================ @@ -0,0 +1,70 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +/// +/// \file +/// This file implements a libFuzzer harness for parseMarkdown(). It feeds +/// arbitrary bytes to the parser and recursively walks the returned node tree, +/// so every node and its children are exercised, not just the top-level nodes. +/// +//===----------------------------------------------------------------------===// + +#include "support/Markdown.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Support/Allocator.h" +#include "llvm/Support/Casting.h" +#include <cstddef> +#include <cstdint> + +using namespace clang::doc::markdown; + +static void visit(const MDNode *Node); + +static void visitAll(llvm::ArrayRef<MDNode *> Nodes) { + for (const MDNode *N : Nodes) + visit(N); +} + +// Recurses into a node's children so the whole tree is walked. +static void visit(const MDNode *Node) { + if (!Node) + return; + if (const auto *P = llvm::dyn_cast<ParagraphNode>(Node)) + visitAll(P->Children); + else if (const auto *H = llvm::dyn_cast<HeadingNode>(Node)) + visitAll(H->Children); + else if (const auto *E = llvm::dyn_cast<EmphasisNode>(Node)) + visitAll(E->Children); + else if (const auto *S = llvm::dyn_cast<StrongNode>(Node)) + visitAll(S->Children); + else if (const auto *Q = llvm::dyn_cast<BlockQuoteNode>(Node)) + visitAll(Q->Children); + else if (const auto *LI = llvm::dyn_cast<ListItemNode>(Node)) + visitAll(LI->Children); + else if (const auto *UL = llvm::dyn_cast<UnorderedListNode>(Node)) + for (const ListItemNode *Item : UL->Items) + visit(Item); + else if (const auto *OL = llvm::dyn_cast<OrderedListNode>(Node)) + for (const ListItemNode *Item : OL->Items) + visit(Item); + else if (const auto *T = llvm::dyn_cast<TableNode>(Node)) { + for (const TableCell &Cell : T->Header.Cells) + visitAll(Cell.Children); + for (const TableRow &Row : T->Body) + for (const TableCell &Cell : Row.Cells) ---------------- ilovepi wrote:
We're far more lax about this than other parts of the project. I think we roughly go about 50/50 on the single line bracing. My rule of thumb is: did I have to read it twice to make sure it was correct? Then braces, unless a reviewer complains. https://github.com/llvm/llvm-project/pull/202991 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
