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tl.tl
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tl.tl
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local VERSION = "0.24.1+dev"
local stdlib = [=====[
do
global type any
global type thread
global type userdata
local enum FileStringMode
"a" "l" "L" "*a" "*l" "*L"
end
local enum FileNumberMode
"n" "*n"
end
local enum FileMode
"a" "l" "L" "*a" "*l" "*L" "n" "*n"
end
global record FILE
userdata
enum SeekWhence
"set" "cur" "end"
end
enum SetVBufMode
"no" "full" "line"
end
close: function(FILE): boolean, string, number
flush: function(FILE)
lines: function(FILE): (function(): (string))
lines: function(FILE, FileNumberMode...): (function(): (number...))
lines: function(FILE, (number | FileStringMode)...): (function(): (string...))
lines: function(FILE, (number | FileMode)...): (function(): ((string | number)...))
lines: function(FILE, (number | string)...): (function(): (string...))
read: function(FILE): string
read: function(FILE, FileNumberMode...): number...
read: function(FILE, (number | FileStringMode)...): string...
read: function(FILE, (number | FileMode)...): ((string | number)...)
read: function(FILE, (number | string)...): (string...)
seek: function(FILE, ? SeekWhence, ? integer): integer, string
setvbuf: function(FILE, SetVBufMode, ? integer)
write: function(FILE, (string | number)...): FILE, string
metamethod __close: function(FILE)
end
global record coroutine
type Function = function(any...): any...
close: function(thread): boolean, string
create: function(Function): thread
isyieldable: function(): boolean
resume: function(thread, any...): boolean, any...
running: function(): thread, boolean
status: function(thread): string
wrap: function<F>(F): F
yield: function(any...): any...
end
global record debug
record GetInfoTable
name: string
namewhat: string
source: string
short_src: string
linedefined: integer
lastlinedefined: integer
what: string
currentline: integer
istailcall: boolean
nups: integer
nparams: integer
isvararg: boolean
func: any
activelines: {integer:boolean}
end
enum HookEvent
"call" "tail call" "return" "line" "count"
end
type HookFunction = function(HookEvent, integer)
type AnyFunction = function(any...):any...
debug: function()
gethook: function(? thread): HookFunction, integer
getinfo: function(AnyFunction | integer): GetInfoTable
getinfo: function(AnyFunction | integer, string): GetInfoTable
getinfo: function(thread, AnyFunction | integer, string): GetInfoTable
getlocal: function(thread, AnyFunction, integer): string
getlocal: function(thread, integer, integer): string, any
getlocal: function(AnyFunction, integer): string
getlocal: function(integer, integer): string, any
getmetatable: function<T>(T): metatable<T>
getregistry: function(): {any:any}
getupvalue: function(AnyFunction, integer): any
getuservalue: function(userdata, integer): any
sethook: function(thread, HookFunction, string, ? integer)
sethook: function(HookFunction, string, ? integer)
setlocal: function(thread, integer, integer, any): string
setlocal: function(integer, integer, any): string
setmetatable: function<T>(T, metatable<T>): T
setupvalue: function(AnyFunction, integer, any): string
setuservalue: function<U>(U, any, integer): U --[[U is userdata]]
traceback: function(thread, ? string, ? integer): string
traceback: function(? string, ? integer): string
upvalueid: function(AnyFunction, integer): userdata
upvaluejoin: function(AnyFunction, integer, AnyFunction, integer)
end
global record io
enum OpenMode
"r" "w" "a" "r+" "w+" "a+"
"rb" "wb" "ab" "r+b" "w+b" "a+b"
"*r" "*w" "*a" "*r+" "*w+" "*a+"
"*rb" "*wb" "*ab" "*r+b" "*w+b" "*a+b"
end
close: function(? FILE)
input: function(? FILE): FILE
flush: function()
lines: function(? string): (function(): (string))
lines: function(? string, FileNumberMode...): (function(): (number...))
lines: function(? string, (number | FileStringMode)...): (function(): (string...))
lines: function(? string, (number | FileMode)...): (function(): ((string | number)...))
lines: function(? string, (number | string)...): (function(): (string...))
open: function(string, ? OpenMode): FILE, string, integer
output: function(? FILE): FILE
popen: function(string, ? OpenMode): FILE, string
read: function(): string
read: function(FileNumberMode...): number...
read: function((number | FileStringMode)...): string...
read: function((number | FileMode)...): ((string | number)...)
read: function((number | string)...): (string...)
stderr: FILE
stdin: FILE
stdout: FILE
tmpfile: function(): FILE
type: function(any): string
write: function((string | number)...): FILE, string
end
global record math
type Numeric = number | integer
abs: function<N is Numeric>(N): N
acos: function(number): number
asin: function(number): number
atan: function(number, ? number): number
atan2: function(number, number): number
ceil: function(number): integer
cos: function(number): number
cosh: function(number): number
deg: function(number): number
exp: function(number): number
floor: function(number): integer
fmod: function(integer, integer): integer
fmod: function(number, number): number
frexp: function(number): number, integer
huge: number
ldexp: function(number, integer): number
log: function(number, ? number): number
log10: function(number): number
max: function(integer...): integer
max: function((number | integer)...): number
max: function<T>(T...): T
max: function(any...): any
maxinteger: integer --[[needs_compat]]
min: function(integer...): integer
min: function((number | integer)...): number
min: function<T>(T...): T
min: function(any...): any
mininteger: integer --[[needs_compat]]
modf: function(number): integer, number
pi: number
pow: function(number, number): number
rad: function(number): number
random: function(integer, ? integer): integer
random: function(): number
randomseed: function(? integer, ? integer): integer, integer
sin: function(number): number
sinh: function(number): number
sqrt: function(number): number
tan: function(number): number
tanh: function(number): number
tointeger: function(any): integer
type: function(any): string
ult: function(number, number): boolean
end
global record metatable<T>
enum Mode
"k" "v" "kv"
end
__call: function(T, any...): any...
__mode: Mode
__name: string
__tostring: function(T): string
__pairs: function<K, V>(T): function(): (K, V)
__index: any --[[FIXME: function | table | anything with an __index metamethod]]
__newindex: any --[[FIXME: function | table | anything with an __index metamethod]]
__gc: function(T)
__close: function(T)
__add: function<A, B, C>(A, B): C
__sub: function<A, B, C>(A, B): C
__mul: function<A, B, C>(A, B): C
__div: function<A, B, C>(A, B): C
__idiv: function<A, B, C>(A, B): C
__mod: function<A, B, C>(A, B): C
__pow: function<A, B, C>(A, B): C
__band: function<A, B, C>(A, B): C
__bor: function<A, B, C>(A, B): C
__bxor: function<A, B, C>(A, B): C
__shl: function<A, B, C>(A, B): C
__shr: function<A, B, C>(A, B): C
__concat: function<A, B, C>(A, B): C
__len: function<A>(T): A
__unm: function<A>(T): A
__bnot: function<A>(T): A
__eq: function<A, B>(A, B): boolean
__lt: function<A, B>(A, B): boolean
__le: function<A, B>(A, B): boolean
end
global record os
record DateTable
year: integer
month: integer
day: integer
hour: integer
min: integer
sec: integer
wday: integer
yday: integer
isdst: boolean
end
enum DateMode
"!*t" "*t"
end
clock: function(): number
date: function(DateMode, ? number): DateTable
date: function(? string, ? number): string
difftime: function(integer, integer): number
execute: function(string): boolean, string, integer
exit: function(? (integer | boolean), ? boolean)
getenv: function(string): string
remove: function(string): boolean, string
rename: function(string, string): boolean, string
setlocale: function(string, ? string): string
time: function(? DateTable): integer
tmpname: function(): string
end
global record package
config: string
cpath: string
loaded: {string:any}
loadlib: function(string, string): (function)
loaders: { function(string): any, any }
path: string
preload: {any:any}
searchers: { function(string): any }
searchpath: function(string, string, ? string, ? string): string, string
end
global record string
byte: function(string, ? integer): integer
byte: function(string, integer, ? integer): integer...
char: function(integer...): string
dump: function(function(any...): (any), ? boolean): string
find: function(string, string, ? integer, ? boolean): integer, integer, string
format: function(string, any...): string
gmatch: function(string, string, ? integer): (function(): string...)
gsub: function(string, string, string, ? integer): string, integer
gsub: function(string, string, {string:string}, ? integer): string, integer
gsub: function(string, string, function(string...): ((string | integer | number)...), ? integer): string, integer
len: function(string): integer
lower: function(string): string
match: function(string, string, ? integer): string...
pack: function(string, any...): string
packsize: function(string): integer
rep: function(string, integer, ? string): string
reverse: function(string): string
sub: function(string, integer, ? integer): string
unpack: function(string, string, ? integer): any...
upper: function(string): string
end
global record table
type SortFunction = function<A>(A, A): boolean
record PackTable<A>
is {A}
n: integer
end
concat: function({(string | number)}, ? string, ? integer, ? integer): string
insert: function<A>({A}, integer, A)
insert: function<A>({A}, A)
move: function<A>({A}, integer, integer, integer, ? {A}): {A}
pack: function<T>(T...): PackTable<T> --[[needs_compat]]
pack: function(any...): {any:any} --[[needs_compat]]
remove: function<A>({A}, ? integer): A
sort: function<A>({A}, ? SortFunction<A>)
unpack: function<A>({A}, ? number, ? number): A... --[[needs_compat]]
unpack: function<A1, A2>({A1, A2}): A1, A2 --[[needs_compat]]
unpack: function<A1, A2, A3>({A1, A2, A3}): A1, A2, A3 --[[needs_compat]]
unpack: function<A1, A2, A3, A4>({A1, A2, A3, A4}): A1, A2, A3, A4 --[[needs_compat]]
unpack: function<A1, A2, A3, A4, A5>({A1, A2, A3, A4, A5}): A1, A2, A3, A4, A5 --[[needs_compat]]
end
global record utf8
char: function(number...): string
charpattern: string
codepoint: function(string, ? number, ? number, ? boolean): number...
codes: function(string, ? boolean): (function(string, ? number): (number, number))
len: function(string, ? number, ? number, ? boolean): number
offset: function(string, number, ? number): number
end
local record StandardLibrary
enum CollectGarbageCommand
"collect"
"count"
"stop"
"restart"
end
enum CollectGarbageSetValue
"step"
"setpause"
"setstepmul"
end
enum CollectGarbageIsRunning
"isrunning"
end
type LoadFunction = function(): string
enum LoadMode
"b" "t" "bt"
end
type XpcallMsghFunction = function(...: any): ()
arg: {string}
assert: function<A, B>(A, ? B, ...: any): A
collectgarbage: function(? CollectGarbageCommand): number
collectgarbage: function(CollectGarbageSetValue, integer): number
collectgarbage: function(CollectGarbageIsRunning): boolean
collectgarbage: function(string, ? number): (boolean | number)
dofile: function(? string): any...
error: function(? any, ? integer)
getmetatable: function<T>(T): metatable<T>
ipairs: function<A>({A}): (function():(integer, A))
load: function((string | LoadFunction), ? string, ? LoadMode, ? table): (function, string)
load: function((string | LoadFunction), ? string, ? string, ? table): (function, string)
loadfile: function(? string, ? string, ? {any:any}): (function, string)
next: function<K, V>({K:V}, ? K): (K, V)
next: function<A>({A}, ? integer): (integer, A)
pairs: function<K, V>({K:V}): (function():(K, V))
pcall: function(function(any...):(any...), any...): boolean, any...
print: function(any...)
rawequal: function(any, any): boolean
rawget: function<K, V>({K:V}, K): V
rawget: function({any:any}, any): any
rawget: function(any, any): any
rawlen: function<A>({A}): integer
rawset: function<K, V>({K:V}, K, V): {K:V}
rawset: function({any:any}, any, any): {any:any}
rawset: function(any, any, any): any
require: function(string): any
select: function<T>(integer, T...): T...
select: function(integer, any...): any...
select: function(string, any...): integer
setmetatable: function<T>(T, metatable<T>): T
tonumber: function(any): number
tonumber: function(any, integer): integer
tostring: function(any): string
type: function(any): string
warn: function(string, string...)
xpcall: function(function(any...):(any...), XpcallMsghFunction, any...): boolean, any...
_VERSION: string
end
global arg <const> = StandardLibrary.arg
global assert <const> = StandardLibrary.assert
global collectgarbage <const> = StandardLibrary.collectgarbage
global dofile <const> = StandardLibrary.dofile
global error <const> = StandardLibrary.error
global getmetatable <const> = StandardLibrary.getmetatable
global load <const> = StandardLibrary.load
global loadfile <const> = StandardLibrary.loadfile
global next <const> = StandardLibrary.next
global pairs <const> = StandardLibrary.pairs
global pcall <const> = StandardLibrary.pcall
global print <const> = StandardLibrary.print
global rawequal <const> = StandardLibrary.rawequal
global rawget <const> = StandardLibrary.rawget
global rawlen <const> = StandardLibrary.rawlen
global rawset <const> = StandardLibrary.rawset
global require <const> = StandardLibrary.require
global select <const> = StandardLibrary.select
global setmetatable <const> = StandardLibrary.setmetatable
global tostring <const> = StandardLibrary.tostring
global tonumber <const> = StandardLibrary.tonumber
global ipairs <const> = StandardLibrary.ipairs
global type <const> = StandardLibrary.type
global xpcall <const> = StandardLibrary.xpcall
global _VERSION <const> = StandardLibrary._VERSION
end
]=====]
local interface Where
f: string
y: integer
x: integer
end
local record Errors
filename: string
errors: {Error}
warnings: {Error}
unknown_dots: {string:boolean}
end
local record tl
enum LoadMode
"b"
"t"
"bt"
"cb"
"ct"
"cbt"
end
type LoadFunction = function(...:any): any...
enum GenCompat
"off"
"optional"
"required"
end
enum GenTarget
"5.1"
"5.3"
"5.4"
end
enum Feat
"on"
"off"
end
record GenerateOptions
preserve_indent: boolean
preserve_newlines: boolean
preserve_hashbang: boolean
end
record CheckOptions
feat_lax: Feat
feat_arity: Feat
gen_compat: GenCompat
gen_target: GenTarget
run_internal_compiler_checks: boolean
end
record Env
globals: {string:Variable}
modules: {string:Type}
module_filenames: {string:string}
loaded: {string:Result}
loaded_order: {string}
reporter: TypeReporter
keep_going: boolean
report_types: boolean
defaults: CheckOptions
end
record Result
filename: string
ast: Node
type: Type
syntax_errors: {Error}
type_errors: {Error}
gen_error: string
warnings: {Error}
env: Env
dependencies: {string:string} -- module name, file found
end
enum WarningKind
"unknown"
"unused"
"redeclaration"
"branch"
"hint"
"debug"
end
warning_kinds: {WarningKind:boolean}
record Error
y: integer
x: integer
msg: string
filename: string
tag: WarningKind
-- used temporarily for stable-sorting
i: integer
end
type errors = Errors
typecodes: {string:integer}
record TypeInfo
t: integer
str: string
file: string
x: integer
y: integer
ref: integer -- NOMINAL
fields: {string: integer} -- RECORD
enums: {string} -- ENUM
args: {{integer, string}} -- FUNCTION
rets: {{integer, string}} -- FUNCTION
vararg: boolean -- FUNCTION
varret: boolean -- FUNCTION
types: {integer} -- UNION, POLY, TUPLE
keys: integer -- MAP
values: integer -- MAP
elements: integer -- ARRAY
end
record TypeReport
type Symbol = {integer, integer, string, integer}
by_pos: {string: {integer: {integer: integer}}}
types: {integer: TypeInfo}
symbols: {Symbol}
symbols_by_file: {string: {Symbol}}
globals: {string: integer}
end
record EnvOptions
defaults: CheckOptions
predefined_modules: {string}
end
-- abstract type
interface Node
end
enum TokenKind
"hashbang"
"keyword"
"op"
"string"
"[" "]" "(" ")" "{" "}" "," ":" "." ";" "?"
"::"
"..."
"identifier"
"number"
"integer"
"pragma"
"pragma_identifier"
"$ERR$"
"$EOF$"
end
record Token
x: integer
y: integer
tk: string
kind: TokenKind
end
-----------------------------------------------------------------------------
-- Public API
-----------------------------------------------------------------------------
check: function(Node, ? string, ? CheckOptions, ? Env): Result, string
gen: function(string, ? Env, ? GenerateOptions): string, Result
generate: function(ast: Node, gen_target: GenTarget, opts?: GenerateOptions): string, string
get_token_at: function(tks: {Token}, y: integer, x: integer): string
lex: function(input: string, filename: string): {Token}, {Error}
load: function(string, ? string, ? LoadMode, ...: {any:any}): LoadFunction, string
loader: function()
new_env: function(? EnvOptions): Env, string
parse: function(input: string, filename: string): Node, {Error}, {string}
parse_program: function(tokens: {Token}, errs: {Error}, filename?: string): Node, {string}
check_file: function(filename: string, env?: Env, fd?: FILE): (Result, string)
check_string: function(input: string, env?: Env, filename?: string): Result
search_module: function(module_name: string, search_dtl: boolean): string, FILE, {string}
symbols_in_scope: function(tr: TypeReport, y: integer, x: integer, filename: string): {string:integer}
target_from_lua_version: function(str: string): GenTarget
version: function(): string
-----------------------------------------------------------------------------
-- Deprecated, mantained for backwards compatibility:
-----------------------------------------------------------------------------
type CompatMode = GenCompat
type PrettyPrintOptions = GenerateOptions
type TargetMode = GenTarget
record TypeCheckOptions
lax: boolean
filename: string
module_name: string
gen_compat: tl.CompatMode
gen_target: tl.TargetMode
env: Env
run_internal_compiler_checks: boolean
end
init_env: function(? boolean, ? boolean | tl.CompatMode, ? tl.TargetMode, ? {string}): Env, string
pretty_print_ast: function(ast: Node, gen_target?: tl.TargetMode, mode?: boolean | tl.PrettyPrintOptions): string, string
process: function(filename: string, env?: Env, fd?: FILE): Result, string
process_string: function(input: string, is_lua: boolean, env: Env, filename: string, _module_name: string): Result
type_check: function(Node, TypeCheckOptions): Result, string
-----------------------------------------------------------------------------
-- Private data:
-----------------------------------------------------------------------------
package_loader_env: Env
load_envs: { {any:any} : Env }
end
local record TypeReporter
typeid_to_num: {integer: integer}
typename_to_num: {TypeName: integer}
next_num: integer
tr: TypeReport
get_typenum: function(self, Type): integer
end
local wk <total>: {tl.WarningKind:boolean} = {
["unknown"] = true,
["unused"] = true,
["redeclaration"] = true,
["branch"] = true,
["hint"] = true,
["debug"] = true,
}
tl.warning_kinds = wk
-- Implementation rationale:
-- * bit 31: (MSB) special ("any", "unknown", "invalid")
-- * "any" satisfies all Lua masks
-- * bits 30-27: if valid: other Teal types ("nominal", "poly", "union", "typevar")
-- * bits 24-26: reserved
-- * bits 20-23: abstract types ("interface")
-- * bits 16-19: if valid: Teal types ("array", "record", "map", "tuple", "enum") that map to a Lua type ("table", "string")
-- * bit 15: if not valid: value is unknown
-- * bits 8-14: reserved
-- * bits 0-7: (LSB) Lua types, one bit for each ("nil", "number", "boolean", "string", table, "function", "userdata", "thread")
-- * every valid value has a Lua type bit set
tl.typecodes = {
-- Lua types
NIL = 0x00000001,
NUMBER = 0x00000002,
BOOLEAN = 0x00000004,
STRING = 0x00000008,
TABLE = 0x00000010,
FUNCTION = 0x00000020,
USERDATA = 0x00000040,
THREAD = 0x00000080,
-- Teal types
INTEGER = 0x00010002,
ENUM = 0x00010004,
EMPTY_TABLE = 0x00000008,
ARRAY = 0x00010008,
RECORD = 0x00020008,
MAP = 0x00040008,
TUPLE = 0x00080008,
INTERFACE = 0x00100008,
SELF = 0x00200008,
POLY = 0x20000020,
UNION = 0x40000000,
-- Indirect types
NOMINAL = 0x10000000,
TYPE_VARIABLE = 0x08000000,
-- Special types
ANY = 0xffffffff,
UNKNOWN = 0x80008000,
INVALID = 0x80000000,
}
local type Env = tl.Env
local type EnvOptions = tl.EnvOptions
local type Error = tl.Error
local type Feat = tl.Feat
local type GenCompat = tl.GenCompat
local type GenTarget = tl.GenTarget
local type LoadFunction = tl.LoadFunction
local type LoadMode = tl.LoadMode
local type GenerateOptions = tl.GenerateOptions
local type Result = tl.Result
local type CheckOptions = tl.CheckOptions
local type Token = tl.Token
local type TokenKind = tl.TokenKind
local type TypeInfo = tl.TypeInfo
local type TypeReport = tl.TypeReport
local type WarningKind = tl.WarningKind
local DEFAULT_GEN_COMPAT <const>: GenCompat = "optional"
local DEFAULT_GEN_TARGET <const>: GenTarget = "5.3"
local enum Narrow
"narrow"
"narrowed_declaration"
"localizing"
end
local record Variable
t: Type
attribute: Attribute
needs_compat: boolean
narrowed_from: Type
is_narrowed: Narrow
declared_at: Node
is_func_arg: boolean
used: boolean
used_as_type: boolean
aliasing: Variable
implemented: {string:boolean}
end
--------------------------------------------------------------------------------
-- Compiler debugging
--------------------------------------------------------------------------------
local TL_DEBUG = os.getenv("TL_DEBUG")
local TL_DEBUG_FACTS = os.getenv("TL_DEBUG_FACTS")
local TL_DEBUG_MAXLINE = math.maxinteger
if TL_DEBUG_FACTS and not TL_DEBUG then
TL_DEBUG="1"
end
if TL_DEBUG then
local max <const> = assert(tonumber(TL_DEBUG), "TL_DEBUG was defined, but not a number")
if max < 0 then
TL_DEBUG_MAXLINE = math.tointeger(-max)
elseif max > 1 then
local count = 0
local skip: string = nil
debug.sethook(function(event: debug.HookEvent)
if event == "call" or event == "tail call" or event == "return" then
local info <const> = debug.getinfo(2)
if skip then
if info.name == skip and event == "return" then
skip = nil
end
return
elseif (info.name or "?"):match("^tl_debug_") and event == "call" then
skip = info.name
return
end
local name = info.name or "<anon>", info.currentline > 0 and "@" .. info.currentline or ""
io.stderr:write(name, " :: ", event as string, "\n")
io.stderr:flush()
else
count = count + 100
if count > max then
error("Too many instructions")
end
end
end, "cr", 100)
end
end
--------------------------------------------------------------------------------
-- Lexer
--------------------------------------------------------------------------------
do
local enum LexState
"start"
"any"
"identifier"
"got -"
"got --"
"got ."
"got .."
"got ="
"got ~"
"got ["
"got 0"
"got <"
"got >"
"got /"
"got :"
"got --["
"string single"
"string single got \\"
"string double"
"string double got \\"
"string long"
"string long got ]"
"comment short"
"comment long"
"comment long got ]"
"number dec"
"number decfloat"
"number hex"
"number hexfloat"
"number power"
"number powersign"
"pragma"
"pragma word"
"pragma any"
end
local last_token_kind <total>: {LexState:TokenKind} = {
["start"] = nil, -- never in a token
["any"] = nil, -- never in a token
["identifier"] = "identifier",
["got -"] = "op",
["got --"] = nil, -- drop comment
["got ."] = ".",
["got .."] = "op",
["got ="] = "op",
["got ~"] = "op",
["got ["] = "[",
["got 0"] = "number",
["got <"] = "op",
["got >"] = "op",
["got /"] = "op",
["got :"] = "op",
["got --["] = nil, -- drop comment
["string single"] = "$ERR$",
["string single got \\"] = "$ERR$",
["string double"] = "$ERR$",
["string double got \\"] = "$ERR$",
["string long"] = "$ERR$",
["string long got ]"] = "$ERR$",
["comment short"] = nil, -- drop comment
["comment long"] = "$ERR$",
["comment long got ]"] = "$ERR$",
["number dec"] = "integer",
["number decfloat"] = "number",
["number hex"] = "integer",
["number hexfloat"] = "number",
["number power"] = "number",
["number powersign"] = "$ERR$",
["pragma"] = nil, -- drop comment
["pragma any"] = nil, -- never in a token
["pragma word"] = "pragma_identifier", -- never in a token
}
local keywords: {string:boolean} = {
["and"] = true,
["break"] = true,
["do"] = true,
["else"] = true,
["elseif"] = true,
["end"] = true,
["false"] = true,
["for"] = true,
["function"] = true,
["goto"] = true,
["if"] = true,
["in"] = true,
["local"] = true,
["nil"] = true,
["not"] = true,
["or"] = true,
["repeat"] = true,
["return"] = true,
["then"] = true,
["true"] = true,
["until"] = true,
["while"] = true,
}
local lex_any_char_states: {string:LexState} = {
["\""] = "string double",
["'"] = "string single",
["-"] = "got -",
["."] = "got .",
["0"] = "got 0",
["<"] = "got <",
[">"] = "got >",
["/"] = "got /",
[":"] = "got :",
["="] = "got =",
["~"] = "got ~",
["["] = "got [",
}
for c = string.byte("a"), string.byte("z") do
lex_any_char_states[string.char(c)] = "identifier"
end
for c = string.byte("A"), string.byte("Z") do
lex_any_char_states[string.char(c)] = "identifier"
end
lex_any_char_states["_"] = "identifier"
for c = string.byte("1"), string.byte("9") do
lex_any_char_states[string.char(c)] = "number dec"
end
local lex_word: {string:boolean} = {}
for c = string.byte("a"), string.byte("z") do
lex_word[string.char(c)] = true
end
for c = string.byte("A"), string.byte("Z") do
lex_word[string.char(c)] = true
end
for c = string.byte("0"), string.byte("9") do
lex_word[string.char(c)] = true
end
lex_word["_"] = true
local lex_decimals: {string:boolean} = {}
for c = string.byte("0"), string.byte("9") do
lex_decimals[string.char(c)] = true
end
local lex_hexadecimals: {string:boolean} = {}
for c = string.byte("0"), string.byte("9") do
lex_hexadecimals[string.char(c)] = true