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d20ca1f80b
This sets the 'requires instantiation' bit in a couple more cases, which doesn't really matter because the runtime already checks a few other conditions, such as the presence of resilient witnesses.
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
//===--- ConformanceDescription.h - Conformance record ----------*- 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 the ConformanceDescription type, which records a
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// conformance which needs to be emitted.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_IRGEN_CONFORMANCEDESCRIPTION_H
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#define SWIFT_IRGEN_CONFORMANCEDESCRIPTION_H
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namespace llvm {
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class Constant;
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}
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namespace swift {
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class SILWitnessTable;
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namespace irgen {
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/// The description of a protocol conformance, including its witness table
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/// and any additional information needed to produce the protocol conformance
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/// descriptor.
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class ConformanceDescription {
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public:
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/// The conformance itself.
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RootProtocolConformance *conformance;
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/// The witness table.
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SILWitnessTable *wtable;
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/// The witness table pattern, which is also a complete witness table
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/// when \c requiresSpecialization is \c false.
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llvm::Constant *pattern;
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/// The size of the witness table.
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const uint16_t witnessTableSize;
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/// The private size of the witness table, allocated
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const uint16_t witnessTablePrivateSize;
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/// Whether this witness table requires runtime specialization.
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const unsigned requiresSpecialization : 1;
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/// The instantiation function, to be run at the end of witness table
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/// instantiation.
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llvm::Constant *instantiationFn = nullptr;
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/// The resilient witnesses, if any.
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SmallVector<llvm::Constant *, 4> resilientWitnesses;
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ConformanceDescription(RootProtocolConformance *conformance,
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SILWitnessTable *wtable,
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llvm::Constant *pattern,
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uint16_t witnessTableSize,
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uint16_t witnessTablePrivateSize,
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bool requiresSpecialization)
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: conformance(conformance), wtable(wtable), pattern(pattern),
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witnessTableSize(witnessTableSize),
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witnessTablePrivateSize(witnessTablePrivateSize),
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requiresSpecialization(requiresSpecialization)
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{
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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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