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

1 files changed, 23 insertions, 0 deletions

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
+}