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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168

use crate::PublicKey;
use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
pub enum SystemInstruction {
    /// Create a new account
    ///
    /// # Account references
    ///   0. `[WRITE, SIGNER]` Funding account
    ///   1. `[WRITE, SIGNER]` New account
    CreateAccount {
        /// Number of lamports to transfer to the new account
        lamports: u64,

        /// Number of bytes of memory to allocate
        space: u64,

        /// Address of program that will own the new account
        owner: PublicKey,
    },

    /// Assign account to a program
    ///
    /// # Account references
    ///   0. `[WRITE, SIGNER]` Assigned account public key
    Assign {
        /// Owner program account
        owner: PublicKey,
    },

    /// Transfer lamports
    ///
    /// # Account references
    ///   0. `[WRITE, SIGNER]` Funding account
    ///   1. `[WRITE]` Recipient account
    Transfer { lamports: u64 },

    /// Create a new account at an address derived from a base pubkey and a seed
    ///
    /// # Account references
    ///   0. `[WRITE, SIGNER]` Funding account
    ///   1. `[WRITE]` Created account
    ///   2. `[SIGNER]` (optional) Base account; the account matching the base Pubkey below must be
    ///                          provided as a signer, but may be the same as the funding account
    ///                          and provided as account 0
    CreateAccountWithSeed {
        /// Base public key
        base: PublicKey,

        /// String of ASCII chars, no longer than `Pubkey::MAX_SEED_LEN`
        seed: String,

        /// Number of lamports to transfer to the new account
        lamports: u64,

        /// Number of bytes of memory to allocate
        space: u64,

        /// Owner program account address
        owner: PublicKey,
    },

    /// Consumes a stored nonce, replacing it with a successor
    ///
    /// # Account references
    ///   0. `[WRITE]` Nonce account
    ///   1. `[]` RecentBlockhashes sysvar
    ///   2. `[SIGNER]` Nonce authority
    AdvanceNonceAccount,

    /// Withdraw funds from a nonce account
    ///
    /// # Account references
    ///   0. `[WRITE]` Nonce account
    ///   1. `[WRITE]` Recipient account
    ///   2. `[]` RecentBlockhashes sysvar
    ///   3. `[]` Rent sysvar
    ///   4. `[SIGNER]` Nonce authority
    ///
    /// The `u64` parameter is the lamports to withdraw, which must leave the
    /// account balance above the rent exempt reserve or at zero.
    WithdrawNonceAccount(u64),

    /// Drive state of Uninitialized nonce account to Initialized, setting the nonce value
    ///
    /// # Account references
    ///   0. `[WRITE]` Nonce account
    ///   1. `[]` RecentBlockhashes sysvar
    ///   2. `[]` Rent sysvar
    ///
    /// The `Pubkey` parameter specifies the entity authorized to execute nonce
    /// instruction on the account
    ///
    /// No signatures are required to execute this instruction, enabling derived
    /// nonce account addresses
    InitializeNonceAccount(PublicKey),

    /// Change the entity authorized to execute nonce instructions on the account
    ///
    /// # Account references
    ///   0. `[WRITE]` Nonce account
    ///   1. `[SIGNER]` Nonce authority
    ///
    /// The `Pubkey` parameter identifies the entity to authorize
    AuthorizeNonceAccount(PublicKey),

    /// Allocate space in a (possibly new) account without funding
    ///
    /// # Account references
    ///   0. `[WRITE, SIGNER]` New account
    Allocate {
        /// Number of bytes of memory to allocate
        space: u64,
    },

    /// Allocate space for and assign an account at an address
    ///    derived from a base public key and a seed
    ///
    /// # Account references
    ///   0. `[WRITE]` Allocated account
    ///   1. `[SIGNER]` Base account
    AllocateWithSeed {
        /// Base public key
        base: PublicKey,

        /// String of ASCII chars, no longer than `pubkey::MAX_SEED_LEN`
        seed: String,

        /// Number of bytes of memory to allocate
        space: u64,

        /// Owner program account
        owner: PublicKey,
    },

    /// Assign account to a program based on a seed
    ///
    /// # Account references
    ///   0. `[WRITE]` Assigned account
    ///   1. `[SIGNER]` Base account
    AssignWithSeed {
        /// Base public key
        base: PublicKey,

        /// String of ASCII chars, no longer than `pubkey::MAX_SEED_LEN`
        seed: String,

        /// Owner program account
        owner: PublicKey,
    },

    /// Transfer lamports from a derived address
    ///
    /// # Account references
    ///   0. `[WRITE]` Funding account
    ///   1. `[SIGNER]` Base for funding account
    ///   2. `[WRITE]` Recipient account
    TransferWithSeed {
        /// Amount to transfer
        lamports: u64,

        /// Seed to use to derive the funding account address
        from_seed: String,

        /// Owner to use to derive the funding account address
        from_owner: PublicKey,
    },
}