Author: d0k
Date: Thu Oct 26 03:36:20 2017
New Revision: 316652
URL: http://llvm.org/viewvc/llvm-project?rev=316652&view=rev
Log:
[clangd] Don't crash on empty textDocument/didChange.
Found by clangd-fuzzer.
Modified:
clang-tools-extra/trunk/clangd/ClangdLSPServer.cpp
clang-tools-extra/trunk/test/clangd/protocol.test
Modified: clang-tools-extra/trunk/clangd/ClangdLSPServer.cpp
URL:
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clangd/ClangdLSPServer.cpp?rev=316652&r1=316651&r2=316652&view=diff
==============================================================================
--- clang-tools-extra/trunk/clangd/ClangdLSPServer.cpp (original)
+++ clang-tools-extra/trunk/clangd/ClangdLSPServer.cpp Thu Oct 26 03:36:20 2017
@@ -73,6 +73,8 @@ void ClangdLSPServer::onDocumentDidOpen(
void ClangdLSPServer::onDocumentDidChange(Ctx C,
DidChangeTextDocumentParams &Params)
{
+ if (Params.contentChanges.size() != 1)
+ return C.replyError(-32602, "can only apply one change at a time");
// We only support full syncing right now.
Server.addDocument(Params.textDocument.uri.file,
Params.contentChanges[0].text);
Modified: clang-tools-extra/trunk/test/clangd/protocol.test
URL:
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clangd/protocol.test?rev=316652&r1=316651&r2=316652&view=diff
==============================================================================
--- clang-tools-extra/trunk/test/clangd/protocol.test (original)
+++ clang-tools-extra/trunk/test/clangd/protocol.test Thu Oct 26 03:36:20 2017
@@ -26,6 +26,10 @@ Content-Length: 246
{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///main.cpp","languageId":"cpp","version":1,"text":"struct
fake { int a, bb, ccc; int f(int i, const float f) const; };\nint main() {\n
fake f;\n f.\n}\n"}}}
+Content-Length: 104
+
+{"jsonrpc":"2.0","method":"textDocument/didChange","params":{"textDocument":{"uri":"file:///main.cpp"}}}
+
Content-Type: application/vscode-jsonrpc; charset-utf-8
Content-Length: 146
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