Struct MacroMatcher 

pub struct MacroMatcher {
    pub pattern: Vec<MacroVarExt>,
}

A macro pattern matcher that checks if a token sequence matches a macro pattern.

Fields

pattern: Vec<MacroVarExt>

The pattern (list of literals and holes)

Implementations

impl MacroMatcher

pub fn from_str(s: &str) -> Self

Create a new matcher from a space-separated pattern string.

pub fn hole_count(&self) -> usize

Returns the number of holes.

pub fn literal_count(&self) -> usize

Returns the number of literal tokens.