Swap-Aggregator-Subgraph/node_modules/assemblyscript/std/assembly/staticarray.ts
2022-07-03 07:27:35 +05:30

262 lines
9.9 KiB
TypeScript

/// <reference path="./rt/index.d.ts" />
import { OBJECT, BLOCK_MAXSIZE, TOTAL_OVERHEAD } from "./rt/common";
import { idof } from "./builtins";
import { Array } from "./array";
import { E_INDEXOUTOFRANGE, E_INVALIDLENGTH, E_HOLEYARRAY } from "./util/error";
import { joinBooleanArray, joinIntegerArray, joinFloatArray, joinStringArray, joinReferenceArray } from "./util/string";
@final
export class StaticArray<T> {
[key: number]: T;
// Note that the interface of StaticArray instances must be a semantically
// compatible subset of Array<T> in order for syntax highlighting to work
// properly, for instance when creating static arrays from array literals.
// The additionally provided static methods take care of dealing with static
// arrays exclusively, without having to convert to Array<T> first.
static fromArray<T>(source: Array<T>): StaticArray<T> {
var length = source.length;
var outSize = <usize>length << alignof<T>();
var out = changetype<StaticArray<T>>(__new(outSize, idof<StaticArray<T>>()));
if (isManaged<T>()) {
let sourcePtr = source.dataStart;
for (let i = 0; i < length; ++i) {
let off = <usize>i << alignof<T>();
let ref = load<usize>(sourcePtr + off);
store<usize>(changetype<usize>(out) + off, ref);
__link(changetype<usize>(out), ref, true);
}
} else {
memory.copy(changetype<usize>(out), source.dataStart, outSize);
}
return out;
}
static concat<T>(source: StaticArray<T>, other: StaticArray<T>): StaticArray<T> {
var sourceLen = source.length;
var otherLen = select(0, other.length, other === null);
var outLen = sourceLen + otherLen;
if (<u32>outLen > <u32>BLOCK_MAXSIZE >>> alignof<T>()) throw new Error(E_INVALIDLENGTH);
var out = changetype<StaticArray<T>>(__new(<usize>outLen << alignof<T>(), idof<StaticArray<T>>()));
var outStart = changetype<usize>(out);
var sourceSize = <usize>sourceLen << alignof<T>();
if (isManaged<T>()) {
for (let offset: usize = 0; offset < sourceSize; offset += sizeof<T>()) {
let ref = load<usize>(changetype<usize>(source) + offset);
store<usize>(outStart + offset, ref);
__link(changetype<usize>(out), ref, true);
}
outStart += sourceSize;
let otherSize = <usize>otherLen << alignof<T>();
for (let offset: usize = 0; offset < otherSize; offset += sizeof<T>()) {
let ref = load<usize>(changetype<usize>(other) + offset);
store<usize>(outStart + offset, ref);
__link(changetype<usize>(out), ref, true);
}
} else {
memory.copy(outStart, changetype<usize>(source), sourceSize);
memory.copy(outStart + sourceSize, changetype<usize>(other), <usize>otherLen << alignof<T>());
}
return out;
}
static slice<T>(source: StaticArray<T>, start: i32 = 0, end: i32 = i32.MAX_VALUE): StaticArray<T> {
var length = source.length;
start = start < 0 ? max(start + length, 0) : min(start, length);
end = end < 0 ? max(end + length, 0) : min(end , length);
length = max(end - start, 0);
var sliceSize = <usize>length << alignof<T>();
var slice = changetype<StaticArray<T>>(__new(sliceSize, idof<StaticArray<T>>()));
var sourcePtr = changetype<usize>(source) + (<usize>start << alignof<T>());
if (isManaged<T>()) {
let off: usize = 0;
while (off < sliceSize) {
let ref = load<usize>(sourcePtr + off);
store<usize>(changetype<usize>(slice) + off, ref);
__link(changetype<usize>(slice), ref, true);
off += sizeof<usize>();
}
} else {
memory.copy(changetype<usize>(slice), sourcePtr, sliceSize);
}
return slice;
}
constructor(length: i32) {
if (<u32>length > <u32>BLOCK_MAXSIZE >>> alignof<T>()) throw new RangeError(E_INVALIDLENGTH);
var outSize = <usize>length << alignof<T>();
var out = changetype<StaticArray<T>>(__new(outSize, idof<StaticArray<T>>()));
memory.fill(changetype<usize>(out), 0, outSize);
return out;
}
get length(): i32 {
return changetype<OBJECT>(changetype<usize>(this) - TOTAL_OVERHEAD).rtSize >>> alignof<T>();
}
at(index: i32): T {
var len = this.length;
index += select(0, len, index >= 0);
if (<u32>index >= <u32>len) throw new RangeError(E_INDEXOUTOFRANGE);
var value = load<T>(changetype<usize>(this) + (<usize>index << alignof<T>()));
if (isReference<T>()) {
if (!isNullable<T>()) {
if (!changetype<usize>(value)) throw new Error(E_HOLEYARRAY);
}
}
return value;
}
@operator("[]") private __get(index: i32): T {
if (<u32>index >= <u32>this.length) throw new RangeError(E_INDEXOUTOFRANGE);
var value = load<T>(changetype<usize>(this) + (<usize>index << alignof<T>()));
if (isReference<T>()) {
if (!isNullable<T>()) {
if (!changetype<usize>(value)) throw new Error(E_HOLEYARRAY);
}
}
return value;
}
@unsafe @operator("{}") private __uget(index: i32): T {
return load<T>(changetype<usize>(this) + (<usize>index << alignof<T>()));
}
@operator("[]=") private __set(index: i32, value: T): void {
if (<u32>index >= <u32>this.length) throw new RangeError(E_INDEXOUTOFRANGE);
this.__uset(index, value);
}
@unsafe @operator("{}=") private __uset(index: i32, value: T): void {
store<T>(changetype<usize>(this) + (<usize>index << alignof<T>()), value);
if (isManaged<T>()) {
__link(changetype<usize>(this), changetype<usize>(value), true);
}
}
includes(value: T, fromIndex: i32 = 0): bool {
if (isFloat<T>()) {
let length = this.length;
if (length == 0 || fromIndex >= length) return false;
if (fromIndex < 0) fromIndex = max(length + fromIndex, 0);
while (fromIndex < length) {
let elem = load<T>(changetype<usize>(this) + (<usize>fromIndex << alignof<T>()));
// @ts-ignore
if (elem == value || isNaN(elem) & isNaN(value)) return true;
++fromIndex;
}
return false;
} else {
return this.indexOf(value, fromIndex) >= 0;
}
}
indexOf(value: T, fromIndex: i32 = 0): i32 {
var length = this.length;
if (length == 0 || fromIndex >= length) return -1;
if (fromIndex < 0) fromIndex = max(length + fromIndex, 0);
while (fromIndex < length) {
if (load<T>(changetype<usize>(this) + (<usize>fromIndex << alignof<T>())) == value) return fromIndex;
++fromIndex;
}
return -1;
}
lastIndexOf(value: T, fromIndex: i32 = this.length): i32 {
var length = this.length;
if (length == 0) return -1;
if (fromIndex < 0) fromIndex = length + fromIndex;
else if (fromIndex >= length) fromIndex = length - 1;
while (fromIndex >= 0) {
if (load<T>(changetype<usize>(this) + (<usize>fromIndex << alignof<T>())) == value) return fromIndex;
--fromIndex;
}
return -1;
}
concat(other: Array<T>): Array<T> {
var thisLen = this.length;
var otherLen = select(0, other.length, other === null);
var outLen = thisLen + otherLen;
if (<u32>outLen > <u32>BLOCK_MAXSIZE >>> alignof<T>()) throw new Error(E_INVALIDLENGTH);
var out = changetype<Array<T>>(__newArray(outLen, alignof<T>(), idof<Array<T>>()));
var outStart = out.dataStart;
var thisSize = <usize>thisLen << alignof<T>();
if (isManaged<T>()) {
let thisStart = changetype<usize>(this);
for (let offset: usize = 0; offset < thisSize; offset += sizeof<T>()) {
let ref = load<usize>(thisStart + offset);
store<usize>(outStart + offset, ref);
__link(changetype<usize>(out), ref, true);
}
outStart += thisSize;
let otherStart = other.dataStart;
let otherSize = <usize>otherLen << alignof<T>();
for (let offset: usize = 0; offset < otherSize; offset += sizeof<T>()) {
let ref = load<usize>(otherStart + offset);
store<usize>(outStart + offset, ref);
__link(changetype<usize>(out), ref, true);
}
} else {
memory.copy(outStart, changetype<usize>(this), thisSize);
memory.copy(outStart + thisSize, other.dataStart, <usize>otherLen << alignof<T>());
}
return out;
}
slice(start: i32 = 0, end: i32 = i32.MAX_VALUE): Array<T> {
var length = this.length;
start = start < 0 ? max(start + length, 0) : min(start, length);
end = end < 0 ? max(end + length, 0) : min(end , length);
length = max(end - start, 0);
var slice = changetype<Array<T>>(__newArray(length, alignof<T>(), idof<Array<T>>()));
var sliceBase = slice.dataStart;
var thisBase = changetype<usize>(this) + (<usize>start << alignof<T>());
if (isManaged<T>()) {
let off = <usize>0;
let end = <usize>length << alignof<usize>();
while (off < end) {
let ref = load<usize>(thisBase + off);
store<usize>(sliceBase + off, ref);
__link(changetype<usize>(slice), ref, true);
off += sizeof<usize>();
}
} else {
memory.copy(sliceBase, thisBase, length << alignof<T>());
}
return slice;
}
join(separator: string = ","): string {
if (isBoolean<T>()) return joinBooleanArray(changetype<usize>(this), this.length, separator);
if (isInteger<T>()) return joinIntegerArray<T>(changetype<usize>(this), this.length, separator);
if (isFloat<T>()) return joinFloatArray<T>(changetype<usize>(this), this.length, separator);
if (ASC_SHRINK_LEVEL < 1) {
if (isString<T>()) return joinStringArray(changetype<usize>(this), this.length, separator);
}
if (isReference<T>()) return joinReferenceArray<T>(changetype<usize>(this), this.length, separator);
ERROR("unspported element type");
return <string>unreachable();
}
toString(): string {
return this.join();
}
// RT integration
@unsafe private __visit(cookie: u32): void {
if (isManaged<T>()) {
let cur = changetype<usize>(this);
let end = cur + changetype<OBJECT>(changetype<usize>(this) - TOTAL_OVERHEAD).rtSize;
while (cur < end) {
let val = load<usize>(cur);
if (val) __visit(val, cookie);
cur += sizeof<usize>();
}
}
}
}