Function types.

3 files changed, 118 insertions, 0 deletions

diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index d8924250..c9097663 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -7606,6 +7606,24 @@ BOOST_AUTO_TEST_CASE(mem_resize_is_not_paid_at_call)
 	BOOST_CHECK(callContractFunction("f(address)", cAddrOpt) == encodeArgs(u256(7)));
 }
 
+BOOST_AUTO_TEST_CASE(pass_function_types_internally)
+{
+	char const* sourceCode = R"(
+		contract C {
+			function f(uint x) returns (uint) {
+				return eval(g, x);
+			}
+			function eval(function(uint) returns (uint) x, uint a) returns (uint) {
+				return x(a);
+			}
+			function g(uint x) returns (uint) { return x + 1; }
+		}
+	)";
+
+	compileAndRun(sourceCode, 0, "C");
+	BOOST_CHECK(callContractFunction("f(uint256)", 7) == encodeArgs(u256(8)));
+}
+
 BOOST_AUTO_TEST_CASE(shift_constant_left)
 {
 	char const* sourceCode = R"(
diff --git a/test/libsolidity/SolidityNameAndTypeResolution.cpp b/test/libsolidity/SolidityNameAndTypeResolution.cpp
index f498a0b9..7f12cd86 100644
--- a/test/libsolidity/SolidityNameAndTypeResolution.cpp
+++ b/test/libsolidity/SolidityNameAndTypeResolution.cpp
@@ -4132,6 +4132,55 @@ BOOST_AUTO_TEST_CASE(using_directive_for_missing_selftype)
 	BOOST_CHECK(expectError(text, false) == Error::Type::TypeError);
 }
 
+BOOST_AUTO_TEST_CASE(function_type)
+{
+	char const* text = R"(
+		contract C {
+			function f() {
+				function(uint) returns (uint) x;
+			}
+		}
+	)";
+	BOOST_CHECK(success(text));
+}
+
+BOOST_AUTO_TEST_CASE(function_type_parameter)
+{
+	char const* text = R"(
+		contract C {
+			function f(function(uint) returns (uint) g) returns (function(uint) returns (uint)) {
+				return g;
+			}
+		}
+	)";
+	BOOST_CHECK(success(text));
+}
+
+BOOST_AUTO_TEST_CASE(private_function_type)
+{
+	char const* text = R"(
+		contract C {
+			function f() {
+				function(uint) private returns (uint) x;
+			}
+		}
+	)";
+	BOOST_CHECK(expectError(text) == Error::Type::TypeError);
+}
+
+BOOST_AUTO_TEST_CASE(public_function_type)
+{
+	char const* text = R"(
+		contract C {
+			function f() {
+				function(uint) public returns (uint) x;
+			}
+		}
+	)";
+	BOOST_CHECK(expectError(text) == Error::Type::TypeError);
+}
+
+
 BOOST_AUTO_TEST_CASE(invalid_fixed_point_literal)
 {
 	char const* text = R"(
diff --git a/test/libsolidity/SolidityParser.cpp b/test/libsolidity/SolidityParser.cpp
index ec23d5fd..69b8d0f0 100644
--- a/test/libsolidity/SolidityParser.cpp
+++ b/test/libsolidity/SolidityParser.cpp
@@ -1241,6 +1241,57 @@ BOOST_AUTO_TEST_CASE(payable_accessor)
 	BOOST_CHECK(!successParse(text));
 }
 
+BOOST_AUTO_TEST_CASE(function_type_in_expression)
+{
+	char const* text = R"(
+		contract test {
+			function f(uint x, uint y) returns (uint a) {}
+			function g() {
+				function (uint, uint) internal returns (uint) f1 = f;
+			}
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
+BOOST_AUTO_TEST_CASE(function_type_as_storage_variable)
+{
+	// TODO disambiguate from fallback function
+	char const* text = R"(
+		contract test {
+			function f(uint x, uint y) returns (uint a) {}
+			function (uint, uint) internal returns (uint) f1 = f;
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
+BOOST_AUTO_TEST_CASE(function_type_in_struct)
+{
+	char const* text = R"(
+		contract test {
+			struct S {
+				function (uint x, uint y) internal returns (uint a) f;
+				function (uint, uint) external returns (uint) g;
+				uint d;
+			}
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
+BOOST_AUTO_TEST_CASE(function_type_as_parameter)
+{
+	char const* text = R"(
+		contract test {
+			function f(function(uint) external returns (uint) g) internal returns (uint a) {
+				return g(1);
+			}
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
 BOOST_AUTO_TEST_SUITE_END()
 
 }