| 8 | }); |
| 9 | |
| 10 | async function main({ n, type }) { |
| 11 | switch (type) { |
| 12 | case 'normal': { |
| 13 | const rs = new ReadableStream({ |
| 14 | pull: function(controller) { |
| 15 | controller.enqueue('a'); |
| 16 | }, |
| 17 | }); |
| 18 | const reader = rs.getReader(); |
| 19 | let x = null; |
| 20 | bench.start(); |
| 21 | for (let i = 0; i < n; i++) { |
| 22 | const { value } = await reader.read(); |
| 23 | x = value; |
| 24 | } |
| 25 | bench.end(n); |
| 26 | console.assert(x); |
| 27 | break; |
| 28 | } |
| 29 | case 'byob': { |
| 30 | const encode = new TextEncoder(); |
| 31 | const rs = new ReadableStream({ |
| 32 | type: 'bytes', |
| 33 | pull: function(controller) { |
| 34 | controller.enqueue(encode.encode('a')); |
| 35 | }, |
| 36 | }); |
| 37 | const reader = rs.getReader({ mode: 'byob' }); |
| 38 | let x = null; |
| 39 | bench.start(); |
| 40 | for (let i = 0; i < n; i++) { |
| 41 | const { value } = await reader.read(new Uint8Array(1)); |
| 42 | x = value; |
| 43 | } |
| 44 | bench.end(n); |
| 45 | console.assert(x); |
| 46 | break; |
| 47 | } |
| 48 | } |
| 49 | } |