Method AppendTwoOperand

lang/c/pseudoc.cpp:250–336

void PseudoCFunction::AppendTwoOperand(const string& operand, const HighLevelILInstruction& instr,
	HighLevelILTokenEmitter& emitter, DisassemblySettings* settings, BNOperatorPrecedence precedence,
	std::optional<bool> signedHint)
{
	const auto& twoOperand = instr.AsTwoOperand();
	const auto leftExpr = twoOperand.GetLeftExpr();
	const auto rightExpr = twoOperand.GetRightExpr();
	BNOperatorPrecedence leftPrecedence = precedence;
	switch (precedence)
	{
	case SubOperatorPrecedence:
		// Treat left side of subtraction as same level as addition. This lets
		// (a - b) - c be represented as a - b - c, but a - (b - c) does not
		// simplify at rendering
		leftPrecedence = AddOperatorPrecedence;
		break;
	case DivideOperatorPrecedence:
		// Treat left side of divison as same level as multiplication. This lets
		// (a / b) / c be represented as a / b / c, but a / (b / c) does not
		// simplify at rendering
		leftPrecedence = MultiplyOperatorPrecedence;
		break;
	default:
		break;
	}

	if (leftExpr.operation == HLIL_SPLIT)
	{
		const auto low = leftExpr.GetLowExpr();
		const auto high = leftExpr.GetHighExpr();

		emitter.Append(OperationToken, "COMBINE");
		emitter.AppendOpenParen();
		GetExprTextInternal(high, emitter, settings);
		emitter.Append(TextToken, ", ");
		GetExprTextInternal(low, emitter, settings);
		emitter.AppendCloseParen();
	}


	if (!settings || settings->IsOptionSet(ShowTypeCasts))
	{
		if (leftExpr.operation == HLIL_VAR && (operand == " + " || operand == " - "))
		{
			const auto variableType = GetFunction()->GetVariableType(leftExpr.GetVariable());
			if (variableType)
			{
				const auto childType = variableType->GetChildType();
				if (variableType->IsPointer() && childType && childType->GetWidth() != 1)
				{
					emitter.AppendOpenParen();
					emitter.Append(TypeNameToken, "char");
					emitter.Append(TextToken, "*");
					emitter.AppendCloseParen();
				}
			}
		}
	}