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Add a note for CanIterateElements about unknown and null #166

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Add a note for CanIterateElements about unknown and null #166

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3 changes: 2 additions & 1 deletion cty/value_ops.go
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Expand Up @@ -1198,8 +1198,9 @@ func (val Value) ElementIterator() ElementIterator {
return elementIterator(val)
}

// CanIterateElements returns true if the receiver can support the
// CanIterateElements returns true if the receiver type can support the
// ElementIterator method (and by extension, ForEachElement) without panic.
// Note this method will panic if the receiver is Unknown or null.
func (val Value) CanIterateElements() bool {
return canElementIterator(val)
}
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