Check whether a literal is a valid literal before using it.

Fixes #2078

1 files changed, 24 insertions, 0 deletions

diff --git a/libsolidity/SolidityNameAndTypeResolution.cpp b/libsolidity/SolidityNameAndTypeResolution.cpp
index 1e40ee4f..0f5e4800 100644
--- a/libsolidity/SolidityNameAndTypeResolution.cpp
+++ b/libsolidity/SolidityNameAndTypeResolution.cpp
@@ -2110,6 +2110,30 @@ BOOST_AUTO_TEST_CASE(literal_strings)
 	BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
 }
 
+BOOST_AUTO_TEST_CASE(invalid_integer_literal_fraction)
+{
+	char const* text = R"(
+		contract Foo {
+			function f() {
+				var x = 1.20;
+			}
+		}
+	)";
+	BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
+}
+
+BOOST_AUTO_TEST_CASE(invalid_integer_literal_exp)
+{
+	char const* text = R"(
+		contract Foo {
+			function f() {
+				var x = 1e2;
+			}
+		}
+	)";
+	BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
+}
+
 BOOST_AUTO_TEST_SUITE_END()
 
 }