optimizations

internal/vm/vm_test.go

@@ -713,12 +713,10 @@ func TestBuiltinFunctions(t *testing.T) {
 		{`len("hello world")`, 11},
 		{
 			`len(1)`,
-			&object.Error{
-				Message: "TypeError: object of type 'int' has no len()",
-			},
+			fmt.Errorf("TypeError: object of type 'int' has no len()"),
 		},
 		{`len("one", "two")`,
-			&object.Error{
+			object.Error{
 				Message: "TypeError: len() takes exactly 1 argument (2 given)",
 			},
 		},
@@ -728,14 +726,14 @@ func TestBuiltinFunctions(t *testing.T) {
 		{`first([1, 2, 3])`, 1},
 		{`first([])`, object.NULL},
 		{`first(1)`,
-			&object.Error{
+			object.Error{
 				Message: "TypeError: first() expected argument #1 to be `array` got `int`",
 			},
 		},
 		{`last([1, 2, 3])`, 3},
 		{`last([])`, object.NULL},
 		{`last(1)`,
-			&object.Error{
+			object.Error{
 				Message: "TypeError: last() expected argument #1 to be `array` got `int`",
 			},
 		},
@@ -743,12 +741,12 @@ func TestBuiltinFunctions(t *testing.T) {
 		{`rest([])`, []int{}},
 		{`push([], 1)`, []int{1}},
 		{`push(1, 1)`,
-			&object.Error{
+			object.Error{
 				Message: "TypeError: push() expected argument #1 to be `array` got `int`",
 			},
 		},
 		{`input()`, ""},
-		{`pop([])`, &object.Error{
+		{`pop([])`, object.Error{
 			Message: "IndexError: pop from an empty array",
 		},
 		},