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65 lines
2.0 KiB
65 lines
2.0 KiB
/*
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pybind11/options.h: global settings that are configurable at runtime.
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE file.
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*/
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#pragma once
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#include "common.h"
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NAMESPACE_BEGIN(pybind11)
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class options {
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public:
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// Default RAII constructor, which leaves settings as they currently are.
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options() : previous_state(global_state()) {}
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// Class is non-copyable.
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options(const options&) = delete;
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options& operator=(const options&) = delete;
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// Destructor, which restores settings that were in effect before.
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~options() {
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global_state() = previous_state;
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}
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// Setter methods (affect the global state):
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options& disable_user_defined_docstrings() & { global_state().show_user_defined_docstrings = false; return *this; }
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options& enable_user_defined_docstrings() & { global_state().show_user_defined_docstrings = true; return *this; }
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options& disable_function_signatures() & { global_state().show_function_signatures = false; return *this; }
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options& enable_function_signatures() & { global_state().show_function_signatures = true; return *this; }
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// Getter methods (return the global state):
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static bool show_user_defined_docstrings() { return global_state().show_user_defined_docstrings; }
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static bool show_function_signatures() { return global_state().show_function_signatures; }
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// This type is not meant to be allocated on the heap.
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void* operator new(size_t) = delete;
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private:
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struct state {
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bool show_user_defined_docstrings = true; //< Include user-supplied texts in docstrings.
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bool show_function_signatures = true; //< Include auto-generated function signatures in docstrings.
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};
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static state &global_state() {
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static state instance;
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return instance;
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}
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state previous_state;
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};
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NAMESPACE_END(pybind11)
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