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fix(lsp): highlight active parameter in signature help #25663
Fixes #25662
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@ -476,7 +476,7 @@ function M.signature_help(_, result, ctx, config)
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vim.tbl_get(client.server_capabilities, 'signatureHelpProvider', 'triggerCharacters')
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local ft = vim.bo[ctx.bufnr].filetype
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local lines, hl = util.convert_signature_help_to_markdown_lines(result, ft, triggers)
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if vim.tbl_isempty(lines) then
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if not lines or vim.tbl_isempty(lines) then
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if config.silent ~= true then
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print('No signature help available')
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end
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@ -484,7 +484,9 @@ function M.signature_help(_, result, ctx, config)
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end
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local fbuf, fwin = util.open_floating_preview(lines, 'markdown', config)
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if hl then
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api.nvim_buf_add_highlight(fbuf, -1, 'LspSignatureActiveParameter', 0, unpack(hl))
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-- Highlight the second line if the signature is wrapped in a Markdown code block.
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local line = vim.startswith(lines[1], '```') and 1 or 0
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api.nvim_buf_add_highlight(fbuf, -1, 'LspSignatureActiveParameter', line, unpack(hl))
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end
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return fbuf, fwin
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end
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