redgold_schema/
block.rs

1use crate::helpers::with_metadata_hashable::WithMetadataHashableFields;
2use crate::structs::{Block, ErrorInfo, StructMetadata};
3use crate::HashClear;
4use crate::SafeOption;
5
6impl HashClear for Block {
7    fn hash_clear(&mut self) {
8        self.transactions.clear();
9        if let Some(sm) = self.struct_metadata.as_mut() {
10            sm.hash_clear()
11        }
12    }
13}
14
15impl WithMetadataHashableFields for Block {
16    fn struct_metadata_opt(&mut self) -> Option<&mut StructMetadata> {
17        self.struct_metadata.as_mut()
18    }
19
20    fn struct_metadata_opt_ref(&self) -> Option<&StructMetadata> {
21        self.struct_metadata.as_ref()
22    }
23}
24
25impl Block {
26
27    pub fn time(&self) -> Result<i64, ErrorInfo> {
28        Ok(self
29            .struct_metadata
30            .safe_get()?
31            .time
32            .safe_get()?
33            .clone()
34        )
35    }
36
37    // pub fn from(transactions: Vec<Transaction>, last_time: i64, ) {
38    //     if let Some(txa) = txs {
39    //         // TODO: re-query observation edge here.
40    //         let leafs = transactions
41    //             .clone()
42    //             .iter()
43    //             .map(|e| e.hash_vec().clone())
44    //             .collect_vec();
45    //         let mut block = Block {
46    //             // TODO: use a real merkle root here
47    //             merkle_root: Some(rg_merkle::build_root_simple(&leafs)),
48    //             transactions: vec, // TODO: can leave this blank and enforce it properly
49    //             // to remove the clone on hash calculation? That's clever do it as part
50    //             // of a constructor function.
51    //             struct_metadata: struct_metadata(last_time as i64),
52    //             previous_block_hash: self.last_block.hash.clone(),
53    //             metadata: None,
54    //             hash: None,
55    //             height: self.last_block.height + 1,
56    //         }
57    //             .with_hash();
58    // }
59}
60
61#[test]
62fn verify_hash_equivalent_schema_change() {
63    let block = Block {
64        merkle_root: None,
65        transactions: vec![],
66        struct_metadata: None,
67        previous_block_hash: None,
68        metadata: None,
69        height: 0,
70    };
71    // before adding 'test_field: Option<String>'
72    // 1440a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26
73    // println!("Hash hex empty block: {}", block.hash_hex().expect(""));
74    // same hash after adding test_field: None to schema, verifying we can evolve schema while
75    // keeping hashes consistent so long as all fields are None at first.
76}
redgold_schema/block.rs

redgold_schema/
block.rs
