chore(close-account): rename UserState to User

Applies the repo-wide convention that state structs do not carry the
'State' suffix. The struct is the data; 'state' is implicit in being an
on-chain account (compare: Offer, not OfferState; Counter, not
CounterState).

Affected:
- Anchor: programs/close-account/src/state/user_state.rs renamed to
  state/user.rs; pub struct UserState -> pub struct User; module
  pub mod user_state; -> pub mod user;. All callers updated.
- Quasar: src/state.rs pub struct UserState -> pub struct User; the
  set_inner-generated UserStateInner becomes UserInner. All callers
  updated.
- basics/close-account/anchor/README.md updated to match.

Not changed:
- state.rs / state/ module and directory names keep their names. The
  'state' module is a fine container for state types; only the *struct*
  names are being renamed.

Verification: cargo check clean on both basics/close-account/anchor and
basics/close-account/quasar.

Author: mikemaccana-edwardbot

basics/close-account/anchor/README.md

@@ -1,18 +1,18 @@
 # Close Account
 
-Two instruction handlers: `create_user` initializes a PDA `UserState` account, and `close_user` closes it and returns the rent to the user.
+Two instruction handlers: `create_user` initializes a PDA `User` account, and `close_user` closes it and returns the rent to the user.
 
 1. `create_user` initializes the PDA with Anchor's `init` constraint:
 
    ```rust
    #[account(
        init,
        payer = user,
-       space = UserState::DISCRIMINATOR.len() + UserState::INIT_SPACE,
+       space = User::DISCRIMINATOR.len() + User::INIT_SPACE,
        seeds = [b"USER", user.key().as_ref()],
        bump,
    )]
-   pub user_account: Account<'info, UserState>,
+   pub user_account: Account<'info, User>,
    ```
 
    See [`programs/close-account/src/instructions/create_user.rs`](programs/close-account/src/instructions/create_user.rs).
@@ -26,7 +26,7 @@ Two instruction handlers: `create_user` initializes a PDA `UserState` account, a
        bump = user_account.bump,
        close = user, // close account and return lamports to user
    )]
-   pub user_account: Account<'info, UserState>,
+   pub user_account: Account<'info, User>,
    ```
 
    See [`programs/close-account/src/instructions/close_user.rs`](programs/close-account/src/instructions/close_user.rs).

basics/close-account/anchor/programs/close-account/src/instructions/close_user.rs

@@ -15,7 +15,7 @@ pub struct CloseUserContext<'info> {
         bump = user_account.bump,
         close = user, // close account and return lamports to user
     )]
-    pub user_account: Account<'info, UserState>,
+    pub user_account: Account<'info, User>,
 }
 
 pub fn handle_close_user(_context: Context<CloseUserContext>) -> Result<()> {

basics/close-account/anchor/programs/close-account/src/instructions/create_user.rs

@@ -9,19 +9,19 @@ pub struct CreateUserContext<'info> {
     #[account(
         init,
         payer = user,
-        space = UserState::DISCRIMINATOR.len() + UserState::INIT_SPACE,
+        space = User::DISCRIMINATOR.len() + User::INIT_SPACE,
         seeds = [
             b"USER",
             user.key().as_ref(),
         ],
         bump
     )]
-    pub user_account: Account<'info, UserState>,
+    pub user_account: Account<'info, User>,
     pub system_program: Program<'info, System>,
 }
 
 pub fn handle_create_user(context: Context<CreateUserContext>, name: String) -> Result<()> {
-    *context.accounts.user_account = UserState {
+    *context.accounts.user_account = User {
         bump: context.bumps.user_account,
         user: context.accounts.user.key(),
         name,

basics/close-account/anchor/programs/close-account/src/state/mod.rs

@@ -1,2 +1,2 @@
-pub mod user_state;
-pub use user_state::*;
+pub mod user;
+pub use user::*;

…ms/close-account/src/state/user_state.rs …programs/close-account/src/state/user.rsbasics/close-account/anchor/programs/close-account/src/state/user_state.rs renamed to basics/close-account/anchor/programs/close-account/src/state/user.rs basics/close-account/anchor/programs/close-account/src/state/user_state.rs renamed to basics/close-account/anchor/programs/close-account/src/state/user.rs

@@ -2,7 +2,7 @@ use anchor_lang::prelude::*;
 
 #[account]
 #[derive(InitSpace)] // automatically calculate the space required for the struct
-pub struct UserState {
+pub struct User {
     pub bump: u8,     // 1 byte
     pub user: Pubkey, // 32 bytes
     #[max_len(50)] // set a max length for the string

basics/close-account/quasar/src/instructions/close_user.rs

@@ -1,4 +1,4 @@
-use {crate::state::UserState, quasar_lang::prelude::*};
+use {crate::state::User, quasar_lang::prelude::*};
 
 /// Accounts for closing a user account.
 /// The `close(dest = user)` attribute mirrors Anchor's `close = user`: at the
@@ -9,7 +9,7 @@ pub struct CloseUser {
     #[account(mut)]
     pub user: Signer,
     #[account(mut, close(dest = user))]
-    pub user_account: Account<UserState>,
+    pub user_account: Account<User>,
 }
 
 #[inline(always)]

basics/close-account/quasar/src/instructions/create_user.rs

@@ -1,5 +1,5 @@
 use {
-    crate::state::{UserState, UserStateInner},
+    crate::state::{User, UserInner},
     quasar_lang::{prelude::*, sysvars::Sysvar},
 };
 
@@ -8,8 +8,8 @@ use {
 pub struct CreateUser {
     #[account(mut)]
     pub user: Signer,
-    #[account(mut, init, payer = user, address = UserState::seeds(user.address()))]
-    pub user_account: Account<UserState>,
+    #[account(mut, init, payer = user, address = User::seeds(user.address()))]
+    pub user_account: Account<User>,
     pub system_program: Program<SystemProgram>,
 }
 
@@ -22,7 +22,7 @@ pub fn handle_create_user(
     let user_address = *accounts.user.to_account_view().address();
     let rent = Rent::get()?;
     accounts.user_account.set_inner(
-        UserStateInner { bump, user: user_address, name },
+        UserInner { bump, user: user_address, name },
         accounts.user.to_account_view(),
         rent.lamports_per_byte(),
         rent.exemption_threshold_raw(),

basics/close-account/quasar/src/state.rs

@@ -4,7 +4,7 @@ use quasar_lang::prelude::*;
 /// Fixed fields (bump, user) must precede dynamic fields (name).
 #[account(discriminator = 1, set_inner)]
 #[seeds(b"USER", user: Address)]
-pub struct UserState {
+pub struct User {
     pub bump: u8,
     pub user: Address,
     pub name: String<50>,