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Add some documentation

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This commit is contained in:
Lachlan Sneff
2019-04-10 10:24:23 -07:00
parent b949de2560
commit cfd4758210
2 changed files with 16 additions and 0 deletions
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7
lib/runtime-core/src/backend.rs
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@ -86,6 +86,10 @@ pub trait ProtectedCaller: Send + Sync {
///
/// The existance of the Token parameter ensures that this can only be called from
/// within the runtime crate.
///
/// TODO(lachlan): Now that `get_wasm_trampoline` exists, `ProtectedCaller::call`
/// can be removed. That should speed up calls a little bit, since sanity checks
/// would only occur once.
fn call(
&self,
module: &ModuleInner,
@ -96,6 +100,9 @@ pub trait ProtectedCaller: Send + Sync {
_: Token,
) -> RuntimeResult<Vec<Value>>;
/// A wasm trampoline contains the necesarry data to dynamically call an exported wasm function.
/// Given a particular signature index, we are returned a trampoline that is matched with that
/// signature and an invoke function that can call the trampoline.
fn get_wasm_trampoline(&self, module: &ModuleInner, sig_index: SigIndex) -> Option<Wasm>;
fn get_early_trapper(&self) -> Box<dyn UserTrapper>;