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runtime-api: add validation_code_hash API (#4629)

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https://github.com/paritytech/polkadot/issues/4524
This commit is contained in:
Sergei Shulepov
2021-12-28 21:16:03 +01:00
committed by GitHub
parent b49291dc76
commit 91aff5d341
13 changed files with 153 additions and 0 deletions
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polkadot/roadmap/implementers-guide/src/runtime-api/validation-code.md
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@@ -11,3 +11,11 @@ Fetch the validation code (past, present or future) by its hash.
```rust
fn validation_code_by_hash(at: Block, ValidationCodeHash) -> Option<ValidationCode>;
```
Fetch the validation code hash used by a para, making the given `OccupiedCoreAssumption`.
> ⚠️ This API was introduced in `ParachainHost` v2.
```rust
fn validation_code_hash(at: Block, ParaId, OccupiedCoreAssumption) -> Option<ValidationCodeHash>;
```