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solidity/test/libsolidity/SolidityEndToEndTest.cpp
Alex Beregszaszi f9d6abf69b Add more tests for state access (block, msg, tx, etc.) 
Move some of them out of SolidityEndToEndTests. Additionally this ensures the deterministic values of the testing infrastructure.
2020-12-09 20:46:01 +00:00

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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
/**
* @author Christian <c@ethdev.com>
* @author Gav Wood <g@ethdev.com>
* @date 2014
* Unit tests for the solidity expression compiler, testing the behaviour of the code.
*/
#include <test/libsolidity/SolidityExecutionFramework.h>
#include <test/Common.h>
#include <test/EVMHost.h>
#include <liblangutil/Exceptions.h>
#include <liblangutil/EVMVersion.h>
#include <libevmasm/Assembly.h>
#include <libsolutil/Keccak256.h>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/test/unit_test.hpp>
#include <functional>
#include <numeric>
#include <string>
#include <tuple>
using namespace std;
using namespace std::placeholders;
using namespace solidity;
using namespace solidity::util;
using namespace solidity::test;
using namespace solidity::langutil;
#define ALSO_VIA_YUL(CODE) \
{ \
m_doEwasmTestrun = true; \
\
m_compileViaYul = false; \
m_compileToEwasm = false; \
{ CODE } \
\
m_compileViaYul = true; \
reset(); \
{ CODE } \
\
if (m_doEwasmTestrun) \
{ \
m_compileToEwasm = true; \
reset(); \
{ CODE } \
} \
}
#define DISABLE_EWASM_TESTRUN() \
{ m_doEwasmTestrun = false; }
namespace solidity::frontend::test
{
struct SolidityEndToEndTestExecutionFramework: public SolidityExecutionFramework
{
bool m_doEwasmTestrun = false;
};
BOOST_FIXTURE_TEST_SUITE(SolidityEndToEndTest, SolidityEndToEndTestExecutionFramework)
unsigned constexpr roundTo32(unsigned _num)
{
return (_num + 31) / 32 * 32;
}
BOOST_AUTO_TEST_CASE(exp_operator)
{
char const* sourceCode = R"(
contract test {
function f(uint a) public returns(uint d) { return 2 ** a; }
}
)";
compileAndRun(sourceCode);
testContractAgainstCppOnRange("f(uint256)", [](u256 const& a) -> u256 { return u256(1 << a.convert_to<int>()); }, 0, 16);
}
BOOST_AUTO_TEST_CASE(exp_zero)
{
char const* sourceCode = R"(
contract test {
function f(uint a) public returns(uint d) { return a ** 0; }
}
)";
compileAndRun(sourceCode);
testContractAgainstCppOnRange("f(uint256)", [](u256 const&) -> u256 { return u256(1); }, 0, 16);
}
/* TODO let's add this back when I figure out the correct type conversion.
BOOST_AUTO_TEST_CASE(conditional_expression_string_literal)
{
char const* sourceCode = R"(
contract test {
function f(bool cond) public returns (bytes32) {
return cond ? "true" : "false";
}
}
)";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("f(bool)", true), encodeArgs(string("true", 4)));
ABI_CHECK(callContractFunction("f(bool)", false), encodeArgs(string("false", 5)));
}
*/
BOOST_AUTO_TEST_CASE(recursive_calls)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns(uint nfac) {
if (n <= 1) return 1;
else return n * f(n - 1);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
function<u256(u256)> recursive_calls_cpp = [&recursive_calls_cpp](u256 const& n) -> u256
{
if (n <= 1)
return 1;
else
return n * recursive_calls_cpp(n - 1);
};
testContractAgainstCppOnRange("f(uint256)", recursive_calls_cpp, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(while_loop)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns(uint nfac) {
nfac = 1;
uint i = 2;
while (i <= n) nfac *= i++;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto while_loop_cpp = [](u256 const& n) -> u256
{
u256 nfac = 1;
u256 i = 2;
while (i <= n)
nfac *= i++;
return nfac;
};
testContractAgainstCppOnRange("f(uint256)", while_loop_cpp, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(do_while_loop)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns(uint nfac) {
nfac = 1;
uint i = 2;
do { nfac *= i++; } while (i <= n);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto do_while_loop_cpp = [](u256 const& n) -> u256
{
u256 nfac = 1;
u256 i = 2;
do
{
nfac *= i++;
}
while (i <= n);
return nfac;
};
testContractAgainstCppOnRange("f(uint256)", do_while_loop_cpp, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(do_while_loop_multiple_local_vars)
{
char const* sourceCode = R"(
contract test {
function f(uint x) public pure returns(uint r) {
uint i = 0;
do
{
uint z = x * 2;
if (z < 4) break;
else {
uint k = z + 1;
if (k < 8) {
x++;
continue;
}
}
if (z > 12) return 0;
x++;
i++;
} while (true);
return 42;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto do_while = [](u256 n) -> u256
{
u256 i = 0;
do
{
u256 z = n * 2;
if (z < 4) break;
else {
u256 k = z + 1;
if (k < 8) {
n++;
continue;
}
}
if (z > 12) return 0;
n++;
i++;
} while (true);
return 42;
};
testContractAgainstCppOnRange("f(uint256)", do_while, 0, 12);
)
}
BOOST_AUTO_TEST_CASE(nested_loops)
{
// tests that break and continue statements in nested loops jump to the correct place
char const* sourceCode = R"(
contract test {
function f(uint x) public returns(uint y) {
while (x > 1) {
if (x == 10) break;
while (x > 5) {
if (x == 8) break;
x--;
if (x == 6) continue;
return x;
}
x--;
if (x == 3) continue;
break;
}
return x;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto nested_loops_cpp = [](u256 n) -> u256
{
while (n > 1)
{
if (n == 10)
break;
while (n > 5)
{
if (n == 8)
break;
n--;
if (n == 6)
continue;
return n;
}
n--;
if (n == 3)
continue;
break;
}
return n;
};
testContractAgainstCppOnRange("f(uint256)", nested_loops_cpp, 0, 12);
)
}
BOOST_AUTO_TEST_CASE(nested_loops_multiple_local_vars)
{
// tests that break and continue statements in nested loops jump to the correct place
// and free local variables properly
char const* sourceCode = R"(
contract test {
function f(uint x) public returns(uint y) {
while (x > 0) {
uint z = x + 10;
uint k = z + 1;
if (k > 20) {
break;
uint p = 100;
k += p;
}
if (k > 15) {
x--;
continue;
uint t = 1000;
x += t;
}
while (k > 10) {
uint m = k - 1;
if (m == 10) return x;
return k;
uint h = 10000;
z += h;
}
x--;
break;
}
return x;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto nested_loops_cpp = [](u256 n) -> u256
{
while (n > 0)
{
u256 z = n + 10;
u256 k = z + 1;
if (k > 20) break;
if (k > 15) {
n--;
continue;
}
while (k > 10)
{
u256 m = k - 1;
if (m == 10) return n;
return k;
}
n--;
break;
}
return n;
};
testContractAgainstCppOnRange("f(uint256)", nested_loops_cpp, 0, 12);
)
}
BOOST_AUTO_TEST_CASE(for_loop_multiple_local_vars)
{
char const* sourceCode = R"(
contract test {
function f(uint x) public pure returns(uint r) {
for (uint i = 0; i < 12; i++)
{
uint z = x + 1;
if (z < 4) break;
else {
uint k = z * 2;
if (i + k < 10) {
x++;
continue;
}
}
if (z > 8) return 0;
x++;
}
return 42;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto for_loop = [](u256 n) -> u256
{
for (u256 i = 0; i < 12; i++)
{
u256 z = n + 1;
if (z < 4) break;
else {
u256 k = z * 2;
if (i + k < 10) {
n++;
continue;
}
}
if (z > 8) return 0;
n++;
}
return 42;
};
testContractAgainstCppOnRange("f(uint256)", for_loop, 0, 12);
)
}
BOOST_AUTO_TEST_CASE(nested_for_loop_multiple_local_vars)
{
char const* sourceCode = R"(
contract test {
function f(uint x) public pure returns(uint r) {
for (uint i = 0; i < 5; i++)
{
uint z = x + 1;
if (z < 3) {
break;
uint p = z + 2;
}
for (uint j = 0; j < 5; j++)
{
uint k = z * 2;
if (j + k < 8) {
x++;
continue;
uint t = z * 3;
}
x++;
if (x > 20) {
return 84;
uint h = x + 42;
}
}
if (x > 30) {
return 42;
uint b = 0xcafe;
}
}
return 42;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto for_loop = [](u256 n) -> u256
{
for (u256 i = 0; i < 5; i++)
{
u256 z = n + 1;
if (z < 3) break;
for (u256 j = 0; j < 5; j++)
{
u256 k = z * 2;
if (j + k < 8) {
n++;
continue;
}
n++;
if (n > 20) return 84;
}
if (n > 30) return 42;
}
return 42;
};
testContractAgainstCppOnRange("f(uint256)", for_loop, 0, 12);
)
}
BOOST_AUTO_TEST_CASE(for_loop)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns(uint nfac) {
nfac = 1;
uint i;
for (i = 2; i <= n; i++)
nfac *= i;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto for_loop_cpp = [](u256 const& n) -> u256
{
u256 nfac = 1;
for (auto i = 2; i <= n; i++)
nfac *= i;
return nfac;
};
testContractAgainstCppOnRange("f(uint256)", for_loop_cpp, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(for_loop_simple_init_expr)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns(uint nfac) {
nfac = 1;
uint256 i;
for (i = 2; i <= n; i++)
nfac *= i;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto for_loop_simple_init_expr_cpp = [](u256 const& n) -> u256
{
u256 nfac = 1;
u256 i;
for (i = 2; i <= n; i++)
nfac *= i;
return nfac;
};
testContractAgainstCppOnRange("f(uint256)", for_loop_simple_init_expr_cpp, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(for_loop_break_continue)
{
char const* sourceCode = R"(
contract test {
function f(uint n) public returns (uint r)
{
uint i = 1;
uint k = 0;
for (i *= 5; k < n; i *= 7)
{
k++;
i += 4;
if (n % 3 == 0)
break;
i += 9;
if (n % 2 == 0)
continue;
i += 19;
}
return i;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto breakContinue = [](u256 const& n) -> u256
{
u256 i = 1;
u256 k = 0;
for (i *= 5; k < n; i *= 7)
{
k++;
i += 4;
if (n % 3 == 0)
break;
i += 9;
if (n % 2 == 0)
continue;
i += 19;
}
return i;
};
testContractAgainstCppOnRange("f(uint256)", breakContinue, 0, 10);
);
}
BOOST_AUTO_TEST_CASE(short_circuiting)
{
char const* sourceCode = R"(
contract test {
function run(uint x) public returns(uint y) {
x == 0 || ((x = 8) > 0);
return x;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto short_circuiting_cpp = [](u256 n) -> u256
{
(void)(n == 0 || (n = 8) > 0);
return n;
};
testContractAgainstCppOnRange("run(uint256)", short_circuiting_cpp, 0, 2);
)
}
BOOST_AUTO_TEST_CASE(high_bits_cleaning)
{
char const* sourceCode = R"(
contract test {
function run() public returns(uint256 y) {
uint32 t = uint32(0xffffffff);
uint32 x = t + 10;
if (x >= 0xffffffff) return 0;
return x;
}
}
)";
compileAndRun(sourceCode);
auto high_bits_cleaning_cpp = []() -> u256
{
uint32_t t = uint32_t(0xffffffff);
uint32_t x = t + 10;
if (x >= 0xffffffff)
return 0;
return x;
};
testContractAgainstCpp("run()", high_bits_cleaning_cpp);
}
BOOST_AUTO_TEST_CASE(sign_extension)
{
char const* sourceCode = R"(
contract test {
function run() public returns(uint256 y) {
int64 x = -int32(0xff);
if (x >= 0xff) return 0;
return -uint256(x);
}
}
)";
compileAndRun(sourceCode);
auto sign_extension_cpp = []() -> u256
{
int64_t x = -int32_t(0xff);
if (x >= 0xff)
return 0;
return u256(x) * -1;
};
testContractAgainstCpp("run()", sign_extension_cpp);
}
BOOST_AUTO_TEST_CASE(small_unsigned_types)
{
char const* sourceCode = R"(
contract test {
function run() public returns(uint256 y) {
uint32 t = uint32(0xffffff);
uint32 x = t * 0xffffff;
return x / 0x100;
}
}
)";
compileAndRun(sourceCode);
auto small_unsigned_types_cpp = []() -> u256
{
uint32_t t = uint32_t(0xffffff);
uint32_t x = t * 0xffffff;
return x / 0x100;
};
testContractAgainstCpp("run()", small_unsigned_types_cpp);
}
BOOST_AUTO_TEST_CASE(mapping_state_inc_dec)
{
char const* sourceCode = R"(
contract test {
uint value;
mapping(uint => uint) table;
function f(uint x) public returns (uint y) {
value = x;
if (x > 0) table[++value] = 8;
if (x > 1) value--;
if (x > 2) table[value]++;
table[value] += 10;
return --table[value++];
}
}
)";
u256 value;
map<u256, u256> table;
auto f = [&](u256 const& _x) -> u256
{
value = _x;
if (_x > 0)
table[++value] = 8;
if (_x > 1)
value --;
if (_x > 2)
table[value]++;
table[value] += 10;
return --table[value++];
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
value = 0;
table.clear();
testContractAgainstCppOnRange("f(uint256)", f, 0, 5);
)
}
BOOST_AUTO_TEST_CASE(multi_level_mapping)
{
char const* sourceCode = R"(
contract test {
mapping(uint => mapping(uint => uint)) table;
function f(uint x, uint y, uint z) public returns (uint w) {
if (z == 0) return table[x][y];
else return table[x][y] = z;
}
}
)";
map<u256, map<u256, u256>> table;
auto f = [&](u256 const& _x, u256 const& _y, u256 const& _z) -> u256
{
if (_z == 0) return table[_x][_y];
else return table[_x][_y] = _z;
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
table.clear();
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(4), u256(5), u256(0));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(5), u256(4), u256(0));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(4), u256(5), u256(9));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(4), u256(5), u256(0));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(5), u256(4), u256(0));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(5), u256(4), u256(7));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(4), u256(5), u256(0));
testContractAgainstCpp("f(uint256,uint256,uint256)", f, u256(5), u256(4), u256(0));
)
}
BOOST_AUTO_TEST_CASE(constructor)
{
char const* sourceCode = R"(
contract test {
mapping(uint => uint) data;
constructor() {
data[7] = 8;
}
function get(uint key) public returns (uint value) {
return data[key];
}
}
)";
map<u256, uint8_t> data;
data[7] = 8;
auto get = [&](u256 const& _x) -> u256
{
return data[_x];
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("get(uint256)", get, u256(6));
testContractAgainstCpp("get(uint256)", get, u256(7));
)
}
BOOST_AUTO_TEST_CASE(send_ether)
{
char const* sourceCode = R"(
contract test {
constructor() payable {}
function a(address payable addr, uint amount) public returns (uint ret) {
addr.send(amount);
return address(this).balance;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
u256 amount(250);
compileAndRun(sourceCode, amount + 1);
h160 address(23);
ABI_CHECK(callContractFunction("a(address,uint256)", address, amount), encodeArgs(1));
BOOST_CHECK_EQUAL(balanceAt(address), amount);
)
}
BOOST_AUTO_TEST_CASE(transfer_ether)
{
char const* sourceCode = R"(
contract A {
constructor() payable {}
function a(address payable addr, uint amount) public returns (uint) {
addr.transfer(amount);
return address(this).balance;
}
function b(address payable addr, uint amount) public {
addr.transfer(amount);
}
}
contract B {
}
contract C {
receive () external payable {
revert();
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode, 0, "B");
h160 const nonPayableRecipient = m_contractAddress;
compileAndRun(sourceCode, 0, "C");
h160 const oogRecipient = m_contractAddress;
compileAndRun(sourceCode, 20, "A");
h160 payableRecipient(23);
ABI_CHECK(callContractFunction("a(address,uint256)", payableRecipient, 10), encodeArgs(10));
BOOST_CHECK_EQUAL(balanceAt(payableRecipient), 10);
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 10);
ABI_CHECK(callContractFunction("b(address,uint256)", nonPayableRecipient, 10), encodeArgs());
ABI_CHECK(callContractFunction("b(address,uint256)", oogRecipient, 10), encodeArgs());
)
}
BOOST_AUTO_TEST_CASE(log0)
{
char const* sourceCode = R"(
contract test {
function a() public {
log0(bytes32(uint256(1)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("a()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_CHECK_EQUAL(numLogTopics(0), 0);
)
}
BOOST_AUTO_TEST_CASE(log1)
{
char const* sourceCode = R"(
contract test {
function a() public {
log1(bytes32(uint256(1)), bytes32(uint256(2)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("a()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), h256(u256(2)));
)
}
BOOST_AUTO_TEST_CASE(log2)
{
char const* sourceCode = R"(
contract test {
function a() public {
log2(bytes32(uint256(1)), bytes32(uint256(2)), bytes32(uint256(3)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("a()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
for (unsigned i = 0; i < 2; ++i)
BOOST_CHECK_EQUAL(logTopic(0, i), h256(u256(i + 2)));
)
}
BOOST_AUTO_TEST_CASE(log3)
{
char const* sourceCode = R"(
contract test {
function a() public {
log3(bytes32(uint256(1)), bytes32(uint256(2)), bytes32(uint256(3)), bytes32(uint256(4)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("a()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 3);
for (unsigned i = 0; i < 3; ++i)
BOOST_CHECK_EQUAL(logTopic(0, i), h256(u256(i + 2)));
)
}
BOOST_AUTO_TEST_CASE(log4)
{
char const* sourceCode = R"(
contract test {
function a() public {
log4(bytes32(uint256(1)), bytes32(uint256(2)), bytes32(uint256(3)), bytes32(uint256(4)), bytes32(uint256(5)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("a()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 4);
for (unsigned i = 0; i < 4; ++i)
BOOST_CHECK_EQUAL(logTopic(0, i), h256(u256(i + 2)));
)
}
BOOST_AUTO_TEST_CASE(log_in_constructor)
{
char const* sourceCode = R"(
contract test {
constructor() {
log1(bytes32(uint256(1)), bytes32(uint256(2)));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(1)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), h256(u256(2)));
)
}
BOOST_AUTO_TEST_CASE(selfdestruct)
{
char const* sourceCode = R"(
contract test {
constructor() payable {}
function a(address payable receiver) public returns (uint ret) {
selfdestruct(receiver);
return 10;
}
}
)";
u256 amount(130);
h160 address(23);
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode, amount);
ABI_CHECK(callContractFunction("a(address)", address), bytes());
BOOST_CHECK(!addressHasCode(m_contractAddress));
BOOST_CHECK_EQUAL(balanceAt(address), amount);
)
}
BOOST_AUTO_TEST_CASE(keccak256)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 hash) {
return keccak256(abi.encodePacked(input));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
auto f = [&](u256 const& _x) -> u256
{
return util::keccak256(toBigEndian(_x));
};
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
);
}
BOOST_AUTO_TEST_CASE(sha256)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 sha256hash) {
return sha256(abi.encodePacked(input));
}
}
)";
auto f = [&](u256 const& _x) -> bytes
{
if (_x == u256(4))
return fromHex("e38990d0c7fc009880a9c07c23842e886c6bbdc964ce6bdd5817ad357335ee6f");
if (_x == u256(5))
return fromHex("96de8fc8c256fa1e1556d41af431cace7dca68707c78dd88c3acab8b17164c47");
if (_x == u256(-1))
return fromHex("af9613760f72635fbdb44a5a0a63c39f12af30f950a6ee5c971be188e89c4051");
return fromHex("");
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
)
}
BOOST_AUTO_TEST_CASE(ripemd)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 sha256hash) {
return ripemd160(abi.encodePacked(input));
}
}
)";
auto f = [&](u256 const& _x) -> bytes
{
if (_x == u256(4))
return fromHex("1b0f3c404d12075c68c938f9f60ebea4f74941a0000000000000000000000000");
if (_x == u256(5))
return fromHex("ee54aa84fc32d8fed5a5fe160442ae84626829d9000000000000000000000000");
if (_x == u256(-1))
return fromHex("1cf4e77f5966e13e109703cd8a0df7ceda7f3dc3000000000000000000000000");
return fromHex("");
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
)
}
BOOST_AUTO_TEST_CASE(packed_keccak256)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 hash) {
uint24 b = 65536;
uint c = 256;
return keccak256(abi.encodePacked(uint8(8), input, b, input, c));
}
}
)";
auto f = [&](u256 const& _x) -> u256
{
return util::keccak256(
toCompactBigEndian(unsigned(8)) +
toBigEndian(_x) +
toCompactBigEndian(unsigned(65536)) +
toBigEndian(_x) +
toBigEndian(u256(256))
);
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
)
}
BOOST_AUTO_TEST_CASE(packed_keccak256_complex_types)
{
char const* sourceCode = R"(
contract test {
uint120[3] x;
function f() public returns (bytes32 hash1, bytes32 hash2, bytes32 hash3) {
uint120[] memory y = new uint120[](3);
x[0] = y[0] = uint120(-2);
x[1] = y[1] = uint120(-3);
x[2] = y[2] = uint120(-4);
hash1 = keccak256(abi.encodePacked(x));
hash2 = keccak256(abi.encodePacked(y));
hash3 = keccak256(abi.encodePacked(this.f));
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
// Strangely, arrays are encoded with intra-element padding.
ABI_CHECK(callContractFunction("f()"), encodeArgs(
util::keccak256(encodeArgs(u256("0xfffffffffffffffffffffffffffffe"), u256("0xfffffffffffffffffffffffffffffd"), u256("0xfffffffffffffffffffffffffffffc"))),
util::keccak256(encodeArgs(u256("0xfffffffffffffffffffffffffffffe"), u256("0xfffffffffffffffffffffffffffffd"), u256("0xfffffffffffffffffffffffffffffc"))),
util::keccak256(fromHex(m_contractAddress.hex() + "26121ff0"))
));
)
}
BOOST_AUTO_TEST_CASE(packed_sha256)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 hash) {
uint24 b = 65536;
uint c = 256;
return sha256(abi.encodePacked(uint8(8), input, b, input, c));
}
}
)";
auto f = [&](u256 const& _x) -> bytes
{
if (_x == u256(4))
return fromHex("804e0d7003cfd70fc925dc103174d9f898ebb142ecc2a286da1abd22ac2ce3ac");
if (_x == u256(5))
return fromHex("e94921945f9068726c529a290a954f412bcac53184bb41224208a31edbf63cf0");
if (_x == u256(-1))
return fromHex("f14def4d07cd185ddd8b10a81b2238326196a38867e6e6adbcc956dc913488c7");
return fromHex("");
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
)
}
BOOST_AUTO_TEST_CASE(packed_ripemd160)
{
char const* sourceCode = R"(
contract test {
function a(bytes32 input) public returns (bytes32 hash) {
uint24 b = 65536;
uint c = 256;
return ripemd160(abi.encodePacked(uint8(8), input, b, input, c));
}
}
)";
auto f = [&](u256 const& _x) -> bytes
{
if (_x == u256(4))
return fromHex("f93175303eba2a7b372174fc9330237f5ad202fc000000000000000000000000");
if (_x == u256(5))
return fromHex("04f4fc112e2bfbe0d38f896a46629e08e2fcfad5000000000000000000000000");
if (_x == u256(-1))
return fromHex("c0a2e4b1f3ff766a9a0089e7a410391730872495000000000000000000000000");
return fromHex("");
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
testContractAgainstCpp("a(bytes32)", f, u256(4));
testContractAgainstCpp("a(bytes32)", f, u256(5));
testContractAgainstCpp("a(bytes32)", f, u256(-1));
)
}
BOOST_AUTO_TEST_CASE(inter_contract_calls)
{
char const* sourceCode = R"(
contract Helper {
function multiply(uint a, uint b) public returns (uint c) {
return a * b;
}
}
contract Main {
Helper h;
function callHelper(uint a, uint b) public returns (uint c) {
return h.multiply(a, b);
}
function getHelper() public returns (address haddress) {
return address(h);
}
function setHelper(address haddress) public {
h = Helper(haddress);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
u256 a(3456789);
u256 b("0x282837623374623234aa74");
BOOST_REQUIRE(callContractFunction("callHelper(uint256,uint256)", a, b) == encodeArgs(a * b));
}
BOOST_AUTO_TEST_CASE(inter_contract_calls_with_complex_parameters)
{
char const* sourceCode = R"(
contract Helper {
function sel(uint a, bool select, uint b) public returns (uint c) {
if (select) return a; else return b;
}
}
contract Main {
Helper h;
function callHelper(uint a, bool select, uint b) public returns (uint c) {
return h.sel(a, select, b) * 3;
}
function getHelper() public returns (address haddress) {
return address(h);
}
function setHelper(address haddress) public {
h = Helper(haddress);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
u256 a(3456789);
u256 b("0x282837623374623234aa74");
BOOST_REQUIRE(callContractFunction("callHelper(uint256,bool,uint256)", a, true, b) == encodeArgs(a * 3));
BOOST_REQUIRE(callContractFunction("callHelper(uint256,bool,uint256)", a, false, b) == encodeArgs(b * 3));
}
BOOST_AUTO_TEST_CASE(inter_contract_calls_accessing_this)
{
char const* sourceCode = R"(
contract Helper {
function getAddress() public returns (address addr) {
return address(this);
}
}
contract Main {
Helper h;
function callHelper() public returns (address addr) {
return h.getAddress();
}
function getHelper() public returns (address addr) {
return address(h);
}
function setHelper(address addr) public {
h = Helper(addr);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
BOOST_REQUIRE(callContractFunction("callHelper()") == encodeArgs(c_helperAddress));
}
BOOST_AUTO_TEST_CASE(calls_to_this)
{
char const* sourceCode = R"(
contract Helper {
function invoke(uint a, uint b) public returns (uint c) {
return this.multiply(a, b, 10);
}
function multiply(uint a, uint b, uint8 c) public returns (uint ret) {
return a * b + c;
}
}
contract Main {
Helper h;
function callHelper(uint a, uint b) public returns (uint ret) {
return h.invoke(a, b);
}
function getHelper() public returns (address addr) {
return address(h);
}
function setHelper(address addr) public {
h = Helper(addr);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
u256 a(3456789);
u256 b("0x282837623374623234aa74");
BOOST_REQUIRE(callContractFunction("callHelper(uint256,uint256)", a, b) == encodeArgs(a * b + 10));
}
BOOST_AUTO_TEST_CASE(inter_contract_calls_with_local_vars)
{
// note that a reference to another contract's function occupies two stack slots,
// so this tests correct stack slot allocation
char const* sourceCode = R"(
contract Helper {
function multiply(uint a, uint b) public returns (uint c) {
return a * b;
}
}
contract Main {
Helper h;
function callHelper(uint a, uint b) public returns (uint c) {
uint8 y = 9;
uint256 ret = h.multiply(a, b);
return ret + y;
}
function getHelper() public returns (address haddress) {
return address(h);
}
function setHelper(address haddress) public {
h = Helper(haddress);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
u256 a(3456789);
u256 b("0x282837623374623234aa74");
BOOST_REQUIRE(callContractFunction("callHelper(uint256,uint256)", a, b) == encodeArgs(a * b + 9));
}
BOOST_AUTO_TEST_CASE(fixed_bytes_in_calls)
{
char const* sourceCode = R"(
contract Helper {
function invoke(bytes3 x, bool stop) public returns (bytes4 ret) {
return x;
}
}
contract Main {
Helper h;
function callHelper(bytes2 x, bool stop) public returns (bytes5 ret) {
return h.invoke(x, stop);
}
function getHelper() public returns (address addr) {
return address(h);
}
function setHelper(address addr) public {
h = Helper(addr);
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 0, "Main");
BOOST_REQUIRE(callContractFunction("setHelper(address)", c_helperAddress) == bytes());
BOOST_REQUIRE(callContractFunction("getHelper()", c_helperAddress) == encodeArgs(c_helperAddress));
ABI_CHECK(callContractFunction("callHelper(bytes2,bool)", string("\0a", 2), true), encodeArgs(string("\0a\0\0\0", 5)));
}
BOOST_AUTO_TEST_CASE(constructor_with_long_arguments)
{
char const* sourceCode = R"(
contract Main {
string public a;
string public b;
constructor(string memory _a, string memory _b) {
a = _a;
b = _b;
}
}
)";
string a = "01234567890123gabddunaouhdaoneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi45678907890123456789abcd123456787890123456789abcd90123456789012345678901234567890123456789aboneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi45678907890123456789abcd123456787890123456789abcd90123456789012345678901234567890123456789aboneudapcgadi4567890789012oneudapcgadi4567890789012oneudapcgadi45678907890123456789abcd123456787890123456789abcd90123456789012345678901234567890123456789aboneudapcgadi4567890789012cdef";
string b = "AUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PYAUTAHIACIANOTUHAOCUHAOEUNAOEHUNTHDYDHPYDRCPYDRSTITOEUBXHUDGO>PY";
compileAndRun(sourceCode, 0, "Main", encodeArgs(
u256(0x40),
u256(0x40 + 0x20 + ((a.length() + 31) / 32) * 32),
u256(a.length()),
a,
u256(b.length()),
b
));
ABI_CHECK(callContractFunction("a()"), encodeDyn(a));
ABI_CHECK(callContractFunction("b()"), encodeDyn(b));
}
BOOST_AUTO_TEST_CASE(contracts_as_addresses)
{
char const* sourceCode = R"(
contract helper {
receive() external payable { } // can receive ether
}
contract test {
helper h;
constructor() payable { h = new helper(); address(h).send(5); }
function getBalance() public returns (uint256 myBalance, uint256 helperBalance) {
myBalance = address(this).balance;
helperBalance = address(h).balance;
}
}
)";
compileAndRun(sourceCode, 20);
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 20 - 5);
BOOST_REQUIRE(callContractFunction("getBalance()") == encodeArgs(u256(20 - 5), u256(5)));
}
BOOST_AUTO_TEST_CASE(blockhash)
{
char const* sourceCode = R"(
contract C {
uint256 counter;
function g() public returns (bool) { counter++; return true; }
function f() public returns (bytes32[] memory r) {
r = new bytes32[](259);
for (uint i = 0; i < 259; i++)
r[i] = blockhash(block.number - 257 + i);
}
}
)";
compileAndRun(sourceCode);
// generate a sufficient amount of blocks
while (blockNumber() < u256(255))
ABI_CHECK(callContractFunction("g()"), encodeArgs(true));
vector<u256> hashes;
// ``blockhash()`` is only valid for the last 256 blocks, otherwise zero
hashes.emplace_back(0);
for (u256 i = blockNumber() - u256(255); i <= blockNumber(); i++)
hashes.emplace_back(blockHash(i));
// the current block hash is not yet known at execution time and therefore zero
hashes.emplace_back(0);
// future block hashes are zero
hashes.emplace_back(0);
ABI_CHECK(callContractFunction("f()"), encodeDyn(hashes));
}
BOOST_AUTO_TEST_CASE(internal_constructor)
{
char const* sourceCode = R"(
abstract contract C {
constructor() {}
}
)";
BOOST_CHECK(compileAndRunWithoutCheck({{"", sourceCode}}, 0, "C").empty());
}
BOOST_AUTO_TEST_CASE(default_fallback_throws)
{
char const* sourceCode = R"YY(
contract A {
function f() public returns (bool) {
(bool success,) = address(this).call("");
return success;
}
}
)YY";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("f()"), encodeArgs(0));
if (solidity::test::CommonOptions::get().evmVersion().hasStaticCall())
{
char const* sourceCode = R"YY(
contract A {
function f() public returns (bool) {
(bool success, bytes memory data) = address(this).staticcall("");
assert(data.length == 0);
return success;
}
}
)YY";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("f()"), encodeArgs(0));
}
}
BOOST_AUTO_TEST_CASE(event)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit(address indexed _from, bytes32 indexed _id, uint _value);
function deposit(bytes32 _id, bool _manually) public payable {
if (_manually) {
bytes32 s = 0x19dacbf83c5de6658e14cbf7bcae5c15eca2eedecf1c66fbca928e4d351bea0f;
log3(bytes32(msg.value), s, bytes32(uint256(msg.sender)), _id);
} else {
emit Deposit(msg.sender, _id, msg.value);
}
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 value(18);
u256 id(0x1234);
for (bool manually: {true, false})
{
callContractFunctionWithValue("deposit(bytes32,bool)", value, id, manually);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(value)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 3);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,bytes32,uint256)")));
BOOST_CHECK_EQUAL(logTopic(0, 1), h256(m_sender, h256::AlignRight));
BOOST_CHECK_EQUAL(logTopic(0, 2), h256(id));
}
)
}
BOOST_AUTO_TEST_CASE(event_emit)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit(address indexed _from, bytes32 indexed _id, uint _value);
function deposit(bytes32 _id) public payable {
emit Deposit(msg.sender, _id, msg.value);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 value(18);
u256 id(0x1234);
callContractFunctionWithValue("deposit(bytes32)", value, id);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(value)));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 3);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,bytes32,uint256)")));
BOOST_CHECK_EQUAL(logTopic(0, 1), h256(m_sender, h256::AlignRight));
BOOST_CHECK_EQUAL(logTopic(0, 2), h256(id));
)
}
BOOST_AUTO_TEST_CASE(event_no_arguments)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit();
function deposit() public {
emit Deposit();
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0).empty());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit()")));
)
}
BOOST_AUTO_TEST_CASE(event_access_through_base_name_emit)
{
char const* sourceCode = R"(
contract A {
event x();
}
contract B is A {
function f() public returns (uint) {
emit A.x();
return 1;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("f()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0).empty());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("x()")));
);
}
BOOST_AUTO_TEST_CASE(events_with_same_name)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit();
event Deposit(address _addr);
event Deposit(address _addr, uint _amount);
event Deposit(address _addr, bool _flag);
function deposit() public returns (uint) {
emit Deposit();
return 1;
}
function deposit(address _addr) public returns (uint) {
emit Deposit(_addr);
return 2;
}
function deposit(address _addr, uint _amount) public returns (uint) {
emit Deposit(_addr, _amount);
return 3;
}
function deposit(address _addr, bool _flag) public returns (uint) {
emit Deposit(_addr, _flag);
return 4;
}
}
)";
h160 const c_loggedAddress = m_contractAddress;
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("deposit()"), encodeArgs(u256(1)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0).empty());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit()")));
ABI_CHECK(callContractFunction("deposit(address)", c_loggedAddress), encodeArgs(u256(2)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
ABI_CHECK(logData(0), encodeArgs(c_loggedAddress));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address)")));
ABI_CHECK(callContractFunction("deposit(address,uint256)", c_loggedAddress, u256(100)), encodeArgs(u256(3)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
ABI_CHECK(logData(0), encodeArgs(c_loggedAddress, 100));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,uint256)")));
ABI_CHECK(callContractFunction("deposit(address,bool)", c_loggedAddress, false), encodeArgs(u256(4)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
ABI_CHECK(logData(0), encodeArgs(c_loggedAddress, false));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,bool)")));
)
}
BOOST_AUTO_TEST_CASE(events_with_same_name_inherited_emit)
{
char const* sourceCode = R"(
contract A {
event Deposit();
}
contract B {
event Deposit(address _addr);
}
contract ClientReceipt is A, B {
event Deposit(address _addr, uint _amount);
function deposit() public returns (uint) {
emit Deposit();
return 1;
}
function deposit(address _addr) public returns (uint) {
emit Deposit(_addr);
return 1;
}
function deposit(address _addr, uint _amount) public returns (uint) {
emit Deposit(_addr, _amount);
return 1;
}
}
)";
h160 const c_loggedAddress = m_contractAddress;
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("deposit()"), encodeArgs(u256(1)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0).empty());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit()")));
ABI_CHECK(callContractFunction("deposit(address)", c_loggedAddress), encodeArgs(u256(1)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(c_loggedAddress));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address)")));
ABI_CHECK(callContractFunction("deposit(address,uint256)", c_loggedAddress, u256(100)), encodeArgs(u256(1)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
ABI_CHECK(logData(0), encodeArgs(c_loggedAddress, 100));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,uint256)")));
)
}
BOOST_AUTO_TEST_CASE(event_anonymous)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit() anonymous;
function deposit() public {
emit Deposit();
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogTopics(0), 0);
)
}
BOOST_AUTO_TEST_CASE(event_anonymous_with_topics)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit(address indexed _from, bytes32 indexed _id, uint indexed _value, uint indexed _value2, bytes32 data) anonymous;
function deposit(bytes32 _id) public payable {
emit Deposit(msg.sender, _id, msg.value, 2, "abc");
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 value(18);
u256 id(0x1234);
callContractFunctionWithValue("deposit(bytes32)", value, id);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs("abc"));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 4);
BOOST_CHECK_EQUAL(logTopic(0, 0), h256(m_sender, h256::AlignRight));
BOOST_CHECK_EQUAL(logTopic(0, 1), h256(id));
BOOST_CHECK_EQUAL(logTopic(0, 2), h256(value));
BOOST_CHECK_EQUAL(logTopic(0, 3), h256(2));
)
}
BOOST_AUTO_TEST_CASE(event_lots_of_data)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit(address _from, bytes32 _id, uint _value, bool _flag);
function deposit(bytes32 _id) public payable {
emit Deposit(msg.sender, _id, msg.value, true);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 value(18);
u256 id(0x1234);
callContractFunctionWithValue("deposit(bytes32)", value, id);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(m_sender, id, value, true));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,bytes32,uint256,bool)")));
)
}
BOOST_AUTO_TEST_CASE(event_really_lots_of_data)
{
char const* sourceCode = R"(
contract ClientReceipt {
event Deposit(uint fixeda, bytes dynx, uint fixedb);
function deposit() public {
emit Deposit(10, msg.data, 15);
}
}
)";
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(toHex(logData(0)), toHex(encodeArgs(10, 0x60, 15, 4, asString(FixedHash<4>(util::keccak256("deposit()")).asBytes()))));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(uint256,bytes,uint256)")));
}
BOOST_AUTO_TEST_CASE(event_really_lots_of_data_from_storage)
{
char const* sourceCode = R"(
contract ClientReceipt {
bytes x;
event Deposit(uint fixeda, bytes dynx, uint fixedb);
function deposit() public {
x.push("A");
x.push("B");
x.push("C");
emit Deposit(10, x, 15);
}
}
)";
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK_EQUAL(toHex(logData(0)), toHex(encodeArgs(10, 0x60, 15, 3, string("ABC"))));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(uint256,bytes,uint256)")));
}
BOOST_AUTO_TEST_CASE(event_really_really_lots_of_data_from_storage)
{
char const* sourceCode = R"(
contract ClientReceipt {
bytes x;
event Deposit(uint fixeda, bytes dynx, uint fixedb);
function deposit() public {
x = new bytes(31);
x[0] = "A";
x[1] = "B";
x[2] = "C";
x[30] = "Z";
emit Deposit(10, x, 15);
}
}
)";
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(10, 0x60, 15, 31, string("ABC") + string(27, 0) + "Z"));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(uint256,bytes,uint256)")));
}
BOOST_AUTO_TEST_CASE(event_struct_memory_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S { uint a; }
event E(S);
function createEvent(uint x) public {
emit E(S(x));
}
}
)";
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(x));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint256))")));
}
BOOST_AUTO_TEST_CASE(event_struct_storage_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S { uint a; }
event E(S);
S s;
function createEvent(uint x) public {
s.a = x;
emit E(s);
}
}
)";
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(x));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint256))")));
}
BOOST_AUTO_TEST_CASE(event_dynamic_array_memory)
{
char const* sourceCode = R"(
contract C {
event E(uint[]);
function createEvent(uint x) public {
uint[] memory arr = new uint[](3);
arr[0] = x;
arr[1] = x + 1;
arr[2] = x + 2;
emit E(arr);
}
}
)";
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 3, x, x + 1, x + 2));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[])")));
}
BOOST_AUTO_TEST_CASE(event_dynamic_array_memory_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
event E(uint[]);
function createEvent(uint x) public {
uint[] memory arr = new uint[](3);
arr[0] = x;
arr[1] = x + 1;
arr[2] = x + 2;
emit E(arr);
}
}
)";
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 3, x, x + 1, x + 2));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[])")));
}
BOOST_AUTO_TEST_CASE(event_dynamic_nested_array_memory_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
event E(uint[][]);
function createEvent(uint x) public {
uint[][] memory arr = new uint[][](2);
arr[0] = new uint[](2);
arr[1] = new uint[](2);
arr[0][0] = x;
arr[0][1] = x + 1;
arr[1][0] = x + 2;
arr[1][1] = x + 3;
emit E(arr);
}
}
)";
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 2, 0x40, 0xa0, 2, x, x + 1, 2, x + 2, x + 3));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[][])")));
}
BOOST_AUTO_TEST_CASE(event_dynamic_array_storage)
{
char const* sourceCode = R"(
contract C {
event E(uint[]);
uint[] arr;
function createEvent(uint x) public {
while (arr.length < 3)
arr.push();
arr[0] = x;
arr[1] = x + 1;
arr[2] = x + 2;
emit E(arr);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 3, x, x + 1, x + 2));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[])")));
)
}
BOOST_AUTO_TEST_CASE(event_dynamic_array_storage_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
event E(uint[]);
uint[] arr;
function createEvent(uint x) public {
while (arr.length < 3)
arr.push();
arr[0] = x;
arr[1] = x + 1;
arr[2] = x + 2;
emit E(arr);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 3, x, x + 1, x + 2));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[])")));
)
}
BOOST_AUTO_TEST_CASE(event_dynamic_nested_array_storage_v2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
event E(uint[][]);
uint[][] arr;
function createEvent(uint x) public {
arr.push(new uint[](2));
arr.push(new uint[](2));
arr[0][0] = x;
arr[0][1] = x + 1;
arr[1][0] = x + 2;
arr[1][1] = x + 3;
emit E(arr);
}
}
)";
/// TODO enable again after push(..) via yul is implemented for nested arrays.
/// ALSO_VIA_YUL()
compileAndRun(sourceCode);
u256 x(42);
callContractFunction("createEvent(uint256)", x);
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(0x20, 2, 0x40, 0xa0, 2, x, x + 1, 2, x + 2, x + 3));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(uint256[][])")));
}
BOOST_AUTO_TEST_CASE(event_indexed_string)
{
char const* sourceCode = R"(
contract C {
string x;
uint[4] y;
event E(string indexed r, uint[4] indexed t);
function deposit() public {
for (uint i = 0; i < 90; i++)
bytes(x).push(0);
for (uint8 i = 0; i < 90; i++)
bytes(x)[i] = byte(i);
y[0] = 4;
y[1] = 5;
y[2] = 6;
y[3] = 7;
emit E(x, y);
}
}
)";
compileAndRun(sourceCode);
callContractFunction("deposit()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
string dynx(90, 0);
std::iota(dynx.begin(), dynx.end(), 0);
BOOST_CHECK(logData(0) == bytes());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 3);
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(dynx));
BOOST_CHECK_EQUAL(logTopic(0, 2), util::keccak256(
encodeArgs(u256(4), u256(5), u256(6), u256(7))
));
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(string,uint256[4])")));
}
BOOST_AUTO_TEST_CASE(event_indexed_function)
{
char const* sourceCode = R"(
contract C {
event Test(function() external indexed);
function f() public {
emit Test(this.f);
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
callContractFunction("f()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == bytes());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
bytes functionHash = util::keccak256("f()").asBytes();
bytes address = m_contractAddress.asBytes();
bytes selector = bytes(functionHash.cbegin(), functionHash.cbegin() + 4);
bytes padding = bytes(8, 0);
bytes functionABI = address + selector + padding;
BOOST_CHECK_EQUAL(logTopic(0, 1).hex(), util::toHex(functionABI));
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Test(function)")));
)
}
BOOST_AUTO_TEST_CASE(empty_name_input_parameter_with_named_one)
{
char const* sourceCode = R"(
contract test {
function f(uint, uint k) public returns(uint ret_k, uint ret_g){
uint g = 8;
ret_k = k;
ret_g = g;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
BOOST_CHECK(callContractFunction("f(uint256,uint256)", 5, 9) != encodeArgs(5, 8));
ABI_CHECK(callContractFunction("f(uint256,uint256)", 5, 9), encodeArgs(9, 8));
)
}
BOOST_AUTO_TEST_CASE(generic_call)
{
char const* sourceCode = R"**(
contract receiver {
uint public received;
function recv(uint256 x) public payable { received = x; }
}
contract sender {
constructor() payable {}
function doSend(address rec) public returns (uint d)
{
bytes4 signature = bytes4(bytes32(keccak256("recv(uint256)")));
rec.call{value: 2}(abi.encodeWithSelector(signature, 23));
return receiver(rec).received();
}
}
)**";
compileAndRun(sourceCode, 0, "receiver");
h160 const c_receiverAddress = m_contractAddress;
compileAndRun(sourceCode, 50, "sender");
BOOST_REQUIRE(callContractFunction("doSend(address)", c_receiverAddress) == encodeArgs(23));
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 50 - 2);
}
BOOST_AUTO_TEST_CASE(generic_delegatecall)
{
char const* sourceCode = R"**(
contract Receiver {
uint public received;
address public sender;
uint public value;
constructor() payable {}
function recv(uint256 x) public payable { received = x; sender = msg.sender; value = msg.value; }
}
contract Sender {
uint public received;
address public sender;
uint public value;
constructor() payable {}
function doSend(address rec) public payable
{
bytes4 signature = bytes4(bytes32(keccak256("recv(uint256)")));
(bool success,) = rec.delegatecall(abi.encodeWithSelector(signature, 23));
success;
}
}
)**";
for (auto v2: {false, true})
{
string source = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n" + string(sourceCode);
compileAndRun(source, 0, "Receiver");
h160 const c_receiverAddress = m_contractAddress;
compileAndRun(source, 50, "Sender");
h160 const c_senderAddress = m_contractAddress;
BOOST_CHECK(m_sender != c_senderAddress); // just for sanity
ABI_CHECK(callContractFunctionWithValue("doSend(address)", 11, c_receiverAddress), encodeArgs());
ABI_CHECK(callContractFunction("received()"), encodeArgs(u256(23)));
ABI_CHECK(callContractFunction("sender()"), encodeArgs(m_sender));
ABI_CHECK(callContractFunction("value()"), encodeArgs(u256(11)));
m_contractAddress = c_receiverAddress;
ABI_CHECK(callContractFunction("received()"), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("sender()"), encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("value()"), encodeArgs(u256(0)));
BOOST_CHECK(storageEmpty(c_receiverAddress));
BOOST_CHECK(!storageEmpty(c_senderAddress));
BOOST_CHECK_EQUAL(balanceAt(c_receiverAddress), 0);
BOOST_CHECK_EQUAL(balanceAt(c_senderAddress), 50 + 11);
}
}
BOOST_AUTO_TEST_CASE(generic_staticcall)
{
if (solidity::test::CommonOptions::get().evmVersion().hasStaticCall())
{
char const* sourceCode = R"**(
contract A {
uint public x;
constructor() { x = 42; }
function pureFunction(uint256 p) public pure returns (uint256) { return p; }
function viewFunction(uint256 p) public view returns (uint256) { return p + x; }
function nonpayableFunction(uint256 p) public returns (uint256) { x = p; return x; }
function assertFunction(uint256 p) public view returns (uint256) { assert(x == p); return x; }
}
contract C {
function f(address a) public view returns (bool, bytes memory)
{
return a.staticcall(abi.encodeWithSignature("pureFunction(uint256)", 23));
}
function g(address a) public view returns (bool, bytes memory)
{
return a.staticcall(abi.encodeWithSignature("viewFunction(uint256)", 23));
}
function h(address a) public view returns (bool, bytes memory)
{
return a.staticcall(abi.encodeWithSignature("nonpayableFunction(uint256)", 23));
}
function i(address a, uint256 v) public view returns (bool, bytes memory)
{
return a.staticcall(abi.encodeWithSignature("assertFunction(uint256)", v));
}
}
)**";
compileAndRun(sourceCode, 0, "A");
h160 const c_addressA = m_contractAddress;
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f(address)", c_addressA), encodeArgs(true, 0x40, 0x20, 23));
ABI_CHECK(callContractFunction("g(address)", c_addressA), encodeArgs(true, 0x40, 0x20, 23 + 42));
ABI_CHECK(callContractFunction("h(address)", c_addressA), encodeArgs(false, 0x40, 0x00));
ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 42), encodeArgs(true, 0x40, 0x20, 42));
ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 23), encodeArgs(false, 0x40, 0x00));
}
}
BOOST_AUTO_TEST_CASE(library_call_in_homestead)
{
char const* sourceCode = R"(
library Lib { function m() public returns (address) { return msg.sender; } }
contract Test {
address public sender;
function f() public {
sender = Lib.m();
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs());
ABI_CHECK(callContractFunction("sender()"), encodeArgs(m_sender));
}
BOOST_AUTO_TEST_CASE(library_call_protection)
{
// This tests code that reverts a call if it is a direct call to a library
// as opposed to a delegatecall.
char const* sourceCode = R"(
library Lib {
struct S { uint x; }
// a direct call to this should revert
function np(S storage s) public returns (address) { s.x = 3; return msg.sender; }
// a direct call to this is fine
function v(S storage) public view returns (address) { return msg.sender; }
// a direct call to this is fine
function pu() public pure returns (uint) { return 2; }
}
contract Test {
Lib.S public s;
function np() public returns (address) { return Lib.np(s); }
function v() public view returns (address) { return Lib.v(s); }
function pu() public pure returns (uint) { return Lib.pu(); }
}
)";
compileAndRun(sourceCode, 0, "Lib");
ABI_CHECK(callContractFunction("np(Lib.S storage)", 0), encodeArgs());
ABI_CHECK(callContractFunction("v(Lib.S storage)", 0), encodeArgs(m_sender));
ABI_CHECK(callContractFunction("pu()"), encodeArgs(2));
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("s()"), encodeArgs(0));
ABI_CHECK(callContractFunction("np()"), encodeArgs(m_sender));
ABI_CHECK(callContractFunction("s()"), encodeArgs(3));
ABI_CHECK(callContractFunction("v()"), encodeArgs(m_sender));
ABI_CHECK(callContractFunction("pu()"), encodeArgs(2));
}
BOOST_AUTO_TEST_CASE(library_staticcall_delegatecall)
{
char const* sourceCode = R"(
library Lib {
function x() public view returns (uint) {
return 1;
}
}
contract Test {
uint t;
function f() public returns (uint) {
t = 2;
return this.g();
}
function g() public view returns (uint) {
return Lib.x();
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(1));
}
BOOST_AUTO_TEST_CASE(bytes_from_calldata_to_memory)
{
char const* sourceCode = R"(
contract C {
function f() public returns (bytes32) {
return keccak256(abi.encodePacked("abc", msg.data));
}
}
)";
compileAndRun(sourceCode);
bytes calldata1 = FixedHash<4>(util::keccak256("f()")).asBytes() + bytes(61, 0x22) + bytes(12, 0x12);
sendMessage(calldata1, false);
BOOST_CHECK(m_transactionSuccessful);
BOOST_CHECK(m_output == encodeArgs(util::keccak256(bytes{'a', 'b', 'c'} + calldata1)));
}
BOOST_AUTO_TEST_CASE(call_forward_bytes)
{
char const* sourceCode = R"(
contract receiver {
uint public received;
function recv(uint x) public { received += x + 1; }
fallback() external { received = 0x80; }
}
contract sender {
constructor() { rec = new receiver(); }
fallback() external { savedData = msg.data; }
function forward() public returns (bool) { address(rec).call(savedData); return true; }
function clear() public returns (bool) { delete savedData; return true; }
function val() public returns (uint) { return rec.received(); }
receiver rec;
bytes savedData;
}
)";
compileAndRun(sourceCode, 0, "sender");
ABI_CHECK(callContractFunction("recv(uint256)", 7), bytes());
ABI_CHECK(callContractFunction("val()"), encodeArgs(0));
ABI_CHECK(callContractFunction("forward()"), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(8));
ABI_CHECK(callContractFunction("clear()"), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(8));
ABI_CHECK(callContractFunction("forward()"), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(0x80));
}
BOOST_AUTO_TEST_CASE(call_forward_bytes_length)
{
char const* sourceCode = R"(
contract receiver {
uint public calledLength;
fallback() external { calledLength = msg.data.length; }
}
contract sender {
receiver rec;
constructor() { rec = new receiver(); }
function viaCalldata() public returns (uint) {
(bool success,) = address(rec).call(msg.data);
require(success);
return rec.calledLength();
}
function viaMemory() public returns (uint) {
bytes memory x = msg.data;
(bool success,) = address(rec).call(x);
require(success);
return rec.calledLength();
}
bytes s;
function viaStorage() public returns (uint) {
s = msg.data;
(bool success,) = address(rec).call(s);
require(success);
return rec.calledLength();
}
}
)";
compileAndRun(sourceCode, 0, "sender");
// No additional data, just function selector
ABI_CHECK(callContractFunction("viaCalldata()"), encodeArgs(4));
ABI_CHECK(callContractFunction("viaMemory()"), encodeArgs(4));
ABI_CHECK(callContractFunction("viaStorage()"), encodeArgs(4));
// Some additional unpadded data
bytes unpadded = asBytes(string("abc"));
ABI_CHECK(callContractFunctionNoEncoding("viaCalldata()", unpadded), encodeArgs(7));
ABI_CHECK(callContractFunctionNoEncoding("viaMemory()", unpadded), encodeArgs(7));
ABI_CHECK(callContractFunctionNoEncoding("viaStorage()", unpadded), encodeArgs(7));
}
BOOST_AUTO_TEST_CASE(copying_bytes_multiassign)
{
char const* sourceCode = R"(
contract receiver {
uint public received;
function recv(uint x) public { received += x + 1; }
fallback() external { received = 0x80; }
}
contract sender {
constructor() { rec = new receiver(); }
fallback() external { savedData1 = savedData2 = msg.data; }
function forward(bool selector) public returns (bool) {
if (selector) { address(rec).call(savedData1); delete savedData1; }
else { address(rec).call(savedData2); delete savedData2; }
return true;
}
function val() public returns (uint) { return rec.received(); }
receiver rec;
bytes savedData1;
bytes savedData2;
}
)";
compileAndRun(sourceCode, 0, "sender");
ABI_CHECK(callContractFunction("recv(uint256)", 7), bytes());
ABI_CHECK(callContractFunction("val()"), encodeArgs(0));
ABI_CHECK(callContractFunction("forward(bool)", true), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(8));
ABI_CHECK(callContractFunction("forward(bool)", false), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(16));
ABI_CHECK(callContractFunction("forward(bool)", true), encodeArgs(true));
ABI_CHECK(callContractFunction("val()"), encodeArgs(0x80));
}
BOOST_AUTO_TEST_CASE(copy_from_calldata_removes_bytes_data)
{
char const* sourceCode = R"(
contract c {
function set() public returns (bool) { data = msg.data; return true; }
fallback() external { data = msg.data; }
bytes data;
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("set()", 1, 2, 3, 4, 5), encodeArgs(true));
BOOST_CHECK(!storageEmpty(m_contractAddress));
sendMessage(bytes(), false);
BOOST_CHECK(m_transactionSuccessful);
BOOST_CHECK(m_output.empty());
BOOST_CHECK(storageEmpty(m_contractAddress));
);
}
BOOST_AUTO_TEST_CASE(storing_invalid_boolean)
{
char const* sourceCode = R"(
contract C {
event Ev(bool);
bool public perm;
function set() public returns(uint) {
bool tmp;
assembly {
tmp := 5
}
perm = tmp;
return 1;
}
function ret() public returns(bool) {
bool tmp;
assembly {
tmp := 5
}
return tmp;
}
function ev() public returns(uint) {
bool tmp;
assembly {
tmp := 5
}
emit Ev(tmp);
return 1;
}
}
)";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("set()"), encodeArgs(1));
ABI_CHECK(callContractFunction("perm()"), encodeArgs(1));
ABI_CHECK(callContractFunction("ret()"), encodeArgs(1));
ABI_CHECK(callContractFunction("ev()"), encodeArgs(1));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_CHECK(logData(0) == encodeArgs(1));
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Ev(bool)")));
}
BOOST_AUTO_TEST_CASE(struct_referencing)
{
static char const* sourceCode = R"(
pragma abicoder v2;
interface I {
struct S { uint a; }
}
library L {
struct S { uint b; uint a; }
function f() public pure returns (S memory) {
S memory s;
s.a = 3;
return s;
}
function g() public pure returns (I.S memory) {
I.S memory s;
s.a = 4;
return s;
}
// argument-dependant lookup tests
function a(I.S memory) public pure returns (uint) { return 1; }
function a(S memory) public pure returns (uint) { return 2; }
}
contract C is I {
function f() public pure returns (S memory) {
S memory s;
s.a = 1;
return s;
}
function g() public pure returns (I.S memory) {
I.S memory s;
s.a = 2;
return s;
}
function h() public pure returns (L.S memory) {
L.S memory s;
s.a = 5;
return s;
}
function x() public pure returns (L.S memory) {
return L.f();
}
function y() public pure returns (I.S memory) {
return L.g();
}
function a1() public pure returns (uint) { S memory s; return L.a(s); }
function a2() public pure returns (uint) { L.S memory s; return L.a(s); }
}
)";
compileAndRun(sourceCode, 0, "L");
ABI_CHECK(callContractFunction("f()"), encodeArgs(0, 3));
ABI_CHECK(callContractFunction("g()"), encodeArgs(4));
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{ {"L", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(1));
ABI_CHECK(callContractFunction("g()"), encodeArgs(2));
ABI_CHECK(callContractFunction("h()"), encodeArgs(0, 5));
ABI_CHECK(callContractFunction("x()"), encodeArgs(0, 3));
ABI_CHECK(callContractFunction("y()"), encodeArgs(4));
ABI_CHECK(callContractFunction("a1()"), encodeArgs(1));
ABI_CHECK(callContractFunction("a2()"), encodeArgs(2));
}
BOOST_AUTO_TEST_CASE(enum_referencing)
{
char const* sourceCode = R"(
interface I {
enum Direction { A, B, Left, Right }
}
library L {
enum Direction { Left, Right }
function f() public pure returns (Direction) {
return Direction.Right;
}
function g() public pure returns (I.Direction) {
return I.Direction.Right;
}
}
contract C is I {
function f() public pure returns (Direction) {
return Direction.Right;
}
function g() public pure returns (I.Direction) {
return I.Direction.Right;
}
function h() public pure returns (L.Direction) {
return L.Direction.Right;
}
function x() public pure returns (L.Direction) {
return L.f();
}
function y() public pure returns (I.Direction) {
return L.g();
}
}
)";
compileAndRun(sourceCode, 0, "L");
ABI_CHECK(callContractFunction("f()"), encodeArgs(1));
ABI_CHECK(callContractFunction("g()"), encodeArgs(3));
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"L", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(3));
ABI_CHECK(callContractFunction("g()"), encodeArgs(3));
ABI_CHECK(callContractFunction("h()"), encodeArgs(1));
ABI_CHECK(callContractFunction("x()"), encodeArgs(1));
ABI_CHECK(callContractFunction("y()"), encodeArgs(3));
}
BOOST_AUTO_TEST_CASE(bytes_in_arguments)
{
char const* sourceCode = R"(
contract c {
uint result;
function f(uint a, uint b) public { result += a + b; }
function g(uint a) public { result *= a; }
function test(uint a, bytes calldata data1, bytes calldata data2, uint b) external returns (uint r_a, uint r, uint r_b, uint l) {
r_a = a;
address(this).call(data1);
address(this).call(data2);
r = result;
r_b = b;
l = data1.length;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
string innercalldata1 = asString(FixedHash<4>(util::keccak256("f(uint256,uint256)")).asBytes() + encodeArgs(8, 9));
string innercalldata2 = asString(FixedHash<4>(util::keccak256("g(uint256)")).asBytes() + encodeArgs(3));
bytes calldata = encodeArgs(
12, 32 * 4, u256(32 * 4 + 32 + (innercalldata1.length() + 31) / 32 * 32), 13,
u256(innercalldata1.length()), innercalldata1,
u256(innercalldata2.length()), innercalldata2);
ABI_CHECK(
callContractFunction("test(uint256,bytes,bytes,uint256)", calldata),
encodeArgs(12, (8 + 9) * 3, 13, u256(innercalldata1.length()))
);
);
}
BOOST_AUTO_TEST_CASE(array_copy_storage_abi)
{
// NOTE: This does not really test copying from storage to ABI directly,
// because it will always copy to memory first.
char const* sourceCode = R"(
pragma abicoder v2;
contract c {
uint8[] x;
uint16[] y;
uint24[] z;
uint24[][] w;
function test1() public returns (uint8[] memory) {
for (uint i = 0; i < 101; ++i)
x.push(uint8(i));
return x;
}
function test2() public returns (uint16[] memory) {
for (uint i = 0; i < 101; ++i)
y.push(uint16(i));
return y;
}
function test3() public returns (uint24[] memory) {
for (uint i = 0; i < 101; ++i)
z.push(uint24(i));
return z;
}
function test4() public returns (uint24[][] memory) {
w = new uint24[][](5);
for (uint i = 0; i < 5; ++i)
for (uint j = 0; j < 101; ++j)
w[i].push(uint24(j));
return w;
}
}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode);
bytes valueSequence;
for (size_t i = 0; i < 101; ++i)
valueSequence += toBigEndian(u256(i));
ABI_CHECK(callContractFunction("test1()"), encodeArgs(0x20, 101) + valueSequence);
ABI_CHECK(callContractFunction("test2()"), encodeArgs(0x20, 101) + valueSequence);
ABI_CHECK(callContractFunction("test3()"), encodeArgs(0x20, 101) + valueSequence);
ABI_CHECK(callContractFunction("test4()"),
encodeArgs(0x20, 5, 0xa0, 0xa0 + 102 * 32 * 1, 0xa0 + 102 * 32 * 2, 0xa0 + 102 * 32 * 3, 0xa0 + 102 * 32 * 4) +
encodeArgs(101) + valueSequence +
encodeArgs(101) + valueSequence +
encodeArgs(101) + valueSequence +
encodeArgs(101) + valueSequence +
encodeArgs(101) + valueSequence
);
);
}
//BOOST_AUTO_TEST_CASE(assignment_to_const_array_vars)
//{
// char const* sourceCode = R"(
// contract C {
// uint[3] constant x = [uint(1), 2, 3];
// uint constant y = x[0] + x[1] + x[2];
// function f() public returns (uint) { return y; }
// }
// )";
// compileAndRun(sourceCode);
// ABI_CHECK(callContractFunction("f()"), encodeArgs(1 + 2 + 3));
//}
// Disabled until https://github.com/ethereum/solidity/issues/715 is implemented
//BOOST_AUTO_TEST_CASE(constant_struct)
//{
// char const* sourceCode = R"(
// contract C {
// struct S { uint x; uint[] y; }
// S constant x = S(5, new uint[](4));
// function f() public returns (uint) { return x.x; }
// }
// )";
// compileAndRun(sourceCode);
// ABI_CHECK(callContractFunction("f()"), encodeArgs(5));
//}
BOOST_AUTO_TEST_CASE(packed_storage_structs_delete)
{
char const* sourceCode = R"(
contract C {
struct str { uint8 a; uint16 b; uint8 c; }
uint8 x;
uint16 y;
str data;
function test() public returns (uint) {
x = 1;
y = 2;
data.a = 2;
data.b = 0xabcd;
data.c = 0xfa;
if (x != 1 || y != 2 || data.a != 2 || data.b != 0xabcd || data.c != 0xfa)
return 2;
delete y;
delete data.b;
if (x != 1 || y != 0 || data.a != 2 || data.b != 0 || data.c != 0xfa)
return 3;
delete x;
delete data;
return 1;
}
}
)";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("test()"), encodeArgs(1));
BOOST_CHECK(storageEmpty(m_contractAddress));
}
BOOST_AUTO_TEST_CASE(invalid_enum_logged)
{
char const* sourceCode = R"(
contract C {
enum X { A, B }
event Log(X);
function test_log() public returns (uint) {
X garbled = X.A;
assembly {
garbled := 5
}
emit Log(garbled);
return 1;
}
function test_log_ok() public returns (uint) {
X x = X.A;
emit Log(x);
return 1;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("test_log_ok()"), encodeArgs(u256(1)));
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_REQUIRE_EQUAL(numLogTopics(0), 1);
BOOST_REQUIRE_EQUAL(logTopic(0, 0), util::keccak256(string("Log(uint8)")));
BOOST_CHECK_EQUAL(h256(logData(0)), h256(u256(0)));
// should throw
ABI_CHECK(callContractFunction("test_log()"), encodeArgs());
}
BOOST_AUTO_TEST_CASE(evm_exceptions_in_constructor_out_of_baund)
{
char const* sourceCode = R"(
contract A {
uint public test = 1;
uint[3] arr;
constructor()
{
uint index = 5;
test = arr[index];
++test;
}
}
)";
ABI_CHECK(compileAndRunWithoutCheck({{"", sourceCode}}, 0, "A"), encodeArgs());
BOOST_CHECK(!m_transactionSuccessful);
}
BOOST_AUTO_TEST_CASE(failing_send)
{
char const* sourceCode = R"(
contract Helper {
uint[] data;
fallback () external {
data[9]; // trigger exception
}
}
contract Main {
constructor() payable {}
function callHelper(address payable _a) public returns (bool r, uint bal) {
r = !_a.send(5);
bal = address(this).balance;
}
}
)";
compileAndRun(sourceCode, 0, "Helper");
h160 const c_helperAddress = m_contractAddress;
compileAndRun(sourceCode, 20, "Main");
BOOST_REQUIRE(callContractFunction("callHelper(address)", c_helperAddress) == encodeArgs(true, 20));
}
BOOST_AUTO_TEST_CASE(return_string)
{
char const* sourceCode = R"(
contract Main {
string public s;
function set(string calldata _s) external {
s = _s;
}
function get1() public returns (string memory r) {
return s;
}
function get2() public returns (string memory r) {
r = s;
}
}
)";
compileAndRun(sourceCode, 0, "Main");
string s("Julia");
bytes args = encodeArgs(u256(0x20), u256(s.length()), s);
BOOST_REQUIRE(callContractFunction("set(string)", asString(args)) == encodeArgs());
ABI_CHECK(callContractFunction("get1()"), args);
ABI_CHECK(callContractFunction("get2()"), args);
ABI_CHECK(callContractFunction("s()"), args);
}
BOOST_AUTO_TEST_CASE(return_multiple_strings_of_various_sizes)
{
char const* sourceCode = R"(
contract Main {
string public s1;
string public s2;
function set(string calldata _s1, uint x, string calldata _s2) external returns (uint) {
s1 = _s1;
s2 = _s2;
return x;
}
function get() public returns (string memory r1, string memory r2) {
r1 = s1;
r2 = s2;
}
}
)";
compileAndRun(sourceCode, 0, "Main");
string s1(
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
);
string s2(
"ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ"
"ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ"
"ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ"
"ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ"
"ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ"
);
vector<size_t> lengths{0, 30, 32, 63, 64, 65, 210, 300};
for (auto l1: lengths)
for (auto l2: lengths)
{
bytes dyn1 = encodeArgs(u256(l1), s1.substr(0, l1));
bytes dyn2 = encodeArgs(u256(l2), s2.substr(0, l2));
bytes args = encodeArgs(u256(0x60), u256(l1), u256(0x60 + dyn1.size())) + dyn1 + dyn2;
BOOST_REQUIRE(
callContractFunction("set(string,uint256,string)", asString(args)) ==
encodeArgs(u256(l1))
);
bytes result = encodeArgs(u256(0x40), u256(0x40 + dyn1.size())) + dyn1 + dyn2;
ABI_CHECK(callContractFunction("get()"), result);
ABI_CHECK(callContractFunction("s1()"), encodeArgs(0x20) + dyn1);
ABI_CHECK(callContractFunction("s2()"), encodeArgs(0x20) + dyn2);
}
}
BOOST_AUTO_TEST_CASE(accessor_involving_strings)
{
char const* sourceCode = R"(
contract Main {
struct stringData { string a; uint b; string c; }
mapping(uint => stringData[]) public data;
function set(uint x, uint y, string calldata a, uint b, string calldata c) external returns (bool) {
while (data[x].length < y + 1)
data[x].push();
data[x][y].a = a;
data[x][y].b = b;
data[x][y].c = c;
return true;
}
}
)";
compileAndRun(sourceCode, 0, "Main");
string s1("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
string s2("ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ");
bytes s1Data = encodeArgs(u256(s1.length()), s1);
bytes s2Data = encodeArgs(u256(s2.length()), s2);
u256 b = 765;
u256 x = 7;
u256 y = 123;
bytes args = encodeArgs(x, y, u256(0xa0), b, u256(0xa0 + s1Data.size()), s1Data, s2Data);
bytes result = encodeArgs(u256(0x60), b, u256(0x60 + s1Data.size()), s1Data, s2Data);
BOOST_REQUIRE(callContractFunction("set(uint256,uint256,string,uint256,string)", asString(args)) == encodeArgs(true));
BOOST_REQUIRE(callContractFunction("data(uint256,uint256)", x, y) == result);
}
BOOST_AUTO_TEST_CASE(bytes_in_function_calls)
{
char const* sourceCode = R"(
contract Main {
string public s1;
string public s2;
function set(string memory _s1, uint x, string memory _s2) public returns (uint) {
s1 = _s1;
s2 = _s2;
return x;
}
function setIndirectFromMemory(string memory _s1, uint x, string memory _s2) public returns (uint) {
return this.set(_s1, x, _s2);
}
function setIndirectFromCalldata(string calldata _s1, uint x, string calldata _s2) external returns (uint) {
return this.set(_s1, x, _s2);
}
}
)";
compileAndRun(sourceCode, 0, "Main");
string s1("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
string s2("ABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZABCDEFGHIJKLMNOPQRSTUVXYZ");
vector<size_t> lengths{0, 31, 64, 65};
for (auto l1: lengths)
for (auto l2: lengths)
{
bytes dyn1 = encodeArgs(u256(l1), s1.substr(0, l1));
bytes dyn2 = encodeArgs(u256(l2), s2.substr(0, l2));
bytes args1 = encodeArgs(u256(0x60), u256(l1), u256(0x60 + dyn1.size())) + dyn1 + dyn2;
BOOST_REQUIRE(
callContractFunction("setIndirectFromMemory(string,uint256,string)", asString(args1)) ==
encodeArgs(u256(l1))
);
ABI_CHECK(callContractFunction("s1()"), encodeArgs(0x20) + dyn1);
ABI_CHECK(callContractFunction("s2()"), encodeArgs(0x20) + dyn2);
// swapped
bytes args2 = encodeArgs(u256(0x60), u256(l1), u256(0x60 + dyn2.size())) + dyn2 + dyn1;
BOOST_REQUIRE(
callContractFunction("setIndirectFromCalldata(string,uint256,string)", asString(args2)) ==
encodeArgs(u256(l1))
);
ABI_CHECK(callContractFunction("s1()"), encodeArgs(0x20) + dyn2);
ABI_CHECK(callContractFunction("s2()"), encodeArgs(0x20) + dyn1);
}
}
BOOST_AUTO_TEST_CASE(return_bytes_internal)
{
char const* sourceCode = R"(
contract Main {
bytes s1;
function doSet(bytes memory _s1) public returns (bytes memory _r1) {
s1 = _s1;
_r1 = s1;
}
function set(bytes calldata _s1) external returns (uint _r, bytes memory _r1) {
_r1 = doSet(_s1);
_r = _r1.length;
}
}
)";
compileAndRun(sourceCode, 0, "Main");
string s1("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
vector<size_t> lengths{0, 31, 64, 65};
for (auto l1: lengths)
{
bytes dyn1 = encodeArgs(u256(l1), s1.substr(0, l1));
bytes args1 = encodeArgs(u256(0x20)) + dyn1;
BOOST_REQUIRE(
callContractFunction("set(bytes)", asString(args1)) ==
encodeArgs(u256(l1), u256(0x40)) + dyn1
);
}
}
BOOST_AUTO_TEST_CASE(memory_types_initialisation)
{
char const* sourceCode = R"(
contract Test {
mapping(uint=>uint) data;
function stat() public returns (uint[5] memory)
{
data[2] = 3; // make sure to use some memory
}
function dyn() public returns (uint[] memory) { stat(); }
function nested() public returns (uint[3][] memory) { stat(); }
function nestedStat() public returns (uint[3][7] memory) { stat(); }
}
)";
compileAndRun(sourceCode, 0, "Test");
ABI_CHECK(callContractFunction("stat()"), encodeArgs(vector<u256>(5)));
ABI_CHECK(callContractFunction("dyn()"), encodeArgs(u256(0x20), u256(0)));
ABI_CHECK(callContractFunction("nested()"), encodeArgs(u256(0x20), u256(0)));
ABI_CHECK(callContractFunction("nestedStat()"), encodeArgs(vector<u256>(3 * 7)));
}
BOOST_AUTO_TEST_CASE(calldata_struct_short)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S { uint256 a; uint256 b; }
function f(S calldata) external pure returns (uint256) {
return msg.data.length;
}
}
)";
compileAndRun(sourceCode, 0, "C");
// double check that the valid case goes through
ABI_CHECK(callContractFunction("f((uint256,uint256))", u256(1), u256(2)), encodeArgs(0x44));
ABI_CHECK(callContractFunctionNoEncoding("f((uint256,uint256))", bytes(63,0)), encodeArgs());
ABI_CHECK(callContractFunctionNoEncoding("f((uint256,uint256))", bytes(33,0)), encodeArgs());
ABI_CHECK(callContractFunctionNoEncoding("f((uint256,uint256))", bytes(32,0)), encodeArgs());
ABI_CHECK(callContractFunctionNoEncoding("f((uint256,uint256))", bytes(31,0)), encodeArgs());
ABI_CHECK(callContractFunctionNoEncoding("f((uint256,uint256))", bytes()), encodeArgs());
}
BOOST_AUTO_TEST_CASE(calldata_struct_function_type)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S { function (uint) external returns (uint) fn; }
function f(S calldata s) external returns (uint256) {
return s.fn(42);
}
function g(uint256 a) external returns (uint256) {
return a * 3;
}
function h(uint256 a) external returns (uint256) {
return 23;
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes fn_C_g = m_contractAddress.asBytes() + FixedHash<4>(util::keccak256("g(uint256)")).asBytes() + bytes(8,0);
bytes fn_C_h = m_contractAddress.asBytes() + FixedHash<4>(util::keccak256("h(uint256)")).asBytes() + bytes(8,0);
ABI_CHECK(callContractFunctionNoEncoding("f((function))", fn_C_g), encodeArgs(42 * 3));
ABI_CHECK(callContractFunctionNoEncoding("f((function))", fn_C_h), encodeArgs(23));
}
BOOST_AUTO_TEST_CASE(calldata_array_dynamic_three_dimensional)
{
vector<vector<vector<u256>>> data {
{
{ 0x010A01, 0x010A02, 0x010A03 },
{ 0x010B01, 0x010B02, 0x010B03 }
},
{
{ 0x020A01, 0x020A02, 0x020A03 },
{ 0x020B01, 0x020B02, 0x020B03 }
}
};
for (bool outerDynamicallySized: { true, false })
for (bool middleDynamicallySized: { true, false })
for (bool innerDynamicallySized: { true, false })
{
// only test dynamically encoded arrays
if (!outerDynamicallySized && !middleDynamicallySized && !innerDynamicallySized)
continue;
string arrayType = "uint256";
arrayType += innerDynamicallySized ? "[]" : "[3]";
arrayType += middleDynamicallySized ? "[]" : "[2]";
arrayType += outerDynamicallySized ? "[]" : "[2]";
string sourceCode = R"(
pragma abicoder v2;
contract C {
function test()" + arrayType + R"( calldata a) external returns (uint256) {
return a.length;
}
function test()" + arrayType + R"( calldata a, uint256 i) external returns (uint256) {
return a[i].length;
}
function test()" + arrayType + R"( calldata a, uint256 i, uint256 j) external returns (uint256) {
return a[i][j].length;
}
function test()" + arrayType + R"( calldata a, uint256 i, uint256 j, uint256 k) external returns (uint256) {
return a[i][j][k];
}
function reenc()" + arrayType + R"( calldata a, uint256 i, uint256 j, uint256 k) external returns (uint256) {
return this.test(a, i, j, k);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes encoding = encodeArray(
outerDynamicallySized,
middleDynamicallySized || innerDynamicallySized,
data | boost::adaptors::transformed([&](auto const& _middleData) {
return encodeArray(
middleDynamicallySized,
innerDynamicallySized,
_middleData | boost::adaptors::transformed([&](auto const& _values) {
return encodeArray(innerDynamicallySized, false, _values);
})
);
})
);
ABI_CHECK(callContractFunction("test(" + arrayType + ")", 0x20, encoding), encodeArgs(data.size()));
for (size_t i = 0; i < data.size(); i++)
{
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256)", 0x40, i, encoding), encodeArgs(data[i].size()));
for (size_t j = 0; j < data[i].size(); j++)
{
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256,uint256)", 0x60, i, j, encoding), encodeArgs(data[i][j].size()));
for (size_t k = 0; k < data[i][j].size(); k++)
{
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256,uint256,uint256)", 0x80, i, j, k, encoding), encodeArgs(data[i][j][k]));
ABI_CHECK(callContractFunction("reenc(" + arrayType + ",uint256,uint256,uint256)", 0x80, i, j, k, encoding), encodeArgs(data[i][j][k]));
}
// out of bounds access
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256,uint256,uint256)", 0x80, i, j, data[i][j].size(), encoding), encodeArgs());
}
// out of bounds access
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256,uint256)", 0x60, i, data[i].size(), encoding), encodeArgs());
}
// out of bounds access
ABI_CHECK(callContractFunction("test(" + arrayType + ",uint256)", 0x40, data.size(), encoding), encodeArgs());
}
}
BOOST_AUTO_TEST_CASE(literal_strings)
{
char const* sourceCode = R"(
contract Test {
string public long;
string public medium;
string public short;
string public empty;
function f() public returns (string memory) {
long = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
medium = "01234567890123456789012345678901234567890123456789012345678901234567890123456789";
short = "123";
empty = "";
return "Hello, World!";
}
}
)";
compileAndRun(sourceCode, 0, "Test");
string longStr = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
string medium = "01234567890123456789012345678901234567890123456789012345678901234567890123456789";
string shortStr = "123";
string hello = "Hello, World!";
ABI_CHECK(callContractFunction("f()"), encodeDyn(hello));
ABI_CHECK(callContractFunction("long()"), encodeDyn(longStr));
ABI_CHECK(callContractFunction("medium()"), encodeDyn(medium));
ABI_CHECK(callContractFunction("short()"), encodeDyn(shortStr));
ABI_CHECK(callContractFunction("empty()"), encodeDyn(string()));
}
BOOST_AUTO_TEST_CASE(initialise_string_constant)
{
char const* sourceCode = R"(
contract Test {
string public short = "abcdef";
string public long = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
}
)";
compileAndRun(sourceCode, 0, "Test");
string longStr = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
string shortStr = "abcdef";
ABI_CHECK(callContractFunction("long()"), encodeDyn(longStr));
ABI_CHECK(callContractFunction("short()"), encodeDyn(shortStr));
}
BOOST_AUTO_TEST_CASE(string_as_mapping_key)
{
char const* sourceCode = R"(
contract Test {
mapping(string => uint) data;
function set(string memory _s, uint _v) public { data[_s] = _v; }
function get(string memory _s) public returns (uint) { return data[_s]; }
}
)";
vector<string> strings{
"Hello, World!",
"Hello, World!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1111",
"",
"1"
};
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode, 0, "Test");
for (unsigned i = 0; i < strings.size(); i++)
ABI_CHECK(callContractFunction(
"set(string,uint256)",
u256(0x40),
u256(7 + i),
u256(strings[i].size()),
strings[i]
), encodeArgs());
for (unsigned i = 0; i < strings.size(); i++)
ABI_CHECK(callContractFunction(
"get(string)",
u256(0x20),
u256(strings[i].size()),
strings[i]
), encodeArgs(u256(7 + i)));
)
}
BOOST_AUTO_TEST_CASE(string_as_public_mapping_key)
{
char const* sourceCode = R"(
contract Test {
mapping(string => uint) public data;
function set(string memory _s, uint _v) public { data[_s] = _v; }
}
)";
compileAndRun(sourceCode, 0, "Test");
vector<string> strings{
"Hello, World!",
"Hello, World!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1111",
"",
"1"
};
for (unsigned i = 0; i < strings.size(); i++)
ABI_CHECK(callContractFunction(
"set(string,uint256)",
u256(0x40),
u256(7 + i),
u256(strings[i].size()),
strings[i]
), encodeArgs());
for (unsigned i = 0; i < strings.size(); i++)
ABI_CHECK(callContractFunction(
"data(string)",
u256(0x20),
u256(strings[i].size()),
strings[i]
), encodeArgs(u256(7 + i)));
}
BOOST_AUTO_TEST_CASE(nested_string_as_public_mapping_key)
{
char const* sourceCode = R"(
contract Test {
mapping(string => mapping(string => uint)) public data;
function set(string memory _s, string memory _s2, uint _v) public {
data[_s][_s2] = _v; }
}
)";
compileAndRun(sourceCode, 0, "Test");
vector<string> strings{
"Hello, World!",
"Hello, World!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1111",
"",
"1",
"last one"
};
for (unsigned i = 0; i + 1 < strings.size(); i++)
ABI_CHECK(callContractFunction(
"set(string,string,uint256)",
u256(0x60),
u256(roundTo32(static_cast<unsigned>(0x80 + strings[i].size()))),
u256(7 + i),
u256(strings[i].size()),
strings[i],
u256(strings[i+1].size()),
strings[i+1]
), encodeArgs());
for (unsigned i = 0; i + 1 < strings.size(); i++)
ABI_CHECK(callContractFunction(
"data(string,string)",
u256(0x40),
u256(roundTo32(static_cast<unsigned>(0x60 + strings[i].size()))),
u256(strings[i].size()),
strings[i],
u256(strings[i+1].size()),
strings[i+1]
), encodeArgs(u256(7 + i)));
}
BOOST_AUTO_TEST_CASE(nested_mixed_string_as_public_mapping_key)
{
char const* sourceCode = R"(
contract Test {
mapping(string =>
mapping(int =>
mapping(address =>
mapping(bytes => int)))) public data;
function set(
string memory _s1,
int _s2,
address _s3,
bytes memory _s4,
int _value
) public
{
data[_s1][_s2][_s3][_s4] = _value;
}
}
)";
compileAndRun(sourceCode, 0, "Test");
struct Index
{
string s1;
int s2;
int s3;
string s4;
};
vector<Index> data{
{ "aabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcbc", 4, 23, "efg" },
{ "tiaron", 456, 63245, "908apzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapzapz" },
{ "", 2345, 12934, "665i65i65i65i65i65i65i65i65i65i65i65i65i65i65i65i65i65i5iart" },
{ "¡¿…", 9781, 8148, "" },
{ "ρν♀♀ω₂₃♀", 929608, 303030, "" }
};
for (size_t i = 0; i + 1 < data.size(); i++)
ABI_CHECK(callContractFunction(
"set(string,int256,address,bytes,int256)",
u256(0xA0),
u256(data[i].s2),
u256(data[i].s3),
u256(roundTo32(static_cast<unsigned>(0xC0 + data[i].s1.size()))),
u256(i - 3),
u256(data[i].s1.size()),
data[i].s1,
u256(data[i].s4.size()),
data[i].s4
), encodeArgs());
for (size_t i = 0; i + 1 < data.size(); i++)
ABI_CHECK(callContractFunction(
"data(string,int256,address,bytes)",
u256(0x80),
u256(data[i].s2),
u256(data[i].s3),
u256(roundTo32(static_cast<unsigned>(0xA0 + data[i].s1.size()))),
u256(data[i].s1.size()),
data[i].s1,
u256(data[i].s4.size()),
data[i].s4
), encodeArgs(u256(i - 3)));
}
BOOST_AUTO_TEST_CASE(constant_string_literal)
{
char const* sourceCode = R"(
contract Test {
bytes32 constant public b = "abcdefghijklmnopq";
string constant public x = "abefghijklmnopqabcdefghijklmnopqabcdefghijklmnopqabca";
constructor() {
string memory xx = x;
bytes32 bb = b;
}
function getB() public returns (bytes32) { return b; }
function getX() public returns (string memory) { return x; }
function getX2() public returns (string memory r) { r = x; }
function unused() public returns (uint) {
"unusedunusedunusedunusedunusedunusedunusedunusedunusedunusedunusedunused";
return 2;
}
}
)";
compileAndRun(sourceCode);
string longStr = "abefghijklmnopqabcdefghijklmnopqabcdefghijklmnopqabca";
string shortStr = "abcdefghijklmnopq";
ABI_CHECK(callContractFunction("b()"), encodeArgs(shortStr));
ABI_CHECK(callContractFunction("x()"), encodeDyn(longStr));
ABI_CHECK(callContractFunction("getB()"), encodeArgs(shortStr));
ABI_CHECK(callContractFunction("getX()"), encodeDyn(longStr));
ABI_CHECK(callContractFunction("getX2()"), encodeDyn(longStr));
ABI_CHECK(callContractFunction("unused()"), encodeArgs(2));
}
BOOST_AUTO_TEST_CASE(library_call)
{
char const* sourceCode = R"(
library Lib { function m(uint x, uint y) public returns (uint) { return x * y; } }
contract Test {
function f(uint x) public returns (uint) {
return Lib.m(x, 9);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(33)), encodeArgs(u256(33) * 9));
}
BOOST_AUTO_TEST_CASE(library_function_external)
{
char const* sourceCode = R"(
library Lib { function m(bytes calldata b) external pure returns (byte) { return b[2]; } }
contract Test {
function f(bytes memory b) public pure returns (byte) {
return Lib.m(b);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f(bytes)", u256(0x20), u256(5), "abcde"), encodeArgs("c"));
}
BOOST_AUTO_TEST_CASE(library_stray_values)
{
char const* sourceCode = R"(
library Lib { function m(uint x, uint y) public returns (uint) { return x * y; } }
contract Test {
function f(uint x) public returns (uint) {
Lib;
Lib.m;
return x + 9;
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(33)), encodeArgs(u256(42)));
}
BOOST_AUTO_TEST_CASE(internal_types_in_library)
{
char const* sourceCode = R"(
library Lib {
function find(uint16[] storage _haystack, uint16 _needle) public view returns (uint)
{
for (uint i = 0; i < _haystack.length; ++i)
if (_haystack[i] == _needle)
return i;
return uint(-1);
}
}
contract Test {
mapping(string => uint16[]) data;
function f() public returns (uint a, uint b)
{
while (data["abc"].length < 20)
data["abc"].push();
data["abc"][4] = 9;
data["abc"][17] = 3;
a = Lib.find(data["abc"], 9);
b = Lib.find(data["abc"], 3);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
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, h160>{{"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, h160>{{"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, h160>{{"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_mappings_public)
{
char const* sourceCode = R"(
library Lib {
function set(mapping(uint => uint) storage m, uint key, uint value) public
{
m[key] = value;
}
}
contract Test {
mapping(uint => uint) m1;
mapping(uint => uint) m2;
function f() public returns (uint, uint, uint, uint, uint, uint)
{
Lib.set(m1, 0, 1);
Lib.set(m1, 2, 42);
Lib.set(m2, 0, 23);
Lib.set(m2, 2, 99);
return (m1[0], m1[1], m1[2], m2[0], m2[1], m2[2]);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1), u256(0), u256(42), u256(23), u256(0), u256(99)));
}
BOOST_AUTO_TEST_CASE(using_library_mappings_external)
{
char const* libSourceCode = R"(
library Lib {
function set(mapping(uint => uint) storage m, uint key, uint value) external
{
m[key] = value * 2;
}
}
)";
char const* sourceCode = R"(
library Lib {
function set(mapping(uint => uint) storage m, uint key, uint value) external {}
}
contract Test {
mapping(uint => uint) m1;
mapping(uint => uint) m2;
function f() public returns (uint, uint, uint, uint, uint, uint)
{
Lib.set(m1, 0, 1);
Lib.set(m1, 2, 42);
Lib.set(m2, 0, 23);
Lib.set(m2, 2, 99);
return (m1[0], m1[1], m1[2], m2[0], m2[1], m2[2]);
}
}
)";
for (auto v2: {false, true})
{
string prefix = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n";
compileAndRun(prefix + libSourceCode, 0, "Lib");
compileAndRun(prefix + sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(2), u256(0), u256(84), u256(46), u256(0), u256(198)));
}
}
BOOST_AUTO_TEST_CASE(using_library_mappings_return)
{
char const* sourceCode = R"(
library Lib {
function choose(mapping(uint => mapping(uint => uint)) storage m, uint key) external returns (mapping(uint => uint) storage) {
return m[key];
}
}
contract Test {
mapping(uint => mapping(uint => uint)) m;
function f() public returns (uint, uint, uint, uint, uint, uint)
{
Lib.choose(m, 0)[0] = 1;
Lib.choose(m, 0)[2] = 42;
Lib.choose(m, 1)[0] = 23;
Lib.choose(m, 1)[2] = 99;
return (m[0][0], m[0][1], m[0][2], m[1][0], m[1][1], m[1][2]);
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1), u256(0), u256(42), u256(23), u256(0), u256(99)));
}
BOOST_AUTO_TEST_CASE(using_library_structs)
{
char const* sourceCode = R"(
library Lib {
struct Data { uint a; uint[] b; }
function set(Data storage _s) public
{
_s.a = 7;
while (_s.b.length < 20)
_s.b.push();
_s.b[19] = 8;
}
}
contract Test {
mapping(string => Lib.Data) data;
function f() public returns (uint a, uint b)
{
Lib.set(data["abc"]);
a = data["abc"].a;
b = data["abc"].b[19];
}
}
)";
compileAndRun(sourceCode, 0, "Lib");
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"Lib", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(7), u256(8)));
}
BOOST_AUTO_TEST_CASE(short_strings)
{
// This test verifies that the byte array encoding that combines length and data works
// correctly.
char const* sourceCode = R"(
contract A {
bytes public data1 = "123";
bytes data2;
function lengthChange() public returns (uint)
{
// store constant in short and long string
data1 = "123";
if (!equal(data1, "123")) return 1;
data2 = "12345678901234567890123456789012345678901234567890a";
if (data2[17] != "8") return 3;
if (data2.length != 51) return 4;
if (data2[data2.length - 1] != "a") return 5;
// change length: short -> short
while (data1.length < 5)
data1.push();
if (data1.length != 5) return 6;
data1[4] = "4";
if (data1[0] != "1") return 7;
if (data1[4] != "4") return 8;
// change length: short -> long
while (data1.length < 80)
data1.push();
if (data1.length != 80) return 9;
while (data1.length > 70)
data1.pop();
if (data1.length != 70) return 9;
if (data1[0] != "1") return 10;
if (data1[4] != "4") return 11;
for (uint i = 0; i < data1.length; i ++)
data1[i] = byte(uint8(i * 3));
if (uint8(data1[4]) != 4 * 3) return 12;
if (uint8(data1[67]) != 67 * 3) return 13;
// change length: long -> short
while (data1.length > 22)
data1.pop();
if (data1.length != 22) return 14;
if (uint8(data1[21]) != 21 * 3) return 15;
if (uint8(data1[2]) != 2 * 3) return 16;
// change length: short -> shorter
while (data1.length > 19)
data1.pop();
if (data1.length != 19) return 17;
if (uint8(data1[7]) != 7 * 3) return 18;
// and now again to original size
while (data1.length < 22)
data1.push();
if (data1.length != 22) return 19;
if (data1[21] != 0) return 20;
while (data1.length > 0)
data1.pop();
while (data2.length > 0)
data2.pop();
}
function copy() public returns (uint) {
bytes memory x = "123";
bytes memory y = "012345678901234567890123456789012345678901234567890123456789";
bytes memory z = "1234567";
data1 = x;
data2 = y;
if (!equal(data1, x)) return 1;
if (!equal(data2, y)) return 2;
// lengthen
data1 = y;
if (!equal(data1, y)) return 3;
// shorten
data1 = x;
if (!equal(data1, x)) return 4;
// change while keeping short
data1 = z;
if (!equal(data1, z)) return 5;
// copy storage -> storage
data1 = x;
data2 = y;
// lengthen
data1 = data2;
if (!equal(data1, y)) return 6;
// shorten
data1 = x;
data2 = data1;
if (!equal(data2, x)) return 7;
bytes memory c = data2;
data1 = c;
if (!equal(data1, x)) return 8;
data1 = "";
data2 = "";
}
function deleteElements() public returns (uint) {
data1 = "01234";
delete data1[2];
if (data1[2] != 0) return 1;
if (data1[0] != "0") return 2;
if (data1[3] != "3") return 3;
delete data1;
if (data1.length != 0) return 4;
}
function equal(bytes storage a, bytes memory b) internal returns (bool) {
if (a.length != b.length) return false;
for (uint i = 0; i < a.length; ++i) if (a[i] != b[i]) return false;
return true;
}
}
)";
compileAndRun(sourceCode, 0, "A");
ABI_CHECK(callContractFunction("data1()"), encodeDyn(string("123")));
ABI_CHECK(callContractFunction("lengthChange()"), encodeArgs(u256(0)));
BOOST_CHECK(storageEmpty(m_contractAddress));
ABI_CHECK(callContractFunction("deleteElements()"), encodeArgs(u256(0)));
BOOST_CHECK(storageEmpty(m_contractAddress));
ABI_CHECK(callContractFunction("copy()"), encodeArgs(u256(0)));
BOOST_CHECK(storageEmpty(m_contractAddress));
}
BOOST_AUTO_TEST_CASE(calldata_offset)
{
// This tests a specific bug that was caused by not using the correct memory offset in the
// calldata unpacker.
char const* sourceCode = R"(
contract CB
{
address[] _arr;
string public last = "nd";
constructor(address[] memory guardians)
{
_arr = guardians;
}
}
)";
compileAndRun(sourceCode, 0, "CB", encodeArgs(u256(0x20), u256(0x00)));
ABI_CHECK(callContractFunction("last()", encodeArgs()), encodeDyn(string("nd")));
}
BOOST_AUTO_TEST_CASE(reject_ether_sent_to_library)
{
char const* sourceCode = R"(
library lib {}
contract c {
constructor() payable {}
function f(address payable x) public returns (bool) {
return x.send(1);
}
receive () external payable {}
}
)";
compileAndRun(sourceCode, 0, "lib");
Address libraryAddress = m_contractAddress;
compileAndRun(sourceCode, 10, "c");
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 10);
BOOST_CHECK_EQUAL(balanceAt(libraryAddress), 0);
ABI_CHECK(callContractFunction("f(address)", encodeArgs(libraryAddress)), encodeArgs(false));
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 10);
BOOST_CHECK_EQUAL(balanceAt(libraryAddress), 0);
ABI_CHECK(callContractFunction("f(address)", encodeArgs(m_contractAddress)), encodeArgs(true));
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 10);
BOOST_CHECK_EQUAL(balanceAt(libraryAddress), 0);
}
BOOST_AUTO_TEST_CASE(create_memory_array_allocation_size)
{
// Check allocation size of byte array. Should be 32 plus length rounded up to next
// multiple of 32
char const* sourceCode = R"(
contract C {
function f() public pure returns (uint d1, uint d2, uint d3, uint memsize) {
bytes memory b1 = new bytes(31);
bytes memory b2 = new bytes(32);
bytes memory b3 = new bytes(256);
bytes memory b4 = new bytes(31);
assembly {
d1 := sub(b2, b1)
d2 := sub(b3, b2)
d3 := sub(b4, b3)
memsize := msize()
}
}
}
)";
if (!m_optimiserSettings.runYulOptimiser)
{
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("f()"), encodeArgs(0x40, 0x40, 0x20 + 256, 0x260));
}
}
BOOST_AUTO_TEST_CASE(using_for_function_on_int)
{
char const* sourceCode = R"(
library D { function double(uint self) public returns (uint) { return 2*self; } }
contract C {
using D for uint;
function f(uint a) public returns (uint) {
return a.double();
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(9)), encodeArgs(u256(2 * 9)));
}
BOOST_AUTO_TEST_CASE(using_for_function_on_struct)
{
char const* sourceCode = R"(
library D { struct s { uint a; } function mul(s storage self, uint x) public returns (uint) { return self.a *= x; } }
contract C {
using D for D.s;
D.s public x;
function f(uint a) public returns (uint) {
x.a = 3;
return x.mul(a);
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(7)), encodeArgs(u256(3 * 7)));
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(3 * 7)));
}
BOOST_AUTO_TEST_CASE(using_for_overload)
{
char const* sourceCode = R"(
library D {
struct s { uint a; }
function mul(s storage self, uint x) public returns (uint) { return self.a *= x; }
function mul(s storage self, bytes32 x) public returns (bytes32) { }
}
contract C {
using D for D.s;
D.s public x;
function f(uint a) public returns (uint) {
x.a = 6;
return x.mul(a);
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(7)), encodeArgs(u256(6 * 7)));
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(6 * 7)));
}
BOOST_AUTO_TEST_CASE(using_for_by_name)
{
char const* sourceCode = R"(
library D { struct s { uint a; } function mul(s storage self, uint x) public returns (uint) { return self.a *= x; } }
contract C {
using D for D.s;
D.s public x;
function f(uint a) public returns (uint) {
x.a = 6;
return x.mul({x: a});
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(7)), encodeArgs(u256(6 * 7)));
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(6 * 7)));
}
BOOST_AUTO_TEST_CASE(bound_function_in_function)
{
char const* sourceCode = R"(
library L {
function g(function() internal returns (uint) _t) internal returns (uint) { return _t(); }
}
contract C {
using L for *;
function f() public returns (uint) {
return t.g();
}
function t() public pure returns (uint) { return 7; }
}
)";
compileAndRun(sourceCode, 0, "L");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"L", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(7)));
}
BOOST_AUTO_TEST_CASE(bound_function_in_var)
{
char const* sourceCode = R"(
library D { struct s { uint a; } function mul(s storage self, uint x) public returns (uint) { return self.a *= x; } }
contract C {
using D for D.s;
D.s public x;
function f(uint a) public returns (uint) {
x.a = 6;
return (x.mul)({x: a});
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f(uint256)", u256(7)), encodeArgs(u256(6 * 7)));
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(6 * 7)));
}
BOOST_AUTO_TEST_CASE(bound_function_to_string)
{
char const* sourceCode = R"(
library D { function length(string memory self) public returns (uint) { return bytes(self).length; } }
contract C {
using D for string;
string x;
function f() public returns (uint) {
x = "abc";
return x.length();
}
function g() public returns (uint) {
string memory s = "abc";
return s.length();
}
}
)";
compileAndRun(sourceCode, 0, "D");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"D", m_contractAddress}});
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(3)));
ABI_CHECK(callContractFunction("g()"), encodeArgs(u256(3)));
}
BOOST_AUTO_TEST_CASE(inline_long_string_return)
{
char const* sourceCode = R"(
contract C {
function f() public returns (string memory) {
return (["somethingShort", "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"][1]);
}
}
)";
string strLong = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678900123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789001234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f()"), encodeDyn(strLong));
}
BOOST_AUTO_TEST_CASE(index_access_with_type_conversion)
{
// Test for a bug where higher order bits cleanup was not done for array index access.
char const* sourceCode = R"(
contract C {
function f(uint x) public returns (uint[256] memory r){
r[uint8(x)] = 2;
}
}
)";
compileAndRun(sourceCode, 0, "C");
// neither of the two should throw due to out-of-bounds access
BOOST_CHECK(callContractFunction("f(uint256)", u256(0x01)).size() == 256 * 32);
BOOST_CHECK(callContractFunction("f(uint256)", u256(0x101)).size() == 256 * 32);
}
BOOST_AUTO_TEST_CASE(failed_create)
{
char const* sourceCode = R"(
contract D { constructor() payable {} }
contract C {
uint public x;
constructor() payable {}
function f(uint amount) public returns (D) {
x++;
return (new D){value: amount}();
}
function stack(uint depth) public returns (address) {
if (depth < 1024)
return this.stack(depth - 1);
else
return address(f(0));
}
}
)";
compileAndRun(sourceCode, 20, "C");
BOOST_CHECK(callContractFunction("f(uint256)", 20) != encodeArgs(u256(0)));
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(1)));
ABI_CHECK(callContractFunction("f(uint256)", 20), encodeArgs());
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(1)));
ABI_CHECK(callContractFunction("stack(uint256)", 1023), encodeArgs());
ABI_CHECK(callContractFunction("x()"), encodeArgs(u256(1)));
}
BOOST_AUTO_TEST_CASE(correctly_initialize_memory_array_in_constructor)
{
// Memory arrays are initialized using calldatacopy past the size of the calldata.
// This test checks that it also works in the constructor context.
char const* sourceCode = R"(
contract C {
bool public success;
constructor() {
// Make memory dirty.
assembly {
for { let i := 0 } lt(i, 64) { i := add(i, 1) } {
mstore(msize(), not(0))
}
}
uint16[3] memory c;
require(c[0] == 0 && c[1] == 0 && c[2] == 0);
uint16[] memory x = new uint16[](3);
require(x[0] == 0 && x[1] == 0 && x[2] == 0);
success = true;
}
}
)";
// Cannot run against yul optimizer because of msize
if (!m_optimiserSettings.runYulOptimiser)
{
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("success()"), encodeArgs(u256(1)));
}
}
BOOST_AUTO_TEST_CASE(mutex)
{
char const* sourceCode = R"(
contract mutexed {
bool locked;
modifier protected {
if (locked) revert();
locked = true;
_;
locked = false;
}
}
contract Fund is mutexed {
uint shares;
constructor() payable { shares = msg.value; }
function withdraw(uint amount) public protected returns (uint) {
// NOTE: It is very bad practice to write this function this way.
// Please refer to the documentation of how to do this properly.
if (amount > shares) revert();
(bool success,) = msg.sender.call{value: amount}("");
require(success);
shares -= amount;
return shares;
}
function withdrawUnprotected(uint amount) public returns (uint) {
// NOTE: It is very bad practice to write this function this way.
// Please refer to the documentation of how to do this properly.
if (amount > shares) revert();
(bool success,) = msg.sender.call{value: amount}("");
require(success);
shares -= amount;
return shares;
}
}
contract Attacker {
Fund public fund;
uint callDepth;
bool protected;
function setProtected(bool _protected) public { protected = _protected; }
constructor(Fund _fund) { fund = _fund; }
function attack() public returns (uint) {
callDepth = 0;
return attackInternal();
}
function attackInternal() internal returns (uint) {
if (protected)
return fund.withdraw(10);
else
return fund.withdrawUnprotected(10);
}
fallback() external payable {
callDepth++;
if (callDepth < 4)
attackInternal();
}
}
)";
compileAndRun(sourceCode, 500, "Fund");
h160 const fund = m_contractAddress;
BOOST_CHECK_EQUAL(balanceAt(fund), 500);
compileAndRun(sourceCode, 0, "Attacker", encodeArgs(fund));
ABI_CHECK(callContractFunction("setProtected(bool)", true), encodeArgs());
ABI_CHECK(callContractFunction("attack()"), encodeArgs());
BOOST_CHECK_EQUAL(balanceAt(fund), 500);
ABI_CHECK(callContractFunction("setProtected(bool)", false), encodeArgs());
ABI_CHECK(callContractFunction("attack()"), encodeArgs(u256(460)));
BOOST_CHECK_EQUAL(balanceAt(fund), 460);
}
BOOST_AUTO_TEST_CASE(payable_function)
{
char const* sourceCode = R"(
contract C {
uint public a;
function f() payable public returns (uint) {
return msg.value;
}
fallback() external payable {
a = msg.value + 1;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunctionWithValue("f()", 27), encodeArgs(u256(27)));
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 27);
ABI_CHECK(callContractFunctionWithValue("", 27), encodeArgs());
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 27 + 27);
ABI_CHECK(callContractFunction("a()"), encodeArgs(u256(28)));
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 27 + 27);
}
BOOST_AUTO_TEST_CASE(payable_function_calls_library)
{
char const* sourceCode = R"(
library L {
function f() public returns (uint) { return 7; }
}
contract C {
function f() public payable returns (uint) {
return L.f();
}
}
)";
compileAndRun(sourceCode, 0, "L");
compileAndRun(sourceCode, 0, "C", bytes(), map<string, h160>{{"L", m_contractAddress}});
ABI_CHECK(callContractFunctionWithValue("f()", 27), encodeArgs(u256(7)));
}
BOOST_AUTO_TEST_CASE(non_payable_throw)
{
char const* sourceCode = R"(
contract C {
uint public a;
function f() public returns (uint) {
return msgvalue();
}
function msgvalue() internal returns (uint) {
return msg.value;
}
fallback() external {
update();
}
function update() internal {
a = msg.value + 1;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunctionWithValue("f()", 27), encodeArgs());
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 0);
ABI_CHECK(callContractFunction(""), encodeArgs());
ABI_CHECK(callContractFunction("a()"), encodeArgs(u256(1)));
ABI_CHECK(callContractFunctionWithValue("", 27), encodeArgs());
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 0);
ABI_CHECK(callContractFunction("a()"), encodeArgs(u256(1)));
ABI_CHECK(callContractFunctionWithValue("a()", 27), encodeArgs());
BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 0);
}
BOOST_AUTO_TEST_CASE(mem_resize_is_not_paid_at_call)
{
// This tests that memory resize for return values is not paid during the call, which would
// make the gas calculation overly complex. We access the end of the output area before
// the call is made.
// Tests that this also survives the optimizer.
char const* sourceCode = R"(
contract C {
function f() public returns (uint[200] memory) {}
}
contract D {
function f(C c) public returns (uint) { c.f(); return 7; }
}
)";
compileAndRun(sourceCode, 0, "C");
h160 const cAddr = m_contractAddress;
compileAndRun(sourceCode, 0, "D");
ABI_CHECK(callContractFunction("f(address)", cAddr), encodeArgs(u256(7)));
}
BOOST_AUTO_TEST_CASE(receive_external_function_type)
{
char const* sourceCode = R"(
contract C {
function g() public returns (uint) { return 7; }
function f(function() external returns (uint) g) public returns (uint) {
return g();
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction(
"f(function)",
m_contractAddress.asBytes() + FixedHash<4>(util::keccak256("g()")).asBytes() + bytes(32 - 4 - 20, 0)
), encodeArgs(u256(7)));
}
BOOST_AUTO_TEST_CASE(return_external_function_type)
{
char const* sourceCode = R"(
contract C {
function g() public {}
function f() public returns (function() external) {
return this.g;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(
callContractFunction("f()"),
m_contractAddress.asBytes() + FixedHash<4>(util::keccak256("g()")).asBytes() + bytes(32 - 4 - 20, 0)
);
}
// TODO: store bound internal library functions
BOOST_AUTO_TEST_CASE(shift_bytes)
{
char const* sourceCode = R"(
contract C {
function left(bytes20 x, uint8 y) public returns (bytes20) {
return x << y;
}
function right(bytes20 x, uint8 y) public returns (bytes20) {
return x >> y;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("left(bytes20,uint8)", "12345678901234567890", 8 * 8), encodeArgs("901234567890" + string(8, 0)));
ABI_CHECK(callContractFunction("right(bytes20,uint8)", "12345678901234567890", 8 * 8), encodeArgs(string(8, 0) + "123456789012"));
}
BOOST_AUTO_TEST_CASE(shift_bytes_cleanup)
{
char const* sourceCode = R"(
contract C {
function left(uint8 y) public returns (bytes20) {
bytes20 x;
assembly { x := "12345678901234567890abcde" }
return x << y;
}
function right(uint8 y) public returns (bytes20) {
bytes20 x;
assembly { x := "12345678901234567890abcde" }
return x >> y;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("left(uint8)", 8 * 8), encodeArgs("901234567890" + string(8, 0)));
ABI_CHECK(callContractFunction("right(uint8)", 8 * 8), encodeArgs(string(8, 0) + "123456789012"));
}
BOOST_AUTO_TEST_CASE(contracts_separated_with_comment)
{
char const* sourceCode = R"(
contract C1 {}
/**
**/
contract C2 {}
)";
ALSO_VIA_YUL(
DISABLE_EWASM_TESTRUN()
compileAndRun(sourceCode, 0, "C1");
compileAndRun(sourceCode, 0, "C2");
)
}
BOOST_AUTO_TEST_CASE(include_creation_bytecode_only_once)
{
char const* sourceCode = R"(
contract D {
bytes a = hex"1237651237125387136581271652831736512837126583171583712358126123765123712538713658127165283173651283712658317158371235812612376512371253871365812716528317365128371265831715837123581261237651237125387136581271652831736512837126583171583712358126";
bytes b = hex"1237651237125327136581271252831736512837126583171383712358126123765125712538713658127165253173651283712658357158371235812612376512371a5387136581271652a317365128371265a317158371235812612a765123712538a13658127165a83173651283712a58317158371235a126";
constructor(uint) {}
}
contract Double {
function f() public {
new D(2);
}
function g() public {
new D(3);
}
}
contract Single {
function f() public {
new D(2);
}
}
)";
compileAndRun(sourceCode);
BOOST_CHECK_LE(
double(m_compiler.object("Double").bytecode.size()),
1.2 * double(m_compiler.object("Single").bytecode.size())
);
}
BOOST_AUTO_TEST_CASE(revert_with_cause)
{
char const* sourceCode = R"(
contract D {
string constant msg1 = "test1234567890123456789012345678901234567890";
string msg2 = "test1234567890123456789012345678901234567890";
function f() public {
revert("test123");
}
function g() public {
revert("test1234567890123456789012345678901234567890");
}
function h() public {
revert(msg1);
}
function i() public {
revert(msg2);
}
function j() public {
string memory msg3 = "test1234567890123456789012345678901234567890";
revert(msg3);
}
}
contract C {
D d = new D();
function forward(address target, bytes memory data) internal returns (bool success, bytes memory retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function h() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function i() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function j() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
}
)";
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
compileAndRun(sourceCode, 0, "C");
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "test123") + bytes(28, 0));
ABI_CHECK(callContractFunction("g()"), encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0));
ABI_CHECK(callContractFunction("h()"), encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0));
ABI_CHECK(callContractFunction("i()"), encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0));
ABI_CHECK(callContractFunction("j()"), encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0));
}
}
BOOST_AUTO_TEST_CASE(require_with_message)
{
char const* sourceCode = R"(
contract D {
bool flag = false;
string storageError = "abc";
string constant constantError = "abc";
function f(uint x) public {
require(x > 7, "failed");
}
function g() public {
// As a side-effect of internalFun, the flag will be set to true
// (even if the condition is true),
// but it will only throw in the next evaluation.
bool flagCopy = flag;
require(flagCopy == false, internalFun());
}
function internalFun() public returns (string memory) {
flag = true;
return "only on second run";
}
function h() public {
require(false, storageError);
}
function i() public {
require(false, constantError);
}
function j() public {
string memory errMsg = "msg";
require(false, errMsg);
}
}
contract C {
D d = new D();
function forward(address target, bytes memory data) internal returns (bool success, bytes memory retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f(uint x) public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function h() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function i() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function j() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
}
)";
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
compileAndRun(sourceCode, 0, "C");
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f(uint256)", 8), encodeArgs(1, 0x40, 0));
ABI_CHECK(callContractFunction("f(uint256)", 5), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 6, "failed") + bytes(28, 0));
ABI_CHECK(callContractFunction("g()"), encodeArgs(1, 0x40, 0));
ABI_CHECK(callContractFunction("g()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 18, "only on second run") + bytes(28, 0));
ABI_CHECK(callContractFunction("h()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "abc") + bytes(28, 0));
ABI_CHECK(callContractFunction("i()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "abc") + bytes(28, 0));
ABI_CHECK(callContractFunction("j()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "msg") + bytes(28, 0));
}
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages)
{
char const* sourceCode = R"(
contract D {
function f() public {
revert("message");
}
function g() public {
this.f();
}
}
contract C {
D d = new D();
function forward(address target, bytes memory data) internal returns (bool success, bytes memory retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
}
)";
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
compileAndRun(sourceCode, 0, "C");
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0));
ABI_CHECK(callContractFunction("g()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0));
}
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages_through_transfer)
{
char const* sourceCode = R"(
contract D {
receive() external payable {
revert("message");
}
function f() public {
address(this).transfer(0);
}
}
contract C {
D d = new D();
function forward(address target, bytes memory data) internal returns (bool success, bytes memory retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
}
)";
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
compileAndRun(sourceCode, 0, "C");
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0));
}
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages_through_create)
{
char const* sourceCode = R"(
contract E {
constructor() {
revert("message");
}
}
contract D {
function f() public {
E x = new E();
}
}
contract C {
D d = new D();
function forward(address target, bytes memory data) internal returns (bool success, bytes memory retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes memory) {
return forward(address(d), msg.data);
}
}
)";
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
compileAndRun(sourceCode, 0, "C");
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0));
}
}
BOOST_AUTO_TEST_CASE(interface_contract)
{
char const* sourceCode = R"(
interface I {
event A();
function f() external returns (bool);
fallback() external payable;
}
contract A is I {
function f() public override returns (bool) {
return g();
}
function g() public returns (bool) {
return true;
}
fallback() override external payable {
}
}
contract C {
function f(address payable _interfaceAddress) public returns (bool) {
I i = I(_interfaceAddress);
return i.f();
}
}
)";
compileAndRun(sourceCode, 0, "A");
h160 const recipient = m_contractAddress;
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f(address)", recipient), encodeArgs(true));
}
BOOST_AUTO_TEST_CASE(bare_call_invalid_address)
{
char const* sourceCode = R"YY(
contract C {
/// Calling into non-existent account is successful (creates the account)
function f() external returns (bool) {
(bool success,) = address(0x4242).call("");
return success;
}
function h() external returns (bool) {
(bool success,) = address(0x4242).delegatecall("");
return success;
}
}
)YY";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1)));
ABI_CHECK(callContractFunction("h()"), encodeArgs(u256(1)));
if (solidity::test::CommonOptions::get().evmVersion().hasStaticCall())
{
char const* sourceCode = R"YY(
contract C {
function f() external returns (bool, bytes memory) {
return address(0x4242).staticcall("");
}
}
)YY";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1), 0x40, 0x00));
}
}
BOOST_AUTO_TEST_CASE(bare_call_return_data)
{
if (solidity::test::CommonOptions::get().evmVersion().supportsReturndata())
{
vector<string> calltypes = {"call", "delegatecall"};
if (solidity::test::CommonOptions::get().evmVersion().hasStaticCall())
calltypes.emplace_back("staticcall");
for (string const& calltype: calltypes)
{
string sourceCode = R"DELIMITER(
contract A {
constructor() {
}
function return_bool() public pure returns(bool) {
return true;
}
function return_int32() public pure returns(int32) {
return -32;
}
function return_uint32() public pure returns(uint32) {
return 0x3232;
}
function return_int256() public pure returns(int256) {
return -256;
}
function return_uint256() public pure returns(uint256) {
return 0x256256;
}
function return_bytes4() public pure returns(bytes4) {
return 0xabcd0012;
}
function return_multi() public pure returns(bool, uint32, bytes4) {
return (false, 0x3232, 0xabcd0012);
}
function return_bytes() public pure returns(bytes memory b) {
b = new bytes(2);
b[0] = 0x42;
b[1] = 0x21;
}
}
contract C {
A addr;
constructor() {
addr = new A();
}
function f(string memory signature) public returns (bool, bytes memory) {
return address(addr).)DELIMITER" + calltype + R"DELIMITER((abi.encodeWithSignature(signature));
}
function check_bool() external returns (bool) {
(bool success, bytes memory data) = f("return_bool()");
assert(success);
bool a = abi.decode(data, (bool));
assert(a);
return true;
}
function check_int32() external returns (bool) {
(bool success, bytes memory data) = f("return_int32()");
assert(success);
int32 a = abi.decode(data, (int32));
assert(a == -32);
return true;
}
function check_uint32() external returns (bool) {
(bool success, bytes memory data) = f("return_uint32()");
assert(success);
uint32 a = abi.decode(data, (uint32));
assert(a == 0x3232);
return true;
}
function check_int256() external returns (bool) {
(bool success, bytes memory data) = f("return_int256()");
assert(success);
int256 a = abi.decode(data, (int256));
assert(a == -256);
return true;
}
function check_uint256() external returns (bool) {
(bool success, bytes memory data) = f("return_uint256()");
assert(success);
uint256 a = abi.decode(data, (uint256));
assert(a == 0x256256);
return true;
}
function check_bytes4() external returns (bool) {
(bool success, bytes memory data) = f("return_bytes4()");
assert(success);
bytes4 a = abi.decode(data, (bytes4));
assert(a == 0xabcd0012);
return true;
}
function check_multi() external returns (bool) {
(bool success, bytes memory data) = f("return_multi()");
assert(success);
(bool a, uint32 b, bytes4 c) = abi.decode(data, (bool, uint32, bytes4));
assert(a == false && b == 0x3232 && c == 0xabcd0012);
return true;
}
function check_bytes() external returns (bool) {
(bool success, bytes memory data) = f("return_bytes()");
assert(success);
(bytes memory d) = abi.decode(data, (bytes));
assert(d.length == 2 && d[0] == 0x42 && d[1] == 0x21);
return true;
}
}
)DELIMITER";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bool()"))), encodeArgs(true, 0x40, 0x20, true));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_int32()"))), encodeArgs(true, 0x40, 0x20, u256(-32)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_uint32()"))), encodeArgs(true, 0x40, 0x20, u256(0x3232)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_int256()"))), encodeArgs(true, 0x40, 0x20, u256(-256)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_uint256()"))), encodeArgs(true, 0x40, 0x20, u256(0x256256)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bytes4()"))), encodeArgs(true, 0x40, 0x20, u256(0xabcd0012) << (28*8)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_multi()"))), encodeArgs(true, 0x40, 0x60, false, u256(0x3232), u256(0xabcd0012) << (28*8)));
ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bytes()"))), encodeArgs(true, 0x40, 0x60, 0x20, 0x02, encode(bytes{0x42,0x21}, false)));
ABI_CHECK(callContractFunction("check_bool()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_int32()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_uint32()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_int256()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_uint256()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_bytes4()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_multi()"), encodeArgs(true));
ABI_CHECK(callContractFunction("check_bytes()"), encodeArgs(true));
}
}
}
BOOST_AUTO_TEST_CASE(abi_encodePacked)
{
char const* sourceCode = R"(
contract C {
function f0() public pure returns (bytes memory) {
return abi.encodePacked();
}
function f1() public pure returns (bytes memory) {
return abi.encodePacked(uint8(1), uint8(2));
}
function f2() public pure returns (bytes memory) {
string memory x = "abc";
return abi.encodePacked(uint8(1), x, uint8(2));
}
function f3() public pure returns (bytes memory r) {
// test that memory is properly allocated
string memory x = "abc";
r = abi.encodePacked(uint8(1), x, uint8(2));
bytes memory y = "def";
require(y[0] == "d");
y[0] = "e";
require(y[0] == "e");
}
function f4() public pure returns (bytes memory) {
string memory x = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz";
return abi.encodePacked(uint16(0x0701), x, uint16(0x1201));
}
function f_literal() public pure returns (bytes memory) {
return abi.encodePacked(uint8(0x01), "abc", uint8(0x02));
}
function f_calldata() public pure returns (bytes memory) {
return abi.encodePacked(uint8(0x01), msg.data, uint8(0x02));
}
}
)";
for (auto v2: {false, true})
{
string prefix = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n";
compileAndRun(prefix + sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f0()"), encodeArgs(0x20, 0));
ABI_CHECK(callContractFunction("f1()"), encodeArgs(0x20, 2, "\x01\x02"));
ABI_CHECK(callContractFunction("f2()"), encodeArgs(0x20, 5, "\x01" "abc" "\x02"));
ABI_CHECK(callContractFunction("f3()"), encodeArgs(0x20, 5, "\x01" "abc" "\x02"));
ABI_CHECK(callContractFunction("f4()"), encodeArgs(0x20, 2 + 26 + 26 + 2, "\x07\x01" "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" "\x12\x01"));
ABI_CHECK(callContractFunction("f_literal()"), encodeArgs(0x20, 5, "\x01" "abc" "\x02"));
ABI_CHECK(callContractFunction("f_calldata()"), encodeArgs(0x20, 6, "\x01" "\xa5\xbf\xa1\xee" "\x02"));
}
}
BOOST_AUTO_TEST_CASE(abi_encodePacked_from_storage)
{
char const* sourceCode = R"(
contract C {
uint24[9] small_fixed;
int24[9] small_fixed_signed;
uint24[] small_dyn;
uint248[5] large_fixed;
uint248[] large_dyn;
bytes bytes_storage;
function sf() public returns (bytes memory) {
small_fixed[0] = 0xfffff1;
small_fixed[2] = 0xfffff2;
small_fixed[5] = 0xfffff3;
small_fixed[8] = 0xfffff4;
return abi.encodePacked(uint8(0x01), small_fixed, uint8(0x02));
}
function sd() public returns (bytes memory) {
small_dyn.push(0xfffff1);
small_dyn.push(0x00);
small_dyn.push(0xfffff2);
small_dyn.push(0x00);
small_dyn.push(0x00);
small_dyn.push(0xfffff3);
small_dyn.push(0x00);
small_dyn.push(0x00);
small_dyn.push(0xfffff4);
return abi.encodePacked(uint8(0x01), small_dyn, uint8(0x02));
}
function sfs() public returns (bytes memory) {
small_fixed_signed[0] = -2;
small_fixed_signed[2] = 0xffff2;
small_fixed_signed[5] = -200;
small_fixed_signed[8] = 0xffff4;
return abi.encodePacked(uint8(0x01), small_fixed_signed, uint8(0x02));
}
function lf() public returns (bytes memory) {
large_fixed[0] = 2**248-1;
large_fixed[1] = 0xfffff2;
large_fixed[2] = 2**248-2;
large_fixed[4] = 0xfffff4;
return abi.encodePacked(uint8(0x01), large_fixed, uint8(0x02));
}
function ld() public returns (bytes memory) {
large_dyn.push(2**248-1);
large_dyn.push(0xfffff2);
large_dyn.push(2**248-2);
large_dyn.push(0);
large_dyn.push(0xfffff4);
return abi.encodePacked(uint8(0x01), large_dyn, uint8(0x02));
}
function bytes_short() public returns (bytes memory) {
bytes_storage = "abcd";
return abi.encodePacked(uint8(0x01), bytes_storage, uint8(0x02));
}
function bytes_long() public returns (bytes memory) {
bytes_storage = "0123456789012345678901234567890123456789";
return abi.encodePacked(uint8(0x01), bytes_storage, uint8(0x02));
}
}
)";
for (auto v2: {false, true})
{
string prefix = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n";
compileAndRun(prefix + sourceCode, 0, "C");
bytes payload = encodeArgs(0xfffff1, 0, 0xfffff2, 0, 0, 0xfffff3, 0, 0, 0xfffff4);
bytes encoded = encodeArgs(0x20, 0x122, "\x01" + asString(payload) + "\x02");
ABI_CHECK(callContractFunction("sf()"), encoded);
ABI_CHECK(callContractFunction("sd()"), encoded);
ABI_CHECK(callContractFunction("sfs()"), encodeArgs(0x20, 0x122, "\x01" + asString(encodeArgs(
u256(-2), 0, 0xffff2, 0, 0, u256(-200), 0, 0, 0xffff4
)) + "\x02"));
payload = encodeArgs(
u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"),
0xfffff2,
u256("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe"),
0,
0xfffff4
);
ABI_CHECK(callContractFunction("lf()"), encodeArgs(0x20, 5 * 32 + 2, "\x01" + asString(encodeArgs(payload)) + "\x02"));
ABI_CHECK(callContractFunction("ld()"), encodeArgs(0x20, 5 * 32 + 2, "\x01" + asString(encodeArgs(payload)) + "\x02"));
ABI_CHECK(callContractFunction("bytes_short()"), encodeArgs(0x20, 6, "\x01" "abcd\x02"));
ABI_CHECK(callContractFunction("bytes_long()"), encodeArgs(0x20, 42, "\x01" "0123456789012345678901234567890123456789\x02"));
}
}
BOOST_AUTO_TEST_CASE(abi_encodePacked_from_memory)
{
char const* sourceCode = R"(
contract C {
function sf() public pure returns (bytes memory) {
uint24[9] memory small_fixed;
small_fixed[0] = 0xfffff1;
small_fixed[2] = 0xfffff2;
small_fixed[5] = 0xfffff3;
small_fixed[8] = 0xfffff4;
return abi.encodePacked(uint8(0x01), small_fixed, uint8(0x02));
}
function sd() public pure returns (bytes memory) {
uint24[] memory small_dyn = new uint24[](9);
small_dyn[0] = 0xfffff1;
small_dyn[2] = 0xfffff2;
small_dyn[5] = 0xfffff3;
small_dyn[8] = 0xfffff4;
return abi.encodePacked(uint8(0x01), small_dyn, uint8(0x02));
}
function sfs() public pure returns (bytes memory) {
int24[9] memory small_fixed_signed;
small_fixed_signed[0] = -2;
small_fixed_signed[2] = 0xffff2;
small_fixed_signed[5] = -200;
small_fixed_signed[8] = 0xffff4;
return abi.encodePacked(uint8(0x01), small_fixed_signed, uint8(0x02));
}
function lf() public pure returns (bytes memory) {
uint248[5] memory large_fixed;
large_fixed[0] = 2**248-1;
large_fixed[1] = 0xfffff2;
large_fixed[2] = 2**248-2;
large_fixed[4] = 0xfffff4;
return abi.encodePacked(uint8(0x01), large_fixed, uint8(0x02));
}
function ld() public pure returns (bytes memory) {
uint248[] memory large_dyn = new uint248[](5);
large_dyn[0] = 2**248-1;
large_dyn[1] = 0xfffff2;
large_dyn[2] = 2**248-2;
large_dyn[4] = 0xfffff4;
return abi.encodePacked(uint8(0x01), large_dyn, uint8(0x02));
}
}
)";
for (auto v2: {false, true})
{
string prefix = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n";
compileAndRun(prefix + sourceCode, 0, "C");
bytes payload = encodeArgs(0xfffff1, 0, 0xfffff2, 0, 0, 0xfffff3, 0, 0, 0xfffff4);
bytes encoded = encodeArgs(0x20, 0x122, "\x01" + asString(payload) + "\x02");
ABI_CHECK(callContractFunction("sf()"), encoded);
ABI_CHECK(callContractFunction("sd()"), encoded);
ABI_CHECK(callContractFunction("sfs()"), encodeArgs(0x20, 0x122, "\x01" + asString(encodeArgs(
u256(-2), 0, 0xffff2, 0, 0, u256(-200), 0, 0, 0xffff4
)) + "\x02"));
payload = encodeArgs(
u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"),
0xfffff2,
u256("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe"),
0,
0xfffff4
);
ABI_CHECK(callContractFunction("lf()"), encodeArgs(0x20, 5 * 32 + 2, "\x01" + asString(encodeArgs(payload)) + "\x02"));
ABI_CHECK(callContractFunction("ld()"), encodeArgs(0x20, 5 * 32 + 2, "\x01" + asString(encodeArgs(payload)) + "\x02"));
}
}
BOOST_AUTO_TEST_CASE(abi_encodePacked_functionPtr)
{
char const* sourceCode = R"(
contract C {
C other = C(0x1112131400000000000011121314000000000087);
function testDirect() public view returns (bytes memory) {
return abi.encodePacked(uint8(8), other.f, uint8(2));
}
function testFixedArray() public view returns (bytes memory) {
function () external pure returns (bytes memory)[1] memory x;
x[0] = other.f;
return abi.encodePacked(uint8(8), x, uint8(2));
}
function testDynamicArray() public view returns (bytes memory) {
function () external pure returns (bytes memory)[] memory x = new function() external pure returns (bytes memory)[](1);
x[0] = other.f;
return abi.encodePacked(uint8(8), x, uint8(2));
}
function f() public pure returns (bytes memory) {}
}
)";
for (auto v2: {false, true})
{
string prefix = "pragma abicoder " + string(v2 ? "v2" : "v1") + ";\n";
compileAndRun(prefix + sourceCode, 0, "C");
string directEncoding = asString(fromHex("08" "1112131400000000000011121314000000000087" "26121ff0" "02"));
ABI_CHECK(callContractFunction("testDirect()"), encodeArgs(0x20, directEncoding.size(), directEncoding));
string arrayEncoding = asString(fromHex("08" "1112131400000000000011121314000000000087" "26121ff0" "0000000000000000" "02"));
ABI_CHECK(callContractFunction("testFixedArray()"), encodeArgs(0x20, arrayEncoding.size(), arrayEncoding));
ABI_CHECK(callContractFunction("testDynamicArray()"), encodeArgs(0x20, arrayEncoding.size(), arrayEncoding));
}
}
BOOST_AUTO_TEST_CASE(abi_encodePackedV2_structs)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S {
uint8 a;
int16 b;
uint8[2] c;
int16[] d;
}
S s;
event E(S indexed);
constructor() {
s.a = 0x12;
s.b = -7;
s.c[0] = 2;
s.c[1] = 3;
s.d.push(-7);
s.d.push(-8);
}
function testStorage() public {
emit E(s);
}
function testMemory() public {
S memory m = s;
emit E(m);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes structEnc = encodeArgs(int(0x12), u256(-7), int(2), int(3), u256(-7), u256(-8));
ABI_CHECK(callContractFunction("testStorage()"), encodeArgs());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint8,int16,uint8[2],int16[]))")));
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(asString(structEnc)));
ABI_CHECK(callContractFunction("testMemory()"), encodeArgs());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint8,int16,uint8[2],int16[]))")));
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(asString(structEnc)));
}
BOOST_AUTO_TEST_CASE(abi_encodePackedV2_nestedArray)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
struct S {
uint8 a;
int16 b;
}
event E(S[2][][3] indexed);
function testNestedArrays() public {
S[2][][3] memory x;
x[1] = new S[2][](2);
x[1][0][0].a = 1;
x[1][0][0].b = 2;
x[1][0][1].a = 3;
x[1][1][1].b = 4;
emit E(x);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes structEnc = encodeArgs(1, 2, 3, 0, 0, 0, 0, 4);
ABI_CHECK(callContractFunction("testNestedArrays()"), encodeArgs());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint8,int16)[2][][3])")));
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(asString(structEnc)));
}
BOOST_AUTO_TEST_CASE(abi_encodePackedV2_arrayOfStrings)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
string[] x;
event E(string[] indexed);
constructor() {
x.push("abc");
x.push("0123456789012345678901234567890123456789");
}
function testStorage() public {
emit E(x);
}
function testMemory() public {
string[] memory y = x;
emit E(y);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes arrayEncoding = encodeArgs("abc", "0123456789012345678901234567890123456789");
ABI_CHECK(callContractFunction("testStorage()"), encodeArgs());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(string[])")));
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(asString(arrayEncoding)));
ABI_CHECK(callContractFunction("testMemory()"), encodeArgs());
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E(string[])")));
BOOST_CHECK_EQUAL(logTopic(0, 1), util::keccak256(asString(arrayEncoding)));
}
BOOST_AUTO_TEST_CASE(event_signature_in_library)
{
// This tests a bug that was present where the "internal signature"
// for structs was also used for events.
char const* sourceCode = R"(
pragma abicoder v2;
library L {
struct S {
uint8 a;
int16 b;
}
event E(S indexed, S);
function f() internal {
S memory s;
emit E(s, s);
}
}
contract C {
constructor() {
L.f();
}
}
)";
compileAndRun(sourceCode, 0, "C");
BOOST_REQUIRE_EQUAL(numLogTopics(0), 2);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("E((uint8,int16),(uint8,int16))")));
}
BOOST_AUTO_TEST_CASE(abi_encode_with_selector)
{
char const* sourceCode = R"(
contract C {
function f0() public pure returns (bytes memory) {
return abi.encodeWithSelector(0x12345678);
}
function f1() public pure returns (bytes memory) {
return abi.encodeWithSelector(0x12345678, "abc");
}
function f2() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
return abi.encodeWithSelector(x, "abc");
}
function f3() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
return abi.encodeWithSelector(x, uint(-1));
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f0()"), encodeArgs(0x20, 4, "\x12\x34\x56\x78"));
bytes expectation;
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f1()"), expectation);
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f2()"), expectation);
expectation = encodeArgs(0x20, 4 + 0x20) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(u256(-1)) + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f3()"), expectation);
}
BOOST_AUTO_TEST_CASE(abi_encode_with_selectorv2)
{
char const* sourceCode = R"(
pragma abicoder v2;
contract C {
function f0() public pure returns (bytes memory) {
return abi.encodeWithSelector(0x12345678);
}
function f1() public pure returns (bytes memory) {
return abi.encodeWithSelector(0x12345678, "abc");
}
function f2() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
return abi.encodeWithSelector(x, "abc");
}
function f3() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
return abi.encodeWithSelector(x, uint(-1));
}
struct S { uint a; string b; uint16 c; }
function f4() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
S memory s;
s.a = 0x1234567;
s.b = "Lorem ipsum dolor sit ethereum........";
s.c = 0x1234;
return abi.encodeWithSelector(x, uint(-1), s, uint(3));
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f0()"), encodeArgs(0x20, 4, "\x12\x34\x56\x78"));
bytes expectation;
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f1()"), expectation);
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f2()"), expectation);
expectation = encodeArgs(0x20, 4 + 0x20) + bytes{0x12, 0x34, 0x56, 0x78} + encodeArgs(u256(-1)) + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f3()"), expectation);
expectation =
encodeArgs(0x20, 4 + 0x120) +
bytes{0x12, 0x34, 0x56, 0x78} +
encodeArgs(u256(-1), 0x60, u256(3), 0x1234567, 0x60, 0x1234, 38, "Lorem ipsum dolor sit ethereum........") +
bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f4()"), expectation);
}
BOOST_AUTO_TEST_CASE(abi_encode_with_signature)
{
char const* sourceCode = R"T(
contract C {
function f0() public pure returns (bytes memory) {
return abi.encodeWithSignature("f(uint256)");
}
function f1() public pure returns (bytes memory) {
string memory x = "f(uint256)";
return abi.encodeWithSignature(x, "abc");
}
string xstor;
function f1s() public returns (bytes memory) {
xstor = "f(uint256)";
return abi.encodeWithSignature(xstor, "abc");
}
function f2() public pure returns (bytes memory r, uint[] memory ar) {
string memory x = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.";
uint[] memory y = new uint[](4);
y[0] = uint(-1);
y[1] = uint(-2);
y[2] = uint(-3);
y[3] = uint(-4);
r = abi.encodeWithSignature(x, y);
// The hash uses temporary memory. This allocation re-uses the memory
// and should initialize it properly.
ar = new uint[](2);
}
}
)T";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f0()"), encodeArgs(0x20, 4, "\xb3\xde\x64\x8b"));
bytes expectation;
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0xb3, 0xde, 0x64, 0x8b} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f1()"), expectation);
ABI_CHECK(callContractFunction("f1s()"), expectation);
expectation =
encodeArgs(0x40, 0x140, 4 + 0xc0) +
(bytes{0xe9, 0xc9, 0x21, 0xcd} + encodeArgs(0x20, 4, u256(-1), u256(-2), u256(-3), u256(-4)) + bytes(0x20 - 4)) +
encodeArgs(2, 0, 0);
ABI_CHECK(callContractFunction("f2()"), expectation);
}
BOOST_AUTO_TEST_CASE(abi_encode_with_signaturev2)
{
char const* sourceCode = R"T(
pragma abicoder v2;
contract C {
function f0() public pure returns (bytes memory) {
return abi.encodeWithSignature("f(uint256)");
}
function f1() public pure returns (bytes memory) {
string memory x = "f(uint256)";
return abi.encodeWithSignature(x, "abc");
}
string xstor;
function f1s() public returns (bytes memory) {
xstor = "f(uint256)";
return abi.encodeWithSignature(xstor, "abc");
}
function f2() public pure returns (bytes memory r, uint[] memory ar) {
string memory x = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.";
uint[] memory y = new uint[](4);
y[0] = uint(-1);
y[1] = uint(-2);
y[2] = uint(-3);
y[3] = uint(-4);
r = abi.encodeWithSignature(x, y);
// The hash uses temporary memory. This allocation re-uses the memory
// and should initialize it properly.
ar = new uint[](2);
}
struct S { uint a; string b; uint16 c; }
function f4() public pure returns (bytes memory) {
bytes4 x = 0x12345678;
S memory s;
s.a = 0x1234567;
s.b = "Lorem ipsum dolor sit ethereum........";
s.c = 0x1234;
return abi.encodeWithSignature(s.b, uint(-1), s, uint(3));
}
}
)T";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f0()"), encodeArgs(0x20, 4, "\xb3\xde\x64\x8b"));
bytes expectation;
expectation = encodeArgs(0x20, 4 + 0x60) + bytes{0xb3, 0xde, 0x64, 0x8b} + encodeArgs(0x20, 3, "abc") + bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f1()"), expectation);
ABI_CHECK(callContractFunction("f1s()"), expectation);
expectation =
encodeArgs(0x40, 0x140, 4 + 0xc0) +
(bytes{0xe9, 0xc9, 0x21, 0xcd} + encodeArgs(0x20, 4, u256(-1), u256(-2), u256(-3), u256(-4)) + bytes(0x20 - 4)) +
encodeArgs(2, 0, 0);
ABI_CHECK(callContractFunction("f2()"), expectation);
expectation =
encodeArgs(0x20, 4 + 0x120) +
bytes{0x7c, 0x79, 0x30, 0x02} +
encodeArgs(u256(-1), 0x60, u256(3), 0x1234567, 0x60, 0x1234, 38, "Lorem ipsum dolor sit ethereum........") +
bytes(0x20 - 4);
ABI_CHECK(callContractFunction("f4()"), expectation);
}
BOOST_AUTO_TEST_CASE(code_access)
{
char const* sourceCode = R"(
contract C {
function lengths() public pure returns (bool) {
uint crLen = type(D).creationCode.length;
uint runLen = type(D).runtimeCode.length;
require(runLen < crLen);
require(crLen >= 0x20);
require(runLen >= 0x20);
return true;
}
function creation() public pure returns (bytes memory) {
return type(D).creationCode;
}
function runtime() public pure returns (bytes memory) {
return type(D).runtimeCode;
}
function runtimeAllocCheck() public pure returns (bytes memory) {
uint[] memory a = new uint[](2);
bytes memory c = type(D).runtimeCode;
uint[] memory b = new uint[](2);
a[0] = 0x1111;
a[1] = 0x2222;
b[0] = 0x3333;
b[1] = 0x4444;
return c;
}
}
contract D {
function f() public pure returns (uint) { return 7; }
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("lengths()"), encodeArgs(true));
bytes codeCreation = callContractFunction("creation()");
bytes codeRuntime1 = callContractFunction("runtime()");
bytes codeRuntime2 = callContractFunction("runtimeAllocCheck()");
ABI_CHECK(codeRuntime1, codeRuntime2);
}
BOOST_AUTO_TEST_CASE(contract_name)
{
char const* sourceCode = R"(
contract C {
string public nameAccessor = type(C).name;
string public constant constantNameAccessor = type(C).name;
function name() public virtual pure returns (string memory) {
return type(C).name;
}
}
contract D is C {
function name() public override pure returns (string memory) {
return type(D).name;
}
function name2() public pure returns (string memory) {
return type(C).name;
}
}
contract ThisIsAVeryLongContractNameExceeding256bits {
string public nameAccessor = type(ThisIsAVeryLongContractNameExceeding256bits).name;
string public constant constantNameAccessor = type(ThisIsAVeryLongContractNameExceeding256bits).name;
function name() public pure returns (string memory) {
return type(ThisIsAVeryLongContractNameExceeding256bits).name;
}
}
)";
compileAndRun(sourceCode, 0, "C");
bytes argsC = encodeArgs(u256(0x20), u256(1), "C");
ABI_CHECK(callContractFunction("name()"), argsC);
ABI_CHECK(callContractFunction("nameAccessor()"), argsC);
ABI_CHECK(callContractFunction("constantNameAccessor()"), argsC);
compileAndRun(sourceCode, 0, "D");
bytes argsD = encodeArgs(u256(0x20), u256(1), "D");
ABI_CHECK(callContractFunction("name()"), argsD);
ABI_CHECK(callContractFunction("name2()"), argsC);
string longName = "ThisIsAVeryLongContractNameExceeding256bits";
compileAndRun(sourceCode, 0, longName);
bytes argsLong = encodeArgs(u256(0x20), u256(longName.length()), longName);
ABI_CHECK(callContractFunction("name()"), argsLong);
ABI_CHECK(callContractFunction("nameAccessor()"), argsLong);
ABI_CHECK(callContractFunction("constantNameAccessor()"), argsLong);
}
BOOST_AUTO_TEST_CASE(event_wrong_abi_name)
{
char const* sourceCode = R"(
library ClientReceipt {
event Deposit(Test indexed _from, bytes32 indexed _id, uint _value);
function deposit(bytes32 _id) public {
Test a;
emit Deposit(a, _id, msg.value);
}
}
contract Test {
function f() public {
ClientReceipt.deposit("123");
}
}
)";
compileAndRun(sourceCode, 0, "ClientReceipt", bytes());
compileAndRun(sourceCode, 0, "Test", bytes(), map<string, h160>{{"ClientReceipt", m_contractAddress}});
callContractFunction("f()");
BOOST_REQUIRE_EQUAL(numLogs(), 1);
BOOST_CHECK_EQUAL(logAddress(0), m_contractAddress);
BOOST_REQUIRE_EQUAL(numLogTopics(0), 3);
BOOST_CHECK_EQUAL(logTopic(0, 0), util::keccak256(string("Deposit(address,bytes32,uint256)")));
}
BOOST_AUTO_TEST_CASE(uninitialized_internal_storage_function)
{
char const* sourceCode = R"(
contract Test {
function() internal x;
function f() public returns (uint r) {
function() internal t = x;
assembly { r := t }
}
}
)";
compileAndRun(sourceCode, 0, "Test");
bytes result = callContractFunction("f()");
BOOST_CHECK(!result.empty());
BOOST_CHECK(result != encodeArgs(0));
}
BOOST_AUTO_TEST_CASE(dirty_scratch_space_prior_to_constant_optimiser)
{
char const* sourceCode = R"(
contract C {
event X(uint);
constructor() {
assembly {
// make scratch space dirty
mstore(0, 0x4242424242424242424242424242424242424242424242424242424242424242)
}
uint x = 0x0000000000001234123412431234123412412342112341234124312341234124;
// This is just to create many instances of x
emit X(x + f() * g(tx.origin) ^ h(block.number));
assembly {
// make scratch space dirty
mstore(0, 0x4242424242424242424242424242424242424242424242424242424242424242)
}
emit X(x);
}
function f() internal pure returns (uint) {
return 0x0000000000001234123412431234123412412342112341234124312341234124;
}
function g(address a) internal pure returns (uint) {
return uint(a) * 0x0000000000001234123412431234123412412342112341234124312341234124;
}
function h(uint a) internal pure returns (uint) {
return a * 0x0000000000001234123412431234123412412342112341234124312341234124;
}
}
)";
compileAndRun(sourceCode, 0, "C");
BOOST_REQUIRE_EQUAL(numLogs(), 2);
BOOST_CHECK_EQUAL(logAddress(1), m_contractAddress);
ABI_CHECK(
logData(1),
encodeArgs(u256("0x0000000000001234123412431234123412412342112341234124312341234124"))
);
}
BOOST_AUTO_TEST_CASE(strip_reason_strings)
{
char const* sourceCode = R"(
contract C {
function f(bool _x) public pure returns (uint) {
require(_x, "some reason");
return 7;
}
function g(bool _x) public pure returns (uint) {
string memory x = "some indirect reason";
require(_x, x);
return 8;
}
function f1(bool _x) public pure returns (uint) {
if (!_x) revert( /* */ "some reason" /* */ );
return 9;
}
function g1(bool _x) public pure returns (uint) {
string memory x = "some indirect reason";
if (!_x) revert(x);
return 10;
}
}
)";
m_revertStrings = RevertStrings::Default;
compileAndRun(sourceCode, 0, "C");
if (
m_optimiserSettings == OptimiserSettings::minimal() ||
m_optimiserSettings == OptimiserSettings::none()
)
// check that the reason string IS part of the binary.
BOOST_CHECK(toHex(m_output).find("736f6d6520726561736f6e") != std::string::npos);
m_revertStrings = RevertStrings::Strip;
compileAndRun(sourceCode, 0, "C");
// check that the reason string is NOT part of the binary.
BOOST_CHECK(toHex(m_output).find("736f6d6520726561736f6e") == std::string::npos);
ABI_CHECK(callContractFunction("f(bool)", true), encodeArgs(7));
ABI_CHECK(callContractFunction("f(bool)", false), encodeArgs());
ABI_CHECK(callContractFunction("g(bool)", true), encodeArgs(8));
ABI_CHECK(callContractFunction("g(bool)", false), encodeArgs());
ABI_CHECK(callContractFunction("f1(bool)", true), encodeArgs(9));
ABI_CHECK(callContractFunction("f1(bool)", false), encodeArgs());
ABI_CHECK(callContractFunction("g1(bool)", true), encodeArgs(10));
ABI_CHECK(callContractFunction("g1(bool)", false), encodeArgs());
}
BOOST_AUTO_TEST_SUITE_END()
} // end namespaces
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