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Diffstat (limited to 'lib/AST/TemplateBase.cpp')
-rw-r--r-- | lib/AST/TemplateBase.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/lib/AST/TemplateBase.cpp b/lib/AST/TemplateBase.cpp new file mode 100644 index 0000000..94e1ca1 --- /dev/null +++ b/lib/AST/TemplateBase.cpp @@ -0,0 +1,97 @@ +//===--- TemplateBase.cpp - Common template AST class implementation ------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements common classes used throughout C++ template +// representations. +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/FoldingSet.h" +#include "clang/AST/TemplateBase.h" +#include "clang/AST/DeclBase.h" +#include "clang/AST/Expr.h" +#include "clang/AST/TypeLoc.h" + +using namespace clang; + +//===----------------------------------------------------------------------===// +// TemplateArgument Implementation +//===----------------------------------------------------------------------===// + +/// \brief Construct a template argument pack. +void TemplateArgument::setArgumentPack(TemplateArgument *args, unsigned NumArgs, + bool CopyArgs) { + assert(isNull() && "Must call setArgumentPack on a null argument"); + + Kind = Pack; + Args.NumArgs = NumArgs; + Args.CopyArgs = CopyArgs; + if (!Args.CopyArgs) { + Args.Args = args; + return; + } + + // FIXME: Allocate in ASTContext + Args.Args = new TemplateArgument[NumArgs]; + for (unsigned I = 0; I != Args.NumArgs; ++I) + Args.Args[I] = args[I]; +} + +void TemplateArgument::Profile(llvm::FoldingSetNodeID &ID, + ASTContext &Context) const { + ID.AddInteger(Kind); + switch (Kind) { + case Null: + break; + + case Type: + getAsType().Profile(ID); + break; + + case Declaration: + ID.AddPointer(getAsDecl()? getAsDecl()->getCanonicalDecl() : 0); + break; + + case Integral: + getAsIntegral()->Profile(ID); + getIntegralType().Profile(ID); + break; + + case Expression: + getAsExpr()->Profile(ID, Context, true); + break; + + case Pack: + ID.AddInteger(Args.NumArgs); + for (unsigned I = 0; I != Args.NumArgs; ++I) + Args.Args[I].Profile(ID, Context); + } +} + +//===----------------------------------------------------------------------===// +// TemplateArgumentLoc Implementation +//===----------------------------------------------------------------------===// + +SourceRange TemplateArgumentLoc::getSourceRange() const { + switch (Argument.getKind()) { + case TemplateArgument::Expression: + return getSourceExpression()->getSourceRange(); + case TemplateArgument::Declaration: + return getSourceDeclExpression()->getSourceRange(); + case TemplateArgument::Type: + return getSourceDeclaratorInfo()->getTypeLoc().getFullSourceRange(); + case TemplateArgument::Integral: + case TemplateArgument::Pack: + case TemplateArgument::Null: + return SourceRange(); + } + + // Silence bonus gcc warning. + return SourceRange(); +} |