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fix(lsp): highlight active parameter in signature help #25663 

Fixes #25662
This commit is contained in:
Maria José Solano 2023-10-16 08:52:48 -07:00 committed by GitHub
parent c46a6c065e
commit 2eecb1b85d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
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6
runtime/lua/vim/lsp/handlers.lua
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@ -476,7 +476,7 @@ function M.signature_help(_, result, ctx, config)
vim.tbl_get(client.server_capabilities, 'signatureHelpProvider', 'triggerCharacters')
local ft = vim.bo[ctx.bufnr].filetype
local lines, hl = util.convert_signature_help_to_markdown_lines(result, ft, triggers)
if vim.tbl_isempty(lines) then
if not lines or vim.tbl_isempty(lines) then
if config.silent ~= true then
print('No signature help available')
end
@ -484,7 +484,9 @@ function M.signature_help(_, result, ctx, config)
end
local fbuf, fwin = util.open_floating_preview(lines, 'markdown', config)
if hl then
api.nvim_buf_add_highlight(fbuf, -1, 'LspSignatureActiveParameter', 0, unpack(hl))
-- Highlight the second line if the signature is wrapped in a Markdown code block.
local line = vim.startswith(lines[1], '```') and 1 or 0
api.nvim_buf_add_highlight(fbuf, -1, 'LspSignatureActiveParameter', line, unpack(hl))
end
return fbuf, fwin
end