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builtin: save a call to array.ensure_cap in array.insert, array.push, array.push_many in most cases

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This commit is contained in:
Delyan Angelov 2022-02-02 10:48:15 +02:00
parent c0c07db7cc
commit 9344c27021
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GPG Key ID: 66886C0F12D595ED
1 changed files with 7 additions and 4 deletions
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11
vlib/builtin/array.v
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@ -204,7 +204,9 @@ pub fn (mut a array) insert(i int, val voidptr) {
panic('array.insert: index out of range (i == $i, a.len == $a.len)')
}
}
a.ensure_cap(a.len + 1)
if a.len >= a.cap {
a.ensure_cap(a.len + 1)
}
unsafe {
vmemmove(a.get_unsafe(i + 1), a.get_unsafe(i), (a.len - i) * a.element_size)
a.set_unsafe(i, val)
@ -569,7 +571,9 @@ fn (mut a array) set(i int, val voidptr) {
}
fn (mut a array) push(val voidptr) {
a.ensure_cap(a.len + 1)
if a.len >= a.cap {
a.ensure_cap(a.len + 1)
}
unsafe { vmemmove(&byte(a.data) + a.element_size * a.len, val, a.element_size) }
a.len++
}
@ -578,16 +582,15 @@ fn (mut a array) push(val voidptr) {
// `val` is array.data and user facing usage is `a << [1,2,3]`
[unsafe]
pub fn (mut a3 array) push_many(val voidptr, size int) {
a3.ensure_cap(a3.len + size)
if a3.data == val && !isnil(a3.data) {
// handle `arr << arr`
copy := a3.clone()
a3.ensure_cap(a3.len + size)
unsafe {
// vmemcpy(a.data, copy.data, copy.element_size * copy.len)
vmemcpy(a3.get_unsafe(a3.len), copy.data, a3.element_size * size)
}
} else {
a3.ensure_cap(a3.len + size)
if !isnil(a3.data) && !isnil(val) {
unsafe { vmemcpy(a3.get_unsafe(a3.len), val, a3.element_size * size) }
}