token

Documentation

Index

• Constants
• type Token
• type TokenType
  • func LookupIdent(ident string) TokenType

Constants

const (
	ILLEGAL = "ILLEGAL"
	EOF     = "EOF"

	// identifier
	IDENT = "IDENT" // ex: add, foobar, x, y...
	INT   = "INT"   // ex: 1234

	// operator
	ASSIGN   = "="
	PLUS     = "+"
	MINUS    = "-"
	ASTERISK = "*"
	SLASH    = "/"

	EQ     = "=="
	NOT_EQ = "!="

	BANG = "!"

	LT = "<"
	GT = ">"

	// delimiter
	COMMA     = ","
	SEMICOLON = ";"

	LPAREN = "("
	RPAREN = ")"
	LBRACE = "{"
	RBRACE = "}"

	// keyword
	FUNCTION = "FUNCTION"
	LET      = "LET"
	TRUE     = "TRUE"
	FALSE    = "FALSE"
	IF       = "IF"
	ELSE     = "ELSE"
	RETURN   = "RETURN"
)

Types

type Token

type Token struct {
	Type    TokenType
	Literal string
}

type TokenType

type TokenType string

func LookupIdent

func LookupIdent(ident string) TokenType