meriyah crashes when parsing specific js

[xuld]

var input = require("fs").readFileSync("input.js", "utf8")

require("meriyah").parse(input, {jsx: true, next: true, globalReturn: true, module: true, ranges: true,  specDeviation: true,})

(input.js is uploaded as attachment)

Output:

<--- Last few GCs --->
lo[88772:00000275497AF5E0]    77833 ms: Mark-sweep 2043.3 (2047.8) -> 2043.3 (2047.8) MB, 753.1 / 0.0 ms  (+ 0.0 ms in 4 steps since start of marking, biggest step 0.0 ms, walltime since start of marking 990 ms) (average mu = 0.275, current mu = 0.244) allo[88772:00000275497AF5E0]    78806 ms: Mark-sweep 2045.8 (2050.3) -> 2045.8 (2050.3) MB, 729.7 / 0.0 ms  (+ 0.0 ms in 4 steps since start of marking, biggest step 0.0 ms, walltime since start of marking 971 ms) (average mu = 0.263, current mu = 0.250) allo

<--- JS stacktrace --->

==== JS stack trace =========================================

    0: ExitFrame [pc: 00007FF77D41982D]
Security context: 0x02e7579ea1b9 <JSObject>
    1: parseClassElementList(aka parseClassElementList) [00000248E1AA9AC9] [D:\App\Node\node_modules\meriyah\dist\meriyah.umd.js:~5905] [pc=0000034C0520BE0A](this=0x03a9e7cc04d1 <undefined>,0x0120fc6c8d29 <Object map = 000000804BA2C009>,536882227,0x03a9e7cc04d1 <undefined>,536882227,2,0x03078ae7ffb9 <JSArray[0]>,0,0,265,9,46)
    2: parseClassBody(aka pars...

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

Writing Node.js report to file: report.20190826.095314.88772.0.001.json
Node.js report completed
 1: 00007FF77C86AA8F napi_wrap+122063
 2: 00007FF77C812746 public: bool __cdecl v8::base::CPU::has_sse(void)const __ptr64+34470
 3: 00007FF77C813406 public: bool __cdecl v8::base::CPU::has_sse(void)const __ptr64+37734
 4: 00007FF77CFFA3DE private: void __cdecl v8::Isolate::ReportExternalAllocationLimitReached(void) __ptr64+94
 5: 00007FF77CFE272A public: class v8::SharedArrayBuffer::Contents __cdecl v8::SharedArrayBuffer::Externalize(void) __ptr64+842
 6: 00007FF77CE73E3C public: static void __cdecl v8::internal::Heap::EphemeronKeyWriteBarrierFromCode(unsigned __int64,unsigned __int64,class v8::internal::Isolate * __ptr64)+1436
 7: 00007FF77CE7BD5F public: unsigned __int64 __cdecl v8::internal::Heap::OldGenerationSizeOfObjects(void) __ptr64+4879
 8: 00007FF77CE72003 public: bool __cdecl v8::internal::Heap::CollectGarbage(enum v8::internal::AllocationSpace,enum v8::internal::GarbageCollectionReason,enum v8::GCCallbackFlags) __ptr64+1235
 9: 00007FF77CE70894 public: void __cdecl v8::internal::Heap::AddRetainedMap(class v8::internal::Handle<class v8::internal::Map>) __ptr64+2292
10: 00007FF77CE8F375 public: class v8::internal::Handle<class v8::internal::HeapObject> __cdecl v8::internal::Factory::NewFillerObject(int,bool,enum v8::internal::AllocationType) __ptr64+53
11: 00007FF77CC455A3 public: class v8::internal::interpreter::JumpTableTargetOffsets::iterator & __ptr64 __cdecl v8::internal::interpreter::JumpTableTargetOffsets::iterator::operator=(class v8::internal::interpreter::JumpTableTargetOffsets::iterator && __ptr64) __ptr64+3427
12: 00007FF77D41982D public: virtual bool __cdecl v8::internal::SetupIsolateDelegate::SetupHeap(class v8::internal::Heap * __ptr64) __ptr64+614605
13: 0000034C0520BE0A

input.zip

[KFlash]

@xuld I'm not sure why this happened to you. But your input.zip code is a mix of both TS and JS, and also invalid for a JS parser :) Like this line: readonly typeScriptCompilers = new Map<string, TypeScriptCompiler>()

If you try this in the online REPL you will notice it doesn't crash at all, but it throws an error on line 9:29.

Update: In fact your entire file is TypeScript, and if I remove the TypeScript syntax it passes just fine

[xuld]

It is indeed TypeScript, but it should report syntax error, rather than crashing

(Node v12.6)

[KFlash]

@xuld It should have been fixed now.