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values.go
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values.go
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package statement
import (
"encoding/hex"
"fmt"
"strconv"
"strings"
"time"
)
var rfc3339micro = "'2006-01-02T15:04:05.999999Z07:00'"
func writeValue(buf Buffer, arg interface{}, keyword bool) (err error) {
switch arg := arg.(type) {
case nil:
_, _ = buf.WriteString("null")
case int:
_, _ = buf.WriteString(strconv.FormatInt(int64(arg), 10))
case int8:
_, _ = buf.WriteString(strconv.FormatInt(int64(arg), 10))
case int16:
_, _ = buf.WriteString(strconv.FormatInt(int64(arg), 10))
case int32:
_, _ = buf.WriteString(strconv.FormatInt(int64(arg), 10))
case int64:
_, _ = buf.WriteString(strconv.FormatInt(arg, 10))
case float32:
_, _ = buf.WriteString(strconv.FormatFloat(float64(arg), 'f', -1, 64))
case float64:
_, _ = buf.WriteString(strconv.FormatFloat(arg, 'f', -1, 64))
case bool:
_, _ = buf.WriteString(strconv.FormatBool(arg))
case []byte:
_, _ = buf.WriteString(quoteBytes(arg))
case string:
if keyword {
_, _ = buf.WriteString(arg)
} else {
_, _ = buf.WriteString(quoteString(arg))
}
case time.Time:
_, _ = buf.WriteString(arg.Format(rfc3339micro))
case fmt.Stringer:
_, _ = buf.WriteString(quoteString(arg.String()))
default:
return fmt.Errorf("statement: invalid arg type: %T, value: %#v", arg, arg)
}
return nil
}
// TODO: consider manually inlining this
func quoteString(str string) string {
return "'" + strings.ReplaceAll(str, "'", "''") + "'"
}
// TODO: consider manually inlining this
func quoteBytes(buf []byte) string {
return `'\x` + hex.EncodeToString(buf) + "'"
}