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Add importable memories and dynamic memories

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This commit is contained in:
Lachlan Sneff
2019-01-25 15:28:54 -08:00
parent a20627964c
commit e4686e67c4
26 changed files with 992 additions and 694 deletions
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24
lib/runtime-core/src/import.rs
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@ -5,6 +5,16 @@ pub trait LikeNamespace {
fn get_export(&mut self, name: &str) -> Option<Export>;
}
pub trait IsExport {
fn to_export(&mut self) -> Export;
}
impl IsExport for Export {
fn to_export(&mut self) -> Export {
self.clone()
}
}
/// All of the import data used when instantiating.
///
/// It's suggested that you use the [`imports!`] macro
@ -74,7 +84,7 @@ impl ImportObject {
}
pub struct Namespace {
map: HashMap<String, Export>,
map: HashMap<String, Box<dyn IsExport>>,
}
impl Namespace {
@ -84,13 +94,19 @@ impl Namespace {
}
}
pub fn insert(&mut self, name: impl Into<String>, export: Export) -> Option<Export> {
self.map.insert(name.into(), export)
pub fn insert<S, E>(&mut self, name: S, export: E) -> Option<Box<dyn IsExport>>
where
S: Into<String>,
E: IsExport + 'static,
{
self.map.insert(name.into(), Box::new(export))
}
}
impl LikeNamespace for Namespace {
fn get_export(&mut self, name: &str) -> Option<Export> {
self.map.get(name).cloned()
self.map
.get_mut(name)
.map(|is_export| is_export.to_export())
}
}