purego: validate callback inputs before touching reflect - #512
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NewCallback (unix and windows) called ty.NumIn() before checking the kind, so non-function input died inside reflect (or with a bare nil dereference) instead of the intended purego error. RegisterFunc called Value.Elem() before checking for a function pointer with the same effect. Validate first so misuse fails with actionable messages. Closes ebitengine#507
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@TotallyGamerJet PTAL |
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What issue is this addressing?
#507
What type of issue is this addressing?
bug
What this PR does | solves
NewCallback (unix and windows) called ty.NumIn() before checking the kind, so non-function input died inside reflect (or with a bare nil dereference) instead of the intended purego error. RegisterFunc called Value.Elem() before checking for a function pointer with the same effect. Validate first so misuse fails with actionable messages.
Closes #507