From 2ada9dd3047940d75e5e28c413ee7991bb617827 Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Mon, 9 Jul 2018 12:11:06 +1000
Subject: [PATCH] Add CrystallizedState

---
 src/state/crystallized_state.rs | 38 +++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/state/crystallized_state.rs

diff --git a/src/state/crystallized_state.rs b/src/state/crystallized_state.rs
new file mode 100644
index 0000000000..4bc3e5c867
--- /dev/null
+++ b/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()
+
+    }
+}