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Fix shift function.

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This commit is contained in:
Stephen Chung 2020-04-24 20:05:34 +08:00
parent fb8459d4de
commit 3cb3dc8e4f
1 changed files with 3 additions and 1 deletions
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4
src/packages/array_basic.rs
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@ -78,7 +78,7 @@ def_package!(crate:BasicArrayPackage:"Basic array utilities.", lib, {
lib, lib,
"shift", "shift",
|list: &mut Array| { |list: &mut Array| {
if !list.is_empty() { if list.is_empty() {
().into() ().into()
} else { } else {
list.remove(0) list.remove(0)
@ -106,6 +106,8 @@ def_package!(crate:BasicArrayPackage:"Basic array utilities.", lib, {
|list: &mut Array, len: INT| { |list: &mut Array, len: INT| {
if len >= 0 { if len >= 0 {
list.truncate(len as usize); list.truncate(len as usize);
} else {
list.clear();
} }
}, },
map, map,