add favicon

go/deferpanicrecover/main.go

@@ -8,7 +8,7 @@ func c() (i int) {
 }
 
 func f() {
-	deferfunc() {
+	defer func() {
 		if r := recover(); r != nil {
 			fmt.Println("Recovered in f", r)
 		}

go/displayimage/main.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"image"
+	"image/png"
+)
+
+var favicon = []byte{
+	0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00,
+	0x10, 0x00, 0x00, 0x00, 0x0f, 0x04, 0x03, 0x00, 0x00, 0x00, 0x1f, 0x5d, 0x52, 0x1c, 0x00, 0x00, 0x00, 0x0f, 0x50,
+	0x4c, 0x54, 0x45, 0x7a, 0xdf, 0xfd, 0xfd, 0xff, 0xfc, 0x39, 0x4d, 0x52, 0x19, 0x16, 0x15, 0xc3, 0x8d, 0x76, 0xc7,
+	0x36, 0x2c, 0xf5, 0x00, 0x00, 0x00, 0x40, 0x49, 0x44, 0x41, 0x54, 0x08, 0xd7, 0x95, 0xc9, 0xd1, 0x0d, 0xc0, 0x20,
+	0x0c, 0x03, 0xd1, 0x23, 0x5d, 0xa0, 0x49, 0x17, 0x20, 0x4c, 0xc0, 0x10, 0xec, 0x3f, 0x53, 0x8d, 0xc2, 0x02, 0x9c,
+	0xfc, 0xf1, 0x24, 0xe3, 0x31, 0x54, 0x3a, 0xd1, 0x51, 0x96, 0x74, 0x1c, 0xcd, 0x18, 0xed, 0x9b, 0x9a, 0x11, 0x85,
+	0x24, 0xea, 0xda, 0xe0, 0x99, 0x14, 0xd6, 0x3a, 0x68, 0x6f, 0x41, 0xdd, 0xe2, 0x07, 0xdb, 0xb5, 0x05, 0xca, 0xdb,
+	0xb2, 0x9a, 0xdd, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
+}
+
+// displayImage renders an image to the playground's console by
+// base64-encoding the encoded image and printing it to stdout
+// with the prefix "IMAGE:".
+func displayImage(m image.Image) {
+	var buf bytes.Buffer
+	err := png.Encode(&buf, m)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("IMAGE:" + base64.StdEncoding.EncodeToString(buf.Bytes()))
+}
+
+func main() {
+	m, err := png.Decode(bytes.NewReader(favicon))
+	if err != nil {
+		panic(err)
+	}
+	displayImage(m)
+}