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Use ::default over ::empty for RocStr and RocList

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This commit is contained in:
Richard Feldman 2021-08-03 07:22:09 -04:00
parent 91f1589f62
commit 1c09450103
2 changed files with 21 additions and 17 deletions
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2
compiler/test_gen/src/gen_list.rs
View file

@ -1955,7 +1955,7 @@ fn lists_with_incompatible_type_param_in_if() {
""
"#
),
RocStr::empty(),
RocStr::default(),
RocStr
);
}

36
roc_std/src/lib.rs
View file

@ -31,7 +31,7 @@ pub enum RocOrder {
//#[macro_export]
//macro_rules! roclist {
// () => (
// $crate::RocList::empty()
// $crate::RocList::default()
// );
// ($($x:expr),+ $(,)?) => (
// $crate::RocList::from_slice(&[$($x),+])
@ -60,13 +60,6 @@ impl<T> RocList<T> {
self.length == 0
}
pub fn empty() -> Self {
Self {
length: 0,
elements: core::ptr::null_mut(),
}
}
pub fn get(&self, index: usize) -> Option<&T> {
if index < self.len() {
Some(unsafe {
@ -287,6 +280,15 @@ impl<T> RocList<T> {
}
}
impl<T> Default for RocList<T> {
fn default() -> Self {
Self {
length: 0,
elements: core::ptr::null_mut(),
}
}
}
impl<T: fmt::Debug> fmt::Debug for RocList<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
// RocList { storage: Refcounted(3), elements: [ 1,2,3,4] }
@ -367,13 +369,6 @@ impl RocStr {
(self.length as isize) < 0
}
pub fn empty() -> Self {
RocStr {
length: 0,
elements: core::ptr::null_mut(),
}
}
pub fn get(&self, index: usize) -> Option<&u8> {
if index < self.len() {
Some(unsafe {
@ -460,7 +455,7 @@ impl RocStr {
capacity
);
if capacity < core::mem::size_of::<Self>() {
let mut rocstr = Self::empty();
let mut rocstr = Self::default();
let target_ptr = rocstr.get_small_str_ptr_mut();
let source_ptr = slice.as_ptr() as *const u8;
for index in 0..slice.len() {
@ -548,6 +543,15 @@ impl RocStr {
}
}
impl Default for RocStr {
fn default() -> Self {
Self {
length: 0,
elements: core::ptr::null_mut(),
}
}
}
impl From<&str> for RocStr {
fn from(str: &str) -> Self {
Self::from_slice(str.as_bytes())