Merge pull request #2 from stevenh/fix/lua-close

fix: lua close

binder.go

@@ -1,8 +1,9 @@
 package binder
 
 import (
-	"github.com/yuin/gopher-lua"
 	"io/ioutil"
+
+	lua "github.com/yuin/gopher-lua"
 )
 
 // Handler is binder function handler
@@ -20,6 +21,12 @@ func (b *Binder) Load(loader *Loader) {
 	b.loaders = append(b.loaders, loader)
 }
 
+// Close closes the binder.
+// It should be called after the binder is not needed any more.
+func (b *Binder) Close() {
+	b.state.Close()
+}
+
 // DoString runs lua script string
 func (b *Binder) DoString(s string) error {
 	b.load()
@@ -59,7 +66,8 @@ func (b *Binder) load() {
 	}
 }
 
-// New returns new binder instance
+// New returns new binder instance.
+// The caller should call [Binder.Close] when the binder is no longer needed.
 func New(opts ...Options) *Binder {
 	options := []lua.Options{}
 
@@ -75,7 +83,6 @@ func New(opts ...Options) *Binder {
 	}
 
 	s := lua.NewState(options...)
-	defer s.Close()
 
 	if len(opts) > 0 && opts[0].SkipOpenLibs {
 		type lib struct {

go.mod

@@ -3,15 +3,14 @@ module github.com/krakendio/binder
 go 1.18
 
 require (
-	github.com/alecthomas/chroma v0.6.3
-	github.com/fatih/color v1.7.0
-	github.com/yuin/gopher-lua v0.0.0-20190206043414-8bfc7677f583
+	github.com/alecthomas/chroma v0.10.0
+	github.com/fatih/color v1.17.0
+	github.com/yuin/gopher-lua v1.1.1
 )
 
 require (
-	github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 // indirect
-	github.com/dlclark/regexp2 v1.1.6 // indirect
-	github.com/mattn/go-colorable v0.0.9 // indirect
-	github.com/mattn/go-isatty v0.0.4 // indirect
-	golang.org/x/sys v0.0.0-20190204203706-41f3e6584952 // indirect
+	github.com/dlclark/regexp2 v1.11.4 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	golang.org/x/sys v0.25.0 // indirect
 )

go.sum

@@ -1,32 +1,29 @@
-github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38 h1:smF2tmSOzy2Mm+0dGI2AIUHY+w0BUc+4tn40djz7+6U=
-github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38/go.mod h1:r7bzyVFMNntcxPZXK3/+KdruV1H5KSlyVY0gc+NgInI=
-github.com/alecthomas/chroma v0.6.3 h1:8H1D0yddf0mvgvO4JDBKnzLd9ERmzzAijBxnZXGV/FA=
-github.com/alecthomas/chroma v0.6.3/go.mod h1:quT2EpvJNqkuPi6DmBHB+E33FXBgBBPzyH5++Dn1LPc=
-github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721 h1:JHZL0hZKJ1VENNfmXvHbgYlbUOvpzYzvy2aZU5gXVeo=
-github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721/go.mod h1:QO9JBoKquHd+jz9nshCh40fOfO+JzsoXy8qTHF68zU0=
-github.com/alecthomas/kong v0.1.15/go.mod h1:0m2VYms8rH0qbCqVB2gvGHk74bqLIq0HXjCs5bNbNQU=
-github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
-github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
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+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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-github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
-github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
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