mirror of
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Update dependencies (#1813)
This commit is contained in:
Wim
950
vendor/github.com/pelletier/go-toml/v2/marshaler.go
generated
vendored
Normal file
950
vendor/github.com/pelletier/go-toml/v2/marshaler.go
generated
vendored
Normal file
@ -0,0 +1,950 @@
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package toml
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import (
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"bytes"
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"encoding"
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"fmt"
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"io"
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"math"
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"reflect"
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"sort"
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"strconv"
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"strings"
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"time"
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"unicode"
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)
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// Marshal serializes a Go value as a TOML document.
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//
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// It is a shortcut for Encoder.Encode() with the default options.
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func Marshal(v interface{}) ([]byte, error) {
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var buf bytes.Buffer
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enc := NewEncoder(&buf)
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err := enc.Encode(v)
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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// Encoder writes a TOML document to an output stream.
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type Encoder struct {
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// output
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w io.Writer
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// global settings
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tablesInline bool
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arraysMultiline bool
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indentSymbol string
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indentTables bool
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}
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// NewEncoder returns a new Encoder that writes to w.
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func NewEncoder(w io.Writer) *Encoder {
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return &Encoder{
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w: w,
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indentSymbol: " ",
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}
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}
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// SetTablesInline forces the encoder to emit all tables inline.
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//
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// This behavior can be controlled on an individual struct field basis with the
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// inline tag:
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//
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// MyField `inline:"true"`
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func (enc *Encoder) SetTablesInline(inline bool) *Encoder {
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enc.tablesInline = inline
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return enc
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}
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// SetArraysMultiline forces the encoder to emit all arrays with one element per
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// line.
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//
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// This behavior can be controlled on an individual struct field basis with the multiline tag:
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//
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// MyField `multiline:"true"`
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func (enc *Encoder) SetArraysMultiline(multiline bool) *Encoder {
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enc.arraysMultiline = multiline
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return enc
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}
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// SetIndentSymbol defines the string that should be used for indentation. The
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// provided string is repeated for each indentation level. Defaults to two
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// spaces.
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func (enc *Encoder) SetIndentSymbol(s string) *Encoder {
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enc.indentSymbol = s
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return enc
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}
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// SetIndentTables forces the encoder to intent tables and array tables.
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func (enc *Encoder) SetIndentTables(indent bool) *Encoder {
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enc.indentTables = indent
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return enc
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}
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// Encode writes a TOML representation of v to the stream.
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//
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// If v cannot be represented to TOML it returns an error.
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//
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// Encoding rules
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//
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// A top level slice containing only maps or structs is encoded as [[table
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// array]].
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//
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// All slices not matching rule 1 are encoded as [array]. As a result, any map
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// or struct they contain is encoded as an {inline table}.
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//
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// Nil interfaces and nil pointers are not supported.
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//
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// Keys in key-values always have one part.
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//
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// Intermediate tables are always printed.
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//
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// By default, strings are encoded as literal string, unless they contain either
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// a newline character or a single quote. In that case they are emitted as
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// quoted strings.
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//
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// When encoding structs, fields are encoded in order of definition, with their
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// exact name.
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//
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// Struct tags
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//
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// The encoding of each public struct field can be customized by the format
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// string in the "toml" key of the struct field's tag. This follows
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// encoding/json's convention. The format string starts with the name of the
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// field, optionally followed by a comma-separated list of options. The name may
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// be empty in order to provide options without overriding the default name.
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//
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// The "multiline" option emits strings as quoted multi-line TOML strings. It
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// has no effect on fields that would not be encoded as strings.
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//
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// The "inline" option turns fields that would be emitted as tables into inline
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// tables instead. It has no effect on other fields.
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//
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// The "omitempty" option prevents empty values or groups from being emitted.
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//
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// In addition to the "toml" tag struct tag, a "comment" tag can be used to emit
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// a TOML comment before the value being annotated. Comments are ignored inside
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// inline tables.
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func (enc *Encoder) Encode(v interface{}) error {
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var (
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b []byte
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ctx encoderCtx
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)
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ctx.inline = enc.tablesInline
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if v == nil {
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return fmt.Errorf("toml: cannot encode a nil interface")
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}
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b, err := enc.encode(b, ctx, reflect.ValueOf(v))
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if err != nil {
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return err
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}
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_, err = enc.w.Write(b)
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if err != nil {
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return fmt.Errorf("toml: cannot write: %w", err)
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}
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return nil
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}
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type valueOptions struct {
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multiline bool
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omitempty bool
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comment string
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}
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type encoderCtx struct {
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// Current top-level key.
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parentKey []string
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// Key that should be used for a KV.
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key string
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// Extra flag to account for the empty string
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hasKey bool
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// Set to true to indicate that the encoder is inside a KV, so that all
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// tables need to be inlined.
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insideKv bool
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// Set to true to skip the first table header in an array table.
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skipTableHeader bool
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// Should the next table be encoded as inline
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inline bool
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// Indentation level
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indent int
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// Options coming from struct tags
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options valueOptions
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}
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func (ctx *encoderCtx) shiftKey() {
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if ctx.hasKey {
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ctx.parentKey = append(ctx.parentKey, ctx.key)
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ctx.clearKey()
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}
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}
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func (ctx *encoderCtx) setKey(k string) {
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ctx.key = k
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ctx.hasKey = true
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}
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func (ctx *encoderCtx) clearKey() {
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ctx.key = ""
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ctx.hasKey = false
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}
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func (ctx *encoderCtx) isRoot() bool {
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return len(ctx.parentKey) == 0 && !ctx.hasKey
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}
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func (enc *Encoder) encode(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
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i := v.Interface()
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switch x := i.(type) {
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case time.Time:
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if x.Nanosecond() > 0 {
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return x.AppendFormat(b, time.RFC3339Nano), nil
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}
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return x.AppendFormat(b, time.RFC3339), nil
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case LocalTime:
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return append(b, x.String()...), nil
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case LocalDate:
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return append(b, x.String()...), nil
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case LocalDateTime:
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return append(b, x.String()...), nil
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}
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hasTextMarshaler := v.Type().Implements(textMarshalerType)
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if hasTextMarshaler || (v.CanAddr() && reflect.PtrTo(v.Type()).Implements(textMarshalerType)) {
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if !hasTextMarshaler {
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v = v.Addr()
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}
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if ctx.isRoot() {
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return nil, fmt.Errorf("toml: type %s implementing the TextMarshaler interface cannot be a root element", v.Type())
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}
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text, err := v.Interface().(encoding.TextMarshaler).MarshalText()
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if err != nil {
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return nil, err
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}
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b = enc.encodeString(b, string(text), ctx.options)
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return b, nil
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}
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switch v.Kind() {
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// containers
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case reflect.Map:
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return enc.encodeMap(b, ctx, v)
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case reflect.Struct:
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return enc.encodeStruct(b, ctx, v)
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case reflect.Slice:
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return enc.encodeSlice(b, ctx, v)
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case reflect.Interface:
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if v.IsNil() {
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return nil, fmt.Errorf("toml: encoding a nil interface is not supported")
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}
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return enc.encode(b, ctx, v.Elem())
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case reflect.Ptr:
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if v.IsNil() {
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return enc.encode(b, ctx, reflect.Zero(v.Type().Elem()))
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}
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return enc.encode(b, ctx, v.Elem())
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// values
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case reflect.String:
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b = enc.encodeString(b, v.String(), ctx.options)
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case reflect.Float32:
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f := v.Float()
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if math.IsNaN(f) {
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b = append(b, "nan"...)
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} else if f > math.MaxFloat32 {
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b = append(b, "inf"...)
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} else if f < -math.MaxFloat32 {
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b = append(b, "-inf"...)
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} else if math.Trunc(f) == f {
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b = strconv.AppendFloat(b, f, 'f', 1, 32)
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} else {
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b = strconv.AppendFloat(b, f, 'f', -1, 32)
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}
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case reflect.Float64:
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f := v.Float()
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if math.IsNaN(f) {
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b = append(b, "nan"...)
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} else if f > math.MaxFloat64 {
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b = append(b, "inf"...)
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} else if f < -math.MaxFloat64 {
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b = append(b, "-inf"...)
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} else if math.Trunc(f) == f {
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b = strconv.AppendFloat(b, f, 'f', 1, 64)
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} else {
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b = strconv.AppendFloat(b, f, 'f', -1, 64)
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}
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case reflect.Bool:
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if v.Bool() {
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b = append(b, "true"...)
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} else {
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b = append(b, "false"...)
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}
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case reflect.Uint64, reflect.Uint32, reflect.Uint16, reflect.Uint8, reflect.Uint:
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b = strconv.AppendUint(b, v.Uint(), 10)
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case reflect.Int64, reflect.Int32, reflect.Int16, reflect.Int8, reflect.Int:
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b = strconv.AppendInt(b, v.Int(), 10)
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default:
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return nil, fmt.Errorf("toml: cannot encode value of type %s", v.Kind())
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}
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return b, nil
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}
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func isNil(v reflect.Value) bool {
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switch v.Kind() {
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case reflect.Ptr, reflect.Interface, reflect.Map:
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return v.IsNil()
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default:
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return false
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}
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}
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func (enc *Encoder) encodeKv(b []byte, ctx encoderCtx, options valueOptions, v reflect.Value) ([]byte, error) {
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var err error
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if (ctx.options.omitempty || options.omitempty) && isEmptyValue(v) {
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return b, nil
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}
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if !ctx.inline {
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b = enc.encodeComment(ctx.indent, options.comment, b)
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}
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b = enc.indent(ctx.indent, b)
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b = enc.encodeKey(b, ctx.key)
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b = append(b, " = "...)
|
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|
||||
// create a copy of the context because the value of a KV shouldn't
|
||||
// modify the global context.
|
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subctx := ctx
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subctx.insideKv = true
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subctx.shiftKey()
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subctx.options = options
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|
||||
b, err = enc.encode(b, subctx, v)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func isEmptyValue(v reflect.Value) bool {
|
||||
switch v.Kind() {
|
||||
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
|
||||
}
|
||||
|
||||
const literalQuote = '\''
|
||||
|
||||
func (enc *Encoder) encodeString(b []byte, v string, options valueOptions) []byte {
|
||||
if needsQuoting(v) {
|
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return enc.encodeQuotedString(options.multiline, b, v)
|
||||
}
|
||||
|
||||
return enc.encodeLiteralString(b, v)
|
||||
}
|
||||
|
||||
func needsQuoting(v string) bool {
|
||||
// TODO: vectorize
|
||||
for _, b := range []byte(v) {
|
||||
if b == '\'' || b == '\r' || b == '\n' || invalidAscii(b) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// caller should have checked that the string does not contain new lines or ' .
|
||||
func (enc *Encoder) encodeLiteralString(b []byte, v string) []byte {
|
||||
b = append(b, literalQuote)
|
||||
b = append(b, v...)
|
||||
b = append(b, literalQuote)
|
||||
|
||||
return b
|
||||
}
|
||||
|
||||
//nolint:cyclop
|
||||
func (enc *Encoder) encodeQuotedString(multiline bool, b []byte, v string) []byte {
|
||||
stringQuote := `"`
|
||||
|
||||
if multiline {
|
||||
stringQuote = `"""`
|
||||
}
|
||||
|
||||
b = append(b, stringQuote...)
|
||||
if multiline {
|
||||
b = append(b, '\n')
|
||||
}
|
||||
|
||||
const (
|
||||
hextable = "0123456789ABCDEF"
|
||||
// U+0000 to U+0008, U+000A to U+001F, U+007F
|
||||
nul = 0x0
|
||||
bs = 0x8
|
||||
lf = 0xa
|
||||
us = 0x1f
|
||||
del = 0x7f
|
||||
)
|
||||
|
||||
for _, r := range []byte(v) {
|
||||
switch r {
|
||||
case '\\':
|
||||
b = append(b, `\\`...)
|
||||
case '"':
|
||||
b = append(b, `\"`...)
|
||||
case '\b':
|
||||
b = append(b, `\b`...)
|
||||
case '\f':
|
||||
b = append(b, `\f`...)
|
||||
case '\n':
|
||||
if multiline {
|
||||
b = append(b, r)
|
||||
} else {
|
||||
b = append(b, `\n`...)
|
||||
}
|
||||
case '\r':
|
||||
b = append(b, `\r`...)
|
||||
case '\t':
|
||||
b = append(b, `\t`...)
|
||||
default:
|
||||
switch {
|
||||
case r >= nul && r <= bs, r >= lf && r <= us, r == del:
|
||||
b = append(b, `\u00`...)
|
||||
b = append(b, hextable[r>>4])
|
||||
b = append(b, hextable[r&0x0f])
|
||||
default:
|
||||
b = append(b, r)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
b = append(b, stringQuote...)
|
||||
|
||||
return b
|
||||
}
|
||||
|
||||
// caller should have checked that the string is in A-Z / a-z / 0-9 / - / _ .
|
||||
func (enc *Encoder) encodeUnquotedKey(b []byte, v string) []byte {
|
||||
return append(b, v...)
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeTableHeader(ctx encoderCtx, b []byte) ([]byte, error) {
|
||||
if len(ctx.parentKey) == 0 {
|
||||
return b, nil
|
||||
}
|
||||
|
||||
b = enc.encodeComment(ctx.indent, ctx.options.comment, b)
|
||||
|
||||
b = enc.indent(ctx.indent, b)
|
||||
|
||||
b = append(b, '[')
|
||||
|
||||
b = enc.encodeKey(b, ctx.parentKey[0])
|
||||
|
||||
for _, k := range ctx.parentKey[1:] {
|
||||
b = append(b, '.')
|
||||
b = enc.encodeKey(b, k)
|
||||
}
|
||||
|
||||
b = append(b, "]\n"...)
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
//nolint:cyclop
|
||||
func (enc *Encoder) encodeKey(b []byte, k string) []byte {
|
||||
needsQuotation := false
|
||||
cannotUseLiteral := false
|
||||
|
||||
if len(k) == 0 {
|
||||
return append(b, "''"...)
|
||||
}
|
||||
|
||||
for _, c := range k {
|
||||
if (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '-' || c == '_' {
|
||||
continue
|
||||
}
|
||||
|
||||
if c == literalQuote {
|
||||
cannotUseLiteral = true
|
||||
}
|
||||
|
||||
needsQuotation = true
|
||||
}
|
||||
|
||||
if needsQuotation && needsQuoting(k) {
|
||||
cannotUseLiteral = true
|
||||
}
|
||||
|
||||
switch {
|
||||
case cannotUseLiteral:
|
||||
return enc.encodeQuotedString(false, b, k)
|
||||
case needsQuotation:
|
||||
return enc.encodeLiteralString(b, k)
|
||||
default:
|
||||
return enc.encodeUnquotedKey(b, k)
|
||||
}
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeMap(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
|
||||
if v.Type().Key().Kind() != reflect.String {
|
||||
return nil, fmt.Errorf("toml: type %s is not supported as a map key", v.Type().Key().Kind())
|
||||
}
|
||||
|
||||
var (
|
||||
t table
|
||||
emptyValueOptions valueOptions
|
||||
)
|
||||
|
||||
iter := v.MapRange()
|
||||
for iter.Next() {
|
||||
k := iter.Key().String()
|
||||
v := iter.Value()
|
||||
|
||||
if isNil(v) {
|
||||
continue
|
||||
}
|
||||
|
||||
if willConvertToTableOrArrayTable(ctx, v) {
|
||||
t.pushTable(k, v, emptyValueOptions)
|
||||
} else {
|
||||
t.pushKV(k, v, emptyValueOptions)
|
||||
}
|
||||
}
|
||||
|
||||
sortEntriesByKey(t.kvs)
|
||||
sortEntriesByKey(t.tables)
|
||||
|
||||
return enc.encodeTable(b, ctx, t)
|
||||
}
|
||||
|
||||
func sortEntriesByKey(e []entry) {
|
||||
sort.Slice(e, func(i, j int) bool {
|
||||
return e[i].Key < e[j].Key
|
||||
})
|
||||
}
|
||||
|
||||
type entry struct {
|
||||
Key string
|
||||
Value reflect.Value
|
||||
Options valueOptions
|
||||
}
|
||||
|
||||
type table struct {
|
||||
kvs []entry
|
||||
tables []entry
|
||||
}
|
||||
|
||||
func (t *table) pushKV(k string, v reflect.Value, options valueOptions) {
|
||||
for _, e := range t.kvs {
|
||||
if e.Key == k {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
t.kvs = append(t.kvs, entry{Key: k, Value: v, Options: options})
|
||||
}
|
||||
|
||||
func (t *table) pushTable(k string, v reflect.Value, options valueOptions) {
|
||||
for _, e := range t.tables {
|
||||
if e.Key == k {
|
||||
return
|
||||
}
|
||||
}
|
||||
t.tables = append(t.tables, entry{Key: k, Value: v, Options: options})
|
||||
}
|
||||
|
||||
func walkStruct(ctx encoderCtx, t *table, v reflect.Value) {
|
||||
// TODO: cache this
|
||||
typ := v.Type()
|
||||
for i := 0; i < typ.NumField(); i++ {
|
||||
fieldType := typ.Field(i)
|
||||
|
||||
// only consider exported fields
|
||||
if fieldType.PkgPath != "" {
|
||||
continue
|
||||
}
|
||||
|
||||
tag := fieldType.Tag.Get("toml")
|
||||
|
||||
// special field name to skip field
|
||||
if tag == "-" {
|
||||
continue
|
||||
}
|
||||
|
||||
k, opts := parseTag(tag)
|
||||
if !isValidName(k) {
|
||||
k = ""
|
||||
}
|
||||
|
||||
f := v.Field(i)
|
||||
|
||||
if k == "" {
|
||||
if fieldType.Anonymous {
|
||||
if fieldType.Type.Kind() == reflect.Struct {
|
||||
walkStruct(ctx, t, f)
|
||||
}
|
||||
continue
|
||||
} else {
|
||||
k = fieldType.Name
|
||||
}
|
||||
}
|
||||
|
||||
if isNil(f) {
|
||||
continue
|
||||
}
|
||||
|
||||
options := valueOptions{
|
||||
multiline: opts.multiline,
|
||||
omitempty: opts.omitempty,
|
||||
comment: fieldType.Tag.Get("comment"),
|
||||
}
|
||||
|
||||
if opts.inline || !willConvertToTableOrArrayTable(ctx, f) {
|
||||
t.pushKV(k, f, options)
|
||||
} else {
|
||||
t.pushTable(k, f, options)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeStruct(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
|
||||
var t table
|
||||
|
||||
walkStruct(ctx, &t, v)
|
||||
|
||||
return enc.encodeTable(b, ctx, t)
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeComment(indent int, comment string, b []byte) []byte {
|
||||
if comment != "" {
|
||||
b = enc.indent(indent, b)
|
||||
b = append(b, "# "...)
|
||||
b = append(b, comment...)
|
||||
b = append(b, '\n')
|
||||
}
|
||||
return b
|
||||
}
|
||||
|
||||
func isValidName(s string) bool {
|
||||
if s == "" {
|
||||
return false
|
||||
}
|
||||
for _, c := range s {
|
||||
switch {
|
||||
case strings.ContainsRune("!#$%&()*+-./:;<=>?@[]^_{|}~ ", c):
|
||||
// Backslash and quote chars are reserved, but
|
||||
// otherwise any punctuation chars are allowed
|
||||
// in a tag name.
|
||||
case !unicode.IsLetter(c) && !unicode.IsDigit(c):
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
type tagOptions struct {
|
||||
multiline bool
|
||||
inline bool
|
||||
omitempty bool
|
||||
}
|
||||
|
||||
func parseTag(tag string) (string, tagOptions) {
|
||||
opts := tagOptions{}
|
||||
|
||||
idx := strings.Index(tag, ",")
|
||||
if idx == -1 {
|
||||
return tag, opts
|
||||
}
|
||||
|
||||
raw := tag[idx+1:]
|
||||
tag = string(tag[:idx])
|
||||
for raw != "" {
|
||||
var o string
|
||||
i := strings.Index(raw, ",")
|
||||
if i >= 0 {
|
||||
o, raw = raw[:i], raw[i+1:]
|
||||
} else {
|
||||
o, raw = raw, ""
|
||||
}
|
||||
switch o {
|
||||
case "multiline":
|
||||
opts.multiline = true
|
||||
case "inline":
|
||||
opts.inline = true
|
||||
case "omitempty":
|
||||
opts.omitempty = true
|
||||
}
|
||||
}
|
||||
|
||||
return tag, opts
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeTable(b []byte, ctx encoderCtx, t table) ([]byte, error) {
|
||||
var err error
|
||||
|
||||
ctx.shiftKey()
|
||||
|
||||
if ctx.insideKv || (ctx.inline && !ctx.isRoot()) {
|
||||
return enc.encodeTableInline(b, ctx, t)
|
||||
}
|
||||
|
||||
if !ctx.skipTableHeader {
|
||||
b, err = enc.encodeTableHeader(ctx, b)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if enc.indentTables && len(ctx.parentKey) > 0 {
|
||||
ctx.indent++
|
||||
}
|
||||
}
|
||||
ctx.skipTableHeader = false
|
||||
|
||||
for _, kv := range t.kvs {
|
||||
ctx.setKey(kv.Key)
|
||||
|
||||
b, err = enc.encodeKv(b, ctx, kv.Options, kv.Value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
b = append(b, '\n')
|
||||
}
|
||||
|
||||
for _, table := range t.tables {
|
||||
ctx.setKey(table.Key)
|
||||
|
||||
ctx.options = table.Options
|
||||
|
||||
b, err = enc.encode(b, ctx, table.Value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
b = append(b, '\n')
|
||||
}
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeTableInline(b []byte, ctx encoderCtx, t table) ([]byte, error) {
|
||||
var err error
|
||||
|
||||
b = append(b, '{')
|
||||
|
||||
first := true
|
||||
for _, kv := range t.kvs {
|
||||
if first {
|
||||
first = false
|
||||
} else {
|
||||
b = append(b, `, `...)
|
||||
}
|
||||
|
||||
ctx.setKey(kv.Key)
|
||||
|
||||
b, err = enc.encodeKv(b, ctx, kv.Options, kv.Value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if len(t.tables) > 0 {
|
||||
panic("inline table cannot contain nested tables, online key-values")
|
||||
}
|
||||
|
||||
b = append(b, "}"...)
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func willConvertToTable(ctx encoderCtx, v reflect.Value) bool {
|
||||
if !v.IsValid() {
|
||||
return false
|
||||
}
|
||||
if v.Type() == timeType || v.Type().Implements(textMarshalerType) || (v.Kind() != reflect.Ptr && v.CanAddr() && reflect.PtrTo(v.Type()).Implements(textMarshalerType)) {
|
||||
return false
|
||||
}
|
||||
|
||||
t := v.Type()
|
||||
switch t.Kind() {
|
||||
case reflect.Map, reflect.Struct:
|
||||
return !ctx.inline
|
||||
case reflect.Interface:
|
||||
return willConvertToTable(ctx, v.Elem())
|
||||
case reflect.Ptr:
|
||||
if v.IsNil() {
|
||||
return false
|
||||
}
|
||||
|
||||
return willConvertToTable(ctx, v.Elem())
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func willConvertToTableOrArrayTable(ctx encoderCtx, v reflect.Value) bool {
|
||||
if ctx.insideKv {
|
||||
return false
|
||||
}
|
||||
t := v.Type()
|
||||
|
||||
if t.Kind() == reflect.Interface {
|
||||
return willConvertToTableOrArrayTable(ctx, v.Elem())
|
||||
}
|
||||
|
||||
if t.Kind() == reflect.Slice {
|
||||
if v.Len() == 0 {
|
||||
// An empty slice should be a kv = [].
|
||||
return false
|
||||
}
|
||||
|
||||
for i := 0; i < v.Len(); i++ {
|
||||
t := willConvertToTable(ctx, v.Index(i))
|
||||
|
||||
if !t {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
return willConvertToTable(ctx, v)
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeSlice(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
|
||||
if v.Len() == 0 {
|
||||
b = append(b, "[]"...)
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
if willConvertToTableOrArrayTable(ctx, v) {
|
||||
return enc.encodeSliceAsArrayTable(b, ctx, v)
|
||||
}
|
||||
|
||||
return enc.encodeSliceAsArray(b, ctx, v)
|
||||
}
|
||||
|
||||
// caller should have checked that v is a slice that only contains values that
|
||||
// encode into tables.
|
||||
func (enc *Encoder) encodeSliceAsArrayTable(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
|
||||
ctx.shiftKey()
|
||||
|
||||
scratch := make([]byte, 0, 64)
|
||||
scratch = append(scratch, "[["...)
|
||||
|
||||
for i, k := range ctx.parentKey {
|
||||
if i > 0 {
|
||||
scratch = append(scratch, '.')
|
||||
}
|
||||
|
||||
scratch = enc.encodeKey(scratch, k)
|
||||
}
|
||||
|
||||
scratch = append(scratch, "]]\n"...)
|
||||
ctx.skipTableHeader = true
|
||||
|
||||
for i := 0; i < v.Len(); i++ {
|
||||
b = append(b, scratch...)
|
||||
|
||||
var err error
|
||||
b, err = enc.encode(b, ctx, v.Index(i))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (enc *Encoder) encodeSliceAsArray(b []byte, ctx encoderCtx, v reflect.Value) ([]byte, error) {
|
||||
multiline := ctx.options.multiline || enc.arraysMultiline
|
||||
separator := ", "
|
||||
|
||||
b = append(b, '[')
|
||||
|
||||
subCtx := ctx
|
||||
subCtx.options = valueOptions{}
|
||||
|
||||
if multiline {
|
||||
separator = ",\n"
|
||||
|
||||
b = append(b, '\n')
|
||||
|
||||
subCtx.indent++
|
||||
}
|
||||
|
||||
var err error
|
||||
first := true
|
||||
|
||||
for i := 0; i < v.Len(); i++ {
|
||||
if first {
|
||||
first = false
|
||||
} else {
|
||||
b = append(b, separator...)
|
||||
}
|
||||
|
||||
if multiline {
|
||||
b = enc.indent(subCtx.indent, b)
|
||||
}
|
||||
|
||||
b, err = enc.encode(b, subCtx, v.Index(i))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if multiline {
|
||||
b = append(b, '\n')
|
||||
b = enc.indent(ctx.indent, b)
|
||||
}
|
||||
|
||||
b = append(b, ']')
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (enc *Encoder) indent(level int, b []byte) []byte {
|
||||
for i := 0; i < level; i++ {
|
||||
b = append(b, enc.indentSymbol...)
|
||||
}
|
||||
|
||||
return b
|
||||
}
|
||||
Reference in New Issue
Block a user