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Implement TypedArray#every/some/findIndex and improve map/reduce/reduceRight (#433)

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This commit is contained in:
jtenner
2019-01-24 02:33:22 -05:00
committed by Daniel Wirtz
parent d3715688fc
commit 3b1852bc37
6 changed files with 10339 additions and 2005 deletions
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86
std/assembly/internal/typedarray.ts
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@ -60,7 +60,7 @@ export abstract class TypedArray<T> {
}
@inline
export function FILL<TArray extends TypedArray<T>, T>(
export function FILL<TArray extends TypedArray<T>, T extends number>(
array: TArray,
value: NATIVE<T>,
start: i32,
@ -133,16 +133,16 @@ export function REDUCE<TArray extends TypedArray<T>, T, TRet>(
callbackfn: (accumulator: TRet, value: T, index: i32, array: TArray) => TRet,
initialValue: TRet
): TRet {
var index = 0;
var length = <i32>array.length;
while (index != length) {
var length = array.length;
var buffer = array.buffer;
var byteOffset = array.byteOffset;
for (let i = 0; i < length; i++) {
initialValue = callbackfn(
initialValue,
unchecked(array[index]),
index,
LOAD<T>(buffer, i, byteOffset),
i,
array,
);
++index;
}
return initialValue;
}
@ -153,16 +153,15 @@ export function REDUCE_RIGHT<TArray extends TypedArray<T>, T, TRet>(
callbackfn: (accumulator: TRet, value: T, index: i32, array: TArray) => TRet,
initialValue: TRet
): TRet {
var index = <i32>array.length - 1;
var length = -1;
while (index != length) {
var buffer = array.buffer;
var byteOffset = array.byteOffset;
for (let i = array.length - 1; i >= 0; i--) {
initialValue = callbackfn(
initialValue,
unchecked(array[index]),
index,
LOAD<T>(buffer, i, byteOffset),
i,
array,
);
--index;
}
return initialValue;
}
@ -172,12 +171,63 @@ export function MAP<TArray extends TypedArray<T>, T>(
array: TArray,
callbackfn: (value: T, index: i32, self: TArray) => T,
): TArray {
var length: i32 = array.length;
var length = array.length;
var buffer = array.buffer;
var byteOffset = array.byteOffset;
var result = instantiate<TArray>(length);
var i: i32 = 0;
while (i < length) {
unchecked(result[i] = callbackfn(array[i], i, <TArray>array));
++i;
var resultBuffer = result.buffer;
for (let i = 0; i < length; i++) {
STORE<T, NATIVE<T>>(resultBuffer, i, <NATIVE<T>>callbackfn(LOAD<T>(buffer, i, byteOffset), i, array));
}
return result;
}
@inline
export function FIND_INDEX<TArray extends TypedArray<T>, T>(
array: TArray,
callbackfn: (value: T, index: i32, array: TArray) => bool,
): i32 {
var length = array.length;
var buffer = array.buffer;
var byteOffset = array.byteOffset;
for (let i = 0; i < length; i++) {
if (callbackfn(LOAD<T>(buffer, i, byteOffset), i, array)) {
return i;
}
}
return -1;
}
@inline
export function SOME<TArray extends TypedArray<T>, T>(
array: TArray,
callbackfn: (value: T, index: i32, array: TArray) => bool,
): bool {
var length = array.length;
var buffer = array.buffer;
var byteOffset = array.byteOffset;
for (let i = 0; i < length; i++) {
if (callbackfn(LOAD<T>(buffer, i, byteOffset), i, array)) {
return true;
}
}
return false;
}
@inline
export function EVERY<TArray extends TypedArray<T>, T>(
array: TArray,
callbackfn: (value: T, index: i32, array: TArray) => bool,
): bool {
var length = array.length;
var buffer = array.buffer;
var byteOffset = array.byteOffset;
for (let i = 0; i < length; i++) {
if (callbackfn(LOAD<T>(buffer, i, byteOffset), i, array)) {
continue;
}
return false;
}
return true;
}