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treesitter: separate tree and parser

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While this might sound silly, it is needed for further improvements.
This commit is contained in:
Thomas Vigouroux
2020-11-03 18:43:41 +01:00
parent eee0668818
commit c7d460c197
3 changed files with 70 additions and 70 deletions
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10
runtime/lua/vim/treesitter.lua
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@@ -18,11 +18,13 @@ Parser.__index = Parser
-- @returns If the tree changed with this call, the changed ranges
function Parser:parse()
if self.valid then
return self.tree
return self._tree_immutable
end
local changes
self.tree, changes = self._parser:parse(self:input_source())
self._tree, changes = self._parser:parse(self._tree, self:input_source())
self._tree_immutable = self._tree:copy()
self.valid = true
@@ -32,7 +34,7 @@ function Parser:parse()
end
end
return self.tree, changes
return self._tree_immutable, changes
end
function Parser:input_source()
@@ -45,7 +47,7 @@ function Parser:_on_bytes(bufnr, changed_tick,
new_row, new_col, new_byte)
local old_end_col = old_col + ((old_row == 0) and start_col or 0)
local new_end_col = new_col + ((new_row == 0) and start_col or 0)
self._parser:edit(start_byte,start_byte+old_byte,start_byte+new_byte,
self._tree:edit(start_byte,start_byte+old_byte,start_byte+new_byte,
start_row, start_col,
start_row+old_row, old_end_col,
start_row+new_row, new_end_col)