You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
4.5 KiB
95 lines
4.5 KiB
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/**
|
|
* @author Christian <c@ethdev.com>
|
|
* @date 2014
|
|
* Solidity AST to EVM bytecode compiler.
|
|
*/
|
|
|
|
#include <ostream>
|
|
#include <functional>
|
|
#include <libsolidity/ASTVisitor.h>
|
|
#include <libsolidity/CompilerContext.h>
|
|
|
|
namespace dev {
|
|
namespace solidity {
|
|
|
|
class Compiler: private ASTConstVisitor
|
|
{
|
|
public:
|
|
explicit Compiler(bool _optimize = false): m_optimize(_optimize), m_context(),
|
|
m_returnTag(m_context.newTag()) {}
|
|
|
|
void compileContract(ContractDefinition const& _contract,
|
|
std::map<ContractDefinition const*, bytes const*> const& _contracts);
|
|
bytes getAssembledBytecode() { return m_context.getAssembledBytecode(m_optimize); }
|
|
bytes getRuntimeBytecode() { return m_runtimeContext.getAssembledBytecode(m_optimize);}
|
|
void streamAssembly(std::ostream& _stream) const { m_context.streamAssembly(_stream); }
|
|
|
|
private:
|
|
/// Registers the non-function objects inside the contract with the context.
|
|
void initializeContext(ContractDefinition const& _contract,
|
|
std::map<ContractDefinition const*, bytes const*> const& _contracts);
|
|
/// Adds the code that is run at creation time. Should be run after exchanging the run-time context
|
|
/// with a new and initialized context. Adds the constructor code.
|
|
void packIntoContractCreator(ContractDefinition const& _contract, CompilerContext const& _runtimeContext);
|
|
void appendBaseConstructorCall(FunctionDefinition const& _constructor,
|
|
std::vector<ASTPointer<Expression>> const& _arguments);
|
|
void appendConstructorCall(FunctionDefinition const& _constructor);
|
|
/// Recursively searches the call graph and returns all functions referenced inside _nodes.
|
|
/// _resolveOverride is called to resolve virtual function overrides.
|
|
std::set<FunctionDefinition const*> getFunctionsCalled(std::set<ASTNode const*> const& _nodes,
|
|
std::function<FunctionDefinition const*(std::string const&)> const& _resolveFunctionOverride,
|
|
std::function<ModifierDefinition const*(std::string const&)> const& _resolveModifierOverride);
|
|
void appendFunctionSelector(ContractDefinition const& _contract);
|
|
/// Creates code that unpacks the arguments for the given function, from memory if
|
|
/// @a _fromMemory is true, otherwise from call data. @returns the size of the data in bytes.
|
|
unsigned appendCalldataUnpacker(FunctionDefinition const& _function, bool _fromMemory = false);
|
|
void appendReturnValuePacker(FunctionDefinition const& _function);
|
|
|
|
void registerStateVariables(ContractDefinition const& _contract);
|
|
|
|
virtual bool visit(FunctionDefinition const& _function) override;
|
|
virtual bool visit(IfStatement const& _ifStatement) override;
|
|
virtual bool visit(WhileStatement const& _whileStatement) override;
|
|
virtual bool visit(ForStatement const& _forStatement) override;
|
|
virtual bool visit(Continue const& _continue) override;
|
|
virtual bool visit(Break const& _break) override;
|
|
virtual bool visit(Return const& _return) override;
|
|
virtual bool visit(VariableDefinition const& _variableDefinition) override;
|
|
virtual bool visit(ExpressionStatement const& _expressionStatement) override;
|
|
virtual bool visit(PlaceholderStatement const&) override;
|
|
|
|
/// Appends one layer of function modifier code of the current function, or the function
|
|
/// body itself if the last modifier was reached.
|
|
void appendModifierOrFunctionCode();
|
|
|
|
void compileExpression(Expression const& _expression, TypePointer const& _targetType = TypePointer());
|
|
|
|
bool const m_optimize;
|
|
CompilerContext m_context;
|
|
CompilerContext m_runtimeContext;
|
|
std::vector<eth::AssemblyItem> m_breakTags; ///< tag to jump to for a "break" statement
|
|
std::vector<eth::AssemblyItem> m_continueTags; ///< tag to jump to for a "continue" statement
|
|
eth::AssemblyItem m_returnTag; ///< tag to jump to for a "return" statement
|
|
unsigned m_modifierDepth = 0;
|
|
FunctionDefinition const* m_currentFunction;
|
|
unsigned m_stackCleanupForReturn; ///< this number of stack elements need to be removed before jump to m_returnTag
|
|
};
|
|
|
|
}
|
|
}
|
|
|