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dcode
2019-03-14 05:11:03 +01:00
parent 6163a73ab5
commit a5e14a0eaa
24 changed files with 739 additions and 102 deletions
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14
std/assembly/util/sort.ts
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@ -1,45 +1,59 @@
import { compareImpl } from "./string";
// @ts-ignore: decorator
@inline export function COMPARATOR<T>(): (a: T, b: T) => i32 {
if (isInteger<T>()) {
if (isSigned<T>() && sizeof<T>() <= 4) {
// @ts-ignore: type
return (a: T, b: T): i32 => (<i32>(a - b));
} else {
// @ts-ignore: type
return (a: T, b: T): i32 => (<i32>(a > b) - <i32>(a < b));
}
} else if (isFloat<T>()) {
if (sizeof<T>() == 4) {
return (a: T, b: T): i32 => {
// @ts-ignore: type
var ia = reinterpret<i32>(a);
// @ts-ignore: type
var ib = reinterpret<i32>(b);
ia ^= (ia >> 31) >>> 1;
ib ^= (ib >> 31) >>> 1;
// @ts-ignore: type
return <i32>(ia > ib) - <i32>(ia < ib);
};
} else {
return (a: T, b: T): i32 => {
// @ts-ignore: type
var ia = reinterpret<i64>(a);
// @ts-ignore: type
var ib = reinterpret<i64>(b);
ia ^= (ia >> 63) >>> 1;
ib ^= (ib >> 63) >>> 1;
// @ts-ignore: type
return <i32>(ia > ib) - <i32>(ia < ib);
};
}
} else if (isString<T>()) {
return (a: T, b: T): i32 => {
if (a === b || a === null || b === null) return 0;
// @ts-ignore: type
var alen = (<string>a).length;
// @ts-ignore: type
var blen = (<string>b).length;
if (!alen && !blen) return 0;
if (!alen) return -1;
if (!blen) return 1;
// @ts-ignore: type
return compareImpl(<string>a, 0, <string>b, 0, <usize>min(alen, blen));
};
} else {
// @ts-ignore: type
return (a: T, b: T): i32 => (<i32>(a > b) - <i32>(a < b));
}
}
// @ts-ignore: decorator
@inline export function SORT<T>(
dataStart: usize,
length: i32,