Struct ChainExtension

pub struct ChainExtension { /* private fields */ }

An ink! chain extension.

Implementations

impl ChainExtension

pub fn attrs(&self) -> Vec<Attribute>

Returns the Rust attributes of the ink! chain extension.

pub fn span(&self) -> Span

Returns the span of the ink! chain extension.

pub fn ident(&self) -> &Ident

Returns the identifier of the ink! chain extension.

pub fn iter_methods(&self) -> SliceIter<'_, ChainExtensionMethod>

Returns a slice over all the chain extension methods.

pub fn error_code(&self) -> &Type

Returns the type of the error code of the chain extension.

impl ChainExtension

pub fn try_from(item_trait: ItemTrait, config: Config) -> Result<Self, Error>

Creates a new ink! chain extension from the given configuration and trait item.

Errors

Returns an error if some of the chain extension rules are violated.

impl ChainExtension

pub fn new(attr: TokenStream2, input: TokenStream2) -> Result<Self>

Returns Ok if the trait matches all requirements for an ink! chain extension.

Trait Implementations

impl Debug for ChainExtension

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

Formats the value using the given formatter.

impl PartialEq for ChainExtension

fn eq(&self, other: &ChainExtension) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ChainExtension

impl StructuralPartialEq for ChainExtension