A small macro for wrapping an expression in a `try/catch` block.

trycatch.jl

"""
    @trycatch expr

Convenience macro which wraps an expression in a `try/catch` block.
If the expression throws an error, it will be printed with the 
`@error` macro.

# Examples
julia> @trycatch 1 + 1
2

julia> 1 + "dog"
ERROR: MethodError: no method matching +(::Int64, ::String)
Closest candidates are:
  +(::Any, ::Any, ::Any, ::Any...) at operators.jl:538
  +(::T, ::T) where T<:Union{Int128, Int16, Int32, Int64, Int8, UInt128, UInt16, UInt32, UInt64, UInt8} at int.jl:86
  +(::Union{Int16, Int32, Int64, Int8}, ::BigInt) at gmp.jl:531
  ...
Stacktrace:
 [1] top-level scope at REPL[28]:1

julia> @trycatch 1 + "dog"
┌ Error: MethodError(+, (1, "dog"), 0x0000000000006cbc)
└ @ Main REPL[13]:6

"""
macro trycatch(expr)
    quote
        try
            $expr
        catch err
            @error err
        end
    end
end