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Allow mapping arguments and return values in internal library functions.

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This commit is contained in:
Daniel Kirchner 2018-08-10 15:13:12 +02:00
parent a2c754b3fe
commit 57ada1d69e
15 changed files with 245 additions and 1 deletions
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1
Changelog.md
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@ -71,6 +71,7 @@ Language Features:
* General: Support ``pop()`` for storage arrays.
* General: Scoping rules now follow the C99-style.
* General: Allow ``enum``s in interfaces.
* General: Allow ``mapping`` arguments and return values in internal library functions.
Compiler Features:
* C API (``libsolc``): Export the ``solidity_license``, ``solidity_version`` and ``solidity_compile`` methods.

9
libsolidity/analysis/TypeChecker.cpp
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@ -629,7 +629,14 @@ bool TypeChecker::visit(FunctionDefinition const& _function)
}
for (ASTPointer<VariableDeclaration> const& var: _function.parameters() + _function.returnParameters())
{
if (!type(*var)->canLiveOutsideStorage())
if (
!type(*var)->canLiveOutsideStorage() &&
!(
isLibraryFunction &&
(_function.visibility() <= FunctionDefinition::Visibility::Internal) &&
type(*var)->category() == Type::Category::Mapping
)
)
m_errorReporter.typeError(var->location(), "Type is required to live outside storage.");
if (_function.visibility() >= FunctionDefinition::Visibility::Public && !(type(*var)->interfaceType(isLibraryFunction)))
m_errorReporter.fatalTypeError(var->location(), "Internal or recursive type is not allowed for public or external functions.");

156
test/libsolidity/SolidityEndToEndTest.cpp
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@ -7961,6 +7961,162 @@ BOOST_AUTO_TEST_CASE(internal_types_in_library)
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(4), u256(17)));
}
BOOST_AUTO_TEST_CASE(mapping_arguments_in_library)
{
char const* sourceCode = R"(
library Lib {
function set(mapping(uint => uint) storage m, uint key, uint value) internal
{
m[key] = value;
}
function get(mapping(uint => uint) storage m, uint key) internal view returns (uint)
{
return m[key];
}
}
contract Test {
mapping(uint => uint) m;
function set(uint256 key, uint256 value) public returns (uint)
{
uint oldValue = Lib.get(m, key);
Lib.set(m, key, value);
return oldValue;
}
function get(uint256 key) public view returns (uint) {
return Lib.get(m, key);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, Address>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(1), u256(42)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(2), u256(84)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(21), u256(7)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(uint256)", u256(1)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get(uint256)", u256(2)), encodeArgs(u256(84)));
ABI_CHECK(callContractFunction("get(uint256)", u256(21)), encodeArgs(u256(7)));
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(1), u256(21)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(2), u256(42)), encodeArgs(u256(84)));
ABI_CHECK(callContractFunction("set(uint256,uint256)", u256(21), u256(14)), encodeArgs(u256(7)));
ABI_CHECK(callContractFunction("get(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(uint256)", u256(1)), encodeArgs(u256(21)));
ABI_CHECK(callContractFunction("get(uint256)", u256(2)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get(uint256)", u256(21)), encodeArgs(u256(14)));
}
BOOST_AUTO_TEST_CASE(mapping_returns_in_library)
{
char const* sourceCode = R"(
library Lib {
function choose_mapping(mapping(uint => uint) storage a, mapping(uint => uint) storage b, bool c) internal pure returns(mapping(uint=>uint) storage)
{
return c ? a : b;
}
}
contract Test {
mapping(uint => uint) a;
mapping(uint => uint) b;
function set(bool choice, uint256 key, uint256 value) public returns (uint)
{
mapping(uint => uint) storage m = Lib.choose_mapping(a, b, choice);
uint oldValue = m[key];
m[key] = value;
return oldValue;
}
function get(bool choice, uint256 key) public view returns (uint) {
return Lib.choose_mapping(a, b, choice)[key];
}
function get_a(uint256 key) public view returns (uint) {
return a[key];
}
function get_b(uint256 key) public view returns (uint) {
return b[key];
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, Address>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(1), u256(42)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(2), u256(84)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(21), u256(7)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(1), u256(10)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(2), u256(11)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(21), u256(12)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(1)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(2)), encodeArgs(u256(84)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(21)), encodeArgs(u256(7)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(1)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(2)), encodeArgs(u256(84)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(21)), encodeArgs(u256(7)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(1)), encodeArgs(u256(10)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(2)), encodeArgs(u256(11)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(21)), encodeArgs(u256(12)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(1)), encodeArgs(u256(10)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(2)), encodeArgs(u256(11)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(21)), encodeArgs(u256(12)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(1), u256(21)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(2), u256(42)), encodeArgs(u256(84)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", true, u256(21), u256(14)), encodeArgs(u256(7)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(1), u256(30)), encodeArgs(u256(10)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(2), u256(31)), encodeArgs(u256(11)));
ABI_CHECK(callContractFunction("set(bool,uint256,uint256)", false, u256(21), u256(32)), encodeArgs(u256(12)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(1)), encodeArgs(u256(21)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(2)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get_a(uint256)", u256(21)), encodeArgs(u256(14)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(1)), encodeArgs(u256(21)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(2)), encodeArgs(u256(42)));
ABI_CHECK(callContractFunction("get(bool,uint256)", true, u256(21)), encodeArgs(u256(14)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(1)), encodeArgs(u256(30)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(2)), encodeArgs(u256(31)));
ABI_CHECK(callContractFunction("get_b(uint256)", u256(21)), encodeArgs(u256(32)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(0)), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(1)), encodeArgs(u256(30)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(2)), encodeArgs(u256(31)));
ABI_CHECK(callContractFunction("get(bool,uint256)", false, u256(21)), encodeArgs(u256(32)));
}
BOOST_AUTO_TEST_CASE(mapping_returns_in_library_named)
{
char const* sourceCode = R"(
library Lib {
function f(mapping(uint => uint) storage a, mapping(uint => uint) storage b) internal returns(mapping(uint=>uint) storage r)
{
r = a;
r[1] = 42;
r = b;
r[1] = 21;
}
}
contract Test {
mapping(uint => uint) a;
mapping(uint => uint) b;
function f() public returns (uint, uint, uint, uint, uint, uint)
{
Lib.f(a, b)[2] = 84;
return (a[0], a[1], a[2], b[0], b[1], b[2]);
}
function g() public returns (uint, uint, uint, uint, uint, uint)
{
mapping(uint => uint) storage m = Lib.f(a, b);
m[2] = 17;
return (a[0], a[1], a[2], b[0], b[1], b[2]);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, Address>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(0), u256(42), u256(0), u256(0), u256(21), u256(84)));
ABI_CHECK(callContractFunction("g()"), encodeArgs(u256(0), u256(42), u256(0), u256(0), u256(21), u256(17)));
}
BOOST_AUTO_TEST_CASE(using_library_structs)
{
char const* sourceCode = R"(

7
test/libsolidity/syntaxTests/types/mapping/argument_external.sol Normal file
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@ -0,0 +1,7 @@
contract C {
function f(mapping(uint => uint) storage) external pure {
}
}
// ----
// TypeError: (28-49): Type is required to live outside storage.
// TypeError: (28-49): Internal or recursive type is not allowed for public or external functions.

7
test/libsolidity/syntaxTests/types/mapping/argument_internal.sol Normal file
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@ -0,0 +1,7 @@
// This is expected to fail now, but may work in the future.
contract C {
function f(mapping(uint => uint) storage) internal pure {
}
}
// ----
// TypeError: (89-110): Type is required to live outside storage.

7
test/libsolidity/syntaxTests/types/mapping/argument_private.sol Normal file
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@ -0,0 +1,7 @@
// This is expected to fail now, but may work in the future.
contract C {
function f(mapping(uint => uint) storage) private pure {
}
}
// ----
// TypeError: (89-110): Type is required to live outside storage.

7
test/libsolidity/syntaxTests/types/mapping/argument_public.sol Normal file
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@ -0,0 +1,7 @@
contract C {
function f(mapping(uint => uint) storage) public pure {
}
}
// ----
// TypeError: (28-49): Type is required to live outside storage.
// TypeError: (28-49): Internal or recursive type is not allowed for public or external functions.

6
test/libsolidity/syntaxTests/types/mapping/library_argument_external.sol Normal file
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@ -0,0 +1,6 @@
library L {
function f(mapping(uint => uint) storage) external pure {
}
}
// ----
// TypeError: (27-48): Type is required to live outside storage.

4
test/libsolidity/syntaxTests/types/mapping/library_argument_internal.sol Normal file
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@ -0,0 +1,4 @@
library L {
function f(mapping(uint => uint) storage) internal pure {
}
}

4
test/libsolidity/syntaxTests/types/mapping/library_argument_private.sol Normal file
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@ -0,0 +1,4 @@
library L {
function f(mapping(uint => uint) storage) private pure {
}
}

6
test/libsolidity/syntaxTests/types/mapping/library_argument_public.sol Normal file
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@ -0,0 +1,6 @@
library L {
function f(mapping(uint => uint) storage) public pure {
}
}
// ----
// TypeError: (27-48): Type is required to live outside storage.

10
test/libsolidity/syntaxTests/types/mapping/library_return_external.sol Normal file
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@ -0,0 +1,10 @@
library L
{
function f(mapping(uint => uint) storage a, mapping(uint => uint) storage b, bool c) external pure returns(mapping(uint => uint) storage) {
return c ? a : b;
}
}
// ----
// TypeError: (27-58): Type is required to live outside storage.
// TypeError: (60-91): Type is required to live outside storage.
// TypeError: (123-144): Type is required to live outside storage.

6
test/libsolidity/syntaxTests/types/mapping/library_return_internal.sol Normal file
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@ -0,0 +1,6 @@
library L
{
function f(mapping(uint => uint) storage a, mapping(uint => uint) storage b, bool c) internal pure returns(mapping(uint => uint) storage) {
return c ? a : b;
}
}

6
test/libsolidity/syntaxTests/types/mapping/library_return_private.sol Normal file
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@ -0,0 +1,6 @@
library L
{
function f(mapping(uint => uint) storage a, mapping(uint => uint) storage b, bool c) private pure returns(mapping(uint => uint) storage) {
return c ? a : b;
}
}

10
test/libsolidity/syntaxTests/types/mapping/library_return_public.sol Normal file
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@ -0,0 +1,10 @@
library L
{
function f(mapping(uint => uint) storage a, mapping(uint => uint) storage b, bool c) public pure returns(mapping(uint => uint) storage) {
return c ? a : b;
}
}
// ----
// TypeError: (27-58): Type is required to live outside storage.
// TypeError: (60-91): Type is required to live outside storage.
// TypeError: (121-142): Type is required to live outside storage.