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"Property name_val[...] not found." when defining @generated function with unnamed arguments #125

@topolarity

Description

@topolarity
julia> JuliaLowering.include_string(Module(), raw"""
       @generated function foo(::Int)
           return :(nothing)
       end
       """)
ERROR: Property `name_val[98]` not found. Available attributes:
    kind = BindingId,
    var_id = 4,
    source = 97
Stacktrace:
  [1] error(s::String)
    @ Base ./error.jl:44
  [2] (::Base.JuliaLowering.var"#9#10"{Base.JuliaLowering.SyntaxTree{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}}, Symbol, Int64})()
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/syntax_graph.jl:241
  [3] get(default::Base.JuliaLowering.var"#9#10"{Base.JuliaLowering.SyntaxTree{}, Symbol, Int64}, h::Dict{Int64, String}, key::Int64)
    @ Base ./dict.jl:528
  [4] getproperty(ex::Base.JuliaLowering.SyntaxTree{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}}, name::Symbol)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/syntax_graph.jl:238
  [5] #expand_function_generator##0
    @ ~/repos/julia/JuliaLowering/src/ast.jl:243 [inlined]
  [6] (::Base.JuliaLowering.var"#expand_function_generator##0#expand_function_generator##1"{})(n::Base.JuliaLowering.SyntaxTree{…})
    @ Base.JuliaLowering ./none:0
  [7] iterate
    @ ./generator.jl:48 [inlined]
  [8] _append_nodeids!(graph::Base.JuliaLowering.SyntaxGraph{…}, ids::Vector{…}, vals::Base.Generator{…})
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/ast.jl:120
  [9] macro expansion
    @ ~/repos/julia/JuliaLowering/src/ast.jl:370 [inlined]
 [10] expand_function_generator(ctx::Base.JuliaLowering.DesugaringContext{…}, srcref::Base.JuliaLowering.SyntaxTree{…}, callex_srcref::Base.JuliaLowering.SyntaxTree{…}, func_name::Base.JuliaLowering.SyntaxTree{…}, func_name_str::String, body::Base.JuliaLowering.SyntaxTree{…}, arg_names::Base.JuliaLowering.SyntaxList{…}, typevar_names::Base.JuliaLowering.SyntaxList{…})
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/desugaring.jl:2534
 [11] expand_function_def(ctx::Base.JuliaLowering.DesugaringContext{…}, ex::Base.JuliaLowering.SyntaxTree{…}, docs::Nothing, rewrite_call::typeof(identity), rewrite_body::typeof(identity); doc_only::Bool)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/desugaring.jl:3139
 [12] expand_function_def(ctx::Base.JuliaLowering.DesugaringContext{…}, ex::Base.JuliaLowering.SyntaxTree{…}, docs::Nothing, rewrite_call::Function, rewrite_body::Function)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/desugaring.jl:2918
 [13] expand_forms_2(ctx::Base.JuliaLowering.DesugaringContext{…}, ex::Base.JuliaLowering.SyntaxTree{…}, docs::Nothing)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/desugaring.jl:4455
 [14] expand_forms_2
    @ ~/repos/julia/JuliaLowering/src/desugaring.jl:4372 [inlined]
 [15] expand_forms_2(ctx::Base.JuliaLowering.MacroExpansionContext{…}, ex::Base.JuliaLowering.SyntaxTree{…})
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/desugaring.jl:4626
 [16] lower_step(iter::Base.JuliaLowering.LoweringIterator{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}}, push_mod::Nothing)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/eval.jl:96
 [17] lower_step(iter::Base.JuliaLowering.LoweringIterator{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}})
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/eval.jl:48
 [18] lower_step(iter::Base.JuliaLowering.LoweringIterator{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}}, push_mod::Nothing)
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/eval.jl:79
 [19] _eval(mod::Module, iter::Base.JuliaLowering.LoweringIterator{Base.JuliaLowering.SyntaxGraph{Dict{Symbol, Any}}})
    @ Base.JuliaLowering ~/repos/julia/JuliaLowering/src/eval.jl:476

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