func eq()

in internal/backport/text/template/funcs.go [440:497]

• 57 lines of code
• 24 McCabe index (conditional complexity)

func eq(arg1 reflect.Value, arg2 ...reflect.Value) (bool, error) {
	arg1 = indirectInterface(arg1)
	if arg1 != zero {
		if t1 := arg1.Type(); !t1.Comparable() {
			return false, fmt.Errorf("uncomparable type %s: %v", t1, arg1)
		}
	}
	if len(arg2) == 0 {
		return false, errNoComparison
	}
	k1, _ := basicKind(arg1)
	for _, arg := range arg2 {
		arg = indirectInterface(arg)
		k2, _ := basicKind(arg)
		truth := false
		if k1 != k2 {
			// Special case: Can compare integer values regardless of type's sign.
			switch {
			case k1 == intKind && k2 == uintKind:
				truth = arg1.Int() >= 0 && uint64(arg1.Int()) == arg.Uint()
			case k1 == uintKind && k2 == intKind:
				truth = arg.Int() >= 0 && arg1.Uint() == uint64(arg.Int())
			default:
				if arg1 != zero && arg != zero {
					return false, errBadComparison
				}
			}
		} else {
			switch k1 {
			case boolKind:
				truth = arg1.Bool() == arg.Bool()
			case complexKind:
				truth = arg1.Complex() == arg.Complex()
			case floatKind:
				truth = arg1.Float() == arg.Float()
			case intKind:
				truth = arg1.Int() == arg.Int()
			case stringKind:
				truth = arg1.String() == arg.String()
			case uintKind:
				truth = arg1.Uint() == arg.Uint()
			default:
				if arg == zero || arg1 == zero {
					truth = arg1 == arg
				} else {
					if t2 := arg.Type(); !t2.Comparable() {
						return false, fmt.Errorf("uncomparable type %s: %v", t2, arg)
					}
					truth = arg1.Interface() == arg.Interface()
				}
			}
		}
		if truth {
			return true, nil
		}
	}
	return false, nil
}