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Changing to use WasmSlice for the caching

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This commit is contained in:
Pauan
2019-07-16 22:38:20 +02:00
parent f7e8e70684
commit 2ee4c54f00
7 changed files with 181 additions and 67 deletions
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67
crates/cli-support/src/js/outgoing.rs
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@ -130,6 +130,33 @@ impl<'a, 'b> Outgoing<'a, 'b> {
Ok(format!("v{}", i))
}
NonstandardOutgoing::CachedString {
offset,
length,
owned,
} => {
let ptr = self.arg(*offset);
let len = self.arg(*length);
let tmp = self.js.tmp();
self.js.typescript_required("string");
self.cx.expose_get_object();
self.cx.expose_get_string_from_wasm()?;
self.js.prelude(&format!(
"const v{tmp} = {ptr} === 0 ? getObject({len}) : getStringFromWasm({ptr}, {len});",
tmp = tmp,
ptr = ptr,
len = len,
));
if *owned {
self.prelude_free_cached_string(&ptr, &len)?;
}
Ok(format!("v{}", tmp))
}
NonstandardOutgoing::StackClosure {
a,
b,
@ -305,6 +332,35 @@ impl<'a, 'b> Outgoing<'a, 'b> {
self.js.prelude("}");
Ok(format!("v{}", i))
}
NonstandardOutgoing::OptionCachedString {
offset,
length,
owned,
} => {
let ptr = self.arg(*offset);
let len = self.arg(*length);
let tmp = self.js.tmp();
self.js.typescript_optional("string");
self.cx.expose_get_object();
self.cx.expose_get_string_from_wasm()?;
self.js.prelude(&format!("let v{};", tmp));
self.js.prelude(&format!(
"if ({ptr} === 0) {{ if ({len} !== 0) {{ v{tmp} = getObject({len}); }} }} else {{ v{tmp} = getStringFromWasm({ptr}, {len}); }}",
tmp = tmp,
ptr = ptr,
len = len,
));
if *owned {
self.prelude_free_cached_string(&ptr, &len)?;
}
Ok(format!("v{}", tmp))
}
}
}
@ -408,4 +464,15 @@ impl<'a, 'b> Outgoing<'a, 'b> {
));
self.cx.require_internal_export("__wbindgen_free")
}
fn prelude_free_cached_string(&mut self, ptr: &str, len: &str) -> Result<(), Error> {
self.js.prelude(&format!(
"if ({ptr} !== 0) {{ wasm.__wbindgen_free({ptr}, {len} * {size}); }}",
ptr = ptr,
len = len,
size = VectorKind::String.size(),
));
self.cx.require_internal_export("__wbindgen_free")
}
}