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Fix numerical issues.

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Nuno Cruces
2025-01-20 14:39:36 +00:00
parent 1677b97fa4
commit e2da469834
9 changed files with 200 additions and 50 deletions
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17
internal/util/json.go
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@@ -2,6 +2,7 @@ package util
import (
"encoding/json"
"math"
"strconv"
"time"
"unsafe"
@@ -20,7 +21,7 @@ func (j JSON) Scan(value any) error {
case int64:
buf = strconv.AppendInt(nil, v, 10)
case float64:
buf = strconv.AppendFloat(nil, v, 'g', -1, 64)
buf = AppendNumber(nil, v)
case time.Time:
buf = append(buf, '"')
buf = v.AppendFormat(buf, time.RFC3339Nano)
@@ -33,3 +34,17 @@ func (j JSON) Scan(value any) error {
return json.Unmarshal(buf, j.Value)
}
func AppendNumber(dst []byte, f float64) []byte {
switch {
case math.IsNaN(f):
dst = append(dst, "null"...)
case math.IsInf(f, 1):
dst = append(dst, "9.0e999"...)
case math.IsInf(f, -1):
dst = append(dst, "-9.0e999"...)
default:
return strconv.AppendFloat(dst, f, 'g', -1, 64)
}
return dst
}