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core/encoding/cbor: allow unmarshalling non-string map keys

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This commit is contained in:
Laytan Laats
2024-09-11 15:56:18 +02:00
parent b379d25a12
commit 788e4b2b6a
1 changed files with 11 additions and 27 deletions
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38
core/encoding/cbor/unmarshal.odin
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@@ -675,10 +675,6 @@ _unmarshal_map :: proc(d: Decoder, v: any, ti: ^reflect.Type_Info, hdr: Header,
return
case reflect.Type_Info_Map:
if !reflect.is_string(t.key) {
return _unsupported(v, hdr)
}
raw_map := (^mem.Raw_Map)(v.data)
if raw_map.allocator.procedure == nil {
raw_map.allocator = context.allocator
@@ -695,43 +691,31 @@ _unmarshal_map :: proc(d: Decoder, v: any, ti: ^reflect.Type_Info, hdr: Header,
new_len := uintptr(min(scap, runtime.map_len(raw_map^)+length))
runtime.map_reserve_dynamic(raw_map, t.map_info, new_len) or_return
}
// Temporary memory to unmarshal keys into before inserting them into the map.
// Temporary memory to unmarshal values into before inserting them into the map.
elem_backing := mem.alloc_bytes_non_zeroed(t.value.size, t.value.align, context.temp_allocator) or_return
defer delete(elem_backing, context.temp_allocator)
map_backing_value := any{raw_data(elem_backing), t.value.id}
for idx := 0; unknown || idx < length; idx += 1 {
// Decode key, keys can only be strings.
key: string
if keyv, kerr := decode_key(d, v); unknown && kerr == .Break {
break
} else if kerr != nil {
err = kerr
return
} else {
key = keyv
}
// Temporary memory to unmarshal keys into.
key_backing := mem.alloc_bytes_non_zeroed(t.key.size, t.key.align, context.temp_allocator) or_return
defer delete(key_backing, context.temp_allocator)
key_backing_value := any{raw_data(key_backing), t.key.id}
for idx := 0; unknown || idx < length; idx += 1 {
if unknown || idx > scap {
// Reserve space for new element so we can return allocator errors.
new_len := uintptr(runtime.map_len(raw_map^)+1)
runtime.map_reserve_dynamic(raw_map, t.map_info, new_len) or_return
}
mem.zero_slice(key_backing)
_unmarshal_value(d, key_backing_value, _decode_header(r) or_return) or_return
mem.zero_slice(elem_backing)
_unmarshal_value(d, map_backing_value, _decode_header(r) or_return) or_return
key_ptr := rawptr(&key)
key_cstr: cstring
if reflect.is_cstring(t.key) {
assert_safe_for_cstring(key)
key_cstr = cstring(raw_data(key))
key_ptr = &key_cstr
}
set_ptr := runtime.__dynamic_map_set_without_hash(raw_map, t.map_info, key_ptr, map_backing_value.data)
set_ptr := runtime.__dynamic_map_set_without_hash(raw_map, t.map_info, key_backing_value.data, map_backing_value.data)
// We already reserved space for it, so this shouldn't fail.
assert(set_ptr != nil)
}