Module luis::ast

Structs

varlist ‘=’ explist

exp binop exp

block ::= {stat} [retstat]

elseif exp then block

for namelist in explist do block end

for Name ‘=’ exp ‘,’ exp [‘,’ exp] do block end

funcbody ::= ‘(’ [parlist] ‘)’ block end

funcname ::= Name {‘.’ Name} [‘:’ Name]

functioncall ::= prefixexp args | prefixexp ‘:’ Name args

function funcname funcbody

if exp then block {elseif exp then block} [else block] end

prefixexp ‘[’ exp ‘]’

LocalAssignment

local namelist [‘=’ explist]

LocalFunctionDef

local function Name funcbody

Name

parlist ::= namelist [‘,’ ‘…’] | ‘…’

prefixexp ‘.’ Name

repeat block until exp

TableConstructor

tableconstructor ::= ‘{’ [fieldlist] ‘}’

unop exp

while exp do block end

Enums

args ::= ‘(’ [explist] ‘)’ | tableconstructor | LiteralString

binop ::= ‘+’ | ‘-’ | ‘*’ | ‘/’ | ‘//’ | ‘^’ | ‘%’ | ‘&’ | ‘~’ | ‘|’ | ‘>>’ | ‘<<’ | ‘..’ | ‘<’ | ‘<=’ | ‘>’ | ‘>=’ | ‘==’ | ‘~=’ | and | or

exp ::= nil | false | true | Numeral | LiteralString | ‘…’ | functiondef | prefixexp | tableconstructor | exp binop exp | unop exp

field ::= ‘[’ exp ‘]’ ‘=’ exp | Name ‘=’ exp | exp

prefixexp ::= var | functioncall | ‘(’ exp ‘)’

stat ::= ‘;’ | varlist ‘=’ explist | functioncall | label | break | goto Name | do block end | while exp do block end | repeat block until exp | if exp then block {elseif exp then block} [else block] end | for Name ‘=’ exp ‘,’ exp [‘,’ exp] do block end | for namelist in explist do block end | function funcname funcbody | local function Name funcbody | local namelist [‘=’ explist]

unop ::= ‘-’ | not | ‘#’ | ‘~’

var ::= Name | prefixexp ‘[’ exp ‘]’ | prefixexp ‘.’ Name