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Computes per-field abstract layout (offset, size, alignment, mangled name, bitwiseCopyable, isOpaque) for structs with both Clang-imported and Swift-native fields. This API will be used from the library-side to serialize layout information to binary modules.
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
//===--- AbstractLayout.h - Abstract type layout information ----*- C++ -*-===//
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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) 2014 - 2026 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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//
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// This file defines data structures for abstract type layout information,
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// used to encode the layout of hidden C types in .swiftmodule files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_AST_ABSTRACTLAYOUT_H
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#define SWIFT_AST_ABSTRACTLAYOUT_H
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#include <cstdint>
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#include <optional>
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#include <string>
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namespace swift {
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class NominalTypeDecl;
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struct AbstractTypeLayout {
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std::string mangledName;
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uint64_t size;
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uint64_t alignment;
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uint64_t stride;
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bool bitwiseCopyable;
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bool isOpaque;
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};
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std::optional<AbstractTypeLayout>
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computeClangAbstractLayout(const NominalTypeDecl *decl);
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} // namespace swift
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#endif // SWIFT_AST_ABSTRACTLAYOUT_H
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