feat: add starlark binding

Author: alexeagle

_automation/grammars.json

@@ -237,6 +237,16 @@
     "reference": "v0.19.1",
     "revision": "918f0fb948405181707a1772cab639f2d278d384"
   },
+  {
+    "language": "starlark",
+    "url": "https://github.com/tree-sitter-grammars/tree-sitter-starlark",
+    "files": [
+      "parser.c",
+      "scanner.c"
+    ],
+    "reference": "v1.0.0",
+    "revision": "b31a616aac5d05f927f3f9dd809789db7805b632"
+  },
   {
     "language": "svelte",
     "url": "https://github.com/Himujjal/tree-sitter-svelte",

starlark/binding.go

@@ -0,0 +1,15 @@
+package starlark
+
+//#include "parser.h"
+//TSLanguage *tree_sitter_starlark();
+import "C"
+import (
+	"unsafe"
+
+	sitter "github.com/smacker/go-tree-sitter"
+)
+
+func GetLanguage() *sitter.Language {
+	ptr := unsafe.Pointer(C.tree_sitter_starlark())
+	return sitter.NewLanguage(ptr)
+}

starlark/binding_test.go

@@ -0,0 +1,25 @@
+package starlark_test
+
+import (
+	"context"
+	"testing"
+
+	sitter "github.com/smacker/go-tree-sitter"
+	"github.com/smacker/go-tree-sitter/starlark"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGrammar(t *testing.T) {
+	assert := assert.New(t)
+
+	code := `def myfunc(a):
+	pass
+`
+
+	n, err := sitter.ParseCtx(context.Background(), []byte(code), cue.GetLanguage())
+	assert.NoError(err)
+	assert.Equal(
+		"(source_file (field (label (identifier)) (value (struct_lit (field (label alias: (identifier) (identifier)) (value (string_type))) (field (label alias: (identifier) (simple_string_lit)) (value (bool_type)))))))",
+		n.String(),
+	)
+}