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builtin: document rest of map.v (#8578)

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Larpon 2021-02-06 03:07:42 +01:00 committed by GitHub
parent ab279dace7
commit e83c39c81a
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1 changed files with 5 additions and 2 deletions
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7
vlib/builtin/map.v
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@ -78,7 +78,7 @@ const (
probe_inc = u32(0x01000000) probe_inc = u32(0x01000000)
) )
// This function is intended to be fast when // fast_string_eq is intended to be fast when
// the strings are very likely to be equal // the strings are very likely to be equal
// TODO: add branch prediction hints // TODO: add branch prediction hints
[inline] [inline]
@ -91,7 +91,7 @@ fn fast_string_eq(a string, b string) bool {
} }
} }
// Dynamic array with very low growth factor // DenseArray represents a dynamic array with very low growth factor
struct DenseArray { struct DenseArray {
key_bytes int key_bytes int
value_bytes int value_bytes int
@ -198,6 +198,7 @@ type MapCloneFn = fn (voidptr, voidptr)
type MapFreeFn = fn (voidptr) type MapFreeFn = fn (voidptr)
// map is the internal representation of a V `map` type.
pub struct map { pub struct map {
// Number of bytes of a key // Number of bytes of a key
key_bytes int key_bytes int
@ -717,6 +718,7 @@ fn (d &DenseArray) clone() DenseArray {
return res return res
} }
// clone returns a clone of the `map`.
[unsafe] [unsafe]
pub fn (m &map) clone() map { pub fn (m &map) clone() map {
metasize := int(sizeof(u32) * (m.even_index + 2 + m.extra_metas)) metasize := int(sizeof(u32) * (m.even_index + 2 + m.extra_metas))
@ -750,6 +752,7 @@ pub fn (m &map) clone() map {
return res return res
} }
// free releases all memory resources occupied by the `map`.
[unsafe] [unsafe]
pub fn (m &map) free() { pub fn (m &map) free() {
unsafe { free(m.metas) } unsafe { free(m.metas) }