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enh(generic-snmp): lexer carries numbers values

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This commit is contained in:
David Boucher 2025-04-14 16:59:46 +02:00
parent d11c4c3e89
commit 29d8949621
1 changed files with 12 additions and 8 deletions
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20
experimental/src/compute/lexer.rs
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@ -5,7 +5,7 @@ pub type Spanned<Tok, Loc, Error> = Result<(Loc, Tok, Loc), Error>;
#[derive(Debug, PartialEq)] #[derive(Debug, PartialEq)]
pub enum Tok { pub enum Tok {
Num, Num(f32),
Id, Id,
OpStar, OpStar,
OpSlash, OpSlash,
@ -57,7 +57,11 @@ impl<'input> Lexer<'input> {
str::from_utf8(&chars[start..end]).unwrap_or("Bad value") str::from_utf8(&chars[start..end]).unwrap_or("Bad value")
); );
self.offset = end; self.offset = end;
Some(Ok((start, Tok::Num, end))) let value = str::from_utf8(&chars[start..end])
.unwrap_or("Bad value")
.parse::<f32>()
.unwrap_or(0.0);
Some(Ok((start, Tok::Num(value), end)))
} }
fn identifier( fn identifier(
@ -147,9 +151,9 @@ mod Test {
fn test_lexer_num_id_num() { fn test_lexer_num_id_num() {
let input = "123 abc 456"; let input = "123 abc 456";
let mut lexer = Lexer::new(input); let mut lexer = Lexer::new(input);
assert_eq!(lexer.next(), Some(Ok((0, Tok::Num, 3)))); assert_eq!(lexer.next(), Some(Ok((0, Tok::Num(123_f32), 3))));
assert_eq!(lexer.next(), Some(Ok((4, Tok::Id, 7)))); assert_eq!(lexer.next(), Some(Ok((4, Tok::Id, 7))));
assert_eq!(lexer.next(), Some(Ok((8, Tok::Num, 11)))); assert_eq!(lexer.next(), Some(Ok((8, Tok::Num(456_f32), 11))));
assert_eq!(lexer.next(), None); assert_eq!(lexer.next(), None);
} }
@ -158,7 +162,7 @@ mod Test {
let input = "abc 123 def"; let input = "abc 123 def";
let mut lexer = Lexer::new(input); let mut lexer = Lexer::new(input);
assert_eq!(lexer.next(), Some(Ok((0, Tok::Id, 3)))); assert_eq!(lexer.next(), Some(Ok((0, Tok::Id, 3))));
assert_eq!(lexer.next(), Some(Ok((4, Tok::Num, 7)))); assert_eq!(lexer.next(), Some(Ok((4, Tok::Num(123_f32), 7))));
assert_eq!(lexer.next(), Some(Ok((8, Tok::Id, 11)))); assert_eq!(lexer.next(), Some(Ok((8, Tok::Id, 11))));
} }
@ -166,11 +170,11 @@ mod Test {
fn test_lexer_num_op() { fn test_lexer_num_op() {
let input = "1+2*3"; let input = "1+2*3";
let mut lexer = Lexer::new(input); let mut lexer = Lexer::new(input);
assert_eq!(lexer.next(), Some(Ok((0, Tok::Num, 1)))); assert_eq!(lexer.next(), Some(Ok((0, Tok::Num(1_f32), 1))));
assert_eq!(lexer.next(), Some(Ok((1, Tok::OpPlus, 2)))); assert_eq!(lexer.next(), Some(Ok((1, Tok::OpPlus, 2))));
assert_eq!(lexer.next(), Some(Ok((2, Tok::Num, 3)))); assert_eq!(lexer.next(), Some(Ok((2, Tok::Num(2_f32), 3))));
assert_eq!(lexer.next(), Some(Ok((3, Tok::OpStar, 4)))); assert_eq!(lexer.next(), Some(Ok((3, Tok::OpStar, 4))));
assert_eq!(lexer.next(), Some(Ok((4, Tok::Num, 5)))); assert_eq!(lexer.next(), Some(Ok((4, Tok::Num(3_f32), 5))));
assert_eq!(lexer.next(), None); assert_eq!(lexer.next(), None);
} }
} }