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This commit is contained in:
Jarred Sumner
2022-04-18 21:18:37 -07:00
parent 612fad706f
commit c2cf1d6493
4 changed files with 108 additions and 93 deletions
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6
Makefile
View File

@@ -471,13 +471,15 @@ wasm: api build-obj-wasm-small
@cp src/api/schema.d.ts packages/bun-wasm/schema.d.ts
@cp src/api/schema.js packages/bun-wasm/schema.js
@cd packages/bun-wasm && $(NPM_CLIENT) run tsc -- -p .
@esbuild --sourcemap=external --external:fs --define:process.env.NODE_ENV="production" --outdir=packages/bun-wasm --target=esnext --bundle packages/bun-wasm/index.ts --format=esm --minify > /dev/null
@esbuild --sourcemap=external --external:fs --define:process.env.NODE_ENV='"production"' --outdir=packages/bun-wasm --target=esnext --bundle packages/bun-wasm/index.ts --format=esm --minify 2> /dev/null
@mv packages/bun-wasm/index.js packages/bun-wasm/index.mjs
@mv packages/bun-wasm/index.js.map packages/bun-wasm/index.mjs.map
@esbuild --sourcemap=external --external:fs --define:process.env.NODE_ENV="production" --outdir=packages/bun-wasm --target=esnext --bundle packages/bun-wasm/index.ts --format=cjs --minify --platform=node > /dev/null
@esbuild --sourcemap=external --external:fs --define:process.env.NODE_ENV='"production"' --outdir=packages/bun-wasm --target=esnext --bundle packages/bun-wasm/index.ts --format=cjs --minify --platform=node 2> /dev/null
@mv packages/bun-wasm/index.js packages/bun-wasm/index.cjs
@mv packages/bun-wasm/index.js.map packages/bun-wasm/index.cjs.map
@rm -rf packages/bun-wasm/*.tsbuildinfo
@wasm-opt -O4 --enable-mutable-globals packages/bun-wasm/bun.wasm -o /tmp/bun.wasm
@mv /tmp/bun.wasm packages/bun-wasm/bun.wasm
build-obj-safe:
$(ZIG) build obj -Drelease-safe

170
packages/bun-wasm/index.ts
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@@ -45,12 +45,6 @@ interface WebAssemblyModule {
scan(a: number): number;
}
const wasm_imports_sym: symbol | string =
//@ts-ignore
process.env.NODE_ENV === "development"
? "wasm_imports"
: Symbol("wasm_imports");
const ptr_converter = new ArrayBuffer(16);
const ptr_float = new BigUint64Array(ptr_converter);
const slice = new Uint32Array(ptr_converter);
@@ -85,28 +79,97 @@ const Wasi = {
var scratch: Uint8Array;
var scratch2: Uint8Array;
export class Bun {
static has_initialized = false;
const env = {
console_log(slice: number) {
//@ts-ignore
console.log(Bun._wasmPtrLenToString(slice));
},
console_error(slice: number) {
//@ts-ignore
console.error(Bun._wasmPtrLenToString(slice));
},
console_warn(slice: number) {
//@ts-ignore
console.warn(Bun._wasmPtrLenToString(slice));
},
console_info(slice: number) {
//@ts-ignore
console.info(Bun._wasmPtrLenToString(slice));
},
// @ts-ignore-line
static wasm_source: WebAssembly.WebAssemblyInstantiatedSource = null;
static get wasm_exports(): WebAssemblyModule {
__indirect_function_table: new WebAssembly.Table({
initial: 0,
element: "anyfunc",
}),
// @ts-ignore-line
__stack_pointer: new WebAssembly.Global({
mutable: true,
value: "i32",
}),
__multi3(one: number, two: number) {
return Math.imul(one | 0, two | 0);
},
fmod(one: number, two: number) {
return one % two;
},
memset(ptr: number, value: number, len: number) {
//@ts-ignore
Bun.memory_array.fill(value, ptr, ptr + len);
},
memcpy(ptr: number, value: number, len: number) {
//@ts-ignore
Bun.memory_array.copyWithin(ptr, value, value + len);
},
// These functions convert a to an unsigned long long, rounding toward zero. Negative values all become zero.
__fixunsdfti(a: number) {
return Math.floor(a);
},
// These functions return the remainder of the unsigned division of a and b.
__umodti3(a: number, b: number) {
return (a | 0) % (b | 0);
},
// These functions return the quotient of the unsigned division of a and b.
__udivti3(a: number, b: number) {
return (a | 0) / (b | 0);
},
// These functions return the result of shifting a left by b bits.
__ashlti3(a: number, b: number) {
return (a | 0) >> (b | 0);
},
/* Returns: convert a to a double, rounding toward even. */
__floatuntidf(a: number) {
const mod = a % 2;
if (mod === 0) {
return Math.ceil(a);
} else if (mod === 1) {
return Math.floor(a);
}
},
emscripten_notify_memory_growth() {},
};
export class Bun {
private static has_initialized = false;
// @ts-ignore-line
private static wasm_source: WebAssembly.WebAssemblyInstantiatedSource = null;
private static get wasm_exports(): WebAssemblyModule {
return Bun.wasm_source.instance.exports as any;
}
// @ts-ignore-line
static get memory(): WebAssembly.Memory {
private static get memory(): WebAssembly.Memory {
return Bun.wasm_source.instance.exports.memory as any;
}
static memory_array: Uint8Array;
private static memory_array: Uint8Array;
static _decoder: TextDecoder;
private static _decoder: TextDecoder;
static _wasmPtrToSlice(offset: number | bigint) {
private static _wasmPtrToSlice(offset: number | bigint) {
ptr_float[0] = typeof offset === "number" ? BigInt(offset) : offset;
return new Uint8Array(Bun.memory.buffer, slice[0], slice[1]);
}
static _wasmPtrLenToString(slice: number) {
private static _wasmPtrLenToString(slice: number) {
if (!Bun._decoder) {
Bun._decoder = new TextDecoder("utf8");
}
@@ -115,71 +178,6 @@ export class Bun {
return Bun._decoder.decode(region);
}
// We don't want people to be calling these manually
// @ts-ignore-line
static [wasm_imports_sym as symbol] = {
console_log(slice: number) {
console.log(Bun._wasmPtrLenToString(slice));
},
console_error(slice: number) {
console.error(Bun._wasmPtrLenToString(slice));
},
console_warn(slice: number) {
console.warn(Bun._wasmPtrLenToString(slice));
},
console_info(slice: number) {
console.info(Bun._wasmPtrLenToString(slice));
},
// @ts-ignore-line
__indirect_function_table: new WebAssembly.Table({
initial: 0,
element: "anyfunc",
}),
// @ts-ignore-line
__stack_pointer: new WebAssembly.Global({
mutable: true,
value: "i32",
}),
__multi3(one: number, two: number) {
return Math.imul(one | 0, two | 0);
},
fmod(one: number, two: number) {
return one % two;
},
memset(ptr: number, value: number, len: number) {
Bun.memory_array.fill(value, ptr, ptr + len);
},
memcpy(ptr: number, value: number, len: number) {
Bun.memory_array.copyWithin(ptr, value, value + len);
},
// These functions convert a to an unsigned long long, rounding toward zero. Negative values all become zero.
__fixunsdfti(a: number) {
return Math.floor(a);
},
// These functions return the remainder of the unsigned division of a and b.
__umodti3(a: number, b: number) {
return (a | 0) % (b | 0);
},
// These functions return the quotient of the unsigned division of a and b.
__udivti3(a: number, b: number) {
return (a | 0) / (b | 0);
},
// These functions return the result of shifting a left by b bits.
__ashlti3(a: number, b: number) {
return (a | 0) >> (b | 0);
},
/* Returns: convert a to a double, rounding toward even. */
__floatuntidf(a: number) {
const mod = a % 2;
if (mod === 0) {
return Math.ceil(a);
} else if (mod === 1) {
return Math.floor(a);
}
},
emscripten_notify_memory_growth() {},
};
static async init(url, fetch = globalThis.fetch) {
// globalThis.sucraseTransform = sucraseTransform;
scratch = new Uint8Array(8096);
@@ -191,14 +189,14 @@ export class Bun {
if (globalThis?.WebAssembly?.instantiateStreaming) {
Bun.wasm_source = await globalThis.WebAssembly.instantiateStreaming(
fetch(url),
{ env: Bun[wasm_imports_sym], wasi_snapshot_preview1: Wasi }
{ env: env, wasi_snapshot_preview1: Wasi }
);
} else if (typeof window !== "undefined") {
const resp = await fetch(url);
Bun.wasm_source = await globalThis.WebAssembly.instantiate(
await resp.arrayBuffer(),
{
env: Bun[wasm_imports_sym],
env: env,
wasi_snapshot_preview1: Wasi,
}
);
@@ -210,7 +208,7 @@ export class Bun {
Bun.wasm_source = await globalThis.WebAssembly.instantiate(
fs.readFileSync(url),
{
env: Bun[wasm_imports_sym],
env: env,
wasi_snapshot_preview1: Wasi,
}
);
@@ -344,3 +342,9 @@ if ("window" in globalThis && !("Bun" in globalThis)) {
// @ts-ignore-line
globalThis.Bun = Bun;
}
//@ts-ignore
if (process.env.NODE_ENV === "development") {
//@ts-ignore
Bun.env = env;
}

24
packages/bun-wasm/test/node.mjs
View File

@@ -1,17 +1,25 @@
import * as Bun from "../index.mjs";
import process from "process";
await Bun.init(new URL("../bun.wasm", import.meta.url));
const hey = Bun.transformSync(
`
const buf =
(process.argv.length > 2 ? process.argv.at(-1) : "") ||
new TextEncoder().encode(`
export function hi() {
return true;
return <div>Hey</div>;
}
`,
"hi.js",
"js"
);
`);
const result = Bun.transformSync(buf, "hi.jsx", "jsx");
if (result.errors?.length) {
console.log(JSON.stringify(result.errors, null, 2));
throw new Error("Failed");
}
console.log(JSON.stringify(hey, null, 2));
if (!result.files.length) {
throw new Error("unexpectedly empty");
}
process.stdout.write(result.files[0].data);

1
src/main_wasm.zig
View File

@@ -232,6 +232,7 @@ export fn transform(opts_array: u64) u64 {
}, &log, &code, define, allocator) catch unreachable;
parser.options.jsx.parse = loader.isJSX();
parser.options.ts = loader.isTypeScript();
parser.options.tree_shaking = false;
parser.options.features.top_level_await = true;
const result = parser.parse() catch unreachable;
if (result.ok) {