116 lines
3.8 KiB
Rust
116 lines
3.8 KiB
Rust
#![cfg(any(feature = "parse-floats", feature = "parse-integers"))]
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use lexical_util::iterator::{AsBytes, Bytes, DigitsIter, Iter};
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#[test]
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#[cfg(not(feature = "format"))]
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fn digits_iterator_test() {
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use lexical_util::format::STANDARD;
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type Digits<'a> = Bytes<'a, { STANDARD }>;
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assert!(Digits::IS_CONTIGUOUS);
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let digits = b"12345";
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let mut byte1 = Digits::new(digits);
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let mut byte2 = Digits::new(digits);
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assert!(byte1.integer_iter().eq(byte2.integer_iter()));
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let mut byte = digits.bytes::<{ STANDARD }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.as_slice(), &digits[..]);
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assert_eq!(iter.as_ptr(), digits.as_ptr());
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assert_eq!(iter.is_consumed(), false);
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assert_eq!(iter.is_buffer_empty(), false);
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assert_eq!(u32::from_le(iter.peek_u32().unwrap()), 0x34333231);
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assert_eq!(iter.buffer_length(), 5);
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assert_eq!(iter.cursor(), 0);
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assert_eq!(iter.current_count(), 0);
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unsafe {
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iter.step_by_unchecked(4);
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}
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assert_eq!(iter.buffer_length(), 5);
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assert_eq!(iter.cursor(), 4);
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assert_eq!(iter.current_count(), 4);
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assert_eq!(iter.peek(), Some(&b'5'));
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assert_eq!(iter.peek(), Some(&b'5'));
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assert_eq!(iter.next(), Some(&b'5'));
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assert_eq!(iter.peek(), None);
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assert_eq!(iter.next(), None);
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let mut byte = digits.bytes::<{ STANDARD }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.peek_u64(), None);
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assert_eq!(iter.nth(4).unwrap(), &b'5');
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assert_eq!(iter.as_slice(), &digits[digits.len()..]);
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assert_eq!(iter.as_ptr(), digits[digits.len()..].as_ptr());
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let mut byte = digits.bytes::<{ STANDARD }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.peek(), Some(&b'1'));
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unsafe {
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iter.step_unchecked();
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}
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assert_eq!(iter.peek(), Some(&b'2'));
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unsafe {
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iter.step_unchecked();
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}
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}
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#[test]
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#[cfg(feature = "format")]
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fn skip_iterator_test() {
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use core::num;
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use lexical_util::format::NumberFormatBuilder;
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pub const FORMAT: u128 = NumberFormatBuilder::new()
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.digit_separator(num::NonZeroU8::new(b'_'))
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.digit_separator_flags(true)
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.build_strict();
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type Digits<'a> = Bytes<'a, { FORMAT }>;
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assert!(!Digits::IS_CONTIGUOUS);
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let digits = b"123_45";
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let mut byte1 = Digits::new(digits);
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let mut byte2 = Digits::new(digits);
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assert!(byte1.integer_iter().eq(byte2.integer_iter()));
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let mut byte = digits.bytes::<{ FORMAT }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.as_slice(), &digits[..]);
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assert_eq!(iter.as_ptr(), digits.as_ptr());
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assert_eq!(iter.is_consumed(), false);
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assert_eq!(iter.is_buffer_empty(), false);
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assert_eq!(iter.buffer_length(), 6);
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assert_eq!(iter.cursor(), 0);
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assert_eq!(iter.current_count(), 0);
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unsafe { iter.step_unchecked() };
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assert_eq!(iter.cursor(), 1);
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assert_eq!(iter.current_count(), 0);
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iter.next();
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assert_eq!(iter.cursor(), 2);
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assert_eq!(iter.current_count(), 1);
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let mut byte = digits.bytes::<{ FORMAT }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.peek(), Some(&b'1'));
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assert_eq!(iter.peek(), Some(&b'1'));
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assert_eq!(iter.next(), Some(&b'1'));
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assert_eq!(iter.next(), Some(&b'2'));
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assert_eq!(iter.next(), Some(&b'3'));
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assert_eq!(iter.cursor(), 3);
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assert_eq!(iter.current_count(), 3);
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assert_eq!(iter.next(), Some(&b'4'));
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assert_eq!(iter.cursor(), 5);
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assert_eq!(iter.current_count(), 4);
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assert_eq!(iter.next(), Some(&b'5'));
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assert_eq!(iter.next(), None);
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let mut byte = digits.bytes::<{ FORMAT }>();
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let mut iter = byte.integer_iter();
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assert_eq!(iter.nth(4).unwrap(), &b'5');
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assert_eq!(iter.as_slice(), &digits[digits.len()..]);
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assert_eq!(iter.as_ptr(), digits[digits.len()..].as_ptr());
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}
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