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stdlib unlink wiring

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This commit is contained in:
dcode
2019-03-20 17:12:33 +01:00
parent 9b664dc175
commit 952ac8627d
6 changed files with 65 additions and 59 deletions
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36
std/assembly/array.ts
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@ -1,4 +1,4 @@
import { ALLOCATE, REALLOCATE, DISCARD, LINK, REGISTER, MAX_BYTELENGTH, ArrayBufferView } from "./runtime";
import { ALLOCATE, REALLOCATE, DISCARD, LINK, REGISTER, MAX_BYTELENGTH, ArrayBufferView, UNLINK } from "./runtime";
import { ArrayBuffer } from "./arraybuffer";
import { COMPARATOR, SORT } from "./util/sort";
import { itoa, dtoa, itoa_stream, dtoa_stream, MAX_DOUBLE_LENGTH } from "./util/number";
@ -73,11 +73,14 @@ export class Array<T> extends ArrayBufferView {
@operator("[]=") // unchecked is built-in
private __set(index: i32, value: T): void {
ensureCapacity(this, index + 1, alignof<T>());
store<T>(this.dataStart + (<usize>index << alignof<T>()),
isManaged<T>()
? LINK<T,this>(value, this)
: value
);
if (isManaged<T>()) {
let offset = this.dataStart + (<usize>index << alignof<T>());
let oldValue = load<T>(offset);
store<T>(offset, LINK<T,this>(value, this));
UNLINK<T,this>(oldValue, this); // order is important
} else {
store<T>(this.dataStart + (<usize>index << alignof<T>()), value);
}
if (index >= this.length_) this.length_ = index + 1;
}
@ -324,20 +327,21 @@ export class Array<T> extends ArrayBufferView {
var length = this.length_;
start = start < 0 ? max<i32>(length + start, 0) : min<i32>(start, length);
deleteCount = max<i32>(min<i32>(deleteCount, length - start), 0);
var splice = new Array<T>(deleteCount);
var spliceStart = splice.dataStart;
var result = new Array<T>(deleteCount);
var resultStart = result.dataStart;
var thisStart = this.dataStart;
var thisBase = thisStart + (<usize>start << alignof<T>());
for (let i = 0; i < deleteCount; ++i) {
let element = load<T>(thisBase + (<usize>i << alignof<T>()));
store<T>(spliceStart + (<usize>i << alignof<T>()),
isManaged<T>()
? LINK<T,Array<T>>(element, splice)
: element
);
let deleted = load<T>(thisBase + (<usize>i << alignof<T>()));
if (isManaged<T>()) {
store<T>(resultStart + (<usize>i << alignof<T>()), LINK<T,Array<T>>(deleted, result));
UNLINK<T,this>(deleted, this); // order is important
} else {
store<T>(resultStart + (<usize>i << alignof<T>()), deleted);
}
}
memory.copy(
splice.dataStart,
result.dataStart,
thisBase,
<usize>deleteCount << alignof<T>()
);
@ -350,7 +354,7 @@ export class Array<T> extends ArrayBufferView {
);
}
this.length_ = length - deleteCount;
return splice;
return result;
}
reverse(): Array<T> {