MakeScalar constructs a new instance of a scalar type (i.e. not array or tuple types) using the provided fields.
(family Family, o oid.Oid, precision, width int32, locale string)
| 821 | // MakeScalar constructs a new instance of a scalar type (i.e. not array or |
| 822 | // tuple types) using the provided fields. |
| 823 | func MakeScalar(family Family, o oid.Oid, precision, width int32, locale string) *T { |
| 824 | t := OidToType[o] |
| 825 | if family != t.Family() { |
| 826 | if family != CollatedStringFamily || StringFamily != t.Family() { |
| 827 | panic(errors.AssertionFailedf("oid %d does not match %s", o, family)) |
| 828 | } |
| 829 | } |
| 830 | if family == ArrayFamily || family == TupleFamily { |
| 831 | panic(errors.AssertionFailedf("cannot make non-scalar type %s", family)) |
| 832 | } |
| 833 | if family != CollatedStringFamily && locale != "" { |
| 834 | panic(errors.AssertionFailedf("non-collation type cannot have locale %s", locale)) |
| 835 | } |
| 836 | |
| 837 | timePrecisionIsSet := false |
| 838 | var intervalDurationField *IntervalDurationField |
| 839 | var geoMetadata *GeoMetadata |
| 840 | switch family { |
| 841 | case IntervalFamily: |
| 842 | intervalDurationField = &IntervalDurationField{} |
| 843 | if precision < 0 || precision > 6 { |
| 844 | panic(errors.AssertionFailedf("precision must be between 0 and 6 inclusive")) |
| 845 | } |
| 846 | timePrecisionIsSet = true |
| 847 | case TimestampFamily, TimestampTZFamily, TimeFamily, TimeTZFamily: |
| 848 | if precision < 0 || precision > 6 { |
| 849 | panic(errors.AssertionFailedf("precision must be between 0 and 6 inclusive")) |
| 850 | } |
| 851 | timePrecisionIsSet = true |
| 852 | case DecimalFamily: |
| 853 | if precision < 0 { |
| 854 | panic(errors.AssertionFailedf("negative precision is not allowed")) |
| 855 | } |
| 856 | default: |
| 857 | if precision != 0 { |
| 858 | panic(errors.AssertionFailedf("type %s cannot have precision", family)) |
| 859 | } |
| 860 | } |
| 861 | |
| 862 | if width < 0 { |
| 863 | panic(errors.AssertionFailedf("negative width is not allowed")) |
| 864 | } |
| 865 | switch family { |
| 866 | case IntFamily: |
| 867 | switch width { |
| 868 | case 16, 32, 64: |
| 869 | default: |
| 870 | panic(errors.AssertionFailedf("invalid width %d for IntFamily type", width)) |
| 871 | } |
| 872 | case FloatFamily: |
| 873 | switch width { |
| 874 | case 32, 64: |
| 875 | default: |
| 876 | panic(errors.AssertionFailedf("invalid width %d for FloatFamily type", width)) |
| 877 | } |
| 878 | case DecimalFamily: |
| 879 | if width > precision { |
| 880 | panic(errors.AssertionFailedf( |