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authorWim <wim@42.be>2020-08-10 00:29:54 +0200
committerGitHub <noreply@github.com>2020-08-10 00:29:54 +0200
commit4e50fd864921c556988c919269448efdb90fa961 (patch)
treea3625f03f8de3c4f3841364000a4ea3aa42c1533 /vendor/github.com/francoispqt/gojay/decode_stream.go
parentdfdffa0027334e55ce213fc6eb62206dbf48baf6 (diff)
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Use mattermost v5 module (#1192)
Diffstat (limited to 'vendor/github.com/francoispqt/gojay/decode_stream.go')
-rw-r--r--vendor/github.com/francoispqt/gojay/decode_stream.go115
1 files changed, 115 insertions, 0 deletions
diff --git a/vendor/github.com/francoispqt/gojay/decode_stream.go b/vendor/github.com/francoispqt/gojay/decode_stream.go
new file mode 100644
index 00000000..74beee4d
--- /dev/null
+++ b/vendor/github.com/francoispqt/gojay/decode_stream.go
@@ -0,0 +1,115 @@
+package gojay
+
+import (
+ "sync"
+ "time"
+)
+
+// UnmarshalerStream is the interface to implement for a slice, an array or a slice
+// to decode a line delimited JSON to.
+type UnmarshalerStream interface {
+ UnmarshalStream(*StreamDecoder) error
+}
+
+// Stream is a struct holding the Stream api
+var Stream = stream{}
+
+type stream struct{}
+
+// A StreamDecoder reads and decodes JSON values from an input stream.
+//
+// It implements conext.Context and provide a channel to notify interruption.
+type StreamDecoder struct {
+ mux sync.RWMutex
+ *Decoder
+ done chan struct{}
+ deadline *time.Time
+}
+
+// DecodeStream reads the next line delimited JSON-encoded value from the decoder's input (io.Reader) and stores it in the value pointed to by c.
+//
+// c must implement UnmarshalerStream. Ideally c is a channel. See example for implementation.
+//
+// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
+func (dec *StreamDecoder) DecodeStream(c UnmarshalerStream) error {
+ if dec.isPooled == 1 {
+ panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
+ }
+ if dec.r == nil {
+ dec.err = NoReaderError("No reader given to decode stream")
+ close(dec.done)
+ return dec.err
+ }
+ for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+ switch dec.data[dec.cursor] {
+ case ' ', '\n', '\t', '\r', ',':
+ continue
+ default:
+ // char is not space start reading
+ for dec.nextChar() != 0 {
+ // calling unmarshal stream
+ err := c.UnmarshalStream(dec)
+ if err != nil {
+ dec.err = err
+ close(dec.done)
+ return err
+ }
+ // garbage collects buffer
+ // we don't want the buffer to grow extensively
+ dec.data = dec.data[dec.cursor:]
+ dec.length = dec.length - dec.cursor
+ dec.cursor = 0
+ }
+ // close the done channel to signal the end of the job
+ close(dec.done)
+ return nil
+ }
+ }
+ close(dec.done)
+ dec.mux.Lock()
+ err := dec.raiseInvalidJSONErr(dec.cursor)
+ dec.mux.Unlock()
+ return err
+}
+
+// context.Context implementation
+
+// Done returns a channel that's closed when work is done.
+// It implements context.Context
+func (dec *StreamDecoder) Done() <-chan struct{} {
+ return dec.done
+}
+
+// Deadline returns the time when work done on behalf of this context
+// should be canceled. Deadline returns ok==false when no deadline is
+// set. Successive calls to Deadline return the same results.
+func (dec *StreamDecoder) Deadline() (time.Time, bool) {
+ if dec.deadline != nil {
+ return *dec.deadline, true
+ }
+ return time.Time{}, false
+}
+
+// SetDeadline sets the deadline
+func (dec *StreamDecoder) SetDeadline(t time.Time) {
+ dec.deadline = &t
+}
+
+// Err returns nil if Done is not yet closed.
+// If Done is closed, Err returns a non-nil error explaining why.
+// It implements context.Context
+func (dec *StreamDecoder) Err() error {
+ select {
+ case <-dec.done:
+ dec.mux.RLock()
+ defer dec.mux.RUnlock()
+ return dec.err
+ default:
+ return nil
+ }
+}
+
+// Value implements context.Context
+func (dec *StreamDecoder) Value(key interface{}) interface{} {
+ return nil
+}