Merge pull request #5571 from ethereum/develop

Version 0.5.1

15 files changed, 164 insertions, 0 deletions

diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory.sol
new file mode 100644
index 00000000..e683ef39
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory.sol
@@ -0,0 +1,13 @@
+contract A {
+    uint dummy;
+    function f(uint[] calldata) external pure {}
+    function g(uint[] calldata) external view { dummy; }
+    function h(uint[] calldata) external { dummy = 42; }
+    function i(uint[] calldata) external payable {}
+}
+contract B is A {
+    function f(uint[] memory) public pure {}
+    function g(uint[] memory) public view { dummy; }
+    function h(uint[] memory) public { dummy = 42; }
+    function i(uint[] memory) public payable {}
+}
diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_conflict.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_conflict.sol
new file mode 100644
index 00000000..dc734d36
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_conflict.sol
@@ -0,0 +1,26 @@
+contract A {
+    uint dummy;
+    function f(uint[] calldata) external pure {}
+    function g(uint[] calldata) external view { dummy; }
+    function h(uint[] calldata) external { dummy = 42; }
+    function i(uint[] calldata) external payable {}
+}
+contract B is A {
+    function f(uint[] calldata) external pure {}
+    function g(uint[] calldata) external view { dummy; }
+    function h(uint[] calldata) external { dummy = 42; }
+    function i(uint[] calldata) external payable {}
+    function f(uint[] memory) public pure {}
+    function g(uint[] memory) public view { dummy; }
+    function h(uint[] memory) public { dummy = 42; }
+    function i(uint[] memory) public payable {}
+}
+// ----
+// DeclarationError: (268-312): Function with same name and arguments defined twice.
+// DeclarationError: (317-369): Function with same name and arguments defined twice.
+// DeclarationError: (374-426): Function with same name and arguments defined twice.
+// DeclarationError: (431-478): Function with same name and arguments defined twice.
+// TypeError: (268-312): Overriding function visibility differs.
+// TypeError: (317-369): Overriding function visibility differs.
+// TypeError: (374-426): Overriding function visibility differs.
+// TypeError: (431-478): Overriding function visibility differs.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface.sol
new file mode 100644
index 00000000..7eecc079
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface.sol
@@ -0,0 +1,13 @@
+interface I {
+    function f(uint[] calldata) external pure;
+    function g(uint[] calldata) external view;
+    function h(uint[] calldata) external;
+    function i(uint[] calldata) external payable;
+}
+contract C is I {
+    uint dummy;
+    function f(uint[] memory) public pure {}
+    function g(uint[] memory) public view { dummy; }
+    function h(uint[] memory) public { dummy = 42; }
+    function i(uint[] memory) public payable {}
+}
diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_instantiate.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_instantiate.sol
new file mode 100644
index 00000000..4cdc3924
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_instantiate.sol
@@ -0,0 +1,12 @@
+interface I {
+    function f(uint[] calldata) external pure;
+}
+contract A is I {
+    function f(uint[] memory) public pure {}
+}
+contract C {
+    function f() public {
+        I i = I(new A());
+        i.f(new uint[](1));
+    }
+}
\ No newline at end of file
diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_struct.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_struct.sol
new file mode 100644
index 00000000..49b27fd7
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_interface_struct.sol
@@ -0,0 +1,17 @@
+pragma experimental ABIEncoderV2;
+interface I {
+    struct S { int a; }
+    function f(S calldata) external pure;
+    function g(S calldata) external view;
+    function h(S calldata) external;
+    function i(S calldata) external payable;
+}
+contract C is I {
+    uint dummy;
+    function f(S memory) public pure {}
+    function g(S memory) public view { dummy; }
+    function h(S memory) public { dummy = 42; }
+    function i(S memory) public payable {}
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_struct.sol b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_struct.sol
new file mode 100644
index 00000000..42aebf30
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/calldata_memory_struct.sol
@@ -0,0 +1,17 @@
+pragma experimental ABIEncoderV2;
+contract A {
+    uint dummy;
+    struct S { int a; }
+    function f(S calldata) external pure {}
+    function g(S calldata) external view { dummy; }
+    function h(S calldata) external { dummy = 42; }
+    function i(S calldata) external payable {}
+}
+contract B is A {
+    function f(S memory) public pure {}
+    function g(S memory) public view { dummy; }
+    function h(S memory) public { dummy = 42; }
+    function i(S memory) public payable {}
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/change_return_types_in_interface.sol b/test/libsolidity/syntaxTests/inheritance/override/change_return_types_in_interface.sol
new file mode 100644
index 00000000..804a1810
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/change_return_types_in_interface.sol
@@ -0,0 +1,10 @@
+interface I {
+  function f() external pure returns (uint);
+}
+contract B is I {
+  // The compiler used to have a bug where changing
+  // the return type was fine in this situation.
+  function f() public pure returns (uint, uint) {}
+}
+// ----
+// TypeError: (182-230): Overriding function return types differ.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/external_turns_public_no_params.sol b/test/libsolidity/syntaxTests/inheritance/override/external_turns_public_no_params.sol
new file mode 100644
index 00000000..3d0394f5
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/external_turns_public_no_params.sol
@@ -0,0 +1,7 @@
+contract A {
+    function f() external pure {}
+}
+contract B is A {
+    function f() public pure {
+    }
+}
diff --git a/test/libsolidity/syntaxTests/inheritance/override/implement_interface_by_public_variable.sol b/test/libsolidity/syntaxTests/inheritance/override/implement_interface_by_public_variable.sol
new file mode 100644
index 00000000..49f7c33b
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/implement_interface_by_public_variable.sol
@@ -0,0 +1,7 @@
+interface X { function test() external returns (uint256); }
+contract Y is X {
+    uint256 public test = 42;
+}
+contract T {
+    constructor() public { new Y(); }
+}
diff --git a/test/libsolidity/syntaxTests/inheritance/override/implement_internal_function_by_public_variable.sol b/test/libsolidity/syntaxTests/inheritance/override/implement_internal_function_by_public_variable.sol
new file mode 100644
index 00000000..32fac25c
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/implement_internal_function_by_public_variable.sol
@@ -0,0 +1,9 @@
+contract X { function test() internal returns (uint256); }
+contract Y is X {
+    uint256 public test = 42;
+}
+contract T {
+    constructor() public { new Y(); }
+}
+// ----
+// DeclarationError: (81-105): Identifier already declared.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/implement_private_function_by_public_variable.sol b/test/libsolidity/syntaxTests/inheritance/override/implement_private_function_by_public_variable.sol
new file mode 100644
index 00000000..c58e24b6
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/implement_private_function_by_public_variable.sol
@@ -0,0 +1,7 @@
+contract X { function test() private returns (uint256); }
+contract Y is X {
+    uint256 public test = 42;
+}
+contract T {
+    constructor() public { new Y(); }
+}
diff --git a/test/libsolidity/syntaxTests/inheritance/override/implement_public_function_by_public_variable.sol b/test/libsolidity/syntaxTests/inheritance/override/implement_public_function_by_public_variable.sol
new file mode 100644
index 00000000..7a59c137
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/implement_public_function_by_public_variable.sol
@@ -0,0 +1,9 @@
+contract X { function test() public returns (uint256); }
+contract Y is X {
+    uint256 public test = 42;
+}
+contract T {
+    constructor() public { new Y(); }
+}
+// ----
+// DeclarationError: (79-103): Identifier already declared.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/internal_external.sol b/test/libsolidity/syntaxTests/inheritance/override/internal_external.sol
new file mode 100644
index 00000000..90973ee7
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/internal_external.sol
@@ -0,0 +1,7 @@
+contract A {
+    function f(uint[] calldata) external pure {}
+    function f(uint[] memory) internal pure {}
+}
+// ----
+// DeclarationError: (17-61): Function with same name and arguments defined twice.
+// TypeError: (17-61): Overriding function visibility differs.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/internal_external_inheritance.sol b/test/libsolidity/syntaxTests/inheritance/override/internal_external_inheritance.sol
new file mode 100644
index 00000000..c09a8000
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/override/internal_external_inheritance.sol
@@ -0,0 +1,9 @@
+contract A {
+    function f(uint[] calldata) external pure {}
+}
+contract B {
+    function f(uint[] memory) internal pure {}
+}
+contract C is A, B {}
+// ----
+// TypeError: (81-123): Overriding function visibility differs.
diff --git a/test/libsolidity/syntaxTests/inheritance/override/state_variable_function.sol b/test/libsolidity/syntaxTests/inheritance/override/state_variable_function.sol
index 0f05cc8e..fb7f3fbd 100644
--- a/test/libsolidity/syntaxTests/inheritance/override/state_variable_function.sol
+++ b/test/libsolidity/syntaxTests/inheritance/override/state_variable_function.sol
@@ -6,3 +6,4 @@ contract C is A {
 }
 // ----
 // DeclarationError: (50-85): Identifier already declared.
+// TypeError: (50-85): Redeclaring an already implemented function as abstract