Struct rustc_builtin_macros::format::ast::FormatPlaceholder

pub struct FormatPlaceholder {
    pub argument: FormatArgPosition,
    pub span: Option<Span>,
    pub format_trait: FormatTrait,
    pub format_options: FormatOptions,
}

Fields

argument: FormatArgPosition

Index into FormatArgs::arguments.

span: Option<Span>

The span inside the format string for the full {…} placeholder.

format_trait: FormatTrait

{}, {:?}, or {:x}, etc.

format_options: FormatOptions

{} or {:.5} or {:-^20}, etc.

Trait Implementations

impl Clone for FormatPlaceholder

fn clone(&self) -> FormatPlaceholder

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FormatPlaceholder

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

Formats the value using the given formatter.

impl PartialEq<FormatPlaceholder> for FormatPlaceholder

fn eq(&self, other: &FormatPlaceholder) -> bool

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FormatPlaceholder

impl StructuralEq for FormatPlaceholder

impl StructuralPartialEq for FormatPlaceholder

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 128 bytes