Confidential-Creator-Support

use anchor_lang::prelude::*;use anchor_spl::associated_token::get_associated_token_address_with_program_id;use anchor_spl::token_2022; use crate::errors::CcsError;use crate::events::Pledged;use crate::introspect::{find_confidential_transfer, ExpectedTransfer};use crate::periods::{extend_expiry, MAX_PERIODS};use crate::state::{Config, Creator, Pledge}; #[derive(Accounts)]pub struct MakePledge<'info> {    #[account(mut)]    pub supporter: Signer<'info>,    #[account(seeds = [Config::SEED], bump = config.bump)]    pub config: Account<'info, Config>,    #[account(        mut,        seeds = [Creator::SEED, creator.wallet.as_ref()],        bump = creator.bump,    )]    pub creator: Account<'info, Creator>,    #[account(        init_if_needed,

1. Line 3 use anchor_spl::token_2022;: Targets the Token-2022 program instead of the original Token Program.
2. Line 14 pub supporter: Signer<'info>,: Requires this account to have signed the transaction.
3. Line 15 #[account(seeds = [Config::SEED], bump = config.bump)]: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
4. Line 15 #[account(seeds = [Config::SEED], bump = config.bump)]: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.
5. Line 24 init_if_needed,: Creates the account only if it doesn't exist. Watch for re-initialisation bugs.

use anchor_lang::prelude::*; use crate::errors::CcsError;use crate::events::CreatorRegistered;use crate::state::{    is_valid_handle, Creator, Handle, DESCRIPTION_MAX_LEN, HANDLE_LEN, NAME_MAX_LEN,}; #[derive(Accounts)]#[instruction(handle: String)]pub struct RegisterCreator<'info> {    #[account(mut)]    pub wallet: Signer<'info>,    #[account(        init,        payer = wallet,        space = 8 + Creator::INIT_SPACE,        seeds = [Creator::SEED, wallet.key().as_ref()],        bump,    )]    pub creator: Account<'info, Creator>,    #[account(        init,        payer = wallet,

1. Line 13 pub wallet: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 15 init,: Creates and pays for a new account. Space and payer must be specified.
3. Line 18 seeds = [Creator::SEED, wallet.key().as_ref()],: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
4. Line 19 bump,: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

use anchor_lang::prelude::*; use crate::events::VisibilityChanged;use crate::state::Pledge; #[derive(Accounts)]pub struct SetVisibility<'info> {    pub supporter: Signer<'info>,    #[account(        mut,        seeds = [Pledge::SEED, pledge.creator.as_ref(), supporter.key().as_ref()],        bump = pledge.bump,    )]    pub pledge: Account<'info, Pledge>,} pub fn set_visibility_handler(ctx: Context<SetVisibility>, show_publicly: bool) -> Result<()> {    let pledge = &mut ctx.accounts.pledge;    pledge.show_publicly = show_publicly;     emit!(VisibilityChanged {        creator: pledge.creator,        supporter: pledge.supporter,        show_publicly,

1. Line 8 pub supporter: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 11 seeds = [Pledge::SEED, pledge.creator.as_ref(), supporter.key().as_ref()],: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
3. Line 12 bump = pledge.bump,: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.
4. Line 21 emit!(VisibilityChanged {: Emits an Anchor event that clients can parse from the logs.

use anchor_lang::prelude::*; use crate::errors::CcsError;use crate::events::CreatorUpdated;use crate::state::{Creator, DESCRIPTION_MAX_LEN, NAME_MAX_LEN}; #[derive(Accounts)]pub struct UpdateCreator<'info> {    pub wallet: Signer<'info>,    #[account(        mut,        seeds = [Creator::SEED, wallet.key().as_ref()],        bump = creator.bump,    )]    pub creator: Account<'info, Creator>,} pub fn update_creator_handler(    ctx: Context<UpdateCreator>,    name: String,    description: String,    suggested_amount: u64,) -> Result<()> {    require!(name.len() <= NAME_MAX_LEN, CcsError::NameTooLong);

1. Line 9 pub wallet: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 12 seeds = [Creator::SEED, wallet.key().as_ref()],: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
3. Line 13 bump = creator.bump,: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.
4. Line 24 require!(name.len() <= NAME_MAX_LEN, CcsError::NameTooLong);: An explicit validation that aborts the instruction with an error.