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authorMathias Fussenegger <f.mathias@zignar.net>2024-09-13 19:57:04 +0200
committerMathias Fußenegger <mfussenegger@users.noreply.github.com>2024-09-13 22:34:49 +0200
commit8512f669f0e095df99e0456db11a0e0b5a2b0485 (patch)
tree85e8bdce410a78196f4736f6e11cb789257a43a6
parent755512ed60fe6c9b7fbd3bf57c827d938ff6d743 (diff)
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fix(lsp): handle nil bytes in strings
Problem: The LSP omnifunc can insert nil bytes, which when read in other places (like semantic token) could cause an error: semantic_tokens.lua:304: Vim:E976: Using a Blob as a String Solution: Use `#line` instead of `vim.fn.strlen(line)`. Both return UTF-8 bytes but the latter can't handle nil bytes. Completion candidates can currently insert nil bytes, if other parts of Alternative fix to https://github.com/neovim/neovim/pull/30359 Note that https://github.com/neovim/neovim/pull/30315 will avoid the insertion of nil bytes from the LSP omnifunc, but the change of this PR can more easily be backported.
-rw-r--r--runtime/lua/vim/lsp/util.lua4
1 files changed, 2 insertions, 2 deletions
diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua
index 09b97ac861..65f84e8f87 100644
--- a/runtime/lua/vim/lsp/util.lua
+++ b/runtime/lua/vim/lsp/util.lua
@@ -154,7 +154,7 @@ end
---@param encoding string utf-8|utf-16|utf-32| defaults to utf-16
---@return integer byte (utf-8) index of `encoding` index `index` in `line`
function M._str_byteindex_enc(line, index, encoding)
- local len = vim.fn.strlen(line)
+ local len = #line
if index > len then
-- LSP spec: if character > line length, default to the line length.
-- https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#position
@@ -167,7 +167,7 @@ function M._str_byteindex_enc(line, index, encoding)
if index then
return index
else
- return #line
+ return len
end
elseif encoding == 'utf-16' then
return vim.str_byteindex(line, index, true)