From 224366e2c668784952ab613c7640d7017ce60990 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Mon, 23 Oct 2023 21:05:55 +0200
Subject: Flush command

Changelog: Add 'flush' command
---
 src/Parser/Statement.hs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/Parser')

diff --git a/src/Parser/Statement.hs b/src/Parser/Statement.hs
index e58779b..732f417 100644
--- a/src/Parser/Statement.hs
+++ b/src/Parser/Statement.hs
@@ -106,6 +106,13 @@ instance ParamType a => ParamType [a] where
     paramDefault _ = return []
     paramFromSomeExpr _ se@(SomeExpr e) = cast e <|> ((:[]) <$> paramFromSomeExpr @a Proxy se)
 
+instance ParamType a => ParamType (Maybe a) where
+    type ParamRep (Maybe a) = Maybe (ParamRep a)
+    parseParam _ = Just <$> parseParam @a Proxy
+    showParamType _ = showParamType @a Proxy
+    paramDefault _ = return Nothing
+    paramFromSomeExpr _ se = Just <$> paramFromSomeExpr @a Proxy se
+
 instance (ParamType a, ParamType b) => ParamType (Either a b) where
     type ParamRep (Either a b) = Either (ParamRep a) (ParamRep b)
     parseParam _ = try (Left <$> parseParam @a Proxy) <|> (Right <$> parseParam @b Proxy)
@@ -289,6 +296,11 @@ testExpect = command "expect" $ Expect
     <*> param "capture"
     <*> innerBlock
 
+testFlush :: TestParser [TestStep]
+testFlush = command "flush" $ Flush
+    <$> paramOrContext "from"
+    <*> param ""
+
 testGuard :: TestParser [TestStep]
 testGuard = command "guard" $ Guard
     <$> cmdLine
@@ -344,6 +356,7 @@ testStep = choice
     , testSpawn
     , testSend
     , testExpect
+    , testFlush
     , testGuard
     , testDisconnectNode
     , testDisconnectNodes
-- 
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