From 510c049855932bd83f60eb38c59257d0af191b0f Mon Sep 17 00:00:00 2001
From: Thomas Goyne <tg@realm.io>
Date: Mon, 28 Mar 2016 13:48:38 -0700
Subject: [PATCH] Don't run the LV commands at all if fuzzing non-linkview

---
 fuzzer/command_file.cpp | 6 ++++++
 fuzzer/fuzzer.cpp       | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/fuzzer/command_file.cpp b/fuzzer/command_file.cpp
index e3f836ae..7fbde719 100644
--- a/fuzzer/command_file.cpp
+++ b/fuzzer/command_file.cpp
@@ -67,6 +67,7 @@ static void run_commit(RealmState& state)
 
 static void run_lv_insert(RealmState& state, size_t pos, size_t target)
 {
+    if (!state.lv) return;
     if (target < state.table.size() && pos <= state.lv->size()) {
         log("lv insert %zu %zu\n", pos, target);
         state.lv->insert(pos, target);
@@ -75,6 +76,7 @@ static void run_lv_insert(RealmState& state, size_t pos, size_t target)
 
 static void run_lv_set(RealmState& state, size_t pos, size_t target)
 {
+    if (!state.lv) return;
     if (target < state.table.size() && pos < state.lv->size()) {
         log("lv set %zu %zu\n", pos, target);
         // We can't reliably detect self-assignment for verification, so don't do it
@@ -85,6 +87,7 @@ static void run_lv_set(RealmState& state, size_t pos, size_t target)
 
 static void run_lv_move(RealmState& state, size_t from, size_t to)
 {
+    if (!state.lv) return;
     if (from < state.lv->size() && to < state.lv->size()) {
         log("lv move %zu %zu\n", from, to);
         // FIXME: only do the move if it has an effect to avoid getting a
@@ -100,6 +103,7 @@ static void run_lv_move(RealmState& state, size_t from, size_t to)
 
 static void run_lv_swap(RealmState& state, size_t ndx1, size_t ndx2)
 {
+    if (!state.lv) return;
     if (ndx1 < state.lv->size() && ndx2 < state.lv->size()) {
         log("lv swap %zu %zu\n", ndx1, ndx2);
         if (state.lv->get(ndx1).get_index() != state.lv->get(ndx2).get_index()) {
@@ -114,6 +118,7 @@ static void run_lv_swap(RealmState& state, size_t ndx1, size_t ndx2)
 
 static void run_lv_remove(RealmState& state, size_t pos)
 {
+    if (!state.lv) return;
     if (pos < state.lv->size()) {
         log("lv remove %zu\n", pos);
         state.lv->remove(pos);
@@ -122,6 +127,7 @@ static void run_lv_remove(RealmState& state, size_t pos)
 
 static void run_lv_remove_target(RealmState& state, size_t pos)
 {
+    if (!state.lv) return;
     if (pos < state.lv->size()) {
         log("lv target remove %zu\n", pos);
         state.lv->remove_target_row(pos);
diff --git a/fuzzer/fuzzer.cpp b/fuzzer/fuzzer.cpp
index a1cc8fd8..6cd5a7d0 100644
--- a/fuzzer/fuzzer.cpp
+++ b/fuzzer/fuzzer.cpp
@@ -162,7 +162,11 @@ static void test(Realm::Config const& config, SharedRealm& r, SharedRealm& r2, s
         *r2,
         state.coordinator,
         *r2->read_group()->get_table("class_object"),
+#if FUZZ_LINKVIEW
         r2->read_group()->get_table("class_linklist")->get_linklist(0, 0),
+#else
+        {},
+#endif
         state.uid,
         {}
     };