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36 lines
1.4 KiB
Rust
36 lines
1.4 KiB
Rust
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#![cfg_attr(not(feature = "std"), no_std)]
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use ink_lang as ink;
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use ink_env::{Environment, DefaultEnvironment, AccountId};
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#[ink::chain_extension]
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pub trait SeraiExtension {
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type ErrorCode = ();
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/// Returns the amount of active validators on the current chain.
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#[ink(extension = 0, handle_status = false, returns_result = false)]
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fn active_validators_len() -> u16;
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/// Returns the ID for the current validator set for the current chain.
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// TODO: Decide if this should be an increasing unsigned integer instead of a hash.
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#[ink(extension = 1, handle_status = false, returns_result = false)]
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fn validator_set_id() -> [u8; 32];
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/// Returns if the specified account is an active validator for the current chain.
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#[ink(extension = 2, handle_status = false, returns_result = false)]
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fn is_active_validator(account: &AccountId) -> bool;
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}
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pub struct SeraiEnvironment;
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impl Environment for SeraiEnvironment {
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const MAX_EVENT_TOPICS: usize = <DefaultEnvironment as Environment>::MAX_EVENT_TOPICS;
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type AccountId = <DefaultEnvironment as Environment>::AccountId;
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type Balance = <DefaultEnvironment as Environment>::Balance;
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type Hash = <DefaultEnvironment as Environment>::Hash;
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type BlockNumber = <DefaultEnvironment as Environment>::BlockNumber;
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type Timestamp = <DefaultEnvironment as Environment>::Timestamp;
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type ChainExtension = SeraiExtension;
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}
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