cerc-io/solidity
16
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Claim ether makes wallet & trasfers.

Browse Source 
"#require" in solidity.
This commit is contained in:
Gav Wood 2015-01-21 11:31:14 -08:00
parent 30b455e4d6
commit 376c6182ad
2 changed files with 46 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
CompilerStack.cpp
View File

@ -21,6 +21,7 @@
* Full-stack compiler that converts a source code string to bytecode.
*/
#include <boost/algorithm/string.hpp>
#include <libsolidity/AST.h>
#include <libsolidity/Scanner.h>
#include <libsolidity/Parser.h>
@ -123,9 +124,49 @@ void CompilerStack::compile(bool _optimize)
}
}
string CompilerStack::expanded(string const& _sourceCode)
{
// TODO: populate some nicer way.
static const map<string, string> c_requires = {
{ "Config", "contract Config{function lookup(uint256 service)constant returns(address a){}function kill(){}function unregister(uint256 id){}function register(uint256 id,address service){}}" },
{ "owned", "contract owned{function owned(){owner = msg.sender;}address owner;}" },
{ "mortal", "#require owned\ncontract mortal is owned {function kill() { if (msg.sender == owner) suicide(owner); }}" },
{ "NameReg", "contract NameReg{function register(string32 name){}function addressOf(string32 name)constant returns(address addr){}function unregister(){}function nameOf(address addr)constant returns(string32 name){}}" },
{ "named", "#require Config NameReg\ncontract named is mortal, owned {function named(string32 name) {NameReg(Config().lookup(1)).register(name);}" },
{ "std", "#require owned mortal Config NameReg named" },
};
string sub;
set<string> got;
function<string(string const&)> localExpanded;
localExpanded = [&](string const& s) -> string
{
string ret = s;
for (size_t p = 0; p != string::npos;)
if ((p = ret.find("#require ")) != string::npos)
{
string n = ret.substr(p + 9, ret.find_first_of('\n', p + 9) - p - 9);
ret.replace(p, n.size() + 9, "");
vector<string> rs;
boost::split(rs, n, boost::is_any_of(" \t,"), boost::token_compress_on);
for (auto const& r: rs)
if (!got.count(r))
{
if (c_requires.count(r))
sub.append("\n" + localExpanded(c_requires.at(r)) + "\n");
got.insert(r);
}
}
// TODO: remove once we have genesis contracts.
else if ((p = ret.find("Config()")) != string::npos)
ret.replace(p, 8, "Config(0x661005d2720d855f1d9976f88bb10c1a3398c77f)");
return ret;
};
return sub + localExpanded(_sourceCode);
}
bytes const& CompilerStack::compile(string const& _sourceCode, bool _optimize)
{
parse(_sourceCode);
parse(expanded(_sourceCode));
compile(_optimize);
return getBytecode();
}

4
CompilerStack.h
View File

@ -138,6 +138,10 @@ private:
Contract();
};
/// Expand source code with preprocessor-like includes.
/// @todo Replace with better framework.
std::string expanded(std::string const& _sourceCode);
void reset(bool _keepSources = false);
void resolveImports();