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//===--- Comment.cpp - Comment AST node implementation --------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/Comment.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
namespace clang {
namespace comments {
const char *Comment::getCommentKindName() const {
switch (getCommentKind()) {
case NoCommentKind: return "NoCommentKind";
#define ABSTRACT_COMMENT(COMMENT)
#define COMMENT(CLASS, PARENT) \
case CLASS##Kind: \
return #CLASS;
#include "clang/AST/CommentNodes.inc"
#undef COMMENT
#undef ABSTRACT_COMMENT
}
llvm_unreachable("Unknown comment kind!");
}
void Comment::dump() const {
// It is important that Comment::dump() is defined in a different TU than
// Comment::dump(raw_ostream, SourceManager). If both functions were defined
// in CommentDumper.cpp, that object file would be removed by linker because
// none of its functions are referenced by other object files, despite the
// LLVM_ATTRIBUTE_USED.
dump(llvm::errs(), NULL);
}
void Comment::dump(SourceManager &SM) const {
dump(llvm::errs(), &SM);
}
namespace {
struct good {};
struct bad {};
template <typename T>
good implements_child_begin_end(Comment::child_iterator (T::*)() const) {
return good();
}
static inline bad implements_child_begin_end(
Comment::child_iterator (Comment::*)() const) {
return bad();
}
#define ASSERT_IMPLEMENTS_child_begin(function) \
(void) sizeof(good(implements_child_begin_end(function)))
static inline void CheckCommentASTNodes() {
#define ABSTRACT_COMMENT(COMMENT)
#define COMMENT(CLASS, PARENT) \
ASSERT_IMPLEMENTS_child_begin(&CLASS::child_begin); \
ASSERT_IMPLEMENTS_child_begin(&CLASS::child_end);
#include "clang/AST/CommentNodes.inc"
#undef COMMENT
#undef ABSTRACT_COMMENT
}
#undef ASSERT_IMPLEMENTS_child_begin
} // end unnamed namespace
Comment::child_iterator Comment::child_begin() const {
switch (getCommentKind()) {
case NoCommentKind: llvm_unreachable("comment without a kind");
#define ABSTRACT_COMMENT(COMMENT)
#define COMMENT(CLASS, PARENT) \
case CLASS##Kind: \
return static_cast<const CLASS *>(this)->child_begin();
#include "clang/AST/CommentNodes.inc"
#undef COMMENT
#undef ABSTRACT_COMMENT
}
llvm_unreachable("Unknown comment kind!");
}
Comment::child_iterator Comment::child_end() const {
switch (getCommentKind()) {
case NoCommentKind: llvm_unreachable("comment without a kind");
#define ABSTRACT_COMMENT(COMMENT)
#define COMMENT(CLASS, PARENT) \
case CLASS##Kind: \
return static_cast<const CLASS *>(this)->child_end();
#include "clang/AST/CommentNodes.inc"
#undef COMMENT
#undef ABSTRACT_COMMENT
}
llvm_unreachable("Unknown comment kind!");
}
bool TextComment::isWhitespaceNoCache() const {
for (StringRef::const_iterator I = Text.begin(), E = Text.end();
I != E; ++I) {
const char C = *I;
if (C != ' ' && C != '\n' && C != '\r' &&
C != '\t' && C != '\f' && C != '\v')
return false;
}
return true;
}
bool ParagraphComment::isWhitespaceNoCache() const {
for (child_iterator I = child_begin(), E = child_end(); I != E; ++I) {
if (const TextComment *TC = dyn_cast<TextComment>(*I)) {
if (!TC->isWhitespace())
return false;
} else
return false;
}
return true;
}
const char *ParamCommandComment::getDirectionAsString(PassDirection D) {
switch (D) {
case ParamCommandComment::In:
return "[in]";
case ParamCommandComment::Out:
return "[out]";
case ParamCommandComment::InOut:
return "[in,out]";
}
llvm_unreachable("unknown PassDirection");
}
void DeclInfo::fill() {
assert(!IsFilled);
// Set defaults.
Kind = FunctionKind;
IsTemplateDecl = false;
IsTemplateSpecialization = false;
IsTemplatePartialSpecialization = false;
IsInstanceMethod = false;
IsClassMethod = false;
ParamVars = ArrayRef<const ParmVarDecl *>();
TemplateParameters = NULL;
if (!ThisDecl) {
// Defaults are OK.
} else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ThisDecl)) {
Kind = FunctionKind;
ParamVars = ArrayRef<const ParmVarDecl *>(FD->param_begin(),
FD->getNumParams());
unsigned NumLists = FD->getNumTemplateParameterLists();
if (NumLists != 0) {
IsTemplateDecl = true;
IsTemplateSpecialization = true;
TemplateParameters =
FD->getTemplateParameterList(NumLists - 1);
}
if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
IsInstanceMethod = MD->isInstance();
IsClassMethod = !IsInstanceMethod;
}
} else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(ThisDecl)) {
Kind = FunctionKind;
ParamVars = ArrayRef<const ParmVarDecl *>(MD->param_begin(),
MD->param_size());
IsInstanceMethod = MD->isInstanceMethod();
IsClassMethod = !IsInstanceMethod;
} else if (const FunctionTemplateDecl *FTD =
dyn_cast<FunctionTemplateDecl>(ThisDecl)) {
Kind = FunctionKind;
IsTemplateDecl = true;
const FunctionDecl *FD = FTD->getTemplatedDecl();
ParamVars = ArrayRef<const ParmVarDecl *>(FD->param_begin(),
FD->getNumParams());
TemplateParameters = FTD->getTemplateParameters();
} else if (const ClassTemplateDecl *CTD =
dyn_cast<ClassTemplateDecl>(ThisDecl)) {
Kind = ClassKind;
IsTemplateDecl = true;
TemplateParameters = CTD->getTemplateParameters();
} else if (const ClassTemplatePartialSpecializationDecl *CTPSD =
dyn_cast<ClassTemplatePartialSpecializationDecl>(ThisDecl)) {
Kind = ClassKind;
IsTemplateDecl = true;
IsTemplatePartialSpecialization = true;
TemplateParameters = CTPSD->getTemplateParameters();
} else if (isa<ClassTemplateSpecializationDecl>(ThisDecl)) {
Kind = ClassKind;
IsTemplateDecl = true;
IsTemplateSpecialization = true;
} else if (isa<RecordDecl>(ThisDecl)) {
Kind = ClassKind;
} else if (isa<VarDecl>(ThisDecl) || isa<FieldDecl>(ThisDecl)) {
Kind = VariableKind;
} else if (isa<NamespaceDecl>(ThisDecl)) {
Kind = NamespaceKind;
} else if (isa<TypedefNameDecl>(ThisDecl)) {
Kind = TypedefKind;
} else if (const TypeAliasTemplateDecl *TAT =
dyn_cast<TypeAliasTemplateDecl>(ThisDecl)) {
Kind = TypedefKind;
IsTemplateDecl = true;
TemplateParameters = TAT->getTemplateParameters();
}
IsFilled = true;
}
} // end namespace comments
} // end namespace clang
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