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Adding source location support to AssemblyStack and thus debugging Yul sources

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This commit is contained in:
Djordje Mijovic
2020-02-25 22:19:03 +01:00
committed by chriseth
parent 44bcff42f5
commit ec083c4878
29 changed files with 136 additions and 101 deletions
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libevmasm/AssemblyItem.cpp
+91
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@@ -19,12 +19,14 @@
#include <libsolutil/CommonData.h>
#include <libsolutil/FixedHash.h>
#include <liblangutil/SourceLocation.h>
#include <fstream>
using namespace std;
using namespace solidity;
using namespace solidity::evmasm;
using namespace solidity::langutil;
static_assert(sizeof(size_t) <= 8, "size_t must be at most 64-bits wide");
@@ -281,3 +283,92 @@ ostream& solidity::evmasm::operator<<(ostream& _out, AssemblyItem const& _item)
}
return _out;
}
std::string AssemblyItem::computeSourceMapping(
AssemblyItems const& _items,
map<string, unsigned> const& _sourceIndicesMap
)
{
string ret;
int prevStart = -1;
int prevLength = -1;
int prevSourceIndex = -1;
size_t prevModifierDepth = -1;
char prevJump = 0;
for (auto const& item: _items)
{
if (!ret.empty())
ret += ";";
SourceLocation const& location = item.location();
int length = location.start != -1 && location.end != -1 ? location.end - location.start : -1;
int sourceIndex =
location.source && _sourceIndicesMap.count(location.source->name()) ?
_sourceIndicesMap.at(location.source->name()) :
-1;
char jump = '-';
if (item.getJumpType() == evmasm::AssemblyItem::JumpType::IntoFunction)
jump = 'i';
else if (item.getJumpType() == evmasm::AssemblyItem::JumpType::OutOfFunction)
jump = 'o';
size_t modifierDepth = item.m_modifierDepth;
unsigned components = 5;
if (modifierDepth == prevModifierDepth)
{
components--;
if (jump == prevJump)
{
components--;
if (sourceIndex == prevSourceIndex)
{
components--;
if (length == prevLength)
{
components--;
if (location.start == prevStart)
components--;
}
}
}
}
if (components-- > 0)
{
if (location.start != prevStart)
ret += to_string(location.start);
if (components-- > 0)
{
ret += ':';
if (length != prevLength)
ret += to_string(length);
if (components-- > 0)
{
ret += ':';
if (sourceIndex != prevSourceIndex)
ret += to_string(sourceIndex);
if (components-- > 0)
{
ret += ':';
if (jump != prevJump)
ret += jump;
if (components-- > 0)
{
ret += ':';
if (modifierDepth != prevModifierDepth)
ret += to_string(modifierDepth);
}
}
}
}
}
prevStart = location.start;
prevLength = length;
prevSourceIndex = sourceIndex;
prevJump = jump;
prevModifierDepth = modifierDepth;
}
return ret;
}