[−][src]Struct evm::AccountState
A struct that manages the current account state for one EVM.
Methods
impl<'a, A: AccountPatch> AccountState<'a, A>
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pub fn new(account_patch: &'a A) -> Self
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Create new AccountState configured with AccountPatch
pub fn derive_from<'b>(account_patch: &'a A, prev: &AccountState<'b, A>) -> Self
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Clone with new AccountPatch
impl<'a, A: AccountPatch> AccountState<'a, A>
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pub fn used_addresses(&self) -> Set<Address>
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Returns all fetched or modified addresses.
pub fn accounts(&self) -> Values<Address, AccountChange>
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Returns all accounts right now in this account state.
pub fn require(&self, address: Address) -> Result<(), RequireError>
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Returns Ok(()) if a full account is in this account
state. Otherwise raise a RequireError
.
pub fn require_code(&self, address: Address) -> Result<(), RequireError>
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Returns Ok(()) if either a full account or a partial code
account is in this account state. Otherwise raise a
RequireError
.
pub fn require_storage(
&self,
address: Address,
index: U256
) -> Result<(), RequireError>
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&self,
address: Address,
index: U256
) -> Result<(), RequireError>
Returns Ok(()) if the storage exists in the VM. Otherwise
raise a RequireError
.
pub fn commit(
&mut self,
commitment: AccountCommitment
) -> Result<(), CommitError>
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&mut self,
commitment: AccountCommitment
) -> Result<(), CommitError>
Commit an account commitment into this account state.
pub fn exists(&self, address: Address) -> Result<bool, RequireError>
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Test whether an account at given address is considered existing.
pub fn code(&self, address: Address) -> Result<Rc<Vec<u8>>, RequireError>
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Find code by its address in this account state. If the search
failed, returns a RequireError
.
pub fn code_opt_nonexist(
&self,
address: Address
) -> Result<Option<Rc<Vec<u8>>>, RequireError>
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&self,
address: Address
) -> Result<Option<Rc<Vec<u8>>>, RequireError>
Find code of account that may not exist. If search
failed, returns a RequireError
pub fn nonce(&self, address: Address) -> Result<U256, RequireError>
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Find nonce by its address in this account state. If the search
failed, returns a RequireError
.
pub fn balance(&self, address: Address) -> Result<U256, RequireError>
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Find balance by its address in this account state. If the
search failed, returns a RequireError
.
pub fn storage_read(
&self,
address: Address,
index: U256
) -> Result<M256, RequireError>
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&self,
address: Address,
index: U256
) -> Result<M256, RequireError>
Read a value from an account storage.
pub fn storage_read_orig(
&self,
address: Address,
index: U256
) -> Result<M256, RequireError>
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&self,
address: Address,
index: U256
) -> Result<M256, RequireError>
Read an original (pre-execution) value from an account storage
pub fn storage_write(
&mut self,
address: Address,
index: U256,
value: M256
) -> Result<(), RequireError>
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&mut self,
address: Address,
index: U256,
value: M256
) -> Result<(), RequireError>
Write a value from an account storage. The account will be created if it is nonexist.
pub fn create(
&mut self,
address: Address,
topup: U256
) -> Result<(), RequireError>
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&mut self,
address: Address,
topup: U256
) -> Result<(), RequireError>
Create a new account (that should not yet have existed before).
pub fn code_deposit(&mut self, address: Address, new_code: Rc<Vec<u8>>)
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Deposit code in to a created account. Only usable in a newly created account.
pub fn increase_balance(&mut self, address: Address, topup: U256)
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Increase the balance of an account. The account will be created if it is nonexist in the beginning.
pub fn decrease_balance(&mut self, address: Address, withdraw: U256)
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Decrease the balance of an account. The account will be created if it is nonexist in the beginning.
pub fn set_nonce(
&mut self,
address: Address,
new_nonce: U256
) -> Result<(), RequireError>
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&mut self,
address: Address,
new_nonce: U256
) -> Result<(), RequireError>
Set nonce of an account. If the account is not already
commited, returns a RequireError
. The account will be
created if it is nonexist in the beginning.
pub fn remove(&mut self, address: Address) -> Result<(), RequireError>
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Delete an account from this account state. The account is set to null.
Trait Implementations
impl<'a, A: AccountPatch> Clone for AccountState<'a, A>
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fn clone(&self) -> Self
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl<'a, A: Debug + AccountPatch> Debug for AccountState<'a, A>
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Auto Trait Implementations
impl<'a, A> !Send for AccountState<'a, A>
impl<'a, A> !Sync for AccountState<'a, A>
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Same<T> for T
type Output = T
Should always be Self