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Sergei Shulepov 91aff5d341 runtime-api: add validation_code_hash API (#4629 )

This is the first step to close
https://github.com/paritytech/polkadot/issues/4524

2021-12-28 20:16:03 +00:00

Validation Code

Fetch the validation code used by a para, making the given OccupiedCoreAssumption.

fn validation_code(at: Block, ParaId, OccupiedCoreAssumption) -> Option<ValidationCode>;

Fetch the validation code (past, present or future) by its hash.

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.

fn validation_code_hash(at: Block, ParaId, OccupiedCoreAssumption) -> Option<ValidationCodeHash>;