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swift-mirror/SwiftCompilerSources/Sources/SIL/SubstitutionMap.swift
Erik Eckstein 2dbd6cc56b SwiftCompilerSources: rework bridging
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.
2023-10-09 09:52:52 +02:00

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Swift

//===--- SubstitutionMap.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 SubstitutionMap {
public let bridged: BridgedSubstitutionMap
public init(_ bridged: BridgedSubstitutionMap) {
self.bridged = bridged
}
public init() {
self.bridged = BridgedSubstitutionMap()
}
public var isEmpty: Bool { bridged.isEmpty() }
public var replacementTypes: OptionalTypeArray {
let types = BridgedTypeArray.fromReplacementTypes(bridged)
return OptionalTypeArray(bridged: types)
}
}