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47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
//===--- NameLookup.cpp - Name lookup utilities ---------------------------===//
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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) 2021 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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#include "NameLookup.h"
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#include "swift/AST/Decl.h"
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#include "swift/AST/Module.h"
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#include "llvm/ADT/SmallVector.h"
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#include <algorithm>
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using namespace swift;
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using namespace rewriting;
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void
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swift::rewriting::lookupConcreteNestedType(
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NominalTypeDecl *decl,
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Identifier name,
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SmallVectorImpl<TypeDecl *> &concreteDecls) {
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SmallVector<ValueDecl *, 2> foundMembers;
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decl->getParentModule()->lookupQualified(
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decl, DeclNameRef(name),
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NL_QualifiedDefault | NL_OnlyTypes | NL_ProtocolMembers,
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foundMembers);
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for (auto member : foundMembers)
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concreteDecls.push_back(cast<TypeDecl>(member));
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}
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TypeDecl *
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swift::rewriting::findBestConcreteNestedType(
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SmallVectorImpl<TypeDecl *> &concreteDecls) {
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if (concreteDecls.empty())
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return nullptr;
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return *std::min_element(concreteDecls.begin(), concreteDecls.end(),
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[](TypeDecl *type1, TypeDecl *type2) {
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return TypeDecl::compare(type1, type2) < 0;
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});
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}
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