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| author | chriseth <c@ethdev.com> | 2015-10-04 17:05:57 +0800 |
|---|---|---|
| committer | chriseth <c@ethdev.com> | 2015-10-06 20:20:06 +0800 |
| commit | ce25ddfa6a9b8cfff08b4a05591dcc3b4a8b63cc (patch) | |
| tree | ea0f50129f8e1837f3fcef38f8101b23e6e703c6 | |
| parent | 421dcf4c1a38a5e691aec5d791155adbcf732c90 (diff) | |
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Encode storage items correctly for library calls.
| -rw-r--r-- | libsolidity/CompilerUtils.cpp | 9 | ||||
| -rw-r--r-- | libsolidity/ExpressionCompiler.cpp | 3 | ||||
| -rw-r--r-- | test/libsolidity/SolidityEndToEndTest.cpp | 26 |
3 files changed, 36 insertions, 2 deletions
diff --git a/libsolidity/CompilerUtils.cpp b/libsolidity/CompilerUtils.cpp index 583d267a..e1152202 100644 --- a/libsolidity/CompilerUtils.cpp +++ b/libsolidity/CompilerUtils.cpp @@ -189,7 +189,14 @@ void CompilerUtils::encodeToMemory( copyToStackTop(argSize - stackPos + dynPointers + 2, _givenTypes[i]->sizeOnStack()); solAssert(!!targetType, "Externalable type expected."); TypePointer type = targetType; - if ( + if (_givenTypes[i]->dataStoredIn(DataLocation::Storage) && targetType->isValueType()) + { + // special case: convert storage reference type to value type - this is only + // possible for library calls where we just forward the storage reference + solAssert(_encodeAsLibraryTypes, ""); + solAssert(_givenTypes[i]->sizeOnStack() == 1, ""); + } + else if ( _givenTypes[i]->dataStoredIn(DataLocation::Storage) || _givenTypes[i]->dataStoredIn(DataLocation::CallData) || _givenTypes[i]->category() == Type::Category::StringLiteral diff --git a/libsolidity/ExpressionCompiler.cpp b/libsolidity/ExpressionCompiler.cpp index 49bf2559..a4b63696 100644 --- a/libsolidity/ExpressionCompiler.cpp +++ b/libsolidity/ExpressionCompiler.cpp @@ -1179,7 +1179,8 @@ void ExpressionCompiler::appendExternalFunctionCall( argumentTypes, _functionType.parameterTypes(), _functionType.padArguments(), - _functionType.takesArbitraryParameters() + _functionType.takesArbitraryParameters(), + isCallCode ); // Stack now: diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp index c40a027a..26185b41 100644 --- a/test/libsolidity/SolidityEndToEndTest.cpp +++ b/test/libsolidity/SolidityEndToEndTest.cpp @@ -5383,6 +5383,32 @@ BOOST_AUTO_TEST_CASE(internal_types_in_library) BOOST_CHECK(callContractFunction("f()") == encodeArgs(u256(4), u256(17))); } +BOOST_AUTO_TEST_CASE(differentiate_storage_and_memory_in_libraries) +{ + char const* sourceCode = R"( + library Lib { + function f(uint[] storage x) returns (uint) { return 1; } + function f(uint[] memory x) returns (uint) { return 2; } + } + contract Test { + uint[] data; + function f() returns (uint a,) + { + uint[] memory d = data; + Lib.f(d) + data["abc"].length = 20; + 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, Address>{{"Lib", m_contractAddress}}); + BOOST_CHECK(callContractFunction("f()") == encodeArgs(u256(4), u256(17))); +} + BOOST_AUTO_TEST_CASE(short_strings) { // This test verifies that the byte array encoding that combines length and data works |