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package slice
import "intrinsics"
import "core:runtime"
import "core:mem"
_ :: intrinsics;
_ :: runtime;
_ :: mem;
map_keys :: proc(m: $M/map[$K]$V, allocator := context.allocator) -> (keys: []K) {
keys = make(type_of(keys), len(m), allocator);
i := 0;
for key in m {
keys[i] = key;
i += 1;
}
return;
}
map_values :: proc(m: $M/map[$K]$V, allocator := context.allocator) -> (values: []V) {
values = make(type_of(values), len(m), allocator);
i := 0;
for _, value in m {
values[i] = value;
i += 1;
}
return;
}
Map_Entry :: struct(Key, Value: typeid) {
key: Key,
value: Value,
}
Map_Entry_Info :: struct(Key, Value: typeid) {
hash: uintptr,
key: Key,
value: Value,
}
map_entries :: proc(m: $M/map[$K]$V, allocator := context.allocator) -> (entries: []Map_Entry(K, V)) {
entries = make(type_of(entries), len(m), allocator);
i := 0;
for key, value in m {
entries[i].key = key;
entries[i].value = value;
i += 1;
}
return;
}
map_entry_infos :: proc(m: $M/map[$K]$V, allocator := context.allocator) -> (entries: []Map_Entry_Info(K, V)) #no_bounds_check {
m := m;
rm := (^mem.Raw_Map)(&m);
info := runtime.type_info_base(type_info_of(M)).variant.(runtime.Type_Info_Map);
gs := runtime.type_info_base(info.generated_struct).variant.(runtime.Type_Info_Struct);
ed := runtime.type_info_base(gs.types[1]).variant.(runtime.Type_Info_Dynamic_Array);
entry_type := ed.elem.variant.(runtime.Type_Info_Struct);
key_offset := entry_type.offsets[2];
value_offset := entry_type.offsets[3];
entry_size := uintptr(ed.elem_size);
entries = make(type_of(entries), rm.entries.len);
data := uintptr(rm.entries.data);
for i in 0..<rm.entries.len {
header := (^runtime.Map_Entry_Header)(data);
hash := header.hash;
key := (^K)(data + key_offset)^;
value := (^V)(data + value_offset)^;
entries[i] = {hash, key, value};
data += entry_size;
}
return;
}
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