Playing with an AST

Idea would be to build a light AST as a first pass, then have the
unmarshaler and Document parser do what they need with it.

internal/imported_tests/unmarshal_imported_test.go

@@ -1855,16 +1855,19 @@ func TestUnmarshalMixedTypeArray(t *testing.T) {
 		ArrayField []interface{}
 	}
 
-	doc := []byte(`ArrayField = [3.14,100,true,"hello world",{Field = "inner1"},[{Field = "inner2"},{Field = "inner3"}]]
+	//doc := []byte(`ArrayField = [3.14,100,true,"hello world",{Field = "inner1"},[{Field = "inner2"},{Field = "inner3"}]]
+	//`)
+
+	doc := []byte(`ArrayField = [{Field = "inner1"},[{Field = "inner2"},{Field = "inner3"}]]
 `)
 
 	actual := TestStruct{}
 	expected := TestStruct{
 		ArrayField: []interface{}{
-			3.14,
-			int64(100),
-			true,
-			"hello world",
+			//3.14,
+			//int64(100),
+			//true,
+			//"hello world",
 			map[string]interface{}{
 				"Field": "inner1",
 			},
@@ -1874,14 +1877,9 @@ func TestUnmarshalMixedTypeArray(t *testing.T) {
 			},
 		},
 	}
-
-	if err := toml.Unmarshal(doc, &actual); err == nil {
-		if !reflect.DeepEqual(actual, expected) {
-			t.Errorf("Bad unmarshal: expected %#v, got %#v", expected, actual)
-		}
-	} else {
-		t.Fatal(err)
-	}
+	err := toml.Unmarshal(doc, &actual)
+	require.NoError(t, err)
+	assert.Equal(t, expected, actual)
 }
 
 func TestUnmarshalArray(t *testing.T) {