From cbf3b6d4a56a89ed5f53c944db6b3065770d43a7 Mon Sep 17 00:00:00 2001
From: Jan Travnicek <Jan.Travnicek@fit.cvut.cz>
Date: Thu, 19 Mar 2020 11:48:30 +0100
Subject: [PATCH] fix error reporting when printing void
---
alib2cli/src/ast/command/PrintCommand.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/alib2cli/src/ast/command/PrintCommand.h b/alib2cli/src/ast/command/PrintCommand.h
index 3266f095af..d2c3350f00 100644
--- a/alib2cli/src/ast/command/PrintCommand.h
+++ b/alib2cli/src/ast/command/PrintCommand.h
@@ -20,6 +20,9 @@ public:
CommandResult run ( Environment & environment ) const override {
std::shared_ptr < abstraction::Value > value = m_expr->translateAndEval ( environment );
+ if ( value->getType ( ) == std::string ( ext::to_string < void > ( ) ) )
+ throw std::invalid_argument ( "Printing void is not allowed." );
+
std::shared_ptr < abstraction::OperationAbstraction > res = abstraction::Registry::getValuePrinterAbstraction ( value->getType ( ) );
res->attachInput ( value, 0 );
--
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