fail to execute ts file with complex if statement with many nested braces

Version

v23.9.0

Platform

Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:16 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T6000

Subsystem

No response

What steps will reproduce the bug?

the following code can be executed in .js, but fails to be run as .ts:

var data = ""
if(!(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((data === "AED") || (data === "AFN")) || (data === "ALL")) || (data === "AMD")) || (data === "ANG")) || (data === "AOA")) || (data === "ARS")) || (data === "AUD")) || (data === "AWG")) || (data === "AZN")) || (data === "BAM")) || (data === "BBD")) || (data === "BDT")) || (data === "BGN")) || (data === "BHD")) || (data === "BIF")) || (data === "BMD")) || (data === "BND")) || (data === "BOB")) || (data === "BOV")) || (data === "BRL")) || (data === "BSD")) || (data === "BTN")) || (data === "BWP")) || (data === "BYN")) || (data === "BZD")) || (data === "CAD")) || (data === "CDF")) || (data === "CHE")) || (data === "CHF")) || (data === "CHW")) || (data === "CLF")) || (data === "CLP")) || (data === "CNY")) || (data === "COP")) || (data === "COU")) || (data === "CRC")) || (data === "CUC")) || (data === "CUP")) || (data === "CVE")) || (data === "CZK")) || (data === "DJF")) || (data === "DKK")) || (data === "DOP")) || (data === "DZD")) || (data === "EGP")) || (data === "ERN")) || (data === "ETB")) || (data === "EUR")) || (data === "FJD")) || (data === "FKP")) || (data === "GBP")) || (data === "GEL")) || (data === "GHS")) || (data === "GIP")) || (data === "GMD")) || (data === "GNF")) || (data === "GTQ")) || (data === "GYD")) || (data === "HKD")) || (data === "HNL")) || (data === "HRK")) || (data === "HTG")) || (data === "HUF")) || (data === "IDR")) || (data === "ILS")) || (data === "INR")) || (data === "IQD")) || (data === "IRR")) || (data === "ISK")) || (data === "JMD")) || (data === "JOD")) || (data === "JPY")) || (data === "KES")) || (data === "KGS")) || (data === "KHR")) || (data === "KMF")) || (data === "KPW")) || (data === "KRW")) || (data === "KWD")) || (data === "KYD")) || (data === "KZT")) || (data === "LAK")) || (data === "LBP")) || (data === "LKR")) || (data === "LRD")) || (data === "LSL")) || (data === "LYD")) || (data === "MAD")) || (data === "MDL")) || (data === "MGA")) || (data === "MKD")) || (data === "MMK")) || (data === "MNT")) || (data === "MOP")) || (data === "MRU")) || (data === "MUR")) || (data === "MVR")) || (data === "MWK")) || (data === "MXN")) || (data === "MXV")) || (data === "MYR")) || (data === "MZN")) || (data === "NAD")) || (data === "NGN")) || (data === "NIO")) || (data === "NOK")) || (data === "NPR")) || (data === "NZD")) || (data === "OMR")) || (data === "PAB")) || (data === "PEN")) || (data === "PGK")) || (data === "PHP")) || (data === "PKR")) || (data === "PLN")) || (data === "PYG")) || (data === "QAR")) || (data === "RON")) || (data === "RSD")) || (data === "RUB")) || (data === "RWF")) || (data === "SAR")) || (data === "SBD")) || (data === "SCR")) || (data === "SDG")) || (data === "SEK")) || (data === "SGD")) || (data === "SHP")) || (data === "SLL")) || (data === "SOS")) || (data === "SRD")) || (data === "SSP")) || (data === "STN")) || (data === "SVC")) || (data === "SYP")) || (data === "SZL")) || (data === "THB")) || (data === "TJS")) || (data === "TMT")) || (data === "TND")) || (data === "TOP")) || (data === "TRY")) || (data === "TTD")) || (data === "TWD")) || (data === "TZS")) || (data === "UAH")) || (data === "UGX")) || (data === "USD")) || (data === "USN")) || (data === "UYI")) || (data === "UYU")) || (data === "UYW")) || (data === "UZS")) || (data === "VES")) || (data === "VND")) || (data === "VUV")) || (data === "WST")) || (data === "XAF")) || (data === "XAG")) || (data === "XAU")) || (data === "XBA")) || (data === "XBB")) || (data === "XBC")) || (data === "XBD")) || (data === "XCD")) || (data === "XDR")) || (data === "XOF")) || (data === "XPD")) || (data === "XPF")) || (data === "XPT")) || (data === "XSU")) || (data === "XTS")) || (data === "XUA")) || (data === "XXX")) || (data === "YER")) || (data === "ZAR")) || (data === "ZMW")) || (data === "ZWL"))) {
  console.log("Hello");
}

How often does it reproduce? Is there a required condition?

it fails all the time.

What is the expected behavior? Why is that the expected behavior?

the code should execute without error

What do you see instead?

it errors out with the following error:

node:internal/assert:17
  throw new ERR_INTERNAL_ASSERTION(message);
        ^

Error [ERR_INTERNAL_ASSERTION]: memory access out of bounds
This is caused by either a bug in Node.js or incorrect usage of Node.js internals.
Please open an issue with this stack trace at https://github.com/nodejs/node/issues

    at Function.fail (node:internal/assert:17:9)
    at parseTypeScript (node:internal/modules/typescript:74:16)
    at processTypeScriptCode (node:internal/modules/typescript:129:42)
    at stripTypeScriptModuleTypes (node:internal/modules/typescript:196:22)
    at ModuleLoader.<anonymous> (node:internal/modules/esm/translators:547:16)
    at #translate (node:internal/modules/esm/loader:490:12)
    at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:537:27)
    at async ModuleJob._link (node:internal/modules/esm/module_job:116:19) {
  code: 'ERR_INTERNAL_ASSERTION'
}

Additional information

if you reduce the complexity of nested braces from 179 layers to 158 layers or less, it starts working. e.g.:

const data = "";
if(!((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((data === "AED") || (data === "AFN")) || (data === "ALL")) || (data === "AMD")) || (data === "ANG")) || (data === "AOA")) || (data === "ARS")) || (data === "AUD")) || (data === "AWG")) || (data === "AZN")) || (data === "BAM")) || (data === "BBD")) || (data === "BDT")) || (data === "BGN")) || (data === "BHD")) || (data === "BIF")) || (data === "BMD")) || (data === "BND")) || (data === "BOB")) || (data === "BOV")) || (data === "BRL")) || (data === "BSD")) || (data === "BTN")) || (data === "BWP")) || (data === "BYN")) || (data === "BZD")) || (data === "CAD")) || (data === "CDF")) || (data === "CHE")) || (data === "CHF")) || (data === "CHW")) || (data === "CLF")) || (data === "CLP")) || (data === "CNY")) || (data === "COP")) || (data === "COU")) || (data === "CRC")) || (data === "CUC")) || (data === "CUP")) || (data === "CVE")) || (data === "CZK")) || (data === "DJF")) || (data === "DKK")) || (data === "DOP")) || (data === "DZD")) || (data === "EGP")) || (data === "ERN")) || (data === "ETB")) || (data === "EUR")) || (data === "FJD")) || (data === "FKP")) || (data === "GBP")) || (data === "GEL")) || (data === "GHS")) || (data === "GIP")) || (data === "GMD")) || (data === "GNF")) || (data === "GTQ")) || (data === "GYD")) || (data === "HKD")) || (data === "HNL")) || (data === "HRK")) || (data === "HTG")) || (data === "HUF")) || (data === "IDR")) || (data === "ILS")) || (data === "INR")) || (data === "IQD")) || (data === "IRR")) || (data === "ISK")) || (data === "JMD")) || (data === "JOD")) || (data === "JPY")) || (data === "KES")) || (data === "KGS")) || (data === "KHR")) || (data === "KMF")) || (data === "KPW")) || (data === "KRW")) || (data === "KWD")) || (data === "KYD")) || (data === "KZT")) || (data === "LAK")) || (data === "LBP")) || (data === "LKR")) || (data === "LRD")) || (data === "LSL")) || (data === "LYD")) || (data === "MAD")) || (data === "MDL")) || (data === "MGA")) || (data === "MKD")) || (data === "MMK")) || (data === "MNT")) || (data === "MOP")) || (data === "MRU")) || (data === "MUR")) || (data === "MVR")) || (data === "MWK")) || (data === "MXN")) || (data === "MXV")) || (data === "MYR")) || (data === "MZN")) || (data === "NAD")) || (data === "NGN")) || (data === "NIO")) || (data === "NOK")) || (data === "NPR")) || (data === "NZD")) || (data === "OMR")) || (data === "PAB")) || (data === "PEN")) || (data === "PGK")) || (data === "PHP")) || (data === "PKR")) || (data === "PLN")) || (data === "PYG")) || (data === "QAR")) || (data === "RON")) || (data === "RSD")) || (data === "RUB")) || (data === "RWF")) || (data === "SAR")) || (data === "SBD")) || (data === "SCR")) || (data === "SDG")) || (data === "SEK")) || (data === "SGD")) || (data === "SHP")) || (data === "SLL")) || (data === "SOS")) || (data === "SRD")) || (data === "SSP")) || (data === "STN")) || (data === "SVC")) || (data === "SYP")) || (data === "SZL")) || (data === "THB")) || (data === "TJS")) || (data === "TMT")) || (data === "TND")) || (data === "TOP")) || (data === "TRY")) || (data === "TTD")) || (data === "TWD")) || (data === "TZS")) || (data === "UAH")) || (data === "UGX")) || (data === "USD")) || (data === "USN")) || (data === "UYI")) || (data === "UYU")) || (data === "UYW")) || (data === "UZS")) || (data === "VES")) || (data === "VND")) || (data === "VUV")) || (data === "WST"))) {
  console.log("Hello");
}

please note that these are generated code by Ajv standalone validator, not hand written. so it's not something we can easily simplify (e.g. using prettier) unless making changes to our existing development process.

thank you so much!

hi. the issue actually originates from @swc/wasm-typescript. I just opened an issue there. thx

const swc = require("@swc/wasm-typescript");

const source = `var data = ""
if(!(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((data === "AED") || (data === "AFN")) || (data === "ALL")) || (data === "AMD")) || (data === "ANG")) || (data === "AOA")) || (data === "ARS")) || (data === "AUD")) || (data === "AWG")) || (data === "AZN")) || (data === "BAM")) || (data === "BBD")) || (data === "BDT")) || (data === "BGN")) || (data === "BHD")) || (data === "BIF")) || (data === "BMD")) || (data === "BND")) || (data === "BOB")) || (data === "BOV")) || (data === "BRL")) || (data === "BSD")) || (data === "BTN")) || (data === "BWP")) || (data === "BYN")) || (data === "BZD")) || (data === "CAD")) || (data === "CDF")) || (data === "CHE")) || (data === "CHF")) || (data === "CHW")) || (data === "CLF")) || (data === "CLP")) || (data === "CNY")) || (data === "COP")) || (data === "COU")) || (data === "CRC")) || (data === "CUC")) || (data === "CUP")) || (data === "CVE")) || (data === "CZK")) || (data === "DJF")) || (data === "DKK")) || (data === "DOP")) || (data === "DZD")) || (data === "EGP")) || (data === "ERN")) || (data === "ETB")) || (data === "EUR")) || (data === "FJD")) || (data === "FKP")) || (data === "GBP")) || (data === "GEL")) || (data === "GHS")) || (data === "GIP")) || (data === "GMD")) || (data === "GNF")) || (data === "GTQ")) || (data === "GYD")) || (data === "HKD")) || (data === "HNL")) || (data === "HRK")) || (data === "HTG")) || (data === "HUF")) || (data === "IDR")) || (data === "ILS")) || (data === "INR")) || (data === "IQD")) || (data === "IRR")) || (data === "ISK")) || (data === "JMD")) || (data === "JOD")) || (data === "JPY")) || (data === "KES")) || (data === "KGS")) || (data === "KHR")) || (data === "KMF")) || (data === "KPW")) || (data === "KRW")) || (data === "KWD")) || (data === "KYD")) || (data === "KZT")) || (data === "LAK")) || (data === "LBP")) || (data === "LKR")) || (data === "LRD")) || (data === "LSL")) || (data === "LYD")) || (data === "MAD")) || (data === "MDL")) || (data === "MGA")) || (data === "MKD")) || (data === "MMK")) || (data === "MNT")) || (data === "MOP")) || (data === "MRU")) || (data === "MUR")) || (data === "MVR")) || (data === "MWK")) || (data === "MXN")) || (data === "MXV")) || (data === "MYR")) || (data === "MZN")) || (data === "NAD")) || (data === "NGN")) || (data === "NIO")) || (data === "NOK")) || (data === "NPR")) || (data === "NZD")) || (data === "OMR")) || (data === "PAB")) || (data === "PEN")) || (data === "PGK")) || (data === "PHP")) || (data === "PKR")) || (data === "PLN")) || (data === "PYG")) || (data === "QAR")) || (data === "RON")) || (data === "RSD")) || (data === "RUB")) || (data === "RWF")) || (data === "SAR")) || (data === "SBD")) || (data === "SCR")) || (data === "SDG")) || (data === "SEK")) || (data === "SGD")) || (data === "SHP")) || (data === "SLL")) || (data === "SOS")) || (data === "SRD")) || (data === "SSP")) || (data === "STN")) || (data === "SVC")) || (data === "SYP")) || (data === "SZL")) || (data === "THB")) || (data === "TJS")) || (data === "TMT")) || (data === "TND")) || (data === "TOP")) || (data === "TRY")) || (data === "TTD")) || (data === "TWD")) || (data === "TZS")) || (data === "UAH")) || (data === "UGX")) || (data === "USD")) || (data === "USN")) || (data === "UYI")) || (data === "UYU")) || (data === "UYW")) || (data === "UZS")) || (data === "VES")) || (data === "VND")) || (data === "VUV")) || (data === "WST")) || (data === "XAF")) || (data === "XAG")) || (data === "XAU")) || (data === "XBA")) || (data === "XBB")) || (data === "XBC")) || (data === "XBD")) || (data === "XCD")) || (data === "XDR")) || (data === "XOF")) || (data === "XPD")) || (data === "XPF")) || (data === "XPT")) || (data === "XSU")) || (data === "XTS")) || (data === "XUA")) || (data === "XXX")) || (data === "YER")) || (data === "ZAR")) || (data === "ZMW")) || (data === "ZWL"))) {
  console.log("Hello");
}`

try {
    swc.transformSync(source, { jsc: { parser: { syntax: "typescript" } } });
} catch (error) {
    console.error(error);
}

RuntimeError: memory access out of bounds
at wasm://wasm/00c91956:wasm-function[59]:0x3ea17
at wasm://wasm/00c91956:wasm-function[222]:0x1575f0
at wasm://wasm/00c91956:wasm-function[174]:0x1303fa
at wasm://wasm/00c91956:wasm-function[176]:0x13203a
at wasm://wasm/00c91956:wasm-function[872]:0x21d381
at wasm://wasm/00c91956:wasm-function[149]:0x11bbba
at wasm://wasm/00c91956:wasm-function[974]:0x228705
at wasm://wasm/00c91956:wasm-function[786]:0x1fb406
at wasm://wasm/00c91956:wasm-function[59]:0x3f088
at wasm://wasm/00c91956:wasm-function[222]:0x1575f0

Link to SWC issue: swc-project/swc#10207

Created a test in amaro nodejs/amaro#213 so whenever its fixed I'll release it

deps: update amaro to 0.5.2

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fail to execute ts file with complex if statement with many nested braces #57471

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Platform

Subsystem

What steps will reproduce the bug?

How often does it reproduce? Is there a required condition?

What is the expected behavior? Why is that the expected behavior?

What do you see instead?

Additional information

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fail to execute ts file with complex if statement with many nested braces #57471

Description

Version

Platform

Subsystem

What steps will reproduce the bug?

How often does it reproduce? Is there a required condition?

What is the expected behavior? Why is that the expected behavior?

What do you see instead?

Additional information

Activity

elvessilvavieira commented on Mar 16, 2025

robpalme commented on Mar 20, 2025

marco-ippolito commented on Mar 26, 2025

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