From ab3d1b024db6e208e4b63e2ecb07754af1540d6f Mon Sep 17 00:00:00 2001
From: Yoichi Hirai <i@yoichihirai.com>
Date: Fri, 14 Oct 2016 17:32:13 +0200
Subject: Add tests around calling functions returning functions returning
 functions

---
 test/libsolidity/SolidityEndToEndTest.cpp | 30 ++++++++++++++++++++++++++++++
 test/libsolidity/SolidityParser.cpp       | 15 +++++++++++++++
 2 files changed, 45 insertions(+)

(limited to 'test/libsolidity')

diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index b1529f8f..79dfd90e 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -7721,6 +7721,36 @@ BOOST_AUTO_TEST_CASE(function_type_library_internal)
 }
 
 
+BOOST_AUTO_TEST_CASE(call_function_returning_function)
+{
+	char const* sourceCode = R"(
+		contract test {
+			function f0() returns (uint) {
+				return 2;
+			}
+			function f1() returns (function() returns (uint)) {
+				returns f0;
+			}
+			function f2() returns (function() returns (function () returns (uint))) {
+				returns f1;
+			}
+			function f3() returns (function() returns (function () returns (function () returns (uint))))
+			{
+				returns f2;
+			}
+			function f() returns (uint) {
+				function() returns(function() returns(function() returns(function() returns(uint)))) x;
+				x = f3;
+				return x()()()();
+			}
+		}
+	)";
+
+	compileAndRun(sourceCode, 0, "C");
+	BOOST_CHECK(callContractFunction("f()") == encodeArgs(u256(2)));
+}
+
+
 // TODO: arrays, libraries with external functions
 
 BOOST_AUTO_TEST_CASE(shift_constant_left)
diff --git a/test/libsolidity/SolidityParser.cpp b/test/libsolidity/SolidityParser.cpp
index 496f4703..d8c6fa10 100644
--- a/test/libsolidity/SolidityParser.cpp
+++ b/test/libsolidity/SolidityParser.cpp
@@ -1311,6 +1311,21 @@ BOOST_AUTO_TEST_CASE(function_type_as_parameter)
 	BOOST_CHECK(successParse(text));
 }
 
+BOOST_AUTO_TEST_CASE(calling_function)
+{
+	char const* text = R"(
+		contract test {
+			function f() {
+				function() returns(function() returns(function() returns(function() returns(uint)))) x;
+				uint y;
+				y = x()()()();
+			}
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
+
 BOOST_AUTO_TEST_SUITE_END()
 
 }
-- 
cgit