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//===--- WitnessTable.swift -----------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import SILBridging
public struct WitnessTable : CustomStringConvertible, NoReflectionChildren {
public let bridged: BridgedWitnessTable
public init(bridged: BridgedWitnessTable) { self.bridged = bridged }
public struct Entry : CustomStringConvertible, NoReflectionChildren {
fileprivate let bridged: BridgedWitnessTableEntry
public typealias Kind = BridgedWitnessTableEntry.Kind
public var kind: Kind {
return bridged.getKind()
}
public var methodFunction: Function? {
assert(kind == .Method)
return bridged.getMethodFunction().function
}
public var description: String {
return String(taking: bridged.getDebugDescription())
}
}
public struct EntryArray : BridgedRandomAccessCollection {
fileprivate let base: BridgedWitnessTableEntry
public let count: Int
public var startIndex: Int { return 0 }
public var endIndex: Int { return count }
public subscript(_ index: Int) -> Entry {
assert(index >= startIndex && index < endIndex)
return Entry(bridged: base.advanceBy(index))
}
}
public var entries: EntryArray {
let entries = bridged.getEntries()
return EntryArray(base: entries.base, count: entries.count)
}
public var description: String {
return String(taking: bridged.getDebugDescription())
}
}
public struct DefaultWitnessTable : CustomStringConvertible, NoReflectionChildren {
public let bridged: BridgedDefaultWitnessTable
public init(bridged: BridgedDefaultWitnessTable) { self.bridged = bridged }
public typealias Entry = WitnessTable.Entry
public typealias EntryArray = WitnessTable.EntryArray
public var entries: EntryArray {
let entries = bridged.getEntries()
return EntryArray(base: entries.base, count: entries.count)
}
public var description: String {
return String(taking: bridged.getDebugDescription())
}
}
extension OptionalBridgedWitnessTable {
public var witnessTable: WitnessTable? {
if let table = table {
return WitnessTable(bridged: BridgedWitnessTable(table: table))
}
return nil
}
}
extension OptionalBridgedDefaultWitnessTable {
public var defaultWitnessTable: DefaultWitnessTable? {
if let table = table {
return DefaultWitnessTable(bridged: BridgedDefaultWitnessTable(table: table))
}
return nil
}
}
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