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pallet-contracts: State rent fixes (#6147)

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* Don't store the storage size offset in the contract itself.

* Clean the AccountDb code a bit

* Use `storage_size: 0` when creating AliveContractInfo

* Count empty storage items.

* Update frame/contracts/src/account_db.rs

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

* Use more clear wording.

Co-authored-by: Alexander Theißen <athei@users.noreply.github.com>

* Change the order of decrement and increment for storage size

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>
Co-authored-by: Alexander Theißen <athei@users.noreply.github.com>
This commit is contained in:
Sergei Pepyakin
2020-05-28 20:07:25 +02:00
committed by GitHub
parent c672cce4bd
commit c8fe8b5378
5 changed files with 209 additions and 47 deletions
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substrate/frame/contracts/fixtures/set_empty_storage.wat
+15
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@@ -0,0 +1,15 @@
;; This module stores a KV pair into the storage
(module
(import "env" "ext_set_storage" (func $ext_set_storage (param i32 i32 i32)))
(import "env" "memory" (memory 16 16))
(func (export "call")
)
(func (export "deploy")
(call $ext_set_storage
(i32.const 0) ;; Pointer to storage key
(i32.const 0) ;; Pointer to value
(i32.load (i32.const 0)) ;; Size of value
)
)
)