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#![warn(missing_docs)]
#![recursion_limit="128"]
#[macro_use]
mod native_executor;
mod wasm_runtime;
#[cfg(test)]
mod integration_tests;
pub use wasmi;
pub use native_executor::{with_externalities_safe, NativeExecutor, NativeExecutionDispatch};
pub use sp_version::{RuntimeVersion, NativeVersion};
pub use codec::Codec;
#[doc(hidden)]
pub use sp_core::traits::Externalities;
#[doc(hidden)]
pub use sp_wasm_interface;
pub use wasm_runtime::WasmExecutionMethod;
pub use sc_executor_common::{error, sandbox};
pub fn call_in_wasm<HF: sp_wasm_interface::HostFunctions>(
function: &str,
call_data: &[u8],
execution_method: WasmExecutionMethod,
ext: &mut dyn Externalities,
code: &[u8],
heap_pages: u64,
allow_missing_func_imports: bool,
) -> error::Result<Vec<u8>> {
call_in_wasm_with_host_functions(
function,
call_data,
execution_method,
ext,
code,
heap_pages,
HF::host_functions(),
allow_missing_func_imports,
)
}
pub fn call_in_wasm_with_host_functions(
function: &str,
call_data: &[u8],
execution_method: WasmExecutionMethod,
ext: &mut dyn Externalities,
code: &[u8],
heap_pages: u64,
host_functions: Vec<&'static dyn sp_wasm_interface::Function>,
allow_missing_func_imports: bool,
) -> error::Result<Vec<u8>> {
let instance = wasm_runtime::create_wasm_runtime_with_code(
execution_method,
heap_pages,
code,
host_functions,
allow_missing_func_imports,
)?;
let mut instance = std::panic::AssertUnwindSafe(instance);
with_externalities_safe(ext, move || instance.call(function, call_data)).and_then(|r| r)
}
pub trait RuntimeInfo {
fn native_version(&self) -> &NativeVersion;
fn runtime_version<E: Externalities> (&self, ext: &mut E) -> error::Result<RuntimeVersion>;
}
#[cfg(test)]
mod tests {
use super::*;
use sc_runtime_test::WASM_BINARY;
use sp_io::TestExternalities;
#[test]
fn call_in_interpreted_wasm_works() {
let mut ext = TestExternalities::default();
let mut ext = ext.ext();
let res = call_in_wasm::<sp_io::SubstrateHostFunctions>(
"test_empty_return",
&[],
WasmExecutionMethod::Interpreted,
&mut ext,
&WASM_BINARY,
8,
true,
).unwrap();
assert_eq!(res, vec![0u8; 0]);
}
}