Struct miniscript::expression::Tree

pub struct Tree<'a> {
    pub name: &'a str,
    pub args: Vec<Tree<'a>>,
}

A token of the form x(...) or x

Fields

name: &'a str

The name x

args: Vec<Tree<'a>>

The comma-separated contents of the (...), if any

Implementations

impl<'a> Tree<'a>

pub fn from_slice(sl: &'a str) -> Result<(Tree<'a>, &'a str), Error>

Parse an expression with round brackets

pub fn from_str(s: &'a str) -> Result<Tree<'a>, Error>

Parses a tree from a string

pub fn to_null_threshold<const MAX: usize>( &self ) -> Result<Threshold<(), MAX>, ParseThresholdError>

Parses an expression tree as a threshold (a term with at least one child, the first of which is a positive integer k).

This sanity-checks that the threshold is well-formed (begins with a valid threshold value, etc.) but does not parse the children of the threshold. Instead it returns a threshold holding the empty type (), which is constructed without any allocations, and expects the caller to convert this to the “real” threshold type by calling Threshold::translate.

(An alternate API which does the conversion inline turned out to be too messy; it needs to take a closure, have multiple generic parameters, and be able to return multiple error types.)

Trait Implementations

impl<'a> Debug for Tree<'a>

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

Formats the value using the given formatter.