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authorAnurag Dashputre <anurag4u80@gmail.com>2018-12-02 01:20:56 +0800
committerchriseth <chris@ethereum.org>2018-12-03 19:25:31 +0800
commit82f5763e7afa498f891e9d41b30278c4482ddb8b (patch)
treeffe9d7a020cf8e5bb475d0a283d26d73569fc3e5
parent4b98946e5a6cbc477ca5c61ca0a0dc8c2d1b27ca (diff)
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Fix internal compiler error for unimplemented base contract function.
-rw-r--r--Changelog.md1
-rw-r--r--libsolidity/ast/Types.cpp3
-rw-r--r--test/libsolidity/syntaxTests/unimplemented_super_function.sol8
-rw-r--r--test/libsolidity/syntaxTests/unimplemented_super_function_derived.sol12
4 files changed, 23 insertions, 1 deletions
diff --git a/Changelog.md b/Changelog.md
index 72d51bff..5df412ca 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -25,6 +25,7 @@ Bugfixes:
* Type Checker: Disallow struct return types for getters of public state variables unless the new ABI encoder is active.
* Type Checker: Fix internal compiler error when a field of a struct used as a parameter in a function type has a non-existent type.
* Type Checker: Disallow functions ``sha3`` and ``suicide`` also without a function call.
+ * Type Checker: Fix internal compiler error with ``super`` when base contract function is not implemented.
* Type Checker: Fixed internal error when trying to create abstract contract in some cases.
* Type Checker: Fixed internal error related to double declaration of events.
* Type Checker: Disallow inline arrays of mapping type.
diff --git a/libsolidity/ast/Types.cpp b/libsolidity/ast/Types.cpp
index 16e9cf89..6cadb5f3 100644
--- a/libsolidity/ast/Types.cpp
+++ b/libsolidity/ast/Types.cpp
@@ -1943,8 +1943,9 @@ MemberList::MemberMap ContractType::nativeMembers(ContractDefinition const* _con
for (ContractDefinition const* base: bases | boost::adaptors::sliced(1, bases.size()))
for (FunctionDefinition const* function: base->definedFunctions())
{
- if (!function->isVisibleInDerivedContracts())
+ if (!function->isVisibleInDerivedContracts() || !function->isImplemented())
continue;
+
auto functionType = make_shared<FunctionType>(*function, true);
bool functionWithEqualArgumentsFound = false;
for (auto const& member: members)
diff --git a/test/libsolidity/syntaxTests/unimplemented_super_function.sol b/test/libsolidity/syntaxTests/unimplemented_super_function.sol
new file mode 100644
index 00000000..356727ae
--- /dev/null
+++ b/test/libsolidity/syntaxTests/unimplemented_super_function.sol
@@ -0,0 +1,8 @@
+contract a {
+ function f() public;
+}
+contract b is a {
+ function f() public { super.f(); }
+}
+// ----
+// TypeError: (84-91): Member "f" not found or not visible after argument-dependent lookup in contract super b.
diff --git a/test/libsolidity/syntaxTests/unimplemented_super_function_derived.sol b/test/libsolidity/syntaxTests/unimplemented_super_function_derived.sol
new file mode 100644
index 00000000..88acbdf0
--- /dev/null
+++ b/test/libsolidity/syntaxTests/unimplemented_super_function_derived.sol
@@ -0,0 +1,12 @@
+contract a {
+ function f() public;
+}
+contract b is a {
+ function f() public { super.f(); }
+}
+contract c is a,b {
+ // No error here.
+ function f() public { super.f(); }
+}
+// ----
+// TypeError: (84-91): Member "f" not found or not visible after argument-dependent lookup in contract super b.