Struct Impl

Source

pub struct Impl { /* private fields */ }

Expand description

Defines an impl block.

Implementations§

Source §

impl Impl

Source

pub fn new<T>(target: T) -> Self
where T: Into<Type>,

Returns a new impl definition.

§Arguments

target - The impl’s target.

§Examples

use rust_codegen::Impl;
 
let foo_impl = Impl::new("Foo");

Source

pub fn generic(&mut self, name: &str) -> &mut Self

Add a generic to the impl block.

This adds the generic for the block (impl<T>) and not the target type.

§Arguments

name - The name of the generic.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.generic("T");

Source

pub fn target_generic<T>(&mut self, ty: T) -> &mut Self
where T: Into<Type>,

Add a generic to the target type.

§Arguments

ty - The generic type to add to the target.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.target_generic("T");

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pub fn impl_trait<T>(&mut self, ty: T) -> &mut Self
where T: Into<Type>,

Set the trait that the impl block is implementing.

§Arguments

ty - The trait that the impl block is implementing.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.impl_trait("T");

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pub fn macro(&mut self, macro: &str) -> &mut Self

Add a macro to the impl block (e.g. "#[async_trait]")

§Arguments

macro - The macro to add.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.r#macro("async_trait");

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pub fn associate_type<T>(&mut self, name: &str, ty: T) -> &mut Self
where T: Into<Type>,

Set an associated type.

§Arguments

name - The name of the associated type.
ty - The type of the associated type.

§Examples

use rust_codegen::*;
 
let mut scope = Scope::new();
 
let trait_foo = scope.new_trait("Foo");
let mut impl_bar = Impl::new("Bar");
 
impl_bar.associate_type("A", "Foo");

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pub fn bound<T>(&mut self, name: &str, ty: T) -> &mut Self
where T: Into<Type>,

Add a where bound to the impl block.

§Arguments

name - The name of the bound.
ty - The type of the bound.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.bound("T", "Default");

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pub fn new_fn(&mut self, name: &str) -> &mut Function

Push a new function definition, returning a mutable reference to it.

§Arguments

name - The name of the function.

§Examples

use rust_codegen::Impl;
 
let mut foo_impl = Impl::new("Foo");
foo_impl.new_fn("bar_fn");

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pub fn push_fn(&mut self, item: Function) -> &mut Self

Push a function definition.

§Arguments

item - The function definition to push.

§Examples

use rust_codegen::{Function,Impl};
 
let mut foo_impl = Impl::new("Foo");
let bar_fn = Function::new("bar");
 
foo_impl.push_fn(bar_fn);

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

Formats the impl block using the given formatter.

§Arguments

fmt - The formatter to use.

§Examples

use rust_codegen::*;
 
let mut dest = String::new();
let mut fmt = Formatter::new(&mut dest);
 
let mut foo_impl = Impl::new("Foo");
foo_impl.fmt( &mut fmt);