From 182ad7605048a24cd37115b7157b8a4436d9ea17 Mon Sep 17 00:00:00 2001
From: Josh Baker <joshbaker77@gmail.com>
Date: Fri, 1 Dec 2017 14:13:24 -0700
Subject: [PATCH] Array() from null becomes zero length Go array

fixes #53
---
 gjson.go      |  6 +++---
 gjson_test.go | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/gjson.go b/gjson.go
index e16a4b7..574432d 100644
--- a/gjson.go
+++ b/gjson.go
@@ -177,8 +177,8 @@ func (t Result) Time() time.Time {
 // If the result represents a non-existent value, then an empty array will be returned.
 // If the result is not a JSON array, the return value will be an array containing one result.
 func (t Result) Array() []Result {
-	if !t.Exists() {
-		return nil
+	if t.Type == Null {
+		return []Result{}
 	}
 	if t.Type != JSON {
 		return []Result{t}
@@ -192,7 +192,7 @@ func (t Result) IsObject() bool {
 	return t.Type == JSON && len(t.Raw) > 0 && t.Raw[0] == '{'
 }
 
-// IsObject returns true if the result value is a JSON array.
+// IsArray returns true if the result value is a JSON array.
 func (t Result) IsArray() bool {
 	return t.Type == JSON && len(t.Raw) > 0 && t.Raw[0] == '['
 }
diff --git a/gjson_test.go b/gjson_test.go
index 12cb244..283760a 100644
--- a/gjson_test.go
+++ b/gjson_test.go
@@ -1110,3 +1110,22 @@ func TestResultRawForLiteral(t *testing.T) {
 		}
 	}
 }
+
+func TestNullArray(t *testing.T) {
+	n := len(Get(`{"data":null}`, "data").Array())
+	if n != 0 {
+		t.Fatalf("expected '%v', got '%v'", 0, n)
+	}
+	n = len(Get(`{}`, "data").Array())
+	if n != 0 {
+		t.Fatalf("expected '%v', got '%v'", 0, n)
+	}
+	n = len(Get(`{"data":[]}`, "data").Array())
+	if n != 0 {
+		t.Fatalf("expected '%v', got '%v'", 0, n)
+	}
+	n = len(Get(`{"data":[null]}`, "data").Array())
+	if n != 1 {
+		t.Fatalf("expected '%v', got '%v'", 1, n)
+	}
+}