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|
use proc_macro::TokenStream;
use proc_macro2::TokenStream as TokenStream2;
use quote::quote;
#[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();
out.extend(format!("zkp::{}{}", name, ts_patterns).parse::<TokenStream>());
let mut func = TokenStream::new();
func.extend(format!("#[jolt::provable(max_input_size = 100000)] fn guest{} -> {} {{ {} }}", args, ret, out).parse::<TokenStream>());
func.extend(make_build_fn(patterns.clone(), types.clone(), ts_patterns.clone(), ts_types.clone(), ret.clone()));
func.extend(make_preprocess_fn(patterns, types, ts_patterns, ts_types, ret));
func
}
// Modified copies of
// https://github.com/a16z/jolt/blob/fa45507aaddb1815bafd54332e4b14173a7f8699/jolt-sdk/macros/src/lib.rs
fn make_build_fn(
patterns: Vec<TokenStream>,
types: Vec<TokenStream>,
ts_patterns: TokenStream,
ts_types: TokenStream,
ret: TokenStream,
) -> TokenStream {
let patterns = patterns.iter().map(|p| TokenStream2::from(p.clone()));
let types = types.iter().map(|t| TokenStream2::from(t.clone()));
let ts_patterns = TokenStream2::from(ts_patterns);
let ts_types = TokenStream2::from(ts_types);
let ret = if ret.is_empty() { quote!{ () } } else { TokenStream2::from(ret) };
let imports = make_imports();
quote! {
#[cfg(all(not(target_arch = "wasm32"), not(feature = "guest")))]
pub fn guest_closures(elf_path: String) -> (
impl Fn(#ts_types) -> (#ret, jolt::JoltHyperKZGProof) + Sync + Send,
impl Fn(jolt::JoltHyperKZGProof) -> bool + Sync + Send
) {
#imports
let (program, preprocessing) = preprocess_guest_elf(elf_path);
let program = std::sync::Arc::new(program);
let preprocessing = std::sync::Arc::new(preprocessing);
let program_cp = program.clone();
let preprocessing_cp = preprocessing.clone();
let prove_closure = move |args: #ts_types| {
let program = (*program).clone();
let preprocessing = (*preprocessing).clone();
let #ts_patterns = args;
prove_guest(program, preprocessing, #(#patterns),*)
};
let verify_closure = move |proof: jolt::JoltHyperKZGProof| {
let program = (*program_cp).clone();
let preprocessing = (*preprocessing_cp).clone();
RV32IJoltVM::verify(preprocessing, proof.proof, proof.commitments, None).is_ok()
};
(prove_closure, verify_closure)
}
}.into()
}
fn make_preprocess_fn(
patterns: Vec<TokenStream>,
types: Vec<TokenStream>,
ts_patterns: TokenStream,
ts_types: TokenStream,
ret: TokenStream,
) -> TokenStream {
let patterns = patterns.iter().map(|p| TokenStream2::from(p.clone()));
let types = types.iter().map(|t| TokenStream2::from(t.clone()));
let ts_patterns = TokenStream2::from(ts_patterns);
let ts_types = TokenStream2::from(ts_types);
let ret = if ret.is_empty() { quote!{ () } } else { TokenStream2::from(ret) };
let imports = make_imports();
quote! {
#[cfg(all(not(target_arch = "wasm32"), not(feature = "guest")))]
pub fn preprocess_guest_elf(elf_path: String) -> (
jolt::host::Program,
jolt::JoltPreprocessing<4, jolt::F, jolt::PCS, jolt::ProofTranscript>
) {
#imports
use std::{ path::PathBuf, str::FromStr };
let mut program = Program::new("guest");
program.set_func("guest");
program.elf = Some(PathBuf::from_str(&elf_path).unwrap());
program.set_std(true);
program.set_memory_size(10485760);
program.set_stack_size(4096);
program.set_max_input_size(100000u64);
program.set_max_output_size(4096u64);
let (bytecode, memory_init) = program.decode();
let memory_layout = MemoryLayout::new(100000u64, 4096u64);
let preprocessing: JoltPreprocessing<4, jolt::F, jolt::PCS, jolt::ProofTranscript> =
RV32IJoltVM::preprocess(
bytecode,
memory_layout,
memory_init,
1 << 20,
1 << 20,
1 << 24
);
(program, preprocessing)
}
}.into()
}
fn make_imports() -> TokenStream2 {
quote! {
#[cfg(not(feature = "guest"))]
use jolt::{
JoltField,
host::Program,
JoltPreprocessing,
Jolt,
JoltCommitments,
ProofTranscript,
RV32IJoltVM,
RV32I,
RV32IJoltProof,
BytecodeRow,
MemoryOp,
MemoryLayout,
MEMORY_OPS_PER_INSTRUCTION,
instruction::add::ADDInstruction,
tracer,
};
}
}
|
