71 lines
2.6 KiB
Swift
71 lines
2.6 KiB
Swift
// MIT License
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//
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// Copyright (c) 2017-2021 Wesley Wickwire and Tokamak contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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public struct PropertyInfo: Hashable {
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// Hashable/Equatable conformance is not synthesize for metatypes.
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public static func == (lhs: PropertyInfo, rhs: PropertyInfo) -> Bool {
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lhs.name == rhs.name && lhs.type == rhs.type && lhs.isVar == rhs.isVar && lhs.offset == rhs
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.offset && lhs.ownerType == rhs.ownerType
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}
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public func hash(into hasher: inout Hasher) {
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hasher.combine(name)
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hasher.combine(ObjectIdentifier(type))
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hasher.combine(isVar)
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hasher.combine(offset)
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hasher.combine(ObjectIdentifier(ownerType))
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}
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public let name: String
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public let type: Any.Type
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public let isVar: Bool
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public let offset: Int
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public let ownerType: Any.Type
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public func set<TObject>(value: Any, on object: inout TObject) {
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withValuePointer(of: &object) { pointer in
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set(value: value, pointer: pointer)
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}
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}
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public func set(value: Any, on object: inout Any) {
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withValuePointer(of: &object) { pointer in
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set(value: value, pointer: pointer)
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}
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}
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private func set(value: Any, pointer: UnsafeMutableRawPointer) {
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let valuePointer = pointer.advanced(by: offset)
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let sets = setters(type: type)
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sets.set(value: value, pointer: valuePointer)
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}
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public func get(from object: Any) -> Any {
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var object = object
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return withValuePointer(of: &object) { pointer in
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let valuePointer = pointer.advanced(by: offset)
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let gets = getters(type: type)
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return gets.get(from: valuePointer)
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}
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}
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}
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