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# frozen_string_literal: true
require_relative "eval"
module Byebug
module Helpers
#
# Utilities for variable subcommands
#
module VarHelper
include EvalHelper
def var_list(ary, binding = context.frame._binding)
vars = ary.sort.map do |name|
code = name.to_s
if code == "$SAFE"
code = <<~RUBY
original_stderr = $stderr
begin
$stderr = StringIO.new
#{code}
ensure
$stderr = original_stderr
end
RUBY
end
[name, safe_inspect(silent_eval(code, binding))]
end
puts prv(vars, "instance")
end
def var_global
globals = global_variables.reject do |v|
%i[$IGNORECASE $= $KCODE $-K $binding].include?(v)
end
var_list(globals)
end
def var_instance(str)
obj = warning_eval(str || "self")
var_list(obj.instance_variables, obj.instance_eval { binding })
end
def var_local
locals = context.frame.locals
cur_self = context.frame._self
locals[:self] = cur_self unless cur_self.to_s == "main"
puts prv(locals.keys.sort.map { |k| [k, locals[k]] }, "instance")
end
def var_args
args = context.frame.args
return if args == [[:rest]]
all_locals = context.frame.locals
arg_values = args.map { |arg| arg[1] }
locals = all_locals.select { |k, _| arg_values.include?(k) }
puts prv(locals.keys.sort.map { |k| [k, locals[k]] }, "instance")
end
end
end
end
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