31 lines
646 B
Go
31 lines
646 B
Go
package ast
|
|
|
|
// IsUnknown reports whether a variable is unknown or contains any value
|
|
// that is unknown. This will recurse into lists and maps and so on.
|
|
func IsUnknown(v Variable) bool {
|
|
// If it is unknown itself, return true
|
|
if v.Type == TypeUnknown {
|
|
return true
|
|
}
|
|
|
|
// If it is a container type, check the values
|
|
switch v.Type {
|
|
case TypeList:
|
|
for _, el := range v.Value.([]Variable) {
|
|
if IsUnknown(el) {
|
|
return true
|
|
}
|
|
}
|
|
case TypeMap:
|
|
for _, el := range v.Value.(map[string]Variable) {
|
|
if IsUnknown(el) {
|
|
return true
|
|
}
|
|
}
|
|
default:
|
|
}
|
|
|
|
// Not a container type or survive the above checks
|
|
return false
|
|
}
|