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d9d49f72a3
This class formalizes the common case of the "trailing allocation" idiom we use frequently. I didn't spot any true bugs while making this change, but I did see places where we were using the wrong pointer type or casting through void* for no good reason. This will keep us honest. I'll get to the other libraries soon.
80 lines
2.3 KiB
C++
80 lines
2.3 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 - 2016 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 http://swift.org/LICENSE.txt for license information
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// See http://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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#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/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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ArrayRef<Substitution> substitutions) {
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size_t size = totalSizeToAlloc<Substitution>(substitutions.size());
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void *memory = ctx.Allocate(size, alignof(SpecializedDeclRef));
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return new (memory) SpecializedDeclRef(decl, substitutions);
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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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bool isFirst = true;
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for (const auto &sub : getSubstitutions()) {
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if (isFirst) {
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isFirst = false;
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} else {
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os << ", ";
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}
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os << sub.getReplacement().getString();
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if (sub.getConformances().size()) {
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os << '[';
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bool isFirst = true;
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for (auto &c : sub.getConformances()) {
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if (isFirst) {
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isFirst = false;
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} else {
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os << ", ";
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}
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if (c.isConcrete()) {
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c.getConcrete()->printName(os);
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} else {
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os << "abstract:" << c.getAbstract()->getName();
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}
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}
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os << ']';
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}
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}
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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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