Method AppendTwoOperand

lang/rust/pseudorust.cpp:273–362

void PseudoRustFunction::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();
		GetExprText(high, emitter, settings);
		emitter.Append(TextToken, ", ");
		GetExprText(low, emitter, settings);
		emitter.AppendCloseParen();
	}

	if (operand == " + " || operand == " - ")
	{
		const auto exprType = leftExpr.GetType();
		if (exprType && exprType->IsPointer())
		{
			GetExprText(leftExpr, emitter, settings, MemberAndFunctionOperatorPrecedence);
			emitter.Append(TextToken, ".");
			emitter.Append(OperationToken, "byte_offset");
			emitter.AppendOpenParen();
			if (operand == " - ")
			{
				emitter.Append(OperationToken, "-");
				GetExprText(rightExpr, emitter, settings, UnaryOperatorPrecedence);
			}
			else
			{
				GetExprText(rightExpr, emitter, settings);
			}
			emitter.AppendCloseParen();