kjuulh/rhai
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Avoid copying arguments in packages.

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This commit is contained in:
Stephen Chung
2020-05-06 23:52:47 +08:00
parent e966f5d49e
commit 34327f6e54
2 changed files with 41 additions and 19 deletions
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29
src/packages/utils.rs
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@@ -9,6 +9,7 @@ use crate::token::Position;
use crate::stdlib::{
any::TypeId,
boxed::Box,
mem,
string::{String, ToString},
};
@@ -170,9 +171,9 @@ pub fn reg_unary<T: Variant + Clone, R>(
check_num_args(fn_name, 1, args, pos)?;
let mut drain = args.iter_mut();
let x: &mut T = drain.next().unwrap().downcast_mut().unwrap();
let x = mem::take(*drain.next().unwrap()).cast::<T>();
let r = func(x.clone());
let r = func(x);
map_result(r, pos)
});
@@ -286,10 +287,10 @@ pub fn reg_binary<A: Variant + Clone, B: Variant + Clone, R>(
check_num_args(fn_name, 2, args, pos)?;
let mut drain = args.iter_mut();
let x: &mut A = drain.next().unwrap().downcast_mut().unwrap();
let y: &mut B = drain.next().unwrap().downcast_mut().unwrap();
let x = mem::take(*drain.next().unwrap()).cast::<A>();
let y = mem::take(*drain.next().unwrap()).cast::<B>();
let r = func(x.clone(), y.clone());
let r = func(x, y);
map_result(r, pos)
});
@@ -351,9 +352,9 @@ pub fn reg_binary_mut<A: Variant + Clone, B: Variant + Clone, R>(
let mut drain = args.iter_mut();
let x: &mut A = drain.next().unwrap().downcast_mut().unwrap();
let y: &mut B = drain.next().unwrap().downcast_mut().unwrap();
let y = mem::take(*drain.next().unwrap()).cast::<B>();
let r = func(x, y.clone());
let r = func(x, y);
map_result(r, pos)
});
@@ -390,11 +391,11 @@ pub fn reg_trinary<A: Variant + Clone, B: Variant + Clone, C: Variant + Clone, R
check_num_args(fn_name, 3, args, pos)?;
let mut drain = args.iter_mut();
let x: &mut A = drain.next().unwrap().downcast_mut().unwrap();
let y: &mut B = drain.next().unwrap().downcast_mut().unwrap();
let z: &mut C = drain.next().unwrap().downcast_mut().unwrap();
let x = mem::take(*drain.next().unwrap()).cast::<A>();
let y = mem::take(*drain.next().unwrap()).cast::<B>();
let z = mem::take(*drain.next().unwrap()).cast::<C>();
let r = func(x.clone(), y.clone(), z.clone());
let r = func(x, y, z);
map_result(r, pos)
});
@@ -432,10 +433,10 @@ pub fn reg_trinary_mut<A: Variant + Clone, B: Variant + Clone, C: Variant + Clon
let mut drain = args.iter_mut();
let x: &mut A = drain.next().unwrap().downcast_mut().unwrap();
let y: &mut B = drain.next().unwrap().downcast_mut().unwrap();
let z: &mut C = drain.next().unwrap().downcast_mut().unwrap();
let y = mem::take(*drain.next().unwrap()).cast::<B>();
let z = mem::take(*drain.next().unwrap()).cast::<C>();
let r = func(x, y.clone(), z.clone());
let r = func(x, y, z);
map_result(r, pos)
});