feat(stablecoin): initial stablecoin scaffold

closes #86

Cargo.lock

@@ -3016,6 +3016,32 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
 
+[[package]]
+name = "stablecoin-methods"
+version = "0.1.0"
+dependencies = [
+ "risc0-build",
+ "risc0-zkvm",
+ "stablecoin_core",
+]
+
+[[package]]
+name = "stablecoin_core"
+version = "0.1.0"
+dependencies = [
+ "borsh",
+ "nssa_core",
+ "serde",
+]
+
+[[package]]
+name = "stablecoin_program"
+version = "0.1.0"
+dependencies = [
+ "nssa_core",
+ "stablecoin_core",
+]
+
 [[package]]
 name = "strsim"
 version = "0.11.1"

Cargo.toml

@@ -9,6 +9,9 @@ members = [
     "ata/core",
     "ata",
     "ata/methods",
+    "stablecoin/core",
+    "stablecoin",
+    "stablecoin/methods",
     "integration_tests",
     "tools/idl-gen",
 ]
@@ -16,6 +19,7 @@ exclude = [
     "token/methods/guest",
     "amm/methods/guest",
     "ata/methods/guest",
+    "stablecoin/methods/guest",
 ]
 resolver = "2"
 
@@ -28,6 +32,8 @@ amm_core = { path = "amm/core" }
 amm_program = { path = "amm" }
 ata_core = { path = "ata/core" }
 ata_program = { path = "ata" }
+stablecoin_core = { path = "stablecoin/core" }
+stablecoin_program = { path = "stablecoin" }
 serde = { version = "1.0", features = ["derive"] }
 borsh = { version = "1.0", features = ["derive"] }
 risc0-zkvm = { version = "=3.0.5" }

artifacts/stablecoin-idl.json

@@ -0,0 +1,19 @@
+{
+  "version": "0.1.0",
+  "name": "stablecoin",
+  "instructions": [
+    {
+      "name": "noop",
+      "accounts": [
+        {
+          "name": "account",
+          "writable": false,
+          "signer": false,
+          "init": false
+        }
+      ],
+      "args": []
+    }
+  ],
+  "instruction_type": "stablecoin_core::Instruction"
+}

stablecoin/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "stablecoin_program"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0-rc1", features = ["host"] }
+stablecoin_core = { path = "core" }

stablecoin/core/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "stablecoin_core"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0-rc1", features = ["host"] }
+borsh = { version = "1.5", features = ["derive"] }
+serde = { version = "1.0", features = ["derive"] }

stablecoin/core/src/lib.rs

@@ -0,0 +1,6 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub enum Instruction {
+    Noop,
+}

stablecoin/methods/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "stablecoin-methods"
+version = "0.1.0"
+edition = "2021"
+
+[build-dependencies]
+risc0-build = "=3.0.5"
+
+[dependencies]
+risc0-zkvm = { version = "=3.0.5", features = ["std"] }
+stablecoin_core = { path = "../core" }
+
+[package.metadata.risc0]
+methods = ["guest"]

stablecoin/methods/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    risc0_build::embed_methods();
+}

stablecoin/methods/guest/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "stablecoin-guest"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+
+[[bin]]
+name = "stablecoin"
+path = "src/bin/stablecoin.rs"
+
+[dependencies]
+spel-framework = { git = "https://github.com/logos-co/spel.git", rev = "9e7f2754e1d4cdb3ea36e63b1ff86c3af55488d3", package = "spel-framework" }
+nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0-rc1" }
+risc0-zkvm = { version = "=3.0.5", default-features = false }
+stablecoin_core = { path = "../../core" }
+stablecoin_program = { path = "../..", package = "stablecoin_program" }
+serde = { version = "1.0", features = ["derive"] }
+borsh = "1.5"

stablecoin/methods/guest/src/bin/stablecoin.rs

@@ -0,0 +1,19 @@
+#![no_main]
+
+use nssa_core::account::AccountWithMetadata;
+use spel_framework::prelude::*;
+
+risc0_zkvm::guest::entry!(main);
+
+#[lez_program(instruction = "stablecoin_core::Instruction")]
+mod stablecoin {
+    #[allow(unused_imports)]
+    use super::*;
+
+    #[instruction]
+    pub fn noop(account: AccountWithMetadata) -> SpelResult {
+        Ok(SpelOutput::states_only(stablecoin_program::noop::noop(
+            account,
+        )))
+    }
+}

stablecoin/methods/src/lib.rs

@@ -0,0 +1 @@
+include!(concat!(env!("OUT_DIR"), "/methods.rs"));

stablecoin/src/lib.rs

@@ -0,0 +1,8 @@
+//! The Stablecoin Program implementation.
+
+pub use stablecoin_core as core;
+
+pub mod noop;
+
+#[cfg(test)]
+mod tests;

stablecoin/src/noop.rs

@@ -0,0 +1,5 @@
+use nssa_core::{account::AccountWithMetadata, program::AccountPostState};
+
+pub fn noop(account: AccountWithMetadata) -> Vec<AccountPostState> {
+    vec![AccountPostState::new(account.account)]
+}

stablecoin/src/tests.rs

@@ -0,0 +1,12 @@
+use nssa_core::account::{Account, AccountId, AccountWithMetadata};
+
+#[test]
+fn noop_returns_single_post_state() {
+    let account = AccountWithMetadata {
+        account: Account::default(),
+        is_authorized: false,
+        account_id: AccountId::new([0u8; 32]),
+    };
+    let post_states = crate::noop::noop(account);
+    assert_eq!(post_states.len(), 1);
+}