Wrap all methods with a specific code
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class Foo | |
def self.method_added(m) | |
t = Thread.current | |
unless t[:_hook] | |
t[:_hook] = true | |
begin | |
alias_method "_#{m}", m | |
class_eval %Q{def #{m}(*a, &b) | |
bak = Process.euid | |
begin | |
_#{m}(*a, &b) | |
ensure | |
Process.euid = bak | |
end | |
end} | |
ensure | |
t[:_hook] = false | |
end | |
end | |
end | |
def x(a) | |
puts a | |
end | |
end | |
Foo.new.x 1 |
oh. i'm jarodzz in ruby-talk.
thanks again for this nice solution.
got it.
the (*a, &b) is for block args.
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2 questions that I don't understand.
bak...
begin
_#{m} (_a)
ensure
end
end
do we really need &b?