From 783441b1d36c18c22015d283045a38bb108390ba Mon Sep 17 00:00:00 2001
From: Nathan Craddock <nzcraddock@gmail.com>
Date: Tue, 15 Mar 2022 13:28:37 -0600
Subject: [PATCH] fix: missing null check

The name was used assuming it was not null, so using the --plain option
would crash before this. Caught in telescope-zf-native.nvim.
---
 src/filter.zig | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/filter.zig b/src/filter.zig
index da65d2d..01324ca 100644
--- a/src/filter.zig
+++ b/src/filter.zig
@@ -191,16 +191,20 @@ pub fn rankToken(
 ) ?f64 {
     // iterate over the indexes where the first char of the token matches
     var best_rank: ?f64 = null;
-    var it = IndexIterator.init(name.?, token[0], smart_case);
-
-    const offs = str.len - name.?.len;
-    while (it.next()) |start_index| {
-        if (scanToEnd(name.?, token[1..], start_index, smart_case)) |match| {
-            if (best_rank == null or match.rank < best_rank.?) {
-                best_rank = match.rank;
-                range.* = .{ .start = match.start + offs, .end = match.end + offs };
-            }
-        } else break;
+
+    var it: IndexIterator = undefined;
+    if (name != null) {
+        it = IndexIterator.init(name.?, token[0], smart_case);
+        const offs = str.len - name.?.len;
+
+        while (it.next()) |start_index| {
+            if (scanToEnd(name.?, token[1..], start_index, smart_case)) |match| {
+                if (best_rank == null or match.rank < best_rank.?) {
+                    best_rank = match.rank;
+                    range.* = .{ .start = match.start + offs, .end = match.end + offs };
+                }
+            } else break;
+        }
     }
 
     if (best_rank != null) {