remove panic handlers (#377)

Author: qalisander

.github/workflows/check-wasm.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: nightly-2024-07-25
 
       - uses: Swatinem/rust-cache@v2
 

.github/workflows/e2e-tests.yml

@@ -32,7 +32,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: nightly-2024-07-25
 
       - uses: Swatinem/rust-cache@v2
         with:

.github/workflows/gas-bench.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: nightly-2024-07-25
 
       - uses: Swatinem/rust-cache@v2
         with:

contracts/Cargo.toml

@@ -31,7 +31,7 @@ rand.workspace = true
 std = []
 
 [lib]
-crate-type = ["lib", "cdylib"]
+crate-type = ["lib"]
 
 [lints]
 workspace = true

contracts/src/lib.rs

@@ -47,9 +47,3 @@ extern crate alloc;
 pub mod access;
 pub mod token;
 pub mod utils;
-
-#[cfg(all(target_arch = "wasm32", not(feature = "std")))]
-#[panic_handler]
-fn panic(_info: &core::panic::PanicInfo) -> ! {
-    loop {}
-}

examples/access-control/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_std, no_main)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/basic/token/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/ecdsa/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_std, no_main)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/erc20-permit/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/erc20/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/erc721-consecutive/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloy_primitives::{Address, U256};

examples/erc721-metadata/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::{string::String, vec::Vec};

examples/erc721/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_main, no_std)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;

examples/merkle-proofs/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(feature = "std"), no_std, no_main)]
+#![cfg_attr(not(feature = "std"), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;
@@ -14,12 +14,6 @@ use stylus_sdk::{
     prelude::{entrypoint, public, sol_storage},
 };
 
-#[cfg(target_arch = "wasm32")]
-#[panic_handler]
-fn panic(_info: &core::panic::PanicInfo) -> ! {
-    loop {}
-}
-
 sol! {
     error MerkleProofInvalidMultiProofLength();
     error MerkleProofInvalidRootChild();

examples/ownable/src/lib.rs

@@ -1,4 +1,4 @@
-#![cfg_attr(not(test), no_std, no_main)]
+#![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
 use alloc::vec::Vec;