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72ddbebc08
This is a punt. They'll be unique, and they'll be per-context, but they'll be lazy and therefore not stable.
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
//===--- MacroDiscriminatorContext.h - Macro Discriminators -----*- 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 - 2020 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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#ifndef SWIFT_AST_MACRO_DISCRIMINATOR_CONTEXT_H
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#define SWIFT_AST_MACRO_DISCRIMINATOR_CONTEXT_H
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#include "swift/AST/Decl.h"
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#include "swift/AST/Expr.h"
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#include "llvm/ADT/PointerUnion.h"
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namespace swift {
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/// Describes the context of a macro expansion for the purpose of
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/// computing macro expansion discriminators.
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struct MacroDiscriminatorContext
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: public llvm::PointerUnion<DeclContext *, MacroExpansionExpr *,
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MacroExpansionDecl *> {
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using PointerUnion::PointerUnion;
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static MacroDiscriminatorContext getParentOf(MacroExpansionExpr *expansion);
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static MacroDiscriminatorContext getParentOf(MacroExpansionDecl *expansion);
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static MacroDiscriminatorContext getParentOf(
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SourceLoc loc, DeclContext *origDC
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);
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};
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}
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#endif // SWIFT_AST_MACRO_DISCRIMINATOR_CONTEXT_H
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