Hi there. I'm having a problem with ccls indexing of dependencies. I have generated compile commands for my project, including commands for header files, using cmake and compdb. I see all the header files of my project in my compile_commands file, as well as the header files I am using from other libraries that I depend on. I have added the include directions of these libraries in my .ccls located in my project root. Everything works inside files directly inside my project. If I go to the definition of a symbol located in a dependency header file, ccls creates a .ccls-cache in the include directory of my dependency. ccls is unable to give me completions and the ability to go-to-definition from within the external library header file, even though those symbols can be accessed from header files inside my project. I am assuming this is because there is no .ccls located in the external library directory that defines -I directives to find the appropriate header files. Is there any way to make ccls use my project .ccls for external libraries as well? Especially given that the external header file in question actually has all include directives and compile options defined in my project compile_commands.json
Hi, I’m having some trouble getting ccls working on a toy project in emacs. ccls reports being unable to find header files, but if I use
lsp-find-definition on the includes, it goes to the files (for both local and system includes). Would be very grateful for any help, I have explained in more detail here: MaskRay/emacs-ccls#88.
Well, using two separate lines like suggested here works: https://github.com/MaskRay/ccls/wiki/Project-Setup#h--hpp
Hi, I'm using ccls and it doesn't find headers like iostream, cstdio, or cstdint. It says
ccls: cannot open file '/usr/local/Cellar/llvm/10.0.0_3/lib/clang/10.0.0/include/iostream': No such file or directory even though I set (setq ccls-args '(
"-init='{\"clang\":{\"extraArgs\":[\"-isystem\", \"/Library/Developer/CommandLineTools/usr/include/c++/v1\"]}}'")) as recommended on https://github.com/MaskRay/ccls/issues/191#issuecomment-453809905 . I'm using macOS Catalina with llvm installed via Homebrew.
@chmanie Did you managed to solve this problem? I have the same issue, ccls sees headers like iostream but it does not see headers from my project, it looks like it is related to fact that I have headers in hdr folder and source in src, when I move them out to one folder it works just fine. My .ccls config is similar to Example A but extended with header parsing, I have minimal example if needed
The headers are found for me but they were parsed as c headers
10:15:37 stdin pipeline.cc:552 V(2) receive RequestMessage: 2 initialize
10:15:37 ccls initialize.cc:274 I initialize in directory /u/drew/src/purity with uri file:///u/drew/src/purity
10:15:37 ccls initialize.cc:297 I initializationOptions: {"compilationDatabaseCommand":"","compilationDatabaseDirectory":"","cache":{"directory":".ccls-cache","format":"binary","hierarchicalPath":false,"retainInMemory":2},"capabilities":{"documentOnTypeFormattingProvider":{"firstTriggerCharacter":"}","moreTriggerCharacter":[]},"foldingRangeProvider":true,"workspace":{"workspaceFolders":{"supported":true,"changeNotifications":true}}},"clang":{"excludeArgs":[],"extraArgs":[],"pathMappings":[],"resourceDir":""},"client":{"diagnosticsRelatedInformation":true,"hierarchicalDocumentSymbolSupport":true,"linkSupport":true,"snippetSupport":true},"codeLens":{"localVariables":true},"completion":{"caseSensitivity":2,"detailedLabel":true,"dropOldRequests":true,"duplicateOptional":true,"filterAndSort":true,"include":{"blacklist":[],"maxPathSize":30,"suffixWhitelist":[".h",".hpp",".hh",".inc"],"whitelist":[]},"maxNum":100,"placeholder":true},"diagnostics":{"blacklist":[],"onChange":1000,"onOpen":0,"onSave":0,"spellChecking":true,"whitelist":[]},"highlight":{"largeFileSize":2097152,"lsRanges":false,"blacklist":[],"whitelist":[]},"index":{"blacklist":[],"comments":2,"initialNoLinkage":false,"initialBlacklist":[],"initialWhitelist":[],"maxInitializerLines":5,"multiVersion":0,"multiVersionBlacklist":[],"multiVersionWhitelist":[],"name":{"suppressUnwrittenScope":false},"onChange":false,"parametersInDeclarations":true,"threads":0,"trackDependency":2,"whitelist":[]},"request":{"timeout":5000},"session":{"maxNum":10},"workspaceSymbol":{"caseSensitivity":1,"maxNum":1000,"sort":true},"xref":{"maxNum":2000}}
10:15:37 ccls initialize.cc:329 I use -resource-dir=/usr/local/clang/lib/clang/10.0.0
10:15:37 ccls pipeline.cc:817 V(2) respond to RequestMessage: 2
A bunch of "load cache" messages, then the last one is
10:15:46 ccls pipeline.cc:474 I loaded project. Refresh semantic highlight for all working file.
Then the process exits
@arbernat https://github.com/MaskRay/ccls/wiki/Debugging#dump-lsp-requestsresponses To intercept early requests/responses, you can use a shell script wrapper
#!/bin/sh
exec strace -s999 -e read,write -o /tmp/strace.log -f path/to/ccls "$@"
@Sarna555 .cu files are indexed by default.
I'm on linux and here is my cmake file https://paste.debian.net/1155163/
it seems there is a typo here: https://github.com/MaskRay/emacs-ccls/blob/c2de88254142e73791da30e8564854ba4044b426/ccls-member-hierarchy.el#L50
location-uir instead of location-uri no ?
1 reply
I'm using ccls in emacs and would like to get full semantic highlighting as in the he screenshots at https://github.com/MaskRay/emacs-ccls . I have
(setq ccls-sem-highlight-method 'overlay)
(ccls-use-default-rainbow-sem-highlight) in my config, but I still only get the emacs standard syntax highlighting (no highlights for calls to member functions, for example). Does anyone know how to configure this?
with -Wno-c++17-extensions my g++ and clang++ can build without warnings, but vim/ccls keeps warning, not sure how to silence it