mirror of
https://github.com/denoland/deno
synced 2024-09-30 05:13:53 +00:00
94f040ac28
In https://github.com/denoland/deno/pull/23955 we changed the sqlite db journal mode to WAL. This causes issues when someone is running an old version of Deno using TRUNCATE and a new version because the two fight against each other.
51 lines
1 KiB
Rust
51 lines
1 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use std::hash::Hasher;
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/// A very fast insecure hasher that uses the xxHash algorithm.
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pub struct FastInsecureHasher(twox_hash::XxHash64);
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impl FastInsecureHasher {
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pub fn new_without_deno_version() -> Self {
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Self(Default::default())
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}
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pub fn new_deno_versioned() -> Self {
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let mut hasher = Self::new_without_deno_version();
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hasher.write_str(crate::version::deno());
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hasher
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}
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pub fn write_str(&mut self, text: &str) -> &mut Self {
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self.write(text.as_bytes());
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self
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}
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pub fn write(&mut self, bytes: &[u8]) -> &mut Self {
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self.0.write(bytes);
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self
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}
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pub fn write_u8(&mut self, value: u8) -> &mut Self {
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self.0.write_u8(value);
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self
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}
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pub fn write_u64(&mut self, value: u64) -> &mut Self {
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self.0.write_u64(value);
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self
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}
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pub fn write_hashable(
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&mut self,
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hashable: impl std::hash::Hash,
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) -> &mut Self {
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hashable.hash(&mut self.0);
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self
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}
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pub fn finish(&self) -> u64 {
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self.0.finish()
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}
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}
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