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192234415d
Replace two prominent uses of SubstitutionList, in ConcreteDeclRef and Witness, with SubstitutionMap. Deal with the myriad places where we now have substitution maps and need substitution lists (or vice versa) caused by this change. Overall, removes ~50 explicit uses of SubstitutionList (of ~400).
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===--- ConcreteDeclRef.cpp - Reference to a concrete decl ---------------===//
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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 implements the ConcreteDeclRef class, which provides a reference to
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// a declaration that is potentially specialized.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/AST/ASTContext.h"
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#include "swift/AST/ConcreteDeclRef.h"
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#include "swift/AST/Decl.h"
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#include "swift/AST/GenericSignature.h"
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#include "swift/AST/ProtocolConformance.h"
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#include "swift/AST/SubstitutionMap.h"
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#include "swift/AST/Types.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace swift;
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ConcreteDeclRef::SpecializedDeclRef *
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ConcreteDeclRef::SpecializedDeclRef::create(
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ASTContext &ctx, ValueDecl *decl,
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SubstitutionMap substitutions) {
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return new (ctx.getAllocator()) SpecializedDeclRef(decl,
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substitutions);
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}
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ConcreteDeclRef
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ConcreteDeclRef::getOverriddenDecl(ASTContext &ctx) const {
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auto *derivedDecl = getDecl();
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auto *baseDecl = derivedDecl->getOverriddenDecl();
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auto *baseSig = baseDecl->getInnermostDeclContext()
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->getGenericSignatureOfContext();
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auto *derivedSig = derivedDecl->getInnermostDeclContext()
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->getGenericSignatureOfContext();
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SubstitutionMap subs;
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if (baseSig) {
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Optional<SubstitutionMap> derivedSubMap;
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if (derivedSig)
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derivedSubMap = getSubstitutions();
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subs = SubstitutionMap::getOverrideSubstitutions(baseDecl, derivedDecl,
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derivedSubMap);
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}
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return ConcreteDeclRef(ctx, baseDecl, subs);
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}
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void ConcreteDeclRef::dump(raw_ostream &os) {
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if (!getDecl()) {
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os << "**NULL**";
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return;
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}
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getDecl()->dumpRef(os);
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// If specialized, dump the substitutions.
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if (isSpecialized()) {
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os << " [with ";
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getSubstitutions().dump(os);
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os << ']';
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}
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}
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void ConcreteDeclRef::dump() {
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dump(llvm::errs());
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}
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