68 lines
2.4 KiB
Ruby
68 lines
2.4 KiB
Ruby
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#
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# Copyright (C) 2008-2010 Wayne Meissner
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#
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# This file is part of ruby-ffi.
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#
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of the Ruby FFI project nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#
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module FFI
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# This module is used to extend somes classes and give then a common API.
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#
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# Most of methods defined here must be overriden.
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module DataConverter
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# Get native type.
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#
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# @overload native_type(type)
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# @param [String, Symbol, Type] type
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# @return [Type]
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# Get native type from +type+.
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#
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# @overload native_type
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# @raise {NotImplementedError} This method must be overriden.
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def native_type(type = nil)
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if type
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@native_type = FFI.find_type(type)
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else
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native_type = @native_type
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unless native_type
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raise NotImplementedError, 'native_type method not overridden and no native_type set'
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end
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native_type
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end
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end
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# Convert to a native type.
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def to_native(value, ctx)
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value
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end
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# Convert from a native type.
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def from_native(value, ctx)
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value
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end
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end
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end
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