Method arm

cranelift/srcgen/src/lib.rs:348–362

Add an arm that reads fields to the Match statement.

(&mut self, name: T, fields: Vec<S>, body: T)

    /// Add an arm that reads fields to the Match statement.
    pub fn arm<T: Into<String>, S: Into<String>>(&mut self, name: T, fields: Vec<S>, body: T) {
        let name = name.into();
        assert!(
            name != "_",
            "catch all clause can't extract fields, use arm_no_fields instead."
        );

        let body = body.into();
        let fields = fields.into_iter().map(|x| x.into()).collect();
        let match_arm = self
            .arms
            .entry((fields, body))
            .or_insert_with(BTreeSet::new);
        match_arm.insert(name);
    }

    /// Adds an arm that doesn't read anythings from the fields to the Match statement.
    pub fn arm_no_fields(&mut self, name: impl Into<String>, body: impl Into<String>) {