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[Implement] Buffer#inspect #15

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[Implement] Buffer#inspect #15

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99b14a8
[Implement] Buffer#concat (todo: fix tlsf problem)
jtenner Jul 22, 2019
8812172
[Fix] Clean up inspect implementation
jtenner Jul 23, 2019
01d079b
[Fix] Edge case when length = 0, todo: more optimization
jtenner Jul 23, 2019
10a5c54
[Chore] switch to global
jtenner Jul 23, 2019
fe0cf50
[Chore] Merge master
jtenner Jul 23, 2019
f418fd0
[Optimize] memory.copy parameters with global strings
jtenner Jul 23, 2019
cea7473
[Merge] master, use Hex encoding method
jtenner Aug 1, 2019
e5f6e4a
Merge branch 'master' into inspect
jtenner Aug 6, 2019
628562c
[Fix] switch to hex
jtenner Aug 6, 2019
b956d5e
[Fix] types merge problem
jtenner Aug 6, 2019
e8afe85
[fix] example
jtenner Aug 6, 2019
b9ed343
[chore] remove unecessary comment
jtenner Aug 6, 2019
a5579cb
[fix] nit remove parenthesis
jtenner Aug 6, 2019
11cc4d3
[fix] remove type annotation
jtenner Aug 6, 2019
a00145c
[test] use create convenience method instead
jtenner Aug 6, 2019
ef7e34e
[fix] switch to known constant
jtenner Aug 6, 2019
5fe8a7f
[fix] add BUFFER_INSPECT_HEADER_BYTE_LEN constant
jtenner Aug 6, 2019
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[Chore] switch to global
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@jtenner
jtenner committed Jul 23, 2019
commit 10a5c54945865baa7886c8027cf856c8d2aece72
5 changes: 2 additions & 3 deletions assembly/buffer/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@ import { Uint8Array } from "typedarray";

const BUFFER_INSPECT_HEADER_START: string = "<Buffer ";

export let INSPECT_MAX_BYTES: i32 = 50;

export class Buffer extends Uint8Array {
constructor(size: i32) {
super(size);
Expand Down Expand Up @@ -47,11 +49,8 @@ export class Buffer extends Uint8Array {
return load<i8>(this.dataStart + usize(offset));
}

public INSPECT_MAX_BYTES: i32 = 50;

inspect(): string {
let byteLength = this.byteLength;
let INSPECT_MAX_BYTES = this.INSPECT_MAX_BYTES;
if (INSPECT_MAX_BYTES == 0 || byteLength == 0) return "<Buffer >";

// Calculate if an elipsis will be in the string
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16 changes: 16 additions & 0 deletions assembly/node.d.ts
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Expand Up @@ -14,3 +14,19 @@ declare class Buffer extends Uint8Array {
/** Inspect a buffer. */
inspect(): string;
}

declare module "buffer" {
/**
* The maximum number of bytes to inspect on a buffer.
*
* @example
* import { INSPECT_MAX_BYTES } from "buffer";
* // @ts-ignore: This is treated like a global
* INSPECT_MAX_BYTES = <i32>10;
*/
export var INSPECT_MAX_BYTES: i32;

// To export the buffer, we must obtain the `typeof Buffer`
const BuffType: typeof Buffer;
export { BuffType as Buffer };
}
3 changes: 2 additions & 1 deletion tests/buffer.spec.ts
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Expand Up @@ -10,6 +10,7 @@
* });
*/
import { BLOCK_MAXSIZE } from "rt/common";
import { INSPECT_MAX_BYTES } from "buffer";

describe("buffer", () => {
test("#constructor", () => {
Expand Down Expand Up @@ -95,7 +96,7 @@ describe("buffer", () => {
for (let i = 0; i < 16; i++) buff[i] = i;
let result = buff.inspect();
expect<string>(result).toBe("<Buffer 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f>");
buff.INSPECT_MAX_BYTES = 5;
INSPECT_MAX_BYTES = 5;
result = buff.inspect();
expect<string>(result).toBe("<Buffer 00 01 02 03 04...>");

Expand Down