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Introduce original_storage and original_storage_hash (#2211)

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Both functions will ignore any overlayed changes and access the backend
directly.
This commit is contained in:
Bastian Köcher
2019-04-04 16:56:16 +02:00
committed by Gav Wood
parent cb7a8161f5
commit 6920b169cd
5 changed files with 30 additions and 3 deletions
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substrate/core/state-machine/src/ext.rs
+10
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@@ -204,6 +204,16 @@ where
self.backend.storage_hash(key).expect(EXT_NOT_ALLOWED_TO_FAIL))
}
fn original_storage(&self, key: &[u8]) -> Option<Vec<u8>> {
let _guard = panic_handler::AbortGuard::new(true);
self.backend.storage(key).expect(EXT_NOT_ALLOWED_TO_FAIL)
}
fn original_storage_hash(&self, key: &[u8]) -> Option<H::Out> {
let _guard = panic_handler::AbortGuard::new(true);
self.backend.storage_hash(key).expect(EXT_NOT_ALLOWED_TO_FAIL)
}
fn child_storage(&self, storage_key: &[u8], key: &[u8]) -> Option<Vec<u8>> {
let _guard = panic_handler::AbortGuard::new(true);
self.overlay.child_storage(storage_key, key).map(|x| x.map(|x| x.to_vec())).unwrap_or_else(||