Struct OptionDecl 

pub struct OptionDecl {
    pub type_name: String,
    pub default: Option<NixValue>,
    pub description: String,
    pub submodule: Option<Box<Module>>,
}

One option declaration — what cppnix’s mkOption returns.

Fields

type_name: String

Name of the OptionTypeSpec in the canonical registry ("bool", "int", "str", "path", "listOf", …).

default: Option<NixValue>

Default value when no module defines this option.

description: String

Human-readable description.

submodule: Option<Box<Module>>

For type_name == "submodule": the submodule’s nested option declarations + own definitions. The M2.1 SubmoduleMerge implementation recurses into eval_modules against this spec.

Trait Implementations

impl Clone for OptionDecl

fn clone(&self) -> OptionDecl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionDecl

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

Formats the value using the given formatter.

impl Default for OptionDecl

fn default() -> Self

Returns the “default value” for a type.