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Optimize array functional loops (#359)

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This commit is contained in:
Max Graey
2018-12-07 16:37:33 +02:00
committed by Daniel Wirtz
parent ebae7cbd73
commit 934f05eed9
3 changed files with 178 additions and 198 deletions
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13
std/assembly/array.ts
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@ -74,7 +74,7 @@ export class Array<T> {
every(callbackfn: (element: T, index: i32, array: Array<T>) => bool): bool {
var buffer = this.buffer_;
for (let index = 0, toIndex = this.length_; index < toIndex && index < this.length_; ++index) {
for (let index = 0, toIndex = this.length_; index < min(toIndex, this.length_); ++index) {
if (!callbackfn(LOAD<T>(buffer, index), index, this)) return false;
}
return true;
@ -82,7 +82,7 @@ export class Array<T> {
findIndex(predicate: (element: T, index: i32, array: Array<T>) => bool): i32 {
var buffer = this.buffer_;
for (let index = 0, toIndex = this.length_; index < toIndex && index < this.length_; ++index) {
for (let index = 0, toIndex = this.length_; index < min(toIndex, this.length_); ++index) {
if (predicate(LOAD<T>(buffer, index), index, this)) return index;
}
return -1;
@ -262,7 +262,7 @@ export class Array<T> {
var length = this.length_;
var result = new Array<U>(length);
var resultBuffer = result.buffer_;
for (let index = 0; index < length && index < this.length_; ++index) {
for (let index = 0; index < min(length, this.length_); ++index) {
STORE<U>(resultBuffer, index, callbackfn(LOAD<T>(buffer, index), index, this));
}
return result;
@ -270,9 +270,8 @@ export class Array<T> {
filter(callbackfn: (value: T, index: i32, array: Array<T>) => bool): Array<T> {
var buffer = this.buffer_;
var length = this.length_;
var result = new Array<T>();
for (let index = 0; index < length && index < this.length_; ++index) {
for (let index = 0, toIndex = this.length_; index < min(toIndex, this.length_); ++index) {
let value = LOAD<T>(buffer, index);
if (callbackfn(value, index, this)) result.push(value);
}
@ -285,7 +284,7 @@ export class Array<T> {
): U {
var accum = initialValue;
var buffer = this.buffer_;
for (let index = 0, toIndex = this.length_; index < toIndex && index < this.length_; ++index) {
for (let index = 0, toIndex = this.length_; index < min(toIndex, this.length_); ++index) {
accum = callbackfn(accum, LOAD<T>(buffer, index), index, this);
}
return accum;
@ -321,7 +320,7 @@ export class Array<T> {
some(callbackfn: (element: T, index: i32, array: Array<T>) => bool): bool {
var buffer = this.buffer_;
for (let index = 0, toIndex = this.length_; index < toIndex && index < this.length_; ++index) {
for (let index = 0, toIndex = this.length_; index < min(toIndex, this.length_); ++index) {
if (callbackfn(LOAD<T>(buffer, index), index, this)) return true;
}
return false;