• Håvard Haugen's avatar
    testing/quick: terminate for arbitrary recursive types · 74245b03
    Håvard Haugen authored
    Recursive types R containing slices of R's did not terminate despite the
    effort in CL 10821.
    
    For recursive types there was a competition between slice expansion by a
    factor 'complexSize', and termination with probability '1/complexSize'
    which lead to stack overflow as soon as a recursive struct had slices
    pointing to its own type.
    
    Fix this by shrinking the size hint as a function of recursion depth.
    This has the dual effect of reducing the number of elements generated
    per slice and also increasing the probability for termination.
    
    Fixes #11148.
    
    Change-Id: Ib61155b4f2e2de3873d508d63a1f4be759426d67
    Reviewed-on: https://go-review.googlesource.com/13830Reviewed-by: 's avatarAdam Langley <agl@golang.org>
    74245b03
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