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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 "llvm/Support/ErrorHandling.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!");
}
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::isWhitespace() 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::isWhitespace() 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;
}
}
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");
}
} // end namespace comments
} // end namespace clang
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