Token - Helper methods to better handle identifiers
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@ -69,4 +69,17 @@ impl Token {
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| TokenType::Number(_)
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)
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}
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/// Check whether a token is an identifier.
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pub fn is_identifier(&self) -> bool {
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matches!(self.token_type, TokenType::Identifier(_))
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}
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/// Get the name from an identifier token, returning an error otherwise.
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pub fn as_identifier(&self) -> Result<&str, &'static str> {
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match &self.token_type {
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TokenType::Identifier(name) => Ok(name),
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_ => Err("token is not an identifier"),
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}
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}
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}
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