1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
import { readFileSync } from "fs";
import { dirname } from "path";
import { fileURLToPath } from "url";
import { bench, run, group } from "./runner.mjs";
import { createRequire } from "module";
const require = createRequire(import.meta.url);
const esbuild_ = require("esbuild/lib/main");
const swc_ = require("@swc/core");
const babel_ = require("@babel/core");
const code = readFileSync(dirname(fileURLToPath(import.meta.url)) + "/../../src/test/fixtures/simple.jsx", "utf-8");
async function getWithName(name) {
let transformSync;
let transform;
let opts;
if (name === "bun") {
const transpiler = new Bun.Transpiler({ loader: "jsx" });
transformSync = transpiler.transformSync.bind(transpiler);
transform = transpiler.transform.bind(transpiler);
opts = "jsx";
} else if (name === "esbuild") {
try {
transformSync = esbuild_.transformSync;
transform = esbuild_.transform;
opts = { loader: "jsx" };
} catch (exception) {
throw exception;
}
} else if (name === "swc") {
try {
transformSync = swc_.transformSync;
transform = swc_.transform;
opts = {
sourceMaps: false,
inlineSourcesContent: false,
jsc: {
target: "es2022",
parser: {
jsx: true,
},
},
};
} catch (exception) {
throw exception;
}
} else if (name === "babel") {
try {
transformSync = babel_.transformSync;
transform = babel_.transform;
opts = {
sourceMaps: false,
presets: ["@babel/preset-react"],
};
} catch (exception) {
throw exception;
}
}
return {
transformSync,
transform,
opts,
name,
};
}
const bun = process.isBun ? await getWithName("bun") : null;
const esbuild = await getWithName("esbuild");
const swc = await getWithName("swc");
const babel = await getWithName("babel");
const transpilers = [bun, esbuild, swc, babel].filter(Boolean);
group("transformSync (" + ((code.length / 1024) | 0) + " KB jsx file)", () => {
for (let { name, transformSync, opts } of transpilers) {
bench(name, () => {
transformSync(code, opts);
});
}
});
group("tranform x 5", () => {
for (let { name, transform, opts } of transpilers) {
bench(name, async () => {
return Promise.all([
transform(code, opts),
transform(code + "\n", opts),
transform("\n" + code + "\n", opts),
transform("\n" + code + "\n\n", opts),
transform("\n\n" + code + "\n\n", opts),
]);
});
}
});
await run();
|
