Deno panicked with wrong assignment statement

[tbontb-iaq]

Version: Deno 1.46.0

Run with RUST_BACKTRACE=full deno:

Deno 1.46.0
exit using ctrl+d, ctrl+c, or close()
REPL is running with all permissions allowed.
To specify permissions, run `deno repl` with allow flags.
> let a, b
undefined
> (true ? a : b) = 1

============================================================
Deno has panicked. This is a bug in Deno. Please report this
at https://github.com/denoland/deno/issues/new.
If you can reliably reproduce this panic, include the
reproduction steps and re-run with the RUST_BACKTRACE=1 env
var set and include the backtrace in your report.

Platform: linux x86_64
Version: 1.46.0
Args: ["deno"]

thread 'main' panicked at /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/swc_ecma_transforms_base-0.143.3/src/fixer.rs:197:64:
called `Result::unwrap()` on an `Err` value: Cond(CondExpr { span: 2..14, test: Lit(Bool(Bool { span: 2..6, value: true })), cons: Ident(Ident { span: 9..10, ctxt: #1, sym: "a", optional: false }), alt: Ident(Ident { span: 13..14, ctxt: #1, sym: "b", optional: false }) })
stack backtrace:
   0:     0x633747b10635 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd736fd5964392270
   1:     0x633747b42feb - core::fmt::write::hc6043626647b98ea
   2:     0x633747b0a69f - std::io::Write::write_fmt::h0d24b3e0473045db
   3:     0x633747b1040e - std::sys_common::backtrace::print::h45eb8174d25a1e76
   4:     0x633747b11e79 - std::panicking::default_hook::{{closure}}::haf3f0170eb4f3b53
   5:     0x633747b11c1a - std::panicking::default_hook::hb5d3b27aa9f6dcda
   6:     0x633748102790 - deno::setup_panic_hook::{{closure}}::ha5d650d81034dc22
   7:     0x633747b124eb - std::panicking::rust_panic_with_hook::h6b49d59f86ee588c
   8:     0x633747b12264 - std::panicking::begin_panic_handler::{{closure}}::hd4c2f7ed79b82b70
   9:     0x633747b10af9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2946d6d32d7ea1ad
  10:     0x633747b11f97 - rust_begin_unwind
  11:     0x633747b3ff33 - core::panicking::panic_fmt::ha02418e5cd774672
  12:     0x633747b40426 - core::result::unwrap_failed::h55f86ada3ace5ed2
  13:     0x633749a2375e - <swc_ecma_transforms_base::fixer::Fixer as swc_ecma_visit::generated::VisitMut>::visit_mut_expr::hcc77f68e81af403d
  14:     0x633749a19662 - <swc_ecma_ast::stmt::Stmt as swc_ecma_visit::generated::VisitMutWith<V>>::visit_mut_children_with::hdc34bd0734067587
  15:     0x633749a23c1d - <swc_ecma_transforms_base::fixer::Fixer as swc_ecma_visit::generated::VisitMut>::visit_mut_stmt::h01b24bef9ddb206d
  16:     0x633749a0edbc - swc_ecma_visit::generated::VisitMut::visit_mut_module_items::h1cf23faa73762a95
  17:     0x633749a23a70 - <swc_ecma_transforms_base::fixer::Fixer as swc_ecma_visit::generated::VisitMut>::visit_mut_module::h0cc424093d6247b5
  18:     0x63374992e550 - <swc_ecma_ast::module::Program as swc_ecma_visit::generated::FoldWith<V>>::fold_with::h29884bbc2394843e
  19:     0x63374994ea85 - deno_ast::transpiling::fold_program::hf8d3bd252687d7c9
  20:     0x63374994d4d6 - deno_ast::transpiling::transpile::h89acf1a6c34a6739
  21:     0x63374994cd42 - deno_ast::transpiling::<impl deno_ast::parsed_source::ParsedSource>::transpile::h4b73a76e4129ff82
  22:     0x633748088d4e - deno::tools::repl::session::ReplSession::evaluate_ts_expression::{{closure}}::h12c4507da174464a
  23:     0x633748086e4c - deno::tools::repl::session::ReplSession::evaluate_line_with_object_wrapping::{{closure}}::hc27a773cc8ec8552
  24:     0x6337480853e8 - deno::tools::repl::session::ReplSession::evaluate_line_and_get_output::{{closure}}::h68ba3c8d1690f6ac
  25:     0x63374808a48c - deno::tools::repl::run::{{closure}}::hf5317114789cb470
  26:     0x6337480e1cf2 - deno::spawn_subcommand::{{closure}}::h1f0b708a84de9fe7
  27:     0x633747b5b531 - <deno_unsync::tokio::task::MaskFutureAsSend<F> as core::future::future::Future>::poll::h92b84cc1b42449d4
  28:     0x633747d40734 - tokio::runtime::task::raw::poll::had8bbf83cff3cbce
  29:     0x6337481042b9 - deno::main::hfc1529a609826c3c
  30:     0x633747c0cccf - std::sys_common::backtrace::__rust_begin_short_backtrace::ha691cd64654fb0f4
  31:     0x633747c14cfa - std::rt::lang_start::{{closure}}::hbebf3fbed7d80092
  32:     0x633747afe69d - std::rt::lang_start_internal::hcee5ed89fc25829a
  33:     0x63374819a425 - main
  34:     0x7740d8c29d90 - __libc_start_call_main
                               at ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
  35:     0x7740d8c29e40 - __libc_start_main_impl
                               at ./csu/../csu/libc-start.c:392:3
  36:     0x633746471029 - _start
  37:                0x0 - <unknown>

Same code in node:

Welcome to Node.js v20.16.0.
Type ".help" for more information.
> let a, b
undefined
> (true ? a : b) = 1
(true ? a : b) = 1
^^^^^^^^^^^^^^

Uncaught SyntaxError: Invalid left-hand side in assignment

[littledivy]

Seems fixed. Better error with Deno 2.

[divy@divy deno]$ deno
Deno 2.0.0
exit using ctrl+d, ctrl+c, or close()
REPL is running with all permissions allowed.
To specify permissions, run `deno repl` with allow flags.
> let a, b
undefined
> (true ? a : b) = 1
error: The left-hand side of an assignment expression must be a variable or a property access. at file:///repl.tsx:1:1

  (true ? a : b) = 1
  ~~~~~~~~~~~~~~

The left-hand side of an assignment expression must be a variable or a property access. at file:///repl.tsx:1:1

  (true ? a : b) = 1
  ~~~~~~~~~~~~~~