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Diffstat (limited to 'vendor/serde/src/de/size_hint.rs')
-rw-r--r-- | vendor/serde/src/de/size_hint.rs | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/vendor/serde/src/de/size_hint.rs b/vendor/serde/src/de/size_hint.rs deleted file mode 100644 index 4a4fe25..0000000 --- a/vendor/serde/src/de/size_hint.rs +++ /dev/null @@ -1,29 +0,0 @@ -use crate::lib::*; - -pub fn from_bounds<I>(iter: &I) -> Option<usize> -where - I: Iterator, -{ - helper(iter.size_hint()) -} - -#[cfg(any(feature = "std", feature = "alloc"))] -pub fn cautious<Element>(hint: Option<usize>) -> usize { - const MAX_PREALLOC_BYTES: usize = 1024 * 1024; - - if mem::size_of::<Element>() == 0 { - 0 - } else { - cmp::min( - hint.unwrap_or(0), - MAX_PREALLOC_BYTES / mem::size_of::<Element>(), - ) - } -} - -fn helper(bounds: (usize, Option<usize>)) -> Option<usize> { - match bounds { - (lower, Some(upper)) if lower == upper => Some(upper), - _ => None, - } -} |