35 lines
669 B
Crystal
35 lines
669 B
Crystal
module Sodium::Wipe
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annotation Var
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end
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@closed = false
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def close
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return if @closed
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wipe
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@closed = true
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end
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protected def wipe
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return if @closed
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{% for ivar in @type.instance_vars %}
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{% if ann = ivar.annotation(Wipe::Var) %}
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if var = @{{ ivar.id }}
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case var
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when StaticArray
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#puts "wiping {{ivar}}"
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# Sodium.memzero var.to_slice
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# @{{ ivar.id }} = var
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else
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Sodium.memzero var.to_slice
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end
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end
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{% end %}
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{% end %}
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end
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def finalize
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wipe # Don't call close. May be overridden with calls unsafe within finalize.
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end
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end
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