Add CrystallizedState

src/state/crystallized_state.rs

@@ -0,0 +1,38 @@
+use super::utils::types::Sha256Digest;
+use super::validator_record::ValidatorRecord;
+use super::crosslink_record::CrosslinkRecord;
+use super::ethereum_types::U256;
+
+pub struct CrystallizedState {
+    pub active_validators: Vec<ValidatorRecord>,
+    pub queued_validators: Vec<ValidatorRecord>,
+    pub exited_validators: Vec<ValidatorRecord>,
+    pub current_shuffling: Vec<u32>,  // TODO: should be u24
+    pub current_epoch: u64,
+    pub last_justified_epoch: u64,
+    pub last_finalized_epoch: u64,
+    pub dynasty: u64,
+    pub next_shard: u16,
+    pub current_checkpoint: Sha256Digest,
+    pub crosslink_records: Vec<CrosslinkRecord>,
+    pub total_deposits: U256,
+}
+
+impl CrystallizedState {
+    pub fn num_active_validators(&self) -> usize {
+        self.active_validators.len()
+    }
+
+    pub fn num_queued_validators(&self) -> usize {
+        self.queued_validators.len()
+    }
+
+    pub fn num_exited_validators(&self) -> usize {
+        self.exited_validators.len()
+    }
+
+    pub fn num_crosslink_records(&self) -> usize {
+        self.crosslink_records.len()
+
+    }
+}