Enum MacroArgKind

enum MacroArgKind {
    MetaVariable(Symbol, String),
    Repeat(Delimiter, Vec<ParsedMacroArg>, Option<Box<ParsedMacroArg>>, Token),
    Delimited(Delimiter, Vec<ParsedMacroArg>),
    Separator(String, String),
    Other(String, String),
}

Variants

MetaVariable(Symbol, String)

e.g., $x: expr.

Repeat(Delimiter, Vec<ParsedMacroArg>, Option<Box<ParsedMacroArg>>, Token)

e.g., $($foo: expr),*

Tuple Fields

0: Delimiter

(), [] or {}.

1: Vec<ParsedMacroArg>

Inner arguments inside delimiters.

2: Option<Box<ParsedMacroArg>>

Something after the closing delimiter and the repeat token, if available.

3: Token

The repeat token. This could be one of *, + or ?.

Delimited(Delimiter, Vec<ParsedMacroArg>)

e.g., [derive(Debug)]

Separator(String, String)

A possible separator. e.g., , or ;.

Other(String, String)

Other random stuff that does not fit to other kinds. e.g., == foo in ($x: expr == foo).

Implementations

impl MacroArgKind

fn starts_with_brace(&self) -> bool

fn starts_with_dollar(&self) -> bool

fn ends_with_space(&self) -> bool

fn has_meta_var(&self) -> bool

fn rewrite( &self, context: &RewriteContext<'_>, shape: Shape, use_multiple_lines: bool, ) -> Result<String, RewriteError>

Trait Implementations

impl Clone for MacroArgKind

fn clone(&self) -> MacroArgKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MacroArgKind

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

Formats the value using the given formatter.

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: 64 bytes

Size for each variant:

• MetaVariable: 40 bytes
• Repeat: 64 bytes
• Delimited: 40 bytes
• Separator: 56 bytes
• Other: 56 bytes