Struct ethers_contract_abigen::Abigen

pub struct Abigen { /* private fields */ }

Builder struct for generating type-safe bindings from a contract’s ABI

Note: Your contract’s ABI must contain the stateMutability field. This is still not supported by Vyper, so you must adjust your ABIs and replace constant functions with view or pure.

To generate bindings for multiple contracts at once see also crate::MultiAbigen.

Example

Running the code below will generate a file called token.rs containing the bindings inside, which exports an ERC20Token struct, along with all its events. Put into a build.rs file this will generate the bindings during cargo build.

Abigen::new("ERC20Token", "./abi.json")?.generate()?.write_to_file("token.rs")?;

Implementations

impl Abigen

pub fn new<S: AsRef<str>>(contract_name: &str, abi_source: S) -> Result<Self>

Creates a new builder with the given ABI JSON source.

pub fn from_file(path: impl AsRef<Path>) -> Result<Self>

Attempts to load a new builder from an ABI JSON file at the specific path.

pub fn add_event_alias<S1, S2>(self, signature: S1, alias: S2) -> Selfwhere
    S1: Into<String>,
    S2: Into<String>,

Manually adds a solidity event alias to specify what the event struct and function name will be in Rust.

pub fn add_method_alias<S1, S2>(self, signature: S1, alias: S2) -> Selfwhere
    S1: Into<String>,
    S2: Into<String>,

Manually adds a solidity method alias to specify what the method name will be in Rust. For solidity methods without an alias, the snake cased method name will be used.

pub fn add_error_alias<S1, S2>(self, signature: S1, alias: S2) -> Selfwhere
    S1: Into<String>,
    S2: Into<String>,

Manually adds a solidity error alias to specify what the error struct will be in Rust.

pub fn rustfmt(self, rustfmt: bool) -> Self

Specify whether or not to format the code using a locally installed copy of rustfmt.

Note that in case rustfmt does not exist or produces an error, the unformatted code will be used.

pub fn add_event_derive<S>(self, derive: S) -> Selfwhere
    S: Into<String>,

Add a custom derive to the derives for event structs and enums.

This makes it possible to for example derive serde::Serialize and serde::Deserialize for events.

pub fn generate(self) -> Result<ContractBindings>

Generates the contract bindings.

pub fn expand(self) -> Result<(ExpandedContract, Context)>

Expands the Abigen and returns the ExpandedContract that holds all tokens and the Context that holds the state used during expansion.

Trait Implementations

impl Clone for Abigen

fn clone(&self) -> Abigen

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Abigen

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromIterator<Abigen> for MultiAbigen

fn from_iter<I: IntoIterator<Item = Abigen>>(iter: I) -> Self

Creates a value from an iterator.