Struct MacroArgParser

struct MacroArgParser {
    buf: String,
    start_tok: Token,
    is_meta_var: bool,
    last_tok: Token,
    result: Vec<ParsedMacroArg>,
}

Parses macro arguments on macro def.

Fields

buf: String

Either a name of the next metavariable, a separator, or junk.

start_tok: Token

The first token of the current buffer.

is_meta_var: bool

true if we are parsing a metavariable or a repeat.

last_tok: Token

The last token parsed.

result: Vec<ParsedMacroArg>

Holds the parsed arguments.

Implementations

impl MacroArgParser

fn new() -> MacroArgParser

fn set_last_tok(&mut self, tok: &TokenTree)

fn add_separator(&mut self)

fn add_other(&mut self)

fn add_meta_variable(&mut self, iter: &mut RefTokenTreeCursor<'_>) -> Option<()>

fn add_delimited(&mut self, inner: Vec<ParsedMacroArg>, delim: Delimiter)

fn add_repeat( &mut self, inner: Vec<ParsedMacroArg>, delim: Delimiter, iter: &mut RefTokenTreeCursor<'_>, ) -> Option<()>

fn update_buffer(&mut self, t: &Token)

fn need_space_prefix(&self) -> bool

fn parse(self, tokens: TokenStream) -> Option<Vec<ParsedMacroArg>>

Returns a collection of parsed macro def’s arguments.

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: 104 bytes