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68a846e761
Also, give each class hierarchy at least 8 bits for the 'Kind' field. In practice, no class hierarchy has more than 256 nodes, so this optimizees code generation to make isa/dyn_cast faster.
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
//===--- PatternNodes.def - Swift Pattern AST Metaprogramming ---*- 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 - 2017 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 macros used for macro-metaprogramming with patterns.
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//
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//===----------------------------------------------------------------------===//
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/// PATTERN(Id, Parent)
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/// The pattern's enumerator value is PatternKind::Id. The pattern's
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/// class name is Id##Pattern, and the name of its base class is Parent.
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#ifndef PATTERN
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# error Included PatternNodes.def without defining PATTERN!
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#endif
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/// REFUTABLE_PATTERN(Id, Parent)
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/// Matching this pattern can fail. These patterns cannot appear syntactically
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/// in variable declarations, assignments, or function declarations.
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#ifndef REFUTABLE_PATTERN
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# define REFUTABLE_PATTERN(Id, Parent) PATTERN(Id, Parent)
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#endif
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#ifndef LAST_PATTERN
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#define LAST_PATTERN(Id)
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#endif
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PATTERN(Paren, Pattern)
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PATTERN(Tuple, Pattern)
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PATTERN(Named, Pattern)
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PATTERN(Any, Pattern)
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PATTERN(Typed, Pattern)
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PATTERN(Var, Pattern)
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REFUTABLE_PATTERN(Is, Pattern)
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REFUTABLE_PATTERN(EnumElement, Pattern)
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REFUTABLE_PATTERN(OptionalSome, Pattern)
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REFUTABLE_PATTERN(Bool, Pattern)
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REFUTABLE_PATTERN(Expr, Pattern)
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LAST_PATTERN(Expr)
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#undef REFUTABLE_PATTERN
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#undef PATTERN
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#undef LAST_PATTERN
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