109 lines
2.7 KiB
Rust
109 lines
2.7 KiB
Rust
#![feature(proc_macro_hygiene)]
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use anchor::prelude::*;
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// Define the program's RPC handlers.
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#[program]
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mod example {
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use super::*;
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#[access_control(not_zero(authority))]
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pub fn create_root(ctx: Context<CreateRoot>, authority: Pubkey, data: u64) -> ProgramResult {
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let root = &mut ctx.accounts.root;
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root.account.authority = authority;
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root.account.data = data;
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root.account.initialized = true;
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Ok(())
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}
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pub fn update_root(ctx: Context<UpdateRoot>, data: u64) -> ProgramResult {
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let root = &mut ctx.accounts.root;
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root.account.data = data;
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Ok(())
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}
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pub fn create_leaf(ctx: Context<CreateLeaf>, data: u64, custom: MyCustomType) -> ProgramResult {
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let leaf = &mut ctx.accounts.leaf;
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leaf.account.data = data;
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leaf.account.custom = custom;
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Ok(())
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}
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pub fn update_leaf(ctx: Context<UpdateLeaf>, data: u64) -> ProgramResult {
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let leaf = &mut ctx.accounts.leaf;
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leaf.account.data = data;
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Ok(())
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}
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}
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// Define the validated accounts for each handler.
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#[derive(Accounts)]
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pub struct CreateRoot<'info> {
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#[account(signer)]
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pub authority: AccountInfo<'info>,
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#[account(mut, "!root.initialized")]
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pub root: ProgramAccount<'info, Root>,
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}
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#[derive(Accounts)]
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pub struct UpdateRoot<'info> {
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#[account(signer)]
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pub authority: AccountInfo<'info>,
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#[account(mut, "root.initialized", "&root.authority == authority.key")]
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pub root: ProgramAccount<'info, Root>,
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}
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#[derive(Accounts)]
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pub struct CreateLeaf<'info> {
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#[account("root.initialized")]
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pub root: ProgramAccount<'info, Root>,
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#[account(mut, "!leaf.initialized")]
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pub leaf: ProgramAccount<'info, Leaf>,
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}
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#[derive(Accounts)]
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pub struct UpdateLeaf<'info> {
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#[account(signer)]
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pub authority: AccountInfo<'info>,
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#[account("root.initialized", "&root.authority == authority.key")]
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pub root: ProgramAccount<'info, Root>,
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#[account(mut, belongs_to = root, "!leaf.initialized")]
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pub leaf: ProgramAccount<'info, Leaf>,
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}
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// Define the program owned accounts.
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#[derive(AnchorSerialize, AnchorDeserialize)]
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pub struct Root {
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pub initialized: bool,
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pub authority: Pubkey,
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pub data: u64,
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}
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#[derive(AnchorSerialize, AnchorDeserialize)]
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pub struct Leaf {
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pub initialized: bool,
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pub root: Pubkey,
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pub data: u64,
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pub custom: MyCustomType,
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}
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// Define custom types.
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#[derive(AnchorSerialize, AnchorDeserialize)]
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pub struct MyCustomType {
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pub my_data: u64,
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pub key: Pubkey,
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}
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// Define any auxiliary access control checks.
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fn not_zero(authority: Pubkey) -> ProgramResult {
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if authority != Pubkey::new_from_array([0; 32]) {
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return Err(ProgramError::InvalidInstructionData);
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}
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Ok(())
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}
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