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authorChristian <c@ethdev.com>2014-11-10 20:13:40 +0800
committerChristian <c@ethdev.com>2014-11-10 20:13:53 +0800
commit3a016ea0b41c67eeeabf7ae0d20ceb378f13f24a (patch)
tree30a0ce4543c73bffa565694a762b43a9c3be99ef
parent16007bd191a65ecbd0635244f87f9def09aa8036 (diff)
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Replace function selector jump table by more resilient linear time check.
-rw-r--r--solidityCompiler.cpp14
-rw-r--r--solidityEndToEndTest.cpp16
2 files changed, 23 insertions, 7 deletions
diff --git a/solidityCompiler.cpp b/solidityCompiler.cpp
index ba2db67e..054ad329 100644
--- a/solidityCompiler.cpp
+++ b/solidityCompiler.cpp
@@ -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,
diff --git a/solidityEndToEndTest.cpp b/solidityEndToEndTest.cpp
index 796adcb1..788c388e 100644
--- a/solidityEndToEndTest.cpp
+++ b/solidityEndToEndTest.cpp
@@ -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"