Reflection Parsing Issue

[ndortega]

It appears the issue below is occurs when the extract_defaults() function is attempting to parse a function body instead of the function signature. This check will need to be improved to ensure we only work with signatures to avoid these issues.

---

This errors on a following line in PeaceFounderAdmin:

spec = Mapper.BRAID_CHAIN.ledger[index]

Here Mapper is imported from PeaceFounder and BRAID_CHAIN is a global mutable variable there initialized at runtime. The full error is as follows:

julia> using PeaceFounderAdmin
Precompiling PeaceFounderAdmin
        Info Given PeaceFounderAdmin was explicitly requested, output will be shown live 
ERROR: LoadError: UndefVarError: `BRAID_CHAIN` not defined
Stacktrace:
  [1] getargvalue
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:12 [inlined]
  [2] splitargs(args::Vector{GlobalRef}, func_name::Symbol)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:79
  [3] extract_defaults(info::Vector{Core.CodeInfo}, func_name::Symbol, param_names::Vector{Symbol}, kwarg_names::Vector{Symbol}; start::Int64)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:238
  [4] extract_defaults
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:225 [inlined]
  [5] splitdef(f::Function; start::Int64)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:274
  [6] splitdef
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:262 [inlined]
  [7] parse_func_params(route::String, func::Function)
    @ Oxygen.Core ~/.julia/packages/Oxygen/IQnes/src/core.jl:435
  [8] register(ctx::Oxygen.Core.AppContext.Context, httpmethod::String, route::String, func::Function)
    @ Oxygen.Core ~/.julia/packages/Oxygen/IQnes/src/core.jl:493
  [9] route(methods::Vector{String}, path::String, func::Function)
    @ PeaceFounderAdmin.AdminService ~/.julia/packages/Oxygen/IQnes/src/methods.jl:216
 [10] top-level scope
    @ ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/braidchain.jl:78
 [11] include(mod::Module, _path::String)
    @ Base ./Base.jl:495
 [12] include(x::String)
    @ PeaceFounderAdmin ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:1
 [13] top-level scope
    @ ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:22
 [14] include
    @ ./Base.jl:495 [inlined]
 [15] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base ./loading.jl:2222
 [16] top-level scope
    @ stdin:3
in expression starting at /Users/jerdmanis/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/braidchain.jl:78
in expression starting at /Users/jerdmanis/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:1
in expression starting at stdin:3
  ✗ PeaceFounderAdmin
  0 dependencies successfully precompiled in 4 seconds. 73 already precompiled.

ERROR: The following 1 direct dependency failed to precompile:

PeaceFounderAdmin [71cbcc19-d5de-42ce-8f1e-a2372a8e1f1c]

Failed to precompile PeaceFounderAdmin [71cbcc19-d5de-42ce-8f1e-a2372a8e1f1c] to "/Users/jerdmanis/.julia/compiled/v1.10/PeaceFounderAdmin/jl_3yKc5Z".
ERROR: LoadError: UndefVarError: `BRAID_CHAIN` not defined
Stacktrace:
  [1] getargvalue
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:12 [inlined]
  [2] splitargs(args::Vector{GlobalRef}, func_name::Symbol)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:79
  [3] extract_defaults(info::Vector{Core.CodeInfo}, func_name::Symbol, param_names::Vector{Symbol}, kwarg_names::Vector{Symbol}; start::Int64)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:238
  [4] extract_defaults
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:225 [inlined]
  [5] splitdef(f::Function; start::Int64)
    @ Oxygen.Core.Reflection ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:274
  [6] splitdef
    @ ~/.julia/packages/Oxygen/IQnes/src/reflection.jl:262 [inlined]
  [7] parse_func_params(route::String, func::Function)
    @ Oxygen.Core ~/.julia/packages/Oxygen/IQnes/src/core.jl:435
  [8] register(ctx::Oxygen.Core.AppContext.Context, httpmethod::String, route::String, func::Function)
    @ Oxygen.Core ~/.julia/packages/Oxygen/IQnes/src/core.jl:493
  [9] route(methods::Vector{String}, path::String, func::Function)
    @ PeaceFounderAdmin.AdminService ~/.julia/packages/Oxygen/IQnes/src/methods.jl:216
 [10] top-level scope
    @ ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/braidchain.jl:78
 [11] include(mod::Module, _path::String)
    @ Base ./Base.jl:495
 [12] include(x::String)
    @ PeaceFounderAdmin ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:1
 [13] top-level scope
    @ ~/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:22
 [14] include
    @ ./Base.jl:495 [inlined]
 [15] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base ./loading.jl:2222
 [16] top-level scope
    @ stdin:3
in expression starting at /Users/jerdmanis/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/braidchain.jl:78
in expression starting at /Users/jerdmanis/BtSync/PeaceFounder/Github/PeaceFounderAdmin/src/PeaceFounderAdmin.jl:1
in expression starting at stdin:
Stacktrace:
  [1] pkgerror(msg::String)
    @ Pkg.Types ~/.julia/juliaup/julia-1.10.2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/Types.jl:70
  [2] precompile(ctx::Pkg.Types.Context, pkgs::Vector{…}; internal_call::Bool, strict::Bool, warn_loaded::Bool, already_instantiated::Bool, timing::Bool, _from_loading::Bool, kwargs::@Kwargs{…})
    @ Pkg.API ~/.julia/juliaup/julia-1.10.2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:1659
  [3] precompile(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::@Kwargs{_from_loading::Bool})
    @ Pkg.API ~/.julia/juliaup/julia-1.10.2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:159
  [4] precompile
    @ ~/.julia/juliaup/julia-1.10.2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:147 [inlined]
  [5] #precompile#114
    @ ~/.julia/juliaup/julia-1.10.2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:146 [inlined]
  [6] #invokelatest#2
    @ ./essentials.jl:894 [inlined]
  [7] invokelatest
    @ ./essentials.jl:889 [inlined]
  [8] _require(pkg::Base.PkgId, env::String)
    @ Base ./loading.jl:1963
  [9] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1812
 [10] #invoke_in_world#3
    @ ./essentials.jl:926 [inlined]
 [11] invoke_in_world
    @ ./essentials.jl:923 [inlined]
 [12] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1803
 [13] macro expansion
    @ ./loading.jl:1790 [inlined]
 [14] macro expansion
    @ ./lock.jl:267 [inlined]
 [15] __require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1753
 [16] #invoke_in_world#3
    @ ./essentials.jl:926 [inlined]
 [17] invoke_in_world
    @ ./essentials.jl:923 [inlined]
 [18] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1746
Some type information was truncated. Use `show(err)` to see complete types.

Originally posted by @JanisErdmanis in #190 (comment)