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44 lines
566 B
Go
44 lines
566 B
Go
package token
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type Loc struct {
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Line int
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Col int
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Pos int
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File string
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}
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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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Loc Loc
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}
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var keywords = map[string]TokenType{
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"fn": Fn,
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}
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const (
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Illegal TokenType = "ILLEGAL"
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Eof TokenType = "EOF"
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Ident TokenType = "IDENT"
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Int TokenType = "INT"
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Semicolon = ";"
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Equal = "="
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OpenParen = "("
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CloseParen = ")"
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// Keywords
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Fn = "FN"
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)
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func LookupKeyword(literal string) TokenType {
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if value, ok := keywords[literal]; ok {
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return value
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}
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return Ident
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}
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