96 lines
1.7 KiB
Rust
96 lines
1.7 KiB
Rust
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//! Bare rust wrapper around evmjit
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//!
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//! Requires latest version of Ethereum EVM JIT. https://github.com/debris/evmjit
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extern crate libc;
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use std::ptr;
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#[repr(C)]
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pub struct JitI256 {
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pub words: [u64; 4]
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}
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impl JitI256 {
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pub fn new() -> JitI256 {
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JitI256 {
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words: [0; 4]
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}
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}
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}
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#[repr(C)]
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pub struct JitRuntimeData {
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pub gas: i64,
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pub gas_price: i64,
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pub call_data: *const libc::c_char,
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pub call_data_size: u64,
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pub address: JitI256,
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pub caller: JitI256,
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pub origin: JitI256,
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pub call_value: JitI256,
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pub coinbase: JitI256,
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pub difficulty: JitI256,
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pub gas_limit: JitI256,
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pub number: u64,
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pub timestamp: i64,
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pub code: *const libc::c_char,
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pub code_size: u64,
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pub code_hash: JitI256
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}
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impl JitRuntimeData {
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pub fn new() -> JitRuntimeData {
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JitRuntimeData {
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gas: 0,
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gas_price: 0,
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call_data: ptr::null(),
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call_data_size: 0,
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address: JitI256::new(),
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caller: JitI256::new(),
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origin: JitI256::new(),
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call_value: JitI256::new(),
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coinbase: JitI256::new(),
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difficulty: JitI256::new(),
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gas_limit: JitI256::new(),
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number: 0,
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timestamp: 0,
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code: ptr::null(),
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code_size: 0,
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code_hash: JitI256::new()
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}
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}
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}
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#[repr(C)]
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#[derive(Debug)]
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pub enum JitReturnCode {
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Stop = 0,
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Return = 1,
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Suicide = 2,
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OutOfGas = -1,
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LLVMError = -101,
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UnexpectedError = -111
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}
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#[derive(Copy, Clone)]
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pub enum JitContext {}
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#[link(name="evmjit")]
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extern "C" {
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pub fn evmjit_create(data: JitRuntimeData, env: u8) -> JitContext;
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pub fn evmjit_exec(context: JitContext) -> JitReturnCode;
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pub fn evmjit_destroy(context: JitContext);
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}
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#[test]
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fn it_works() {
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unsafe {
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let context = evmjit_create(JitRuntimeData::new(), 0);
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let _result = evmjit_exec(context);
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evmjit_destroy(context);
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}
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}
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