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Replace JSON metadata with custom metadata structures (#766)

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* Move module metadata from json string to custom metadata

* Revisit the metadata structures

1. Move the structures into the metadata crate.
2. Switch to using Cow/MaybeOwnedArray to support Encode/Decode

* Adapt to new metadata structures

* Convert event json metadata to new metadata structures

* Convert storage json metadata to new metadata structures

* Convert runtime metadata from json to new metadata structs

* Implements new metadata structures in client and runtime

* Fixes errors on `no_std`

* Fixes errors after rebasing master

* Do not use `Cow` anymore in metadata

Also replace `String` with our own type definition `StringBuf`.
This fixes compilation on `no_std`.

* Wrap `RuntimeMetadata` in `RuntimeMetadataVersioned` to support versioning

* Move metadata into `srml` and make core unaware of the implementation
This commit is contained in:
Bastian Köcher
2018-09-20 07:35:32 +02:00
committed by Gav Wood
parent 3c0da110f3
commit 5d64be26c3
22 changed files with 1138 additions and 843 deletions
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substrate/core/rpc/src/state/mod.rs
+2 -2
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@@ -145,8 +145,8 @@ impl<B, E, Block> StateApi<Block::Hash> for State<B, E, Block> where
fn metadata(&self, block: Trailing<Block::Hash>) -> Result<serde_json::Value> {
let block = self.unwrap_or_best(block)?;
let metadata = self.client.json_metadata(&BlockId::Hash(block))?;
serde_json::from_str(&metadata).map_err(Into::into)
let metadata = self.client.metadata(&BlockId::Hash(block))?;
serde_json::to_value(metadata).map_err(Into::into)
}
fn query_storage(&self, keys: Vec<StorageKey>, from: Block::Hash, to: Trailing<Block::Hash>) -> Result<Vec<StorageChangeSet<Block::Hash>>> {