Use compiler hints from pinocchio

Author: febo

p-interface/src/lib.rs

@@ -8,35 +8,3 @@ pub mod state;
 pub mod program {
     pinocchio_pubkey::declare_id!("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA");
 }
-
-/// A "dummy" function with a hint to the compiler that it is unlikely to be
-/// called.
-///
-/// This function is used as a hint to the compiler to optimize other code paths
-/// instead of the one where the function is used.
-#[cold]
-pub const fn cold_path() {}
-
-/// Return the given `bool` value with a hint to the compiler that `true` is the
-/// likely case.
-#[inline(always)]
-pub const fn likely(b: bool) -> bool {
-    if b {
-        true
-    } else {
-        cold_path();
-        false
-    }
-}
-
-/// Return a given `bool` value with a hint to the compiler that `false` is the
-/// likely case.
-#[inline(always)]
-pub const fn unlikely(b: bool) -> bool {
-    if b {
-        cold_path();
-        true
-    } else {
-        false
-    }
-}

p-interface/src/state/account.rs

@@ -1,7 +1,6 @@
 use {
     super::{account_state::AccountState, COption, Initializable, Transmutable},
-    crate::likely,
-    pinocchio::{program_error::ProgramError, pubkey::Pubkey},
+    pinocchio::{hint::likely, program_error::ProgramError, pubkey::Pubkey},
 };
 
 /// Incinerator address.

p-token/src/processor/mod.rs

@@ -1,7 +1,7 @@
 use {
     core::{slice::from_raw_parts, str::from_utf8_unchecked},
     pinocchio::{
-        account_info::AccountInfo, program_error::ProgramError, pubkey::Pubkey,
+        account_info::AccountInfo, hint::unlikely, program_error::ProgramError, pubkey::Pubkey,
         syscalls::sol_memcpy_, ProgramResult,
     },
     pinocchio_token_interface::{
@@ -12,7 +12,6 @@ use {
             multisig::{Multisig, MAX_SIGNERS},
             Transmutable,
         },
-        unlikely,
     },
 };
 

p-token/src/processor/shared/transfer.rs

@@ -1,10 +1,11 @@
 use {
     crate::processor::{check_account_owner, validate_owner},
-    pinocchio::{account_info::AccountInfo, program_error::ProgramError, ProgramResult},
+    pinocchio::{
+        account_info::AccountInfo, hint::unlikely, program_error::ProgramError, ProgramResult,
+    },
     pinocchio_token_interface::{
         error::TokenError,
         state::{account::Account, load, load_mut, load_mut_unchecked, mint::Mint},
-        unlikely,
     },
 };