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tree-sitter: use "module" pattern in lua source

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This commit is contained in:
Björn Linse 2019-09-28 14:04:05 +02:00
parent d5a69eb076
commit c844f986d4
1 changed files with 15 additions and 15 deletions
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30
runtime/lua/vim/treesitter.lua
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@ -1,13 +1,13 @@
local a = vim.api
local Parser = {}
Parser.__index = Parser
-- TODO(bfredl): currently we retain parsers for the lifetime of the buffer.
-- Consider use weak references to release parser if all plugins are done with
-- it.
local parsers = {}
local Parser = {}
Parser.__index = Parser
function Parser:parse()
if self.valid then
return self.tree
@ -17,7 +17,7 @@ function Parser:parse()
return self.tree
end
local function on_lines(self, bufnr, _, start_row, old_stop_row, stop_row, old_byte_size)
function Parser:_on_lines(bufnr, _, start_row, old_stop_row, stop_row, old_byte_size)
local start_byte = a.nvim_buf_get_offset(bufnr,start_row)
local stop_byte = a.nvim_buf_get_offset(bufnr,stop_row)
local old_stop_byte = start_byte + old_byte_size
@ -26,17 +26,22 @@ local function on_lines(self, bufnr, _, start_row, old_stop_row, stop_row, old_b
self.valid = false
end
local function create_parser(bufnr, ft, id)
local module = {
add_language=vim._ts_add_language,
inspect_language=vim._ts_inspect_language,
}
function module.create_parser(bufnr, ft, id)
if bufnr == 0 then
bufnr = a.nvim_get_current_buf()
end
local self = setmetatable({bufnr=bufnr, valid=false}, Parser)
self._parser = vim._create_ts_parser(ft)
self:parse()
-- TODO: use weakref to self, so that the parser is free'd is no plugin is
-- TODO(bfredl): use weakref to self, so that the parser is free'd is no plugin is
-- using it.
local function lines_cb(_, ...)
return on_lines(self, ...)
return self:_on_lines(...)
end
local detach_cb = nil
if id ~= nil then
@ -50,7 +55,7 @@ local function create_parser(bufnr, ft, id)
return self
end
local function get_parser(bufnr, ft)
function module.get_parser(bufnr, ft)
if bufnr == nil or bufnr == 0 then
bufnr = a.nvim_get_current_buf()
end
@ -60,14 +65,9 @@ local function get_parser(bufnr, ft)
local id = tostring(bufnr)..'_'..ft
if parsers[id] == nil then
parsers[id] = create_parser(bufnr, ft, id)
parsers[id] = module.create_parser(bufnr, ft, id)
end
return parsers[id]
end
return {
get_parser=get_parser,
create_parser=create_parser,
add_language=vim._ts_add_language,
inspect_language=vim._ts_inspect_language,
}
return module