Coverage Report

Created: 2024-10-22 12:33

/build/source/nativelink-store/src/cas_utils.rs
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// Copyright 2024 The NativeLink Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//    http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use nativelink_util::common::DigestInfo;
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use nativelink_util::store_trait::StoreKey;
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pub const ZERO_BYTE_DIGESTS: [DigestInfo; 2] = [
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    // Sha256 hash of zero bytes.
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    DigestInfo::new(
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        [
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            0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f,
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            0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b,
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            0x78, 0x52, 0xb8, 0x55,
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        ],
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        0,
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    ),
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    // Blake3 hash of zero bytes.
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    DigestInfo::new(
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        [
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            0xaf, 0x13, 0x49, 0xb9, 0xf5, 0xf9, 0xa1, 0xa6, 0xa0, 0x40, 0x4d, 0xea, 0x36, 0xdc,
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            0xc9, 0x49, 0x9b, 0xcb, 0x25, 0xc9, 0xad, 0xc1, 0x12, 0xb7, 0xcc, 0x9a, 0x93, 0xca,
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            0xe4, 0x1f, 0x32, 0x62,
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        ],
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        0,
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    ),
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];
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#[inline]
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5.99k
pub fn is_zero_digest<'a>(digest: impl Into<StoreKey<'a>>) -> bool {
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5.99k
    match digest.into() {
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5.99k
        StoreKey::Digest(digest) => digest.size_bytes() == 0 && 
ZERO_BYTE_DIGESTS.contains(&digest)67
,
  Branch (42:37): [True: 0, False: 0]
  Branch (42:37): [True: 0, False: 0]
  Branch (42:37): [True: 53, False: 5.87k]
  Branch (42:37): [True: 2, False: 2]
  Branch (42:37): [True: 1, False: 6]
  Branch (42:37): [True: 2, False: 2]
  Branch (42:37): [True: 0, False: 0]
  Branch (42:37): [True: 0, False: 0]
  Branch (42:37): [Folded - Ignored]
  Branch (42:37): [True: 7, False: 20]
  Branch (42:37): [True: 0, False: 13]
  Branch (42:37): [True: 2, False: 9]

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        StoreKey::Str(_) => false,
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    }
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5.99k
}