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Document `resume_execution` on conditions for `is_resumable` and `resumable_value_type`

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Wei Tang 2018-07-09 23:24:05 +08:00
parent 9044d42064
commit add6037e10
1 changed files with 7 additions and 0 deletions
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7
src/func.rs
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@ -266,6 +266,13 @@ impl<'args> FuncInvocation<'args> {
}
/// Resume an execution if a previous trap of Host kind happened.
///
/// `return_val` must be of the value type [`resumable_value_type`], defined by the host function import. Otherwise,
/// `UnexpectedSignature` trap will be returned. The current invocation must also be resumable
/// [`is_resumable`]. Otherwise, a `NotResumable` error will be returned.
///
/// [`resumable_value_type`]: struct.FuncInvocation.html#method.resumable_value_type
/// [`is_resumable`]: struct.FuncInvocation.html#method.is_resumable
pub fn resume_execution<'externals, E: Externals + 'externals>(&mut self, return_val: Option<RuntimeValue>, externals: &'externals mut E) -> Result<Option<RuntimeValue>, ResumableError> {
match self.kind {
FuncInvocationKind::Internal(ref mut interpreter) => {