コード例 #1
0
ファイル: GlslGenerator.cs プロジェクト: ski982/Ryujinx-1
        private static void PrintBlock(CodeGenContext context, AstBlock block)
        {
            AstBlockVisitor visitor = new AstBlockVisitor(block);

            visitor.BlockEntered += (sender, e) =>
            {
                switch (e.Block.Type)
                {
                case AstBlockType.DoWhile:
                    context.AppendLine("do");
                    break;

                case AstBlockType.Else:
                    context.AppendLine("else");
                    break;

                case AstBlockType.ElseIf:
                    context.AppendLine($"else if ({GetCondExpr(context, e.Block.Condition)})");
                    break;

                case AstBlockType.If:
                    context.AppendLine($"if ({GetCondExpr(context, e.Block.Condition)})");
                    break;

                default: throw new InvalidOperationException($"Found unexpected block type \"{e.Block.Type}\".");
                }

                context.EnterScope();
            };

            visitor.BlockLeft += (sender, e) =>
            {
                context.LeaveScope();

                if (e.Block.Type == AstBlockType.DoWhile)
                {
                    context.AppendLine($"while ({GetCondExpr(context, e.Block.Condition)});");
                }
            };

            foreach (IAstNode node in visitor.Visit())
            {
                if (node is AstOperation operation)
                {
                    context.AppendLine(InstGen.GetExpression(context, operation) + ";");
                }
                else if (node is AstAssignment assignment)
                {
                    VariableType srcType = OperandManager.GetNodeDestType(assignment.Source);
                    VariableType dstType = OperandManager.GetNodeDestType(assignment.Destination);

                    string dest;

                    if (assignment.Destination is AstOperand operand && operand.Type == OperandType.Attribute)
                    {
                        dest = OperandManager.GetOutAttributeName(operand, context.Config);
                    }
                    else
                    {
                        dest = InstGen.GetExpression(context, assignment.Destination);
                    }

                    string src = ReinterpretCast(context, assignment.Source, srcType, dstType);

                    context.AppendLine(dest + " = " + src + ";");
                }