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guard, info on never null, more general array rt

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dcode
2019-03-22 15:43:07 +01:00
parent c2ac1a0375
commit 7c0dc66849
69 changed files with 6066 additions and 4930 deletions
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12
std/assembly/fixedarray.ts
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@ -1,4 +1,5 @@
import { ALLOCATE, REGISTER, MAX_BYTELENGTH, HEADER, HEADER_SIZE, RETAIN, RELEASE } from "./runtime";
import { E_INDEXOUTOFRANGE, E_INVALIDLENGTH, E_HOLEYARRAY } from "./util/error";
// NOTE: DO NOT USE YET!
@ -9,7 +10,12 @@ export class FixedArray<T> {
[key: number]: T;
constructor(length: i32) {
if (<u32>length > <u32>MAX_BYTELENGTH >>> alignof<T>()) throw new RangeError("Invalid length");
if (<u32>length > <u32>MAX_BYTELENGTH >>> alignof<T>()) throw new RangeError(E_INVALIDLENGTH);
if (isReference<T>()) {
if (!isNullable<T>()) {
if (length) throw new Error(E_HOLEYARRAY);
}
}
var outSize = <usize>length << alignof<T>();
var out = ALLOCATE(outSize);
memory.fill(out, 0, outSize);
@ -21,12 +27,12 @@ export class FixedArray<T> {
}
@operator("[]") private __get(index: i32): T {
if (<u32>index >= <u32>this.length) throw new RangeError("Offset out of bounds");
if (<u32>index >= <u32>this.length) throw new RangeError(E_INDEXOUTOFRANGE);
return this.__unchecked_get(index);
}
@operator("[]=") private __set(index: i32, value: T): void {
if (<u32>index >= <u32>this.length) throw new RangeError("Offset out of bounds");
if (<u32>index >= <u32>this.length) throw new RangeError(E_INDEXOUTOFRANGE);
return this.__unchecked_set(index, value);
}