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| author | chriseth <chris@ethereum.org> | 2017-07-27 17:52:42 +0800 |
|---|---|---|
| committer | chriseth <chris@ethereum.org> | 2017-07-27 19:45:39 +0800 |
| commit | 7c7c2baa82ec2fa0535381c2ea3418b8623a9062 (patch) | |
| tree | 6a5bea3334a5e4c426beea7365312b314ab1f36f /libsolidity/codegen | |
| parent | 07e0a7e090111dd49e0bb6af96a4036f1bd186ac (diff) | |
| download | dexon-solidity-7c7c2baa82ec2fa0535381c2ea3418b8623a9062.tar.gz dexon-solidity-7c7c2baa82ec2fa0535381c2ea3418b8623a9062.tar.zst dexon-solidity-7c7c2baa82ec2fa0535381c2ea3418b8623a9062.zip | |
Re-allow multiple modifiers per function.
Diffstat (limited to 'libsolidity/codegen')
| -rw-r--r-- | libsolidity/codegen/CompilerContext.cpp | 12 | ||||
| -rw-r--r-- | libsolidity/codegen/CompilerContext.h | 5 |
2 files changed, 11 insertions, 6 deletions
diff --git a/libsolidity/codegen/CompilerContext.cpp b/libsolidity/codegen/CompilerContext.cpp index 9aaf5844..97b51542 100644 --- a/libsolidity/codegen/CompilerContext.cpp +++ b/libsolidity/codegen/CompilerContext.cpp @@ -124,14 +124,15 @@ void CompilerContext::addVariable(VariableDeclaration const& _declaration, unsigned _offsetToCurrent) { solAssert(m_asm->deposit() >= 0 && unsigned(m_asm->deposit()) >= _offsetToCurrent, ""); - solAssert(m_localVariables.count(&_declaration) == 0, "Variable already present"); - m_localVariables[&_declaration] = unsigned(m_asm->deposit()) - _offsetToCurrent; + m_localVariables[&_declaration].push_back(unsigned(m_asm->deposit()) - _offsetToCurrent); } void CompilerContext::removeVariable(VariableDeclaration const& _declaration) { - solAssert(!!m_localVariables.count(&_declaration), ""); - m_localVariables.erase(&_declaration); + solAssert(m_localVariables.count(&_declaration) && !m_localVariables[&_declaration].empty(), ""); + m_localVariables[&_declaration].pop_back(); + if (m_localVariables[&_declaration].empty()) + m_localVariables.erase(&_declaration); } eth::Assembly const& CompilerContext::compiledContract(const ContractDefinition& _contract) const @@ -204,7 +205,8 @@ unsigned CompilerContext::baseStackOffsetOfVariable(Declaration const& _declarat { auto res = m_localVariables.find(&_declaration); solAssert(res != m_localVariables.end(), "Variable not found on stack."); - return res->second; + solAssert(!res->second.empty(), ""); + return res->second.back(); } unsigned CompilerContext::baseToCurrentStackOffset(unsigned _baseOffset) const diff --git a/libsolidity/codegen/CompilerContext.h b/libsolidity/codegen/CompilerContext.h index 1968c1e1..13821f67 100644 --- a/libsolidity/codegen/CompilerContext.h +++ b/libsolidity/codegen/CompilerContext.h @@ -272,7 +272,10 @@ private: /// Storage offsets of state variables std::map<Declaration const*, std::pair<u256, unsigned>> m_stateVariables; /// Offsets of local variables on the stack (relative to stack base). - std::map<Declaration const*, unsigned> m_localVariables; + /// This needs to be a stack because if a modifier contains a local variable and this + /// modifier is applied twice, the position of the variable needs to be restored + /// after the nested modifier is left. + std::map<Declaration const*, std::vector<unsigned>> m_localVariables; /// List of current inheritance hierarchy from derived to base. std::vector<ContractDefinition const*> m_inheritanceHierarchy; /// Stack of current visited AST nodes, used for location attachment |