549 lines
14 KiB
Plaintext
549 lines
14 KiB
Plaintext
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package pgtype
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import (
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"database/sql/driver"
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"encoding/binary"
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"encoding/json"
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"fmt"
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"math"
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"strconv"
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"github.com/jackc/pgx/v5/internal/pgio"
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)
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type Int64Scanner interface {
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ScanInt64(Int8) error
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}
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type Int64Valuer interface {
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Int64Value() (Int8, error)
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}
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<% [2, 4, 8].each do |pg_byte_size| %>
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<% pg_bit_size = pg_byte_size * 8 %>
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type Int<%= pg_byte_size %> struct {
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Int<%= pg_bit_size %> int<%= pg_bit_size %>
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Valid bool
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}
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// ScanInt64 implements the Int64Scanner interface.
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func (dst *Int<%= pg_byte_size %>) ScanInt64(n Int8) error {
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if !n.Valid {
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*dst = Int<%= pg_byte_size %>{}
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return nil
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}
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if n.Int64 < math.MinInt<%= pg_bit_size %> {
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return fmt.Errorf("%d is less than minimum value for Int<%= pg_byte_size %>", n.Int64)
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}
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if n.Int64 > math.MaxInt<%= pg_bit_size %> {
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return fmt.Errorf("%d is greater than maximum value for Int<%= pg_byte_size %>", n.Int64)
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}
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*dst = Int<%= pg_byte_size %>{Int<%= pg_bit_size %>: int<%= pg_bit_size %>(n.Int64), Valid: true}
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return nil
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}
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func (n Int<%= pg_byte_size %>) Int64Value() (Int8, error) {
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return Int8{Int64: int64(n.Int<%= pg_bit_size %>), Valid: n.Valid}, nil
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}
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// Scan implements the database/sql Scanner interface.
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func (dst *Int<%= pg_byte_size %>) Scan(src any) error {
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if src == nil {
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*dst = Int<%= pg_byte_size %>{}
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return nil
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}
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var n int64
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switch src := src.(type) {
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case int64:
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n = src
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case string:
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var err error
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n, err = strconv.ParseInt(src, 10, <%= pg_bit_size %>)
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if err != nil {
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return err
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}
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case []byte:
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var err error
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n, err = strconv.ParseInt(string(src), 10, <%= pg_bit_size %>)
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if err != nil {
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return err
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}
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default:
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return fmt.Errorf("cannot scan %T", src)
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}
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if n < math.MinInt<%= pg_bit_size %> {
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return fmt.Errorf("%d is greater than maximum value for Int<%= pg_byte_size %>", n)
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}
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if n > math.MaxInt<%= pg_bit_size %> {
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return fmt.Errorf("%d is greater than maximum value for Int<%= pg_byte_size %>", n)
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}
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*dst = Int<%= pg_byte_size %>{Int<%= pg_bit_size %>: int<%= pg_bit_size %>(n), Valid: true}
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return nil
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}
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// Value implements the database/sql/driver Valuer interface.
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func (src Int<%= pg_byte_size %>) Value() (driver.Value, error) {
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if !src.Valid {
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return nil, nil
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}
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return int64(src.Int<%= pg_bit_size %>), nil
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}
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func (src Int<%= pg_byte_size %>) MarshalJSON() ([]byte, error) {
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if !src.Valid {
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return []byte("null"), nil
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}
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return []byte(strconv.FormatInt(int64(src.Int<%= pg_bit_size %>), 10)), nil
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}
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func (dst *Int<%= pg_byte_size %>) UnmarshalJSON(b []byte) error {
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var n *int<%= pg_bit_size %>
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err := json.Unmarshal(b, &n)
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if err != nil {
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return err
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}
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if n == nil {
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*dst = Int<%= pg_byte_size %>{}
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} else {
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*dst = Int<%= pg_byte_size %>{Int<%= pg_bit_size %>: *n, Valid: true}
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}
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return nil
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}
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type Int<%= pg_byte_size %>Codec struct{}
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func (Int<%= pg_byte_size %>Codec) FormatSupported(format int16) bool {
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return format == TextFormatCode || format == BinaryFormatCode
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}
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func (Int<%= pg_byte_size %>Codec) PreferredFormat() int16 {
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return BinaryFormatCode
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}
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func (Int<%= pg_byte_size %>Codec) PlanEncode(m *Map, oid uint32, format int16, value any) EncodePlan {
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switch format {
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case BinaryFormatCode:
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switch value.(type) {
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case int<%= pg_bit_size %>:
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return encodePlanInt<%= pg_byte_size %>CodecBinaryInt<%= pg_bit_size %>{}
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case Int64Valuer:
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return encodePlanInt<%= pg_byte_size %>CodecBinaryInt64Valuer{}
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}
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case TextFormatCode:
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switch value.(type) {
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case int<%= pg_bit_size %>:
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return encodePlanInt<%= pg_byte_size %>CodecTextInt<%= pg_bit_size %>{}
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case Int64Valuer:
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return encodePlanInt<%= pg_byte_size %>CodecTextInt64Valuer{}
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}
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}
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return nil
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}
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type encodePlanInt<%= pg_byte_size %>CodecBinaryInt<%= pg_bit_size %> struct{}
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func (encodePlanInt<%= pg_byte_size %>CodecBinaryInt<%= pg_bit_size %>) Encode(value any, buf []byte) (newBuf []byte, err error) {
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n := value.(int<%= pg_bit_size %>)
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return pgio.AppendInt<%= pg_bit_size %>(buf, int<%= pg_bit_size %>(n)), nil
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}
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type encodePlanInt<%= pg_byte_size %>CodecTextInt<%= pg_bit_size %> struct{}
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func (encodePlanInt<%= pg_byte_size %>CodecTextInt<%= pg_bit_size %>) Encode(value any, buf []byte) (newBuf []byte, err error) {
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n := value.(int<%= pg_bit_size %>)
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return append(buf, strconv.FormatInt(int64(n), 10)...), nil
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}
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type encodePlanInt<%= pg_byte_size %>CodecBinaryInt64Valuer struct{}
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func (encodePlanInt<%= pg_byte_size %>CodecBinaryInt64Valuer) Encode(value any, buf []byte) (newBuf []byte, err error) {
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n, err := value.(Int64Valuer).Int64Value()
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if err != nil {
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return nil, err
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}
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if !n.Valid {
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return nil, nil
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}
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if n.Int64 > math.MaxInt<%= pg_bit_size %> {
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return nil, fmt.Errorf("%d is greater than maximum value for int<%= pg_byte_size %>", n.Int64)
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}
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if n.Int64 < math.MinInt<%= pg_bit_size %> {
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return nil, fmt.Errorf("%d is less than minimum value for int<%= pg_byte_size %>", n.Int64)
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}
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return pgio.AppendInt<%= pg_bit_size %>(buf, int<%= pg_bit_size %>(n.Int64)), nil
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}
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type encodePlanInt<%= pg_byte_size %>CodecTextInt64Valuer struct{}
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func (encodePlanInt<%= pg_byte_size %>CodecTextInt64Valuer) Encode(value any, buf []byte) (newBuf []byte, err error) {
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n, err := value.(Int64Valuer).Int64Value()
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if err != nil {
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return nil, err
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}
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if !n.Valid {
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return nil, nil
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}
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if n.Int64 > math.MaxInt<%= pg_bit_size %> {
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return nil, fmt.Errorf("%d is greater than maximum value for int<%= pg_byte_size %>", n.Int64)
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}
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if n.Int64 < math.MinInt<%= pg_bit_size %> {
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return nil, fmt.Errorf("%d is less than minimum value for int<%= pg_byte_size %>", n.Int64)
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}
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return append(buf, strconv.FormatInt(n.Int64, 10)...), nil
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}
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func (Int<%= pg_byte_size %>Codec) PlanScan(m *Map, oid uint32, format int16, target any) ScanPlan {
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switch format {
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case BinaryFormatCode:
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switch target.(type) {
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case *int8:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt8{}
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case *int16:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt16{}
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case *int32:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt32{}
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case *int64:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt64{}
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case *int:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt{}
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case *uint8:
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return scanPlanBinaryInt<%= pg_byte_size %>ToUint8{}
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case *uint16:
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return scanPlanBinaryInt<%= pg_byte_size %>ToUint16{}
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case *uint32:
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return scanPlanBinaryInt<%= pg_byte_size %>ToUint32{}
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case *uint64:
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return scanPlanBinaryInt<%= pg_byte_size %>ToUint64{}
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case *uint:
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return scanPlanBinaryInt<%= pg_byte_size %>ToUint{}
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case Int64Scanner:
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return scanPlanBinaryInt<%= pg_byte_size %>ToInt64Scanner{}
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case TextScanner:
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return scanPlanBinaryInt<%= pg_byte_size %>ToTextScanner{}
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}
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case TextFormatCode:
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switch target.(type) {
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case *int8:
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return scanPlanTextAnyToInt8{}
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case *int16:
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return scanPlanTextAnyToInt16{}
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case *int32:
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return scanPlanTextAnyToInt32{}
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case *int64:
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return scanPlanTextAnyToInt64{}
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case *int:
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return scanPlanTextAnyToInt{}
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case *uint8:
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return scanPlanTextAnyToUint8{}
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case *uint16:
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return scanPlanTextAnyToUint16{}
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case *uint32:
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return scanPlanTextAnyToUint32{}
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case *uint64:
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return scanPlanTextAnyToUint64{}
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case *uint:
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return scanPlanTextAnyToUint{}
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case Int64Scanner:
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return scanPlanTextAnyToInt64Scanner{}
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}
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}
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return nil
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}
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func (c Int<%= pg_byte_size %>Codec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {
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if src == nil {
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return nil, nil
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}
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var n int64
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err := codecScan(c, m, oid, format, src, &n)
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if err != nil {
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return nil, err
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}
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return n, nil
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}
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func (c Int<%= pg_byte_size %>Codec) DecodeValue(m *Map, oid uint32, format int16, src []byte) (any, error) {
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if src == nil {
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return nil, nil
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}
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var n int<%= pg_bit_size %>
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err := codecScan(c, m, oid, format, src, &n)
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if err != nil {
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return nil, err
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}
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return n, nil
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}
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<%# PostgreSQL binary format integer to fixed size Go integers %>
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<% [8, 16, 32, 64].each do |dst_bit_size| %>
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type scanPlanBinaryInt<%= pg_byte_size %>ToInt<%= dst_bit_size %> struct{}
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func (scanPlanBinaryInt<%= pg_byte_size %>ToInt<%= dst_bit_size %>) Scan(src []byte, dst any) error {
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if src == nil {
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return fmt.Errorf("cannot scan NULL into %T", dst)
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}
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if len(src) != <%= pg_byte_size %> {
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return fmt.Errorf("invalid length for int<%= pg_byte_size %>: %v", len(src))
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}
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p, ok := (dst).(*int<%= dst_bit_size %>)
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if !ok {
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return ErrScanTargetTypeChanged
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}
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<% if dst_bit_size < pg_bit_size %>
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n := int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src))
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if n < math.MinInt<%= dst_bit_size %> {
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return fmt.Errorf("%d is less than minimum value for int<%= dst_bit_size %>", n)
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} else if n > math.MaxInt<%= dst_bit_size %> {
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return fmt.Errorf("%d is greater than maximum value for int<%= dst_bit_size %>", n)
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}
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*p = int<%= dst_bit_size %>(n)
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<% elsif dst_bit_size == pg_bit_size %>
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*p = int<%= dst_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src))
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<% else %>
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*p = int<%= dst_bit_size %>(int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src)))
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<% end %>
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return nil
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}
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type scanPlanBinaryInt<%= pg_byte_size %>ToUint<%= dst_bit_size %> struct{}
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func (scanPlanBinaryInt<%= pg_byte_size %>ToUint<%= dst_bit_size %>) Scan(src []byte, dst any) error {
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if src == nil {
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return fmt.Errorf("cannot scan NULL into %T", dst)
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}
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if len(src) != <%= pg_byte_size %> {
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return fmt.Errorf("invalid length for uint<%= pg_byte_size %>: %v", len(src))
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}
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p, ok := (dst).(*uint<%= dst_bit_size %>)
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if !ok {
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return ErrScanTargetTypeChanged
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}
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n := int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src))
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if n < 0 {
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return fmt.Errorf("%d is less than minimum value for uint<%= dst_bit_size %>", n)
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}
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<% if dst_bit_size < pg_bit_size %>
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if n > math.MaxUint<%= dst_bit_size %> {
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return fmt.Errorf("%d is greater than maximum value for uint<%= dst_bit_size %>", n)
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}
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<% end %>
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*p = uint<%= dst_bit_size %>(n)
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return nil
|
||
|
|
}
|
||
|
|
<% end %>
|
||
|
|
|
||
|
|
<%# PostgreSQL binary format integer to Go machine integers %>
|
||
|
|
type scanPlanBinaryInt<%= pg_byte_size %>ToInt struct{}
|
||
|
|
|
||
|
|
func (scanPlanBinaryInt<%= pg_byte_size %>ToInt) Scan(src []byte, dst any) error {
|
||
|
|
if src == nil {
|
||
|
|
return fmt.Errorf("cannot scan NULL into %T", dst)
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(src) != <%= pg_byte_size %> {
|
||
|
|
return fmt.Errorf("invalid length for int<%= pg_byte_size %>: %v", len(src))
|
||
|
|
}
|
||
|
|
|
||
|
|
p, ok := (dst).(*int)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
<% if 32 < pg_bit_size %>
|
||
|
|
n := int64(binary.BigEndian.Uint<%= pg_bit_size %>(src))
|
||
|
|
if n < math.MinInt {
|
||
|
|
return fmt.Errorf("%d is less than minimum value for int", n)
|
||
|
|
} else if n > math.MaxInt {
|
||
|
|
return fmt.Errorf("%d is greater than maximum value for int", n)
|
||
|
|
}
|
||
|
|
|
||
|
|
*p = int(n)
|
||
|
|
<% else %>
|
||
|
|
*p = int(int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src)))
|
||
|
|
<% end %>
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
type scanPlanBinaryInt<%= pg_byte_size %>ToUint struct{}
|
||
|
|
|
||
|
|
func (scanPlanBinaryInt<%= pg_byte_size %>ToUint) Scan(src []byte, dst any) error {
|
||
|
|
if src == nil {
|
||
|
|
return fmt.Errorf("cannot scan NULL into %T", dst)
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(src) != <%= pg_byte_size %> {
|
||
|
|
return fmt.Errorf("invalid length for uint<%= pg_byte_size %>: %v", len(src))
|
||
|
|
}
|
||
|
|
|
||
|
|
p, ok := (dst).(*uint)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
n := int64(int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src)))
|
||
|
|
if n < 0 {
|
||
|
|
return fmt.Errorf("%d is less than minimum value for uint", n)
|
||
|
|
}
|
||
|
|
<% if 32 < pg_bit_size %>
|
||
|
|
if uint64(n) > math.MaxUint {
|
||
|
|
return fmt.Errorf("%d is greater than maximum value for uint", n)
|
||
|
|
}
|
||
|
|
<% end %>
|
||
|
|
*p = uint(n)
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
<%# PostgreSQL binary format integer to Go Int64Scanner %>
|
||
|
|
type scanPlanBinaryInt<%= pg_byte_size %>ToInt64Scanner struct{}
|
||
|
|
|
||
|
|
func (scanPlanBinaryInt<%= pg_byte_size %>ToInt64Scanner) Scan(src []byte, dst any) error {
|
||
|
|
s, ok := (dst).(Int64Scanner)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
if src == nil {
|
||
|
|
return s.ScanInt64(Int8{})
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(src) != <%= pg_byte_size %> {
|
||
|
|
return fmt.Errorf("invalid length for int<%= pg_byte_size %>: %v", len(src))
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
n := int64(int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src)))
|
||
|
|
|
||
|
|
return s.ScanInt64(Int8{Int64: n, Valid: true})
|
||
|
|
}
|
||
|
|
|
||
|
|
<%# PostgreSQL binary format integer to Go TextScanner %>
|
||
|
|
type scanPlanBinaryInt<%= pg_byte_size %>ToTextScanner struct{}
|
||
|
|
|
||
|
|
func (scanPlanBinaryInt<%= pg_byte_size %>ToTextScanner) Scan(src []byte, dst any) error {
|
||
|
|
s, ok := (dst).(TextScanner)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
if src == nil {
|
||
|
|
return s.ScanText(Text{})
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(src) != <%= pg_byte_size %> {
|
||
|
|
return fmt.Errorf("invalid length for int<%= pg_byte_size %>: %v", len(src))
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
n := int64(int<%= pg_bit_size %>(binary.BigEndian.Uint<%= pg_bit_size %>(src)))
|
||
|
|
|
||
|
|
return s.ScanText(Text{String: strconv.FormatInt(n, 10), Valid: true})
|
||
|
|
}
|
||
|
|
<% end %>
|
||
|
|
|
||
|
|
<%# Any text to all integer types %>
|
||
|
|
<% [
|
||
|
|
["8", 8],
|
||
|
|
["16", 16],
|
||
|
|
["32", 32],
|
||
|
|
["64", 64],
|
||
|
|
["", 0]
|
||
|
|
].each do |type_suffix, bit_size| %>
|
||
|
|
type scanPlanTextAnyToInt<%= type_suffix %> struct{}
|
||
|
|
|
||
|
|
func (scanPlanTextAnyToInt<%= type_suffix %>) Scan(src []byte, dst any) error {
|
||
|
|
if src == nil {
|
||
|
|
return fmt.Errorf("cannot scan NULL into %T", dst)
|
||
|
|
}
|
||
|
|
|
||
|
|
p, ok := (dst).(*int<%= type_suffix %>)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
n, err := strconv.ParseInt(string(src), 10, <%= bit_size %>)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
*p = int<%= type_suffix %>(n)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
type scanPlanTextAnyToUint<%= type_suffix %> struct{}
|
||
|
|
|
||
|
|
func (scanPlanTextAnyToUint<%= type_suffix %>) Scan(src []byte, dst any) error {
|
||
|
|
if src == nil {
|
||
|
|
return fmt.Errorf("cannot scan NULL into %T", dst)
|
||
|
|
}
|
||
|
|
|
||
|
|
p, ok := (dst).(*uint<%= type_suffix %>)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
n, err := strconv.ParseUint(string(src), 10, <%= bit_size %>)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
*p = uint<%= type_suffix %>(n)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
<% end %>
|
||
|
|
|
||
|
|
type scanPlanTextAnyToInt64Scanner struct{}
|
||
|
|
|
||
|
|
func (scanPlanTextAnyToInt64Scanner) Scan(src []byte, dst any) error {
|
||
|
|
s, ok := (dst).(Int64Scanner)
|
||
|
|
if !ok {
|
||
|
|
return ErrScanTargetTypeChanged
|
||
|
|
}
|
||
|
|
|
||
|
|
if src == nil {
|
||
|
|
return s.ScanInt64(Int8{})
|
||
|
|
}
|
||
|
|
|
||
|
|
n, err := strconv.ParseInt(string(src), 10, 64)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
err = s.ScanInt64(Int8{Int64: n, Valid: true})
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|