mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/*(
|
|
This file is part of solidity.
|
|
|
|
solidity 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.
|
|
|
|
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/**
|
|
* Component that checks whether all variables are reachable on the stack.
|
|
*/
|
|
|
|
#include <libyul/CompilabilityChecker.h>
|
|
|
|
#include <libyul/AsmAnalysis.h>
|
|
#include <libyul/AsmAnalysisInfo.h>
|
|
|
|
#include <libyul/backends/evm/EVMCodeTransform.h>
|
|
#include <libyul/backends/evm/NoOutputAssembly.h>
|
|
|
|
#include <liblangutil/EVMVersion.h>
|
|
|
|
using namespace std;
|
|
using namespace yul;
|
|
using namespace dev;
|
|
|
|
map<YulString, int> CompilabilityChecker::run(
|
|
Dialect const& _dialect,
|
|
Object const& _object,
|
|
bool _optimizeStackAllocation
|
|
)
|
|
{
|
|
if (_dialect.flavour == AsmFlavour::Yul)
|
|
return {};
|
|
|
|
solAssert(_dialect.flavour == AsmFlavour::Strict, "");
|
|
|
|
if (EVMDialect const* evmDialect = dynamic_cast<EVMDialect const*>(&_dialect))
|
|
{
|
|
NoOutputEVMDialect noOutputDialect(*evmDialect);
|
|
|
|
yul::AsmAnalysisInfo analysisInfo =
|
|
yul::AsmAnalyzer::analyzeStrictAssertCorrect(noOutputDialect, _object);
|
|
|
|
BuiltinContext builtinContext;
|
|
builtinContext.currentObject = &_object;
|
|
for (auto name: _object.dataNames())
|
|
builtinContext.subIDs[name] = 1;
|
|
NoOutputAssembly assembly;
|
|
CodeTransform transform(
|
|
assembly,
|
|
analysisInfo,
|
|
*_object.code,
|
|
noOutputDialect,
|
|
builtinContext,
|
|
_optimizeStackAllocation
|
|
);
|
|
try
|
|
{
|
|
transform(*_object.code);
|
|
}
|
|
catch (StackTooDeepError const&)
|
|
{
|
|
solAssert(!transform.stackErrors().empty(), "Got stack too deep exception that was not stored.");
|
|
}
|
|
|
|
std::map<YulString, int> functions;
|
|
for (StackTooDeepError const& error: transform.stackErrors())
|
|
functions[error.functionName] = max(error.depth, functions[error.functionName]);
|
|
|
|
return functions;
|
|
}
|
|
else
|
|
return {};
|
|
}
|