syntaxAlchemist/lib-laddertypes
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lexer: change num type to i64

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This commit is contained in:
Michael Sippel 2023-10-01 18:43:04 +02:00
parent e89e16af61
commit cb91fa52de
Signed by: senvas
GPG key ID: F96CF119C34B64A6
1 changed files with 3 additions and 3 deletions
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6
src/lexer.rs
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@ -5,7 +5,7 @@
pub enum LadderTypeToken { pub enum LadderTypeToken {
Symbol( String ), Symbol( String ),
Char( char ), Char( char ),
Num( u64 ), Num( i64 ),
Open, Open,
Close, Close,
Ladder, Ladder,
@ -26,7 +26,7 @@ pub enum LexError {
enum LexerState { enum LexerState {
Any, Any,
Sym( String ), Sym( String ),
Num( u64 ), Num( i64 ),
Char( Option<char> ) Char( Option<char> )
} }
@ -124,7 +124,7 @@ where It: Iterator<Item = char>
LexerState::Num(n) => { LexerState::Num(n) => {
if let Some(d) = c.to_digit(10) { if let Some(d) = c.to_digit(10) {
*n = (*n) * 10 + d as u64; *n = (*n) * 10 + d as i64;
} else { } else {
return Some(Err(LexError::InvalidDigit)); return Some(Err(LexError::InvalidDigit));
} }