Struct ItemFunction

pub struct ItemFunction {
    pub attrs: Vec<Attribute>,
    pub kind: FunctionKind,
    pub name: Option<SolIdent>,
    pub paren_token: Option<Paren>,
    pub parameters: ParameterList,
    pub attributes: FunctionAttributes,
    pub returns: Option<Returns>,
    pub body: FunctionBody,
}

A function, constructor, fallback, receive, or modifier definition: function helloWorld() external pure returns(string memory);.

Solidity reference: https://docs.soliditylang.org/en/latest/grammar.html#a4.SolidityParser.functionDefinition

Fields

attrs: Vec<Attribute>

The syn attributes of the function.

kind: FunctionKind

name: Option<SolIdent>

paren_token: Option<Paren>

Parens are optional for modifiers: https://docs.soliditylang.org/en/latest/grammar.html#a4.SolidityParser.modifierDefinition

parameters: ParameterList

attributes: FunctionAttributes

The Solidity attributes of the function.

returns: Option<Returns>

The optional return types of the function.

body: FunctionBody

Implementations

impl ItemFunction

pub fn new(kind: FunctionKind, name: Option<SolIdent>) -> Self

Create a new function of the given kind.

pub fn new_getter(name: SolIdent, ty: Type) -> Self

Create a new function with the given name and arguments.

Note that:

• the type is not validated
• structs/array of structs in return position are not expanded
• the body is not set

The attributes are set to public view.

See the Solidity documentation for more details on how getters are generated.

pub fn from_variable_definition(var: VariableDefinition) -> Self

Creates a new function from a variable definition.

The function will have the same name and the variable type’s will be the return type. The variable attributes are ignored, and instead will always generate public returns.

See new_getter for more details.

pub fn name(&self) -> &SolIdent

Returns the name of the function.

Panics

Panics if the function has no name. This is the case when kind is not Function.

pub fn is_void(&self) -> bool

Returns true if the function returns nothing.

pub fn has_implementation(&self) -> bool

Returns true if the function has a body.

pub fn call_type(&self) -> Type

Returns the function’s arguments tuple type.

pub fn return_type(&self) -> Option<Type>

Returns the function’s return tuple type.

pub fn body(&self) -> Option<&[Stmt]>

Returns a reference to the function’s body, if any.

pub fn body_mut(&mut self) -> Option<&mut Vec<Stmt>>

Returns a mutable reference to the function’s body, if any.

pub fn into_body(self) -> Result<Vec<Stmt>, Self>

Trait Implementations

impl Clone for ItemFunction

fn clone(&self) -> ItemFunction

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ItemFunction

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

Formats the value using the given formatter.

impl Display for ItemFunction

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

Formats the value using the given formatter.

impl Parse for ItemFunction

fn parse(input: ParseStream<'_>) -> Result<Self>

impl Spanned for ItemFunction

fn span(&self) -> Span

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty.

fn set_span(&mut self, span: Span)

Sets the span of this syntax tree node if it is not empty.

fn with_span(self, span: Span) -> Self

where Self: Sized,

Sets the span of this owned syntax tree node if it is not empty.