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Within a dump of a DeclRef (or, more likely, a larger entity that includes one), the full multiline details of a substitution map are likely to not be hugely relevant, and just get in the way of understanding the interesting parts of the dump. Thus, this is a variant that is a single line and just includes the substitutions; the conformances (or, at least, the protocols involved) can be inferred from the generic signature combined with those substitutions. The style is controlled via a enum rather than a boolean, to avoid problems with trying to pass an indent like `map->dump(out, indent)`, where the integer indent coerces to a bool, rather than error. Fixes rdar://problem/40074968.
67 lines
2.1 KiB
C++
67 lines
2.1 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 ConcreteDeclRef::getOverriddenDecl() 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(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, SubstitutionMap::DumpStyle::Minimal);
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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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