Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup fn
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*
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* An #MFContext is passed along with every call to a multi-function. Right now it does nothing,
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* but it can be used for the following purposes:
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* - Pass debug information up and down the function call stack.
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* - Pass reusable memory buffers to sub-functions to increase performance.
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* - Pass cached data to called functions.
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*/
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#include "BLI_utildefines.h"
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#include "BLI_map.hh"
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namespace blender::fn {
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class MFContext;
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class MFContextBuilder {
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private:
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Map<std::string, const void *> global_contexts_;
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friend MFContext;
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public:
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template<typename T> void add_global_context(std::string name, const T *context)
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{
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global_contexts_.add_new(std::move(name), static_cast<const void *>(context));
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}
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};
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class MFContext {
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private:
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MFContextBuilder &builder_;
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public:
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MFContext(MFContextBuilder &builder) : builder_(builder)
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{
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}
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template<typename T> const T *get_global_context(StringRef name) const
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{
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const void *context = builder_.global_contexts_.lookup_default_as(name, nullptr);
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/* TODO: Implement type checking. */
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return static_cast<const T *>(context);
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}
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};
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} // namespace blender::fn
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