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|
-- Functions to handle locals
-- Locals are a generalization of definition and scopes
-- its the way nvim-treesitter uses to "understand" the code
local api = vim.api
local ts = vim.treesitter
local queries = require'nvim-treesitter.query'
local parsers = require'nvim-treesitter.parsers'
local M = {
locals={}
}
function M.is_supported(lang)
return queries.get_query(lang, "locals") ~= nil
end
function M.collect_locals(bufnr)
local ft = api.nvim_buf_get_option(bufnr, "ft")
if ft then
local query = queries.get_query(ft, 'locals')
local parser = parsers.get_parser(bufnr)
if parser then
local root = parser:parse():root()
local start_row, _, end_row, _ = root:range()
local locals = {}
for prepared_match in queries.iter_prepared_matches(query, root, bufnr, start_row, end_row) do
table.insert(locals, prepared_match)
end
return locals
end
end
end
function M.on_lines(_, buf, _, firstline, lastline, new_lastline)
M.locals[buf] = M.collect_locals(buf)
end
function M.get_locals(bufnr)
return M.locals[bufnr or api.nvim_get_current_buf()] or {}
end
function M.get_definitions(bufnr)
local locals = M.get_locals(bufnr)
local defs = {}
for _, loc in ipairs(locals) do
if loc.definition then
table.insert(defs, {definition=loc.definition, kind=loc.kind})
end
end
return defs
end
function M.get_scopes(bufnr)
local locals = M.get_locals(bufnr)
local scopes = {}
for _, loc in ipairs(locals) do
if loc.scope then
table.insert(scopes, loc.scope)
end
end
return scopes
end
function M.get_references(bufnr)
local locals = M.get_locals(bufnr)
local refs = {}
for _, loc in ipairs(locals) do
if loc.reference then
table.insert(refs, loc.reference)
end
end
return refs
end
return M
|
