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119 lines
3.3 KiB
Go
119 lines
3.3 KiB
Go
// Based on https://github.com/kubernetes/apimachinery/blob/455a99f/pkg/util/intstr/intstr.go
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package multitype
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import (
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"encoding/json"
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"fmt"
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fuzz "github.com/google/gofuzz"
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)
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// BoolOrString is a type that can hold an bool or a string. When used in
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// JSON or YAML marshalling and unmarshalling, it produces or consumes the
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// inner type. This allows you to have, for example, a JSON field that can
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// accept a booolean string or raw bool.
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//
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// +protobuf=true
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// +protobuf.options.(gogoproto.goproto_stringer)=false
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// +k8s:openapi-gen=true
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// +kubebuilder:validation:Type=BoolString
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type BoolOrString struct {
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Type BoolOrStringType `protobuf:"varbool,1,opt,name=type,casttype=Type" json:"-"`
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BoolVal bool `protobuf:"varbool,2,opt,name=boolVal" json:"-"`
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StrVal string `protobuf:"bytes,3,opt,name=strVal" json:"-"`
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}
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// Type represents the stored type of BoolOrString.
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type BoolOrStringType int
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const (
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Bool BoolOrStringType = iota // The BoolOrString holds an bool.
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String // The BoolOrString holds a string.
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)
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// FromBool creates an BoolOrString object with a bool value.
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func FromBool(val bool) BoolOrString {
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return BoolOrString{Type: Bool, BoolVal: val}
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}
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// FromString creates an BoolOrString object with a string value.
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func FromString(val string) BoolOrString {
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return BoolOrString{Type: String, StrVal: val}
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}
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// Parse the given string
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func Parse(val string) BoolOrString {
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return FromString(val)
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}
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// UnmarshalJSON implements the json.Unmarshaller boolerface.
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func (boolstr *BoolOrString) UnmarshalJSON(value []byte) error {
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if value[0] == '"' {
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boolstr.Type = String
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return json.Unmarshal(value, &boolstr.StrVal)
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}
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boolstr.Type = Bool
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return json.Unmarshal(value, &boolstr.BoolVal)
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}
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// String returns the string value, '1' for true, or '' for false.
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func (boolstr *BoolOrString) String() string {
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if boolstr.Type == String {
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return boolstr.StrVal
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} else if boolstr.BoolVal {
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return "1"
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} else {
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return ""
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}
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}
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// MarshalJSON implements the json.Marshaller interface.
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func (boolstr BoolOrString) MarshalJSON() ([]byte, error) {
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switch boolstr.Type {
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case Bool:
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return json.Marshal(boolstr.BoolVal)
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case String:
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return json.Marshal(boolstr.StrVal)
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default:
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return []byte{}, fmt.Errorf("impossible BoolOrString.Type")
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}
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}
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// MarshalYAML implements the yaml.Marshaller interface https://godoc.org/gopkg.in/yaml.v3#Marshaler
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func (boolstr BoolOrString) MarshalYAML() (interface{}, error) {
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switch boolstr.Type {
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case Bool:
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return boolstr.BoolVal, nil
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case String:
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return boolstr.StrVal, nil
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default:
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return []byte{}, fmt.Errorf("impossible BoolOrString.Type")
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}
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}
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// OpenAPISchemaType is used by the kube-openapi generator when constructing
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// the OpenAPI spec of this type.
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//
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// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
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func (BoolOrString) OpenAPISchemaType() []string { return []string{"string"} }
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// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
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// the OpenAPI spec of this type.
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func (BoolOrString) OpenAPISchemaFormat() string { return "bool-or-string" }
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func (boolstr *BoolOrString) Fuzz(c fuzz.Continue) {
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if boolstr == nil {
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return
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}
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if c.RandBool() {
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boolstr.Type = Bool
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c.Fuzz(&boolstr.BoolVal)
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boolstr.StrVal = ""
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} else {
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boolstr.Type = String
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boolstr.BoolVal = false
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c.Fuzz(&boolstr.StrVal)
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}
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}
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