hclsyntax: Add benchmark for LexConfig

1 files changed, 18 insertions, 0 deletions

diff --git a/hclsyntax/public_test.go b/hclsyntax/public_test.go
index 6280998..596b1a2 100644
--- a/hclsyntax/public_test.go
+++ b/hclsyntax/public_test.go
@@ -2,6 +2,8 @@ package hclsyntax
 
 import (
 	"testing"
+
+	"github.com/hashicorp/hcl/v2"
 )
 
 func TestValidIdentifier(t *testing.T) {
@@ -44,3 +46,19 @@ func TestValidIdentifier(t *testing.T) {
 		})
 	}
 }
+
+var T Tokens
+
+func BenchmarkLexConfig(b *testing.B) {
+	src := []byte("module \"once\" {\n  source = \"../modules/foo\"\n}\n\nmodule \"twice\" {\n  source = \"../modules/foo\"\n}\n")
+	filename := "testdata/dave/main.tf"
+	start := hcl.Pos{Line: 1, Column: 1, Byte: 0}
+
+	var tokens Tokens
+
+	for i := 0; i < b.N; i++ {
+		tokens, _ = LexConfig(src, filename, start)
+	}
+
+	T = tokens
+}