mirror of
https://github.com/neovim/neovim.git
synced 2025-11-04 09:44:31 +00:00
664 lines
25 KiB
Lua
664 lines
25 KiB
Lua
-- Test suite for testing interactions with API bindings
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local helpers = require('test.functional.helpers')(after_each)
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local Screen = require('test.functional.ui.screen')
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local clear = helpers.clear
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local eq = helpers.eq
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local insert = helpers.insert
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local exec_lua = helpers.exec_lua
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local feed = helpers.feed
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local pcall_err = helpers.pcall_err
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local matches = helpers.matches
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before_each(clear)
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describe('treesitter API', function()
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-- error tests not requiring a parser library
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it('handles missing language', function()
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eq("Error executing lua: .../language.lua: no parser for 'borklang' language, see :help treesitter-parsers",
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pcall_err(exec_lua, "parser = vim.treesitter.get_parser(0, 'borklang')"))
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-- actual message depends on platform
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matches("Error executing lua: Failed to load parser: uv_dlopen: .+",
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pcall_err(exec_lua, "parser = vim.treesitter.require_language('borklang', 'borkbork.so')"))
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eq("Error executing lua: .../language.lua: no parser for 'borklang' language, see :help treesitter-parsers",
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pcall_err(exec_lua, "parser = vim.treesitter.inspect_language('borklang')"))
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end)
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end)
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describe('treesitter API with C parser', function()
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local function check_parser()
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local status, msg = unpack(exec_lua([[ return {pcall(vim.treesitter.require_language, 'c')} ]]))
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if not status then
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if helpers.isCI() then
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error("treesitter C parser not found, required on CI: " .. msg)
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else
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pending('no C parser, skipping')
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end
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end
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return status
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end
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it('parses buffer', function()
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if not check_parser() then return end
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insert([[
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int main() {
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int x = 3;
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}]])
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exec_lua([[
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parser = vim.treesitter.get_parser(0, "c")
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tree = parser:parse()
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root = tree:root()
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lang = vim.treesitter.inspect_language('c')
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]])
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eq("<tree>", exec_lua("return tostring(tree)"))
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eq("<node translation_unit>", exec_lua("return tostring(root)"))
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eq({0,0,3,0}, exec_lua("return {root:range()}"))
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eq(1, exec_lua("return root:child_count()"))
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exec_lua("child = root:child(0)")
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eq("<node function_definition>", exec_lua("return tostring(child)"))
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eq({0,0,2,1}, exec_lua("return {child:range()}"))
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eq("function_definition", exec_lua("return child:type()"))
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eq(true, exec_lua("return child:named()"))
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eq("number", type(exec_lua("return child:symbol()")))
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eq({'function_definition', true}, exec_lua("return lang.symbols[child:symbol()]"))
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exec_lua("anon = root:descendant_for_range(0,8,0,9)")
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eq("(", exec_lua("return anon:type()"))
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eq(false, exec_lua("return anon:named()"))
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eq("number", type(exec_lua("return anon:symbol()")))
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eq({'(', false}, exec_lua("return lang.symbols[anon:symbol()]"))
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exec_lua("descendant = root:descendant_for_range(1,2,1,12)")
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eq("<node declaration>", exec_lua("return tostring(descendant)"))
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eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
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eq("(declaration type: (primitive_type) declarator: (init_declarator declarator: (identifier) value: (number_literal)))", exec_lua("return descendant:sexpr()"))
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eq(true, exec_lua("return child == child"))
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-- separate lua object, but represents same node
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eq(true, exec_lua("return child == root:child(0)"))
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eq(false, exec_lua("return child == descendant2"))
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eq(false, exec_lua("return child == nil"))
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eq(false, exec_lua("return child == tree"))
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feed("2G7|ay")
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exec_lua([[
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tree2 = parser:parse()
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root2 = tree2:root()
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descendant2 = root2:descendant_for_range(1,2,1,13)
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]])
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eq(false, exec_lua("return tree2 == tree1"))
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eq(false, exec_lua("return root2 == root"))
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eq("<node declaration>", exec_lua("return tostring(descendant2)"))
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eq({1,2,1,13}, exec_lua("return {descendant2:range()}"))
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-- orginal tree did not change
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eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
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-- unchanged buffer: return the same tree
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eq(true, exec_lua("return parser:parse() == tree2"))
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end)
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local test_text = [[
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void ui_refresh(void)
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{
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int width = INT_MAX, height = INT_MAX;
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bool ext_widgets[kUIExtCount];
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for (UIExtension i = 0; (int)i < kUIExtCount; i++) {
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ext_widgets[i] = true;
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}
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bool inclusive = ui_override();
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for (size_t i = 0; i < ui_count; i++) {
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UI *ui = uis[i];
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width = MIN(ui->width, width);
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height = MIN(ui->height, height);
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foo = BAR(ui->bazaar, bazaar);
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for (UIExtension j = 0; (int)j < kUIExtCount; j++) {
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ext_widgets[j] &= (ui->ui_ext[j] || inclusive);
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}
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}
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}]]
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it('allows to iterate over nodes children', function()
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if not check_parser() then return end
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insert(test_text);
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local res = exec_lua([[
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parser = vim.treesitter.get_parser(0, "c")
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func_node = parser:parse():root():child(0)
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res = {}
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for node, field in func_node:iter_children() do
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table.insert(res, {node:type(), field})
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end
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return res
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]])
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eq({
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{"primitive_type", "type"},
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{"function_declarator", "declarator"},
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{"compound_statement", "body"}
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}, res)
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end)
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it('allows to get a child by field', function()
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if not check_parser() then return end
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insert(test_text);
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local res = exec_lua([[
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parser = vim.treesitter.get_parser(0, "c")
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func_node = parser:parse():root():child(0)
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local res = {}
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for _, node in ipairs(func_node:field("type")) do
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table.insert(res, {node:type(), node:range()})
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end
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return res
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]])
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eq({{ "primitive_type", 0, 0, 0, 4 }}, res)
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local res_fail = exec_lua([[
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parser = vim.treesitter.get_parser(0, "c")
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return #func_node:field("foo") == 0
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]])
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assert(res_fail)
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end)
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local query = [[
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((call_expression function: (identifier) @minfunc (argument_list (identifier) @min_id)) (eq? @minfunc "MIN"))
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"for" @keyword
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(primitive_type) @type
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(field_expression argument: (identifier) @fieldarg)
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]]
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it('support query and iter by capture', function()
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if not check_parser() then return end
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insert(test_text)
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local res = exec_lua([[
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cquery = vim.treesitter.parse_query("c", ...)
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parser = vim.treesitter.get_parser(0, "c")
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tree = parser:parse()
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res = {}
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for cid, node in cquery:iter_captures(tree:root(), 0, 7, 14) do
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-- can't transmit node over RPC. just check the name and range
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table.insert(res, {cquery.captures[cid], node:type(), node:range()})
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end
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return res
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]], query)
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eq({
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{ "type", "primitive_type", 8, 2, 8, 6 },
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{ "keyword", "for", 9, 2, 9, 5 },
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{ "type", "primitive_type", 9, 7, 9, 13 },
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{ "minfunc", "identifier", 11, 12, 11, 15 },
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{ "fieldarg", "identifier", 11, 16, 11, 18 },
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{ "min_id", "identifier", 11, 27, 11, 32 },
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{ "minfunc", "identifier", 12, 13, 12, 16 },
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{ "fieldarg", "identifier", 12, 17, 12, 19 },
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{ "min_id", "identifier", 12, 29, 12, 35 },
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{ "fieldarg", "identifier", 13, 14, 13, 16 }
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}, res)
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end)
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it('support query and iter by match', function()
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if not check_parser() then return end
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insert(test_text)
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local res = exec_lua([[
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cquery = vim.treesitter.parse_query("c", ...)
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parser = vim.treesitter.get_parser(0, "c")
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tree = parser:parse()
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res = {}
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for pattern, match in cquery:iter_matches(tree:root(), 0, 7, 14) do
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-- can't transmit node over RPC. just check the name and range
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local mrepr = {}
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for cid,node in pairs(match) do
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table.insert(mrepr, {cquery.captures[cid], node:type(), node:range()})
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end
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table.insert(res, {pattern, mrepr})
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end
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return res
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]], query)
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eq({
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{ 3, { { "type", "primitive_type", 8, 2, 8, 6 } } },
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{ 2, { { "keyword", "for", 9, 2, 9, 5 } } },
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{ 3, { { "type", "primitive_type", 9, 7, 9, 13 } } },
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{ 4, { { "fieldarg", "identifier", 11, 16, 11, 18 } } },
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{ 1, { { "minfunc", "identifier", 11, 12, 11, 15 }, { "min_id", "identifier", 11, 27, 11, 32 } } },
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{ 4, { { "fieldarg", "identifier", 12, 17, 12, 19 } } },
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{ 1, { { "minfunc", "identifier", 12, 13, 12, 16 }, { "min_id", "identifier", 12, 29, 12, 35 } } },
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{ 4, { { "fieldarg", "identifier", 13, 14, 13, 16 } } }
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}, res)
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end)
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it('allow loading query with escaped quotes and capture them with `lua-match?` and `vim-match?`', function()
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if not check_parser() then return end
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insert('char* astring = "Hello World!";')
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local res = exec_lua([[
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cquery = vim.treesitter.parse_query("c", '((_) @quote (vim-match? @quote "^\\"$")) ((_) @quote (lua-match? @quote "^\\"$"))')
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parser = vim.treesitter.get_parser(0, "c")
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tree = parser:parse()
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res = {}
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for pattern, match in cquery:iter_matches(tree:root(), 0, 0, 1) do
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-- can't transmit node over RPC. just check the name and range
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local mrepr = {}
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for cid,node in pairs(match) do
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table.insert(mrepr, {cquery.captures[cid], node:type(), node:range()})
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end
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table.insert(res, {pattern, mrepr})
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end
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return res
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]])
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eq({
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{ 1, { { "quote", '"', 0, 16, 0, 17 } } },
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{ 2, { { "quote", '"', 0, 16, 0, 17 } } },
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{ 1, { { "quote", '"', 0, 29, 0, 30 } } },
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{ 2, { { "quote", '"', 0, 29, 0, 30 } } },
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}, res)
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end)
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it('allows to add predicates', function()
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insert([[
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int main(void) {
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return 0;
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}
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]])
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local custom_query = "((identifier) @main (#is-main? @main))"
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local res = exec_lua([[
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local query = require"vim.treesitter.query"
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local function is_main(match, pattern, bufnr, predicate)
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local node = match[ predicate[2] ]
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return query.get_node_text(node, bufnr)
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end
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local parser = vim.treesitter.get_parser(0, "c")
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query.add_predicate("is-main?", is_main)
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local query = query.parse_query("c", ...)
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local nodes = {}
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for _, node in query:iter_captures(parser:parse():root(), 0, 0, 19) do
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table.insert(nodes, {node:range()})
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end
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return nodes
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]], custom_query)
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eq({{0, 4, 0, 8}}, res)
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local res_list = exec_lua[[
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local query = require'vim.treesitter.query'
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local list = query.list_predicates()
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table.sort(list)
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return list
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]]
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eq({ 'contains?', 'eq?', 'is-main?', 'lua-match?', 'match?', 'vim-match?' }, res_list)
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end)
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it('supports highlighting', function()
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if not check_parser() then return end
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local hl_text = [[
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/// Schedule Lua callback on main loop's event queue
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static int nlua_schedule(lua_State *const lstate)
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{
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if (lua_type(lstate, 1) != LUA_TFUNCTION
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|| lstate != lstate) {
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lua_pushliteral(lstate, "vim.schedule: expected function");
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return lua_error(lstate);
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}
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LuaRef cb = nlua_ref(lstate, 1);
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multiqueue_put(main_loop.events, nlua_schedule_event,
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1, (void *)(ptrdiff_t)cb);
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return 0;
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}]]
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local hl_query = [[
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(ERROR) @ErrorMsg
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"if" @keyword
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"else" @keyword
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"for" @keyword
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"return" @keyword
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"const" @type
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"static" @type
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"struct" @type
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"enum" @type
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"extern" @type
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(string_literal) @string
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(number_literal) @number
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(char_literal) @string
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(type_identifier) @type
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((type_identifier) @Special (#eq? @Special "LuaRef"))
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(primitive_type) @type
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(sized_type_specifier) @type
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; Use lua regexes
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((identifier) @Identifier (#contains? @Identifier "lua_"))
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((identifier) @Constant (#lua-match? @Constant "^[A-Z_]+$"))
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((identifier) @Normal (#vim-match? @Constant "^lstate$"))
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((binary_expression left: (identifier) @WarningMsg.left right: (identifier) @WarningMsg.right) (#eq? @WarningMsg.left @WarningMsg.right))
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(comment) @comment
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]]
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local screen = Screen.new(65, 18)
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screen:attach()
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screen:set_default_attr_ids({
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[1] = {bold = true, foreground = Screen.colors.Blue1},
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[2] = {foreground = Screen.colors.Blue1},
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[3] = {bold = true, foreground = Screen.colors.SeaGreen4},
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[4] = {bold = true, foreground = Screen.colors.Brown},
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[5] = {foreground = Screen.colors.Magenta},
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[6] = {foreground = Screen.colors.Red},
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[7] = {bold = true, foreground = Screen.colors.SlateBlue},
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[8] = {foreground = Screen.colors.Grey100, background = Screen.colors.Red},
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[9] = {foreground = Screen.colors.Magenta, background = Screen.colors.Red},
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[10] = {foreground = Screen.colors.Red, background = Screen.colors.Red},
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[11] = {foreground = Screen.colors.Cyan4},
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})
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insert(hl_text)
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screen:expect{grid=[[
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/// Schedule Lua callback on main loop's event queue |
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static int nlua_schedule(lua_State *const lstate) |
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{ |
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if (lua_type(lstate, 1) != LUA_TFUNCTION |
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|| lstate != lstate) { |
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lua_pushliteral(lstate, "vim.schedule: expected function"); |
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return lua_error(lstate); |
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} |
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LuaRef cb = nlua_ref(lstate, 1); |
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multiqueue_put(main_loop.events, nlua_schedule_event, |
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1, (void *)(ptrdiff_t)cb); |
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return 0; |
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^} |
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{1:~ }|
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{1:~ }|
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]]}
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exec_lua([[
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local highlighter = vim.treesitter.highlighter
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local query = ...
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test_hl = highlighter.new(query, 0, "c")
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]], hl_query)
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screen:expect{grid=[[
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{2:/// Schedule Lua callback on main loop's event queue} |
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{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
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{ |
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{4:if} ({11:lua_type}(lstate, {5:1}) != {5:LUA_TFUNCTION} |
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|| {6:lstate} != {6:lstate}) { |
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{11:lua_pushliteral}(lstate, {5:"vim.schedule: expected function"}); |
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{4:return} {11:lua_error}(lstate); |
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} |
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{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
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multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
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{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
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{4:return} {5:0}; |
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^} |
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{1:~ }|
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{1:~ }|
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]]}
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feed("5Goc<esc>dd")
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screen:expect{grid=[[
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{2:/// Schedule Lua callback on main loop's event queue} |
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{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
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{ |
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{4:if} ({11:lua_type}(lstate, {5:1}) != {5:LUA_TFUNCTION} |
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|| {6:lstate} != {6:lstate}) { |
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{11:^lua_pushliteral}(lstate, {5:"vim.schedule: expected function"}); |
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{4:return} {11:lua_error}(lstate); |
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} |
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{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
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multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
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{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
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{4:return} {5:0}; |
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} |
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{1:~ }|
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{1:~ }|
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|
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]]}
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feed('7Go*/<esc>')
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screen:expect{grid=[[
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{2:/// Schedule Lua callback on main loop's event queue} |
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{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
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{ |
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{4:if} ({11:lua_type}(lstate, {5:1}) != {5:LUA_TFUNCTION} |
|
|
|| {6:lstate} != {6:lstate}) { |
|
|
{11:lua_pushliteral}(lstate, {5:"vim.schedule: expected function"}); |
|
|
{4:return} {11:lua_error}(lstate); |
|
|
{8:*^/} |
|
|
} |
|
|
|
|
|
{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
|
|
|
|
|
multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
|
|
{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
|
|
{4:return} {5:0}; |
|
|
} |
|
|
{1:~ }|
|
|
|
|
|
]]}
|
|
|
|
feed('3Go/*<esc>')
|
|
screen:expect{grid=[[
|
|
{2:/// Schedule Lua callback on main loop's event queue} |
|
|
{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
|
|
{ |
|
|
{2:/^*} |
|
|
{2: if (lua_type(lstate, 1) != LUA_TFUNCTION} |
|
|
{2: || lstate != lstate) {} |
|
|
{2: lua_pushliteral(lstate, "vim.schedule: expected function");} |
|
|
{2: return lua_error(lstate);} |
|
|
{2:*/} |
|
|
} |
|
|
|
|
|
{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
|
|
|
|
|
multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
|
|
{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
|
|
{4:return} {5:0}; |
|
|
{8:}} |
|
|
|
|
|
]]}
|
|
|
|
feed("gg$")
|
|
feed("~")
|
|
screen:expect{grid=[[
|
|
{2:/// Schedule Lua callback on main loop's event queu^E} |
|
|
{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
|
|
{ |
|
|
{2:/*} |
|
|
{2: if (lua_type(lstate, 1) != LUA_TFUNCTION} |
|
|
{2: || lstate != lstate) {} |
|
|
{2: lua_pushliteral(lstate, "vim.schedule: expected function");} |
|
|
{2: return lua_error(lstate);} |
|
|
{2:*/} |
|
|
} |
|
|
|
|
|
{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
|
|
|
|
|
multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
|
|
{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
|
|
{4:return} {5:0}; |
|
|
{8:}} |
|
|
|
|
|
]]}
|
|
|
|
|
|
feed("re")
|
|
screen:expect{grid=[[
|
|
{2:/// Schedule Lua callback on main loop's event queu^e} |
|
|
{3:static} {3:int} {11:nlua_schedule}({3:lua_State} *{3:const} lstate) |
|
|
{ |
|
|
{2:/*} |
|
|
{2: if (lua_type(lstate, 1) != LUA_TFUNCTION} |
|
|
{2: || lstate != lstate) {} |
|
|
{2: lua_pushliteral(lstate, "vim.schedule: expected function");} |
|
|
{2: return lua_error(lstate);} |
|
|
{2:*/} |
|
|
} |
|
|
|
|
|
{7:LuaRef} cb = {11:nlua_ref}(lstate, {5:1}); |
|
|
|
|
|
multiqueue_put(main_loop.events, {11:nlua_schedule_event}, |
|
|
{5:1}, ({3:void} *)({3:ptrdiff_t})cb); |
|
|
{4:return} {5:0}; |
|
|
{8:}} |
|
|
|
|
|
]]}
|
|
end)
|
|
|
|
it('inspects language', function()
|
|
if not check_parser() then return end
|
|
|
|
local keys, fields, symbols = unpack(exec_lua([[
|
|
local lang = vim.treesitter.inspect_language('c')
|
|
local keys, symbols = {}, {}
|
|
for k,_ in pairs(lang) do
|
|
keys[k] = true
|
|
end
|
|
|
|
-- symbols array can have "holes" and is thus not a valid msgpack array
|
|
-- but we don't care about the numbers here (checked in the parser test)
|
|
for _, v in pairs(lang.symbols) do
|
|
table.insert(symbols, v)
|
|
end
|
|
return {keys, lang.fields, symbols}
|
|
]]))
|
|
|
|
eq({fields=true, symbols=true}, keys)
|
|
|
|
local fset = {}
|
|
for _,f in pairs(fields) do
|
|
eq("string", type(f))
|
|
fset[f] = true
|
|
end
|
|
eq(true, fset["directive"])
|
|
eq(true, fset["initializer"])
|
|
|
|
local has_named, has_anonymous
|
|
for _,s in pairs(symbols) do
|
|
eq("string", type(s[1]))
|
|
eq("boolean", type(s[2]))
|
|
if s[1] == "for_statement" and s[2] == true then
|
|
has_named = true
|
|
elseif s[1] == "|=" and s[2] == false then
|
|
has_anonymous = true
|
|
end
|
|
end
|
|
eq({true,true}, {has_named,has_anonymous})
|
|
end)
|
|
it('allows to set simple ranges', function()
|
|
if not check_parser() then return end
|
|
|
|
insert(test_text)
|
|
|
|
local res = exec_lua([[
|
|
parser = vim.treesitter.get_parser(0, "c")
|
|
return { parser:parse():root():range() }
|
|
]])
|
|
|
|
eq({0, 0, 19, 0}, res)
|
|
|
|
-- The following sets the included ranges for the current parser
|
|
-- As stated here, this only includes the function (thus the whole buffer, without the last line)
|
|
local res2 = exec_lua([[
|
|
local root = parser:parse():root()
|
|
parser:set_included_ranges({root:child(0)})
|
|
parser.valid = false
|
|
return { parser:parse():root():range() }
|
|
]])
|
|
|
|
eq({0, 0, 18, 1}, res2)
|
|
end)
|
|
it("allows to set complex ranges", function()
|
|
if not check_parser() then return end
|
|
|
|
insert(test_text)
|
|
|
|
|
|
local res = exec_lua([[
|
|
parser = vim.treesitter.get_parser(0, "c")
|
|
query = vim.treesitter.parse_query("c", "(declaration) @decl")
|
|
|
|
local nodes = {}
|
|
for _, node in query:iter_captures(parser:parse():root(), 0, 0, 19) do
|
|
table.insert(nodes, node)
|
|
end
|
|
|
|
parser:set_included_ranges(nodes)
|
|
|
|
local root = parser:parse():root()
|
|
|
|
local res = {}
|
|
for i=0,(root:named_child_count() - 1) do
|
|
table.insert(res, { root:named_child(i):range() })
|
|
end
|
|
return res
|
|
]])
|
|
|
|
eq({
|
|
{ 2, 2, 2, 40 },
|
|
{ 3, 3, 3, 32 },
|
|
{ 4, 7, 4, 8 },
|
|
{ 4, 8, 4, 25 },
|
|
{ 8, 2, 8, 6 },
|
|
{ 8, 7, 8, 33 },
|
|
{ 9, 8, 9, 20 },
|
|
{ 10, 4, 10, 5 },
|
|
{ 10, 5, 10, 20 },
|
|
{ 14, 9, 14, 27 } }, res)
|
|
end)
|
|
end)
|