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Cargo fmt

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This commit is contained in:
losfair
2019-05-14 16:04:08 +08:00
parent 722ea39877
commit 32f9aee6fe
14 changed files with 408 additions and 305 deletions
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70
lib/runtime-core/src/loader.rs
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@ -1,24 +1,21 @@
use crate::{backend::RunnableModule, module::ModuleInfo, types::Value, vm::Ctx};
#[cfg(unix)]
use libc::{mmap, mprotect, munmap, MAP_ANON, MAP_PRIVATE, PROT_EXEC, PROT_READ, PROT_WRITE};
use std::{
fmt::Debug,
ops::{Deref, DerefMut},
};
use crate::{
backend::RunnableModule,
vm::Ctx,
module::ModuleInfo,
types::Value,
};
#[cfg(unix)]
use libc::{
mmap, mprotect, munmap, MAP_ANON, MAP_PRIVATE, PROT_EXEC, PROT_READ,
PROT_WRITE,
};
pub trait Loader {
type Instance: Instance;
type Error: Debug;
fn load(&self, rm: &dyn RunnableModule, module: &ModuleInfo, ctx: &Ctx) -> Result<Self::Instance, Self::Error>;
fn load(
&self,
rm: &dyn RunnableModule,
module: &ModuleInfo,
ctx: &Ctx,
) -> Result<Self::Instance, Self::Error>;
}
pub trait Instance {
@ -39,7 +36,12 @@ impl Loader for LocalLoader {
type Instance = LocalInstance;
type Error = String;
fn load(&self, rm: &dyn RunnableModule, _module: &ModuleInfo, _ctx: &Ctx) -> Result<Self::Instance, Self::Error> {
fn load(
&self,
rm: &dyn RunnableModule,
_module: &ModuleInfo,
_ctx: &Ctx,
) -> Result<Self::Instance, Self::Error> {
let code = rm.get_code().unwrap();
let mut code_mem = CodeMemory::new(code.len());
code_mem[..code.len()].copy_from_slice(code);
@ -67,11 +69,29 @@ impl Instance for LocalInstance {
match args.len() {
0 => (transmute::<_, extern "C" fn() -> u64>(addr))(),
1 => (transmute::<_, extern "C" fn(u64) -> u64>(addr))(args[0].to_u64()),
2 => (transmute::<_, extern "C" fn(u64, u64) -> u64>(addr))(args[0].to_u64(), args[1].to_u64()),
3 => (transmute::<_, extern "C" fn(u64, u64, u64) -> u64>(addr))(args[0].to_u64(), args[1].to_u64(), args[2].to_u64()),
4 => (transmute::<_, extern "C" fn(u64, u64, u64, u64) -> u64>(addr))(args[0].to_u64(), args[1].to_u64(), args[2].to_u64(), args[3].to_u64()),
5 => (transmute::<_, extern "C" fn(u64, u64, u64, u64, u64) -> u64>(addr))(args[0].to_u64(), args[1].to_u64(), args[2].to_u64(), args[3].to_u64(), args[4].to_u64()),
_ => return Err("too many arguments".into())
2 => (transmute::<_, extern "C" fn(u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
),
3 => (transmute::<_, extern "C" fn(u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
),
4 => (transmute::<_, extern "C" fn(u64, u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
args[3].to_u64(),
),
5 => (transmute::<_, extern "C" fn(u64, u64, u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
args[3].to_u64(),
args[4].to_u64(),
),
_ => return Err("too many arguments".into()),
}
})
}
@ -129,23 +149,21 @@ impl CodeMemory {
#[cfg(unix)]
impl Drop for CodeMemory {
fn drop(&mut self) {
unsafe { munmap(self.ptr as _, self.size); }
unsafe {
munmap(self.ptr as _, self.size);
}
}
}
impl Deref for CodeMemory {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
::std::slice::from_raw_parts(self.ptr, self.size)
}
unsafe { ::std::slice::from_raw_parts(self.ptr, self.size) }
}
}
impl DerefMut for CodeMemory {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
::std::slice::from_raw_parts_mut(self.ptr, self.size)
}
unsafe { ::std::slice::from_raw_parts_mut(self.ptr, self.size) }
}
}
}