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feat(treesitter): add ability to retreive a tree/node given a range

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This commit is contained in:
Quentin Rasmont
2022-04-30 10:43:26 +02:00
committed by bfredl
parent 733b2e12b8
commit 6b2d42eb03
2 changed files with 67 additions and 0 deletions
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29
test/functional/treesitter/language_spec.lua
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@@ -7,6 +7,7 @@ local exec_lua = helpers.exec_lua
local pcall_err = helpers.pcall_err
local matches = helpers.matches
local pending_c_parser = helpers.pending_c_parser
local insert = helpers.insert
before_each(clear)
@@ -84,5 +85,33 @@ describe('treesitter language API', function()
eq("Error executing lua: .../language.lua:0: no parser for 'borklang' language, see :help treesitter-parsers",
pcall_err(exec_lua, "new_parser = vim.treesitter.get_parser(0)"))
end)
it('retrieve the tree given a range', function ()
insert([[
int main() {
int x = 3;
}]])
exec_lua([[
langtree = vim.treesitter.get_parser(0, "c")
tree = langtree:tree_for_range({1, 3, 1, 3})
]])
eq('<node translation_unit>', exec_lua('return tostring(tree:root())'))
end)
it('retrieve the node given a range', function ()
insert([[
int main() {
int x = 3;
}]])
exec_lua([[
langtree = vim.treesitter.get_parser(0, "c")
node = langtree:named_node_for_range({1, 3, 1, 3})
]])
eq('<node primitive_type>', exec_lua('return tostring(node)'))
end)
end)