribute_access.hh b/source/blender/blenkernel/BKE_attribute_access.hh index 131656136f1..0c980178ffa 100644 --- a/source/blender/blenkernel/BKE_attribute_access.hh +++ b/source/blender/blenkernel/BKE_attribute_access.hh @@ -187,15 +187,22 @@ class WriteAttribute { using ReadAttributePtr = std::unique_ptr<ReadAttribute>; using WriteAttributePtr = std::unique_ptr<WriteAttribute>; -/* This provides type safe access to an attribute. */ +/* This provides type safe access to an attribute. + * The underlying ReadAttribute is owned optionally. */ template<typename T> class TypedReadAttribute { private: - ReadAttributePtr attribute_; + std::unique_ptr<ReadAttribute> owned_attribute_; + ReadAttribute *attribute_; public: - TypedReadAttribute(ReadAttributePtr attribute) : attribute_(std::move(attribute)) + TypedReadAttribute(ReadAttributePtr attribute) : TypedReadAttribute(*attribute) + { + owned_attribute_ = std::move(attribute); + BLI_assert(owned_attribute_); + } + + TypedReadAttribute(ReadAttribute &attribute) : attribute_(&attribute) { - BLI_assert(attribute_); BLI_assert(attribute_->cpp_type().is<T>()); } @@ -220,15 +227,22 @@ template<typename T> class TypedReadAttribute { } }; -/* This provides type safe access to an attribute. */ +/* This provides type safe access to an attribute. + * The underlying WriteAttribute is owned optionally. */ template<typename T> class TypedWriteAttribute { private: - WriteAttributePtr attribute_; + std::unique_ptr<WriteAttribute> owned_attribute_; + WriteAttribute *attribute_; public: - TypedWriteAttribute(WriteAttributePtr attribute) : attribute_(std::move(attribute)) + TypedWriteAttribute(WriteAttributePtr attribute) : TypedWriteAttribute(*attribute) + { + owned_attribute_ = std::move(attribute); + BLI_assert(owned_attribute_); + } + + TypedWriteAttribute(WriteAttribute &attribute) : attribute_(&attribute) { - BLI_assert(attribute_); BLI_assert(attribute_->cpp_type().is<T>()); } |