|
| 1 | +//! Error types |
| 2 | +
|
| 3 | +use { |
| 4 | + num_derive::FromPrimitive, |
| 5 | + solana_program_error::{ProgramError, ToStr}, |
| 6 | + thiserror::Error, |
| 7 | +}; |
| 8 | + |
| 9 | +/// Errors that may be returned by the Token program. |
| 10 | +#[cfg_attr(test, derive(strum_macros::FromRepr, strum_macros::EnumIter))] |
| 11 | +#[derive(Clone, Debug, Eq, Error, FromPrimitive, PartialEq)] |
| 12 | +pub enum TokenError { |
| 13 | + // 0 |
| 14 | + /// Lamport balance below rent-exempt threshold. |
| 15 | + #[error("Lamport balance below rent-exempt threshold")] |
| 16 | + NotRentExempt, |
| 17 | + /// Insufficient funds for the operation requested. |
| 18 | + #[error("Insufficient funds")] |
| 19 | + InsufficientFunds, |
| 20 | + /// Invalid Mint. |
| 21 | + #[error("Invalid Mint")] |
| 22 | + InvalidMint, |
| 23 | + /// Account not associated with this Mint. |
| 24 | + #[error("Account not associated with this Mint")] |
| 25 | + MintMismatch, |
| 26 | + /// Owner does not match. |
| 27 | + #[error("Owner does not match")] |
| 28 | + OwnerMismatch, |
| 29 | + |
| 30 | + // 5 |
| 31 | + /// This token's supply is fixed and new tokens cannot be minted. |
| 32 | + #[error("Fixed supply")] |
| 33 | + FixedSupply, |
| 34 | + /// The account cannot be initialized because it is already being used. |
| 35 | + #[error("Already in use")] |
| 36 | + AlreadyInUse, |
| 37 | + /// Invalid number of provided signers. |
| 38 | + #[error("Invalid number of provided signers")] |
| 39 | + InvalidNumberOfProvidedSigners, |
| 40 | + /// Invalid number of required signers. |
| 41 | + #[error("Invalid number of required signers")] |
| 42 | + InvalidNumberOfRequiredSigners, |
| 43 | + /// State is uninitialized. |
| 44 | + #[error("State is uninitialized")] |
| 45 | + UninitializedState, |
| 46 | + |
| 47 | + // 10 |
| 48 | + /// Instruction does not support native tokens |
| 49 | + #[error("Instruction does not support native tokens")] |
| 50 | + NativeNotSupported, |
| 51 | + /// Non-native account can only be closed if its balance is zero |
| 52 | + #[error("Non-native account can only be closed if its balance is zero")] |
| 53 | + NonNativeHasBalance, |
| 54 | + /// Invalid instruction |
| 55 | + #[error("Invalid instruction")] |
| 56 | + InvalidInstruction, |
| 57 | + /// State is invalid for requested operation. |
| 58 | + #[error("State is invalid for requested operation")] |
| 59 | + InvalidState, |
| 60 | + /// Operation overflowed |
| 61 | + #[error("Operation overflowed")] |
| 62 | + Overflow, |
| 63 | + |
| 64 | + // 15 |
| 65 | + /// Account does not support specified authority type. |
| 66 | + #[error("Account does not support specified authority type")] |
| 67 | + AuthorityTypeNotSupported, |
| 68 | + /// This token mint cannot freeze accounts. |
| 69 | + #[error("This token mint cannot freeze accounts")] |
| 70 | + MintCannotFreeze, |
| 71 | + /// Account is frozen; all account operations will fail |
| 72 | + #[error("Account is frozen")] |
| 73 | + AccountFrozen, |
| 74 | + /// Mint decimals mismatch between the client and mint |
| 75 | + #[error("The provided decimals value different from the Mint decimals")] |
| 76 | + MintDecimalsMismatch, |
| 77 | + /// Instruction does not support non-native tokens |
| 78 | + #[error("Instruction does not support non-native tokens")] |
| 79 | + NonNativeNotSupported, |
| 80 | +} |
| 81 | +impl From<TokenError> for ProgramError { |
| 82 | + fn from(e: TokenError) -> Self { |
| 83 | + ProgramError::Custom(e as u32) |
| 84 | + } |
| 85 | +} |
| 86 | + |
| 87 | +impl TryFrom<u32> for TokenError { |
| 88 | + type Error = ProgramError; |
| 89 | + fn try_from(error: u32) -> Result<Self, Self::Error> { |
| 90 | + match error { |
| 91 | + 0 => Ok(TokenError::NotRentExempt), |
| 92 | + 1 => Ok(TokenError::InsufficientFunds), |
| 93 | + 2 => Ok(TokenError::InvalidMint), |
| 94 | + 3 => Ok(TokenError::MintMismatch), |
| 95 | + 4 => Ok(TokenError::OwnerMismatch), |
| 96 | + 5 => Ok(TokenError::FixedSupply), |
| 97 | + 6 => Ok(TokenError::AlreadyInUse), |
| 98 | + 7 => Ok(TokenError::InvalidNumberOfProvidedSigners), |
| 99 | + 8 => Ok(TokenError::InvalidNumberOfRequiredSigners), |
| 100 | + 9 => Ok(TokenError::UninitializedState), |
| 101 | + 10 => Ok(TokenError::NativeNotSupported), |
| 102 | + 11 => Ok(TokenError::NonNativeHasBalance), |
| 103 | + 12 => Ok(TokenError::InvalidInstruction), |
| 104 | + 13 => Ok(TokenError::InvalidState), |
| 105 | + 14 => Ok(TokenError::Overflow), |
| 106 | + 15 => Ok(TokenError::AuthorityTypeNotSupported), |
| 107 | + 16 => Ok(TokenError::MintCannotFreeze), |
| 108 | + 17 => Ok(TokenError::AccountFrozen), |
| 109 | + 18 => Ok(TokenError::MintDecimalsMismatch), |
| 110 | + 19 => Ok(TokenError::NonNativeNotSupported), |
| 111 | + _ => Err(ProgramError::InvalidArgument), |
| 112 | + } |
| 113 | + } |
| 114 | +} |
| 115 | + |
| 116 | +impl ToStr for TokenError { |
| 117 | + fn to_str<E>(&self) -> &'static str { |
| 118 | + match self { |
| 119 | + TokenError::NotRentExempt => "Error: Lamport balance below rent-exempt threshold", |
| 120 | + TokenError::InsufficientFunds => "Error: insufficient funds", |
| 121 | + TokenError::InvalidMint => "Error: Invalid Mint", |
| 122 | + TokenError::MintMismatch => "Error: Account not associated with this Mint", |
| 123 | + TokenError::OwnerMismatch => "Error: owner does not match", |
| 124 | + TokenError::FixedSupply => "Error: the total supply of this token is fixed", |
| 125 | + TokenError::AlreadyInUse => "Error: account or token already in use", |
| 126 | + TokenError::InvalidNumberOfProvidedSigners => { |
| 127 | + "Error: Invalid number of provided signers" |
| 128 | + } |
| 129 | + TokenError::InvalidNumberOfRequiredSigners => { |
| 130 | + "Error: Invalid number of required signers" |
| 131 | + } |
| 132 | + TokenError::UninitializedState => "Error: State is uninitialized", |
| 133 | + TokenError::NativeNotSupported => "Error: Instruction does not support native tokens", |
| 134 | + TokenError::NonNativeHasBalance => { |
| 135 | + "Error: Non-native account can only be closed if its balance is zero" |
| 136 | + } |
| 137 | + TokenError::InvalidInstruction => "Error: Invalid instruction", |
| 138 | + TokenError::InvalidState => "Error: Invalid account state for operation", |
| 139 | + TokenError::Overflow => "Error: Operation overflowed", |
| 140 | + TokenError::AuthorityTypeNotSupported => { |
| 141 | + "Error: Account does not support specified authority type" |
| 142 | + } |
| 143 | + TokenError::MintCannotFreeze => "Error: This token mint cannot freeze accounts", |
| 144 | + TokenError::AccountFrozen => "Error: Account is frozen", |
| 145 | + TokenError::MintDecimalsMismatch => "Error: decimals different from the Mint decimals", |
| 146 | + TokenError::NonNativeNotSupported => { |
| 147 | + "Error: Instruction does not support non-native tokens" |
| 148 | + } |
| 149 | + } |
| 150 | + } |
| 151 | +} |
| 152 | + |
| 153 | +#[cfg(test)] |
| 154 | +mod test { |
| 155 | + use {super::*, strum::IntoEnumIterator}; |
| 156 | + #[test] |
| 157 | + fn test_parse_error_from_primitive_exhaustive() { |
| 158 | + for variant in TokenError::iter() { |
| 159 | + let variant_u32 = variant as u32; |
| 160 | + assert_eq!( |
| 161 | + TokenError::from_repr(variant_u32 as usize).unwrap(), |
| 162 | + TokenError::try_from(variant_u32).unwrap() |
| 163 | + ); |
| 164 | + } |
| 165 | + } |
| 166 | +} |
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