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Merge pull request #500 from chriseth/sol_jumptable

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Replace function selector jump table by more resilient linear time check.
This commit is contained in:
Gav Wood 2014-11-14 12:06:25 +01:00
commit e4228083ed
2 changed files with 23 additions and 7 deletions
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14
solidityCompiler.cpp
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@ -80,7 +80,7 @@ BOOST_AUTO_TEST_CASE(smoke_test)
"}\n";
bytes code = compileContract(sourceCode);
unsigned boilerplateSize = 51;
unsigned boilerplateSize = 42;
bytes expectation({byte(Instruction::JUMPDEST),
byte(Instruction::PUSH1), 0x0, // initialize local variable x
byte(Instruction::PUSH1), 0x2,
@ -100,8 +100,8 @@ BOOST_AUTO_TEST_CASE(different_argument_numbers)
"}\n";
bytes code = compileContract(sourceCode);
unsigned shift = 75;
unsigned boilerplateSize = 88;
unsigned shift = 70;
unsigned boilerplateSize = 83;
bytes expectation({byte(Instruction::JUMPDEST),
byte(Instruction::PUSH1), 0x0, // initialize return variable d
byte(Instruction::DUP3),
@ -153,8 +153,8 @@ BOOST_AUTO_TEST_CASE(ifStatement)
"}\n";
bytes code = compileContract(sourceCode);
unsigned shift = 38;
unsigned boilerplateSize = 51;
unsigned shift = 29;
unsigned boilerplateSize = 42;
bytes expectation({byte(Instruction::JUMPDEST),
byte(Instruction::PUSH1), 0x0,
byte(Instruction::DUP1),
@ -195,8 +195,8 @@ BOOST_AUTO_TEST_CASE(loops)
"}\n";
bytes code = compileContract(sourceCode);
unsigned shift = 38;
unsigned boilerplateSize = 51;
unsigned shift = 29;
unsigned boilerplateSize = 42;
bytes expectation({byte(Instruction::JUMPDEST),
byte(Instruction::JUMPDEST),
byte(Instruction::PUSH1), 0x1,

16
solidityEndToEndTest.cpp
View File

@ -148,6 +148,22 @@ BOOST_AUTO_TEST_CASE(recursive_calls)
BOOST_CHECK(testSolidityAgainstCpp(0, recursive_calls_cpp, u256(4)));
}
BOOST_AUTO_TEST_CASE(multiple_functions)
{
char const* sourceCode = "contract test {\n"
" function a() returns(uint n) { return 0; }\n"
" function b() returns(uint n) { return 1; }\n"
" function c() returns(uint n) { return 2; }\n"
" function f() returns(uint n) { return 3; }\n"
"}\n";
compileAndRun(sourceCode);
BOOST_CHECK(callFunction(0, bytes()) == toBigEndian(u256(0)));
BOOST_CHECK(callFunction(1, bytes()) == toBigEndian(u256(1)));
BOOST_CHECK(callFunction(2, bytes()) == toBigEndian(u256(2)));
BOOST_CHECK(callFunction(3, bytes()) == toBigEndian(u256(3)));
BOOST_CHECK(callFunction(4, bytes()) == bytes());
}
BOOST_AUTO_TEST_CASE(while_loop)
{
char const* sourceCode = "contract test {\n"