Enum rustc_builtin_macros::format_foreign::printf::Substitution

pub enum Substitution<'a> {
    Format(Format<'a>),
    Escape,
}

Represents a single printf-style substitution.

Variants

Format(Format<'a>)

A formatted output substitution with its internal byte offset.

Escape

A literal %% escape.

Implementations

impl<'a> Substitution<'a>

pub fn as_str(&self) -> &str

pub fn position(&self) -> Option<InnerSpan>

pub fn set_position(&mut self, start: usize, end: usize)

pub fn translate(&self) -> Option<String>

Translate this substitution into an equivalent Rust formatting directive.

This ignores cases where the substitution does not have an exact equivalent, or where the substitution would be unnecessary.

Trait Implementations

impl<'a> Clone for Substitution<'a>

pub fn clone(&self) -> Substitution<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Substitution<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq<Substitution<'a>> for Substitution<'a>

pub fn eq(&self, other: &Substitution<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Substitution<'a>) -> bool

This method tests for !=.

impl<'a> StructuralPartialEq for Substitution<'a>