go-playground / validator / 20326963791

74%

v8: 100%

Pull #1508

github

fix: resolve panic when using cross-field validators with ValidateMap

When using validators like required_if, required_unless, excluded_if,
or excluded_unless with ValidateMap(), the validator panicked with
"Invalid field namespace" because getStructFieldOKInternal couldn't
navigate primitive types to find referenced fields.

This change makes getStructFieldOKInternal return found=false instead
of panicking when it encounters types it can't navigate. This allows
cross-field validators to handle the "not found" case gracefully using
their defaultNotFoundValue parameter.

Fixes #893

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