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dcode
2019-03-18 00:40:55 +01:00
parent edb2299f13
commit ba4c00efbd
20 changed files with 933 additions and 1050 deletions
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18
std/assembly/array.ts
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@ -4,13 +4,13 @@ import { COMPARATOR, SORT } from "./util/sort";
import { itoa, dtoa, itoa_stream, dtoa_stream, MAX_DOUBLE_LENGTH } from "./util/number";
import { isArray as builtin_isArray } from "./builtins";
/** Ensures that the given array has _at least_ the specified length. */
function ensureLength(array: ArrayBufferView, length: i32, alignLog2: u32): void {
/** Ensures that the given array has _at least_ the specified capacity. */
function ensureCapacity(array: ArrayBufferView, minCapacity: i32, alignLog2: u32): void {
var oldData = array.data;
var oldCapacity = oldData.byteLength >>> alignLog2;
if (<u32>length > <u32>oldCapacity) {
if (<u32>length > <u32>(MAX_BYTELENGTH >>> alignLog2)) throw new RangeError("Invalid array length");
let newByteLength = length << alignLog2;
if (<u32>minCapacity > <u32>oldCapacity) {
if (<u32>minCapacity > <u32>(MAX_BYTELENGTH >>> alignLog2)) throw new RangeError("Invalid array length");
let newByteLength = minCapacity << alignLog2;
let newData = REALLOCATE(changetype<usize>(oldData), <usize>newByteLength); // registers on move
if (newData !== changetype<usize>(oldData)) {
array.data = changetype<ArrayBuffer>(newData); // links
@ -41,7 +41,7 @@ export class Array<T> extends ArrayBufferView {
}
set length(length: i32) {
ensureLength(changetype<ArrayBufferView>(this), length, alignof<T>());
ensureCapacity(this, length, alignof<T>());
this.length_ = length;
}
@ -61,7 +61,7 @@ export class Array<T> extends ArrayBufferView {
@operator("[]=")
private __set(index: i32, value: T): void { // unchecked is built-in
ensureLength(changetype<ArrayBufferView>(this), index + 1, alignof<T>());
ensureCapacity(this, index + 1, alignof<T>());
store<T>(this.dataStart + (<usize>index << alignof<T>()), value);
if (isManaged<T>()) LINK(value, this);
if (index >= this.length_) this.length_ = index + 1;
@ -119,7 +119,7 @@ export class Array<T> extends ArrayBufferView {
push(element: T): i32 {
var newLength = this.length_ + 1;
ensureLength(changetype<ArrayBufferView>(this), newLength, alignof<T>());
ensureCapacity(this, newLength, alignof<T>());
this.length_ = newLength;
store<T>(this.dataStart + (<usize>(newLength - 1) << alignof<T>()), element);
if (isManaged<T>()) LINK(element, this);
@ -266,7 +266,7 @@ export class Array<T> extends ArrayBufferView {
unshift(element: T): i32 {
var newLength = this.length_ + 1;
ensureLength(changetype<ArrayBufferView>(this), newLength, alignof<T>());
ensureCapacity(this, newLength, alignof<T>());
var base = this.dataStart;
memory.copy(
base + sizeof<T>(),