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| author | Christian <c@ethdev.com> | 2014-11-24 20:23:58 +0800 |
|---|---|---|
| committer | Christian <c@ethdev.com> | 2014-11-24 20:24:03 +0800 |
| commit | 6e6b85b58a478a7e2bc0f8bee976df97f9861b91 (patch) | |
| tree | 19902870438bb0cdb76e161bd5f26319676c4600 /ExpressionCompiler.cpp | |
| parent | 5d75263ff15aadfcacd35334cbab396cce65d260 (diff) | |
| download | dexon-solidity-6e6b85b58a478a7e2bc0f8bee976df97f9861b91.tar.gz dexon-solidity-6e6b85b58a478a7e2bc0f8bee976df97f9861b91.tar.zst dexon-solidity-6e6b85b58a478a7e2bc0f8bee976df97f9861b91.zip | |
Access to blockchain data.
Diffstat (limited to 'ExpressionCompiler.cpp')
| -rw-r--r-- | ExpressionCompiler.cpp | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/ExpressionCompiler.cpp b/ExpressionCompiler.cpp index b1a49457..de8bc1d2 100644 --- a/ExpressionCompiler.cpp +++ b/ExpressionCompiler.cpp @@ -212,10 +212,11 @@ bool ExpressionCompiler::visit(FunctionCall& _functionCall) void ExpressionCompiler::endVisit(MemberAccess& _memberAccess) { + ASTString const& member = _memberAccess.getMemberName(); switch (_memberAccess.getExpression().getType()->getCategory()) { case Type::Category::INTEGER: - if (asserts(_memberAccess.getMemberName() == "balance")) + if (asserts(member == "balance")) BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Invalid member access to integer.")); m_context << eth::Instruction::BALANCE; break; @@ -224,12 +225,36 @@ void ExpressionCompiler::endVisit(MemberAccess& _memberAccess) BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Contract variables not yet implemented.")); break; case Type::Category::MAGIC: - BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Magic variables not yet implemented.")); + // we can ignore the kind of magic and only look at the name of the member + if (member == "coinbase") + m_context << eth::Instruction::COINBASE; + else if (member == "timestamp") + m_context << eth::Instruction::TIMESTAMP; + else if (member == "prevhash") + m_context << eth::Instruction::PREVHASH; + else if (member == "difficulty") + m_context << eth::Instruction::DIFFICULTY; + else if (member == "number") + m_context << eth::Instruction::NUMBER; + else if (member == "gaslimit") + m_context << eth::Instruction::GASLIMIT; + else if (member == "sender") + m_context << eth::Instruction::CALLER; + else if (member == "value") + m_context << eth::Instruction::CALLVALUE; + else if (member == "origin") + m_context << eth::Instruction::ORIGIN; + else if (member == "gas") + m_context << eth::Instruction::GAS; + else if (member == "gasprice") + m_context << eth::Instruction::GASPRICE; + else + BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown magic member.")); break; case Type::Category::STRUCT: { StructType const& type = dynamic_cast<StructType const&>(*_memberAccess.getExpression().getType()); - m_context << type.getStorageOffsetOfMember(_memberAccess.getMemberName()) << eth::Instruction::ADD; + m_context << type.getStorageOffsetOfMember(member) << eth::Instruction::ADD; m_currentLValue = LValue(m_context, LValue::STORAGE); m_currentLValue.retrieveValueIfLValueNotRequested(_memberAccess); break; |