Implement ToMap

tomltree_conversions.go

@@ -114,3 +114,26 @@ func (t *TomlTree) ToString() string {
 	return t.toToml("", "")
 }
 
+// ToMap recursively generates a representation of the current tree using map[string]interface{}.
+func (t *TomlTree) ToMap() map[string]interface{} {
+	result := map[string]interface{}{}
+
+	for k, v := range t.values {
+		switch node := v.(type) {
+		case []*TomlTree:
+			result[k] = make([]interface{}, 0)
+			for _, item := range node {
+				result[k] = item.ToMap()
+			}
+		case *TomlTree:
+			result[k] = node.ToMap()
+		case map[string]interface{}:
+			sub := TreeFromMap(node)
+			result[k] = sub.ToMap()
+		case *tomlValue:
+			result[k] = node.value
+		}
+	}
+
+	return result
+}

tomltree_conversions_test.go

@@ -0,0 +1,60 @@
+package toml
+
+import (
+	"reflect"
+	"testing"
+	"time"
+)
+
+func testMaps(t *testing.T, actual, expected map[string]interface{}) {
+	if !reflect.DeepEqual(actual, expected) {
+		t.Fatal("trees aren't equal.\n", "Expected:\n", expected, "\nActual:\n", actual)
+	}
+}
+
+func TestTomlTreeConversionToMapSimple(t *testing.T) {
+	tree, _ := Load("a = 42\nb = 17")
+
+	expected := map[string]interface{}{
+		"a": int64(42),
+		"b": int64(17),
+	}
+
+	testMaps(t, tree.ToMap(), expected)
+}
+
+func TestTomlTreeConversionToMapExampleFile(t *testing.T) {
+	tree, _ := LoadFile("example.toml")
+	expected := map[string]interface{}{
+		"title": "TOML Example",
+		"owner": map[string]interface{}{
+			"name":         "Tom Preston-Werner",
+			"organization": "GitHub",
+			"bio":          "GitHub Cofounder & CEO\nLikes tater tots and beer.",
+			"dob":          time.Date(1979, time.May, 27, 7, 32, 0, 0, time.UTC),
+		},
+		"database": map[string]interface{}{
+			"server":         "192.168.1.1",
+			"ports":          []interface{}{int64(8001), int64(8001), int64(8002)},
+			"connection_max": int64(5000),
+			"enabled":        true,
+		},
+		"servers": map[string]interface{}{
+			"alpha": map[string]interface{}{
+				"ip": "10.0.0.1",
+				"dc": "eqdc10",
+			},
+			"beta": map[string]interface{}{
+				"ip": "10.0.0.2",
+				"dc": "eqdc10",
+			},
+		},
+		"clients": map[string]interface{}{
+			"data": []interface{}{
+				[]interface{}{"gamma", "delta"},
+				[]interface{}{int64(1), int64(2)},
+			},
+		},
+	}
+	testMaps(t, tree.ToMap(), expected)
+}