Add a json parser

3 files changed, 61 insertions, 0 deletions

diff --git a/json/profile/cpuprofile.bat b/json/profile/cpuprofile.bat
new file mode 100644
index 0000000..2899eb3
--- /dev/null
+++ b/json/profile/cpuprofile.bat
@@ -0,0 +1,3 @@
+go build
+profile.exe -cpuprofile cpu.out
+go tool pprof --inuse_objects profile.exe cpu.out
diff --git a/json/profile/json.go b/json/profile/json.go
new file mode 100644
index 0000000..b94848b
--- /dev/null
+++ b/json/profile/json.go
@@ -0,0 +1,55 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"runtime"
+	"runtime/pprof"
+
+	"github.com/vektah/goparsify/json"
+)
+
+var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
+var memprofile = flag.String("memprofile", "", "write memory profile to this file")
+
+func main() {
+	flag.Parse()
+	if *cpuprofile != "" {
+		f, err := os.Create(*cpuprofile)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		pprof.StartCPUProfile(f)
+
+		defer func() {
+			pprof.StopCPUProfile()
+			err := f.Close()
+			if err != nil {
+				panic(err)
+			}
+		}()
+	}
+	if *memprofile != "" {
+		runtime.MemProfileRate = 1
+	}
+
+	for i := 0; i < 10000; i++ {
+		_, err := json.Unmarshal(`{"true":true, "false":false, "null": null}`)
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	if *memprofile != "" {
+		f, err := os.Create(*memprofile)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		pprof.WriteHeapProfile(f)
+		f.Close()
+		return
+	}
+}
diff --git a/json/profile/memprofile.bat b/json/profile/memprofile.bat
new file mode 100644
index 0000000..a9c935e
--- /dev/null
+++ b/json/profile/memprofile.bat
@@ -0,0 +1,3 @@
+go build
+profile.exe -memprofile mem.out
+go tool pprof --inuse_objects profile.exe mem.out