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treesitter: add parser on_lines callbacks

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Thomas Vigouroux
2020-07-08 22:47:57 +02:00
parent 0f7eaa3555
commit 341e139992
2 changed files with 33 additions and 13 deletions
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29
runtime/lua/vim/treesitter.lua
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@@ -15,19 +15,27 @@ function Parser:parse()
local changes
self.tree, changes = self._parser:parse_buf(self.bufnr)
self.valid = true
for _, cb in ipairs(self.change_cbs) do
cb(changes)
if not vim.tbl_isempty(changes) then
for _, cb in ipairs(self.changedtree_cbs) do
cb(changes)
end
end
return self.tree, changes
end
function Parser:_on_lines(bufnr, _, start_row, old_stop_row, stop_row, old_byte_size)
function Parser:_on_lines(bufnr, changed_tick, 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
self._parser:edit(start_byte,old_stop_byte,stop_byte,
start_row,0,old_stop_row,0,stop_row,0)
self.valid = false
for _, cb in ipairs(self.lines_cbs) do
cb(bufnr, changed_tick, start_row, old_stop_row, stop_row, old_byte_size)
end
end
function Parser:set_included_ranges(ranges)
@@ -80,7 +88,8 @@ function M.create_parser(bufnr, lang, id)
local self = setmetatable({bufnr=bufnr, lang=lang, valid=false}, Parser)
self._parser = vim._create_ts_parser(lang)
self.change_cbs = {}
self.changedtree_cbs = {}
self.lines_cbs = {}
self:parse()
-- TODO(bfredl): use weakref to self, so that the parser is free'd is no plugin is
-- using it.
@@ -99,7 +108,7 @@ function M.create_parser(bufnr, lang, id)
return self
end
function M.get_parser(bufnr, ft, cb)
function M.get_parser(bufnr, ft, buf_attach_cbs)
if bufnr == nil or bufnr == 0 then
bufnr = a.nvim_get_current_buf()
end
@@ -111,9 +120,15 @@ function M.get_parser(bufnr, ft, cb)
if parsers[id] == nil then
parsers[id] = M.create_parser(bufnr, ft, id)
end
if cb ~= nil then
table.insert(parsers[id].change_cbs, cb)
if buf_attach_cbs and buf_attach_cbs.on_changedtree then
table.insert(parsers[id].changedtree_cbs, buf_attach_cbs.on_changedtree)
end
if buf_attach_cbs and buf_attach_cbs.on_lines then
table.insert(parsers[id].lines_cbs, buf_attach_cbs.on_lines)
end
return parsers[id]
end