fuel-core 0.48.0

Fuel client library is aggregation of all fuels service. It contains the all business logic of the fuel protocol.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

use crate::state::generic_database::GenericDatabase;
use fuel_core_storage::{
    Error as StorageError,
    Mappable,
    Result as StorageResult,
    StorageAsMut,
    StorageBatchMutate,
    StorageInspect,
    StorageMutate,
    StorageWrite,
    structured_storage::StructuredStorage,
    transactional::{
        ConflictPolicy,
        Modifiable,
        StorageTransaction,
    },
};

impl<Storage, M, Metadata> StorageMutate<M> for GenericDatabase<Storage, Metadata>
where
    M: Mappable,
    Self: Modifiable,
    StructuredStorage<Storage>: StorageInspect<M, Error = StorageError>,
    for<'a> StorageTransaction<&'a Storage>: StorageMutate<M, Error = StorageError>,
{
    fn replace(
        &mut self,
        key: &M::Key,
        value: &M::Value,
    ) -> Result<Option<M::OwnedValue>, Self::Error> {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        let prev = transaction.storage_as_mut::<M>().replace(key, value)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(prev)
    }

    fn take(&mut self, key: &M::Key) -> Result<Option<M::OwnedValue>, Self::Error> {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        let prev = transaction.storage_as_mut::<M>().take(key)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(prev)
    }
}

impl<Storage, M, Metadata> StorageWrite<M> for GenericDatabase<Storage, Metadata>
where
    M: Mappable,
    StructuredStorage<Storage>: StorageInspect<M, Error = StorageError>,
    for<'a> StorageTransaction<&'a Storage>: StorageWrite<M, Error = StorageError>,
    Self: Modifiable,
{
    fn write_bytes(&mut self, key: &M::Key, buf: &[u8]) -> Result<(), Self::Error> {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        <_ as StorageWrite<M>>::write_bytes(&mut transaction, key, buf)?;
        self.commit_changes(transaction.into_changes())
    }

    fn replace_bytes(
        &mut self,
        key: &M::Key,
        buf: &[u8],
    ) -> Result<Option<Vec<u8>>, Self::Error> {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        let prev = <_ as StorageWrite<M>>::replace_bytes(&mut transaction, key, buf)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(prev)
    }

    fn take_bytes(&mut self, key: &M::Key) -> Result<Option<Vec<u8>>, Self::Error> {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        let prev = <_ as StorageWrite<M>>::take_bytes(&mut transaction, key)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(prev)
    }
}

impl<Storage, M, Metadata> StorageBatchMutate<M> for GenericDatabase<Storage, Metadata>
where
    M: Mappable,
    StructuredStorage<Storage>: StorageInspect<M, Error = StorageError>,
    for<'a> StorageTransaction<&'a Storage>: StorageBatchMutate<M, Error = StorageError>,
    Self: Modifiable,
{
    fn init_storage<'a, Iter>(&mut self, set: Iter) -> StorageResult<()>
    where
        Iter: 'a + Iterator<Item = (&'a M::Key, &'a M::Value)>,
        M::Key: 'a,
        M::Value: 'a,
    {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        StorageBatchMutate::init_storage(&mut transaction, set)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(())
    }

    fn insert_batch<'a, Iter>(&mut self, set: Iter) -> StorageResult<()>
    where
        Iter: 'a + Iterator<Item = (&'a M::Key, &'a M::Value)>,
        M::Key: 'a,
        M::Value: 'a,
    {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        StorageBatchMutate::insert_batch(&mut transaction, set)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(())
    }

    fn remove_batch<'a, Iter>(&mut self, set: Iter) -> StorageResult<()>
    where
        Iter: 'a + Iterator<Item = &'a M::Key>,
        M::Key: 'a,
    {
        let mut transaction = StorageTransaction::transaction(
            self.as_ref(),
            ConflictPolicy::Overwrite,
            Default::default(),
        );
        StorageBatchMutate::remove_batch(&mut transaction, set)?;
        self.commit_changes(transaction.into_changes())?;
        Ok(())
    }
}