tinyyarn

commit d8d64ceff29e74f7839b2ad1767c1aeedb803d38
parent 6c6c7a4b6305e34d4c7db6d601705ee20ff0e9cb
Author: Richard Ipsum <richardipsum@fastmail.co.uk>
Date:   Sun,  3 Mar 2019 12:50:32 +0000

Check for duplicate scenarios

Diffstat:
M
tyarn.in
 | 
10
++++++++++

1 file changed, 10 insertions(+), 0 deletions(-)
diff --git a/tyarn.in b/tyarn.in
@@ -424,6 +424,16 @@ if parsed_args["debug"] or DEBUG then
 end
 
 scenario_list, scenarios = parse_scenarios(parsed_args[1])
+seen = {}
+for _, scenario_name in ipairs(scenario_list) do
+    if seen[scenario_name] then
+        io.stderr:write(string.format("Duplicate scenario: '%s'\n", scenario_name))
+        os.exit(1)
+    end
+
+    seen[scenario_name] = true
+end
+
 implementations = parse_implementations(parsed_args[2])
 
 for _, scenario_name in ipairs(scenario_list) do