Update toml dependency

This commit is contained in:
Frank Denis 2021-08-08 10:21:25 +02:00
parent 1052fa6323
commit c9d5d81e6a
43 changed files with 1455 additions and 825 deletions

View file

@ -1,19 +1,17 @@
package toml
import (
"encoding"
"fmt"
"io"
"io/ioutil"
"math"
"os"
"reflect"
"strings"
"time"
)
func e(format string, args ...interface{}) error {
return fmt.Errorf("toml: "+format, args...)
}
// Unmarshaler is the interface implemented by objects that can unmarshal a
// TOML description of themselves.
type Unmarshaler interface {
@ -27,30 +25,21 @@ func Unmarshal(p []byte, v interface{}) error {
}
// Primitive is a TOML value that hasn't been decoded into a Go value.
// When using the various `Decode*` functions, the type `Primitive` may
// be given to any value, and its decoding will be delayed.
//
// A `Primitive` value can be decoded using the `PrimitiveDecode` function.
// This type can be used for any value, which will cause decoding to be delayed.
// You can use the PrimitiveDecode() function to "manually" decode these values.
//
// The underlying representation of a `Primitive` value is subject to change.
// Do not rely on it.
// NOTE: The underlying representation of a `Primitive` value is subject to
// change. Do not rely on it.
//
// N.B. Primitive values are still parsed, so using them will only avoid
// the overhead of reflection. They can be useful when you don't know the
// exact type of TOML data until run time.
// NOTE: Primitive values are still parsed, so using them will only avoid the
// overhead of reflection. They can be useful when you don't know the exact type
// of TOML data until runtime.
type Primitive struct {
undecoded interface{}
context Key
}
// DEPRECATED!
//
// Use MetaData.PrimitiveDecode instead.
func PrimitiveDecode(primValue Primitive, v interface{}) error {
md := MetaData{decoded: make(map[string]bool)}
return md.unify(primValue.undecoded, rvalue(v))
}
// PrimitiveDecode is just like the other `Decode*` functions, except it
// decodes a TOML value that has already been parsed. Valid primitive values
// can *only* be obtained from values filled by the decoder functions,
@ -68,43 +57,51 @@ func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
return md.unify(primValue.undecoded, rvalue(v))
}
// Decode will decode the contents of `data` in TOML format into a pointer
// `v`.
// Decoder decodes TOML data.
//
// TOML hashes correspond to Go structs or maps. (Dealer's choice. They can be
// used interchangeably.)
// TOML tables correspond to Go structs or maps (dealer's choice – they can be
// used interchangeably).
//
// TOML arrays of tables correspond to either a slice of structs or a slice
// of maps.
// TOML table arrays correspond to either a slice of structs or a slice of maps.
//
// TOML datetimes correspond to Go `time.Time` values.
// TOML datetimes correspond to Go time.Time values. Local datetimes are parsed
// in the local timezone.
//
// All other TOML types (float, string, int, bool and array) correspond
// to the obvious Go types.
// All other TOML types (float, string, int, bool and array) correspond to the
// obvious Go types.
//
// An exception to the above rules is if a type implements the
// encoding.TextUnmarshaler interface. In this case, any primitive TOML value
// (floats, strings, integers, booleans and datetimes) will be converted to
// a byte string and given to the value's UnmarshalText method. See the
// Unmarshaler example for a demonstration with time duration strings.
// An exception to the above rules is if a type implements the TextUnmarshaler
// interface, in which case any primitive TOML value (floats, strings, integers,
// booleans, datetimes) will be converted to a []byte and given to the value's
// UnmarshalText method. See the Unmarshaler example for a demonstration with
// time duration strings.
//
// Key mapping
//
// TOML keys can map to either keys in a Go map or field names in a Go
// struct. The special `toml` struct tag may be used to map TOML keys to
// struct fields that don't match the key name exactly. (See the example.)
// A case insensitive match to struct names will be tried if an exact match
// can't be found.
// TOML keys can map to either keys in a Go map or field names in a Go struct.
// The special `toml` struct tag can be used to map TOML keys to struct fields
// that don't match the key name exactly (see the example). A case insensitive
// match to struct names will be tried if an exact match can't be found.
//
// The mapping between TOML values and Go values is loose. That is, there
// may exist TOML values that cannot be placed into your representation, and
// there may be parts of your representation that do not correspond to
// TOML values. This loose mapping can be made stricter by using the IsDefined
// and/or Undecoded methods on the MetaData returned.
// The mapping between TOML values and Go values is loose. That is, there may
// exist TOML values that cannot be placed into your representation, and there
// may be parts of your representation that do not correspond to TOML values.
// This loose mapping can be made stricter by using the IsDefined and/or
// Undecoded methods on the MetaData returned.
//
// This decoder will not handle cyclic types. If a cyclic type is passed,
// `Decode` will not terminate.
func Decode(data string, v interface{}) (MetaData, error) {
// This decoder does not handle cyclic types. Decode will not terminate if a
// cyclic type is passed.
type Decoder struct {
r io.Reader
}
// NewDecoder creates a new Decoder.
func NewDecoder(r io.Reader) *Decoder {
return &Decoder{r: r}
}
// Decode TOML data in to the pointer `v`.
func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Ptr {
return MetaData{}, e("Decode of non-pointer %s", reflect.TypeOf(v))
@ -112,7 +109,15 @@ func Decode(data string, v interface{}) (MetaData, error) {
if rv.IsNil() {
return MetaData{}, e("Decode of nil %s", reflect.TypeOf(v))
}
p, err := parse(data)
// TODO: have parser should read from io.Reader? Or at the very least, make
// it read from []byte rather than string
data, err := ioutil.ReadAll(dec.r)
if err != nil {
return MetaData{}, err
}
p, err := parse(string(data))
if err != nil {
return MetaData{}, err
}
@ -123,24 +128,22 @@ func Decode(data string, v interface{}) (MetaData, error) {
return md, md.unify(p.mapping, indirect(rv))
}
// DecodeFile is just like Decode, except it will automatically read the
// contents of the file at `fpath` and decode it for you.
func DecodeFile(fpath string, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadFile(fpath)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
// Decode the TOML data in to the pointer v.
//
// See the documentation on Decoder for a description of the decoding process.
func Decode(data string, v interface{}) (MetaData, error) {
return NewDecoder(strings.NewReader(data)).Decode(v)
}
// DecodeReader is just like Decode, except it will consume all bytes
// from the reader and decode it for you.
func DecodeReader(r io.Reader, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadAll(r)
// DecodeFile is just like Decode, except it will automatically read the
// contents of the file at path and decode it for you.
func DecodeFile(path string, v interface{}) (MetaData, error) {
fp, err := os.Open(path)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
defer fp.Close()
return NewDecoder(fp).Decode(v)
}
// unify performs a sort of type unification based on the structure of `rv`,
@ -149,8 +152,8 @@ func DecodeReader(r io.Reader, v interface{}) (MetaData, error) {
// Any type mismatch produces an error. Finding a type that we don't know
// how to handle produces an unsupported type error.
func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
// Special case. Look for a `Primitive` value.
// TODO: #76 would make this superfluous after implemented.
if rv.Type() == reflect.TypeOf((*Primitive)(nil)).Elem() {
// Save the undecoded data and the key context into the primitive
// value.
@ -170,25 +173,17 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
}
}
// Special case. Handle time.Time values specifically.
// TODO: Remove this code when we decide to drop support for Go 1.1.
// This isn't necessary in Go 1.2 because time.Time satisfies the encoding
// interfaces.
if rv.Type().AssignableTo(rvalue(time.Time{}).Type()) {
return md.unifyDatetime(data, rv)
}
// Special case. Look for a value satisfying the TextUnmarshaler interface.
if v, ok := rv.Interface().(TextUnmarshaler); ok {
if v, ok := rv.Interface().(encoding.TextUnmarshaler); ok {
return md.unifyText(data, v)
}
// BUG(burntsushi)
// TODO:
// The behavior here is incorrect whenever a Go type satisfies the
// encoding.TextUnmarshaler interface but also corresponds to a TOML
// hash or array. In particular, the unmarshaler should only be applied
// to primitive TOML values. But at this point, it will be applied to
// all kinds of values and produce an incorrect error whenever those values
// are hashes or arrays (including arrays of tables).
// encoding.TextUnmarshaler interface but also corresponds to a TOML hash or
// array. In particular, the unmarshaler should only be applied to primitive
// TOML values. But at this point, it will be applied to all kinds of values
// and produce an incorrect error whenever those values are hashes or arrays
// (including arrays of tables).
k := rv.Kind()
@ -277,6 +272,12 @@ func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
}
func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
if k := rv.Type().Key().Kind(); k != reflect.String {
return fmt.Errorf(
"toml: cannot decode to a map with non-string key type (%s in %q)",
k, rv.Type())
}
tmap, ok := mapping.(map[string]interface{})
if !ok {
if tmap == nil {
@ -312,10 +313,8 @@ func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
}
return badtype("slice", data)
}
sliceLen := datav.Len()
if sliceLen != rv.Len() {
return e("expected array length %d; got TOML array of length %d",
rv.Len(), sliceLen)
if l := datav.Len(); l != rv.Len() {
return e("expected array length %d; got TOML array of length %d", rv.Len(), l)
}
return md.unifySliceArray(datav, rv)
}
@ -337,11 +336,10 @@ func (md *MetaData) unifySlice(data interface{}, rv reflect.Value) error {
}
func (md *MetaData) unifySliceArray(data, rv reflect.Value) error {
sliceLen := data.Len()
for i := 0; i < sliceLen; i++ {
v := data.Index(i).Interface()
sliceval := indirect(rv.Index(i))
if err := md.unify(v, sliceval); err != nil {
l := data.Len()
for i := 0; i < l; i++ {
err := md.unify(data.Index(i).Interface(), indirect(rv.Index(i)))
if err != nil {
return err
}
}
@ -439,7 +437,7 @@ func (md *MetaData) unifyAnything(data interface{}, rv reflect.Value) error {
return nil
}
func (md *MetaData) unifyText(data interface{}, v TextUnmarshaler) error {
func (md *MetaData) unifyText(data interface{}, v encoding.TextUnmarshaler) error {
var s string
switch sdata := data.(type) {
case TextMarshaler:
@ -482,7 +480,7 @@ func indirect(v reflect.Value) reflect.Value {
if v.Kind() != reflect.Ptr {
if v.CanSet() {
pv := v.Addr()
if _, ok := pv.Interface().(TextUnmarshaler); ok {
if _, ok := pv.Interface().(encoding.TextUnmarshaler); ok {
return pv
}
}
@ -498,12 +496,16 @@ func isUnifiable(rv reflect.Value) bool {
if rv.CanSet() {
return true
}
if _, ok := rv.Interface().(TextUnmarshaler); ok {
if _, ok := rv.Interface().(encoding.TextUnmarshaler); ok {
return true
}
return false
}
func e(format string, args ...interface{}) error {
return fmt.Errorf("toml: "+format, args...)
}
func badtype(expected string, data interface{}) error {
return e("cannot load TOML value of type %T into a Go %s", data, expected)
}