From c576da70289f05c86be7c86fdc12b6dd0b82de4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Mei=C3=9Fner?= <AlexanderMeissner@gmx.net>
Date: Tue, 25 Apr 2023 20:01:29 +0200
Subject: [PATCH] Removes built-ins from the SDK.

---
 sdk/src/builtins.rs | 77 ---------------------------------------------
 sdk/src/lib.rs      |  1 -
 2 files changed, 78 deletions(-)
 delete mode 100644 sdk/src/builtins.rs

diff --git a/sdk/src/builtins.rs b/sdk/src/builtins.rs
deleted file mode 100644
index e837abcdb26e0d..00000000000000
--- a/sdk/src/builtins.rs
+++ /dev/null
@@ -1,77 +0,0 @@
-//! Solana helper macros for declaring built-in programs.
-
-#[rustversion::since(1.46.0)]
-#[macro_export]
-macro_rules! declare_builtin_name {
-    ($name:ident, $id:path, $entrypoint:expr) => {
-        #[macro_export]
-        macro_rules! $name {
-            () => {
-                // Subtle:
-                // The outer `declare_builtin_name!` macro may be expanded in another
-                // crate, causing the macro `$name!` to be defined in that
-                // crate. We want to emit a call to `$crate::id()`, and have
-                // `$crate` be resolved in the crate where `$name!` gets defined,
-                // *not* in this crate (where `declare_builtin_name! is defined).
-                //
-                // When a macro_rules! macro gets expanded, any $crate tokens
-                // in its output will be 'marked' with the crate they were expanded
-                // from. This includes nested macros like our macro `$name` - even
-                // though it looks like a separate macro, Rust considers it to be
-                // just another part of the output of `declare_program!`.
-                //
-                // We pass `$name` as the second argument to tell `respan!` to
-                // apply use the `Span` of `$name` when resolving `$crate::id`.
-                // This causes `$crate` to behave as though it was written
-                // at the same location as the `$name` value passed
-                // to `declare_builtin_name!` (e.g. the 'foo' in
-                // `declare_builtin_name(foo)`
-                //
-                // See the `respan!` macro for more details.
-                // This should use `crate::respan!` once
-                // https://github.com/rust-lang/rust/pull/72121 is merged:
-                // see https://github.com/solana-labs/solana/issues/10933.
-                // For now, we need to use `::solana_sdk`
-                //
-                // `respan!` respans the path `$crate::id`, which we then call (hence the extra
-                // parens)
-                (
-                    stringify!($name).to_string(),
-                    ::solana_sdk::respan!($crate::$id, $name)(),
-                    $entrypoint,
-                )
-            };
-        }
-    };
-}
-
-#[rustversion::not(since(1.46.0))]
-#[macro_export]
-macro_rules! declare_builtin_name {
-    ($name:ident, $id:path, $entrypoint:expr) => {
-        #[macro_export]
-        macro_rules! $name {
-            () => {
-                (stringify!($name).to_string(), $crate::$id(), $entrypoint)
-            };
-        }
-    };
-}
-
-/// Convenience macro to declare a built-in program.
-///
-/// bs58_string: bs58 string representation the program's id
-/// name: Name of the program
-/// entrypoint: Program's entrypoint, must be of `type Entrypoint`
-/// id: Path to the program id access function, used if this macro is not
-///     called in `src/lib`
-#[macro_export]
-macro_rules! declare_builtin {
-    ($bs58_string:expr, $name:ident, $entrypoint:expr) => {
-        $crate::declare_builtin!($bs58_string, $name, $entrypoint, id);
-    };
-    ($bs58_string:expr, $name:ident, $entrypoint:expr, $id:path) => {
-        $crate::declare_id!($bs58_string);
-        $crate::declare_builtin_name!($name, $id, $entrypoint);
-    };
-}
diff --git a/sdk/src/lib.rs b/sdk/src/lib.rs
index a18ac583a8e3f6..acea5822b7a85b 100644
--- a/sdk/src/lib.rs
+++ b/sdk/src/lib.rs
@@ -57,7 +57,6 @@ pub use solana_program::{
 
 pub mod account;
 pub mod account_utils;
-pub mod builtins;
 pub mod client;
 pub mod commitment_config;
 pub mod compute_budget;