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Report memoryguard in stack too deep error.

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This commit is contained in:
Daniel Kirchner 2022-02-03 12:37:40 +01:00
parent 9bcfcc61a7
commit dfb7bf2853
1 changed files with 18 additions and 1 deletions
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19
libyul/backends/evm/EVMObjectCompiler.cpp
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@ -25,6 +25,8 @@
#include <libyul/backends/evm/EVMDialect.h>
#include <libyul/backends/evm/OptimizedEVMCodeTransform.h>
#include <libyul/optimiser/FunctionCallFinder.h>
#include <libyul/Object.h>
#include <libyul/Exceptions.h>
@ -74,7 +76,22 @@ void EVMObjectCompiler::run(Object& _object, bool _optimize)
OptimizedEVMCodeTransform::UseNamedLabels::ForFirstFunctionOfEachName
);
if (!stackErrors.empty())
BOOST_THROW_EXCEPTION(stackErrors.front());
{
vector<FunctionCall*> memoryGuardCalls = FunctionCallFinder::run(
*_object.code,
"memoryguard"_yulstring
);
auto stackError = stackErrors.front();
string msg = stackError.comment() ? *stackError.comment() : "";
if (memoryGuardCalls.empty())
msg += "\nNo memoryguard was present. "
"Consider using memory-safe assembly only and annotating it via "
"\"/// @solidity memory-safe-assembly\".";
else
msg += "\nmemoryguard was present.";
stackError << util::errinfo_comment(msg);
BOOST_THROW_EXCEPTION(stackError);
}
}
else
{