INNER CODE UNIT · Rust

optional

killercup/cargo-edit · src/dependency.rs:149

    pub fn optional(&self) -> Option<bool> {
        self.optional
    }
}

impl Dependency {
    /// Create a dependency from a TOML table entry
    pub fn from_toml(crate_root: &Path, key: &str, item: &toml_edit::Item) -> CargoResult<Self> {
        if let Some(version) = item.as_str() {
            let dep = Self::new(key).set_source(RegistrySource::new(version));
            Ok(dep)
        } else if let Some(table) = item.as_table_like() {
            let (name, rename) = if let Some(value) = table.get("package") {
                (
                    value
                        .as_str()
                        .ok_or_else(|| invalid_type(key, "package", value.type_name(), "string"))?
                        .to_owned(),

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