diff options
Diffstat (limited to 'libevmasm/AssemblyItem.cpp')
| -rw-r--r-- | libevmasm/AssemblyItem.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/libevmasm/AssemblyItem.cpp b/libevmasm/AssemblyItem.cpp index 54e38de8..b790e094 100644 --- a/libevmasm/AssemblyItem.cpp +++ b/libevmasm/AssemblyItem.cpp @@ -20,6 +20,7 @@ */ #include "AssemblyItem.h" +#include <libevmasm/SemanticInformation.h> #include <fstream> using namespace std; @@ -97,6 +98,28 @@ int AssemblyItem::deposit() const return 0; } +bool AssemblyItem::canBeFunctional() const +{ + switch (m_type) + { + case Operation: + return !SemanticInformation::isDupInstruction(*this) && !SemanticInformation::isSwapInstruction(*this); + case Push: + case PushString: + case PushTag: + case PushData: + case PushSub: + case PushSubSize: + case PushProgramSize: + case PushLibraryAddress: + return true; + case Tag: + return false; + default:; + } + return 0; +} + string AssemblyItem::getJumpTypeAsString() const { switch (m_jumpType) @@ -111,6 +134,65 @@ string AssemblyItem::getJumpTypeAsString() const } } +string AssemblyItem::toAssemblyText() const +{ + string text; + switch (type()) + { + case Operation: + { + assertThrow(isValidInstruction(instruction()), AssemblyException, "Invalid instruction."); + string name = instructionInfo(instruction()).name; + transform(name.begin(), name.end(), name.begin(), [](unsigned char _c) { return tolower(_c); }); + text = name; + break; + } + case Push: + text = toHex(toCompactBigEndian(data(), 1), 1, HexPrefix::Add); + break; + case PushString: + assertThrow(false, AssemblyException, "Push string assembly output not implemented."); + break; + case PushTag: + assertThrow(data() < 0x10000, AssemblyException, "Sub-assembly tags not yet implemented."); + text = string("tag_") + to_string(size_t(data())); + break; + case Tag: + assertThrow(data() < 0x10000, AssemblyException, "Sub-assembly tags not yet implemented."); + text = string("tag_") + to_string(size_t(data())) + ":"; + break; + case PushData: + assertThrow(false, AssemblyException, "Push data not implemented."); + break; + case PushSub: + text = string("dataOffset(sub_") + to_string(size_t(data())) + ")"; + break; + case PushSubSize: + text = string("dataSize(sub_") + to_string(size_t(data())) + ")"; + break; + case PushProgramSize: + text = string("bytecodeSize"); + break; + case PushLibraryAddress: + text = string("linkerSymbol(\"") + toHex(data()) + string("\")"); + break; + case UndefinedItem: + assertThrow(false, AssemblyException, "Invalid assembly item."); + break; + default: + BOOST_THROW_EXCEPTION(InvalidOpcode()); + } + if (m_jumpType == JumpType::IntoFunction || m_jumpType == JumpType::OutOfFunction) + { + text += "\t//"; + if (m_jumpType == JumpType::IntoFunction) + text += " in"; + else + text += " out"; + } + return text; +} + ostream& dev::eth::operator<<(ostream& _out, AssemblyItem const& _item) { switch (_item.type()) |