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https://github.com/logos-blockchain/lssa.git
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0ed91e869e
Introduce the ATA program, which derives deterministic per-token holding accounts from (owner, token_definition) via SHA256, eliminating the need to manually create and track holding account IDs. Program (programs/associated_token_account/): - Create, Transfer, and Burn instructions with PDA-based authorization - Deterministic address derivation: SHA256(owner || definition) → seed → AccountId - Idempotent Create (no-op if ATA already exists) Wallet CLI (`wallet ata`): - `address` — derive ATA address locally (no network call) - `create` — initialize an ATA on-chain - `send` — transfer tokens from owner's ATA to a recipient - `burn` — burn tokens from owner's ATA - `list` — query ATAs across multiple token definitions Usage: wallet deploy-program artifacts/program_methods/associated_token_account.bin wallet ata address --owner <ID> --token-definition <DEF_ID> wallet ata create --owner Public/<ID> --token-definition <DEF_ID> wallet ata send --from Public/<ID> --token-definition <DEF_ID> --to <RECIPIENT> --amount 100 wallet ata burn --holder Public/<ID> --token-definition <DEF_ID> --amount 50 wallet ata list --owner <ID> --token-definition <DEF1> <DEF2> Includes tutorial: docs/LEZ testnet v0.1 tutorials/associated-token-accounts.md
40 lines
1.4 KiB
Rust
40 lines
1.4 KiB
Rust
use nssa_core::{
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account::AccountWithMetadata,
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program::{AccountPostState, ChainedCall, ProgramId},
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};
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use token_core::TokenHolding;
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pub fn burn_from_associated_token_account(
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owner: AccountWithMetadata,
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holder_ata: AccountWithMetadata,
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token_definition: AccountWithMetadata,
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ata_program_id: ProgramId,
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amount: u128,
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) -> (Vec<AccountPostState>, Vec<ChainedCall>) {
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let token_program_id = holder_ata.account.program_owner;
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assert!(owner.is_authorized, "Owner authorization is missing");
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let definition_id = TokenHolding::try_from(&holder_ata.account.data)
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.expect("Holder ATA must hold a valid token")
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.definition_id();
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let seed =
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ata_core::verify_ata_and_get_seed(&holder_ata, &owner, definition_id, ata_program_id);
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let post_states = vec![
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AccountPostState::new(owner.account.clone()),
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AccountPostState::new(holder_ata.account.clone()),
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AccountPostState::new(token_definition.account.clone()),
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];
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let mut holder_ata_auth = holder_ata.clone();
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holder_ata_auth.is_authorized = true;
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let chained_call = ChainedCall::new(
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token_program_id,
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vec![token_definition.clone(), holder_ata_auth],
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&token_core::Instruction::Burn {
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amount_to_burn: amount,
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},
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)
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.with_pda_seeds(vec![seed]);
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(post_states, vec![chained_call])
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}
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