99 lines
3.1 KiB
Lua
99 lines
3.1 KiB
Lua
---@module 'tsql.token_select'
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---@class mod_token_select
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local M = {}
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---@class mod_ts_query
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M.ts_query = {}
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---@class TSQuery
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---@field query string the passthru for treesitter language parser
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M.TSQuery = {}
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M.TSQuery.__index = M.TSQuery
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---@type Ctor<{query: string}, TSQuery>
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function M.TSQuery.new(q)
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local self = q
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setmetatable(self, M.TSQuery)
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self.__index = M.TSQuery
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return self
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end
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---@class FileLoc
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---@field row_0 number 0-index row location
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---@field col_0 number 0-index col location
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M.FileLoc = {}
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M.FileLoc.__index = M.FileLoc
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---@type Ctor<{row_0: number, col_0: number}, FileLoc>
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function M.FileLoc.new(file_loc)
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assert(file_loc ~= nil)
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local self = file_loc
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setmetatable(self, M.FileLoc)
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self.__index = M.FileLoc
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return self
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end
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---@class QNode
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---@field start FileLoc
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---@field end_ex_col FileLoc
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---@field buf QBuf
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M.QNode = {}
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M.QNode.__index = M.QNode
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---@type Ctor<{start: FileLoc, end_ex_col: FileLoc, buf: QBuf}, QNode>
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function M.QNode.new(qnode)
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assert(qnode ~= nil)
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local self = qnode
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setmetatable(self, M.QNode)
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self.__index = M.QNode
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return self
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end
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---@param treesitter_query string the passthru for treesitter language
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---parser
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---@return TSQuery
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function M.ts_query.from_scm(treesitter_query)
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return M.TSQuery.new {
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query = treesitter_query
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}
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end
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---@param files QBuf[]
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---@return QNode[]
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function M.TSQuery:find_nodes(files)
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local result = {}
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for _, file in ipairs(files) do
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if file.lang == nil then
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goto continue
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end
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local sts, parser = pcall(vim.treesitter.get_parser, file.bufnr, file.filetype)
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if not sts then
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-- NOTE: no parser for language
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goto continue
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end
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local tree = parser:parse()[1]
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local root = tree:root()
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---@type Query
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local sts, query = pcall(vim.treesitter.query.parse, file.lang, self.query)
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if not sts then
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error("Error parsing query \"" .. self.query .. "\" on lang " .. file.lang .. " for file " .. file.path)
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end
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for _, match, _ in query:iter_matches(root, file.bufnr, 0, -1) do
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for id, node in pairs(match) do
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local start_row, start_col, end_row, end_col = node:range(false)
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local start = M.FileLoc.new { row_0 = start_row, col_0 = start_col }
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-- CORRECTNESS:
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-- :lua local parser = vim.treesitter.get_parser(0, 'lua'); local tree = parser:parse()[1]; local query = vim.treesitter.parse_query('lua', '(identifier) @name'); for id, node in query:iter_captures(tree:root(), 0) do local name = query.captures[id]; if name == 'name' and vim.treesitter.get_node_text(node, 0) == 'TSQuery' then local sr, sc, er, ec = node:range(); print(string.format("TSQuery Start: (%d, %d), End: (%d, %d)", sr, sc, er, ec)); end; end
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local end_ex_col = M.FileLoc.new { row_0 = end_row, col_0 = end_col }
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local qnode = M.QNode.new { buf = file, start = start, end_ex_col = end_ex_col }
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table.insert(result, qnode)
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end
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end
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::continue::
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end
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return result
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end
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return M
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