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54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===--- FunctionMetadataVisitor.h - CRTP for function metadata -*- 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 - 2025 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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// A CRTP class useful for laying out function metadata.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_IRGEN_FUNCTIONMETADATALAYOUT_H
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#define SWIFT_IRGEN_FUNCTIONMETADATALAYOUT_H
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namespace swift {
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namespace irgen {
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/// A CRTP class for laying out function metadata.
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///
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/// This produces an object corresponding to a FunctionTypeMetadata type.
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/// It does not itself doing anything special for metadata templates.
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template <class Impl> struct FunctionMetadataVisitor
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: public MetadataVisitor<Impl> {
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using super = MetadataVisitor<Impl>;
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protected:
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using super::asImpl;
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FunctionType *const Target;
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FunctionMetadataVisitor(IRGenModule &IGM, FunctionType *const target)
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: super(IGM), Target(target) {}
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public:
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void embeddedLayout() {
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// The embedded layout consists of:
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// -1 : vwt
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// 0 : metadata flags
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super::layout();
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}
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};
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} // end namespace irgen
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} // end namespace swift
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#endif
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