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#![feature(try_from)]
#![feature(drop_types_in_const)]
extern crate toml;
mod value;
mod source;
mod config;
use std::error::Error;
use std::convert::TryFrom;
use std::sync::{Once, ONCE_INIT};
pub use source::Source;
pub use source::File;
use value::Value;
pub use config::Config;
// Global configuration
static mut CONFIG: Option<Config> = None;
static CONFIG_INIT: Once = ONCE_INIT;
// Get the global configuration instance
fn global() -> Option<&'static mut Config> {
unsafe {
CONFIG_INIT.call_once(|| {
CONFIG = Some(Default::default());
});
// TODO(@rust): One-line this if possible
if let Some(ref mut c) = CONFIG {
return Some(c);
}
None
}
}
pub fn merge<T>(source: T) -> Result<(), Box<Error>>
where T: Source
{
global().unwrap().merge(source)
}
pub fn set_env_prefix(prefix: &str) {
global().unwrap().set_env_prefix(prefix)
}
pub fn set_default<T>(key: &str, value: T)
where T: Into<Value>
{
global().unwrap().set_default(key, value)
}
pub fn set<T>(key: &str, value: T)
where T: Into<Value>
{
global().unwrap().set(key, value)
}
pub fn get<'a, T>(key: &str) -> Option<T>
where T: TryFrom<&'a mut Value>,
T: Default
{
global().unwrap().get(key)
}
pub fn get_str<'a>(key: &str) -> Option<&'a str> {
global().unwrap().get_str(key)
}
pub fn get_int(key: &str) -> Option<i64> {
global().unwrap().get_int(key)
}
pub fn get_float(key: &str) -> Option<f64> {
global().unwrap().get_float(key)
}
pub fn get_bool(key: &str) -> Option<bool> {
global().unwrap().get_bool(key)
}
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