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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/*
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>
* @author Gav Wood <g@ethdev.com>
* @date 2014
* Full-stack compiler that converts a source code string to bytecode.
*/
#pragma once
#include <ostream>
#include <string>
#include <memory>
#include <vector>
#include <boost/noncopyable.hpp>
#include <json/json.h>
#include <libdevcore/Common.h>
#include <libdevcore/FixedHash.h>
#include <libevmasm/SourceLocation.h>
#include <libevmasm/LinkerObject.h>
#include <libsolidity/interface/Exceptions.h>
namespace dev
{
namespace eth
{
class Assembly;
class AssemblyItem;
using AssemblyItems = std::vector<AssemblyItem>;
}
namespace solidity
{
// forward declarations
class Scanner;
class ContractDefinition;
class FunctionDefinition;
class SourceUnit;
class Compiler;
class GlobalContext;
class InterfaceHandler;
class Error;
enum class DocumentationType: uint8_t
{
NatspecUser = 1,
NatspecDev,
ABIInterface,
ABISolidityInterface
};
/**
* Easy to use and self-contained Solidity compiler with as few header dependencies as possible.
* It holds state and can be used to either step through the compilation stages (and abort e.g.
* before compilation to bytecode) or run the whole compilation in one call.
*/
class CompilerStack: boost::noncopyable
{
public:
/// Creates a new compiler stack. Adds standard sources if @a _addStandardSources.
explicit CompilerStack(bool _addStandardSources = true);
/// Resets the compiler to a state where the sources are not parsed or even removed.
void reset(bool _keepSources = false, bool _addStandardSources = true);
/// Adds a source object (e.g. file) to the parser. After this, parse has to be called again.
/// @returns true if a source object by the name already existed and was replaced.
void addSources(StringMap const& _nameContents, bool _isLibrary = false)
{
for (auto const& i: _nameContents) addSource(i.first, i.second, _isLibrary);
}
bool addSource(std::string const& _name, std::string const& _content, bool _isLibrary = false);
void setSource(std::string const& _sourceCode);
/// Parses all source units that were added
/// @returns false on error.
bool parse();
/// Sets the given source code as the only source unit apart from standard sources and parses it.
/// @returns false on error.
bool parse(std::string const& _sourceCode);
/// Returns a list of the contract names in the sources.
std::vector<std::string> contractNames() const;
std::string defaultContractName() const;
/// Compiles the source units that were previously added and parsed.
/// @returns false on error.
bool compile(bool _optimize = false, unsigned _runs = 200);
/// Parses and compiles the given source code.
/// @returns false on error.
bool compile(std::string const& _sourceCode, bool _optimize = false);
/// Inserts the given addresses into the linker objects of all compiled contracts.
void link(std::map<std::string, h160> const& _libraries);
/// Tries to translate all source files into a language suitable for formal analysis.
/// @returns false on error.
bool prepareFormalAnalysis();
std::string const& formalTranslation() const { return m_formalTranslation; }
/// @returns the assembled object for a contract.
eth::LinkerObject const& object(std::string const& _contractName = "") const;
/// @returns the runtime object for the contract.
eth::LinkerObject const& runtimeObject(std::string const& _contractName = "") const;
/// @returns the bytecode of a contract that uses an already deployed contract via CALLCODE.
/// The returned bytes will contain a sequence of 20 bytes of the format "XXX...XXX" which have to
/// substituted by the actual address. Note that this sequence starts end ends in three X
/// characters but can contain anything in between.
eth::LinkerObject const& cloneObject(std::string const& _contractName = "") const;
/// @returns normal contract assembly items
eth::AssemblyItems const* assemblyItems(std::string const& _contractName = "") const;
/// @returns runtime contract assembly items
eth::AssemblyItems const* runtimeAssemblyItems(std::string const& _contractName = "") const;
/// @returns hash of the runtime bytecode for the contract, i.e. the code that is
/// returned by the constructor or the zero-h256 if the contract still needs to be linked or
/// does not have runtime code.
dev::h256 contractCodeHash(std::string const& _contractName = "") const;
/// Streams a verbose version of the assembly to @a _outStream.
/// @arg _sourceCodes is the map of input files to source code strings
/// @arg _inJsonFromat shows whether the out should be in Json format
/// Prerequisite: Successful compilation.
Json::Value streamAssembly(std::ostream& _outStream, std::string const& _contractName = "", StringMap _sourceCodes = StringMap(), bool _inJsonFormat = false) const;
/// Returns a string representing the contract interface in JSON.
/// Prerequisite: Successful call to parse or compile.
std::string const& interface(std::string const& _contractName = "") const;
/// Returns a string representing the contract interface in Solidity.
/// Prerequisite: Successful call to parse or compile.
std::string const& solidityInterface(std::string const& _contractName = "") const;
/// Returns a string representing the contract's documentation in JSON.
/// Prerequisite: Successful call to parse or compile.
/// @param type The type of the documentation to get.
/// Can be one of 4 types defined at @c DocumentationType
std::string const& metadata(std::string const& _contractName, DocumentationType _type) const;
/// @returns the previously used scanner, useful for counting lines during error reporting.
Scanner const& scanner(std::string const& _sourceName = "") const;
/// @returns the parsed source unit with the supplied name.
SourceUnit const& ast(std::string const& _sourceName = "") const;
/// @returns the parsed contract with the supplied name. Throws an exception if the contract
/// does not exist.
ContractDefinition const& contractDefinition(std::string const& _contractName) const;
/// @returns the offset of the entry point of the given function into the list of assembly items
/// or zero if it is not found or does not exist.
size_t functionEntryPoint(
std::string const& _contractName,
FunctionDefinition const& _function
) const;
/// Helper function for logs printing. Do only use in error cases, it's quite expensive.
/// line and columns are numbered starting from 1 with following order:
/// start line, start column, end line, end column
std::tuple<int, int, int, int> positionFromSourceLocation(SourceLocation const& _sourceLocation) const;
/// @returns the list of errors that occured during parsing and type checking.
ErrorList const& errors() const { return m_errors; }
private:
/**
* Information pertaining to one source unit, filled gradually during parsing and compilation.
*/
struct Source
{
std::shared_ptr<Scanner> scanner;
std::shared_ptr<SourceUnit> ast;
std::string interface;
bool isLibrary = false;
void reset() { scanner.reset(); ast.reset(); interface.clear(); }
};
struct Contract
{
ContractDefinition const* contract = nullptr;
std::shared_ptr<Compiler> compiler;
eth::LinkerObject object;
eth::LinkerObject runtimeObject;
eth::LinkerObject cloneObject;
mutable std::unique_ptr<std::string const> interface;
mutable std::unique_ptr<std::string const> solidityInterface;
mutable std::unique_ptr<std::string const> userDocumentation;
mutable std::unique_ptr<std::string const> devDocumentation;
};
void resolveImports();
/// Compile a single contract and put the result in @a _compiledContracts.
void compileContract(
bool _optimize,
unsigned _runs,
ContractDefinition const& _contract,
std::map<ContractDefinition const*, eth::Assembly const*>& _compiledContracts
);
Contract const& contract(std::string const& _contractName = "") const;
Source const& source(std::string const& _sourceName = "") const;
bool m_parseSuccessful;
std::map<std::string const, Source> m_sources;
std::shared_ptr<GlobalContext> m_globalContext;
std::vector<Source const*> m_sourceOrder;
std::map<std::string const, Contract> m_contracts;
std::string m_formalTranslation;
ErrorList m_errors;
};
}
}
|
