q/src/types/Is.go
Eduard Urbach 714a722aaa
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Added types package
2025-06-20 16:16:48 +02:00

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954 B
Go

package types
// Is returns true if the encountered type `a` can be converted into the expected type `b`.
func Is(a Type, b Type) bool {
if a == b || b == Any || a == nil {
return true
}
aPointer, aIsPointer := a.(*Pointer)
bPointer, bIsPointer := b.(*Pointer)
if aIsPointer && bIsPointer && (bPointer.To == Any || aPointer.To == bPointer.To) {
return true
}
aArray, aIsArray := a.(*Array)
if aIsArray && bIsPointer && (bPointer.To == Any || aArray.Of == bPointer.To) {
return true
}
bArray, bIsArray := b.(*Array)
if aIsArray && bIsArray && (bArray.Of == Any || aArray.Of == bArray.Of) {
return true
}
if a == AnyInt {
switch b {
case Int64, Int32, Int16, Int8, UInt64, UInt32, UInt16, UInt8, AnyInt:
return true
default:
return false
}
}
if b == AnyInt {
switch a {
case Int64, Int32, Int16, Int8, UInt64, UInt32, UInt16, UInt8, AnyInt:
return true
default:
return false
}
}
return false
}