From 8bacdabd579c592f2695602262057dd6095a924f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marijan=20Petri=C4=8Devi=C4=87?=
 <marijan.petricevic94@gmail.com>
Date: Tue, 3 Sep 2024 16:02:00 +0200
Subject: [PATCH] dummy-contract: add for testing purposes

---
 dummy-contract/Cargo.lock  | 758 +++++++++++++++++++++++++++++++++++++
 dummy-contract/Cargo.toml  |   9 +
 dummy-contract/src/main.rs |  41 ++
 flake.nix                  |  33 +-
 4 files changed, 840 insertions(+), 1 deletion(-)
 create mode 100644 dummy-contract/Cargo.lock
 create mode 100644 dummy-contract/Cargo.toml
 create mode 100644 dummy-contract/src/main.rs

diff --git a/dummy-contract/Cargo.lock b/dummy-contract/Cargo.lock
new file mode 100644
index 0000000..e4f6342
--- /dev/null
+++ b/dummy-contract/Cargo.lock
@@ -0,0 +1,758 @@
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+checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
+
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+checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde-map-to-array"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c14b52efc56c711e0dbae3f26e0cc233f5dac336c1bf0b07e1b7dc2dca3b2cc7"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "serde_bytes"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "387cc504cb06bb40a96c8e04e951fe01854cf6bc921053c954e4a606d9675c6a"
+dependencies = [
+ "serde",
+]
+
+[[package]]
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+checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.77",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
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+ "digest 0.10.7",
+ "rand_core",
+]
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+ "base64ct",
+ "der",
+]
+
+[[package]]
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+
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+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
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+dependencies = [
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
+[[package]]
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+
+[[package]]
+name = "uint"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76f64bba2c53b04fcab63c01a7d7427eadc821e3bc48c34dc9ba29c501164b52"
+dependencies = [
+ "byteorder",
+ "crunchy",
+ "hex",
+ "static_assertions",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
+[[package]]
+name = "version_check"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
+
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
diff --git a/dummy-contract/Cargo.toml b/dummy-contract/Cargo.toml
new file mode 100644
index 0000000..47b059d
--- /dev/null
+++ b/dummy-contract/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "dummy-contract"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+casper-contract = { git = "https://github.com/casper-network/casper-node", branch = "release-2.0.0-rc4", default-features = false}
+casper-types= { git = "https://github.com/casper-network/casper-node", branch = "release-2.0.0-rc4", default-features = false }
+serde = "1"
diff --git a/dummy-contract/src/main.rs b/dummy-contract/src/main.rs
new file mode 100644
index 0000000..b6bb1b8
--- /dev/null
+++ b/dummy-contract/src/main.rs
@@ -0,0 +1,41 @@
+#![no_std]
+#![no_main]
+
+use casper_contract::contract_api::storage;
+use casper_types::{
+    addressable_entity::NamedKeys, CLType, EntryPoint, EntryPointAccess, EntryPointPayment,
+    EntryPointType, EntryPoints,
+};
+extern crate alloc;
+use alloc::{string::ToString, vec};
+
+#[no_mangle]
+pub extern "C" fn dummy() {
+    // this doesn't do anything, but you can call it.
+}
+
+#[no_mangle]
+pub extern "C" fn call() {
+    let entry_points = {
+        let dummy = EntryPoint::new(
+            "dummy",
+            vec![],
+            CLType::Unit,
+            EntryPointAccess::Public,
+            EntryPointType::Called,
+            EntryPointPayment::Caller,
+        );
+
+        let mut entry_points = EntryPoints::new();
+        entry_points.add_entry_point(dummy);
+        entry_points
+    };
+    let named_keys = NamedKeys::new();
+    storage::new_contract(
+        entry_points,
+        Some(named_keys),
+        Some("contract-hash".to_string()),
+        Some("contract-package-hash".to_string()),
+        None,
+    );
+}
diff --git a/flake.nix b/flake.nix
index 38851b4..69f72e3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,7 +41,10 @@
       ];
       perSystem = { self', inputs', pkgs, lib, ... }:
         let
-          rustToolchain = inputs'.fenix.packages.stable.toolchain;
+          rustToolchain = with inputs'.fenix.packages; combine [
+            stable.toolchain
+            targets.wasm32-unknown-unknown.stable.rust-std
+          ];
           craneLib = (inputs.crane.mkLib pkgs).overrideToolchain rustToolchain;
 
           cctl = inputs'.cctl.packages.cctl;
@@ -77,6 +80,31 @@
               cctl
             ];
           };
+
+          contractAttrs = {
+            pname = "dummy-contract";
+            src = lib.cleanSourceWith {
+              src = lib.fileset.toSource {
+                root = ./dummy-contract;
+                fileset = lib.fileset.unions [
+                  ./dummy-contract
+                ];
+              };
+            };
+            cargoExtraArgs = "--target wasm32-unknown-unknown";
+            CARGO_TARGET_WASM32_UNKNOWN_UNKNOWN_LINKER = "lld";
+            nativeBuildInputs = [ pkgs.binaryen pkgs.lld ];
+            doCheck = false;
+            # optimize wasm
+            postInstall = ''
+              directory="$out/bin/"
+              for file in "$directory"*.wasm; do
+                if [ -e "$file" ]; then
+                  wasm-opt -Oz --strip-debug --signext-lowering "$file"
+                fi
+              done
+            '';
+          };
         in
         {
           devShells.default = pkgs.mkShell {
@@ -85,6 +113,9 @@
           };
 
           packages = {
+            # Used for testing purposes
+            dummy-contract = craneLib.buildPackage contractAttrs;
+
             cctl-rs-deps = craneLib.buildDepsOnly cctlAttrs;
 
             cctl-rs-docs = craneLib.cargoDoc (cctlAttrs // {