mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
2dbd6cc56b
Introduce two modes of bridging: * inline mode: this is basically how it worked so far. Using full C++ interop which allows bridging functions to be inlined. * pure mode: bridging functions are not inlined but compiled in a cpp file. This allows to reduce the C++ interop requirements to a minimum. No std/llvm/swift headers are imported. This change requires a major refactoring of bridging sources. The implementation of bridging functions go to two separate files: SILBridgingImpl.h and OptimizerBridgingImpl.h. Depending on the mode, those files are either included in the corresponding header files (inline mode), or included in the c++ file (pure mode). The mode can be selected with the BRIDGING_MODE cmake variable. By default it is set to the inline mode (= existing behavior). The pure mode is only selected in certain configurations to work around C++ interop issues: * In debug builds, to workaround a problem with LLDB's `po` command (rdar://115770255). * On windows to workaround a build problem.
52 lines
1.6 KiB
Swift
52 lines
1.6 KiB
Swift
//===--- VTable.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 VTable : CustomStringConvertible, NoReflectionChildren {
|
|
let bridged: BridgedVTable
|
|
|
|
public init(bridged: BridgedVTable) { self.bridged = bridged }
|
|
|
|
public struct Entry : CustomStringConvertible, NoReflectionChildren {
|
|
fileprivate let bridged: BridgedVTableEntry
|
|
|
|
public var function: Function { bridged.getImplementation().function }
|
|
|
|
public var description: String {
|
|
return String(taking: bridged.getDebugDescription())
|
|
}
|
|
}
|
|
|
|
public struct EntryArray : BridgedRandomAccessCollection {
|
|
fileprivate let base: BridgedVTableEntry
|
|
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())
|
|
}
|
|
}
|