rust/hg-core/src/revlog/index.rs

--- a/rust/hg-core/src/revlog/index.rs	Wed Sep 23 12:26:16 2020 +0200
+++ b/rust/hg-core/src/revlog/index.rs	Wed Sep 02 15:23:25 2020 +0200
@@ -1,5 +1,6 @@
+use byteorder::{BigEndian, ByteOrder};
+
 use crate::revlog::{Revision, NULL_REVISION};
-use byteorder::{BigEndian, ByteOrder};
 
 pub const INDEX_ENTRY_SIZE: usize = 64;
 
@@ -141,6 +142,22 @@
 
         BigEndian::read_i32(&self.bytes[16..])
     }
+
+    pub fn p1(&self) -> Revision {
+        BigEndian::read_i32(&self.bytes[24..])
+    }
+
+    pub fn p2(&self) -> Revision {
+        BigEndian::read_i32(&self.bytes[28..])
+    }
+
+    /// Return the hash of revision's full text.
+    ///
+    /// Currently, SHA-1 is used and only the first 20 bytes of this field
+    /// are used.
+    pub fn hash(&self) -> &[u8] {
+        &self.bytes[32..52]
+    }
 }
 
 #[cfg(test)]