Internal error for missing brace

[oxinabox]

copy-pasting this reproduces -- you don't need to load the packages or define the variables

julia> open(joinpath(mkpath(joinpath(@__DIR__, "outputs", "branch")), filename)), "w") do fh
           JSON3.write(fh, TimerOutputs.todict(to))
       end
┌ Error: JuliaSyntax parser failed — falling back to flisp!
│   exception =
│    Internal error: length(args) == 3
│    Stacktrace:
│      [1] error(::String, ::String)
│        @ Base ./error.jl:44
│      [2] internal_error(strs::String)
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/utils.jl:23
│      [3] _internal_node_to_Expr(source::Base.JuliaSyntax.SourceFile, srcrange::UnitRange{…}, head::Base.JuliaSyntax.SyntaxHead, childranges::Vector{…}, childheads::Vector{…}, args::Vector{…})
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/expr.jl:399
│      [4] _to_expr(node::Base.JuliaSyntax.SyntaxNode)
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/expr.jl:497
│      [5] _to_expr(node::Base.JuliaSyntax.SyntaxNode) (repeats 2 times)
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/expr.jl:496
│      [6] Expr(node::Base.JuliaSyntax.SyntaxNode)
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/expr.jl:501
│      [7] core_parser_hook(code::String, filename::String, lineno::Int64, offset::Int64, options::Symbol)
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/hooks.jl:209
│      [8] invoke_in_world(::UInt64, ::Any, ::Any, ::Vararg{Any}; kwargs::@Kwargs{})
│        @ Base ./essentials.jl:898
│      [9] invoke_in_world(::UInt64, ::Any, ::Any, ::Vararg{Any})
│        @ Base ./essentials.jl:895
│     [10] (::Base.JuliaSyntax.var"#invoke_fixedworld#119"{…})(::String, ::Vararg{…}; kws::@Kwargs{})
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/hooks.jl:118
│     [11] (::Base.JuliaSyntax.var"#invoke_fixedworld#119"{…})(::String, ::Vararg{…})
│        @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/hooks.jl:117
│     [12] _parse_string(text::String, filename::String, lineno::Int64, index::Int64, options::Symbol)
│        @ Base.Meta ./meta.jl:200
│     [13] parseall(text::String; filename::String, lineno::Int64)
│        @ Base.Meta ./meta.jl:292 [inlined]
│     [14] include_string(mapexpr::typeof(REPL.softscope), mod::Module, code::String, filename::String)
│        @ Base ./loading.jl:1997
│     [15] invokelatest(::Any, ::Any, ::Vararg{Any}; kwargs::@Kwargs{})
│        @ Base ./essentials.jl:864
│     [16] invokelatest(::Any, ::Any, ::Vararg{Any})
│        @ Base ./essentials.jl:861
│     [17] inlineeval(m::Module, code::String, code_line::Int64, code_column::Int64, file::String; softscope::Bool)
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:233
│     [18] (::VSCodeServer.var"#66#70"{…})()
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:157
│     [19] withpath(f::VSCodeServer.var"#66#70"{…}, path::String)
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/repl.jl:249
│     [20] (::VSCodeServer.var"#65#69"{…})()
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:155
│     [21] hideprompt(f::VSCodeServer.var"#65#69"{…})
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/repl.jl:38
│     [22] (::VSCodeServer.var"#64#68"{…})()
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:126
│     [23] with_logstate(f::Function, logstate::Any)
│        @ Base.CoreLogging ./logging.jl:515
│     [24] with_logger(f::VSCodeServer.var"#64#68"{…}, logger::VSCodeServer.VSCodeLogger)
│        @ Base.CoreLogging ./logging.jl:627 [inlined]
│     [25] (::VSCodeServer.var"#63#67"{VSCodeServer.ReplRunCodeRequestParams})()
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:225
│     [26] invokelatest(::Any; kwargs::@Kwargs{})
│        @ Base ./essentials.jl:864 [inlined]
│     [27] invokelatest(::Any)
│        @ Base ./essentials.jl:861
│     [28] (::VSCodeServer.var"#61#62")()
│        @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.47.2/scripts/packages/VSCodeServer/src/eval.jl:34
│    Some type information was truncated. Use `show(err)` to see complete types.
│   offset = 0
│   code = "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nopen(joinpath(mkpath(joinpath(@__DIR__, \"outputs\", \"branch\")), filename)), \"w\") do fh\n    JSON3.write(fh, TimerOutputs.todict(to))\nend\n"
└ @ Base.JuliaSyntax /build/julia/base/JuliaSyntax/src/hooks.jl:258
ERROR: syntax: extra token ")" after end of expression
Stacktrace:
 [1] top-level scope
   @ ~/JuliaEnvs/DAECompiler.jl/benchmarks/benchmark.jl:64

[c42f]

Great find! Thanks ❤️

[c42f]

Looks to be a bug specific to core_parser_hook, perhaps, because parsestmt seems to handle this ok.

[c42f]

MWE:

JuliaSyntax.core_parser_hook("""y do""", "foo.jl", 0, :all)