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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.
66 lines
1.7 KiB
Swift
66 lines
1.7 KiB
Swift
//===--- SourceLoc.swift - SourceLoc bridging utilities ------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import ASTBridging
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public struct SourceLoc {
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/// Points into a source file.
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let locationInFile: UnsafePointer<UInt8>
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public init?(locationInFile: UnsafePointer<UInt8>?) {
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guard let locationInFile = locationInFile else {
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return nil
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}
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self.locationInFile = locationInFile
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}
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public init?(bridged: BridgedSourceLoc) {
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guard bridged.isValid() else {
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return nil
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}
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self.locationInFile = bridged.opaquePointer!
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}
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public var bridged: BridgedSourceLoc {
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.init(opaquePointer: locationInFile)
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}
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}
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extension SourceLoc {
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public func advanced(by n: Int) -> SourceLoc {
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SourceLoc(locationInFile: locationInFile.advanced(by: n))!
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}
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}
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extension Optional where Wrapped == SourceLoc {
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public var bridged: BridgedSourceLoc {
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self?.bridged ?? .init()
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}
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}
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public struct CharSourceRange {
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public let start: SourceLoc
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public let byteLength: UInt32
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public init(start: SourceLoc, byteLength: UInt32) {
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self.start = start
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self.byteLength = byteLength
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}
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public init?(bridgedStart: BridgedSourceLoc, byteLength: UInt32) {
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guard let start = SourceLoc(bridged: bridgedStart) else {
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return nil
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}
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self.init(start: start, byteLength: byteLength)
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}
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}
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