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//! Data loading.
#[path = "cbor.rs"]
mod cbor_;
#[path = "csv.rs"]
mod csv_;
#[path = "json.rs"]
mod json_;
#[path = "read.rs"]
mod read_;
#[path = "toml.rs"]
mod toml_;
#[path = "xml.rs"]
mod xml_;
#[path = "yaml.rs"]
mod yaml_;
pub use self::cbor_::*;
pub use self::csv_::*;
pub use self::json_::*;
pub use self::read_::*;
pub use self::toml_::*;
pub use self::xml_::*;
pub use self::yaml_::*;
use crate::foundations::{cast, category, Bytes, Category, Scope, Str};
/// Data loading from external files.
///
/// These functions help you with loading and embedding data, for example from
/// the results of an experiment.
#[category]
pub static DATA_LOADING: Category;
/// Hook up all `data-loading` definitions.
pub(super) fn define(global: &mut Scope) {
global.category(DATA_LOADING);
global.define_func::<read>();
global.define_func::<csv>();
global.define_func::<json>();
global.define_func::<toml>();
global.define_func::<yaml>();
global.define_func::<cbor>();
global.define_func::<xml>();
}
/// A value that can be read from a file.
#[derive(Debug, Clone, PartialEq, Hash)]
pub enum Readable {
/// A decoded string.
Str(Str),
/// Raw bytes.
Bytes(Bytes),
}
impl Readable {
pub fn as_slice(&self) -> &[u8] {
match self {
Readable::Bytes(v) => v,
Readable::Str(v) => v.as_bytes(),
}
}
pub fn as_str(&self) -> Option<&str> {
match self {
Readable::Str(v) => Some(v.as_str()),
Readable::Bytes(v) => std::str::from_utf8(v).ok(),
}
}
}
cast! {
Readable,
self => match self {
Self::Str(v) => v.into_value(),
Self::Bytes(v) => v.into_value(),
},
v: Str => Self::Str(v),
v: Bytes => Self::Bytes(v),
}
impl From<Readable> for Bytes {
fn from(value: Readable) -> Self {
match value {
Readable::Bytes(v) => v,
Readable::Str(v) => v.as_bytes().into(),
}
}
}
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