ASTConcept.cpp
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//===--- ASTConcept.cpp - Concepts Related AST Data Structures --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file defines AST data structures related to concepts.
///
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTConcept.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/AST/TemplateBase.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/FoldingSet.h"
using namespace clang;
ASTConstraintSatisfaction::ASTConstraintSatisfaction(const ASTContext &C,
const ConstraintSatisfaction &Satisfaction):
NumRecords{Satisfaction.Details.size()},
IsSatisfied{Satisfaction.IsSatisfied} {
for (unsigned I = 0; I < NumRecords; ++I) {
auto &Detail = Satisfaction.Details[I];
if (Detail.second.is<Expr *>())
new (getTrailingObjects<UnsatisfiedConstraintRecord>() + I)
UnsatisfiedConstraintRecord{Detail.first,
UnsatisfiedConstraintRecord::second_type(
Detail.second.get<Expr *>())};
else {
auto &SubstitutionDiagnostic =
*Detail.second.get<std::pair<SourceLocation, StringRef> *>();
unsigned MessageSize = SubstitutionDiagnostic.second.size();
char *Mem = new (C) char[MessageSize];
memcpy(Mem, SubstitutionDiagnostic.second.data(), MessageSize);
auto *NewSubstDiag = new (C) std::pair<SourceLocation, StringRef>(
SubstitutionDiagnostic.first, StringRef(Mem, MessageSize));
new (getTrailingObjects<UnsatisfiedConstraintRecord>() + I)
UnsatisfiedConstraintRecord{Detail.first,
UnsatisfiedConstraintRecord::second_type(
NewSubstDiag)};
}
}
}
ASTConstraintSatisfaction *
ASTConstraintSatisfaction::Create(const ASTContext &C,
const ConstraintSatisfaction &Satisfaction) {
std::size_t size =
totalSizeToAlloc<UnsatisfiedConstraintRecord>(
Satisfaction.Details.size());
void *Mem = C.Allocate(size, alignof(ASTConstraintSatisfaction));
return new (Mem) ASTConstraintSatisfaction(C, Satisfaction);
}
void ConstraintSatisfaction::Profile(
llvm::FoldingSetNodeID &ID, const ASTContext &C,
const NamedDecl *ConstraintOwner, ArrayRef<TemplateArgument> TemplateArgs) {
ID.AddPointer(ConstraintOwner);
ID.AddInteger(TemplateArgs.size());
for (auto &Arg : TemplateArgs)
Arg.Profile(ID, C);
}