From ab1f4632aaa8017f80c371eded76497832719404 Mon Sep 17 00:00:00 2001
From: Yoichi Hirai <i@yoichihirai.com>
Date: Tue, 11 Oct 2016 00:07:11 +0200
Subject: [PATCH] Chack for non-version pragmas

---
 libsolidity/formal/Why3Translator.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/libsolidity/formal/Why3Translator.cpp b/libsolidity/formal/Why3Translator.cpp
index 8b50600ad..813fa3abe 100644
--- a/libsolidity/formal/Why3Translator.cpp
+++ b/libsolidity/formal/Why3Translator.cpp
@@ -757,8 +757,17 @@ bool Why3Translator::visit(Literal const& _literal)
 	return false;
 }
 
-bool Why3Translator::visit(PragmaDirective const&)
+bool Why3Translator::visit(PragmaDirective const& _pragma)
 {
+	if (_pragma.tokens().empty())
+		error(_pragma, "Not supported");
+	else if (_pragma.literals().empty())
+		error(_pragma, "Not supported");
+	else if (_pragma.literals()[0] != "solidity")
+		error(_pragma, "Not supported");
+	else if (_pragma.tokens()[0] != Token::Identifier)
+		error(_pragma, "A literal 'solidity' is not an identifier.  Strange");
+
 	return false;
 }