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Add preliminary support for map keys/values, set values

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Makes arrays instead of iterators for now
This commit is contained in:
dcode
2019-05-28 15:49:56 +02:00
parent fe70f1d863
commit d9fbf8a2dd
3 changed files with 49 additions and 4 deletions
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28
std/assembly/map.ts
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@ -189,6 +189,34 @@ export class Map<K,V> {
this.entriesOffset = this.entriesCount;
}
keys(): K[] {
// FIXME: this is preliminary, needs iterators/closures
var start = changetype<usize>(this.entries);
var size = this.entriesOffset;
var keys = Array.create<K>(size);
for (let i = 0; i < size; ++i) {
let entry = changetype<MapEntry<K,V>>(start + <usize>i * ENTRY_SIZE<K,V>());
if (!(entry.taggedNext & EMPTY)) {
keys.push(entry.key);
}
}
return keys;
}
values(): V[] {
// FIXME: this is preliminary, needs iterators/closures
var start = changetype<usize>(this.entries);
var size = this.entriesOffset;
var values = Array.create<V>(size);
for (let i = 0; i < size; ++i) {
let entry = changetype<MapEntry<K,V>>(start + <usize>i * ENTRY_SIZE<K,V>());
if (!(entry.taggedNext & EMPTY)) {
values.push(entry.value);
}
}
return values;
}
toString(): string {
return "[object Map]";
}