Merge remote-tracking branch 'origin/trunk' into builtins-list-take-last

compiler/builtins/bitcode/src/list.zig

@@ -1361,3 +1361,39 @@ inline fn listSetImmutable(
     //return list;
     return new_bytes;
 }
+
+pub fn listFindUnsafe(
+    list: RocList,
+    caller: Caller1,
+    data: Opaque,
+    inc_n_data: IncN,
+    data_is_owned: bool,
+    alignment: u32,
+    element_width: usize,
+    inc: Inc,
+    dec: Dec,
+) callconv(.C) extern struct { value: Opaque, found: bool } {
+    if (list.bytes) |source_ptr| {
+        const size = list.len();
+        if (data_is_owned) {
+            inc_n_data(data, size);
+        }
+
+        var i: usize = 0;
+        while (i < size) : (i += 1) {
+            var theOne = false;
+            const element = source_ptr + (i * element_width);
+            inc(element);
+            caller(data, element, @ptrCast(?[*]u8, &theOne));
+
+            if (theOne) {
+                return .{ .value = element, .found = true };
+            } else {
+                dec(element);
+            }
+        }
+        return .{ .value = null, .found = false };
+    } else {
+        return .{ .value = null, .found = false };
+    }
+}