swc explicitResourceManagement SuppressedError implement does not obey spec #8853
Description
Describe the bug
swc explicitResourceManagement SuppressedError implement does not obey spec.
swc runtime output is different from tsc runtime output.
Input code
import { deepStrictEqual } from 'node:assert'
import process from 'node:process'
let i = 0
let err: any
try {
await using _x1 = {
async [Symbol.asyncDispose]() {
throw [1, ++i]
}
}
await using _x2 = {
async [Symbol.asyncDispose]() {
throw [2, ++i]
}
}
await using _x3 = {
async [Symbol.asyncDispose]() {
throw [3, ++i]
}
}
await using _x4 = {
async [Symbol.asyncDispose]() {
throw [4, ++i]
}
}
throw [5, ++i]
} catch (e) {
err = e
}
if (process.env['REPRODUCE_SWC_BUG'] === undefined) {
deepStrictEqual(err.error, [1, 5])
deepStrictEqual(err.suppressed.error, [2, 4])
deepStrictEqual(err.suppressed.suppressed.error, [3, 3])
deepStrictEqual(err.suppressed.suppressed.suppressed.error, [4, 2])
deepStrictEqual(err.suppressed.suppressed.suppressed.suppressed, [5, 1])
} else {
deepStrictEqual(err.suppressed, [1, 5])
deepStrictEqual(err.error.suppressed, [2, 4])
deepStrictEqual(err.error.error.suppressed, [3, 3])
deepStrictEqual(err.error.error.error.suppressed, [4, 2])
deepStrictEqual(err.error.error.error.error, [5, 1])
}Config
{
"$schema": "https://json.schemastore.org/swcrc",
"jsc": {
"parser": {
"syntax": "typescript",
"explicitResourceManagement": true,
},
"target": "es2022",
"loose": false,
"minify": {
"compress": false,
"mangle": false
}
},
"module": {
"type": "es6"
},
"minify": false,
"isModule": true
}Playground link (or link to the minimal reproduction)
SWC Info output
No response
Expected behavior
- If
tscis correct, expect same output astsc.
Actual behavior
$ yarn tsc --build
...
$ yarn swc ./reproduce.mts -o reproduce/reproduce.swc.mjs
...
$ node ./reproduce/reproduce.tsc.mjs && REPRODUCE_SWC_BUG=1 node ./reproduce/reproduce.swc.mjs && echo OK
OKVersion
0.3.12
Additional context
@swc/cli: 0.3.12
@swc/core: 1.4.13
Downstream