Struct derive_builder_core::Initializer

pub struct Initializer<'a> {
    pub field_ident: &'a Ident,
    pub setter_enabled: bool,
    pub builder_pattern: BuilderPattern,
    pub default_value: Option<Block>,
    pub use_default_struct: bool,
    pub bindings: Bindings,
}

Initializer for the target struct fields, implementing quote::ToTokens.

Lives in the body of BuildMethod.

Examples

Will expand to something like the following (depending on settings):

foo: match self.foo {
    Some(value) => value,
    None => { 42 },
},

Fields

field_ident: &'a Ident

Name of the target field.

setter_enabled: bool

Whether the builder implements a setter for this field.

builder_pattern: BuilderPattern

How the build method takes and returns self (e.g. mutably).

default_value: Option<Block>

Default value for the target field.

This takes precedence over a default struct identifier.

use_default_struct: bool

Whether the build_method defines a default struct.

bindings: Bindings

Bindings to libstd or libcore.

Trait Implementations

impl<'a> Clone for Initializer<'a>

fn clone(&self) -> Initializer<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Initializer<'a>

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

Formats the value using the given formatter.

impl<'a> ToTokens for Initializer<'a>

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.