package lang

type tokenKind string

const (
	tokenEOF        tokenKind = "EOF"
	tokenIdent      tokenKind = "IDENT"
	tokenInt        tokenKind = "INT"
	tokenFloat      tokenKind = "FLOAT"
	tokenString     tokenKind = "STRING"
	tokenTrue       tokenKind = "TRUE"
	tokenFalse      tokenKind = "FALSE"
	tokenNull       tokenKind = "NULL"
	tokenImport     tokenKind = "IMPORT"
	tokenPackage    tokenKind = "PACKAGE"
	tokenClass      tokenKind = "CLASS"
	tokenData       tokenKind = "DATA"
	tokenInterface  tokenKind = "INTERFACE"
	tokenEnum       tokenKind = "ENUM"
	tokenMatch      tokenKind = "MATCH"
	tokenFun        tokenKind = "FUN"
	tokenSuspend    tokenKind = "SUSPEND"
	tokenOverride   tokenKind = "OVERRIDE"
	tokenPrivate    tokenKind = "PRIVATE"
	tokenVal        tokenKind = "VAL"
	tokenVar        tokenKind = "VAR"
	tokenIf         tokenKind = "IF"
	tokenElse       tokenKind = "ELSE"
	tokenWhile      tokenKind = "WHILE"
	tokenFor        tokenKind = "FOR"
	tokenIn         tokenKind = "IN"
	tokenReturn     tokenKind = "RETURN"
	tokenDefer      tokenKind = "DEFER"
	tokenTry        tokenKind = "TRY"
	tokenCatch      tokenKind = "CATCH"
	tokenThrow      tokenKind = "THROW"
	tokenLParen     tokenKind = "("
	tokenRParen     tokenKind = ")"
	tokenLBrace     tokenKind = "{"
	tokenRBrace     tokenKind = "}"
	tokenLBracket   tokenKind = "["
	tokenRBracket   tokenKind = "]"
	tokenComma      tokenKind = ","
	tokenDot        tokenKind = "."
	tokenColon      tokenKind = ":"
	tokenSemicolon  tokenKind = ";"
	tokenPlus       tokenKind = "+"
	tokenMinus      tokenKind = "-"
	tokenStar       tokenKind = "*"
	tokenSlash      tokenKind = "/"
	tokenPercent    tokenKind = "%"
	tokenBang       tokenKind = "!"
	tokenAssign     tokenKind = "="
	tokenPlusAssign tokenKind = "+="
	tokenEq         tokenKind = "=="
	tokenNeq        tokenKind = "!="
	tokenLt         tokenKind = "<"
	tokenLte        tokenKind = "<="
	tokenGt         tokenKind = ">"
	tokenGte        tokenKind = ">="
	tokenAnd        tokenKind = "&&"
	tokenAmp        tokenKind = "&"
	tokenAt         tokenKind = "@"
	tokenQuestion   tokenKind = "?"
	tokenSafeDot    tokenKind = "?."
	tokenDoubleBang tokenKind = "!!"
	tokenOr         tokenKind = "||"
	tokenArrow      tokenKind = "->"
)

var keywords = map[string]tokenKind{
	"fun":       tokenFun,
	"suspend":   tokenSuspend,
	"import":    tokenImport,
	"package":   tokenPackage,
	"class":     tokenClass,
	"data":      tokenData,
	"interface": tokenInterface,
	"enum":      tokenEnum,
	"match":     tokenMatch,
	"val":       tokenVal,
	"var":       tokenVar,
	"override":  tokenOverride,
	"private":   tokenPrivate,
	"if":        tokenIf,
	"else":      tokenElse,
	"while":     tokenWhile,
	"for":       tokenFor,
	"in":        tokenIn,
	"return":    tokenReturn,
	"defer":     tokenDefer,
	"try":       tokenTry,
	"catch":     tokenCatch,
	"throw":     tokenThrow,
	"true":      tokenTrue,
	"false":     tokenFalse,
	"null":      tokenNull,
}

type token struct {
	kind   tokenKind
	lexeme string
	pos    int
}