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rustopianrustopian
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interface: Split out instructions, state, errors from program (#76)
Everything needed by Agave is now split into the spl-token-interface crate. On-chain programs can also use this as an rlib.
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‎.github/actions/setup/action.yml‎

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clippy:
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description: Install Clippy if `true`. Defaults to `false`.
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required: false
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purge:
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description: Purge unused directories if `true`. Defaults to `false`.
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required: false
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rustfmt:
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description: Install Rustfmt if `true`. Defaults to `false`.
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required: false
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node-version: 20
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cache: 'pnpm'
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- name: Purge unused ubuntu runner directories
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if: ${{ inputs.purge == 'true' }}
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shell: bash
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run: |
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# If there are still disk space issues, try to add more packages from
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# https://github.com/jlumbroso/free-disk-space
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sudo rm -rf /usr/share/dotnet
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sudo rm -rf /usr/share/swift
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sudo rm -rf /usr/share/mysql
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sudo rm -rf /usr/share/az_*
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sudo rm -rf /usr/share/postgresql-common
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sudo rm -rf /opt/ghc
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sudo rm -rf /usr/local/.ghcup
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sudo rm -rf /opt/az
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sudo rm -rf /opt/pipx
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sudo rm -rf /opt/microsoft
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sudo rm -rf /opt/google
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sudo rm -rf /opt/hostedtoolcache
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sudo rm -rf /usr/local/lib/android
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sudo rm -rf /usr/local/lib/heroku
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sudo rm -rf /imagegeneration
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sudo rm -rf "$AGENT_TOOLSDIRECTORY"
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sudo docker image prune --all --force
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sudo docker system prune -af
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# Clear additional caches that might be large
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sudo rm -rf /tmp/*
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sudo rm -rf /var/tmp/*
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# This packages aren't that big, ~500MB total
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#sudo apt-get remove -y '^php.*' --fix-missing
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#sudo apt-get remove -y '^dotnet-.*' --fix-missing
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#sudo apt-get remove -y '^mongodb-.*' --fix-missing
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#sudo apt-get remove -y '^mysql-.*' --fix-missing
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sudo apt-get remove -y '^aspnetcore-.*' azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri google-cloud-cli --fix-missing
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sudo apt-get autoremove -y
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sudo apt-get clean
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#sudo swapoff -a
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#sudo rm -f /mnt/swapfile
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- name: Install Dependencies
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run: pnpm install --frozen-lockfile
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shell: bash

‎.github/workflows/main.yml‎

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- name: Lint
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run: pnpm p-token:lint
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format_and_lint_interface:
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name: Format, Lint & Test Interface
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runs-on: ubuntu-latest
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steps:
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- name: Git Checkout
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uses: actions/checkout@v4
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- name: Setup Environment
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uses: ./.github/actions/setup
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with:
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clippy: true
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rustfmt: true
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- name: Format
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run: pnpm interface:format
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- name: Lint
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run: pnpm interface:lint
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- name: Lint
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run: pnpm interface:test
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audit_rust:
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name: Audit Rust
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runs-on: ubuntu-latest
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with:
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cargo-cache-key: cargo-test-ptoken
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solana: true
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purge: true
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- name: Restore Program Builds
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uses: actions/cache/restore@v4

‎interface/Cargo.toml‎

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[package]
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name = "spl-token-interface"
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version = "1.0.0"
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description = "Solana Program Library Token Interface"
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documentation = "https://docs.rs/spl-token-interface"
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readme = "README.md"
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authors = { workspace = true }
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repository = { workspace = true }
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license = { workspace = true }
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edition = { workspace = true }
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[dependencies]
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arrayref = "0.3.9"
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bytemuck = "1.20.0"
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num-derive = "0.4"
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num_enum = "0.7.4"
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num-traits = "0.2"
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solana-instruction = "2.3.0"
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solana-program-error = "2.2.2"
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solana-program-option = "2.2.1"
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solana-program-pack = "2.2.1"
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solana-pubkey = { version = "2.4.0", features = ["bytemuck"] }
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solana-sdk-ids = "2.2.1"
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thiserror = "2.0"
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[dev-dependencies]
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proptest = "1.5"
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strum = "0.24"
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strum_macros = "0.24"
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[lib]
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crate-type = ["lib"]
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[package.metadata.docs.rs]
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targets = ["x86_64-unknown-linux-gnu"]
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[lints]
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workspace = true
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[package.metadata.solana]
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program-id = "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"

‎interface/README.md‎

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# Token Interface
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A token program interface on the Solana blockchain, usable for fungible and
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non-fungible tokens.
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This crate provides an interface that third parties can utilize to create and
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use their tokens.
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Full documentation is available at [https://www.solana-program.com/docs/token](https://www.solana-program.com/docs/token)
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## Audit
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The audit repository [README](https://github.com/solana-labs/solana-program-library#audits)
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contains information about program audits.

‎interface/src/error.rs‎

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//! Error types
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use {
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num_derive::FromPrimitive,
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solana_program_error::{ProgramError, ToStr},
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thiserror::Error,
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};
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/// Errors that may be returned by the Token program.
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#[cfg_attr(test, derive(strum_macros::FromRepr, strum_macros::EnumIter))]
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#[derive(Clone, Debug, Eq, Error, FromPrimitive, PartialEq)]
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pub enum TokenError {
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// 0
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/// Lamport balance below rent-exempt threshold.
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#[error("Lamport balance below rent-exempt threshold")]
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NotRentExempt,
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/// Insufficient funds for the operation requested.
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#[error("Insufficient funds")]
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InsufficientFunds,
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/// Invalid Mint.
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#[error("Invalid Mint")]
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InvalidMint,
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/// Account not associated with this Mint.
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#[error("Account not associated with this Mint")]
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MintMismatch,
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/// Owner does not match.
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#[error("Owner does not match")]
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OwnerMismatch,
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// 5
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/// This token's supply is fixed and new tokens cannot be minted.
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#[error("Fixed supply")]
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FixedSupply,
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/// The account cannot be initialized because it is already being used.
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#[error("Already in use")]
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AlreadyInUse,
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/// Invalid number of provided signers.
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#[error("Invalid number of provided signers")]
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InvalidNumberOfProvidedSigners,
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/// Invalid number of required signers.
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#[error("Invalid number of required signers")]
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InvalidNumberOfRequiredSigners,
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/// State is uninitialized.
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#[error("State is uninitialized")]
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UninitializedState,
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// 10
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/// Instruction does not support native tokens
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#[error("Instruction does not support native tokens")]
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NativeNotSupported,
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/// Non-native account can only be closed if its balance is zero
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#[error("Non-native account can only be closed if its balance is zero")]
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NonNativeHasBalance,
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/// Invalid instruction
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#[error("Invalid instruction")]
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InvalidInstruction,
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/// State is invalid for requested operation.
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#[error("State is invalid for requested operation")]
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InvalidState,
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/// Operation overflowed
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#[error("Operation overflowed")]
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Overflow,
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// 15
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/// Account does not support specified authority type.
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#[error("Account does not support specified authority type")]
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AuthorityTypeNotSupported,
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/// This token mint cannot freeze accounts.
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#[error("This token mint cannot freeze accounts")]
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MintCannotFreeze,
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/// Account is frozen; all account operations will fail
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#[error("Account is frozen")]
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AccountFrozen,
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/// Mint decimals mismatch between the client and mint
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#[error("The provided decimals value different from the Mint decimals")]
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MintDecimalsMismatch,
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/// Instruction does not support non-native tokens
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#[error("Instruction does not support non-native tokens")]
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NonNativeNotSupported,
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}
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impl From<TokenError> for ProgramError {
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fn from(e: TokenError) -> Self {
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ProgramError::Custom(e as u32)
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}
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}
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impl TryFrom<u32> for TokenError {
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type Error = ProgramError;
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fn try_from(error: u32) -> Result<Self, Self::Error> {
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match error {
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0 => Ok(TokenError::NotRentExempt),
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1 => Ok(TokenError::InsufficientFunds),
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2 => Ok(TokenError::InvalidMint),
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3 => Ok(TokenError::MintMismatch),
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4 => Ok(TokenError::OwnerMismatch),
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5 => Ok(TokenError::FixedSupply),
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6 => Ok(TokenError::AlreadyInUse),
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7 => Ok(TokenError::InvalidNumberOfProvidedSigners),
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8 => Ok(TokenError::InvalidNumberOfRequiredSigners),
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9 => Ok(TokenError::UninitializedState),
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10 => Ok(TokenError::NativeNotSupported),
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11 => Ok(TokenError::NonNativeHasBalance),
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12 => Ok(TokenError::InvalidInstruction),
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13 => Ok(TokenError::InvalidState),
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14 => Ok(TokenError::Overflow),
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15 => Ok(TokenError::AuthorityTypeNotSupported),
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16 => Ok(TokenError::MintCannotFreeze),
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17 => Ok(TokenError::AccountFrozen),
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18 => Ok(TokenError::MintDecimalsMismatch),
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19 => Ok(TokenError::NonNativeNotSupported),
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_ => Err(ProgramError::InvalidArgument),
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}
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}
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}
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impl ToStr for TokenError {
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fn to_str<E>(&self) -> &'static str {
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match self {
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TokenError::NotRentExempt => "Error: Lamport balance below rent-exempt threshold",
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TokenError::InsufficientFunds => "Error: insufficient funds",
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TokenError::InvalidMint => "Error: Invalid Mint",
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TokenError::MintMismatch => "Error: Account not associated with this Mint",
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TokenError::OwnerMismatch => "Error: owner does not match",
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TokenError::FixedSupply => "Error: the total supply of this token is fixed",
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TokenError::AlreadyInUse => "Error: account or token already in use",
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TokenError::InvalidNumberOfProvidedSigners => {
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"Error: Invalid number of provided signers"
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}
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TokenError::InvalidNumberOfRequiredSigners => {
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"Error: Invalid number of required signers"
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}
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TokenError::UninitializedState => "Error: State is uninitialized",
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TokenError::NativeNotSupported => "Error: Instruction does not support native tokens",
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TokenError::NonNativeHasBalance => {
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"Error: Non-native account can only be closed if its balance is zero"
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}
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TokenError::InvalidInstruction => "Error: Invalid instruction",
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TokenError::InvalidState => "Error: Invalid account state for operation",
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TokenError::Overflow => "Error: Operation overflowed",
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TokenError::AuthorityTypeNotSupported => {
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"Error: Account does not support specified authority type"
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}
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TokenError::MintCannotFreeze => "Error: This token mint cannot freeze accounts",
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TokenError::AccountFrozen => "Error: Account is frozen",
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TokenError::MintDecimalsMismatch => "Error: decimals different from the Mint decimals",
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TokenError::NonNativeNotSupported => {
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"Error: Instruction does not support non-native tokens"
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}
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}
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}
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}
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#[cfg(test)]
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mod test {
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use {super::*, strum::IntoEnumIterator};
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#[test]
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fn test_parse_error_from_primitive_exhaustive() {
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for variant in TokenError::iter() {
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let variant_u32 = variant as u32;
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assert_eq!(
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TokenError::from_repr(variant_u32 as usize).unwrap(),
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TokenError::try_from(variant_u32).unwrap()
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);
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}
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}
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}

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