idl: Add accounts resolution for associated token accounts (#2927)
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@ -13,6 +13,7 @@ The minor version will be incremented upon a breaking change and the patch versi
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### Features
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- avm: Support customizing the installation location using `AVM_HOME` environment variable ([#2917](https://github.com/coral-xyz/anchor/pull/2917))
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- idl, ts: Add accounts resolution for associated token accounts ([#2927](https://github.com/coral-xyz/anchor/pull/2927))
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### Fixes
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@ -3,7 +3,7 @@ use proc_macro2::TokenStream;
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use quote::{quote, ToTokens};
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use super::common::{get_idl_module_path, get_no_docs};
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use crate::{AccountField, AccountsStruct, Field, Ty};
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use crate::{AccountField, AccountsStruct, Field, InitKind, Ty};
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/// Generate the IDL build impl for the Accounts struct.
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pub fn gen_idl_build_impl_accounts_struct(accounts: &AccountsStruct) -> TokenStream {
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@ -168,26 +168,87 @@ fn get_address(acc: &Field) -> TokenStream {
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fn get_pda(acc: &Field, accounts: &AccountsStruct) -> TokenStream {
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let idl = get_idl_module_path();
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let parse_default = |expr: &syn::Expr| parse_seed(expr, accounts);
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// Seeds
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let seed_constraints = acc.constraints.seeds.as_ref();
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let seeds = seed_constraints
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.map(|seed| seed.seeds.iter().map(|seed| parse_seed(seed, accounts)))
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.and_then(|seeds| seeds.collect::<Result<Vec<_>>>().ok());
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let program = seed_constraints
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.and_then(|seed| seed.program_seed.as_ref())
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.and_then(|program| parse_seed(program, accounts).ok())
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.map(|program| quote! { Some(#program) })
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.unwrap_or_else(|| quote! { None });
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match seeds {
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Some(seeds) => quote! {
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Some(
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#idl::IdlPda {
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seeds: vec![#(#seeds),*],
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program: #program,
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}
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)
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},
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_ => quote! { None },
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let pda = seed_constraints
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.map(|seed| seed.seeds.iter().map(parse_default))
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.and_then(|seeds| seeds.collect::<Result<Vec<_>>>().ok())
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.map(|seeds| {
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let program = seed_constraints
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.and_then(|seed| seed.program_seed.as_ref())
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.and_then(|program| parse_default(program).ok())
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.map(|program| quote! { Some(#program) })
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.unwrap_or_else(|| quote! { None });
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quote! {
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Some(
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#idl::IdlPda {
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seeds: vec![#(#seeds),*],
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program: #program,
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}
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)
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}
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});
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if let Some(pda) = pda {
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return pda;
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}
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// Associated token
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let pda = acc
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.constraints
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.init
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.as_ref()
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.and_then(|init| match &init.kind {
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InitKind::AssociatedToken {
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owner,
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mint,
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token_program,
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} => Some((owner, mint, token_program)),
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_ => None,
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})
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.or_else(|| {
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acc.constraints
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.associated_token
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.as_ref()
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.map(|ata| (&ata.wallet, &ata.mint, &ata.token_program))
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})
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.and_then(|(wallet, mint, token_program)| {
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// ATA constraints have implicit `.key()` call
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let parse_expr = |ts| parse_default(&syn::parse2(ts).unwrap()).ok();
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let parse_ata = |expr| parse_expr(quote! { #expr.key().as_ref() });
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let wallet = parse_ata(wallet);
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let mint = parse_ata(mint);
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let token_program = token_program
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.as_ref()
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.and_then(parse_ata)
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.or_else(|| parse_expr(quote!(anchor_spl::token::ID)));
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let seeds = match (wallet, mint, token_program) {
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(Some(w), Some(m), Some(tp)) => quote! { vec![#w, #tp, #m] },
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_ => return None,
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};
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let program = parse_expr(quote!(anchor_spl::associated_token::ID))
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.map(|program| quote! { Some(#program) })
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.unwrap();
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Some(quote! {
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Some(
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#idl::IdlPda {
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seeds: #seeds,
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program: #program,
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}
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)
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})
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});
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if let Some(pda) = pda {
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return pda;
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}
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quote! { None }
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}
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/// Parse a seeds constraint, extracting the `IdlSeed` types.
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@ -14,7 +14,8 @@ no-entrypoint = []
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no-idl = []
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cpi = ["no-entrypoint"]
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default = []
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idl-build = ["anchor-lang/idl-build"]
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idl-build = ["anchor-lang/idl-build", "anchor-spl/idl-build"]
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[dependencies]
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anchor-lang = { path = "../../../../lang" }
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anchor-spl = { path = "../../../../spl" }
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@ -4,6 +4,10 @@
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mod other;
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use anchor_lang::prelude::*;
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use anchor_spl::{
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associated_token::AssociatedToken,
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token::{Mint, Token, TokenAccount},
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};
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declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
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@ -34,6 +38,10 @@ pub mod pda_derivation {
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ctx.accounts.account.data = 1337;
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Ok(())
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}
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pub fn associated_token_resolution(_ctx: Context<AssociatedTokenResolution>) -> Result<()> {
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Ok(())
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}
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}
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#[derive(Accounts)]
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@ -115,6 +123,29 @@ pub struct Nested<'info> {
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account_nested: AccountInfo<'info>,
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}
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#[derive(Accounts)]
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pub struct AssociatedTokenResolution<'info> {
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#[account(
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init,
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payer = payer,
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mint::authority = payer,
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mint::decimals = 9,
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)]
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pub mint: Account<'info, Mint>,
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#[account(
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init,
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payer = payer,
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associated_token::authority = payer,
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associated_token::mint = mint,
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)]
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pub ata: Account<'info, TokenAccount>,
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#[account(mut)]
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pub payer: Signer<'info>,
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pub system_program: Program<'info, System>,
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pub token_program: Program<'info, Token>,
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pub associated_token_program: Program<'info, AssociatedToken>,
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}
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#[account]
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pub struct MyAccount {
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data: u64,
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@ -103,4 +103,13 @@ describe("typescript", () => {
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expect(called).is.true;
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});
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it("Can resolve associated token accounts", async () => {
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const mintKp = anchor.web3.Keypair.generate();
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await program.methods
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.associatedTokenResolution()
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.accounts({ mint: mintKp.publicKey })
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.signers([mintKp])
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.rpc();
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});
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});
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