feat(comment): add comment on a struct field

spec/fixtures/comment/many_structs_fields_input.go

@@ -0,0 +1,18 @@
+package main
+
+type (
+	TestOne struct {
+		Asdf string
+		ID   int
+	}
+
+	TestTwo struct {
+		Fesa int
+		A    bool
+	}
+
+	TestThree struct {
+		Asufj int
+		Fs    string
+	}
+)

spec/fixtures/comment/many_structs_fields_output.go

@@ -0,0 +1,19 @@
+package main
+
+type (
+	TestOne struct {
+		Asdf string
+		ID   int
+	}
+
+	TestTwo struct {
+		// Fesa 
+		Fesa int
+		A    bool
+	}
+
+	TestThree struct {
+		Asufj int
+		Fs    string
+	}
+)

spec/fixtures/comment/struct_fields_input.go

@@ -0,0 +1,7 @@
+package main
+
+type CommentStruct struct {
+	Name    string
+	Address string
+	Aliases []string
+}

spec/fixtures/comment/struct_fields_output.go

@@ -0,0 +1,8 @@
+package main
+
+type CommentStruct struct {
+	Name    string
+	// Address 
+	Address string
+	Aliases []string
+}

spec/fixtures/comment/var_struct_fields_input.go

@@ -0,0 +1,8 @@
+package main
+
+func main() {
+	var s struct {
+		API string
+		Key string
+	}
+}

spec/fixtures/comment/var_struct_fields_output.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	var s struct {
+		API string
+		// Key 
+		Key string
+	}
+}

spec/integration/comment_test.lua

@@ -18,6 +18,18 @@ comment["should add comment to struct"] = function()
   do_the_test("struct", { 4, 1 })
 end
 
+comment["should add a comment on struct field"] = function()
+  do_the_test("struct_fields", { 5, 8 })
+end
+
+comment["should add a comment on var struct field"] = function()
+  do_the_test("var_struct_fields", { 6, 4 })
+end
+
+comment["should add a comment on one field of many structs"] = function()
+  do_the_test("many_structs_fields", { 10, 4 })
+end
+
 comment["should add comment to function"] = function()
   do_the_test("func", { 3, 1 })
 end