From 388af45637a30350df8cc3df86f410b74a2a6acf Mon Sep 17 00:00:00 2001
From: Masayuki Morita <minamijoyo@gmail.com>
Date: Tue, 10 Sep 2019 05:16:13 +0900
Subject: [PATCH] hclwrite: Unquoted label should be parsed as *identifier

---
 hclwrite/parser.go      |  7 +++-
 hclwrite/parser_test.go | 78 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+), 1 deletion(-)

diff --git a/hclwrite/parser.go b/hclwrite/parser.go
index 1876818..0e8952d 100644
--- a/hclwrite/parser.go
+++ b/hclwrite/parser.go
@@ -307,7 +307,12 @@ func parseBlock(nativeBlock *hclsyntax.Block, from, leadComments, lineComments,
 		before, labelTokens, from = from.Partition(rng)
 		children.AppendUnstructuredTokens(before.Tokens())
 		tokens := labelTokens.Tokens()
-		ln := newNode(newQuoted(tokens))
+		var ln *node
+		if len(tokens) == 1 && tokens[0].Type == hclsyntax.TokenIdent {
+			ln = newNode(newIdentifier(tokens[0]))
+		} else {
+			ln = newNode(newQuoted(tokens))
+		}
 		block.labels.Add(ln)
 		children.AppendNode(ln)
 	}
diff --git a/hclwrite/parser_test.go b/hclwrite/parser_test.go
index e8f8fc9..f40b1e4 100644
--- a/hclwrite/parser_test.go
+++ b/hclwrite/parser_test.go
@@ -224,6 +224,84 @@ func TestParse(t *testing.T) {
 				},
 			},
 		},
+		{
+			"b label {}\n",
+			TestTreeNode{
+				Type: "Body",
+				Children: []TestTreeNode{
+					{
+						Type: "Block",
+						Children: []TestTreeNode{
+							{
+								Type: "comments",
+							},
+							{
+								Type: "identifier",
+								Val:  "b",
+							},
+							{
+								Type: "identifier",
+								Val:  ` label`,
+							},
+							{
+								Type: "Tokens",
+								Val:  " {",
+							},
+							{
+								Type: "Body",
+							},
+							{
+								Type: "Tokens",
+								Val:  "}",
+							},
+							{
+								Type: "Tokens",
+								Val:  "\n",
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			"b \"label\" {}\n",
+			TestTreeNode{
+				Type: "Body",
+				Children: []TestTreeNode{
+					{
+						Type: "Block",
+						Children: []TestTreeNode{
+							{
+								Type: "comments",
+							},
+							{
+								Type: "identifier",
+								Val:  "b",
+							},
+							{
+								Type: "quoted",
+								Val:  ` "label"`,
+							},
+							{
+								Type: "Tokens",
+								Val:  " {",
+							},
+							{
+								Type: "Body",
+							},
+							{
+								Type: "Tokens",
+								Val:  "}",
+							},
+							{
+								Type: "Tokens",
+								Val:  "\n",
+							},
+						},
+					},
+				},
+			},
+		},
 		{
 			"b {\n  a = 1\n}\n",
 			TestTreeNode{