Struct derive_builder_core::DeprecationNotes

pub struct DeprecationNotes(_);

Deprecation notes we want to emit to the user, implementing quote::ToTokens.

Can be expanded at every place that accepts statements and item definitions (e.g. function bodys).

Examples

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

        {
            #[deprecated(note = "Some Warning")]
            fn derive_builder_core_deprecation_note() { }
            derive_builder_core_deprecation_note();
        }

This will emit a deprecation warning in the downstream crate. Cool stuff. ^^

Proof of concept:

• https://play.rust-lang.org/?gist=8394141c07d1f6d75d314818389eb4d8

Implementations

impl DeprecationNotes

pub fn push(&mut self, note: String)

Appends a note to the collection.

pub fn extend(&mut self, other: &Self)

Extend this collection with all values from another collection.

pub const fn as_item(&self) -> DeprecationNotesAsItem<'_>

Create a view of these deprecation notes that can annotate a struct.

Trait Implementations

impl Clone for DeprecationNotes

fn clone(&self) -> DeprecationNotes

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeprecationNotes

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

Formats the value using the given formatter.

impl Default for DeprecationNotes

fn default() -> DeprecationNotes

Returns the “default value” for a type.

impl ToTokens for DeprecationNotes

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

Write self to the given TokenStream.

pub fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

pub fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.