Made accessors work with struct pointers

Author: Knetic

dummies_test.go

@@ -39,19 +39,27 @@ func (this dummyNestedParameter) Dunk(arg1 string) string {
 	return arg1 + "dunk"
 }
 
+var dummyParameterInstance = dummyParameter {
+	String: "string!",
+	Int: 101,
+	BoolFalse: false,
+	Nil: nil,
+	Nested: dummyNestedParameter {
+		Funk: "funkalicious",
+	},
+}
+
 var fooParameter = EvaluationParameter {
 	Name: "foo",
-	Value: dummyParameter {
-		String: "string!",
-		Int: 101,
-		BoolFalse: false,
-		Nil: nil,
-		Nested: dummyNestedParameter {
-			Funk: "funkalicious",
-		},
-	},
+	Value: dummyParameterInstance,
+}
+
+var fooPtrParameter = EvaluationParameter {
+	Name: "fooptr",
+	Value: &dummyParameterInstance,
 }
 
-var fooFailureParameters map[string]interface{} = map[string]interface{} {
+var fooFailureParameters = map[string]interface{} {
 	"foo": fooParameter.Value,
+	"fooptr": &fooPtrParameter.Value,
 }

evaluationStage.go

@@ -274,6 +274,12 @@ func makeAccessorStage(pair []string) evaluationOperator {
 		for i := 1; i < len(pair); i++ {
 
 			coreValue := reflect.ValueOf(value)
+
+			// if this is a pointer, resolve it.
+			if coreValue.Kind() == reflect.Ptr {
+				coreValue = coreValue.Elem()
+			}
+
 			if coreValue.Kind() != reflect.Struct {
 				return nil, errors.New("Unable to access '"+pair[i]+"', '"+pair[i-1]+"' is not a struct");
 			}

evaluation_test.go

@@ -1286,6 +1286,20 @@ func TestParameterizedEvaluation(test *testing.T) {
 			Parameters: []EvaluationParameter{fooParameter},
 			Expected: "funk",
 		},
+		EvaluationTest{
+
+			Name:  "Simple parameter call from pointer",
+			Input: "fooptr.String",
+			Parameters: []EvaluationParameter{fooPtrParameter},
+			Expected: fooParameter.Value.(dummyParameter).String,
+		},
+		EvaluationTest{
+
+			Name:  "Simple parameter function call from pointer",
+			Input: "fooptr.Func()",
+			Parameters: []EvaluationParameter{fooPtrParameter},
+			Expected: "funk",
+		},
 		EvaluationTest{
 
 			Name:  "Simple parameter call",