Parser warning for using EllipsisNotation: (..) as …: “parentheses are not required here”

[Socob]

Running the following file (which intentionally has invalid syntax at the end to trigger the syntax warning, which doesn’t seem to appear otherwise?):

using EllipsisNotation: .. as …

(

gives a warning on the line using EllipsisNotation: .. as … (in addition to the syntax error):

ERROR: LoadError: ParseError:
# Warning @ ~/tmp.jl:1:25
using EllipsisNotation: (..) as …
#                       └──┘ ── parentheses are not required here
# Error @ ~/tmp.jl:3:3

(
#
└ ── Expected `)`
Stacktrace:
 [1] top-level scope
   @ ~/tmp/tmp.jl:3
in expression starting at ~/tmp.jl:3

However, the parentheses do seem to be required, as evidenced by what happens when omitting them:

using EllipsisNotation: .. as …

Resulting error:

ERROR: LoadError: ParseError:
# Warning @ ~/tmp.jl:1:27
using EllipsisNotation: .. as …
#                         ╙ ── space between dots in import path
# Error @ ~/tmp.jl:2:2
using EllipsisNotation: .. as …

#└ ── premature end of input
Stacktrace:
 [1] top-level scope
   @ ~/tmp/tmp.jl:2
in expression starting at ~/tmp.jl:2

---

1. The output of versioninfo():

Julia Version 1.10.3
Commit 0b4590a5507 (2024-04-30 10:59 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 16 × AMD Ryzen 7 4800H with Radeon Graphics
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-15.0.7 (ORCJIT, znver2)
Threads: 1 default, 0 interactive, 1 GC (on 16 virtual cores)

2. How you installed Julia: juliaup
3. A minimal working example (MWE), also known as a minimum reproducible example: see above

[ericphanson]

Xref JuliaLang/JuliaSyntax.jl#350