rust: allow empty code in evmc_execute()
@@ -337,10 +337,10 @@ fn build_execute_fn(names: &VMNameSet) -> proc_macro2::TokenStream {
{
use evmc_vm::EvmcVm;
- assert!(!msg.is_null());
- assert!(!context.is_null());
assert!(!instance.is_null());
- assert!(!code.is_null());
+ // TODO: context is optional in case of the "precompiles" capability
+ assert!(!context.is_null());
+ assert!(!msg.is_null());
let execution_context = unsafe {
::evmc_vm::ExecutionContext::new(
@@ -349,8 +349,14 @@ fn build_execute_fn(names: &VMNameSet) -> proc_macro2::TokenStream {
)
};
- let code_ref: &[u8] = unsafe {
+ let empty_code = [0u8;0];
+ let code_ref: &[u8] = if code.is_null() {
+ assert_eq!(code_size, 0);
+ &empty_code
+ } else {
+ unsafe {
::std::slice::from_raw_parts(code, code_size)
+ }
};
let container = unsafe {
