/
field.go
63 lines (53 loc) · 1.46 KB
/
field.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016-present Datadog, Inc.
// Package eval holds eval related files
package eval
import "errors"
// Field name
type Field = string
// FieldValueType represents the type of the value of a field
type FieldValueType int
// Field value types
const (
ScalarValueType FieldValueType = 1 << 0
GlobValueType FieldValueType = 1 << 1
PatternValueType FieldValueType = 1 << 2
RegexpValueType FieldValueType = 1 << 3
BitmaskValueType FieldValueType = 1 << 4
VariableValueType FieldValueType = 1 << 5
IPNetValueType FieldValueType = 1 << 6
)
// MarshalJSON returns the JSON encoding of the FieldValueType
func (t FieldValueType) MarshalJSON() ([]byte, error) {
s := t.String()
if s == "" {
return nil, errors.New("invalid field value type")
}
return []byte(`"` + s + `"`), nil
}
func (t FieldValueType) String() string {
switch t {
case ScalarValueType:
return "scalar"
case GlobValueType:
return "glob"
case PatternValueType:
return "pattern"
case RegexpValueType:
return "regex"
case BitmaskValueType:
return "bitmask"
case VariableValueType:
return "variable"
case IPNetValueType:
return "ip"
}
return ""
}
// FieldValue describes a field value with its type
type FieldValue struct {
Value interface{}
Type FieldValueType
}