`@. vec = vec +1` gives unhelpful error

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Description

julia> vec = [1, 2, 3]
3-element Vector{Int64}:
 1
 2
 3

julia> @. vec = vec + 1
3-element Vector{Int64}:
 2
 3
 4

julia> @. vec = vec +1
ERROR: LoadError: MethodError: no method matching var"@__dot__"(::LineNumberNode, ::Module, ::Expr, ::Int64)
Closest candidates are:
  var"@__dot__"(::LineNumberNode, ::Module, ::Any) at broadcast.jl:1276
in expression starting at REPL[11]:1

Contributor guide

Research direction

Investigate how the Julia parser handles the `@.` macro with a missing whitespace before `+1` and propose a better error message or syntax detection.

Tech stack

None

Domain

developer experience

Issue type

Bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

Active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

Mostly clear

Prerequisites

Julia

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

65