Peek multiple tokens ahead
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3a207cf7a7
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@ -205,9 +205,16 @@ impl TokenHandler {
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fn peek_kind(&mut self) -> TokenKind {
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self.peek().kind
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}
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fn peek_kind_n(&mut self, n: usize) -> TokenKind {
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self.peek_n(n).kind
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}
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fn peek(&mut self) -> Token {
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self.tokens.get(self.idx).map(|t: &Token| { t.clone()}).unwrap_or(Token { kind: TokenKind::EOF, line_num: self.end_of_file.0, char_num: self.end_of_file.1})
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}
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fn peek_n(&mut self, n: usize) -> Token {
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self.tokens.get(self.idx + n).map(|t: &Token| { t.clone()}).unwrap_or(Token { kind: TokenKind::EOF, line_num: self.end_of_file.0, char_num: self.end_of_file.1})
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}
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fn next(&mut self) -> Token {
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self.idx += 1;
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self.tokens.get(self.idx - 1).map(|t: &Token| { t.clone() }).unwrap_or(Token { kind: TokenKind::EOF, line_num: self.end_of_file.0, char_num: self.end_of_file.1})
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