forked from cerc-io/laconicd-deprecated
82 lines
4.1 KiB
Markdown
82 lines
4.1 KiB
Markdown
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# Parameters
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The evm module contains the following parameters:
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## Params
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| Key | Type | Default Value |
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| -------------- | ----------- | --------------- |
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| `EVMDenom` | string | `"aphoton"` |
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| `EnableCreate` | bool | `true` |
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| `EnableCall` | bool | `true` |
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| `ExtraEIPs` | []int | TBD |
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| `ChainConfig` | ChainConfig | See ChainConfig |
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## EVM denom
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The evm denomination parameter defines the token denomination used on the EVM state transitions and gas consumption for EVM messages.
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For example, on Ethereum, the `evm_denom` would be `ETH`. In the case of Ethermint, the default denomination is the **[atto photon](notion://www.notion.so/docs/basics/photon.md)** (used on the Evmos testnets). In terms of precision, the `PHOTON` and `ETH` share the same value, *i.e* `1 PHOTON = 10^18 atto photon` and `1 ETH = 10^18 wei`.
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::: tip
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Note: SDK applications that want to import the EVM module as a dependency will need to set their own `evm_denom` (i.e not `"aphoton"`).
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:::
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## Enable Create
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The enable create parameter toggles state transitions that use the `vm.Create` function. When the parameter is disabled, it will prevent all contract creation functionality.
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## Enable Transfer
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The enable transfer toggles state transitions that use the `vm.Call` function. When the parameter is disabled, it will prevent transfers between accounts and executing a smart contract call.
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## Extra EIPs
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The extra EIPs parameter defines the set of activateable Ethereum Improvement Proposals (**[EIPs](https://ethereum.org/en/eips/)**)
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on the Ethereum VM `Config` that apply custom jump tables.
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::: tip
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NOTE: some of these EIPs are already enabled by the chain configuration, depending on the hard fork number.
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:::
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The supported activateable EIPS are:
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- **[EIP 1344](https://eips.ethereum.org/EIPS/eip-1344)**
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- **[EIP 1884](https://eips.ethereum.org/EIPS/eip-1884)**
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- **[EIP 2200](https://eips.ethereum.org/EIPS/eip-2200)**
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- **[EIP 2315](https://eips.ethereum.org/EIPS/eip-2315)**
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- **[EIP 2929](https://eips.ethereum.org/EIPS/eip-2929)**
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- **[EIP 3198](https://eips.ethereum.org/EIPS/eip-3198)**
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- **[EIP 3529](https://eips.ethereum.org/EIPS/eip-3529)**
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## Chain Config
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The `ChainConfig` is a protobuf wrapper type that contains the same fields as the go-ethereum `ChainConfig` parameters, but using `*sdk.Int` types instead of `*big.Int`.
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By default, all block configuration fields but `ConstantinopleBlock`, are enabled at genesis (height 0).
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### ChainConfig Defaults
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| Name | Default Value |
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| ------------------- | -------------------------------------------------------------------- |
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| HomesteadBlock | 0 |
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| DAOForkBlock | 0 |
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| DAOForkSupport | `true` |
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| EIP150Block | 0 |
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| EIP150Hash | `0x0000000000000000000000000000000000000000000000000000000000000000` |
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| EIP155Block | 0 |
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| EIP158Block | 0 |
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| ByzantiumBlock | 0 |
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| ConstantinopleBlock | 0 |
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| PetersburgBlock | 0 |
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| IstanbulBlock | 0 |
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| MuirGlacierBlock | 0 |
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| BerlinBlock | 0 |
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| CatalystBlock | `nil` |
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| LondonBlock | 0 |
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