feat(zkvms); Add zkm guest and it's macro

6 files changed, 59 insertions, 0 deletions

diff --git a/zkvms/zkm/guest/Cargo.toml b/zkvms/zkm/guest/Cargo.toml
new file mode 100644
index 0000000..36b84ba
--- /dev/null
+++ b/zkvms/zkm/guest/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "guest"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+
+[dependencies]
+# THESE DEPENDENCIES NEED TO BE PRESENT IN THE HOST CARGO.TOML
+zkm-runtime = { path = "/nix/store/h9s6kmnx7iafllv10wqhjix5kpyfsh37-zkm-unstable-2025-01-05/runtime/entrypoint" }
+
+zkp = { path = "./src/zkp" }
+wrapper_macro = { version = "0.1.0", path = "../wrapper_macro" }
diff --git a/zkvms/zkm/guest/guests b/zkvms/zkm/guest/guests
new file mode 120000
index 0000000..69bc8ed
--- /dev/null
+++ b/zkvms/zkm/guest/guests
@@ -0,0 +1 @@
+../../../guests
\ No newline at end of file
diff --git a/zkvms/zkm/guest/guests_macro b/zkvms/zkm/guest/guests_macro
new file mode 120000
index 0000000..143a0b5
--- /dev/null
+++ b/zkvms/zkm/guest/guests_macro
@@ -0,0 +1 @@
+../../../guests_macro
\ No newline at end of file
diff --git a/zkvms/zkm/guest/src/main.rs b/zkvms/zkm/guest/src/main.rs
new file mode 100644
index 0000000..21fb641
--- /dev/null
+++ b/zkvms/zkm/guest/src/main.rs
@@ -0,0 +1,14 @@
+#![no_std]
+#![no_main]
+
+use wrapper_macro::make_wrapper;
+
+extern crate alloc;
+use alloc::vec::Vec;
+use zkm_runtime::io::{ read, commit };
+
+zkm_runtime::entrypoint!(main);
+
+pub fn main() {
+    zkp::entrypoint_expr!()
+}
diff --git a/zkvms/zkm/wrapper_macro/Cargo.toml b/zkvms/zkm/wrapper_macro/Cargo.toml
new file mode 100644
index 0000000..14348e5
--- /dev/null
+++ b/zkvms/zkm/wrapper_macro/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "wrapper_macro"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+proc-macro = true
diff --git a/zkvms/zkm/wrapper_macro/src/lib.rs b/zkvms/zkm/wrapper_macro/src/lib.rs
new file mode 100644
index 0000000..86594e6
--- /dev/null
+++ b/zkvms/zkm/wrapper_macro/src/lib.rs
@@ -0,0 +1,23 @@
+use proc_macro::TokenStream;
+
+#[path = "../../../../guests_macro/src/parse_fn.rs"]
+mod parse_fn;
+use crate::parse_fn::{ split_fn, args_split, args_divide, group_streams };
+
+#[proc_macro]
+pub fn make_wrapper(item: TokenStream) -> TokenStream {
+    let (name, args, ret) = split_fn(&item);
+
+    let (patterns, types) = args_divide(&args);
+    let ts_patterns = group_streams(&patterns);
+    let ts_types = group_streams(&types);
+
+    let mut out = TokenStream::new();
+    // NOTE: The first read returns public data, the second returns private
+    out.extend(format!("let {} : {} = read();", ts_patterns, ts_types).parse::<TokenStream>());
+    out.extend(format!("commit::<{}>(&zkp::{}{});", ret, name, ts_patterns).parse::<TokenStream>());
+
+    let mut block = TokenStream::new();
+    block.extend(format!("{{ {} }}", out).parse::<TokenStream>());
+    block
+}