mirror of
https://gitea.com/Lydanne/buildx.git
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vendor: update buildkit to 8effd45b
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
304
vendor/github.com/mitchellh/mapstructure/mapstructure.go
generated
vendored
304
vendor/github.com/mitchellh/mapstructure/mapstructure.go
generated
vendored
@ -1,150 +1,10 @@
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// Package mapstructure exposes functionality to convert one arbitrary
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// Go type into another, typically to convert a map[string]interface{}
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// into a native Go structure.
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// Package mapstructure exposes functionality to convert an arbitrary
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// map[string]interface{} into a native Go structure.
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//
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// The Go structure can be arbitrarily complex, containing slices,
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// other structs, etc. and the decoder will properly decode nested
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// maps and so on into the proper structures in the native Go struct.
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// See the examples to see what the decoder is capable of.
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//
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// The simplest function to start with is Decode.
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//
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// Field Tags
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//
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// When decoding to a struct, mapstructure will use the field name by
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// default to perform the mapping. For example, if a struct has a field
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// "Username" then mapstructure will look for a key in the source value
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// of "username" (case insensitive).
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//
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// type User struct {
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// Username string
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// }
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//
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// You can change the behavior of mapstructure by using struct tags.
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// The default struct tag that mapstructure looks for is "mapstructure"
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// but you can customize it using DecoderConfig.
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//
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// Renaming Fields
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//
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// To rename the key that mapstructure looks for, use the "mapstructure"
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// tag and set a value directly. For example, to change the "username" example
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// above to "user":
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//
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// type User struct {
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// Username string `mapstructure:"user"`
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// }
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//
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// Embedded Structs and Squashing
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//
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// Embedded structs are treated as if they're another field with that name.
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// By default, the two structs below are equivalent when decoding with
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// mapstructure:
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//
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// type Person struct {
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// Name string
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// }
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//
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// type Friend struct {
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// Person
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// }
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//
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// type Friend struct {
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// Person Person
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// }
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//
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// This would require an input that looks like below:
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//
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// map[string]interface{}{
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// "person": map[string]interface{}{"name": "alice"},
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// }
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//
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// If your "person" value is NOT nested, then you can append ",squash" to
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// your tag value and mapstructure will treat it as if the embedded struct
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// were part of the struct directly. Example:
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//
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// type Friend struct {
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// Person `mapstructure:",squash"`
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// }
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//
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// Now the following input would be accepted:
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//
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// map[string]interface{}{
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// "name": "alice",
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// }
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//
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// DecoderConfig has a field that changes the behavior of mapstructure
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// to always squash embedded structs.
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//
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// Remainder Values
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//
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// If there are any unmapped keys in the source value, mapstructure by
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// default will silently ignore them. You can error by setting ErrorUnused
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// in DecoderConfig. If you're using Metadata you can also maintain a slice
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// of the unused keys.
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//
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// You can also use the ",remain" suffix on your tag to collect all unused
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// values in a map. The field with this tag MUST be a map type and should
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// probably be a "map[string]interface{}" or "map[interface{}]interface{}".
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// See example below:
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//
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// type Friend struct {
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// Name string
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// Other map[string]interface{} `mapstructure:",remain"`
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// }
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//
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// Given the input below, Other would be populated with the other
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// values that weren't used (everything but "name"):
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//
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// map[string]interface{}{
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// "name": "bob",
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// "address": "123 Maple St.",
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// }
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//
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// Omit Empty Values
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//
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// When decoding from a struct to any other value, you may use the
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// ",omitempty" suffix on your tag to omit that value if it equates to
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// the zero value. The zero value of all types is specified in the Go
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// specification.
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//
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// For example, the zero type of a numeric type is zero ("0"). If the struct
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// field value is zero and a numeric type, the field is empty, and it won't
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// be encoded into the destination type.
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//
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// type Source {
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// Age int `mapstructure:",omitempty"`
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// }
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//
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// Unexported fields
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//
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// Since unexported (private) struct fields cannot be set outside the package
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// where they are defined, the decoder will simply skip them.
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//
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// For this output type definition:
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//
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// type Exported struct {
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// private string // this unexported field will be skipped
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// Public string
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// }
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//
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// Using this map as input:
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//
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// map[string]interface{}{
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// "private": "I will be ignored",
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// "Public": "I made it through!",
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// }
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//
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// The following struct will be decoded:
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//
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// type Exported struct {
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// private: "" // field is left with an empty string (zero value)
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// Public: "I made it through!"
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// }
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//
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// Other Configuration
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//
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// mapstructure is highly configurable. See the DecoderConfig struct
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// for other features and options that are supported.
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package mapstructure
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import (
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@ -220,14 +80,6 @@ type DecoderConfig struct {
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//
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WeaklyTypedInput bool
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// Squash will squash embedded structs. A squash tag may also be
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// added to an individual struct field using a tag. For example:
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//
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// type Parent struct {
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// Child `mapstructure:",squash"`
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// }
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Squash bool
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// Metadata is the struct that will contain extra metadata about
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// the decoding. If this is nil, then no metadata will be tracked.
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Metadata *Metadata
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@ -419,7 +271,6 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
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var err error
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outputKind := getKind(outVal)
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addMetaKey := true
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switch outputKind {
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case reflect.Bool:
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err = d.decodeBool(name, input, outVal)
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@ -438,7 +289,7 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
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case reflect.Map:
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err = d.decodeMap(name, input, outVal)
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case reflect.Ptr:
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addMetaKey, err = d.decodePtr(name, input, outVal)
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err = d.decodePtr(name, input, outVal)
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case reflect.Slice:
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err = d.decodeSlice(name, input, outVal)
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case reflect.Array:
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@ -452,7 +303,7 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
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// If we reached here, then we successfully decoded SOMETHING, so
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// mark the key as used if we're tracking metainput.
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if addMetaKey && d.config.Metadata != nil && name != "" {
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if d.config.Metadata != nil && name != "" {
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d.config.Metadata.Keys = append(d.config.Metadata.Keys, name)
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}
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@ -587,7 +438,6 @@ func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) er
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func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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dataType := dataVal.Type()
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switch {
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case dataKind == reflect.Int:
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@ -619,18 +469,6 @@ func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) e
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} else {
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return fmt.Errorf("cannot parse '%s' as uint: %s", name, err)
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}
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case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
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jn := data.(json.Number)
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i, err := jn.Int64()
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if err != nil {
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return fmt.Errorf(
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"error decoding json.Number into %s: %s", name, err)
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}
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if i < 0 && !d.config.WeaklyTypedInput {
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return fmt.Errorf("cannot parse '%s', %d overflows uint",
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name, i)
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}
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val.SetUint(uint64(i))
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default:
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return fmt.Errorf(
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"'%s' expected type '%s', got unconvertible type '%s'",
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@ -840,31 +678,27 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re
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}
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tagValue := f.Tag.Get(d.config.TagName)
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keyName := f.Name
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tagParts := strings.Split(tagValue, ",")
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// If Squash is set in the config, we squash the field down.
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squash := d.config.Squash && v.Kind() == reflect.Struct && f.Anonymous
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// Determine the name of the key in the map
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if index := strings.Index(tagValue, ","); index != -1 {
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if tagValue[:index] == "-" {
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continue;
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}
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// If "omitempty" is specified in the tag, it ignores empty values.
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if strings.Index(tagValue[index + 1:], "omitempty") != -1 && isEmptyValue(v) {
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keyName := f.Name
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if tagParts[0] != "" {
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if tagParts[0] == "-" {
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continue
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}
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keyName = tagParts[0]
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}
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// If "squash" is specified in the tag, we squash the field down.
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squash = !squash && strings.Index(tagValue[index + 1:], "squash") != -1
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if squash && v.Kind() != reflect.Struct {
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return fmt.Errorf("cannot squash non-struct type '%s'", v.Type())
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// If "squash" is specified in the tag, we squash the field down.
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squash := false
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for _, tag := range tagParts[1:] {
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if tag == "squash" {
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squash = true
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break
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}
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keyName = tagValue[:index]
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} else if len(tagValue) > 0 {
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if tagValue == "-" {
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continue
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}
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keyName = tagValue
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}
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if squash && v.Kind() != reflect.Struct {
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return fmt.Errorf("cannot squash non-struct type '%s'", v.Type())
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}
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switch v.Kind() {
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@ -904,7 +738,7 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re
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return nil
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}
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func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) (bool, error) {
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func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) error {
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// If the input data is nil, then we want to just set the output
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// pointer to be nil as well.
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isNil := data == nil
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@ -925,7 +759,7 @@ func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) (b
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val.Set(nilValue)
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}
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return true, nil
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return nil
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}
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// Create an element of the concrete (non pointer) type and decode
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@ -939,16 +773,16 @@ func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) (b
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}
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if err := d.decode(name, data, reflect.Indirect(realVal)); err != nil {
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return false, err
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return err
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}
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val.Set(realVal)
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} else {
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if err := d.decode(name, data, reflect.Indirect(val)); err != nil {
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return false, err
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return err
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}
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}
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return false, nil
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return nil
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}
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func (d *Decoder) decodeFunc(name string, data interface{}, val reflect.Value) error {
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@ -971,8 +805,8 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
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valElemType := valType.Elem()
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sliceType := reflect.SliceOf(valElemType)
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// If we have a non array/slice type then we first attempt to convert.
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if dataValKind != reflect.Array && dataValKind != reflect.Slice {
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valSlice := val
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if valSlice.IsNil() || d.config.ZeroFields {
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if d.config.WeaklyTypedInput {
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switch {
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// Slice and array we use the normal logic
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@ -999,17 +833,18 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
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}
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}
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return fmt.Errorf(
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"'%s': source data must be an array or slice, got %s", name, dataValKind)
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}
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// Check input type
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if dataValKind != reflect.Array && dataValKind != reflect.Slice {
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return fmt.Errorf(
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"'%s': source data must be an array or slice, got %s", name, dataValKind)
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// If the input value is nil, then don't allocate since empty != nil
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if dataVal.IsNil() {
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return nil
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}
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}
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// If the input value is empty, then don't allocate since non-nil != nil
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if dataVal.Len() == 0 {
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return nil
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}
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valSlice := val
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if valSlice.IsNil() || d.config.ZeroFields {
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// Make a new slice to hold our result, same size as the original data.
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valSlice = reflect.MakeSlice(sliceType, dataVal.Len(), dataVal.Len())
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}
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@ -1170,11 +1005,6 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
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field reflect.StructField
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val reflect.Value
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}
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// remainField is set to a valid field set with the "remain" tag if
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// we are keeping track of remaining values.
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var remainField *field
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fields := []field{}
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for len(structs) > 0 {
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structVal := structs[0]
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@ -1187,21 +1017,13 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
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fieldKind := fieldType.Type.Kind()
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// If "squash" is specified in the tag, we squash the field down.
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squash := d.config.Squash && fieldKind == reflect.Struct && fieldType.Anonymous
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remain := false
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// We always parse the tags cause we're looking for other tags too
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squash := false
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tagParts := strings.Split(fieldType.Tag.Get(d.config.TagName), ",")
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for _, tag := range tagParts[1:] {
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if tag == "squash" {
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squash = true
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break
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}
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if tag == "remain" {
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remain = true
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break
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}
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}
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if squash {
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@ -1214,13 +1036,8 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
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continue
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}
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// Build our field
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if remain {
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remainField = &field{fieldType, structVal.Field(i)}
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} else {
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// Normal struct field, store it away
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fields = append(fields, field{fieldType, structVal.Field(i)})
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}
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// Normal struct field, store it away
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fields = append(fields, field{fieldType, structVal.Field(i)})
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}
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}
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@ -1261,6 +1078,9 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
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}
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}
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// Delete the key we're using from the unused map so we stop tracking
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delete(dataValKeysUnused, rawMapKey.Interface())
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if !fieldValue.IsValid() {
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// This should never happen
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panic("field is not valid")
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@ -1272,9 +1092,6 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
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continue
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}
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// Delete the key we're using from the unused map so we stop tracking
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delete(dataValKeysUnused, rawMapKey.Interface())
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// If the name is empty string, then we're at the root, and we
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// don't dot-join the fields.
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if name != "" {
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@ -1286,25 +1103,6 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
|
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}
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||||
}
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// If we have a "remain"-tagged field and we have unused keys then
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// we put the unused keys directly into the remain field.
|
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if remainField != nil && len(dataValKeysUnused) > 0 {
|
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// Build a map of only the unused values
|
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remain := map[interface{}]interface{}{}
|
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for key := range dataValKeysUnused {
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remain[key] = dataVal.MapIndex(reflect.ValueOf(key)).Interface()
|
||||
}
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||||
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||||
// Decode it as-if we were just decoding this map onto our map.
|
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if err := d.decodeMap(name, remain, remainField.val); err != nil {
|
||||
errors = appendErrors(errors, err)
|
||||
}
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||||
|
||||
// Set the map to nil so we have none so that the next check will
|
||||
// not error (ErrorUnused)
|
||||
dataValKeysUnused = nil
|
||||
}
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||||
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||||
if d.config.ErrorUnused && len(dataValKeysUnused) > 0 {
|
||||
keys := make([]string, 0, len(dataValKeysUnused))
|
||||
for rawKey := range dataValKeysUnused {
|
||||
@ -1335,24 +1133,6 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
|
||||
return nil
|
||||
}
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||||
|
||||
func isEmptyValue(v reflect.Value) bool {
|
||||
switch getKind(v) {
|
||||
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
|
||||
return v.Len() == 0
|
||||
case reflect.Bool:
|
||||
return !v.Bool()
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return v.Int() == 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return v.Uint() == 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return v.Float() == 0
|
||||
case reflect.Interface, reflect.Ptr:
|
||||
return v.IsNil()
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func getKind(val reflect.Value) reflect.Kind {
|
||||
kind := val.Kind()
|
||||
|
||||
|
||||
Reference in New Issue
Block a user