Struct Erc20HostRef

pub struct Erc20HostRef { /* private fields */ }

Erc20 Host Ref.

Implementations

impl Erc20HostRef

pub fn init( &mut self, symbol: String, name: String, decimals: u8, initial_supply: Option<U256>, )

Initializes the contract with the given metadata and initial supply.

pub fn transfer(&mut self, recipient: &Address, amount: &U256)

Transfers tokens from the caller to the recipient.

pub fn transfer_from( &mut self, owner: &Address, recipient: &Address, amount: &U256, )

Transfers tokens from the owner to the recipient using the spender’s allowance.

pub fn approve(&mut self, spender: &Address, amount: &U256)

Approves the spender to spend the given amount of tokens on behalf of the caller.

pub fn name(&self) -> String

Returns the name of the token.

pub fn symbol(&self) -> String

Returns the symbol of the token.

pub fn decimals(&self) -> u8

Returns the number of decimals the token uses.

pub fn total_supply(&self) -> U256

Returns the total supply of the token.

pub fn balance_of(&self, address: &Address) -> U256

Returns the balance of the given address.

pub fn allowance(&self, owner: &Address, spender: &Address) -> U256

Returns the amount of tokens the owner has allowed the spender to spend.

pub fn mint(&mut self, address: &Address, amount: &U256)

Mints new tokens and assigns them to the given address.

pub fn burn(&mut self, address: &Address, amount: &U256)

Burns the given amount of tokens from the given address.

impl Erc20HostRef

pub fn try_init( &mut self, symbol: String, name: String, decimals: u8, initial_supply: Option<U256>, ) -> OdraResult<()>

Initializes the contract with the given metadata and initial supply. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_transfer( &mut self, recipient: &Address, amount: &U256, ) -> OdraResult<()>

Transfers tokens from the caller to the recipient. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_transfer_from( &mut self, owner: &Address, recipient: &Address, amount: &U256, ) -> OdraResult<()>

Transfers tokens from the owner to the recipient using the spender’s allowance. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_approve( &mut self, spender: &Address, amount: &U256, ) -> OdraResult<()>

Approves the spender to spend the given amount of tokens on behalf of the caller. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_name(&self) -> OdraResult<String>

Returns the name of the token. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_symbol(&self) -> OdraResult<String>

Returns the symbol of the token. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_decimals(&self) -> OdraResult<u8>

Returns the number of decimals the token uses. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_total_supply(&self) -> OdraResult<U256>

Returns the total supply of the token. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_balance_of(&self, address: &Address) -> OdraResult<U256>

Returns the balance of the given address. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_allowance( &self, owner: &Address, spender: &Address, ) -> OdraResult<U256>

Returns the amount of tokens the owner has allowed the spender to spend. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_mint(&mut self, address: &Address, amount: &U256) -> OdraResult<()>

Mints new tokens and assigns them to the given address. Does not fail in case of error, returns odra::OdraResult instead.

pub fn try_burn(&mut self, address: &Address, amount: &U256) -> OdraResult<()>

Burns the given amount of tokens from the given address. Does not fail in case of error, returns odra::OdraResult instead.

Trait Implementations

impl EntryPointsCallerProvider for Erc20HostRef

fn entry_points_caller(env: &HostEnv) -> EntryPointsCaller

Returns an EntryPointsCaller for the given host environment.

impl HasIdent for Erc20HostRef

fn ident() -> String

Returns the contract’s ident.

impl HostRef for Erc20HostRef

fn new(address: Address, env: HostEnv) -> Self

Creates a new host side reference to a contract.

fn with_tokens(&self, tokens: U512) -> Self

Creates a new host reference with attached tokens, based on the current instance.

fn address(&self) -> &Address

Returns the address of the contract.

fn env(&self) -> &HostEnv

Returns the host environment.

fn get_event<T>(&self, index: i32) -> Result<T, EventError>

where T: FromBytes + EventInstance,

Returns the n-th event emitted by the contract.

fn last_call(&self) -> ContractCallResult

Returns a detailed information about the last call of the contract.