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checked builtin array get, optimize abv layout

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dcode
2019-03-17 08:46:26 +01:00
parent e63c6bd388
commit f21b339563
20 changed files with 4772 additions and 1568 deletions
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63
std/assembly/array.ts
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@ -4,6 +4,22 @@ 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 {
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;
let newData = REALLOCATE(changetype<usize>(oldData), <usize>newByteLength); // registers on move
if (newData !== changetype<usize>(oldData)) {
array.data = changetype<ArrayBuffer>(newData); // links
array.dataStart = newData;
array.dataLength = newByteLength;
}
}
}
export class Array<T> extends ArrayBufferView {
private length_: i32;
@ -25,26 +41,10 @@ export class Array<T> extends ArrayBufferView {
}
set length(length: i32) {
this.resize(length);
ensureLength(changetype<ArrayBufferView>(this), length, alignof<T>());
this.length_ = length;
}
private resize(length: i32): void {
var oldData = this.data;
var oldCapacity = oldData.byteLength >>> alignof<T>();
if (<u32>length > <u32>oldCapacity) {
const MAX_LENGTH = MAX_BYTELENGTH >>> alignof<T>();
if (<u32>length > <u32>MAX_LENGTH) throw new RangeError("Invalid array length");
let newCapacity = <usize>length << alignof<T>();
let newData = REALLOCATE(changetype<usize>(oldData), newCapacity); // registers on move
if (newData !== changetype<usize>(oldData)) {
this.data = changetype<ArrayBuffer>(newData); // links
this.dataStart = newData;
this.dataEnd = newData + newCapacity;
}
}
}
every(callbackfn: (element: T, index: i32, array: Array<T>) => bool): bool {
for (let index = 0, length = this.length_; index < min(length, this.length_); ++index) {
if (!callbackfn(load<T>(this.dataStart + (<usize>index << alignof<T>())), index, this)) return false;
@ -59,33 +59,14 @@ export class Array<T> extends ArrayBufferView {
return -1;
}
// @operator("[]")
// private __get(index: i32): T {
// var buffer = this.buffer_;
// return <u32>index < <u32>(buffer.byteLength >>> alignof<T>())
// ? LOAD<T>(buffer, index)
// : <T>unreachable();
// }
// @operator("{}")
// private __unchecked_get(index: i32): T {
// return LOAD<T>(this.buffer_, index);
// }
@operator("[]=")
private __set(index: i32, value: T): void {
this.resize(index + 1);
private __set(index: i32, value: T): void { // unchecked is built-in
ensureLength(changetype<ArrayBufferView>(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;
}
// @operator("{}=")
// private __unchecked_set(index: i32, value: T): void {
// STORE<T>(this.buffer_, index, value);
// if (isManaged<T>()) __gc_link(changetype<usize>(this), changetype<usize>(value)); // tslint:disable-line
// }
fill(value: T, start: i32 = 0, end: i32 = i32.MAX_VALUE): this {
var dataStart = this.dataStart;
var length = this.length_;
@ -138,7 +119,7 @@ export class Array<T> extends ArrayBufferView {
push(element: T): i32 {
var newLength = this.length_ + 1;
this.resize(newLength);
ensureLength(changetype<ArrayBufferView>(this), newLength, alignof<T>());
this.length_ = newLength;
store<T>(this.dataStart + (<usize>(newLength - 1) << alignof<T>()), element);
if (isManaged<T>()) LINK(element, this);
@ -285,7 +266,7 @@ export class Array<T> extends ArrayBufferView {
unshift(element: T): i32 {
var newLength = this.length_;
this.resize(newLength);
ensureLength(changetype<ArrayBufferView>(this), newLength, alignof<T>());
var base = this.dataStart;
memory.copy(
base + sizeof<T>(),
@ -347,7 +328,7 @@ export class Array<T> extends ArrayBufferView {
reverse(): Array<T> {
var front = this.dataStart;
var back = this.dataEnd - sizeof<T>();
var back = this.dataStart + this.dataLength - sizeof<T>();
while (front < back) {
let temp = load<T>(front);
store<T>(front, load<T>(back));