blob: 70e6c44f2f84df421e6e624ef5961132d749147f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
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 <libsolidity/ASTVisitor.h>
#include <libsolidity/CompilerContext.h>
namespace dev {
namespace solidity {
class Compiler: private ASTVisitor
{
public:
Compiler(): m_returnTag(m_context.newTag()) {}
void compileContract(ContractDefinition& _contract, std::vector<MagicVariableDeclaration const*> const& _magicGlobals);
bytes getAssembledBytecode(bool _optimize = false) { return m_context.getAssembledBytecode(_optimize); }
void streamAssembly(std::ostream& _stream) const { m_context.streamAssembly(_stream); }
private:
/// Creates a new compiler context / assembly, packs the current code into the data part and
/// adds the constructor code.
void packIntoContractCreator(ContractDefinition const& _contract);
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& _function) override;
virtual bool visit(IfStatement& _ifStatement) override;
virtual bool visit(WhileStatement& _whileStatement) override;
virtual bool visit(Continue& _continue) override;
virtual bool visit(Break& _break) override;
virtual bool visit(Return& _return) override;
virtual bool visit(VariableDefinition& _variableDefinition) override;
virtual bool visit(ExpressionStatement& _expressionStatement) override;
CompilerContext m_context;
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
};
}
}
|
