[Deprecation]: "vim.validate is deprecated. Feature will be removed in Nvim 1.0"

[leviouwendijk]

Context

visimatch.nvim is receiving a deprecation warning about the vim.validate function call.

:checkhealth vim.deprecated result:

- ⚠️ WARNING vim.validate is deprecated. Feature will be removed in Nvim 1.0
  - ADVICE:
    - use vim.validate(name, value, validator, optional_or_msg) instead.
    - stack traceback:
        /Users/leviouwendijk/.local/share/nvim/site/pack/packer/start/visimatch.nvim/lua/visimatch/init.lua:48
        /Users/leviouwendijk/.config/nvim/after/plugin/visimatch.lua:1

Which is in init.lua at line 46:

M.setup = function(opts)
    config = vim.tbl_extend("force", config, opts or {})
    vim.validate({
        hl_group          = { config.hl_group,          "string" },
        chars_lower_limit = { config.chars_lower_limit, "number" },
        lines_upper_limit = { config.lines_upper_limit, "number" },
        strict_spacing    = { config.strict_spacing,    "boolean" },
        buffers           = { config.buffers,           { "string", "function" } },
        case_insensitive  = { config.case_insensitive,  { "boolean", "table" } },
    })
end

Which should use a non-tabled version (example fix):

M.setup = function(opts)
    config = vim.tbl_extend("force", config, opts or {})
    vim.validate('hl_group', config.hl_group, 'string')
    vim.validate('chars_lower_limit', config.chars_lower_limit, 'number')
    vim.validate('lines_upper_limit', config.lines_upper_limit, 'number')
    vim.validate('strict_spacing', config.strict_spacing, 'boolean')
    vim.validate('buffers', config.buffers, function(x)
        return type(x) == 'string' or type(x) == 'function'
    end, 'string|function expected')
    vim.validate('case_insensitive',  config.case_insensitive, function(x)
        return type(x) == 'boolean' or type(x) == 'table'
    end, 'boolean|table expected')
end