diff options
Diffstat (limited to 'test/test-suite/strings.test.js')
-rw-r--r-- | test/test-suite/strings.test.js | 577 |
1 files changed, 577 insertions, 0 deletions
diff --git a/test/test-suite/strings.test.js b/test/test-suite/strings.test.js new file mode 100644 index 0000000..7003b89 --- /dev/null +++ b/test/test-suite/strings.test.js @@ -0,0 +1,577 @@ +"use strict"; + +const lua = require('../../src/lua.js'); +const lauxlib = require('../../src/lauxlib.js'); +const lualib = require('../../src/lualib.js'); +const {to_luastring} = require("../../src/fengaricore.js"); + +const checkerror = ` + local maxi, mini = math.maxinteger, math.mininteger + + local function checkerror (msg, f, ...) + local s, err = pcall(f, ...) + assert(not s and string.find(err, msg)) + end +`; + +test('[test-suite] strings: string comparisons', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert('alo' < 'alo1') + assert('' < 'a') + assert('alo\\0alo' < 'alo\\0b') + assert('alo\\0alo\\0\\0' > 'alo\\0alo\\0') + assert('alo' < 'alo\\0') + assert('alo\\0' > 'alo') + assert('\\0' < '\\1') + assert('\\0\\0' < '\\0\\1') + assert('\\1\\0a\\0a' <= '\\1\\0a\\0a') + assert(not ('\\1\\0a\\0b' <= '\\1\\0a\\0a')) + assert('\\0\\0\\0' < '\\0\\0\\0\\0') + assert(not('\\0\\0\\0\\0' < '\\0\\0\\0')) + assert('\\0\\0\\0' <= '\\0\\0\\0\\0') + assert(not('\\0\\0\\0\\0' <= '\\0\\0\\0')) + assert('\\0\\0\\0' <= '\\0\\0\\0') + assert('\\0\\0\\0' >= '\\0\\0\\0') + assert(not ('\\0\\0b' < '\\0\\0a\\0')) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: string.sub', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert('alo' < 'alo1') + assert('' < 'a') + assert('alo\\0alo' < 'alo\\0b') + assert('alo\\0alo\\0\\0' > 'alo\\0alo\\0') + assert('alo' < 'alo\\0') + assert('alo\\0' > 'alo') + assert('\\0' < '\\1') + assert('\\0\\0' < '\\0\\1') + assert('\\1\\0a\\0a' <= '\\1\\0a\\0a') + assert(not ('\\1\\0a\\0b' <= '\\1\\0a\\0a')) + assert('\\0\\0\\0' < '\\0\\0\\0\\0') + assert(not('\\0\\0\\0\\0' < '\\0\\0\\0')) + assert('\\0\\0\\0' <= '\\0\\0\\0\\0') + assert(not('\\0\\0\\0\\0' <= '\\0\\0\\0')) + assert('\\0\\0\\0' <= '\\0\\0\\0') + assert('\\0\\0\\0' >= '\\0\\0\\0') + assert(not ('\\0\\0b' < '\\0\\0a\\0')) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: string.find', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.find("123456789", "345") == 3) + a,b = string.find("123456789", "345") + assert(string.sub("123456789", a, b) == "345") + assert(string.find("1234567890123456789", "345", 3) == 3) + assert(string.find("1234567890123456789", "345", 4) == 13) + assert(string.find("1234567890123456789", "346", 4) == nil) + assert(string.find("1234567890123456789", ".45", -9) == 13) + assert(string.find("abcdefg", "\\0", 5, 1) == nil) + assert(string.find("", "") == 1) + assert(string.find("", "", 1) == 1) + assert(not string.find("", "", 2)) + assert(string.find('', 'aaa', 1) == nil) + assert(('alo(.)alo'):find('(.)', 1, 1) == 4) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: string.len and #', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.len("") == 0) + assert(string.len("\\0\\0\\0") == 3) + assert(string.len("1234567890") == 10) + + assert(#"" == 0) + assert(#"\\0\\0\\0" == 3) + assert(#"1234567890" == 10) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: string.byte/string.char', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.byte("a") == 97) + assert(string.byte("\\xe4") > 127) + assert(string.byte(string.char(255)) == 255) + assert(string.byte(string.char(0)) == 0) + assert(string.byte("\\0") == 0) + assert(string.byte("\\0\\0alo\\0x", -1) == string.byte('x')) + assert(string.byte("ba", 2) == 97) + assert(string.byte("\\n\\n", 2, -1) == 10) + assert(string.byte("\\n\\n", 2, 2) == 10) + assert(string.byte("") == nil) + assert(string.byte("hi", -3) == nil) + assert(string.byte("hi", 3) == nil) + assert(string.byte("hi", 9, 10) == nil) + assert(string.byte("hi", 2, 1) == nil) + assert(string.char() == "") + assert(string.char(0, 255, 0) == "\\0\\255\\0") + assert(string.char(0, string.byte("\\xe4"), 0) == "\\0\\xe4\\0") + assert(string.char(string.byte("\\xe4l\\0óu", 1, -1)) == "\\xe4l\\0óu") + assert(string.char(string.byte("\\xe4l\\0óu", 1, 0)) == "") + assert(string.char(string.byte("\\xe4l\\0óu", -10, 100)) == "\\xe4l\\0óu") + + assert(string.upper("ab\\0c") == "AB\\0C") + assert(string.lower("\\0ABCc%$") == "\\0abcc%$") + assert(string.rep('teste', 0) == '') + assert(string.rep('tés\\00tê', 2) == 'tés\\0têtés\\000tê') + assert(string.rep('', 10) == '') + + if string.packsize("i") == 4 then + -- result length would be 2^31 (int overflow) + checkerror("too large", string.rep, 'aa', (1 << 30)) + checkerror("too large", string.rep, 'a', (1 << 30), ',') + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: repetitions with separator', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.rep('teste', 0, 'xuxu') == '') + assert(string.rep('teste', 1, 'xuxu') == 'teste') + assert(string.rep('\\1\\0\\1', 2, '\\0\\0') == '\\1\\0\\1\\0\\0\\1\\0\\1') + assert(string.rep('', 10, '.') == string.rep('.', 9)) + assert(not pcall(string.rep, "aa", maxi // 2 + 10)) + assert(not pcall(string.rep, "", maxi // 2 + 10, "aa")) + + assert(string.reverse"" == "") + assert(string.reverse"\\0\\1\\2\\3" == "\\3\\2\\1\\0") + assert(string.reverse"\\0001234" == "4321\\0") + + for i=0,30 do assert(string.len(string.rep('a', i)) == i) end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: tostring', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(type(tostring(nil)) == 'string') + assert(type(tostring(12)) == 'string') + assert(string.find(tostring{}, 'table:')) + assert(string.find(tostring(print), 'function:')) + assert(#tostring('\\0') == 1) + assert(tostring(true) == "true") + assert(tostring(false) == "false") + assert(tostring(-1203) == "-1203") + assert(tostring(1203.125) == "1203.125") + assert(tostring(-0.5) == "-0.5") + assert(tostring(-32767) == "-32767") + if math.tointeger(2147483647) then -- no overflow? (32 bits) + assert(tostring(-2147483647) == "-2147483647") + end + if math.tointeger(4611686018427387904) then -- no overflow? (64 bits) + assert(tostring(4611686018427387904) == "4611686018427387904") + assert(tostring(-4611686018427387904) == "-4611686018427387904") + end + + if tostring(0.0) == "0.0" then -- "standard" coercion float->string + assert('' .. 12 == '12' and 12.0 .. '' == '12.0') + assert(tostring(-1203 + 0.0) == "-1203.0") + else -- compatible coercion + assert(tostring(0.0) == "0") + assert('' .. 12 == '12' and 12.0 .. '' == '12') + assert(tostring(-1203 + 0.0) == "-1203") + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: string.format', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + x = '"ílo"\\n\\\\' + assert(string.format('%q%s', x, x) == '"\\\\"ílo\\\\"\\\\\\n\\\\\\\\""ílo"\\n\\\\') + assert(string.format('%q', "\\0") == [["\\0"]]) + assert(load(string.format('return %q', x))() == x) + x = "\\0\\1\\0023\\5\\0009" + assert(load(string.format('return %q', x))() == x) + assert(string.format("\\0%c\\0%c%x\\0", string.byte("\\xe4"), string.byte("b"), 140) == + "\\0\\xe4\\0b8c\\0") + assert(string.format('') == "") + assert(string.format("%c",34)..string.format("%c",48)..string.format("%c",90)..string.format("%c",100) == + string.format("%c%c%c%c", 34, 48, 90, 100)) + assert(string.format("%s\\0 is not \\0%s", 'not be', 'be') == 'not be\\0 is not \\0be') + assert(string.format("%%%d %010d", 10, 23) == "%10 0000000023") + assert(tonumber(string.format("%f", 10.3)) == 10.3) + x = string.format('"%-50s"', 'a') + assert(#x == 52) + assert(string.sub(x, 1, 4) == '"a ') + + assert(string.format("-%.20s.20s", string.rep("%", 2000)) == + "-"..string.rep("%", 20)..".20s") + assert(string.format('"-%20s.20s"', string.rep("%", 2000)) == + string.format("%q", "-"..string.rep("%", 2000)..".20s")) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: %q', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + do + local function checkQ (v) + local s = string.format("%q", v) + local nv = load("return " .. s)() + assert(v == nv and math.type(v) == math.type(nv)) + end + checkQ("\\0\\0\\1\\255\\u{234}") + checkQ(math.maxinteger) + checkQ(math.mininteger) + checkQ(math.pi) + checkQ(0.1) + checkQ(true) + checkQ(nil) + checkQ(false) + checkerror("no literal", string.format, "%q", {}) + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: embedded zeros error', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.format("\\0%s\\0", "\\0\\0\\1") == "\\0\\0\\0\\1\\0") + checkerror("contains zeros", string.format, "%10s", "\\0") + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: format x tostring', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + assert(string.format("%s %s", nil, true) == "nil true") + assert(string.format("%s %.4s", false, true) == "false true") + assert(string.format("%.3s %.3s", false, true) == "fal tru") + local m = setmetatable({}, {__tostring = function () return "hello" end, + __name = "hi"}) + assert(string.format("%s %.10s", m, m) == "hello hello") + getmetatable(m).__tostring = nil -- will use '__name' from now on + assert(string.format("%.4s", m) == "hi: ") + + getmetatable(m).__tostring = function () return {} end + checkerror("'__tostring' must return a string", tostring, m) + + + assert(string.format("%x", 0.0) == "0") + assert(string.format("%02x", 0.0) == "00") + -- assert(string.format("%08X", 0xFFFFFFFF) == "FFFFFFFF") + assert(string.format("%+08d", 31501) == "+0031501") + assert(string.format("%+08d", -30927) == "-0030927") + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: longest number that can be formatted', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + do + local i = 1 + local j = 10000 + while i + 1 < j do -- binary search for maximum finite float + local m = (i + j) // 2 + if 10^m < math.huge then i = m else j = m end + end + assert(10^i < math.huge and 10^j == math.huge) + local s = string.format('%.20f', -(10^i)) -- TODO: %.99f not possible with sprintf.js + -- assert(string.len(s) >= i + 101) + assert(tonumber(s) == -(10^i)) + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test('[test-suite] strings: large numbers for format', () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + do -- assume at least 32 bits + local max, min = 0x7fffffff, -0x80000000 -- "large" for 32 bits + -- assert(string.sub(string.format("%8x", -1), -8) == "ffffffff") + assert(string.format("%x", max) == "7fffffff") + assert(string.sub(string.format("%x", min), -8) == "80000000") + assert(string.format("%d", max) == "2147483647") + assert(string.format("%d", min) == "-2147483648") + assert(string.format("%u", 0xffffffff) == "4294967295") + assert(string.format("%o", 0xABCD) == "125715") + + max, min = 0x7fffffffffffffff, -0x8000000000000000 + if max > 2.0^53 then -- only for 64 bits + assert(string.format("%x", (2^52 | 0) - 1) == "fffffffffffff") + assert(string.format("0x%8X", 0x8f000003) == "0x8F000003") + assert(string.format("%d", 2^53) == "9007199254740992") + assert(string.format("%i", -2^53) == "-9007199254740992") + assert(string.format("%x", max) == "7fffffffffffffff") + assert(string.format("%x", min) == "8000000000000000") + assert(string.format("%d", max) == "9223372036854775807") + assert(string.format("%d", min) == "-9223372036854775808") + assert(string.format("%u", ~(-1 << 64)) == "18446744073709551615") + assert(tostring(1234567890123) == '1234567890123') + end + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test("[test-suite] strings: 'format %a %A'", () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + do + local function matchhexa (n) + local s = string.format("%a", n) + -- result matches ISO C requirements + assert(string.find(s, "^%-?0x[1-9a-f]%.?[0-9a-f]*p[-+]?%d+$")) + assert(tonumber(s) == n) -- and has full precision + s = string.format("%A", n) + assert(string.find(s, "^%-?0X[1-9A-F]%.?[0-9A-F]*P[-+]?%d+$")) + assert(tonumber(s) == n) + end + for _, n in ipairs{0.1, -0.1, 1/3, -1/3, 1e30, -1e30, + -45/247, 1, -1, 2, -2, 3e-20, -3e-20} do + matchhexa(n) + end + + assert(string.find(string.format("%A", 0.0), "^0X0%.?0?P%+?0$")) + assert(string.find(string.format("%a", -0.0), "^%-0x0%.?0?p%+?0$")) + + if not _port then -- test inf, -inf, NaN, and -0.0 + assert(string.find(string.format("%a", 1/0), "^inf")) + assert(string.find(string.format("%A", -1/0), "^%-INF")) + assert(string.find(string.format("%a", 0/0), "^%-?nan")) + assert(string.find(string.format("%a", -0.0), "^%-0x0")) + end + + if not pcall(string.format, "%.3a", 0) then + (Message or print)("\\n >>> modifiers for format '%a' not available <<<\\n") + else + assert(string.find(string.format("%+.2A", 12), "^%+0X%x%.%x0P%+?%d$")) + assert(string.find(string.format("%.4A", -12), "^%-0X%x%.%x000P%+?%d$")) + end + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test("[test-suite] strings: errors in format", () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + local function check (fmt, msg) + checkerror(msg, string.format, fmt, 10) + end + + local aux = string.rep('0', 600) + check("%100.3d", "too long") + check("%1"..aux..".3d", "too long") + check("%1.100d", "too long") + check("%10.1"..aux.."004d", "too long") + check("%t", "invalid option") + check("%"..aux.."d", "repeated flags") + check("%d %d", "no value") + + + assert(load("return 1\\n--comment without ending EOL")() == 1) + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test("[test-suite] strings: table.concat", () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + checkerror("table expected", table.concat, 3) + assert(table.concat{} == "") + assert(table.concat({}, 'x') == "") + assert(table.concat({'\\0', '\\0\\1', '\\0\\1\\2'}, '.\\0.') == "\\0.\\0.\\0\\1.\\0.\\0\\1\\2") + local a = {}; for i=1,300 do a[i] = "xuxu" end + assert(table.concat(a, "123").."123" == string.rep("xuxu123", 300)) + assert(table.concat(a, "b", 20, 20) == "xuxu") + assert(table.concat(a, "", 20, 21) == "xuxuxuxu") + assert(table.concat(a, "x", 22, 21) == "") + assert(table.concat(a, "3", 299) == "xuxu3xuxu") + assert(table.concat({}, "x", maxi, maxi - 1) == "") + assert(table.concat({}, "x", mini + 1, mini) == "") + assert(table.concat({}, "x", maxi, mini) == "") + assert(table.concat({[maxi] = "alo"}, "x", maxi, maxi) == "alo") + assert(table.concat({[maxi] = "alo", [maxi - 1] = "y"}, "-", maxi - 1, maxi) + == "y-alo") + + assert(not pcall(table.concat, {"a", "b", {}})) + + a = {"a","b","c"} + assert(table.concat(a, ",", 1, 0) == "") + assert(table.concat(a, ",", 1, 1) == "a") + assert(table.concat(a, ",", 1, 2) == "a,b") + assert(table.concat(a, ",", 2) == "b,c") + assert(table.concat(a, ",", 3) == "c") + assert(table.concat(a, ",", 4) == "") + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +// TODO: os.setlocale NYI +test.skip("[test-suite] strings: locale", () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + if not _port then + + local locales = { "ptb", "pt_BR.iso88591", "ISO-8859-1" } + local function trylocale (w) + for i = 1, #locales do + if os.setlocale(locales[i], w) then + print(string.format("'%s' locale set to '%s'", w, locales[i])) + return locales[i] + end + end + print(string.format("'%s' locale not found", w)) + return false + end + + if trylocale("collate") then + assert("alo" < "álo" and "álo" < "amo") + end + + if trylocale("ctype") then + assert(string.gsub("áéíóú", "%a", "x") == "xxxxx") + assert(string.gsub("áÁéÉ", "%l", "x") == "xÁxÉ") + assert(string.gsub("áÁéÉ", "%u", "x") == "áxéx") + assert(string.upper"áÁé{xuxu}ção" == "ÁÁÉ{XUXU}ÇÃO") + end + + os.setlocale("C") + assert(os.setlocale() == 'C') + assert(os.setlocale(nil, "numeric") == 'C') + + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); + + +test("[test-suite] strings: bug in Lua 5.3.2: 'gmatch' iterator does not work across coroutines", () => { + let L = lauxlib.luaL_newstate(); + if (!L) throw Error("failed to create lua state"); + + let luaCode = ` + do + local f = string.gmatch("1 2 3 4 5", "%d+") + assert(f() == "1") + co = coroutine.wrap(f) + assert(co() == "2") + end + `; + lualib.luaL_openlibs(L); + if (lauxlib.luaL_loadstring(L, to_luastring(checkerror + luaCode)) === lua.LUA_ERRSYNTAX) + throw new SyntaxError(lua.lua_tojsstring(L, -1)); + lua.lua_call(L, 0, 0); +}); |