Enum CallArg 

pub enum CallArg {
    Parser(ParserAst),
    String(String),
    Int(i64),
    Flag(String),
    Named {
        name: String,
        parser: ParserAst,
    },
    Keyword {
        name: String,
        value: String,
    },
    RepeatedTail {
        name: String,
        parser: ParserAst,
        count: Option<RepeatCount>,
    },
}

One argument of a constructor call, as written (§7.5).

Variants

Parser(ParserAst)

A positional parser expression.

String(String)

A positional string literal (sep’s separator, one_of’s set), already decoded by praxis_syntax::literal::unquote_text.

Int(i64)

A positional whole-number literal — the N of repeated(P, N), already decoded by praxis_syntax::numeric::parse_int_literal. Still an i64 here: whether a number is a usable count is RepeatCount’s question, and it is asked where the span is.

Flag(String)

A bare keyword flag: the ragged of grid(P, ragged, fill: 0).

Named

A named argument name: parser_expr.

Fields

name: String

parser: ParserAst

Keyword

A named argument whose value is a keyword rather than a parser: skip: whitespace, fill: 0.

Fields

name: String

value: String

RepeatedTail

A name: repeated(...) argument of a named sections. count is Some for the bounded repeated(P, N) and None for the greedy repeated(P) — the distinction the position rule below is entirely about.

Fields

name: String

parser: ParserAst

count: Option<RepeatCount>

Implementations

impl CallArg

pub fn kind(&self) -> ArgKind

This argument’s shape, with the payload dropped — what check_call reads.

Trait Implementations

impl Clone for CallArg

fn clone(&self) -> CallArg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CallArg

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

Formats the value using the given formatter.