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f232af5535
Protocol name mangling didn’t always go through a path that allowed the use of standard substitutions. Enable standard substitutions for protocol name manglings where they make sense. Removes ~277k from the standard library binary size.
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
//===------------------------------------------------------------*- 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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#ifndef SWIFT_RUNTIME_SWIFT_HASHABLE_SUPPORT_H
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#define SWIFT_RUNTIME_SWIFT_HASHABLE_SUPPORT_H
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#include "swift/Runtime/Metadata.h"
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#include <stdint.h>
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namespace swift {
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namespace hashable_support {
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extern "C" const ProtocolDescriptor PROTOCOL_DESCR_SYM(SH);
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static constexpr auto &HashableProtocolDescriptor = PROTOCOL_DESCR_SYM(SH);
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struct HashableWitnessTable;
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/// Calls `Equatable.==` through a `Hashable` (not Equatable!) witness
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/// table.
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SWIFT_CC(swift) SWIFT_RUNTIME_STDLIB_INTERNAL
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bool _swift_stdlib_Hashable_isEqual_indirect(
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const void *lhsValue, const void *rhsValue, const Metadata *type,
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const HashableWitnessTable *wt);
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/// Calls `Hashable.hashValue.get` through a `Hashable` witness table.
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SWIFT_CC(swift) SWIFT_RUNTIME_STDLIB_INTERNAL
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intptr_t _swift_stdlib_Hashable_hashValue_indirect(
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const void *value, const Metadata *type, const HashableWitnessTable *wt);
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SWIFT_CC(swift) SWIFT_RUNTIME_STDLIB_INTERNAL
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void _swift_convertToAnyHashableIndirect(
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OpaqueValue *source, OpaqueValue *destination, const Metadata *sourceType,
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const HashableWitnessTable *sourceConformance);
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SWIFT_CC(swift) SWIFT_RUNTIME_STDLIB_INTERNAL
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bool _swift_anyHashableDownCastConditionalIndirect(
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OpaqueValue *source, OpaqueValue *destination, const Metadata *targetType);
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/// Find the base type that introduces the `Hashable` conformance.
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/// Because the provided type is known to conform to `Hashable`, this
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/// function always returns non-null.
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///
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/// - Precondition: `type` conforms to `Hashable` (not checked).
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const Metadata *findHashableBaseTypeOfHashableType(
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const Metadata *type);
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/// Find the base type that introduces the `Hashable` conformance.
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/// If `type` does not conform to `Hashable`, `nullptr` is returned.
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const Metadata *findHashableBaseType(const Metadata *type);
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} // namespace hashable_support
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} // namespace swift
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#endif
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