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index: inline entry size calculation

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There aren't many callers now, and using self.commit_id_length might help
compiler remove redundant bounds checking in CommitLookupEntry.
This commit is contained in:
Yuya Nishihara 2024-02-18 17:53:41 +09:00
parent d5c75da4f5
commit 924a5fc842
1 changed files with 6 additions and 8 deletions
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14
lib/src/default_index/readonly.rs
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@ -214,8 +214,6 @@ pub(super) struct ReadonlyIndexSegment {
name: String,
commit_id_length: usize,
change_id_length: usize,
commit_graph_entry_size: usize,
commit_lookup_entry_size: usize,
// Number of commits not counting the parent file
num_local_commits: u32,
num_local_change_ids: u32,
@ -354,8 +352,6 @@ impl ReadonlyIndexSegment {
name,
commit_id_length,
change_id_length,
commit_graph_entry_size,
commit_lookup_entry_size,
num_local_commits,
num_local_change_ids,
num_change_overflow_entries,
@ -386,17 +382,19 @@ impl ReadonlyIndexSegment {
fn graph_entry(&self, local_pos: LocalPosition) -> CommitGraphEntry {
let table = &self.data[..self.commit_lookup_base];
let offset = (local_pos.0 as usize) * self.commit_graph_entry_size;
let entry_size = CommitGraphEntry::size(self.commit_id_length);
let offset = (local_pos.0 as usize) * entry_size;
CommitGraphEntry {
data: &table[offset..][..self.commit_graph_entry_size],
data: &table[offset..][..entry_size],
}
}
fn commit_lookup_entry(&self, lookup_pos: u32) -> CommitLookupEntry {
let table = &self.data[self.commit_lookup_base..self.change_id_table_base];
let offset = (lookup_pos as usize) * self.commit_lookup_entry_size;
let entry_size = CommitLookupEntry::size(self.commit_id_length);
let offset = (lookup_pos as usize) * entry_size;
CommitLookupEntry {
data: &table[offset..][..self.commit_lookup_entry_size],
data: &table[offset..][..entry_size],
commit_id_length: self.commit_id_length,
}
}