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use std::borrow::Cow;
use crate::core::{Globals, Intern};
use crate::error::Error;
use crate::sys;
use crate::value::Value;
use crate::Artichoke;
impl Globals for Artichoke {
type Value = Value;
type Error = Error;
fn set_global_variable<T>(&mut self, name: T, value: &Self::Value) -> Result<(), Self::Error>
where
T: Into<Cow<'static, [u8]>>,
{
let sym = self.intern_bytes(name.into())?;
unsafe {
self.with_ffi_boundary(|mrb| sys::mrb_gv_set(mrb, sym, value.inner()))?;
}
Ok(())
}
fn unset_global_variable<T>(&mut self, name: T) -> Result<(), Self::Error>
where
T: Into<Cow<'static, [u8]>>,
{
let sym = self.intern_bytes(name.into())?;
let nil = Value::nil();
unsafe {
self.with_ffi_boundary(|mrb| sys::mrb_gv_set(mrb, sym, nil.inner()))?;
}
Ok(())
}
fn get_global_variable<T>(&mut self, name: T) -> Result<Option<Self::Value>, Self::Error>
where
T: Into<Cow<'static, [u8]>>,
{
let sym = self.intern_bytes(name.into())?;
let value = unsafe { self.with_ffi_boundary(|mrb| sys::mrb_gv_get(mrb, sym))? };
Ok(Some(Value::from(value)))
}
}