tijani
44d9b2c7ec
git-svn-id: https://svn.tlawal.org/svn/monkey@1 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
46 lines
609 B
Go
46 lines
609 B
Go
package token
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type TokenType string
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type Token struct {
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Type TokenType
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Literal string
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}
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const (
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ILLEGAL = "ILLEGAL"
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EOF = "EOF"
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// Identifiers + Literals
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IDENT = "IDENT"
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INT = "INT"
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// Operators
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ASSIGN = "="
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PLUS = "+"
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// Delimiters
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COMMA = ","
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SEMICOLON = ";"
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LPAREN = "("
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RPAREN = ")"
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LBRACE = "{"
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RBRACE = "}"
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// Keywords
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FUNCTION = "FUNCTION"
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LET = "LET"
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)
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var keywords = map[string]TokenType{
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"fn": FUNCTION,
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"let": LET,
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}
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func LookupIdentifier(ident string) TokenType {
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if tok, ok := keywords[ident]; ok {
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return tok
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}
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return IDENT
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}
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