stack: Add IsZero

thatguystone · Jan 25, 2024 · 9433315 · 9433315
1 parent 74117e7
commit 9433315
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/callstack/stack.go b/callstack/stack.go
@@ -35,6 +35,11 @@ func GetSkip(skip int) Stack {
 	}
 }
 
+// IsZero determines if this stack is a zero-value
+func (st Stack) IsZero() bool {
+	return len(st.s) == 0
+}
+
 // A shallow wrapper around [runtime.CallersFrames]
 func (st Stack) CallersFrames() *runtime.Frames {
 	return runtime.CallersFrames(st.s)

diff --git a/callstack/stack_test.go b/callstack/stack_test.go
@@ -48,7 +48,10 @@ func TestStackIters(t *testing.T) {
 
 func TestStackString(t *testing.T) {
 	c := check.NewT(t)
-	c.Equal(Stack{}.String(), "")
+
+	var stack Stack
+	c.True(stack.IsZero())
+	c.Equal(stack.String(), "")
 }
 
 func BenchmarkGet(b *testing.B) {